JP2020058063A - Receiver - Google Patents

Abstract

To provide a useful receiver.SOLUTION: The receiver includes: a cartilage conduction vibration part that does not exceed a size to fit in the concha of the ear; a plurality of vibration sources arranged to vibrate the entire cartilage conduction vibration part; and a connection part, connected to the cartilage conduction vibration part, having different acoustic impedance from the cartilage conduction vibration part. The cartilage conduction vibration part is provided with a through hole so that an external air conduction sound enters the ear canal. The plurality of vibration sources are arranged in the cartilage conduction vibration part.SELECTED DRAWING: Figure 253

Description

  The present invention relates to a receiver.

  2. Description of the Related Art Various earpieces have been proposed for various purposes, such as earphones for mobile phones and audio earphones for portable music terminals. In the field of mobile phones, there has been proposed a mobile phone that employs a bone conduction speaker in order to provide a mobile phone capable of clearly transmitting and receiving even under high noise, and provided with an external ear canal closing means together with the bone conduction speaker. (Patent Document 1) On the other hand, as a method of using a bone conduction speaker, by manually adjusting the pressure at which the vibrating surface abutting on the tragus comes into contact with the tragus, the cartilage can be guided according to the level of external noise. It has also been proposed to change the transmission ratio between the voice information via the air and the voice information via the air guide. (Patent Document 2) Further, it has been proposed to use a piezoelectric element as a bone conduction vibration source. In addition, as a receiving device for a mobile phone, a wireless communication device that has a transmission / reception function that is connected to a communication device capable of voice communication via a communication network so as to be able to wirelessly communicate with a communication partner and has a voice communication function via a communication device. A headset with a communication function has been proposed. (Patent Document 3) Further, a spectacle type interface device provided with a display unit for displaying image information transmitted from a mobile phone or the like to a wireless communication unit on a lens and an audio unit having a bone conduction earphone and a microphone has been proposed. ing. (Patent Document 4)

JP 2003-348208 A Japanese Patent No. 4541111 JP 2006-86581 A JP 2005-352024 A

  However, there are many issues to be considered further with respect to the receiver.

  In view of the above, an object of the present invention is to provide a more useful receiver.

  In order to achieve the above object, the present invention provides a cartilage conduction vibration unit that does not exceed a size that fits into the concha of the concha, a vibration source arranged to vibrate the entire cartilage conduction vibration unit, and the cartilage conduction vibration And a connecting part connected to a drive signal source for the vibration source, the connecting part having a different acoustic impedance from the cartilage conduction vibration part. As a result, efficient cartilage conduction can be realized, and the generation of air conduction sound can be suppressed. According to a specific feature, a penetrating hole is provided in the cartilage conduction vibrating portion so that an external air conduction sound enters an external auditory canal.

  According to another specific feature, said connection is elastic. According to another specific feature, the earpiece of the present invention has an ear hook, wherein the drive signal source is provided on the ear hook, and the connection portion is connected to the ear hook and the cartilage conduction vibration. Connect the unit. Thereby, transmission of the vibration of the cartilage conduction vibration part conduction to the ear hook part is suppressed.

  According to another specific feature, the ear hook portion and the cartilage conduction vibration portion have a pair for each of the right ear and the left ear, and the drive signal source is provided on one of the pair of ear hook portions. . Thus, it is possible to provide a stereo receiver that suppresses the generation of air conduction sounds.

  According to a more specific feature, the earpiece includes a battery provided on each of the pair of ear hooks and suppressing the vibration of the ear hook by its weight, and is provided on each of the pair of ear hooks. The batteries both supply power to a drive signal source provided on one of the pair of ear hooks. This effectively suppresses the vibration of the ear hooks for both ears. According to a more specific feature, the batteries provided in each of the pair of ear hooks are connected in series.

  According to another particular feature, said connection is a flexible cable. As a result, transmission of vibration through the cable is suppressed. According to a more specific feature, the flexible cable is of a length that causes slack to prevent transmission of vibration. As a result, it is possible to suppress the transmission of the vibration due to the cable being in the state of the telephone.

  According to a more specific feature, the receiving device includes a pair of the cartilage conduction vibrating portions for the right ear and the left ear, and an ear hook portion provided for one ear and having the drive signal source. The pair of cartilage electric vibrating sections are both connected to an ear hook section provided for the one ear, and between the cartilage conduction vibrating section having no ear hook section and the ear hook section. Connected by the flexible cable. Thus, transmission of vibration to the ear hook portion can be suppressed.

  According to another more specific feature, the receiving device has a pair of the cartilage conduction vibration units for the right ear and the left ear, respectively, and the pair of cartilage conduction vibration units are both driven by the flexible cable. Connected to the signal source. Thus, transmission of vibration to the drive signal source can be suppressed.

  According to another feature of the present invention, there is provided a receiver including a cartilage conduction vibrator provided with a plurality of piezoelectric bimorph elements having the same frequency characteristics as a vibration source. Thereby, effective cartilage conduction can be obtained by the small cartilage conduction vibrating portion.

  According to another feature of the present invention, there is provided a receiver including a cartilage conduction vibrating portion having a curved periphery and a piezoelectric bimorph element curved along the periphery as a vibration source. Thereby, effective cartilage conduction can be obtained by the small cartilage conduction vibrating portion.

  According to another feature of the present invention, there is provided a receiver including a cartilage conduction vibration unit and a piezoelectric bimorph element extending to the center of the cartilage conduction vibration unit as a vibration source. Thereby, effective cartilage conduction can be obtained by the small cartilage conduction vibrating portion.

  As described above, according to the present invention, a more useful receiver is provided.

FIG. 2 is a perspective view showing Example 1 of the mobile phone according to the embodiment of the present invention. (Example 1) It is a side view of Example 1 showing the function of the right ear use state and the left ear use state. FIG. 2 is a block diagram of the first embodiment. 3 is a flowchart illustrating an operation of a control unit according to the first exemplary embodiment in FIG. 2. FIG. 9 is a perspective view showing Example 2 of the mobile phone according to the embodiment of the present invention. (Example 2) FIG. 9 is a perspective view showing Example 3 of the mobile phone according to the embodiment of the present invention. (Example 3) FIG. 9 is a perspective view showing Example 4 of the mobile phone according to the embodiment of the present invention. (Example 4) FIG. 14 is a block diagram of a fourth embodiment. FIG. 18 is a conceptual block diagram of a main part showing a configuration related to an earplug bone conduction effect according to a fourth embodiment. 9 is a flowchart of the operation of the control unit according to the fourth embodiment of FIG. It is a perspective view which shows Example 5 of the mobile telephone based on Embodiment of this invention. (Example 5) 12 is a flowchart of the operation of the control unit according to the fifth embodiment of FIG. It is a perspective view which shows Example 6 of the mobile telephone which concerns on embodiment of this invention, (A) is a front perspective view, (B) is a rear perspective view, (C) is a rear perspective view (B) of FIG. It is sectional drawing in the B cut surface. (Example 6) 14 is a flowchart of the operation of the control unit according to the sixth embodiment of FIG. It is a perspective view which shows Example 7 of the mobile telephone which concerns on embodiment of this invention, (A) is a front perspective view, (B) is a rear perspective view, (C) is a rear perspective view (B) of FIG. It is principal part sectional drawing in the B cutting surface. (Example 7) 16 is a flowchart of the operation of the control unit according to the seventh embodiment of FIG. It is a perspective view which shows Example 8 of the mobile telephone which concerns on embodiment of this invention, (A) is a front perspective view, (B) is a rear perspective view, (C) is a rear perspective view (B) of (B). It is sectional drawing in the B cut surface. (Example 8) It is a perspective view which shows Example 9 of the mobile telephone which concerns on embodiment of this invention, (A) is a front perspective view, (B) is a rear perspective view, (C) is a rear perspective view (B) of FIG. It is sectional drawing in the B cut surface. (Example 9) It is a perspective view which shows Example 10 of the mobile telephone which concerns on embodiment of this invention. (Example 10) FIG. 21 is a perspective view showing Example 11 of the mobile phone according to the embodiment of the present invention. (Example 11) It is a side view of Example 11 showing the function of the right ear use state and the left ear use state. FIG. 21 is a perspective view showing Example 12 of the mobile phone according to the embodiment of the present invention. (Example 12) 23 is a flowchart of the operation of the control unit according to the twelfth embodiment of FIG. FIG. 21 is a perspective view showing Example 13 of the mobile phone according to the embodiment of the present invention. (Example 13) FIG. 21 is a perspective view showing Example 14 of the mobile phone according to the embodiment of the present invention. (Example 14) It is a system configuration | structure figure of Example 15 which concerns on embodiment of this invention. (Example 15) It is a system configuration | structure figure of Example 16 which concerns on embodiment of this invention. (Example 16) FIG. 37 is a block diagram of a sixteenth embodiment. FIG. 37 is a block diagram of a seventeenth embodiment. (Example 17) 30 is a flowchart of the operation of the control unit of the transmission / reception unit in Embodiment 17 in FIG. 29. FIG. 39 is a flowchart of the operation of the control unit of the transmission / reception unit in the eighteenth embodiment. (Example 18) FIG. 35 is a system configuration diagram of Example 19 according to the embodiment of the present invention. (Example 19) It is a system configuration | structure figure of Example 20 which concerns on embodiment of this invention. (Example 20) It is a principal part side view of Example 21 which concerns on embodiment of this invention. (Example 21) It is a top view of Example 22 which concerns on embodiment of this invention. (Example 22) FIG. 37 is a block diagram of Example 23 according to an embodiment of the present invention. (Example 23) FIG. 25 is a system configuration diagram of Example 24 according to an embodiment of the present invention. (Example 24) It is a block diagram of Example 25 which concerns on embodiment of this invention. (Example 25) 34 is a cross-sectional view of a main part of Example 25. FIG. FIG. 20 is a perspective view showing a modification of the tenth embodiment in FIG. 19. It is a perspective view of Example 26 which concerns on embodiment of this invention. (Example 26) FIG. 42 is a block diagram of embodiment 26 of FIG. 41. 42 is a flowchart relating to the operation of the control unit according to the twenty-sixth embodiment in FIG. 42, which is shown in detail in step S42 with reference to FIG. It is the perspective view and sectional drawing of Example 28 which concerns on embodiment of this invention. (Example 28) FIG. 41 is a sectional view showing a first modification and a second modification of the twenty-eighth embodiment. FIG. 39 is a sectional view of a third modification and a fourth modification of the twenty-eighth embodiment. It is a perspective view which shows Example 29 which concerns on embodiment of this invention, and its modification. (Example 29) It is the perspective view and sectional drawing of Example 30 which concerns on embodiment of this invention. (Example 30) It is a longitudinal section and a transverse section of Example 31 concerning an embodiment of the invention. (Example 31) FIG. 39 is a cross-sectional view illustrating a first modification and a second modification of the embodiment 31. FIG. 37 is a perspective view of Example 32 according to an embodiment of the present invention configured as a piezoelectric bimorph element suitable for use in a mobile phone. (Example 32) It is a see-through | perspective perspective view of Example 33 which concerns on embodiment of this invention, and its modification. (Example 33). It is an external appearance perspective view of Example 33 and its modification. FIG. 35 is a transparent perspective view of Example 34 according to an embodiment of the present invention. (Example 34) FIG. 37 is a perspective view of Example 35 according to an embodiment of the present invention. (Example 35) FIG. 37 is a perspective view of Example 36 according to an embodiment of the present invention. (Example 36) FIG. 39 is a transparent perspective view of Example 37 according to an embodiment of the present invention. (Example 37) FIG. 39 is a cross-sectional block diagram related to Example 38 according to the embodiment of the present invention. (Example 38) FIG. 39 is a rear perspective view and a cross-sectional view showing a state of attachment of a cartilage conduction vibration source to a mobile phone in Example 38. 58 is a flowchart of the operation of the control unit 3439 in the working example 38 of FIG. 58. It is sectional drawing of Example 39 which concerns on embodiment of this invention, and its various modification. (Example 39) It is sectional drawing and the principal part transparent perspective view of Example 40 which concerns on embodiment of this invention, and its various modification. (Example 40) It is sectional drawing of Example 41 which concerns on embodiment of this invention. (Example 41) FIG. 39 is a cross-sectional view of various modifications of the forty-first embodiment. FIG. 43 is a cross-sectional view of Example 42 according to the embodiment of the present invention. (Example 42) FIG. 42 is a cross-sectional view of Example 43 according to an embodiment of the present invention. (Example 43) FIG. 44 is a sectional view of Example 44 according to an embodiment of the present invention. (Example 44) FIG. 45 is a cross-sectional view related to Example 45 according to the embodiment of the present invention. (Example 45) It is the perspective view and sectional drawing regarding Example 46 which concerns on embodiment of this invention. (Example 46) It is the perspective view and sectional view regarding Example 47 concerning the embodiment of the present invention. (Example 47) FIG. 61 is a perspective view and a sectional view of a modification of the example 46 according to the embodiment of the present invention. It is the perspective view and sectional view regarding Example 48 concerning an embodiment of the invention. (Example 48) FIG. 52 is an enlarged sectional view of a main part of the working example 48 and a modification example thereof. FIG. 62 is a perspective view and a cross-sectional view of Example 49 according to an embodiment of the present invention and a modification thereof. (Example 49) It is a block diagram which mixed a partial sectional view about Example 50 concerning an embodiment of the invention. (Example 50) It is a block diagram which mixed some perspective views about Example 51 concerning an embodiment of the invention. (Example 51) It is sectional drawing and the internal block diagram regarding Example 52 which concerns on embodiment of this invention. (Example 52) FIG. 77 is a perspective view and a cross-sectional view of Embodiment 52 in FIG. 77. FIG. 70 is a graph illustrating an example of measured data of a mobile phone configured based on Embodiment 46 in FIG. 69. 2A and 2B are a side view and a cross-sectional view of the ear, showing the relationship between the details of the ear structure and the mobile phone of the present invention. FIG. 54 is a block diagram of Example 53 according to the embodiment of the present invention. (Example 53) It is a block diagram of Example 54 which concerns on embodiment of this invention. (Example 54) It is the perspective view and sectional drawing of Example 55 which concerns on embodiment of this invention. (Example 54) FIG. 84 is a block diagram of an embodiment 55 of FIG. 83. FIG. 84 is a side view for explaining the distribution of vibration energy in the mobile phone according to the embodiment 55 shown in FIG. 83. It is the perspective view and sectional drawing of Example 56 which concerns on embodiment of this invention. (Example 56) FIG. 57 is a block diagram of Example 57 according to the embodiment of the present invention. (Example 57) It is the perspective view and sectional drawing of Example 58 which concerns on embodiment of this invention. (Example 58) It is the perspective view and sectional view of Example 59 which concerns on embodiment of this invention. (Example 59) It is the perspective view and sectional drawing of Example 60 which concerns on embodiment of this invention. (Example 60) It is the perspective view and sectional drawing of Example 61 which concerns on embodiment of this invention. (Example 61) It is the perspective view and side view of Example 62 which concerns on embodiment of this invention. (Example 62) FIG. 94 is a block diagram of an embodiment 62 in FIG. 93. FIG. 93 is a side sectional view of the cordless handset according to the embodiment 62 of FIG. 92 and its modification. FIG. 62 is a cross-sectional view of Example 63 according to the embodiment of the present invention. (Example 63) It is the perspective view, sectional drawing, and top view of Example 64 which concerns on embodiment of this invention. (Example 64) It is the perspective view, sectional drawing, and top view of Example 65 which concerns on embodiment of this invention. (Example 65) FIG. 62 is a perspective view, a sectional view, and a top view of Example 66 according to the embodiment of the present invention. (Example 66) It is the perspective view and sectional view of Example 67 concerning an embodiment of the invention. (Example 67) It is sectional drawing regarding Example 68 which concerns on embodiment of this invention. (Example 68) FIG. 61 is a diagram illustrating a system configuration and an explanatory diagram of use of Example 69 according to the embodiment of the present invention. (Example 69) FIG. 70 is a block diagram of an embodiment 69. It is a perspective view of Example 70 concerning the embodiment of the present invention. (Example 70) It is a block diagram of Example 70. It is the perspective view and sectional drawing of Example 71 which concerns on embodiment of this invention. (Example 71) It is a block diagram of Example 71. FIG. 72 is a block diagram for Example 72 according to the embodiment of the present invention. (Example 72) 72 is a timing chart of power supply control to a charge pump circuit in Embodiment 72. FIG. 73 is a flowchart of the operation of the application processor in the embodiment 72. It is a perspective view about Example 73 concerning an embodiment of the invention. (Example 73) FIG. 71 is a perspective view showing various videophone modes in Embodiment 73. 85 is a flowchart illustrating videophone processing in Embodiment 73. 112 is a flowchart showing the details of step S376 in FIG. 112. FIG. 62 is a block diagram for Example 74 according to an embodiment of the present invention. (Example 74) It is a block diagram regarding Example 75 concerning the embodiment of the present invention. (Example 75) FIG. 73 is a block diagram for Example 76 according to the embodiment of the present invention. (Example 76) FIG. 74 is a block diagram for Example 77 according to the embodiment of the present invention. (Example 77) It is a front and side sectional view about Example 78 concerning an embodiment of the invention. (Example 78) It is front and side sectional drawing about Example 79 which concerns on embodiment of this invention. (Example 79) It is front and side sectional drawing about Example 80 which concerns on embodiment of this invention. (Example 80) It is Example 81 which concerns on embodiment of this invention, and sectional drawing of the side surface regarding the 1st modification and the 2nd modification. (Example 81) It is a block diagram regarding Example 82 concerning an embodiment of the invention. (Example 82) FIG. 123 is a flowchart of the application processor in the embodiment 82 of FIG. 122. It is a perspective view regarding Example 83 concerning an embodiment of the invention. (Example 83) FIG. 124 is a perspective view showing a modification of the embodiment 83 of FIG. 124. It is the perspective view and sectional drawing regarding Example 84 which concerns on embodiment of this invention. (Example 84) FIG. 126 is a block diagram of Example 84 of FIG. 126. FIG. 126 is a cross-sectional view of a modification example of the embodiment 84 of FIG. 126. FIG. 128 is a block diagram of a modification of the example 84 in FIG. 128. It is the perspective view and sectional drawing regarding Example 85 and its modification which concern on embodiment of this invention. (Example 85) FIG. 86 is a block diagram for an embodiment 86 of the present invention. (Example 86) FIG. 131 is a graph graphically illustrating frequency characteristics of a piezoelectric bimorph element, an ear cartilage, and a drive output to the piezoelectric bimorph element according to Example 86 in FIG. 131. 131 is a flowchart of the control unit in Example 86 of FIG. 131. FIG. 131 is a perspective view showing a modification of the embodiment 86 of FIG. 131. FIG. 85 is a block diagram for an embodiment 87 of the present invention. (Example 87) It is the perspective view and sectional drawing regarding Example 88 of this invention. (Example 88) FIG. 136 is a side view illustrating the call situation in Example 88 in FIG. 136. FIG. 138 is a cross-sectional view showing a modification of Example 88 of FIG. 136. It is a system configuration | structure figure of Example 89 of this invention. (Example 89) It is a system configuration | structure figure of Example 90 of this invention. (Example 90) It is sectional drawing and block diagram regarding Example 91 of the present invention. (Example 91) It is a system configuration | structure figure of Example 92 of this invention. (Example 92) FIG. 72 is a side view of an ear showing a modification of the embodiment 92. It is a rear view and block diagram of Embodiment 93 of the present invention. (Example 93) It is the back sectional view and block diagram of Example 94 of the present invention. (Example 94) It is a block diagram of Example 95 of the present invention. (Example 95) It is the perspective view and sectional drawing of Example 96 of this invention. (Example 96) FIG. 149 is a block diagram of a mobile phone portion of the embodiment 96 of FIG. 147. 148 is a flowchart illustrating functions of a control unit of the embodiment 96 in FIG. 148. FIG. 72 is a front perspective view of Embodiment 97 of the present invention. (Example 97) 150 is a flowchart illustrating the control unit function of the embodiment 97 in FIG. 150. It is a flowchart which shows the detail of step S554 and step S560 of FIG. 151. It is sectional drawing and block diagram regarding Example 98 of this invention. (Example 98) 39 is a table showing measured values of Example 98. FIG. 115 is a circuit diagram showing details of a combinational circuit of a booster circuit unit and an analog output amplifier unit which can be used in the embodiments 74 and 75 shown in FIGS. 114 and 115. It is a system configuration | structure figure of Example 99 of this invention. (Example 99) FIG. 157 is a side view of the ear hook portion in various modifications of the embodiment 99 in FIG. 156. It is the perspective view and sectional view of Example 100 of the present invention. (Example 100) FIG. 157 is a schematic cross-sectional view and a circuit diagram illustrating details of a structure of a piezoelectric bimorph of Example 100 illustrated in FIG. 158. FIG. 158 is a cross-sectional view illustrating a configuration for mass-producing the piezoelectric bimorph module in Example 100 in FIG. 158. It is a block diagram regarding Example 101 of the present invention. (Example 101) FIG. 163 is a block diagram of a first modification of the embodiment 101 shown in FIG. 161. FIG. 163 is a block diagram of a second modification of the embodiment 101 shown in FIG. 161. 161 is a partially omitted detailed circuit diagram when the features of the embodiment 101 in FIG. 161 are applied to the circuit in FIG. 155. It is a block diagram regarding Example 102 of the present invention. (Example 102) 33 is a flowchart illustrating an application processor function according to the embodiment 102. 27 is a graph illustrating the frequency characteristic of Example 102 in an image. It is the perspective view and sectional view concerning Example 103 of the present invention. (Example 103) FIG. 168 is an enlarged sectional view of a main part of Example 103 shown in FIG. 168 (D). It is the perspective view and sectional view regarding Example 104 of the present invention. (Example 104) It is a block diagram regarding Example 105 of the present invention. (Example 105) FIG. 172 is an extended system block diagram of the embodiment 105 in FIG. 171. 178 is a flowchart of the control unit of the mobile phone in the embodiment 105 in FIG. 171. 173 is a flowchart of the control unit of the headset in Embodiment 105 in FIG. 171. FIG. 108 is a block diagram for Embodiment 106 of the present invention. (Example 106) FIG. 177 is a schematic diagram for explaining an image of automatic adjustment of the directionality and sharpness of directivity of the microphone in the embodiment 106 in FIG. 175. 175 is a flowchart of the control unit of the mobile phone in the embodiment 106 in FIG. 175. (Known up to here) It is the perspective view and sectional view regarding Example 107 of the present invention. (Example 107) It is a graph of "Fletcher and Manson equal loudness curve". 87 is a flowchart of the application processor in the embodiment 107 in FIG. 178 employing FIG. 87. It is sectional drawing regarding Example 108 of this invention and its modification. (Example 108) It is a schematic diagram of Example 109 of this invention. (Example 109) It is a schematic diagram of Example 110 of the present invention. (Example 110) It is a mimetic diagram of Example 111 of the present invention. (Example 111) It is a mimetic diagram of Example 112 of the present invention. (Example 112) It is a schematic diagram of Example 113 of this invention. (Example 113) It is a schematic diagram of Example 114 of the present invention. (Example 114) It is a schematic diagram of Example 115 of this invention. (Example 115) It is a schematic diagram of Example 116 of this invention. (Example 116) It is a schematic diagram of Example 117 of this invention. (Example 117) FIG. 190 is a conceptual perspective view of Example 117 in FIG. 190. It is a cross section of Example 118 of the present invention. (Example 118) It is the schematic diagram and block diagram of Example 119 of this invention. (Example 119) It is a mimetic diagram of Example 120 of the present invention. (Example 120) It is a schematic diagram of Example 121 of this invention. (Example 121) It is a schematic diagram of Example 122 of this invention. (Example 122) It is a schematic diagram of Example 123 of this invention. (Example 123) It is sectional drawing of Example 124 of this invention. (Example 124) FIG. 192 is an enlarged cross-sectional view and a block diagram of main parts of an embodiment 124 in FIG. 198. 197 is a flowchart of the control unit of the embodiment 124 in FIG. 199. It is the principal part expanded sectional view and block diagram of Example 125 of this invention. (Example 125) It is the principal part enlarged sectional view and block diagram of Example 126 of this invention. (Example 126) It is the principal part enlarged sectional view and block diagram of Example 127 of this invention. (Example 127) It is a system configuration | structure figure of Example 128 of this invention. (Example 128) FIG. 205 is a system block diagram of Example 128 shown in FIG. 204. 129 is a flowchart illustrating functions of a mobile phone according to Embodiment 128. It is a system configuration | structure figure of Example 129 of this invention. (Example 129) It is a mimetic diagram of Example 130 of the present invention. (Example 130) It is a schematic diagram of Example 131 of this invention. (Example 131) It is a schematic diagram of Example 132 of the present invention. (Example 132) It is a schematic diagram of Example 133 of the present invention. (Example 133) FIG. 146 is a system configuration diagram of an embodiment 134 of the present invention. (Example 134) FIG. 131 is an explanatory diagram of a talking attitude of the embodiment 134 in FIG. 212. FIG. 131 is an explanatory diagram of another calling attitude of FIG. 212 and the embodiment 134. FIG. 130 is a system block diagram of an embodiment 134. 130 is a flowchart illustrating functions of a wristwatch type transmission / reception device according to the embodiment 134. It is a system configuration | structure figure of Example 135 of this invention. (Example 135) FIG. 24 is an enlarged front view of the ID name tag type transmission / reception device of the embodiment 135. FIG. 32 is an enlarged front view of the ID name tag type transmission / reception device in a different display state of the embodiment 135. FIG. 35 is a system block diagram of an embodiment 135. 30 is a flowchart of the ID business card type transmission / reception device control unit in the embodiment 135. It is the perspective view and sectional view of Example 136 of the present invention. (Example 136) It is sectional drawing regarding Example 137 of this invention, and its modification. (Example 137) It is the perspective view and sectional view of Example 138 of the present invention. (Example 138) It is the perspective view and sectional drawing of Example 139 of this invention. (Example 139) It is the perspective view and sectional view of Example 140 of the present invention. (Example 140) It is the perspective view and sectional view of Example 141 of the present invention. (Example 141) It is the perspective view and sectional drawing of Example 142 of this invention. (Example 142) It is the perspective view and sectional view of Example 143 of the present invention. (Example 143) It is a schematic diagram of Example 144 of the present invention. (Example 144) It is the perspective view, sectional drawing, top view, and side view of Example 145 of this invention. (Example 145) It is the perspective view and top view of Example 146 of this invention. (Example 146) It is a block diagram of Example 147 of the present invention. (Example 147) 243 is a flowchart of an application processor in the embodiment 147 of FIG. 233. It is the perspective view and top view of Example 148 of this invention. (Example 148) FIG. 19 is a perspective view, a sectional view, a top view, and a side view of an embodiment 149 of the present invention. (Example 149) FIG. 241 is a schematic diagram of the side surface of the ear and the top surface of the head in the usage state of the example 149 in FIG. FIG. 237 is a perspective view of a mobile phone illustrating an example of a description of how to use the mobile phone in the embodiment 149 illustrated in FIG. 237. It is a perspective view, a sectional view, and a top view concerning Example 150 of the present invention. (Example 150) It is a block diagram regarding Example 151 of the present invention. (Example 151) FIG. 241 is a flowchart of the operation of the application processor 57039 in the embodiment 151 of FIG. 240. It is the perspective view and sectional view regarding Example 152 of the present invention. (Example 152) It is the perspective view and sectional view regarding Example 153 of the present invention. (Example 153) It is the perspective view and sectional drawing regarding Example 154 of this invention. (Example 154) It is the perspective view and sectional drawing regarding Example 155 of this invention. (Example 155) FIG. 245 is an enlarged detailed sectional view of a main part of FIG. 245 (C) relating to Example 155; FIG. 21 is a perspective view and a cross-sectional view of an embodiment 156 of the present invention. (Example 156) It is the perspective view and sectional view regarding Example 157 of the present invention. (Example 157) It is the perspective view and sectional drawing regarding Example 158 of this invention. (Example 158) It is the perspective view and sectional view regarding Example 159 of the present invention. (Example 159) FIG. 17 is a front view of an embodiment 160 of the present invention. (Example 160) FIG. 252 is an overall block diagram of an embodiment 160 in FIG. 251. It is a front view of Example 161 of this invention. (Example 161) FIG. 252 is an overall block diagram of an example 161 in FIG. 253. It is a system block diagram of Example 162 of the present invention. (Example 162) FIG. 258 is a front view of a modification of the embodiment 160 to the embodiment 162 in FIGS. 251 to 255.

  FIG. 1 is a perspective view showing Example 1 of the mobile phone according to the embodiment of the present invention. In FIG. 1, the mobile phone 1 includes an upper portion 7 having a display portion 5 and the like, and a lower portion 11 having an operating portion 9 such as a numeric keypad and a transmitting portion 23 such as a microphone for listening to a sound produced from the mouth of the operator. , The upper part 7 is configured to be foldable on the lower part 11 by the hinge part 3. The upper part 7 is provided with a receiver 13 such as an earphone for transmitting sound to the operator's ear, and constitutes a telephone function part together with the transmitter 23 in the lower part 11. In addition, the upper part 7 can capture an operator's face looking at the display unit 5 when the mobile phone 1 is used as a video phone, and can also be used when taking a self-portrait. 17 are arranged. Further, on the upper part 7, a pair of infrared light emitting portions 19 and 20 constituting a proximity sensor for detecting that the mobile phone 1 is in contact with the ear for a call and infrared reflected light from the ear Is provided. Although not shown in FIG. 1, a rear camera is provided on the rear of the upper part 7, and can photograph an object monitored on the display unit 5 on the rear of the mobile phone 1.

  The upper part 7 is further provided with a cartilage conduction vibrating part 24 for the right ear and a cartilage conduction vibrating part 26 for the left ear made of a piezoelectric bimorph element or the like for contacting the tragus at an upper corner on the inner side (the side facing the ear). ing. The cartilage conduction vibrating part 24 for the right ear and the cartilage conduction vibrating part 26 for the left ear protrude from the outer wall of the mobile phone so as not to harm the design. However, by being provided at the corner of the outer wall of the mobile phone, it is effective. Contact the tragus. Thus, in addition to the voice reception from the reception unit 13, the reception can be performed by bone conduction from the cartilage of the tragus. As disclosed in Patent Literature 2, the tragus provides the largest audible feeling among the otochondral structures such as the otomaryoid process, the posterior cartilage surface of the external ear opening, the tragus and the raised portion, and is pressed. It is known that the rise of the bass when the pressure is increased is greater than at other positions. This finding is described in detail in Patent Document 2, which can be referred to.

  When the mobile phone 1 is put on the right ear, the mobile phone 1 rotates slightly clockwise in FIG. By providing the cartilage conduction vibrating portion 24 for the right ear at the inclined lower corner at the upper end of the mobile phone ear side, the cartilage conduction vibrating portion 24 for the right ear can be naturally spontaneously protruded from the outer wall of the mobile phone. It can make contact with the tragus of the right ear. This state is a posture close to a normal call state, and there is no sense of incongruity for the caller himself or his eyes. Since the earpiece 13 is located near the cartilage conduction vibrating part 24 for the right ear, both audio information via the tragus cartilage and audio information via the external auditory canal are transmitted to the ear. At this time, since the same audio information is transmitted by different sounding bodies and paths, the phase between the two is adjusted so that they do not cancel each other.

  On the other hand, when the mobile phone 1 is brought into contact with the left ear, the mobile phone 1 is slightly rotated counterclockwise in FIG. Then, in the same manner as in the case of the right ear, the cartilage conduction vibrating portion for the left ear 26 is provided at the inclined lower corner at the upper end of the mobile phone ear side. The tragus of the ear can be contacted. This state is a posture close to a normal call state, and the receiving unit 13 is near the cartilage conduction vibration unit for the left ear 26, and audio information via the tragus cartilage and audio information via the external auditory canal are both transmitted to the ear. Therefore, the phase adjustment between the two is performed in the same manner as in the case of the right ear.

  Since the pair of infrared light emitting units 19 and 20 in the proximity sensor emit light alternately in a time-division manner, the common infrared light proximity sensor 21 emits reflected light due to infrared light from any of the light emitting units. It is possible to discriminate whether the light is being received, and thereby it is possible to determine which of the cartilage conduction vibration unit for the right ear 24 and the cartilage conduction vibration unit for the left ear hits the tragus. With this, it is possible to determine which ear the mobile phone 1 is used in, and it is possible to vibrate the vibrating part with which the tragus is in contact and turn off the other. However, there is a variation in the manner in which the mobile phone 1 is applied to the ears and individual differences in the shape of the ears. Therefore, the first embodiment further incorporates an acceleration sensor as described later, and the gravitational acceleration detected by the acceleration sensor. Thus, it is configured to detect which direction the mobile phone 1 is tilted, and vibrate the vibrating portion at the lower tilt angle to turn off the other. The use of the right ear and the use of the left ear will be described again with reference to the drawings according to each use state.

  The upper part 7 is further provided with means for preventing the transmission of vibrations of the cartilage conduction vibration part 24 for the right ear and the cartilage conduction vibration part 26 for the left ear, which are arranged on the outside (the back side not in contact with the ear) so as to pick up environmental noise. Environmental noise microphone 38 is provided. The environmental noise microphone 38 further picks up a sound produced from the mouth of the operator. The environmental noise picked up by the environmental noise microphone 38 and the voice of the operator himself are inverted in waveform and mixed with the cartilage conduction vibration unit 24 for the right ear and the cartilage conduction vibration unit 26 for the left ear. To cancel the environmental noise and the operator's own voice included in the call, so that the voice information of the other party can be easily heard. Details of this function will be described later.

  FIG. 2 is a side view of the mobile phone 1 showing the functions of the cartilage conduction vibration unit 24 for the right ear and the cartilage conduction vibration unit 26 for the left ear. FIG. The state where the ear 28 is put on is shown. On the other hand, FIG. 2B shows a state in which the mobile phone 1 is held on the left ear 30 with the left hand. 2A is a view from the right side of the face, and FIG. 2B is a view from the left side of the face. Is visible. In addition, in order to illustrate the relationship between the mobile phone 1 and the right ear 28 and the left ear 30, the mobile phone 1 is indicated by a chain line.

  As shown in FIG. 2 (A), when the mobile phone 1 is applied to the right ear 28, the mobile phone 1 is slightly tilted in the counterclockwise direction in FIG. Become. Since the cartilage conduction vibrating portion 24 for the right ear is provided at the lower incline of the upper end of the mobile phone ear side, it can be naturally brought into contact with the tragus 32 of the right ear 28. As described above, this state is a posture close to a normal call state, and there is no sense of incongruity for the caller himself or his eyes. On the other hand, as shown in FIG. 2 (B), when the mobile phone 1 is applied to the left ear 30, the mobile phone 1 is slightly tilted clockwise in FIG. Becomes Further, since the cartilage conduction vibration part 26 for the left ear is provided at the inclined lower corner at the upper end of the ear of the mobile phone, it can be brought into contact with the tragus 34 of the left ear 30 naturally. Also in this state, as in the case of the right ear 28, the posture is close to a normal call state, and the caller himself does not feel uncomfortable.

  FIG. 3 is a block diagram of the first embodiment, and the same portions are denoted by the same reference numerals as in FIG. 1 and the description will be omitted unless necessary. The mobile phone 1 is controlled by a control unit 39 that operates according to a program stored in the storage unit 37. The storage unit 37 can temporarily store data necessary for the control of the control unit 39, and can also store various measurement data and images. The display of the display unit 5 is performed based on the display data held by the display driver 41 under the control of the control unit 39. The display unit 5 has a display backlight 43, and the control unit 39 adjusts the brightness based on the surrounding brightness.

  The telephone function unit 45 including the reception unit 13 and the transmission unit 23 can be connected to a wireless telephone line by a telephone communication unit 47 under the control of the control unit 39. The speaker 51 performs ringtones and various kinds of guidance under the control of the control unit 39, and outputs the voice of the other party during a videophone call. The audio output of the speaker 51 is not output from the cartilage conduction vibration unit 24 for the right ear and the cartilage conduction vibration unit 26 for the left ear. This is because, during a videophone call, there is no possibility that the cartilage conduction vibrator is applied to the ear. Further, the image processing unit 53 processes images captured by the videophone inner camera 17 and the rear main camera 55 under the control of the control unit 39, and inputs an image of a result of the processing to the storage unit 37.

  As described above, the pair of infrared light emitting units 19 and 20 in the proximity sensor emit light alternately in a time sharing manner under the control of the control unit 39. Therefore, the infrared reflected light input to the control unit 39 by the common infrared light proximity sensor 21 can be identified by the reflected light from any of the light emitting units. When the reflected light is detected from both of the infrared light emitting units 19 and 20, the control unit 39 compares the reflected light with each other, and determines which of the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26. Determine if it is hitting the tragus. Further, the acceleration sensor 49 detects the direction of the detected gravitational acceleration. Based on this detection signal, the control unit 39 determines whether the mobile phone 1 is tilted in the state shown in FIG. 2A or FIG. 2B, and as described with reference to FIG. One vibrating part is vibrated and the other is turned off.

  The mobile phone 1 further has a phase adjustment mixer unit 36 for adjusting the phase of the audio information from the control unit 39 and transmitting the audio information to the cartilage conduction vibration unit 24 for the right ear and the cartilage conduction vibration unit 26 for the left ear. More specifically, the phase adjustment mixer unit 36 generates the audio information generated from the receiving unit 13 and transmitted from the external auditory meatus via the eardrum and the cartilage conduction vibration unit 24 for the right ear or the cartilage conduction vibration unit 26 for the left ear. To adjust the phase of the audio information from the control unit 39 based on the audio information transmitted from the control unit 39 to the receiving unit 13 so that the same audio information transmitted via the tragus cartilage does not cancel each other, The vibration is transmitted to the cartilage conduction vibration unit 24 for the right ear and the cartilage conduction vibration unit 26 for the left ear. Since this phase adjustment is a relative adjustment between the receiving unit 13 and the cartilage conduction vibration unit 24 for the right ear and the cartilage conduction vibration unit 26 for the left ear, the control unit 39 sends the cartilage conduction vibration unit 24 for the right ear and the left The phase of the audio information transmitted from the control unit 39 to the receiver 13 may be adjusted based on the audio information transmitted to the otic cartilage conduction vibration unit 26. In this case, the voice information to the speaker 51 is also adjusted in phase with the voice information to the receiver 13.

  Note that the phase adjustment mixer unit 36 does not cancel out the voice information from the receiving unit 13 and the same voice information from the cartilage conduction vibration unit 24 for the right ear or the cartilage conduction vibration unit 26 for the left ear as described above. And a second function in cooperation with the environmental noise microphone 38. In this second function, the environmental noise picked up by the environmental noise microphone 38 and the voice of the operator himself are inverted in waveform by the phase adjustment mixer unit 36, and then the cartilage conduction vibration unit 24 for the right ear or the cartilage conduction vibration unit for the left ear. The sound information is mixed with the sound information of the receiver 26, thereby canceling the environmental noise and the voice of the operator included in the sound information via the receiver 13 to make it easier to hear the sound information of the other party. At this time, regardless of the difference in the transmission route of the voice information from the receiving unit 13 and the voice information from the cartilage conduction vibration unit 24 for the right ear or the cartilage conduction vibration unit 26 for the left ear, the environmental noise and the voice of the operator himself In order to effectively cancel out, mixing is performed in consideration of the phase adjustment based on the first function.

  FIG. 4 is a flowchart of the operation of the control unit 39 in the first embodiment of FIG. In order to mainly explain the functions of the cartilage conduction vibration unit 24 for the right ear and the cartilage conduction vibration unit 26 for the left ear, the flow of FIG. There are also operations of the control unit 39 not shown in the flow of FIG. 4, such as functions of a typical mobile phone. The flow of FIG. 4 starts when the main power supply is turned on by the operation unit 9 of the mobile phone 1, and performs an initial startup and a function check of each unit in step S <b> 2 and starts a screen display on the display unit 5. Next, in step S4, the functions of the cartilage conduction vibration unit for the right ear 24 and the cartilage conduction vibration unit 26 for the left ear are turned off, and the process proceeds to step S6. In step S6, it is checked whether there is any operation that does not use radio waves, such as a mail operation, an Internet operation, other settings, and a game that has already been downloaded (hereinafter, collectively referred to as a "non-call operation"). If any of these operations are performed, the process proceeds to step S8 to execute a non-call process, and then proceeds to step S10. In the non-call operation, the function of performing the functions of the receiver 13, the cartilage conduction vibration unit 24 for the right ear, and the cartilage conduction vibration unit 26 for the left ear on the upper part 7 of the mobile phone 1 is not assumed. On the other hand, when the non-call operation is not detected in step S6, the process directly proceeds to step S10.

  In step S10, it is checked whether or not a call using portable radio waves is being received. If the call has not been received, the process proceeds to step S12, and it is checked whether or not the other party has responded to the call from the mobile phone 1. When a response is detected, the process proceeds to step S14. On the other hand, when it is detected in step S10 that a call by a portable radio wave is being received, the process proceeds to step S16, and whether or not the mobile phone 1 is open, that is, the upper part 7 is folded over the lower part 11 is folded. It is checked whether the state has been opened as shown in FIG. If it is not detected that the mobile phone 1 is open, the process returns to step S10, and thereafter, steps S10 and S16 are repeated to wait for the mobile phone 1 to be opened. If the incoming call ends without repeating the mobile phone 1, the flow moves from step S10 to step S12. On the other hand, if it is detected in step S16 that the mobile phone 1 is open, the process proceeds to step S14. In step S14, the transmitter 23 and the receiver 13 are turned on, and the process proceeds to step S18. In step S18, it is checked whether or not the call is a videophone call. If the call is not a videophone call, the process proceeds to step S20. At this point, it is checked whether or not the call is disconnected. If not, the process proceeds to step S22.

  In step S22, it is checked whether or not the infrared light proximity sensor 21 detects the contact of the ear. If the contact is detected, the process proceeds to step S24. On the other hand, when the infrared light proximity sensor 21 does not detect the abutment of the ear in step S22, the process returns to step S14, and thereafter, step S14 and steps S18 to S22 are repeated to wait for detection of the proximity sensor in step S22. In step S24, based on the detection signal of the acceleration sensor 49, it is checked whether or not the inclination of the right ear communication state as shown in FIG. If so, the process proceeds to step S26, where the right ear cartilage conduction vibration unit 24 is turned on, and the process proceeds to step S28. On the other hand, if it is not detected in step S24 that the inclination of the right ear communication state has occurred, the detection signal of the acceleration sensor 49 must detect the left ear communication state inclination as shown in FIG. In step S30, the cartilage conduction vibration unit for the left ear 26 is turned on, and the process proceeds to step S28.

  In the description of the flow of FIG. 4 described above, the process proceeds to step S24 irrespective of whether the infrared reflected light detected by the infrared light proximity sensor 21 is generated by the infrared light emitting unit 19 or 20. In step S24, the acceleration sensor It has been described that the signal 49 is used to detect whether or not the right ear communication state is inclined. However, since the infrared light proximity sensor 21 can also detect whether or not the right ear communication state is inclined, the signal of the acceleration sensor 49 is replaced with the infrared light at the light emission timing of the infrared light emitting unit 19 in step S24. If the output of the proximity sensor 21 is larger than that at the light emission timing of the infrared light emitting unit 20, it may be determined that the right ear communication state is inclined. In step S24, the signal of the acceleration sensor 49 and the output comparison result of the infrared light proximity sensor 21 at the light emission timing of the infrared light emitting units 19 and 20 are combined to determine whether or not the right ear communication state is inclined. It may be configured to make a determination.

  In step S28, it is checked whether or not the call state has been disconnected. If the call has not been disconnected, the process returns to step S24, and steps S24 to S30 are repeated until the disconnection is detected in step S28. This corresponds to switching of the mobile phone 1 between the right ear communication state and the left ear communication state during a call. On the other hand, when the disconnection of the call is detected in step S28, the process proceeds to step S32, in which the cartilage conduction vibration unit 24 for the right ear or the cartilage conduction vibration unit 26 for the left ear, the reception unit 13, and the transmission unit 23 in the ON state are turned off. Then, control goes to a step S34. On the other hand, if no call response is detected in step S12, the process immediately proceeds to step S34. If it is detected in step S18 that the call is a videophone call, the flow shifts to videophone processing in step S36. In the videophone processing, the image of the user's face is captured by the videophone inner camera 17, the voice of the other party is output by the speaker 51, the sensitivity of the transmitting section 23 is switched, and the face of the other party is displayed on the display section 5. When the videophone process is completed, the process proceeds to step S38, where the speaker 51, the receiver 13 and the transmitter 23 are turned off, and the process proceeds to step S34. Also, when the disconnection of the telephone call is detected in step S20, the process proceeds to step S38, but since the speaker 51 is not originally turned on, the receiver 13 and the transmitter 23 are turned off, and the process proceeds to step S34.

  In step S34, the presence or absence of a main power off operation is checked, and if there is an off operation, the flow ends. On the other hand, when the main power-off operation is not detected in step S34, the flow returns to step S6, and thereafter, steps S6 to S38 are repeated. As described above, the cartilage conduction vibrating portion 24 for the right ear or the cartilage conduction vibrating portion 26 for the left ear can be used even when the mobile phone 1 is not open, when the mobile phone 1 is not in a call state, or in a call state. It does not turn on during a videophone call or when the mobile phone 1 is not in contact with the ear even in a normal call state. However, once the cartilage conduction vibration unit 24 for the right ear or the cartilage conduction vibration unit 26 for the left ear is turned on, the on / off switching between the cartilage conduction vibration unit 24 for the right ear or the cartilage conduction vibration unit 26 for the left ear is performed. With the exception of, this will not be turned off unless a call disconnection is detected.

  FIG. 5 is a perspective view showing Example 2 of the mobile phone according to the embodiment of the present invention. Since the structure of the second embodiment also has many points in common, the corresponding parts are denoted by the same reference numerals as in the first embodiment, and description thereof will be omitted. The mobile phone 101 according to the second embodiment is an integral type having no movable parts, not a folding method separated into an upper part and a lower part. Therefore, in this case, “upper” does not mean a separated upper part, but means an upper part of the integrated structure.

  In the first embodiment, when the mobile phone 1 is folded, the cartilage conduction vibration unit 24 for the right ear and the cartilage conduction vibration unit 26 for the left ear are sandwiched between the upper part 7 and the lower part 11 and stored. On the other hand, in the second embodiment, the cartilage conduction vibration part 24 for the right ear and the cartilage conduction vibration part 26 for the left ear are always exposed on the outer wall of the mobile phone 101. Also in the second embodiment, the internal structure of FIG. 3 and the flowchart of FIG. 4 can be basically used. However, step S16 in the flowchart of FIG. 4 is omitted due to the above difference in structure, and when it is confirmed in step S10 that the incoming call is being received, the process directly proceeds to step S14.

  FIG. 6 is a perspective view showing Example 3 of the mobile phone according to the embodiment of the present invention. Since the structure of the third embodiment also has many points in common, the corresponding parts are denoted by the same reference numerals as in the first embodiment, and description thereof will be omitted. The mobile phone 201 according to the third embodiment has a structure in which the upper part 107 can slide with respect to the lower part 111. In the structure of the third embodiment, when the upper part 107 is overlapped with the lower part 111, the upper and lower relations are lost. I do.

  In the third embodiment, the full function can be used in a state where the operation unit 9 is exposed by extending the upper part 107 as shown in FIG. 6, and the operation unit 9 is hidden by overlapping the upper part 107 with the lower part 111. However, basic functions such as answering and calling can be used. Also in the third embodiment, the cartilage conduction vibrating portion 24 for the right ear and the cartilage conduction vibrating portion 26 for the left ear are provided in both the state where the mobile phone 201 is extended as shown in FIG. The mobile phone 201 is always exposed on the outer wall. Also in the third embodiment, the internal structure of FIG. 3 and the flowchart of FIG. 4 can be basically used. However, as described above, in the third embodiment, a call can be made even when the upper part 107 is overlaid on the lower part 111. Therefore, as in the second embodiment, step S16 in the flowchart of FIG. When it is confirmed that the call is being received, the process directly proceeds to step S14.

  The implementation of the various features of the present invention is not limited to the above-described embodiment, but can be implemented in other embodiments. For example, in the above embodiment, the right-ear cartilage conduction vibrating part 24 and the left-ear cartilage conduction vibrating part 26 are provided in order to cope with both the right ear use and the left ear use due to a change of holding or a change of user. However, in the case of cartilage conduction, if only the right ear or only the left ear is used, a single cartilage conduction vibrator may be provided.

  Further, the cartilage conduction vibrating portion 24 for the right ear and the cartilage conduction vibrating portion 26 for the left ear are originally provided on the assumption that they are in contact with the tragus of the right ear and the left ear, respectively. As described above, cartilage conduction is possible even in an otocartilage configuration other than the tragus, such as the otolarynx or the posterior cartilage surface of the outer ear opening, so that both the cartilage conduction vibrating part 24 for the right ear and the cartilage conduction vibrating part 26 for the left ear are provided. For example, when using the right ear, an appropriate portion of the cartilage of the right ear may be simultaneously pressed and used. In this sense, the two cartilage conduction vibration units 24 and 26 are not necessarily limited to the right ear and the left ear. In this case, instead of turning on only one of the two cartilage conduction vibrating portions 24 and 26 as in the embodiment, both are turned on at the same time.

  Further, in the above-described embodiment, the receiving unit 13 and the cartilage conduction vibration unit 24 for the right ear or the cartilage conduction vibration unit 26 for the left ear are simultaneously turned on. When the cartilage conduction vibration unit 26 is turned on, the receiving unit 13 may be turned off. In this case, the phase adjustment of the audio information becomes unnecessary.

  FIG. 7 is a perspective view showing Example 4 of the mobile phone according to the embodiment of the present invention. Also in the fourth embodiment, the structure has many points in common. Therefore, corresponding portions are denoted by the same reference numerals as in the first embodiment, and description thereof will be omitted. The mobile phone 301 according to the fourth embodiment is an integrated type having no movable parts, instead of a folded manner separated into an upper part and a lower part as in the second embodiment. In addition, it is configured as a so-called smartphone having a large screen display unit 205 having a GUI (graphical user interface) function. Also in the fourth embodiment, “upper” does not mean a separated upper part, but means an upper part of an integrated structure. In the fourth embodiment, an operation unit 209 such as a numeric keypad is displayed on the large screen display unit 205, and a GUI operation is performed according to a touch or slide of a finger on the large screen display unit 205.

  The cartilage conduction vibration function in the fourth embodiment is performed by a cartilage conduction vibration unit having a cartilage conduction vibration source 225 composed of a piezoelectric bimorph element or the like and a vibration conductor 227. The cartilage conduction vibration source 225 is arranged in contact with the lower part of the vibration conductor 227 and transmits the vibration to the vibration conductor 227. The cartilage conduction vibration source 225 is configured to protrude from the outer wall of the mobile phone (the front in FIG. 7) in the same manner as in the first to third embodiments so as not to harm the design. To vibrate both ends 224 and 226 thereof. Since both ends 224 and 226 of the vibration conductor 227 are located at the inner corners of the upper part 7 of the mobile phone 301 in contact with the tragus, the ears can be effectively prevented without protruding from the outer wall of the mobile phone as in the first to third embodiments. Touches the bead. As described above, the right end 224 and the left end 226 of the vibration conductor 227 constitute the cartilage conduction vibration unit 24 for the right ear and the cartilage conduction vibration unit 26 for the left ear, respectively, according to the first embodiment. Since the vibration conductor 227 does not vibrate only at the right end 224 and the left end 226 but vibrates as a whole, in the fourth embodiment, even if the inner upper end side of the mobile phone 301 is brought into contact with the ear cartilage. Audio information can be transmitted. With such a configuration of the cartilage conduction vibration unit, the vibration of the cartilage conduction vibration source 225 can be guided to a desired position by the vibration conductor 227, and it is not necessary to arrange the cartilage conduction vibration source 225 itself on the outer wall of the mobile phone 301. This increases the degree of freedom in layout and is useful for mounting the cartilage conduction vibration unit on a mobile phone that does not have much space.

  In the fourth embodiment, two more functions are added. However, these functions are not unique to the fourth embodiment, and can be applied to the first to third embodiments. One of the additional functions is to prevent a malfunction of the cartilage conduction vibration part. In each of the first to fourth embodiments, the infrared light emitting units 19 and 20 and the infrared light proximity sensor 21 detect that the mobile phone is put on the ear. When the mobile phone 1 is placed on a desk or the like with the inside down, there is a detection by the proximity sensor, so that the mobile phone 1 may be erroneously recognized as having been put on the ear, and the process may proceed from S22 of the flow of FIG. 4 to step S24. Since it does not correspond to the right ear communication state inclination detected in step S24, the flow proceeds to step S30, and the left ear cartilage conduction vibration unit 26 may be turned on by mistake. Since the cartilage conduction vibration part has relatively large vibration energy, such a malfunction may cause vibration noise between the cartilage conduction vibration part and the desk. In the fourth embodiment, in order to prevent this, the horizontal stationary state is detected by the acceleration sensor 49, and if applicable, the vibration of the cartilage conduction vibration source 225 is prohibited. Details of this point will be described later.

  Next, a second additional function in the fourth embodiment will be described. In each embodiment of the present invention, the cartilage conduction vibrating part 24 for the right ear or the cartilage conduction vibrating part 26 for the left ear (the right end 224 or the left end 226 of the vibration conductor 227 in the fourth embodiment) is connected to the right or left ear. Sound information is transmitted by bringing the tragus into contact with the tragus of the ear, but by increasing the contact pressure and closing the ear hole with the tragus, an embolic conduction effect occurs, and the sound information can be transmitted with a loud sound. Furthermore, since environmental noise is blocked by closing the ear canal with tragus, use in such a state realizes a two-way reception situation that reduces unnecessary environmental noise and increases necessary voice information. It is suitable for calls under noise. When the ear plug bone conduction effect occurs, the user's own voice due to bone conduction from the vocal cords increases, and a sense of incongruity is generated in which the right and left auditory sense balance is lost. In the fourth embodiment, in order to alleviate the sense of discomfort of one's own voice during the occurrence of such an ear plug bone conduction effect, the phase of the information of one's own voice picked up from the transmitter 23 is inverted so that the cartilage conduction vibration source 225 transmits the information. Communicate and cancel your voice. Details of this point will be described later.

  FIG. 8 is a block diagram of the fourth embodiment, and the same portions are denoted by the same reference numerals as in FIG. Also, since many parts are common to the first to third embodiments, corresponding parts are denoted by the same reference numerals as those parts. The description of these same or common parts will be omitted unless particularly necessary. In the fourth embodiment, the telephone function unit 45 is illustrated in some detail, but the configuration is common to the first to third embodiments. Specifically, the reception processing section 212 and the earphone 213 in FIG. 8 correspond to the reception section 13 in FIG. 3, and the transmission processing section 222 and the microphone 223 in FIG. 8 correspond to the transmission section 23 in FIG. On the other hand, the cartilage conduction vibration source 225 and the vibration conductor 227 of FIG. 7 are collectively shown as a cartilage conduction vibration unit 228 in FIG. The transmission processing unit 222 transmits a part of the voice of the operator picked up from the microphone 223 to the reception processing unit 212 as a side tone, and the reception processing unit 212 converts the voice of the communication partner from the telephone communication unit 47 into the operator's own voice. Is superimposed and output to the earphone 213, so that the balance between bone conduction and air conduction of one's voice while the mobile phone 301 is in contact with the ear is close to a natural state.

  The transmission processing unit 222 further outputs a part of the operator's voice picked up from the microphone 223 to the sound quality adjustment unit 238. The sound quality adjustment unit 238 outputs the sound quality of the own voice to be transmitted from the cartilage conduction vibration unit 228 to the cochlea to the sound quality similar to the operator's own voice transmitted to the cochlea by the internal conduction from the vocal cords when the ear plug bone conduction effect occurs. Adjust to make both cancellations effective. Then, the waveform inverting section 240 inverts the waveform of the voice whose sound quality has been adjusted in this way and outputs the inverted voice to the phase adjusting mixer section 236. When the pressure detected by the pressure sensor 242 is equal to or more than a predetermined value and the earphone is closed with the tragus by the mobile phone 301, the phase adjustment mixer unit 236 outputs the waveform inversion unit 240 according to an instruction from the control unit 239. Are mixed to drive the cartilage conduction vibration unit 228. As a result, an excessive voice of the user during the generation of the ear plug bone conduction effect is canceled, and the sense of discomfort is alleviated. At this time, the degree of cancellation is adjusted so that one's own voice equivalent to the side tone is left without being canceled. On the other hand, when the pressure detected by the pressure sensor 242 is lower than a predetermined value, this corresponds to a state in which the ear hole is not closed by the tragus and the ear plug bone conduction effect does not occur. Based on the instruction of 239, mixing of the self-voice waveform inversion output from the waveform inversion unit 240 is not performed. In FIG. 8, the positions of the sound quality adjustment unit 238 and the waveform inversion unit 240 may be reversed. Further, the sound quality adjustment unit 238 and the waveform inversion unit 240 may be integrated as a function in the phase adjustment mixer unit 236.

  FIG. 9 is a conceptual block diagram of a main part showing a state in which the mobile phone 301 is applied to the right tragus in the fourth embodiment. is there. FIG. 9 also shows a specific embodiment of the pressure sensor 242, which is configured on the assumption that the cartilage conduction vibration unit 225 is a piezoelectric bimorph element. The same parts as those in FIGS. 7 and 8 are denoted by the same reference numerals, and description thereof will be omitted unless necessary.

  FIG. 9A shows a state in which the mobile phone 301 is applied to the tragus 32 to such an extent that the tragus 32 does not block the ear hole 232. In this state, the phase adjustment mixer unit 236 drives the cartilage conduction vibration unit 225 based on the voice information of the call partner from the reception processing unit 212. The pressure sensor 242 monitors a signal appearing on a signal line connecting the phase adjustment mixer unit 236 and the cartilage conduction vibration unit 225, and a cartilage conduction vibration unit (piezoelectric bimorph element) applied in response to a pressure on the vibration conductor 227. 225 is configured to detect a signal change based on the distortion to 225. As described above, when the cartilage conduction vibration unit 225 that transmits audio information by contacting the tragus 32 is configured by a piezoelectric bimorph element, the piezoelectric bimorph element itself can be used as a pressure sensor for detecting pressure on the tragus 32. It can be shared. The pressure sensor 242 further monitors a signal appearing on a signal line connecting the phase adjustment mixer unit 236 and the reception processing unit 212. Since the signal appearing here is not affected by the pressure on the tragus 32, it can be used as a reference signal for pressure determination.

  As described above, in FIG. 9A, the tragus 32 does not block the ear hole 232, and the pressure determined by the pressure sensor 242 is small. Is instructed not to mix the waveform inverted self-voice into the cartilage conduction vibration unit 225. On the other hand, FIG. 9B shows a state where the mobile phone 301 pushes the tragus 32 more strongly in the direction of the arrow 302, and the tragus 32 closes the ear hole 232. Then, in this state, an ear plug bone conduction effect occurs. The pressure sensor 242 determines that the ear hole 232 has been closed based on the detection of an increase in pressure that is equal to or greater than a predetermined value. It instructs the phase adjustment mixer unit 236 to perform mixing to the unit 225. As described above, the sense of incongruity of the self-voice during the generation of the ear plug bone conduction effect is reduced. Conversely, when the pressure sensor 242 detects a decrease in pressure by a predetermined amount or more from the state of FIG. 9B, it is determined that the ear hole 232 is not closed as shown in FIG. 9A. The mixing of the waveform inverted self-voice is stopped. The pressing sensor 242 determines the state transition between FIG. 9A and FIG. 9B based on the absolute amount of pressing and the direction of change of pressing. In a silent state where there is no voice between the two, the pressing sensor 242 detects the pressing by directly applying a pressing monitor signal that cannot be heard to the ear directly to the bone conduction vibration unit 225.

  FIG. 10 is a flowchart of the operation of the control unit 239 in the fourth embodiment of FIG. Note that the flow of FIG. 10 has many points in common with the flow of the first embodiment in FIG. FIG. 10 also mainly illustrates the functions of the cartilage conduction vibration unit 228 in order to explain the functions thereof, and extracts and illustrates the operations. Therefore, as in the case of FIG. 4, there are also operations of the control unit 239 not shown in the flow of FIG. 10, such as functions of a general mobile phone. In FIG. 10, portions different from those in FIG. 4 are shown in bold letters, and the following description will focus on these portions.

  Step S42 is a collection of steps S6 and S8 of FIG. 4, and includes a case where the non-call process of step S42 includes a case where the user directly goes to the next step without a non-call operation. The contents are the same as steps S6 and S8 in FIG. Step S44 is a collection of steps S10 and S12 in FIG. 4, and is a step for checking whether or not there is a call state between the other party regardless of whether the call is from the other party or from the user. Although shown, the contents are the same as those in steps S6 and S8 in FIG. In the fourth embodiment, since there is no configuration for opening and closing the mobile phone 301, a step corresponding to step S16 in FIG. 4 is not included.

  Step S46 relates to the first additional function in the fourth embodiment, and checks whether or not the mobile phone 301 has been away from the hand-held state for a predetermined time (for example, 0.5 seconds) and is standing still in a horizontal state. Then, when the proximity sensor is detected in step S22 and it is confirmed in step S46 that such a horizontal stationary state is not attained, the process proceeds to step S48 for the first time, and the cartilage conduction vibration source 225 is turned on. On the other hand, when the horizontal stationary state is detected in step S46, the process proceeds to step S50, in which the cartilage conduction vibration source 225 is turned off, and the process returns to step S14. Step S50 corresponds to the case where the cartilage conduction vibration source 225 is turned on and the process proceeds to step S46 in the repetition of the flow described later, and a horizontal stationary state is detected. When the process reaches step S50, the process returns to step S14 without doing anything.

  Step S52 relates to the second additional function in the fourth embodiment, and checks whether or not the ear plug osteoconductive effect is generated by strongly pressing the mobile phone 301 against the tragus 32 to close the ear hole 232. It is. Specifically, as shown in FIG. 9, the presence or absence of a change in pressure by a predetermined amount or more by the pressure sensor 242 and its direction are checked. When it is detected that the ear plug bone conduction effect is generated, the process proceeds to step S54, where the waveform inversion signal of the own voice is added to the cartilage conduction vibration source 225, and the process proceeds to step S58. On the other hand, when it is detected in step S52 that the ear plug bone conduction effect does not occur, the process proceeds to step S56, where the addition of the waveform inverted signal of the own voice to the cartilage conduction vibration source 225 is eliminated, and step S58 is performed. Move to In step S58, it is checked whether or not the call has been disconnected. If the call has not been disconnected, the process returns to step S22, and steps S22 and S46 to step S58 are repeated until the disconnection is detected in step S58. This corresponds to the occurrence and disappearance of the ear plug bone conduction effect during a call.

  The various features of each embodiment described above are not limited to the individual embodiments, but can be replaced or combined with the features of other embodiments as appropriate. For example, in the flowchart of the fourth embodiment in FIG. 10, there is no configuration for switching between the cartilage conduction vibration unit for the right ear 24 and the cartilage conduction vibration unit 26 for the left ear in the flowchart of the first embodiment in FIG. 4. The cartilage conduction vibration unit 24 for the right ear and the cartilage conduction vibration unit for the left ear as in the first embodiment are adopted as the configuration of the cartilage conduction vibration unit 228 of the first embodiment. In the repetition of the loop from step S22 and steps S46 to S58. In addition to the response to the occurrence and disappearance of the ear plug bone conduction effect, the function corresponding to step S24 to step S26 in FIG. It may be configured to perform this. Further, it is also possible to add the function of checking the horizontal stationary state and the function of turning off the cartilage conduction vibration unit 228 in the fourth embodiment to the third embodiment in FIG. Further, in Embodiments 1 to 3, it is also possible to employ the cartilage conduction vibration unit 228 as in Embodiment 4.

  FIG. 11 is a perspective view showing Example 5 of the mobile phone according to the embodiment of the present invention. The fifth embodiment is based on the fourth embodiment of FIG. 7 and most of its structure is common. Corresponding portions have the same reference characters allotted, and description thereof will not be repeated. In addition, in order to avoid complicating the drawing, the numbers are not given to the parts which are not described, but the functions and names of the parts common to the drawings are the same as those in FIG. For the detailed configuration, the block diagrams of the fourth embodiment in FIGS. 8 and 9 are basically used. The first difference between the fifth embodiment and the fourth embodiment is that the mobile phone 401 touches a so-called touch panel function (a large-screen display unit 205 on which an operation unit 209 such as a numeric keypad is displayed) with a finger to detect the touch position. The feature is that a setting for turning off the GUI operation by slide detection) can be set, and a push / push button 461 that is enabled only when the touch panel function is set to off is provided. The touch panel function can be turned off by operating the touch panel itself, and the touch panel function can be turned on by pressing and holding the push / push button 461 for a predetermined time or longer. In addition, the push / push button 461 has a function of, when enabled, a function of starting a call by the first press and disconnecting the call by pressing the second press during the call (both on and off). (Alternate switch function performed in step (1)). The first press of the push / push button 461 is performed when a call is made to a specific party or when a call is answered, and in either case, a call is started.

  A second point of the fifth embodiment that is different from the fourth embodiment is that the fifth embodiment is configured to function by a combination of the mobile phone 401 and the soft cover 463 for storing the mobile phone. In FIG. 11, the soft cover 463 is illustrated as being transparent for the sake of explanation of the configuration. However, the soft cover 463 is actually opaque. The mobile phone 401 is not visible from the outside while being stored in the soft cover 463.

  The function of the push / push button 461 can also be performed by pressing the push / push button 461 from above the soft cover 463 in a state where the mobile phone 401 is stored in the soft cover 463. Further, the soft cover 463 is linked with the cartilage conduction vibration source 225 and the cartilage conduction vibration unit 228 having the vibration conductor 227 of the mobile phone 401, and can make a call while the mobile phone 401 is stored in the soft cover 463. It is configured as follows. Hereinafter, this will be described.

  The soft cover 463 is made of an elastic material (silicone-based rubber, a mixture of silicone-based rubber and butadiene-based rubber, natural rubber, a structure in which air bubbles are sealed in these materials, or a transparent packing sheet material) whose acoustic impedance is similar to the ear cartilage. And the like, and a layer of air bubbles is separated and sealed with a thin film of a synthetic resin, etc.), and the vibration is transmitted from the cartilage conduction vibration source 225 when the mobile phone 401 is accommodated. The body 227 contacts the inside. By touching the outside of the soft cover 463 to the ear while the mobile phone 401 is stored, the vibration of the vibration conductor 227 is transmitted to the ear cartilage with a wide contact area through the soft cover 463. Further, sound from the outer surface of the soft cover 463 that resonates due to the vibration of the vibration conductor 227 is transmitted from the ear canal to the eardrum. Thereby, the sound source information from the cartilage conduction vibration source 225 can be heard as a loud sound. In addition, since the soft cover 463 applied to the ear blocks the external auditory canal, environmental noise can be cut off. Further, when the force of pressing the soft cover 463 against the ear is increased, the external auditory canal is almost completely closed, and the sound source information from the cartilage conduction vibration source 225 can be heard as a loud sound by the ear plug bone conduction effect. Note that the detection is performed via the soft cover 463, but in a state where the ear plug bone conduction effect is generated based on the pressing force detection by the cartilage conduction vibration source 225 in the same manner as in the fourth embodiment, the transmission unit 23 ( The waveform inversion signal is added to the self-voice signal from the microphone 223).

  In a call state in which the mobile phone 401 is housed in the soft cover 463, the vibration of the vibration conductor 227 transmitted to the soft cover 463 is transmitted to the transmitter 23, and there is a possibility that howling occurs. As a countermeasure, an insulating ring 465 having an acoustic impedance different from that of the soft cover main body is provided between the soft cover 463 and the soft cover 463 in order to cut off acoustic conduction between the vibration conductor 227 and the transmitting section 23. The insulating ring portion 465 can be formed by integrally molding or joining a material different from the material of the soft cover body. Further, the insulating ring portion 465 may be formed by joining layers having different acoustic impedances to the outside or the inside of the soft cover 463 formed of the same material. Further, a plurality of insulating ring portions 465 may be interposed between the vibration conductor 227 and the transmitting portion 23 to enhance the insulating effect.

  In addition, the soft cover 463 is configured as a microphone cover 467 near the transmitting unit 23 (microphone 223) so as not to hinder air conduction in order to enable a call while the mobile phone 401 is stored. You. The microphone cover 467 has a sponge-like structure such as an earphone cover.

  FIG. 12 is a flowchart of the operation of the control unit 239 (the diversion in FIG. 8) in the fifth embodiment of FIG. In the flow of FIG. 12, the same steps as those of FIG. 10 are denoted by the same step numbers, and description thereof will be omitted. FIG. 12 also mainly illustrates the functions of the cartilage conduction vibration unit 228 in order to mainly explain the functions thereof, and extracts and illustrates the operations. Therefore, similarly to FIG. 10 and the like, in the fifth embodiment, there are also operations of the control unit 239 not shown in the flow of FIG. 12, such as general mobile phone functions.

  In the flow of FIG. 12, when the process reaches step S62, it is checked whether or not the touch panel has been set to the OFF state by the above-described operation. Then, the process shifts to step S66 to reach step S34. Steps shown as normal processing in step S66 are steps S14, S18 to S22, S32, S36, S38 and S42 to S58 of FIG. ) Are grouped together. In other words, when the process proceeds from step S62 to step S64, the flow in FIG. 12 performs the same function as in FIG.

  On the other hand, if it is detected in step S62 that the touch panel off setting has been performed, the flow moves to step S68, the function of the push / push button 461 is enabled, and the flow advances to step S70. In step S70, the function of the touch panel is disabled, and in step S72, the presence or absence of the first push / push button 461 is detected. If there is no press detection, the process directly proceeds to step S34. On the other hand, when the first press of the push / push button 461 is detected in step S72, the process proceeds to step S74, and it is detected whether the mobile phone 401 is stored in the soft cover 463. This detection can be performed, for example, by the functions of the infrared light emitting units 19 and 20 and the infrared light proximity sensor 21 that constitute the proximity sensor.

  If storage in the soft cover 463 is detected in step S74, the flow proceeds to step S76, where the transmitting unit 23 is turned on and the receiving unit 13 is turned off. Further, in step S78, the cartilage conduction vibration source 225 is turned on, and the process proceeds to step S80, in which the mobile phone 401 is set in a talking state. If it is already in a call state, this is continued. On the other hand, if the storage in the soft cover 463 is not detected in step S74, the process proceeds to step S82 to turn on both the transmitting unit 23 and the receiving unit 13, and further turns off the cartilage conduction vibration source 225 in step S84, and proceeds to step S80. Proceed to. In step S86 subsequent to step S80, an ear plug bone conduction effect process is performed, and the flow advances to step S88. The ear plug bone conduction effect process in step S86 collectively illustrates steps S52 to S56 in FIG.

  In step S88, it is detected whether or not the push / push button 461 has been pressed for the second time. If there is no detection, the flow returns to step S74, and steps S74 to S88 are repeated unless the second press of the push / push button 461 is detected. During this repetition during a call, it is always checked whether or not the mobile phone 401 is stored in the soft cover 463. Therefore, when the environment noise is large and it is difficult to hear the sound in the receiver 13, for example, the user is in the middle of the call. The portable phone 401 is stored in the soft cover 463, so that it is possible to take measures such as shutting off environmental noise and making the sound more audible due to the ear plug bone conduction effect.

  On the other hand, when the second press of the push / push button 461 is detected in step S88, the flow shifts to step S90, disconnects the telephone call, turns off all transmission / reception functions in step S92, and proceeds to step S34. In step S34, it is checked whether the main power is off. If no main power off is detected, the flow returns to step S62, and thereafter, steps S62 to S92 and step S34 are repeated. In this repetition, since the touch panel off setting by the operation of the touch panel described above or the release of the off setting by the long press of the push / push button 461 is performed in step S64, the switching to the normal processing is appropriately performed. Can be.

  FIG. 13 is a perspective view showing Example 6 of the mobile phone according to the embodiment of the present invention. FIG. 13A is a front perspective view similar to FIG. 7, but as described later, since Embodiment 6 is configured as a digital camera having a mobile phone function, it is rotated by 90 degrees with respect to FIG. The angle is shown in the state of use as a digital camera. FIG. 13B is a rear perspective view (a front perspective view when viewed as a digital camera), and FIG. 13C is a cross-sectional view taken along a line BB in FIG. 13B.

  The sixth embodiment is also based on the fourth embodiment of FIG. 7, and since most of its structure is common, the corresponding portions are denoted by the same reference numerals and description thereof will be omitted. In addition, in order to avoid complicating the drawing, the numbers are not given to the parts which are not described, but the functions and names of the parts common to the drawings are the same as those in FIG. For the detailed configuration, the block diagrams of the fourth embodiment in FIGS. 8 and 9 are basically used. The first difference between the sixth embodiment and the fourth embodiment is that the mobile phone 501 is configured as a digital camera having a mobile phone function. That is, as shown in FIG. 13B, a zoom lens 555 having high optical performance is employed as an imaging lens of the rear main camera. The zoom lens 555 projects in a state shown by a dashed line in FIG. 13B when in use, but retracts to a position flush with the outer surface of the mobile phone 501 when not in use, a so-called collapsible lens. It has a configuration. Further, a strobe 565 for projecting auxiliary light when the subject is dark and a shutter release button 567 are provided. The mobile phone 501 has a grip portion 563 suitable for holding the camera with the right hand.

  The second difference between the sixth embodiment and the fourth embodiment is that, similarly to the soft cover 463 in the fifth embodiment, the grip portion 563 is made of a material (silicone rubber, silicone rubber) having an acoustic impedance similar to that of the ear cartilage. And butadiene-based rubber, natural rubber, or a structure in which air bubbles are sealed in these rubbers), and has elasticity suitable for improving the grip feeling. Unlike the arrangement of the fourth embodiment, the cartilage conduction vibration source 525 is arranged on the back side of the grip portion 563. 13C, the cartilage conduction vibration source 525 is in contact with the back surface of the grip 563.

  Therefore, by applying the grip portion 563 to the ear, the vibration of the cartilage conduction vibration source 525 is transmitted to the ear cartilage with a wide contact area through the grip portion 563. Furthermore, sound from the outer surface of the grip portion 563 that resonates due to the vibration of the cartilage conduction vibration source 525 is transmitted from the ear canal to the eardrum. Thereby, the sound source information from the cartilage conduction vibration source 525 can be heard as a loud sound. Further, similarly to the fifth embodiment, since the grip portion 563 applied to the ear has a shape that blocks the external auditory canal, it is possible to cut off environmental noise. Further, in the same manner as in the fifth embodiment, when the force for pressing the grip portion 563 against the ear is increased, the external auditory canal is almost completely closed. You can hear it as loud. Although detection is performed via the grip portion 563, as in the fifth embodiment, when the ear plug bone conduction effect is generated based on the pressing force detection by the cartilage conduction vibration source 525, transmission of a microphone or the like is performed. The waveform inversion signal is added to the self-voice signal from the unit 523.

  Further, unlike the fourth embodiment, the transmission unit 523 is provided not on the front face of the mobile phone 501 but on the end face thereof, as is apparent from FIG. Therefore, the transmitting section 523 can commonly pick up the voice of the user when the user talks with the earpiece 13 touching the ear and when the user talks with the grip 563 on the back side touching the ear. It should be noted that whether the receiver 13 or the cartilage conduction vibration source 525 is valid can be switched by a switch button 561. Further, when the zoom lens 555 is protruded in the state shown by the dashed line in FIG. 13B, it is not suitable to place the grip 563 on the ear for talking, and the switching button is operated in such a state. When the setting for enabling the cartilage conduction vibration source 525 is made, the zoom lens 555 is automatically retracted, and the execution of the switching is suspended until the collapse is completed.

  FIG. 14 is a flowchart of the operation of the control unit 239 (the diversion in FIG. 8) in the sixth embodiment of FIG. In the flow of FIG. 14, the same steps as those of the flow of FIG. 10 are denoted by the same step numbers, and description thereof will be omitted. FIG. 14 also mainly illustrates the functions of the cartilage conduction vibration unit 228 in order to explain the functions thereof, and extracts and illustrates the operations. Therefore, similarly to FIG. 10 and the like, in the sixth embodiment, there are also operations of the control unit 239 not shown in the flow of FIG. 14, such as functions of a general mobile phone.

  In the flow of FIG. 14, when the process reaches step S104, it is checked whether a call start operation has been performed. If there is no operation, the process immediately proceeds to step S34. On the other hand, when a call start operation is detected, the process proceeds to step S106, and it is checked whether or not the cartilage conduction setting has been made by the switching button 561. If the setting is the cartilage conduction setting, it is checked in step S108 whether the zoom lens 555 is protruding. As a result, if the zoom lens 555 does not protrude, the process proceeds to step S110, where the transmitting unit 523 is turned on and the receiving unit 13 is turned off.

  On the other hand, when the cartilage conduction setting is not detected in step S106, the process proceeds to step S114, in which both the transmitting unit 523 and the receiving unit 13 are turned on. In step S116, the cartilage conduction vibration source 525 is turned off, and the process proceeds to step S118. Further, even when the cartilage conduction setting is detected in step S106, if it is detected in step S108 that the zoom lens 555 is protruding, the process proceeds to step S111, instructs the collapse of the zoom lens 555, and proceeds to step S114. Transition. If collapsing has already started, an instruction is given to continue. As described later, steps S106 to S116 are repeated as long as the call state is not interrupted. In this manner, in accordance with the detection of the cartilage conduction setting in step S106, collapsing is instructed in step S111, and after collapsing starts, step S110 is performed until collapsing is completed and protrusion of the zoom lens 555 is no longer detected in step S108. , The states of step S114 and step S116 are maintained.

  Steps S46 to S56 subsequent to step S112 are common to FIG. When the process proceeds from step S54 or step S56 to step S118, it is checked whether or not the call state has been disconnected. If no call disconnection has been detected, the flow returns to step S106. Hereinafter, steps S106 to S118 and steps S46 to S46 will be performed. S56 is repeated. Thus, for example, when the environmental noise is large and the sound is difficult to hear in the receiver 13, the user can operate the switch button 561 to switch to the cartilage conduction setting during a call, thereby shutting off the environmental noise or the ear plug bone. It is possible to take measures such as making the sound more audible by the guiding effect. At this time, if the zoom lens 555 is in the protruding state, it is automatically retracted.

  FIG. 15 is a perspective view showing Example 7 of the mobile phone according to the embodiment of the present invention. The mobile phone 601 according to the seventh embodiment is configured such that the upper part 607 can be folded over the lower part 611 by the hinge 603 as in the first embodiment. FIG. 15A is a front perspective view similar to FIG. 1, and FIG. 15B is a rear perspective view thereof. FIG. 15C is a cross-sectional view of an essential part taken along the line BB in FIG. 15B. Since most of the structure of the seventh embodiment is the same as that of the first embodiment, corresponding portions are denoted by the same reference numerals and description thereof will be omitted. In addition, in order to avoid complication of the illustration, the number itself is not given to the parts whose description is omitted, but the functions and names of the parts common to the drawings are the same as those in FIG. Although the outline is the same as that of the first embodiment, the detailed internal configuration basically uses the block diagram of the fourth embodiment in FIGS. 8 and 9.

  The first difference between the seventh embodiment and the first embodiment is that a cartilage conduction output portion 663 having a large area is provided near the hinge of the upper portion 607 as shown in FIG. Similar to the soft cover 463 in the fifth embodiment and the grip portion 563 in the sixth embodiment, the cartilage conduction output portion 663 is made of a material whose acoustic impedance is similar to that of the otic cartilage (silicone rubber, silicone rubber and butadiene rubber). , Natural rubber, or a structure in which air bubbles are sealed in these materials, and has elasticity suitable for protecting foreign matter from colliding with the outer wall of the mobile phone 601. Unlike the arrangement of the first embodiment, a cartilage conduction vibration source 625 is arranged on the back side of the cartilage conduction output unit 663. 15C, the cartilage conduction vibration source 625 is in contact with the back surface of the cartilage conduction output section 663.

  Therefore, by folding the mobile phone 601 and putting the cartilage conduction output section 663 against the ear, the vibration of the cartilage conduction vibration source 625 is transmitted to the ear cartilage with a wide contact area through the cartilage conduction output section 663. Further, sound from the outer surface of the cartilage conduction output portion 663 that resonates due to the vibration of the cartilage conduction vibration source 625 is transmitted from the ear canal to the eardrum. Thereby, the sound source information from the cartilage conduction vibration source 625 can be heard as a loud sound. Further, similarly to the fifth and sixth embodiments, the cartilage conduction output portion 663 applied to the ear has a shape that blocks the external auditory canal, so that environmental noise can be cut off. Further, in the same manner as in the fifth and sixth embodiments, when the force of pressing the cartilage conduction output portion 663 against the ear is increased, the external auditory canal is almost completely closed. The sound source information from can be heard as a loud sound. Note that the detection is performed via the cartilage conduction output unit 663, but in the state where the ear plug bone conduction effect is generated based on the pressing force detection by the cartilage conduction vibration source 625, as in the fifth and sixth embodiments. , A waveform inversion signal is added to the self-voice signal from the transmission unit 623 such as a microphone.

  The second difference between the seventh embodiment and the first embodiment is that, as shown in FIG. 15A, the transmitting unit 623 is provided not on the front of the lower part 611 of the mobile phone 601 but on the lower end surface of the lower part 611. It is a point. Therefore, the transmission unit 623 is common when the mobile phone 601 is opened and the receiver unit 13 is put on the ear to make a call, or when the mobile phone 601 is closed and the cartilage conduction output unit 663 is put on the ear to make a call. The voice of the user can be picked up. When the mobile phone 601 is set to support the cartilage conduction switching, the receiving unit 13 is enabled when the mobile phone 601 is opened, and the cartilage conduction vibration source 625 is enabled when the mobile phone 601 is closed. Switch. On the other hand, when the setting for switching to cartilage conduction is not set, the cartilage conduction vibration source 625 does not automatically become effective, and normal transmission and reception functions regardless of whether the mobile phone 601 is opened or closed.

  As is clear from the rear perspective view of FIG. 15B, the rear main camera 55, the speaker 51, and the rear display unit 671 are provided on the rear surface of the mobile phone 601. Further, on the back surface of the mobile phone 601, a push / push button 661 that is enabled when cartilage conduction switching is set and is enabled when the mobile phone 601 is closed is provided. The push / push button 661 has a function of starting a telephone call by the first press in the same manner as in the fifth embodiment, and disconnecting the telephone call by performing a second press during the call. The first press of the push / push button 661 is performed when a call is made to a specific party or when a call is answered, and in either case, a call is started.

  FIG. 16 is a flowchart of the operation of the control unit 239 (the diversion in FIG. 8) in the seventh embodiment of FIG. In the flow of FIG. 16, the same steps as those of the flow of FIG. 14 are denoted by the same step numbers, and description thereof will be omitted. FIG. 16 also extracts and illustrates operations focusing on related functions in order to mainly explain the functions of the cartilage conduction vibration unit 228. Therefore, similarly to FIG. 14 and the like, in the seventh embodiment, there are also operations of the control unit 239 not shown in the flow of FIG. 16, such as general mobile phone functions.

  In the flow of FIG. 16, when the communication is started and the process proceeds to step S122, it is checked whether or not the setting corresponding to the cartilage conduction switching has been made. If the setting corresponding to cartilage conduction switching is confirmed in step S122, the process proceeds to step S124 to determine whether or not the mobile phone 601 is open, that is, from the state where the upper part 607 is folded over the lower part 611 as shown in FIG. Check to see if it has been removed. When it is confirmed that the mobile phone 601 is not opened and the upper part 607 is folded so as to overlap the lower part 611, the process proceeds to step S110, where the transmitting unit 623 is turned on and the receiving unit 13 is turned off. Then, in step S112, the cartilage conduction vibration source 625 is turned on, and the process proceeds to step S46. In this way, it is possible for the cartilage conduction output unit 663 to receive a call while the mobile phone 601 is folded.

  On the other hand, if the cartilage conduction switching correspondence setting is not detected in step S122, the process proceeds to step S114 without asking whether or not the mobile phone 601 is folded, and the transmitting unit 623 and the receiving unit 13 are turned on together with step S116. Then, the cartilage conduction vibration source 625 is turned off, and the process proceeds to step S118. Further, when it is confirmed that the mobile phone 601 is opened in step S124 when the setting for switching to cartilage conduction is detected in step S106, the process also proceeds to step S114.

  In the flow of FIG. 16 as well, it is checked whether or not the call state has been disconnected in step S118. If the call disconnection is not detected, the flow returns to step S122. Thereafter, steps S122, S124, S114 to S118, and Steps S46 to S56 are repeated. In this way, when the setting for switching to cartilage conduction has been set in advance, the user folds the mobile phone 601 during a call and outputs the cartilage conduction output unit, for example, when environmental noise is large and sound is difficult to hear in the receiver 13. By switching to the reception by 663, it is possible to take measures such as shutting off environmental noise and making the sound more audible by the ear plug bone conduction effect.

  To summarize the features of the fifth and sixth embodiments, the mobile phone has a cartilage conduction vibration source and a conductor that guides the vibration of the cartilage conduction vibration source to the ear cartilage, and the conductor is configured as an elastic body. Or has a size that touches the ear cartilage at a plurality of locations or a size that closes the ear canal in contact with the ear cartilage, or has at least an area approximating the earlobe, or approximates the acoustic impedance of the ear cartilage Has acoustic impedance. Then, sound information from the cartilage conduction vibration source can be effectively heard by any of these features or a combination thereof. The utilization of these features is not limited to the above embodiment. For example, by utilizing the advantages of the material, size, area, arrangement, and structure disclosed in the above embodiment, the present invention can be configured without using an elastic conductor.

  FIG. 17 is a perspective view showing Example 8 of the mobile phone according to the embodiment of the present invention. The eighth embodiment is configured as a digital camera having a mobile phone function, similarly to the sixth embodiment of FIG. 13, and similarly to FIG. 13, a front perspective view of FIG. , A rear perspective view, and FIG. 17C is a cross-sectional view taken along the line BB in FIG. 17B. The eighth embodiment has almost the same structure as that of the sixth embodiment of FIG.

  Example 8 differs from Example 6 in that the cartilage conduction vibration source 725 is embedded in the grip portion 763 as is apparent from the cross section of FIG. The grip portion 763 is made of a material (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or air bubbles sealed in these materials) whose acoustic impedance is similar to that of the ear cartilage, as in Example 6 in FIG. Structure), and has elasticity suitable for improving grip feeling. Note that the detailed internal configuration basically uses the block diagrams of the fourth embodiment in FIGS. 8 and 9 similarly to the sixth embodiment.

  The flexible connection line 769 in FIG. 17C connects the cartilage conduction vibration source 725 embedded inside the grip portion 763 to the circuit portion 771 such as the phase adjustment mixer portion 236 in FIG. The structure for embedding the cartilage conduction vibration source 725 in the grip portion 763 as shown in the cross-sectional view of FIG. 17C can be realized by integral molding in which the cartilage conduction vibration source 725 and the flexible connection wire 769 are inserted into the grip portion 763. is there. Further, the grip portion 763 can be also realized by dividing the grip portion 763 into two parts with the flexible connection line 769 and the cartilage conduction vibration source 725 as boundaries, and bonding the grip portion 763 with the flexible connection line 769 and the cartilage conduction vibration source 725 therebetween. .

  In the eighth embodiment, when the grip portion 763 is put on the ear, the vibration of the cartilage conduction vibration source 725 is transmitted to the ear cartilage with a wide contact area through the grip portion 763, and the vibration is generated by the vibration of the cartilage conduction vibration source 725. Sound from the outer surface of the grip portion 763 is transmitted from the ear canal to the eardrum, the grip portion 763 applied to the ear blocks the ear canal so that environmental noise is cut off, and the grip portion 763 is pressed against the ear. As the force is increased, the external auditory canal is almost completely closed, and the sound source information from the cartilage conduction vibration source 725 can be heard as a loud sound by the ear plug bone conduction effect, as in the sixth embodiment. Further, based on the detection of the pressing force by the cartilage conduction vibration source 625, in a state where the ear plug bone conduction effect is occurring, the waveform inversion signal addition to the self-voice signal from the transmitting unit 523 such as a microphone may be performed. This is similar to the sixth embodiment. In the eighth embodiment, since the cartilage conduction vibration source 725 is embedded in the grip part 763, the distortion of the cartilage conduction vibration source 725 caused by the distortion of the grip part 763 due to the increase of the pressing force causes the ear plug bone conduction effect. State is detected.

  The significance of embedding the cartilage conduction vibration source 725 in the elastic body such as the grip portion 763 in the eighth embodiment is that in addition to obtaining good sound conduction as described above, it is also a measure against impact to the cartilage conduction vibration source 725. It is in. The piezoelectric bimorph element used as the cartilage conduction vibration source 725 in the eighth embodiment has a property of dislike a shock. Here, by constructing the cartilage conduction vibration source 725 so as to wrap it from the surroundings as in the eighth embodiment, it is possible to buffer the shock applied to the rigid structure of the mobile phone 701, and to always carry the mobile phone 701 which is exposed to the risk of dropping. Mounting on the telephone 701 can be facilitated. The elastic body surrounding the cartilage conduction vibration source 725 not only functions as a cushioning material but also functions as a configuration for more effectively transmitting the vibration of the cartilage conduction vibration source 725 to the ear as described above.

  FIG. 18 is a perspective view showing Example 9 of the mobile phone according to the embodiment of the present invention. The mobile phone 801 according to the ninth embodiment is configured such that the upper part 807 can be folded over the lower part 611 by the hinge 603 as in the seventh embodiment. In FIG. 18, similarly to FIG. 15, FIG. 18 (A) is a front perspective view, FIG. 18 (B) is a rear perspective view, and FIG. It is sectional drawing. Since the eighth embodiment of FIG. 18 has most of the same structure as the seventh embodiment of FIG. 15, the corresponding portions are denoted by the same reference numerals and description thereof will be omitted.

  The ninth embodiment differs from the seventh embodiment in that the cartilage conduction vibration source 825 is sandwiched between the cartilage conduction output portion 863 and the internal cushioning material 873 as is apparent from the cross section of FIG. This cartilage conduction output portion 863 is made of a material (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or natural rubber) having an acoustic impedance similar to that of the ear cartilage, similarly to the cartilage conduction output portion 663 in the seventh embodiment. (A structure in which air bubbles are sealed), and has elasticity suitable for protecting the outer wall of the mobile phone 801 from collision with foreign matter. Further, the internal cushioning material 873 can be made of any material as long as it is an elastic body for the purpose of cushioning, but it can be made of the same material as the cartilage conduction output portion 863. The detailed internal configuration basically uses the block diagram of the fourth embodiment in FIGS. 8 and 9 as in the seventh embodiment.

  As shown in the cross section of FIG. 18C, a cartilage conduction vibration source 825 and a flexible connection line 869 are sandwiched between the cartilage conduction output portion 863 and the internal cushioning member 873. This flexible connection line 869 connects the cartilage conduction vibration source 825 to a circuit portion 871 such as the phase adjustment mixer unit 236 in FIG. 8 as in the eighth embodiment. The structure in which the cartilage conduction vibration source 825 and the flexible connection line 869 are sandwiched between the cartilage conduction output unit 863 and the internal cushioning material 873 is integrated in the cartilage conduction output unit 875. The mobile phone 801 is fitted in the upper part 807.

  Also in the ninth embodiment, the cartilage conduction output portion 863 is applied to the ear, whereby the vibration of the cartilage conduction vibration source 825 is transmitted to the ear cartilage with a wide contact area through the cartilage conduction output portion 863. The sound from the cartilage conduction output portion 863 that resonates due to the vibration of the ear is transmitted from the external auditory canal to the eardrum, and the cartilage conduction output portion 863 applied to the ear has a shape that blocks the external auditory canal, so that environmental noise is cut off. When the force that presses the conduction output unit 863 against the ear is increased, the external auditory canal is almost completely blocked, and the sound source information from the cartilage conduction vibration source 825 can be heard as a loud sound by the osteocontraction effect. Is the same as Further, based on the pressing force detection by the cartilage conduction vibration source 825, in a state where the ear plug bone conduction effect is generated, the waveform inversion signal addition to the self-voice signal from the transmitting unit 623 such as a microphone may be performed. This is the same as the seventh embodiment. In the ninth embodiment, the cartilage conduction vibration source 825 is sandwiched between the cartilage conduction output portion 863 and the internal cushioning material 873, both of which are elastic bodies. The state in which the ear plug bone conduction effect occurs due to the distortion of the cartilage conduction vibration source 825 caused by the distortion of the conduction output section 863 is detected.

  In the ninth embodiment, the significance of the structure in which the cartilage conduction vibration source 825 is sandwiched between the cartilage conduction output portion 863 and the internal cushioning material 873, both of which are elastic, is to obtain good sound conduction as described above. In addition to the above, a measure against impact on the cartilage conduction vibration source 825 constituted by the piezoelectric bimorph element is provided. That is, in the same manner as in the eighth embodiment, the cartilage conduction vibration source 825 is configured to be wrapped by an elastic body from the surroundings, so that it is possible to buffer the impact on the rigid structure of the mobile phone 801 and to always reduce the risk of dropping. It can be easily mounted on the mobile phone 801 that is exposed to light. The elastic body sandwiching the cartilage conduction vibration source 825 not only functions as a cushioning material, but also forms at least the outer elastic body with a material whose acoustic impedance is similar to that of the ear cartilage, so that the cartilage conduction vibration is increased as described above. It functions as a configuration to more effectively transmit the vibration of the source 825 to the ear.

  FIG. 19 is a perspective view showing Example 10 of the mobile phone according to the embodiment of the present invention. The mobile phone 901 according to the tenth embodiment is an integrated type having no movable parts, as in the fourth embodiment, and is configured as a so-called smartphone having a large-screen display unit 205 having a GUI function. Since the structure has many common points, the corresponding portions are denoted by the same reference numerals as in the fourth embodiment, and description thereof is omitted. In the tenth embodiment, similarly to the fourth embodiment, the “upper portion” does not mean the separated upper portion, but means the upper portion of the integrated structure.

  The tenth embodiment is different from the fourth embodiment in that the cartilage conduction vibration source 925 composed of a piezoelectric bimorph element or the like serves as a cartilage conduction vibration source and also serves as a driving source of a receiving unit that generates sound waves transmitted to the eardrum by air conduction. It is a point. Specifically, as in the fourth embodiment, a vibration conductor 227 is arranged on the upper side of the mobile phone in contact with the upper part of the cartilage conduction vibration source 925. Further, in front of the cartilage conduction vibration source 925, a material (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or natural rubber) having an acoustic impedance similar to that of the ear cartilage in the same manner as in the seventh embodiment. A cartilage conduction output portion 963 formed by a structure in which air bubbles are sealed is disposed. Further, as will be described later, the cartilage conduction output unit 963 also serves as a receiver for generating sound waves transmitted to the eardrum by air conduction, and therefore, in the tenth embodiment, there is no separate receiver unit 13 as in the fourth embodiment.

  According to the above configuration, first, the vibration of the cartilage conduction vibration source 925 is transmitted to the side by the vibration conductor 227 and vibrates both ends 224 and 226 thereof. You can hear the sound by conduction. Further, as in the fourth embodiment, the vibration conductor 227 does not only vibrate at the right end 224 and the left end 226 but vibrates as a whole. Therefore, also in the tenth embodiment, voice information can be transmitted regardless of where the inner upper edge of the mobile phone 901 is in contact with the ear cartilage. When the mobile phone 901 is applied to the ear in such a manner that a part of the cartilage conduction output portion 963 comes to the front of the ear canal entrance in the same manner as a normal mobile phone, the vibration conductor 227 contacts a wide area of the ear cartilage. At the same time, the cartilage conduction output section 963 comes into contact with the otocartilage such as the tragus. Through such contact, sound can be heard by cartilage conduction. Further, similarly to the fifth to ninth embodiments, the sound from the outer surface of the cartilage conduction output portion 963 resonated by the vibration of the cartilage conduction vibration source 925 is transmitted from the external auditory canal to the eardrum as a sound wave. In this way, in a normal mobile phone use state, the cartilage conduction output unit 963 can function as an air-conducting reception unit.

  The cartilage conduction differs depending on the magnitude of the pressing force applied to the cartilage. When the pressing force is increased, a more effective conduction state can be obtained. This means that if the received sound is difficult to hear, a natural action of increasing the force of pressing the mobile phone against the ear can be used for volume control. Then, such a function can be naturally understood by the user through a natural action, for example, without being explained to the user by an instruction manual. In the tenth embodiment, the vibration of the cartilage conduction vibration source 925 is configured such that both the vibration conductor 227, which is a rigid body, and the cartilage conduction output portion 963, which is an elastic body, can simultaneously contact the ear cartilage. By adjusting the pressing force of the vibration conductor 227, the sound volume can be more effectively adjusted.

  The implementation of the present invention is not limited to the above embodiment, and the various advantages of the present invention described above can be enjoyed in other embodiments. For example, in the tenth embodiment, when the combination of the cartilage conduction vibration source 925 and the cartilage conduction output unit 963 is configured to function only for the air-conducting reception unit, the ear cartilage is placed at the position where the cartilage conduction output unit 963 is arranged. It is possible to arrange a resonator suitable as a speaker other than a material whose acoustic impedance is similar to that of the speaker. Even in this case, in the tenth embodiment, the cartilage conduction vibration source 925 composed of a piezoelectric bimorph element or the like serves as a cartilage conduction vibration source, and also serves as a driving source of a receiver that generates sound waves transmitted to the eardrum by air conduction. You can enjoy the benefits.

  FIG. 20 is a perspective view showing Example 11 of the mobile phone according to the embodiment of the present invention. The mobile phone 1001 according to the eleventh embodiment is an integrated type having no movable parts, similarly to the fourth embodiment, and is configured as a so-called smartphone having a large-screen display unit 205 having a GUI function. Since the structure has many common points, the corresponding portions are denoted by the same reference numerals as in the fourth embodiment, and description thereof is omitted. Note that, in the eleventh embodiment, similarly to the fourth embodiment, the “upper portion” does not mean the separated upper portion but the upper portion of the integrated structure.

  The difference between the eleventh embodiment and the fourth embodiment is that the right ear vibrating portion 1024 and the left ear vibrating portion 1026 are not the front surface of the mobile phone 1001 but the side surfaces 1007 and the numbers are omitted because of the illustrated relationship. That is, it is provided on the opposite side surface. (Note that the arrangements of the right ear vibrating section 1024 and the left ear vibrating section 1026 are reversed left and right with respect to the fourth embodiment of FIG. 7). In the eleventh embodiment as well, the right ear vibrating part 1024 and the left ear vibrating part 1026 are respectively configured as both ends of the vibration conductor 1027, and the cartilage made of a piezoelectric bimorph element or the like is provided below the vibration conductor 1027. A conductive vibration source 1025 is arranged in contact with and transmits the vibration to vibration conductor 1027. Thus, the vibration of the cartilage conduction vibration source 1025 is transmitted to the side by the vibration conductor 1027, and vibrates both ends 1024 and 1026. Both ends 1024 and 1026 of the vibration conductor 1027 are arranged so as to be in contact with the tragus when the upper end portion of the side surface (for example, 1007) of the mobile phone 1001 is placed on the ear.

  In addition, the transmitting unit 1023 such as a microphone can pick up a sound pronounced by the user regardless of which of the right ear vibrating unit 1024 and the left ear vibrating unit 1026 is in contact with the tragus. As shown in FIG. Note that the mobile phone 1001 according to the eleventh embodiment is provided with a speaker 1013 for a videophone while observing the large screen display unit 205. The switching is performed, so that the sound produced by the user observing the large screen display unit 205 can be picked up.

  FIG. 21 is a side view of the mobile phone 1001 showing the functions of the right ear vibrating unit 1024 and the left ear vibrating unit 1026, and the illustrated method is in accordance with FIG. However, as described with reference to FIG. 20, in the eleventh embodiment, the right ear vibrating unit 1024 and the left ear vibrating unit 1026 are provided on the side surface of the mobile phone 1001, respectively. Therefore, when the mobile phone 1001 is applied to the ear in the eleventh embodiment, the side of the mobile phone 1001 is applied to the tragus as shown in FIG. That is, since the surface of the display unit 5 of the mobile phone 1 does not touch the tragus as shown in FIG.

  More specifically, FIG. 21A shows a state where the tragus 32 of the right ear 28 is held with the mobile phone 1001 in the right hand, and the mobile phone 1001 is in contact with the right ear 28. The opposite side surface is visible, and the surface of the large screen display unit 205 whose cross section is illustrated is substantially perpendicular to the cheek and faces downward and backward of the face. As a result, the large-screen display unit 205 does not hit the ears and cheeks and becomes dirty with sebum or the like as described above. Similarly, FIG. 21B shows a state in which the mobile phone 1001 is held on the left hand and is in contact with the tragus 34 of the left ear 30. In this case as well, as in FIG. 205 is substantially perpendicular to the cheek and faces downward and rearward of the face, so that the large-screen display unit 205 does not hit the ears or cheeks and becomes dirty with sebum or the like.

  In the use state as shown in FIG. 21, for example, in the case of FIG. 21A, the mobile phone 1001 can be held without twisting the hand from the state of holding the mobile phone 1001 with the right hand and observing the large screen display unit 205. This is realized by moving the right ear vibrating part 1024 against the tragus 32. Therefore, without changing the mobile phone 1001 or twisting the hand, the observation state of the large screen display unit 205 and the right ear vibrating unit 1024 are changed to the tragus by the natural movement of the right hand that slightly changes the angle between the elbow and the wrist. A transition between states corresponding to 32 is possible. In the above description, for the sake of simplicity, the state of FIG. 21 assumes that the large-screen display unit 205 is substantially perpendicular to the cheek. Can be freely selected, so that the angle of the cheek in the large screen display unit 205 does not necessarily have to be a right angle, and may be appropriately inclined. However, according to the configuration of the eleventh embodiment, the vibrating section for right ear 1024 and the vibrating section for left ear 1026 are provided on the side surface of the mobile phone 1001, respectively. , The large-screen display unit 205 does not hit the ears and cheeks and becomes dirty with sebum or the like.

  In the eleventh embodiment, as a result that the large screen display unit 205 does not hide in the direction of the cheek, there is a possibility that the display contents such as the call destination may be seen by others before and after. Therefore, in the eleventh embodiment, for privacy protection, switching from normal display to privacy protection display (for example, no display) is automatically performed when the right ear vibrator 1024 or the left ear vibrator 1026 is in contact with the ear. Done. The details will be described later.

  FIG. 22 is a perspective view showing Example 12 of the mobile phone according to the embodiment of the present invention. FIG. 22A shows a state in which a handle 1181 described later does not project, and FIG. 22B shows a state in which the handle 1181 projects. In the mobile phone 1101 according to the twelfth embodiment, similarly to the eleventh embodiment, the cartilage conduction vibrating portion 1124 is a side surface of the mobile phone 1101 (the left side surface in FIG. 22, which is a hidden surface for convenience of illustration). So no number is given). In the twelfth embodiment, the mobile phone is based on an integrated type having no movable parts as in the eleventh embodiment, and is configured as a so-called smartphone having a large screen display unit 205 having a GUI function. I have. Since the structure has many points in common, the corresponding parts are denoted by the same reference numerals as in Embodiment 11, and description thereof is omitted. In the twelfth embodiment, as in the eleventh embodiment, the “upper portion” does not mean the separated upper portion but the upper portion of the integrated structure.

  The twelfth embodiment is different from the eleventh embodiment in that a cartilage conduction vibrating part 1124 is provided on the left side of the mobile phone 1101 in FIG. . In addition, since what is put on the ear is limited to the left side surface, a transmitting unit 1123 such as a microphone is also provided on the lower surface near the left side of the mobile phone 1101 as shown in FIG. In the twelfth embodiment as well, during a videophone call while observing the large screen display unit 205, the transmission unit 1123 is switched, and the user who is observing the large screen display unit 205 produces a sound. Can pick up audio.

  In the twelfth embodiment, the cartilage conduction vibrating unit 1124 can be applied to the tragus of the right ear in the same manner as in the eleventh embodiment from the state where the large screen display unit 205 is visible as shown in FIG. On the other hand, in order to contact the cartilage conduction vibrating portion 1124 with the tragus of the left ear, the cartilage conduction vibrating portion 1124 can be opposed to the left ear by switching the mobile phone 1101 so that it faces down. . Such use is possible even when the handle 1181 is not projected as shown in FIG.

  Next, the function of the handle will be described. One natural way of holding the cartilage conduction vibrating portion 1124 to the ear at an angle such that the large screen display surface 205 is substantially perpendicular to the cheek as shown in FIG. 21 is provided with the large screen display portion 205. The front and back of the mobile phone 1101 are sandwiched between the thumb and the other four fingers. At this time, a finger touches the large screen display unit 205, which may cause malfunction and cause a comparison during the call. There is a risk of fingerprint contamination due to long contact times and strong contact.

  Therefore, in the twelfth embodiment, the state of FIG. 22A is changed from the state of FIG. The handle 1181 is protruded in this state, and the handle 1181 can be used for holding. Thus, in the state shown in FIG. 22B, the handle 1181 and the end of the main body of the mobile phone 1101 can be sandwiched between the thumb and the other four fingers. Can be held. In a case where the protrusion amount is relatively large, the mobile phone 1101 can be held by holding the handle 1181. As in the case of the state of FIG. 22A, by holding the mobile phone 1101 face down, the cartilage conduction vibrating portion 1124 can be applied to the tragus of the left ear.

  In order to make the handle 1181 protrude from FIG. 22 (A), the handle is unlocked by pressing the protruding operation button 1183, and the handle is slightly protruded, so that the state shown in FIG. . In the state shown in FIG. 22B, the lock is engaged, so that there is no problem when the handle 1181 is pressed against the cartilage conduction vibrating portion 1124 against the tragus. In order to store the handle 1181, the lock is released by pressing the protruding operation button 1183 in the state of FIG. 22B, and the lock is activated by pushing the handle 1181 to the state of FIG. 22A.

  FIG. 23 is a flowchart of the operation of the control unit 239 (diverted in FIG. 8) in the twelfth embodiment of FIG. Note that the flow in FIG. 23 has many parts in common with the flow in FIG. 14, and accordingly, the corresponding steps are denoted by the same step numbers and description thereof is omitted. FIG. 23 also extracts and illustrates operations focusing on related functions in order to mainly explain the functions of the cartilage conduction vibration unit 228. Therefore, similarly to FIG. 14 and the like, also in the twelfth embodiment, there are operations of the control unit 239 not shown in the flow of FIG. 23, such as functions of a general mobile phone. In FIG. 23, parts different from those in FIG. 14 are shown in bold letters, and the following description will focus on these parts.

  In the flow of FIG. 23, when the process reaches step S104, it is checked whether a call start operation has been performed. If there is no operation, the process immediately proceeds to step S34. On the other hand, when the call start operation is detected, the process proceeds to step S132, and it is checked whether the handle 1181 is in the protruding state. If it is not in the protruding state, the process proceeds to step S134, and it is checked whether the cartilage conduction vibrating section 1124 is in contact with the otic cartilage. Then, when the contact state is detected, the process proceeds to step S136. When it is detected in step S132 that the handle 1181 is in the protruding state, the process immediately proceeds to step S136.

  In step S136, the transmission unit 1123 is turned on, and in step S138, the cartilage conduction vibration unit 1124 is turned on. On the other hand, in step S140, the speaker 1013 is turned off. Next, the process proceeds to step S142, where the display on the large screen display unit 205 is set as a privacy protection display. This privacy protection display is a predetermined display that does not include privacy information or is in a non-display state. At this point, only the display contents are changed without turning off the large screen display unit 205 itself. After performing such display control, the process proceeds to step S52. If the target state has already been set in steps S136 to S142, these steps do not result in anything, and the process proceeds to step S52.

  On the other hand, if it is not detected in step S134 that the cartilage conduction vibrating section 1124 is in contact with the otic cartilage, the process proceeds to step S144, and the transmitting section 1123 is turned on. The vibration unit 1124 is turned off. On the other hand, in step S148, the speaker 1013 is turned on. Next, the process proceeds to step S150, and the display on the large screen display unit 205 is set to the normal display. After performing such display control, the process proceeds to step S118. Note that if the target state has already been set in steps S144 to S150, these steps do not result in anything, and the process proceeds to step S118.

  Steps S52 to S56 and steps S118 and S34 subsequent to step S142, and steps S118 and S34 subsequent to step S150 are common to FIG. In step S118, a check is made to determine whether or not the call has been disconnected. If no disconnection has been detected, the flow returns to step S132. Thereafter, steps S132 to S150 and steps S52 to S56 are repeated. . As a result, switching of the cartilage conduction vibration unit 1124 and the speaker 1013 and switching of display are automatically performed by taking the handle 1181 in and out or by contact and non-contact of the cartilage conduction vibration unit 1124. When the cartilage conduction vibration unit 1124 is turned on, the switching of the presence / absence of the self-voice waveform inversion signal based on the presence / absence of the ear plug conduction effect is automatically performed.

  Note that, in the repetition of the above steps, a step of determining whether a predetermined time has elapsed since the display of the large screen display unit 205 was first changed to the privacy protection display in step S142, and a power saving operation is performed when the predetermined time has elapsed. A step of turning off the large screen display unit 205 itself for the purpose of (1) may be inserted between step S142 and step S52. At this time, a step for turning on the large screen display unit 205 when it is off is inserted between step S148 and step S150. Also, the flow in FIG. 23 can be adopted in the eleventh embodiment in FIG. 20 by omitting step S132.

  FIG. 24 is a perspective view showing Example 13 of the mobile phone according to the embodiment of the present invention. FIG. 24A shows a state in which a transmission / reception unit 1281 described later is integrated with the mobile phone 1201, and FIG. 24B shows a state in which the transmission / reception unit 1281 is separated. The mobile phone 1201 according to the thirteenth embodiment has a state in which the cartilage conduction vibrating portion 1226 is arranged on the side surface 1007 of the mobile phone 1201 in the state of FIG. This is the same as the eleventh and twelfth embodiments. Note that the thirteenth embodiment is based on a so-called smartphone having a large-screen display unit 205 having a GUI function, based on an integrated type having no movable parts as in the eleventh and twelfth embodiments as a mobile phone. Is configured as Since the structure has many points in common, the corresponding parts are denoted by the same reference numerals as in Example 12 and description thereof is omitted. In the thirteenth embodiment as in the eleventh and twelfth embodiments, the “upper portion” does not mean the separated upper portion but the upper portion of the integrated structure.

  Example 13 Example 22 (A) of Example 12 except that the cartilage conduction vibrating unit 1226 and the transmitting unit 1223 are arranged on the right side in FIG. 24 in the state of FIG. This is the same configuration as. However, when the large-screen display unit 205 is visible as shown in FIG. 24, the cartilage conduction vibrating unit 1226 is applied to the tragus of the left ear. Then, in order to apply the cartilage conduction vibration unit 1226 to the tragus of the right ear, the cartilage conduction vibration unit 1226 faces the left ear by switching the mobile phone 1201 so that it faces down.

  The thirteenth embodiment differs from the twelfth embodiment in that a transmission / reception unit 1281 including a cartilage conduction vibration unit 1226 and a transmission unit 1223 can be separated from the mobile phone 1201 as shown in FIG. The attachment / detachment of the transmission / reception unit 1281 from the mobile phone 1201 can be performed by operating the attachment / detachment lock button 1283. The transmission / reception unit 1281 further includes a cartilage conduction vibration unit 1226 including a power supply unit, a control unit 1239 for the transmission unit 1223, and a transmission / reception operation unit 1209. The transmission / reception unit 1281 further includes a short-range communication unit 1287 such as Bluetooth (registered trademark) that can wirelessly communicate with the mobile phone 1201 by radio waves 1285, and the user's voice and cartilage conduction vibration picked up from the transmission unit 1223. The information about the contact state of the unit 1226 with the ear is transmitted to the mobile phone 1201, and the cartilage conduction vibration unit 1226 is vibrated based on the audio information received from the mobile phone 1201.

  The transmission / reception unit 1281 separated as described above functions as a pencil-type transmission / reception unit, and a telephone call is possible by freely holding the cartilage conduction vibrating portion 1226 and contacting the tragus of the right or left ear. is there. In addition, by increasing the contact pressure to the tragus, the effect of conducting the ear plug bone can be obtained. Further, in the separated transmission / reception unit 1281, the user can hear sound by cartilage conduction even if any surface or tip around the long axis of the cartilage conduction vibrating unit 1226 is applied to the ear. Further, the transmission / reception unit 1281 is usually housed in the mobile phone 1201 as shown in FIG. 24 (A) and appropriately separated as shown in FIG. 24 (B), or as shown in FIG. 24 (B). In a separated state, for example, the mobile phone 1201 is stored in an inner pocket or bag, and the transmission / reception unit 1281 is inserted in an outer pocket on the chest like a pencil. It is also possible to use the unit 1281 alone. Note that the cartilage conduction vibration unit 1226 can also function as a vibrator for receiving a call.

  The pencil type transmission / reception unit 1281 as in the thirteenth embodiment is not limited to the case where the pencil type transmission / reception unit 1281 is configured in combination with a dedicated mobile phone 1201 having a storage unit. For example, it can be configured as an accessory of a general mobile phone having a short-range communication function such as Bluetooth (registered trademark).

  FIG. 25 is a perspective view showing Example 14 of the mobile phone according to the embodiment of the present invention. FIG. 25A shows a state in which a transmission / reception unit 1381 described later is housed in the mobile phone 1301, and FIG. 25B shows a state in which the transmission / reception unit 1381 is pulled out. The mobile phone 1301 according to the fourteenth embodiment has a state in which the cartilage conduction vibration unit 1326 is arranged on the side surface 1007 of the mobile phone 1301 in the state of FIG. This is the same as the eleventh to thirteenth embodiments. The fourteenth embodiment is based on an integrated type mobile phone similar to that of the eleventh to thirteenth embodiments without a movable part, and is a so-called smartphone having a large-screen display unit 205 having a GUI function. Is configured as Since the structure has many points in common, the corresponding parts are denoted by the same reference numerals as in the thirteenth embodiment, and description thereof is omitted. In the fourteenth embodiment as in the eleventh to thirteenth embodiments, the “upper portion” does not mean the separated upper portion but the upper portion of the integrated structure.

  Embodiment 14 also has the same configuration as that of Embodiment 13 in FIG. 24A in the state of FIG. The fourteenth embodiment differs from the thirteenth embodiment in that the transmission / reception unit 1381 communicates with the mobile phone 1301 by wire instead of wirelessly, as shown in FIG. The attachment / detachment of the transmission / reception unit 1381 to / from the mobile phone 1301 can be performed by operating the attachment / detachment lock button 1283 as in the thirteenth embodiment. In the transmission / reception unit 1381, a cable 1339 is connected between the cartilage conduction vibration unit 1326 and the transmission unit 1323 and between the transmission unit 1323 and the mobile phone 1301. In the stored state of FIG. 25A, a portion of the cable 1339 between the cartilage conduction vibrating portion 1326 and the transmitting portion 1323 is stored in the groove of the side surface 1007 and the transmitting portion 1323 is When the transmitting unit 1323 is housed, the portion between the mobile phones 1301 is automatically wound inside the mobile phone 1301 by a spring. Note that the transmission section 1323 is provided with a remote control operation section for operations at the time of calling and receiving. As described above, in the fourteenth embodiment, the voice of the user picked up from the transmitting unit 1323 and the information on the contact state of the cartilage conduction vibrating unit 1326 with the ear are transmitted to the mobile phone 1301 by wire, and The cartilage conduction vibrating unit 1326 is vibrated based on voice information received from the telephone 1301 by wire.

  The transmitting / receiving unit 1381 pulled out as shown in FIG. 25B is used by hooking it on the lower cartilage at the entrance of the external auditory canal so that the portion of the cartilage conduction vibrating portion 1326 touches the tragus. In this state, since the transmitting section 1323 is located near the mouth, the voice of the user can be picked up. In addition, by increasing the contact pressure to the tragus by holding the portion of the cartilage conduction vibrating portion 1326, the osteocontraction effect can be obtained. Further, the transmission / reception unit 1381 is usually used as shown in FIG. 25B in addition to the usage method of being housed in the mobile phone 1301 as shown in FIG. With the receiving unit 1381 pulled out, for example, the mobile phone 1301 can be stored in an inner pocket or the like, and the cartilage conduction vibrating portion 1326 of the transmitting / receiving unit 1381 can be kept hooked on the ear. The cartilage conduction vibrating section 1326 can also function as a vibrator for incoming calls in the same manner as in the thirteenth embodiment.

  The wired earphone type transmission / reception unit 1381 as in the fourteenth embodiment is not limited to the case where the transmission / reception unit 1381 is configured in combination with a dedicated mobile phone 1301 having a storage unit. For example, it can be configured as an accessory of a general mobile phone having an external earphone microphone connection terminal.

  The various features shown in each of the above embodiments are not necessarily unique to each embodiment, and the features of each embodiment may be appropriately combined with the features of other embodiments as long as the advantages can be utilized. They can be combined or rearranged.

  Further, the implementation of the various features shown in each of the above embodiments is not limited to the above embodiments, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, the arrangement of the cartilage conduction vibrating portion on the side surface with respect to the display surface in the eleventh to fourteenth embodiments facilitates contact with the tragus by transmitting audio information from the tragus by cartilage conduction, Since the conduction point of the sound information can be the tragus, it is possible to realize a listening posture without a sense of incongruity, which is similar to a conventional telephone for listening by ear. In addition, the sound transmission by cartilage conduction is suitable for placement on the side, since there is no need to form a closed space in front of the ear canal opening unlike air conduction. Furthermore, since sound information is transmitted by cartilage conduction, the rate of occurrence of air conduction due to vibration of the vibrating body is small, and even if the cartilage conduction vibrating part is arranged on the side of a narrow mobile phone, substantial external transmission is achieved. Sound can be transmitted into the user's ear canal without sound leakage. This means that in cartilage conduction, sound energy is transmitted by contact with cartilage, rather than entering the ear canal as air-conducted sound, after which the vibration of the tissue of the ear produces sound inside the ear canal Because. Therefore, the adoption of the cartilage conduction vibrating part in the eleventh to fourteenth embodiments can be performed on the side surface with respect to the display surface without fear that the adjacent person hears the reception sound due to sound leakage and bothers or leaks privacy. The effect is great also in arranging the sound information output unit.

  However, from the viewpoint that the display surface can be prevented from being stained due to the contact of the ear or the cheek when listening to the audio information, the arrangement on the side surface with respect to the display surface is different from the audio information output unit to be arranged. Is not limited to the case where is a cartilage conduction vibration part. For example, the audio information output unit may be an air-conducting earphone, and may be provided on a side surface with respect to the display surface. The audio information output unit may be a bone in front of the ear (zygomatic arch) or a bone after the ear (breast ridge) or a bone conduction vibrating unit applied to the forehead, and may be arranged on a side surface of the display surface. Is also good. Even in the case of these audio information output units, by arranging them on the side surfaces with respect to the display surface, the display surface does not come into contact with the ears and cheeks when listening to audio information. Also in these cases, when the arrangement of the earphones and the bone conduction vibration unit is limited to one side surface, the microphones can be arranged on the side surface with respect to the display surface as in the twelfth to fourteenth embodiments. Further, in the same manner as in the eleventh to fourteenth embodiments, when talking with the earphone in contact with the ear in the posture as shown in FIG. 21, or when talking with the bone conduction vibrating part against the bones before and after the ear. In the above, by making the display surface a privacy protection display, it is possible to prevent the display including the privacy information from being seen by others before, after, or on the left and right.

  FIG. 26 is a system configuration diagram of Example 15 according to the embodiment of the present invention. The fifteenth embodiment is configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with the mobile phone 1401. The fifteenth embodiment has the same system configuration as the thirteenth embodiment in which the transmission / reception unit 1281 is separated from the mobile phone 1201 as shown in FIG. And description thereof is omitted unless otherwise required. Note that, similarly to the mobile phone 1201 of the thirteenth embodiment, the mobile phone 1401 is not limited to a case specially configured to be used in combination with a transmission / reception unit. It may be configured as a general mobile phone having a distance communication function. In this case, the transmission / reception unit is configured as an accessory of such a general mobile phone 1401 as in the thirteenth embodiment. The details of these two cases will be described later.

  The fifteenth embodiment differs from the thirteenth embodiment in that the transmission / reception unit is not a pencil type as in the thirteenth embodiment but a headset 1481. The transmission / reception unit 1481 has a cartilage conduction vibration unit 1426 and a transmission unit 1423 having a piezoelectric bimorph element and the like, and has a control unit 1439 including a power supply unit for the cartilage conduction vibration unit 1426 and the transmission unit 1423. That is, and having the transmission / reception operation unit 1409 is similar to that of the thirteenth embodiment. Further, the transmission / reception unit 1481 has a short-range communication unit 1487 such as Bluetooth (registered trademark) capable of wirelessly communicating with the mobile phone 1401 by radio waves 1285, and transmits a user's voice picked up from the transmission unit 1423 and cartilage conduction. The transmission of the information on the contact state of the vibration unit 1426 to the ear to the mobile phone 1401 and the vibration of the cartilage conduction vibration unit 1426 based on the voice information received from the mobile phone 1401 are also the same as those in the thirteenth embodiment.

  Next, a configuration unique to the fifteenth embodiment will be described. The headset 1481 is attached to the right ear 28 by the ear hook 1489. The headset 1481 has a movable portion 1491 held by an elastic body 1473, and the cartilage conduction vibrating portion 1426 is held by the movable portion 1491. Then, in a state where the headset 1481 is attached to the right ear 28 by the ear hook 1489, the cartilage conduction vibration unit 1426 is configured to contact the tragus 32. The elastic body 1473 allows the movable portion 1491 to bend in the direction of the tragus 32, and also functions as a cushioning material for the cartilage conduction vibrating portion 1426. The cartilage conduction vibrating part 1426 is protected.

  In the state of FIG. 26, sound information can be heard by normal cartilage conduction, but when sound information is difficult to hear due to environmental noise, the movable part 1491 is bent by pushing it from the outside, and the vibration part for cartilage conduction is used. Pressing 1426 more strongly against tragus 32 causes tragus 32 to close the ear canal. As a result, the ear plug bone conduction effect described in the other embodiments is generated, and audio information can be transmitted with a louder sound. Further, by closing the ear hole with the tragus 32, environmental noise can be cut off. Also, based on the mechanical detection of the bending state of the movable part 1491, the phase of the information of the own voice picked up from the transmitting part 1423 is inverted and transmitted to the cartilage conduction vibrating part 1426 to cancel the own voice. The effects thereof have been described in the other embodiments, so the details are omitted.

  FIG. 27 is a system configuration diagram of Example 16 according to the embodiment of the present invention. The sixteenth embodiment is also configured as a headset 1581 as a transmission / reception unit for the mobile phone 1401 in the same manner as the fifteenth embodiment, and forms a mobile phone system together with the mobile phone 1401. The sixteenth embodiment has a lot in common with the fifteenth embodiment. Therefore, common portions are denoted by common reference numerals, and description thereof will be omitted unless necessary. As described in the fifteenth embodiment, the mobile phone 1401 may be either a specially configured mobile phone or a general mobile phone. These two cases will be described later.

  Example 16 differs from Example 15 in that the entire movable portion 1591 is made of an elastic material (silicone-based rubber, a mixture of silicone-based rubber and butadiene-based rubber, natural rubber, or an elastic material whose acoustic impedance is similar to otic cartilage). (A structure in which air bubbles are sealed). Further, the cartilage conduction vibrating portion 1526 having a piezoelectric bimorph element or the like is embedded in the movable portion 1591 in the same manner as in the eighth embodiment. With such a configuration, the movable portion 1591 can be bent toward the tragus 32 side including the cartilage conduction vibrating portion 1526 by its own elasticity. Although not shown for simplicity, circuit parts such as the cartilage conduction vibration unit 1526 and the control unit 1439 are connected by the same connection line as the flexible connection line 769 in FIG. 17C.

  In Example 16, the movable portion 1591 is in contact with the tragus 32 in the state of FIG. 27, and sound information from the cartilage conduction vibrating portion 1526 is transmitted to the tragus 32 by cartilage conduction through the elastic material of the movable portion 1591. Conducted. The effects of this configuration are the same as those described in the fifth to tenth embodiments. Furthermore, when it is difficult to hear sound information due to environmental noise, the movable part 1591 is bent by pushing it from the outside, and the cartilage conduction vibrating part 1526 is pressed against the tragus 32 more strongly, so that the tragus 32 closes the ear canal. To close it. As a result, an ear plug bone conduction effect is produced in the same manner as in the fifteenth embodiment, and audio information can be transmitted with a louder sound. As in the fifteenth embodiment, environmental noise can be cut off by closing the ear hole with the tragus 32. Also, based on the mechanical detection of the bending state of the movable portion 1591, the phase of the information of the own voice picked up from the transmitting unit 1423 is inverted and transmitted to the cartilage conduction vibrating unit 1526, so that the own voice can be canceled. Same as Example 15.

  Furthermore, in the sixteenth embodiment, the cartilage conduction vibrating portion 1526 is embedded in the movable portion 1591, and therefore, the elastic material forming the movable portion 1591 is hardened by the mechanical shock applied to the headset 1581. It functions as a cushioning material for protecting the cartilage conduction vibrating portion 1526 from the mechanical shock to the movable portion 1591 itself as well as protecting the movable portion 1591 itself.

  FIG. 28 is a block diagram of the sixteenth embodiment. The same parts as those in FIG. Also, since the configuration of the block diagram has many parts in common with the fourth embodiment, corresponding parts are denoted by the same reference numerals as those parts. The description of these same or common parts will be omitted unless particularly necessary. In Embodiment 16, the reception processing unit 212 and the earphone 213 in FIG. 28 correspond to the reception unit 13 in FIG. 27, and the transmission processing unit 222 and the microphone 223 in FIG. 28 correspond to the transmission unit 23 in FIG. Equivalent to. Similarly to the fourth embodiment, the transmission processing unit 222 transmits a part of the operator's voice picked up from the microphone 223 to the reception processing unit 212 as a side tone, and the reception processing unit 212 By superimposing the operator's own side tone on the voice of the other party and outputting the superimposed side tone to the earphone 213, the balance between bone conduction and air conduction of the user's voice while the mobile phone 1401 is in contact with the ear is made natural. Close.

  The block diagram of the sixteenth embodiment in FIG. 28 is different from the block diagram of the fourth embodiment in FIG. 8 in that the mobile phone 301 in the fourth embodiment in FIG. Is divided into a headset 1581 which forms the following. That is, FIG. 28 corresponds to a block diagram in the case where the mobile phone 1401 is specially configured to be used in combination with the headset 1581 in the sixteenth embodiment.

  More specifically, in FIG. 28, the output of the phase adjustment mixer unit 236 is wirelessly transmitted to the outside by the short-range communication unit 1446 such as Bluetooth (registered trademark). The short-range communication unit 1446 also inputs the audio signal wirelessly received from the external microphone to the transmission processing unit 222. Further, although illustration and description are omitted in other embodiments, FIG. 28 shows a power supply unit 1448 having a storage battery for supplying power to the entire mobile phone 1401.

  On the other hand, the configuration of the headset 1581 includes a short-range communication unit 1487 that communicates with the short-range communication unit 1446 of the mobile phone 1401 by radio waves 1285, and a power supply unit 1548 that supplies power to the entire headset 1581. The power supply unit 1548 supplies power using a replaceable battery or a built-in storage battery. Also, the control unit 1439 of the headset 1581 causes the mobile phone 1401 to wirelessly transmit the voice picked up by the transmitting unit (microphone) 1423 from the short-range communication unit 1487, and based on the voice information received by the short-range communication unit 1487. , And controls the driving of the cartilage conduction vibration unit 1526. Further, control unit 1439 transmits an incoming call receiving operation or a calling operation by operation unit 1409 from short-range communication unit 1487 to mobile phone 1401. The bending detection unit 1588 mechanically detects the bending state of the movable unit 1591, and the control unit 1439 transmits the bending detection information from the short-range communication unit 1487 to the mobile phone 1401. The bending detection unit 1588 can be constituted by a switch that is mechanically turned on when the bending angle reaches a predetermined angle or more, for example. The control unit 239 of the mobile phone 1401 controls the phase adjustment mixer unit 236 based on the bending detection information received by the short-range communication unit 1446, and controls the phase adjustment mixer unit 236 transmitted from the transmission unit (microphone) 1423 to the transmission processing unit 222. It is determined whether or not the signal of waveform inverting section 240 based on voice is added to the voice information from reception processing section 212.

  FIG. 29 is a block diagram in the case where the mobile phone 1401 is configured as a general mobile phone and the headset 1581 is configured as its accessory in the sixteenth embodiment of FIG. 27. In order to avoid confusion with FIG. A description will be given of a seventeenth embodiment. FIG. 29 has many configurations in common with FIG. 28, and therefore, the same portions are denoted by the same reference numerals as in FIG. 28, and description thereof will be omitted unless particularly necessary.

  As described above, in the seventeenth embodiment in FIG. 29, the mobile phone 1601 is configured as a general mobile phone having a short-distance communication function using Bluetooth (registered trademark) or the like. Specifically, the short-range communication unit 1446 inputs the same audio information from the external microphone as that input from the microphone 223 to the transmission processing unit 222 and the same audio information as output to the earphone 213. Is output to the outside. The control unit 239 switches between audio information input / output to / from the outside through the short-range communication unit 1446 and the internal microphone 223 and earphone 213. As described above, in the seventeenth embodiment of FIG. 29, the functions of the sound quality adjustment unit 238, the waveform inversion unit 240, and the phase adjustment mixer unit 236 in the sixteenth embodiment of FIG. 28 are shifted to the headset 1681 side.

  Corresponding to the above, the configuration of the headset 1681 in the seventeenth embodiment of FIG. 29 differs from that of the sixteenth embodiment in FIG. 28 in the following points. The received voice information received by the short-range communication unit 1487 under the control of the control unit 1639 of the headset 1681 is input to the phase adjustment mixer unit 1636, and the voice information from the waveform inverting unit 1640 can also be input. Be composed. The phase adjusting mixer 1636 mixes the audio information from the waveform inverting unit 1640 with the received audio information and drives the cartilage conduction vibration unit 1626 as necessary. More specifically, a part of the operator's voice picked up from the transmission unit (microphone) 1423 is input to the sound quality adjustment unit 1638, and the user should transmit the sound to the cochlea from the cartilage conduction vibration unit 1628 including the cartilage conduction vibration unit 1626. The sound quality of the voice is adjusted to the sound quality similar to the operator's own voice transmitted from the vocal cords to the cochlea by internal conduction when the ear plug bone conduction effect occurs, and both are effectively canceled. Then, waveform inverting section 1640 inverts the waveform of the voice whose tone has been adjusted in this way, and outputs the inverted voice to phase adjusting mixer section 1636 as necessary.

  Explaining specific mixing control, the phase adjustment mixer section 1636 corresponds to a state where the bending angle of the movable section 1591 detected by the bending detection section 1588 reaches a predetermined angle or more, and the ear hole is closed by the tragus pushed by this. In this case, the output from the waveform inverting unit 1640 is mixed according to an instruction from the control unit 1639 to drive the cartilage conduction vibration unit 1628. As a result, an excessive voice of the user during the generation of the ear plug bone conduction effect is canceled, and the sense of discomfort is alleviated. At this time, the degree of cancellation is adjusted so that one's own voice equivalent to the side tone is left without being canceled. On the other hand, when the bend detection unit 1588 does not detect a bend of a predetermined amount or more, it corresponds to a state in which the ear hole is not closed by the tragus and the ear plug bone conduction effect does not occur. Based on the instruction of unit 1639, mixing of the self-voiced waveform inverted output from waveform inverting unit 1640 is not performed. In the same manner as in the fourth embodiment, in the seventeenth embodiment of FIG. 29, the positions of the sound quality adjustment unit 1638 and the waveform inversion unit 1640 may be reversed. Further, the sound quality adjustment unit 1638 and the waveform inversion unit 1640 may be integrated as a function in the phase adjustment mixer unit 1636. Note that the control unit 1639 transmits an incoming call receiving operation or an outgoing call operation by the operation unit 1409 from the short-range communication unit 1487 to the mobile phone 1601, as in the sixteenth embodiment.

  The block diagrams of FIGS. 28 and 29 are applicable not only to the configuration of the system diagram of FIG. 27 but also to the system diagram of the fifteenth embodiment of FIG. In addition, if the bending detecting unit 1588 is replaced with the pressing sensor 242 as shown in FIG. 8, the present invention can be applied to the embodiment 13 in FIG. 24 or the embodiment 14 in FIG. However, in the case where the transmission / reception unit 1281 is combined with the mobile phone 1201 as shown in FIG. . In the state of FIG. 24A, wireless communication between the mobile phone 1201 and the transmission / reception unit 1281 by the short-range communication unit is automatically switched to communication via such a contact unit. Further, in the case of reading as Example 14, instead of the short-range communication unit, a connector contact for connecting the two by wire is provided in the mobile phone 1301 and the transmission / reception unit 1381.

  FIG. 30 is a flowchart of the operation of the control unit 1639 of the headset 1681 in Embodiment 17 in FIG. The flow in FIG. 30 starts when the main power supply is turned on by the operation unit 1409, and performs an initial startup and a function check of each unit in step S162. Next, in step S164, a short-range communication connection with the mobile phone 1601 is instructed, and the process proceeds to step S166. When short-range communication is established based on the instruction in step S164, the headset 1681 is always connected to the mobile phone 1601 unless the main power is turned off thereafter. In step S166, it is checked whether or not short-range communication with the mobile phone 1601 has been established. If the establishment is confirmed, the process proceeds to step S168.

  In step S168, it is checked whether an incoming signal from the mobile phone 1601 has been transmitted through short-range communication. If there is an incoming call, the process proceeds to step S170, and the cartilage conduction vibration unit 1626 is driven to perform incoming vibration. The incoming vibration may be a frequency in the audible range, or may be a low-frequency range having a large amplitude at which the tragus 32 can feel a vibration. Next, in step S172, it is checked whether or not the incoming signal has been stopped due to a call stopping operation or the like of the caller, and if not, the process proceeds to step S174 to check whether or not a receiving operation has been performed by the operation unit 1409. If there is a receiving operation, the flow shifts to step S176. On the other hand, if there is no reception operation in step S174, the flow returns to step S170, and thereafter, the loop from step S170 to step S174 is repeated unless the incoming vibration of the cartilage conduction vibration unit 1626 stops or the reception operation is performed. .

  On the other hand, if an incoming signal is not detected in step S168, the process proceeds to step S178, and it is checked whether the operation unit 1409 has performed a one-touch calling operation to a registered destination. When the call operation is detected, the process proceeds to step S180, and the call operation is transmitted to the mobile phone 1601 to make a call, and a signal indicating that the telephone connection has been established by the response from the other party is transmitted to the mobile phone 1601. Check if it was transmitted from Then, when the establishment of the telephone connection is confirmed in step S180, the process proceeds to step S176.

  In step S176, the cartilage conduction vibration unit 1626 is turned on for receiving voice information, and the microphone 1423 is turned on for transmitting in step S182, and the process proceeds to step S184. In step S184, it is checked whether bending of the movable portion 1591 at a predetermined angle or more has been detected. When the bending is detected, the process proceeds to step S186, where the waveform inversion signal of the own voice is added to the cartilage conduction vibration unit 1626, and the process proceeds to step S188. On the other hand, if the bend beyond the predetermined angle is not detected in step S184, the process proceeds to step S190, and the process proceeds to step S188 without adding the waveform inversion signal of the own voice to the cartilage conduction vibration unit 1626. In step S188, it is checked whether or not a signal indicating that the call state has been cut has been received from the mobile phone 1601. If the call has not been cut, the process returns to step S176, and until the call cut is detected in step S188. Steps S176 to S188 are repeated. This corresponds to the occurrence and disappearance of the ear plug bone conduction effect based on the bending of the movable portion 1591 during a call.

  On the other hand, if it is detected in step S188 that the call disconnection signal has been received from the mobile phone 1601, the process proceeds to step S192, in which the reception by the cartilage conduction vibration unit 1626 is turned off and the transmission by the microphone 1423 is turned off. The process moves to S194. In step S194, it is checked whether the non-communication state has continued for a predetermined time or longer. In step S196, a transition is made to a power saving standby state such as reducing the clock frequency to the minimum level necessary for maintaining the standby state of the short-range communication unit 1487, and an incoming signal is received from the mobile phone 1601 or the operation unit 1409 is issued. In response to the call operation, a process for enabling an interrupt for returning the short-range communication unit 1487 to the normal communication state is performed. After such processing, the flow shifts to step S198. On the other hand, if a non-communication state for a predetermined time or more is not detected in step S194, the process directly proceeds to step S198. If the establishment of short-range communication cannot be confirmed in step S166, or if the calling operation is not detected in step S178, or if the establishment of the telephone connection cannot be confirmed in step S180, the process directly proceeds to step S198.

  In step S198, it is checked whether or not the main power has been turned off by the operation unit 1409. If the main power has been turned off, the flow ends. On the other hand, if the main power supply is not detected, the flow returns to step S166. Unless the main power supply is turned off, steps S166 to S198 are repeated to respond to various state changes of the headset 1681.

  The flow of FIG. 30 is applicable not only to the configuration of the system diagram of FIG. 27 but also to the system diagram of the fifteenth embodiment of FIG. Further, if “bending detection” in step S184 is replaced with detection of the presence / absence of the “ear plug bone conduction effect” occurrence state as in step S52 in FIG. 10, the embodiment 13 in FIG. 24 or the embodiment 14 in FIG. Applicable.

  FIG. 31 is a flowchart of the control unit of the headset configured to perform the bending detection in a software manner instead of the one in which the bending detection is performed by a mechanical switch in the seventeenth embodiment of FIG. In order to avoid this, a description will be given of an embodiment 18. In FIG. 31, steps common to those in FIG. 30 are denoted by the same step numbers, and a description thereof will be omitted unless necessary. In FIG. 31, different portions are indicated by bold frames and bold characters, and these portions will be mainly described. Specifically, in the eighteenth embodiment, it is assumed that the cartilage conduction vibration unit 1626 is a piezoelectric bimorph element, and the signal connecting the phase adjustment mixer unit 1636 and the cartilage conduction vibration unit 1626 according to the fourth embodiment in FIG. A signal appearing on the line is monitored, and a change in a signal appearing on the cartilage conduction vibrating portion (piezoelectric bimorph element) 1626 is detected by a distortion based on an operation shock at the moment of bending or returning from the bending of the movable portion 1591. Then, the bending state is detected by processing the signal change in a software manner.

  31 will be described based on the above premise. First, step S200 collectively illustrates steps S170 to S174, S178, and S180 in FIG. 30. Are the same. If a telephone connection is established based on a reception operation for an incoming call or a response of the other party to a call, the process proceeds to step S176, and if there is no telephone connection, the process proceeds to step S198.

  Steps S202 to S210 are steps related to bending detection, and when the process proceeds from step S182 to step S202, first, the signal appears at an input terminal of the cartilage conduction vibration unit 1626 (a signal line connecting the phase adjustment mixer unit 1636 and the cartilage conduction vibration unit 1626). Sample the signal. Then, in step S204, the cartilage conduction part drive output from the control unit 1639 to the phase adjustment mixer unit 1636 is sampled at the same timing. Next, in step S206, a difference between these sampled values is calculated, and in step S208, it is detected whether the calculated difference is equal to or more than a predetermined value. This function corresponds to the function of the pressing sensor 242 in FIG. 9, but the pressing state is continuously detected by the pressing sensor 242 in FIG. 9, whereas the system shown in FIG. The change in the bending state due to the operation shock is captured.

  If it is detected in step S208 that the difference between the two sampling values is equal to or larger than a predetermined value, the process proceeds to step S210. At the stage of step S208, it is not known whether the difference between the two sampling values is greater than or equal to a predetermined value due to the bending or the return from the bending. However, in step S210, after the cartilage conduction vibration unit 1626 is turned on in step S176 based on the difference occurrence history, it is checked whether or not the difference has occurred an odd number of times. If it is an odd number, the process proceeds to step S186, and if it is an even number, the process proceeds to step S190. Since the bending or the return from the bending of the movable portion 1591 always occurs alternately, whether or not the self-voice waveform inversion signal is added is switched every time there is an operation shock as described above. If the difference count is reversed due to a malfunction, the difference occurrence history can be reset by the operation unit 1409.

  Step S212 collectively illustrates steps S194 and S196 in FIG. 30, and is the same in content. As described above, in the eighteenth embodiment, in the same manner as in the fourth embodiment and the like, by detecting the bending of the movable portion 1591 using the sensor function of the cartilage conduction vibrating portion 1626 itself, the effect of the ear plug bone conduction effect is obtained. The occurrence state is determined. Note that the flow of FIG. 31 is applicable not only to the configuration of the system diagram of FIG. 27 but also to the system diagram of the fifteenth embodiment of FIG. In addition, when the cartilage conduction vibrating portion is held by an elastic body as in Examples 5 to 10, and the distortion of the cartilage conduction vibrating portion does not continue while the ear plug bone conduction effect occurs, the ear of FIG. It is possible to adopt a method for detecting the occurrence of a skeletal conduction effect.

  FIG. 32 is a system configuration diagram of Example 19 according to the embodiment of the present invention. The nineteenth embodiment is also configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with the mobile phone 1401. In the nineteenth embodiment, as shown in FIG. 32, the transmission and reception unit is configured as glasses 1781. The nineteenth embodiment has the same system configuration as that of the fifteenth embodiment. Therefore, the common parts are assigned the same reference numerals, and the configuration is the same as that of the fifteenth embodiment unless otherwise described. . Note that also in the nineteenth embodiment, the mobile phone 1401 is specially configured to be used in combination with the glasses 1781 forming the transmission / reception unit, and is configured as a general mobile phone having a short-distance communication function. Any of them may be used. In the latter case, the glasses 1781 are configured as accessories of the mobile phone 1401 as in the fifteenth embodiment.

  In Example 19, as shown in FIG. 32, the movable portion 1791 is rotatably attached to the vine portion of the glasses 1781. In the illustrated state, the cartilage conduction vibrating portion 1726 is attached to the tragus 32 of the right ear 28. In contact. When the movable portion 1791 is not used, the movable portion 1791 can be rotated and retracted to a position along the vine of the glasses 1781 as indicated by a chain line 1792. Even in this retracted state, the cartilage conduction vibrating section 1726 can vibrate at a low frequency, so that the incoming call can be recognized by feeling the vibration of the vine of the glasses 1781 with the face. In addition, a transmitting section 1723 is disposed in front of the crane of the glasses 1781. In addition, a control unit 1739 including a power supply unit is arranged at the crane portion of the glasses 1781 to control the cartilage conduction vibration unit 1726 and the transmission unit 1723. Further, a short-distance communication unit 1787 such as Bluetooth (registered trademark) capable of wireless communication with the mobile phone 1401 by radio waves 1285 is arranged at the crane portion of the glasses 1781, and the user's voice picked up from the transmission unit 1723 is carried. In addition to transmitting to the telephone 1401, it is possible to vibrate the cartilage conduction vibrating section 1726 based on audio information received from the mobile phone 1401. A transmission / reception operation unit 1709 is provided at the rear end of the crane of the glasses 1781. In this position, since the vine of the glasses 1781 hits the bone (breast protruding portion) behind the ear 28, the vine is supported in a backing state, and the transmission / reception such as pressing from the front side of the vine without deforming the glasses 1781 is performed. The operation can be easily performed. Note that the arrangement of the above elements is not limited to the above, and for example, all the elements or a part thereof may be collectively arranged in the movable portion 1791 as appropriate.

  The elastic portion 1773 is interposed in the middle of the movable portion 1791, and when sound information is hard to be heard due to environmental noise, the movable portion 1791 is pushed from the outside to bend it, and the cartilage conduction vibrating portion 1726 is more strongly listened. Pressing against the tragus 32 makes it easier for the tragus 32 to close the ear canal. As a result, the ear plug bone conduction effect described in the other embodiments is generated, and audio information can be transmitted with a louder sound. Also, based on the mechanical detection of the bending state of the movable part 1791, the phase of the information of the own voice picked up from the transmitting part 1723 is inverted and transmitted to the cartilage conduction vibrating part 1726 to cancel the own voice. These are common to the fifteenth embodiment.

  The block diagrams in FIGS. 28 and 29 can be applied to the nineteenth embodiment by replacing “headset” with “glasses”. 30 and 31 are also applicable to the nineteenth embodiment.

  FIG. 33 is a system configuration diagram of Example 20 according to the embodiment of the present invention. Embodiment 20 is also configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with the mobile phone 1401. The twentieth embodiment has the same system configuration as that of the nineteenth embodiment in FIG. 32. Therefore, common parts are denoted by common numbers, and description thereof is omitted unless otherwise required. Note that, in the twentieth embodiment, as in the nineteenth embodiment, the mobile phone 1401 is specially configured to be used in combination with the glasses 1881 forming the transmission / reception unit, and a general mobile phone having a short-range communication function. Any of the cases where it is configured as a mobile phone may be used. In the latter case, the glasses 1881 are configured as accessories of the mobile phone 1401 as in the nineteenth embodiment.

  The twentieth embodiment is different from the nineteenth embodiment in that the cartilage conduction vibrating portion 1826 is provided in an ear hook portion 1893 where the crane of the glasses 1881 hits the base of the ear 28. As a result, the vibration of the cartilage conduction vibrating portion 1826 is transmitted to the outer side 1828 of the cartilage at the base of the ear 28, generates air-conducted sound from the inner wall of the external auditory canal through the cartilage around the ear canal, and is transmitted to the eardrum. Some are transmitted directly to the inner ear through cartilage. The outer side 1828 of the cartilage at the base of the ear 28 against which the vine of the eyeglasses 1881 hits is close to the inner ear canal opening and is suitable for generating air conduction from the cartilage around the ear canal to the inside of the ear canal and conducting directly through the cartilage to the inner ear.

  The ear hanging portion 1893 is further provided with an ear pressing detecting portion 1888 at a portion corresponding to the back side of the earlobe. The ear-push detection unit 1888 mechanically detects a state in which the earlobe is pressed by placing a palm on the ear 28 to shield the external noise when it is loud. The information is transmitted from the communication unit 1787 to the mobile phone 1401. The ear-press detection unit 1888 can be constituted by, for example, a switch that is mechanically turned on when pressed by the back side of the earlobe. The control unit 239 of the mobile phone 1401 (in the case of using the configuration in FIG. 28) controls the phase adjustment mixer unit 236 based on the bending detection information received by the short-range communication unit 1446, It is determined whether or not to add the signal of waveform inverting section 240 based on the own voice transmitted to transmission processing section 222 via communication section 1446 to the voice information from reception processing section 212. Incidentally, the configuration relating to the countermeasure at the time of occurrence of the ear plug bone conduction effect can be configured similarly to the nineteenth embodiment with reference to FIG.

  FIG. 34 is a main part side view of Example 21 according to the embodiment of the present invention. Embodiment 21 is also configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with a mobile phone 1401 (not shown) as in Embodiment 20. Embodiment 21 has a system configuration similar to that of Embodiment 20 in FIG. 33, so common parts are assigned common numbers, and description thereof will be omitted unless otherwise required. More specifically, the transmission / reception unit of the twentieth embodiment is configured as special glasses, whereas the transmission / reception unit of FIG. Is different. Other configurations are common to the twentieth embodiment of FIG. In the twenty-first embodiment, similarly to the twentieth embodiment, a mobile phone 1401 (not shown) is specially configured to be used in combination with a spectacle attachment 1981 as a transmission / reception unit. May be configured as a general mobile phone having In the latter case, the eyeglass attachment 1981 is configured as an accessory of the mobile phone 1401, as in the twentieth embodiment.

  The eyeglass attachment 1981 is molded as a free-size elastic cover that can be put on the ear hooks 1900 of various sizes and shapes. The vibrating section 1926 contacts the upper side of the ear hook section 1900. This contact may be made directly or via an elastic film of the spectacle attachment 1981. For this purpose, it is desirable to select, as the elastic body, a material whose acoustic impedance is close to that of the ear cartilage. By the direct or indirect contact as described above, the vibration of the cartilage conduction vibrating portion 1926 is transmitted to the ear hook portion 1900, and the vibration is transmitted to the outside of the cartilage at the base of the ear 28. Then, air conduction sound is generated from the inner wall of the external auditory canal through the cartilage around the mouth of the external auditory canal and transmitted to the eardrum, and a part of the air-conducted sound is transmitted directly to the inner ear through the cartilage.

  The transmission unit 1723, the control unit 1739, the short-range communication unit 1787, the transmission / reception operation unit 1709, and the ear pressing detection unit 1888 provided on the glasses 1881 in the twentieth embodiment are respectively provided with the eyeglass attachments in the twenty-first embodiment of FIG. Although it is arranged in 1981, its function is common and description thereof is omitted. Although not shown, for example, when the eyeglass attachment 1981 is put on the right ear hanging portion 1900, a dummy cover molded of an elastic body having the same outer shape, material and weight is provided for the left ear hanging portion. , It is possible to maintain the left-right balance when wearing glasses. Since the spectacles attachment 1981 and the dummy cover are molded from an elastic body, the eyeglass attachment 1981 and the dummy cover can be arbitrarily attached to either of the left and right ear hanging portions with slight deformation. For example, contrary to the above, the eyeglass attachment 1981 can be put on the left ear hook, and the dummy cover can be put on the right ear hook. Therefore, it is not necessary to prepare the eyeglass attachment 1981 for the right ear and the left ear.

  FIG. 35 is a top view of Example 22 according to the embodiment of the present invention. The twenty-second embodiment is also configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with a mobile phone 1401 (not shown) as in the twenty-first embodiment. Embodiment 22 has a system configuration similar to that of Embodiment 21 in FIG. 34, and thus common portions are denoted by common numbers and description thereof will be omitted unless otherwise required. The transmission / reception unit of the twenty-second embodiment is also a spectacle attachment 2081 molded as a free-size elastic body cover that can be put on the ear hooks 1900 of various sizes and shapes in ordinary spectacles, similarly to the twenty-first embodiment. Be composed.

  The embodiment 22 in FIG. 35 differs from the embodiment 21 in FIG. 34 in that each component of the transmission / reception unit which is concentrated in the eyeglass attachment 1981 put on one ear hook 1900 in the embodiment 21 Are distributed to the left and right ear hooks 1900. More specifically, the spectacles attachment 2081 of the twenty-second embodiment includes a right elastic cover 2082, a left elastic cover 2084, and a glass cord / multi-purpose cable 2039 that connects them in a wired and communicable manner. Each component is distributed. For convenience of explanation, the elastic cover 2082 is used for the right ear and the elastic cover 2084 is used for the left ear. However, it is possible to cover the pair of elastic covers left and right in the ear hook portion 1900 respectively. is there.

  In the above basic configuration, the cartilage conduction vibration unit 1926, the transmission / reception operation unit 1709, and the ear pressing detection unit 1888 are arranged on the right elastic body cover 2082. As a result, the vibration of the cartilage conduction vibrating portion 1926 is transmitted to the cartilage around the mouth of the external auditory canal via the ear hook portion 1900 in the same manner as in the twenty-first embodiment. And part of it is transmitted directly to the inner ear through cartilage.

  On the other hand, a transmission unit 1723, a control unit 1739, and a short-range communication unit 1787 are arranged on the left elastic body cover 2084. The glass cord / multi-purpose cable 2039 is designed to be a glass cord for hanging the spectacles around the neck when the glasses are taken off. Wiring connecting each component of the receiving unit is passed. In addition, the right elastic cover 2082 and the left elastic cover 2084 are connected by the glass cord / cable 2039 to prevent one of them from being lost when detached from the glasses.

  FIG. 36 is a block diagram of Example 23 according to the embodiment of the present invention. Embodiment 23 is similar to Embodiment 19 or Embodiment 20, and includes eyeglasses 2181 configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with a mobile phone 1401 (not shown). Further, in the twenty-third embodiment, similarly to the twenty-second embodiment, the respective components as the transmission / reception unit are distributed and arranged in the right crane 2182 and the left crane 2184. The individual components and their functions can be understood according to those in the block diagram of the seventeenth embodiment in FIG. 29 and the top view of the twenty-second embodiment in FIG. 35. Description is omitted unless necessary. In Example 23 as well, the vibration of the cartilage conduction vibrating portion 1826 disposed on the right crane portion 2182 is transmitted to the outside of the cartilage at the base of the ear 28, and this vibrates the cartilage around the ostium of the ear canal to generate air generated from the inner wall of the ear canal. As the sound is transmitted to the eardrum, part of the cartilage conduction is transmitted directly to the inner ear through the cartilage.

  Embodiment 23 of FIG. 36 further has a configuration for visualizing a three-dimensional (3D) image received from the mobile phone 1401 by the lens unit 2186. The lens portion 2186 of the spectacles 2181 is provided with a right lens 2110 and a left lens 2114 which are original spectacles, and functions as normal spectacles. Further, when the short-range communication unit 1787 receives the 3D image information from the mobile phone 1401, the control unit 1639 instructs the 3D display driving unit 2115 to display the 3D image information, and the 3D display driving unit 2115 generates a right display unit 2118 based on this. And the left display unit 2122 displays a right-eye image and a left-eye image, respectively. These images are formed on the retinas of the right and left eyes by a right-eye light guide optical system 2129 and a left-eye light guide optical system 2141 including an imaging lens and a half mirror, respectively, so that a 3D image can be viewed. This 3D image will appear in a form superimposed or superimposed on the raw image entering the retina from the right lens 2110 and the left lens 2114.

  FIG. 37 is a system configuration diagram of Example 24 according to the embodiment of the present invention. Embodiment 24 is also configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with the mobile phone 1401. The transmission / reception unit according to the twenty-fourth embodiment is configured as an ear hanging unit 2281 employed for a hearing aid or the like, but has the same system configuration as the twentieth embodiment in FIG. 33 except for this point. Are given common numbers, and description thereof is omitted unless otherwise required. In addition, also in the twenty-fourth embodiment, similarly to the twentieth embodiment, the mobile phone 1401 is specially configured to be used in combination with the ear-hook unit 2281 forming the transmission / reception unit, and has a short-distance communication function. It may be any of those configured as a general mobile phone. In the latter case, the ear hanging unit 2281 is configured as an accessory of the mobile phone 1401 as in the twentieth embodiment.

  In the twenty-fourth embodiment, the cartilage conduction vibrating portion 2226 is disposed at a position corresponding to the rear portion of the outer side 1828 of the cartilage at the base of the ear 28. As a result, in the same manner as in Example 20, the vibration of the cartilage conduction vibrating portion 2226 is transmitted to the outer side 1828 of the cartilage at the base of the ear 28, and air conduction sound is generated from the inner wall of the external auditory canal through the cartilage around the mouth of the external auditory canal. And partly transmitted directly to the inner ear through cartilage. The outer side 1828 of the cartilage at the base of the ear 28 is close to the ostium of the ear canal inside, and is suitable for generating air conduction from the cartilage around the ostium of the ear canal to the inside of the ear canal and conducting the cartilage directly to the inner ear. When the transmission / reception unit is configured as the ear hanging unit 2281 as in the twenty-fourth embodiment, the degree of freedom in the arrangement of the cartilage conduction vibrating portion 2226 for contacting the outer side 1828 of the cartilage at the base of the ear 28 is large. In addition, the cartilage conduction vibrating portion 2226 can be arranged at an optimum position in consideration of the mounting layout and the vibration transmitting effect in the configuration of the transmitting / receiving unit. Accordingly, in the twenty-fourth embodiment, as in the twentieth embodiment, an arrangement may be adopted in which the cartilage conduction vibrating portion 2226 contacts the upper part of the outer side 1828 of the cartilage at the base of the ear 28.

  The ear hanging unit 2281 is provided with a transmission unit 1723, a control unit 1739, a short-range communication unit 1787, a transmission / reception talk operation unit 1709, and an ear pressing detection unit 1888 in the same manner as in the case of the glasses 1881 of the twentieth embodiment. However, since the functions are common, the description is omitted. In the case of the ear hanging unit 2281 of the twenty-fourth embodiment, the transmitting unit 1723 is arranged in front of the ear.

  FIG. 38 is a block diagram of Example 25 according to the embodiment of the present invention. Embodiment 25 is common to Embodiments 20 to 23 in that the cartilage conduction vibrating portions 2324 and 2326 are arranged on the ear hooks of the vine of the eyeglass-type device, and the vibration is transmitted to the outside of the cartilage at the base of the ear 28. However, instead of a transmission / reception unit of a mobile phone, it is configured as viewing glasses 2381 of a 3D television, and forms a 3D television viewing system together with the 3D television 2301. In the twenty-fifth embodiment, the stereo audio information can be viewed. The transmitted air is transmitted to the right eardrum by transmitting air to the right eardrum by vibrating the cartilage around the ostium of the ear canal, and a part of cartilage conduction is transmitted directly to the right inner ear through the cartilage. Similarly, the vibration of the cartilage conduction vibration part 2326 for the left ear arranged on the left crane part 2384 is transmitted to the outside of the cartilage at the base of the left ear via the contact part 2364, and this vibrates the cartilage around the mouth of the external auditory canal. As a result, the air-conducted sound generated from the inner wall of the ear canal is transmitted to the left eardrum, and a part of the cartilage conduction is transmitted directly to the left inner ear through the cartilage.

  Note that the viewing glasses 2381 are configured so that even a person wearing ordinary glasses can wear it from above, and in this case, the vibration of the cartilage conduction vibration unit 2324 for the right ear and the cartilage conduction vibration unit 2326 for the left ear is It is transmitted to the cartilage of the base of the left and right ears that are in direct contact via the contact portions 2363 and 2364, and is also transmitted to the ear hooks of the left and right vines of ordinary glasses, respectively. And indirectly to the cartilage at the base of the ear. The contact portions 2363 and 2364 are configured in such a manner as to provide suitable cartilage conduction to the cartilage at the base of the ear when the naked eye directly wears the viewing glasses 2381 or when wearing over ordinary glasses. You. This will be described later.

  The 3D television 2301 generates an audio signal from the stereo audio signal unit 2331 based on the control of the control unit 2339, and the infrared communication unit 2346 transmits the audio signal to the infrared communication unit 2387 of the viewing glasses 2381 using the infrared light 2385. The control unit 2339 of the viewing glasses 2381 causes the right audio drive unit 2335 and the left audio drive unit 2336 to output left and right audio signals based on the received audio signal, and outputs the right ear cartilage conduction vibration unit 2324 and the left ear cartilage conduction vibration. The part 2326 is vibrated. The infrared communication unit 2387, the control unit 2339, the right audio drive unit 2335, the left audio drive unit 2336, the shutter drive unit 2357, the right shutter 2358, and the left shutter 2359 described below are arranged in the main glasses unit 2386 together with the power supply unit 2348. Have been.

  On the other hand, the 3D television 2301 sends the video signal of the video signal unit 2333 to the display driver 2341 under the control of the control unit 2339, and causes the 3D screen 2305 including a liquid crystal display unit or the like to display a 3D image. The control unit 2339 further generates a synchronization signal from the 3D shutter synchronization signal unit 2350 in synchronization with the 3D image display. I do. The control unit 2339 of the viewing glasses 2381 controls the shutter driving unit 2357 based on the received synchronization signal, and opens the right shutter 2358 and the left shutter 2359 alternately. As a result, the right-eye image 2360 and the left-eye image 2362 alternately displayed on the 3D screen 2305 enter the right and left eyes in synchronization. As described above, in the twenty-fifth embodiment, the stereo sound signal for driving the cartilage conduction vibration unit and the 3D shutter synchronization signal are transmitted by infrared communication between the infrared communication units 2346 and 2387. These two signals are transmitted in parallel by time division or combining. Note that these communications are not limited to infrared communications, and may be short-range wireless communications as in other embodiments.

  FIG. 39 is a cross-sectional view of a main part of Example 25, and shows a cross section of the right vine portion 2382 in a state where normal glasses are worn and viewing glasses 2381 are mounted. FIG. 39A is a cross section of the right crane portion 2382 according to the twenty-fifth embodiment, and FIG. 39B is a cross section of a modification thereof. First, referring to FIG. 39 (A), a contact portion 2363 is provided in a portion which is hooked on the ear 28 below the right crane portion 2382. The contact portion 2363 is made of an elastic body whose acoustic impedance is similar to that of the ear cartilage, and the right ear cartilage conduction vibrating portion 2324 is held by the right crane portion 2382 so as to be wrapped therein. The cross section of the contact portion 2363 is provided with a groove for fitting the ear hook portion 2300 of the vine of ordinary glasses, as is apparent from FIG. This ensures reliable contact between the right crawl portion 2382 of the viewing glasses 2381 and the ear hook portion 2300 of the normal spectacle cradle, and the contact between the right heel portion 2382 and the ear hook portion 2300 due to the elasticity of the contact portion 2363. Prevents shaking due to vibration. In the state of FIG. 39 (A), the vibration of the cartilage conduction vibration part for right ear 2324 is transmitted to the outer side 1828 of the cartilage at the base of the right ear 28 which is in direct contact via the contact part 2363, and is usually Is transmitted to the ear hook portion 2300 of the right vine of the eyeglasses, and is also indirectly transmitted to the outer side 1828 of the cartilage at the base of the ear 28 via the ear hook portion 2300.

  On the other hand, when the naked eye directly wears the viewing glasses 2381, the entire contact portion 2363 directly contacts the outer side 1828 of the cartilage at the base of the right ear 28, and the vibration of the cartilage conduction vibration portion 2324 for the right ear is reduced. introduce. Since the outside of the contact portion 2363 is chamfered, even in this case, the right crane portion 2382 can be hung on the ear 28 without discomfort.

  Next, in the modified example of FIG. 39 (B), as is clear from the cross-sectional view, a contact portion 2363 is provided on a portion of the ear 28 below the right crane portion 2382 in the same manner as in FIG. 39 (A). Is provided. 39 (A), the contact portion 2363 is made of an elastic body whose acoustic impedance is similar to that of the ear cartilage, and the cartilage conduction vibrating portion 2324 for the right ear is wrapped in the right crane portion 2382 in the form thereof. Is held. As is clear from FIG. In the modified example, the cross-sectional shape of the contact portion 2363 is different, and a concave slope is provided instead of the groove. , And secure contact between the two is achieved, and the elasticity of the contact portion 2363 prevents the contact portion between the right crane portion 2382 and the ear hook portion 2300 from vibrating due to vibration. In the state of FIG. 39 (B), the vibration of the cartilage conduction vibrating portion for right ear 2324 is transmitted to the outer side 1828 of the cartilage at the base of the right ear 28 which is in direct contact via the contact portion 2363, and is normally Is transmitted to the ear hook portion 2300 of the right vine of the eyeglasses, and is also indirectly transmitted to the outer side 1828 of the cartilage at the base of the ear 28 via the ear hook portion 2300.

  On the other hand, when the naked eye directly wears the viewing glasses 2381, the entire contact portion 2363 directly contacts the outer side 1828 of the cartilage at the base of the right ear 28, and the vibration of the cartilage conduction vibration portion 2324 for the right ear is reduced. introduce. The outside of the contact portion 2363 is chamfered even in the case of the modification shown in FIG. 39 (B), so that even when the viewing glasses 2381 are directly worn, the right crane portion 2382 can be hung on the ear 28 without a sense of discomfort. As is clear from FIG. 39 (B), in cartilage conduction, it is important to make contact not with the facial bone inside the vine of the spectacles but with the ear cartilage below or outside the vine of the spectacles. Is determined for this purpose.

  As described above, in the twentieth to twenty-fifth embodiments, the vibration of the cartilage conduction vibrating portion 2324 is transmitted to the outside of the cartilage at the base of the ear, and the vibration is generated from the inner wall of the external auditory canal by vibrating the cartilage around the mouth of the external auditory canal. As the sound is transmitted to the eardrum, part of the cartilage conduction is transmitted directly to the right inner ear through the cartilage. Therefore, good conduction can be obtained by contact with the outer side of the ear cartilage only by wearing the glasses in a normal state. On the other hand, in the case of the conventional bone conduction, it is necessary to strongly sandwich the bone in front of or behind the ear with the inner part of the vine of the glasses, which is painful and cannot be used for a long time. In the present invention, there is no such a problem, and it is possible to comfortably listen to audio information with a feeling similar to that of ordinary glasses.

  The various features of each embodiment described above are not limited to the individual embodiments, but can be replaced or combined with the features of other embodiments as appropriate. For example, in the description of the twenty-first embodiment in FIG. 34, the dummy cover is put on the ear hook portion of the other vine. However, a pair of configurations shown in FIG. 34 is prepared, and the ear covers of the left and right vines are put on the dummy cover. 38, a stereo audio signal can be heard as in the embodiment 25 in FIG. At this time, the two can be connected by wireless communication, but they can also be connected by a glass cord / cable as in Embodiment 22 of FIG. Regarding the features of the glass cord, in the twenty-first embodiment, the structure shown in FIG. 34 and the dummy cover may be connected by a glass cord to prevent loss. Regarding the feature of the stereo conversion, the embodiment 23 in FIG. 36 does not sort the components into the left and right vines in the same manner as described above, but prepares two sets of necessary components and positions them in the left and right vine portions respectively. With this configuration, it is possible not only to make the video 3D, but also to listen to a stereo audio signal as in the embodiment 25 in FIG. At this time, referring to the twenty-fifth embodiment, a part of the left and right configurations (for example, at least the control unit and the power supply) can be appropriately shared.

  In the above embodiments, the effects of the present invention are described by taking the mobile phone and its transmission / reception unit or 3D television viewing glasses as examples, but the advantages of the present invention are not limited to this, and the present invention can be applied to other embodiments. Can be used. For example, the various features of the invention described above are also useful in hearing aid implementations.

  The various features of each embodiment described above are not limited to the individual embodiments, but can be implemented in various embodiments in which the features are modified as long as the advantages of the features can be enjoyed. For example, FIG. 40 is a perspective view showing a modification of the tenth embodiment in FIG. Also in this modification, the cartilage conduction vibration source 925 composed of a piezoelectric bimorph element or the like serves as a cartilage conduction vibration source as in FIG. . However, in the modification of FIG. 40, the cartilage conduction vibration source 925 itself extends to the side of the mobile phone 901, and vibrates the right end 224 and the left end 226 thereof. Therefore, in the same manner as in FIG. 19, the sound can be heard by cartilage conduction by bringing any of them into contact with the tragus. The cartilage conduction vibration source 925 does not vibrate only at the right end 224 and the left end 226, but vibrates as a whole. Therefore, in the same manner as in FIG. 19, voice information can be transmitted no matter where the upper inner edge of the mobile phone 901 is in contact with the ear cartilage. Note that a cartilage conduction output portion 963 made of a material whose acoustic impedance is similar to that of the ear cartilage is disposed in front of the cartilage conduction vibration source 925 as in FIG.

  Further, with respect to the embodiment 23 in FIG. 36, the following modified example is possible. That is, in the twenty-third embodiment, the transmitting unit 1723 is configured by a normal air-conducting microphone, but instead the transmitting unit 1723 may be configured by a bone-conducting microphone (bone-conducting contact type microphone or pickup). It is possible to selectively pick up the sender's voice under noise without picking up noise. Further, it is also possible to transmit a voice in a low voice that does not bother others. The spectacle vine is typically in natural contact with the bone in front of the ear (the zygomatic arch or part of the temporal bone above the zygomatic arch) or the bone behind the ear (the temporal bone mastoid). Therefore, referring to FIG. 36, by arranging the transmitting section 1723 composed of the bone-conducting contact type microphone at the above-mentioned bone contact portion in the left crane 2184 of the eyeglasses, it is possible to transmit by bone conduction. It is possible to pick up the voice of the person. Also, as shown in FIG. 36, the vibration from the cartilage conduction vibrating unit 1826 is distributed by distributing the transmitting unit 1723 composed of the cartilage conduction vibrating unit 1826 and the bone conduction contact type microphone to the right and left crane units 2182 and 2184. It is possible to prevent the bone conduction contact microphone from picking up.

  In addition, in Example 23 of FIG. 36 or the above-described modified example, it is also possible to omit the configuration related to 3D display from the lens unit 2186 and obtain a normal eyeglass configuration in which only the right lens 2110 and the left lens 2114 are provided. is there.

  On the other hand, the following modified example is also possible for the embodiment 25 in FIG. That is, since the twenty-fifth embodiment is configured as the viewing glasses 2381, the sound source of the stereo audio information is in the 3D television 2301, and based on the audio signal received by the infrared communication unit 2387, the cartilage conduction vibration unit for right ear 2324 and the left The ear cartilage conduction vibration part 2326 is vibrated. However, instead of this, the stereo audio signal unit serving as the sound source unit of the stereo audio information and the audio memory for providing data to the stereo audio signal unit may be replaced with one or both of the eyeglass main unit 2386 or the right and left crane units 2382 and 2384 in FIG. The present invention can be configured as an independent portable music player. In order to understand the configuration of such a modification with reference to FIG. 38, it is assumed that the above-described stereo audio signal unit and the audio memory for providing data to the stereo audio signal unit are included in the control unit 2339. In this modification, since the cooperation with the 3D television 2301 is unnecessary, in FIG. 38, the right main shutter 2358, the left shutter 2359, and the shutter driving unit 2357 are replaced with the main glasses unit 2386 in FIG. The right and left lenses of such normal glasses are arranged.

  Also, in the case of the modification in which the right lens and the left lens are arranged in the spectacle main portion 2386 to form the normal spectacles as described above, the control unit, the audio driving unit, the infrared communication unit, the power supply unit, etc. The components arranged in the main portion 2386 are appropriately allocated to the right and left crane portions as in Embodiment 23 in FIG. 36 to prevent the eyeglass main portion 2386 from being enlarged. It may be. Note that the infrared communication unit 2387 in the modified example has a function of inputting sound source data from an external sound source data holding device such as a personal computer. The infrared communication unit 2387 also controls the volume of the cartilage conduction vibration unit for right ear 2324 and the cartilage conduction vibration unit for left ear 2326 and adjusts the balance between the left and right vibration outputs using a remote control or the like at hand. Function as a wireless communication unit. Further, when the portable music player cooperates with the mobile phone, the portable music player can also receive the voice information of the mobile phone. Further, in this case, if an air-conducting microphone or a bone-conducting microphone is provided in the portable music player, the portable music player can also function as an external transmission / reception device of the mobile phone.

  The above-described device for arranging the components in the eyeglass main portion 2386, the right vine portion 2382, and the left vine portion 2384 is not limited to the above-described modification. For example, even in the case of the viewing glasses 2381 itself in Embodiment 25 of FIG. 38, the control unit 2339, the infrared communication unit 2387, the power supply unit 2348, the right audio drive unit 2335, and the left audio drive unit 2336 are connected to the right tool unit 2382. And the left crane portion 2384 may be appropriately distributed.

  FIG. 41 is a perspective view of Example 26 according to the embodiment of the present invention, which is configured as a mobile phone. A mobile phone 2401 according to the twenty-sixth embodiment is a so-called smartphone having a large screen display unit 205 having a GUI function, which is an integrated type having no movable parts, similarly to the modification of the tenth embodiment illustrated in FIG. It is configured. Since the structure has many points in common, corresponding portions are denoted by the same reference numerals as in FIG. 40, and description thereof is omitted. Note that in the twenty-sixth embodiment, as in the tenth embodiment and its modifications, the “upper portion” does not mean the separated upper portion, but the upper portion of the integrated structure.

  The twenty-sixth embodiment is different from the modification of the tenth embodiment shown in FIG. 40 in that the vibration of the cartilage conduction vibration source 925 is also used as a vibration source for generating a feedback feeling of a touch operation in the touch panel function of the large screen display unit 205. Is a point. Specifically, between the cartilage conduction vibration source 925 and the configuration below it (the large screen display unit 205), a vibration isolation material 2465 such as a vinyl type or a urethane type is provided, and the acoustic impedance is set. The audio signal due to cartilage conduction is not easily transmitted to the large screen display unit 205 or the like due to the difference between the two. On the other hand, when any input by the touch panel function is received by touching the large screen display unit 205, the cartilage conduction vibration source 925 vibrates at a low frequency lower than the audible range in order to feed back the input to the touched finger. Let me do. Since the vibration frequency is selected to be substantially the same as the resonance frequency of the vibration isolation material 2465, the vibration isolation material 2465 resonates due to the vibration of the cartilage conduction vibration source 925, and this is transmitted to the large screen display unit 205. Can be As described above, the vibration isolating material 2465 that prevents the vibration in the sound area functions as a vibration transmitting material for the low-frequency vibration for feedback. Thereby, the low frequency vibration is transmitted to the finger touching the large screen display unit 205, and it can be known that the touch input has been received. In order to prevent the impact of the touch operation itself from being confused with the feedback vibration corresponding thereto, the cartilage conduction vibration source 925 is provided with a predetermined delay from the moment of the touch, and is subjected to the feedback vibration after the touch impact is settled.

  In the twenty-sixth embodiment, an operation button 2461 is provided, and is used for an operation of turning on and off a touch panel function of the large screen display unit 205 and the like. In the twenty-sixth embodiment, for simplicity of illustration, the cartilage conduction output portion 963 provided in the modification of the tenth embodiment shown in FIG. 40 is omitted, but it is optional to provide this. .

  FIG. 42 is a block diagram of the twenty-sixth embodiment. The same parts as those in FIG. Also, the configuration of the block diagram in FIG. 42 has many points in common with the block diagram of the fourth embodiment in FIG. 8, and the configuration of the conceptual block diagram in FIG. 9 can be referred to. Are assigned the same reference numerals and description thereof is omitted.

  42 shows a touch panel 2468 and a touch panel driver 2470 that drives the touch panel 2468 under the control of the control unit 2439 in the large screen display unit 205 in FIG. 42, but this is not specific to the twenty-sixth embodiment. The large screen display unit 205 is common to the other embodiments having a touch panel function, and other embodiments are not shown in the drawings to avoid complication. In FIG. 42, the vibration isolating material 2465 is shown in the portions of the cartilage conduction vibration source 925 and the touch panel 2468, respectively, but this is only described for the convenience of the space shown in the block diagram. The vibration isolator 2465 is the same, and does not mean that it is separated and provided at the positions of the cartilage conduction vibration source 925 and the touch panel 2468, respectively. That is, FIG. 42 shows that the vibration isolator 2465 resonates due to the low-frequency vibration of the cartilage conduction vibration source 925 and is transmitted to the touch panel 2468.

  As shown in FIG. 42, in the twenty-sixth embodiment, a low-frequency source 2466 that generates a drive signal having a frequency substantially matching the resonance frequency of the vibration isolation member 2465 is provided. When receiving the input by detecting the touch of the finger, it instructs the low frequency output from the low frequency source 2466 after a predetermined delay. The phase adjusting mixer 2436 drives the cartilage conduction vibration source 925 based on a signal from the telephone function unit 45 in a call state, but outputs a signal from the telephone function unit 45 in a non-call operation state in which the touch panel 2468 is operated. Shut off and instead drive cartilage conduction vibration source 925 based on the signal from low frequency source 2466. Note that, in a call state, the phase adjustment mixer section 2436 blocks a signal from the low frequency source 2466.

  The function of the control unit 2439 in FIG. 42 in the twenty-sixth embodiment can use the flowchart in the fourth embodiment in FIG. The dual use of the cartilage conduction vibration source 925 as a touch operation feedback tactile vibration source, which is a feature of the twenty-sixth embodiment, can be understood as a detailed function of step S42 in FIG.

  FIG. 43 shows details of step S42 in FIG. 10 as described above. When the flow starts, first, in step S222, it is checked whether a non-call operation has been performed. This step is the same as step S6 in the first embodiment of FIG. 4, and checks whether there is any non-call operation such as mail operation, Internet operation, other settings, and operation that does not use radio waves such as downloaded games. Is what you do. If these operations are performed, the process proceeds to step S224 to check whether or not touch panel 2468 is in the insensitive state. If not, the cartilage conduction vibration unit including the cartilage conduction vibration source 925 is turned on in step S226. On the other hand, if it is detected in step S224 that the touch panel 2468 is in the insensitive state, it means that the non-call operation was performed by the operation button 2461, and the process proceeds to step S228 to set the button corresponding to the operation. Perform processing. Next, in step S230, it is checked whether or not the touch panel 2468 has been set to be enabled by a button operation. In addition, in the case where the non-call operation is not detected in step S222 or the case where the validity setting of the touch panel 2468 is not detected in step S230, the flow is immediately terminated.

  When the cartilage conduction vibration unit is turned on in step S226, the flow proceeds to step S232, in which the phase control mixer unit 2436 is controlled to cut off the output from the telephone function unit 45, and in step S234, the output of the low frequency source 2466 is transmitted to the cartilage conduction oscillator. It connects to the vibration source 925 and reaches step S236. In step 236, the presence or absence of a touch panel operation is checked. If there is an operation, the process proceeds to step S238 to perform a response process according to the operation. Then, the process proceeds to step S240, and after a predetermined delay time (for example, 0.1 second), the process proceeds to step S242. In step S242, the low frequency is output from the low frequency source 2466 for a predetermined time (for example, 0.5 seconds), the operation feeling is fed back to the operated finger, and the process proceeds to step S244.

  In step S244, it is checked whether or not the touch panel 2468 has been in the non-operation state for a predetermined time (for example, 3 seconds) after the last touch panel operation. Hereinafter, as long as the operation of the touch panel 2468 continues within a predetermined time, steps S236 to S244 are repeated, and the touch panel input and the operation feeling feedback by the cartilage conduction vibration source 925 are continued.

  On the other hand, when it is detected in step S244 that the touch panel 2468 has been in the non-operation state for a predetermined time or more, the process proceeds to step S246 to turn off the cartilage conduction vibration unit, and further controls the phase adjustment mixer unit 2436 in step S248. Then, the output from the telephone function unit 45 is connected to the cartilage conduction vibration source 925, the output of the low frequency source 2466 is cut off in step S250, and the flow is temporarily ended. Thereafter, the flow is executed in accordance with FIG. 10, and if a call is not detected in step S44 of FIG. 10, the process immediately proceeds to step S34. If the main power is not turned off, the flow returns to step S42. To resume. Therefore, even if the predetermined time has elapsed during the operation of the touch panel and the flow of FIG. 43 ends from step 244, the process immediately returns to step 236 again, and the touch feeling input by the touch panel and the operation feeling feedback by the cartilage conduction vibration source 925 can be continued. it can.

  The implementation of the present invention is not limited to the above embodiment, and various modifications are possible. For example, the vibration isolating material 2465 in the twenty-sixth embodiment is not limited to a material having a function of a bandpass filter that transmits vibration at a resonance frequency, and blocks vibration at a predetermined frequency or higher from the telephone function unit 45 in an audio signal region. In addition, a material having a function of a low-pass filter that transmits vibration of the low frequency source 2466 for touch operation feedback in a lower frequency range may be used.

  Next, a twenty-seventh embodiment of the present invention will be described with reference to FIGS. 41 to 43 in the twenty-sixth embodiment. In this case, “touch panel 2468” in FIG. 42 should be replaced with “motion sensor 2468”, and “touch panel driver 2470” should be replaced with “motion sensor driver 2470”. In the twenty-seventh embodiment, as in the twenty-sixth embodiment, when the cartilage conduction vibration source 925 is used for a touch operation in the GUI function of the large screen display unit 205, this is used as a low-frequency output element for feedback of touch feeling. In addition, it is configured to be used as a shock input element for detecting a touch on the mobile phone 2401. For this purpose, in the twenty-seventh embodiment, the cartilage conduction vibration source 925 is constituted by a piezoelectric bimorph element. A specific configuration for also using the piezoelectric bimorph element as the shock input element can be configured by referring to the block diagram of the fourth embodiment described in FIG. 9 and the flowchart of the eighteenth embodiment described in FIG.

  More specifically, the GUI function of the large-screen display unit 205 according to the twenty-seventh embodiment is not a contact-type touch panel, but a motion sensor 2468 that detects the movement of a finger near the large-screen display unit 205 in a non-contact manner as described above. It is configured using. The impact detection function of the cartilage conduction vibration source 925 composed of a piezoelectric bimorph element is used as an impact sensor for detecting a finger touch (corresponding to a “click” of a mouse or the like) for determining a non-contact selected function. . More specifically, for example, scrolling and selection of icons on the large screen display unit 205 are performed by detecting the movement of a non-contact finger, and a touch impact on the mobile phone 2401 corresponding to the “click” operation is generated by a piezoelectric device. The operation is "determined" or "entered" by performing detection by dual use of the bimorph element. Note that the touch at this time may be performed on an arbitrary location on the outer wall of the mobile phone, not on the large screen display unit 205, so that the “click” operation can be performed without leaving a fingerprint on the large screen display unit 205.

  In addition, the vibration isolating material 2465 in the embodiment 27 with the help of FIG. 41 blocks the vibration from the telephone function unit 45 in the voice signal area, and reduces the shock vibration component in the band pass filter area or the low pass filter area that can be transmitted. The signal is transmitted to a cartilage conduction vibration source 925 composed of a piezoelectric bimorph. After the cartilage conduction vibration source 925 detects the touch impact of the finger, a low frequency is generated from the low frequency source 2466 with a predetermined delay time to vibrate the cartilage conduction vibration source 925, and feedback is provided to the touched finger. Is common to Example 26. In this case, it is necessary to switch the function of the piezoelectric bimorph element between the function as an input element and the function as an output element. This switching is performed using the above-described delay time.

  The implementation of the present invention is not limited to the above embodiment, and various modifications are possible. For example, in detecting a click impact in a non-contact motion sensor as in the twenty-seventh embodiment, the acceleration sensor 49 in FIG. 42 may be used instead of the impact detection function of the piezoelectric bimorph element. Further, both the function of the acceleration sensor 49 and the function of detecting the impact of the piezoelectric bimorph element may be appropriately combined and used.

  The feature of the cartilage conduction vibration source 925 serving as the low-frequency vibration source in the twenty-sixth and twenty-seventh embodiments is not limited to the purpose of feedback of touch feeling to the finger, and the incoming call to the mobile phone 2401 is silent. It is also possible to aim at the dual use of the vibrator notified by. In this case, of course, the introduction of the vibration signal of the low-frequency source 2466 to the cartilage conduction vibration source 925 is performed not in response to the touch detection but in response to the incoming signal, and in that case, no delay is required. Is repeated for a relatively long time (for example, 2 seconds) intermittently (for example, with a vibration stop period of 0.5 seconds).

  The various features shown in each of the above embodiments are not necessarily unique to each embodiment, and the features of each embodiment may be appropriately combined with the features of other embodiments as long as the advantages can be utilized. They can be combined or rearranged. For example, as an external transmission / reception unit for a mobile phone having features as in the twenty-sixth or twenty-seventh embodiment, a glasses-type stereo portable music player described above as a modification of the twenty-fifth embodiment in FIG. Can be combined. In this case, it is possible to enjoy stereo reproduction from a sound source built in the music player and also to enjoy stereo reproduction by receiving an audio signal from a sound source of a mobile phone. Then, it is possible to make a freehand telephone call with a mobile phone using an air-conducting microphone or a bone-conducting microphone built in the glasses-type portable music player.

  44A and 44B relate to Example 28 according to the embodiment of the present invention. FIG. 44A is a perspective view showing a part of the upper end side, and FIG. It is sectional drawing which shows BB cross section of A). Example 28 is configured as a mobile phone 2501 and the vibration of the cartilage conduction vibration source 2525 is transmitted to the vibration conductor 2527 in the same manner as Example 4 shown in FIG. The sound can be heard by cartilage conduction by contacting the bead. In the embodiment 28 of FIG. 44, “upper” does not mean a separated upper part, but means a part above an integrated structure.

  The embodiment 28 in FIG. 44 differs from the embodiment 4 shown in FIG. 7 in the holding structure for holding the cartilage conduction vibration source 2525 and the vibration conductor 2527 in the mobile phone 2501. The configuration and the like for inputting the audio signal to the cartilage conduction vibration source 2525 can be appropriately applied to those according to the first to the twenty-seventh embodiments, and thus the illustration and description are omitted. The cartilage conduction vibration source 2525 according to the twenty-eighth embodiment is configured as a piezoelectric bimorph element (hereinafter, referred to as a “piezoelectric bimorph element 2525”). Piezoelectric ceramic plates 2598 and 2599 are attached to both sides, respectively, and the periphery thereof is solidified with resin. Then, due to its structure, it vibrates in the Y-Y 'direction shown in FIG. Therefore, the vibration component in the Y-Y 'direction is large and the vibration component in the X-X' direction is small on the resin surface of the piezoelectric bimorph element 2525.

  On the premise of the structure of the piezoelectric bimorph element 2525 as described above, in the holding structure of the twenty-eighth embodiment, as can be seen from the cross-sectional view of FIG. The piezoelectric bimorph element 2525 is sandwiched therebetween. Note that the holder 2516 and the piezoelectric bimorph element 2525 are joined with an adhesive, and the holder 2516 is rigidly connected to the mobile phone 2501. On the other hand, in the YY ′ direction of the piezoelectric bimorph element 2525, a gap 2504 is provided between the inner surface side, which is the right side in FIG. And the vibration component is hardly transmitted to the holder 2516. Further, a vibration conductor 2527 is rigidly bonded to the outer surface of the piezoelectric bimorph element 2525 in the Y-Y 'direction on the left side in FIG. 44B with an adhesive. The mobile phone 2501 has an opening 2501a for exposing the vibration conductor 2527. The space between the vibration conductor 2527 and the holder 2516 and the opening 2501a of the mobile phone 2501 is filled with a vibration isolating material 2565 made of an elastic material such as vinyl or urethane. Free vibration in the direction is allowed, and the vibration component of the piezoelectric bimorph element 2525 is hardly transmitted to the holder 2516 and the mobile phone 2501. In the above description, the gap 2504 may also be configured to be filled with the same elastic body as the vibration isolation member 2565.

  With the holding structure described above, the force of the hand holding the mobile phone 2501 is rigidly applied to the vibration conductor 2527, so that the contact with the right tragus or the left tragus and the pressure thereof can be easily controlled. it can. In addition, since the vibration conductor 2527 has a structure that allows free vibration in the YY ′ direction, the vibration conductor 2527 efficiently vibrates and the vibration is transmitted to the ear cartilage, and the vibration of the vibration conductor 2527 is reduced. It is possible to effectively prevent unnecessary air conduction from being transmitted to the mobile phone 2501.

  FIG. 45 is a cross-sectional view related to a modification of the embodiment 28 of FIG. FIG. 45A is a cross-sectional view of the first modified example, which is shown according to FIG. 44B, and common portions are denoted by common numbers. Similarly, FIG. 45B shows a cross-sectional view of the second modification. In the first modified example shown in FIG. 45A, a gap 2504 is widened between the holder 2516 and the piezoelectric bimorph element 2525, and the holding for sandwiching the piezoelectric bimorph element 2525 from the XX ′ direction therebetween. An auxiliary unit 2506 is provided. The holding auxiliary unit 2506 selects a rigid material having a different acoustic impedance from both or at least one of the holding body 2516 and the piezoelectric bimorph element 2525. Note that the holding assisting portion 2506 may be an elastic body if there is no problem in holding force. In addition, since the holding auxiliary portion 2506 is arranged at the center portion avoiding the vibration surface in the YY ′ direction of the piezoelectric bimorph element 2525, even if it is integrally molded with the same material as a part of the holding body 2516, Compared to FIG. 44B, the effect of allowing the vibration in the YY ′ direction in the piezoelectric bimorph element 2525 and reducing the transmission of the vibration to the mobile phone 2501 is large.

  The second modification in FIG. 45B also has a configuration in which the gap 2504 is widened between the holder 2516 and the piezoelectric bimorph element 2525. A plurality of screws 2508 provided at a central portion of the piezoelectric bimorph element 2525 are used. The screw 2508 is screwed so that its sharp tip slightly bites into the surface of the piezoelectric bimorph element 2525 to secure the holding of the piezoelectric bimorph element 2525.

  FIG. 46 is a sectional view of still another modification of the embodiment 28 in FIG. FIG. 46A is a cross-sectional view of the third modification, which is similar to FIG. 45 and is shown according to FIG. 44B, and common portions are denoted by common numbers. Similarly, FIG. 46B shows a cross-sectional view of the fourth modification. In the third modification shown in FIG. 46A, a resin is molded so that a concave portion 2580 is formed on the surface of the piezoelectric bimorph element 2525, and a corresponding convex portion is integrally molded with the holder 2516. . The engagement of these concave and convex portions ensures that the holding body 2516 holds the piezoelectric bimorph element 2525. In assembling, the piezoelectric bimorph element 2525 may be fitted by utilizing the slight elasticity of the holding body 2516, or the holding body 2516 may be divided into two parts, and these parts may be inserted after the piezoelectric bimorph element 2525 is sandwiched. May be configured to be screwed together.

  In a fourth modification shown in FIG. 46B, a resin is molded so that a convex portion 2590 is formed on the surface of the piezoelectric bimorph element 2525, and a corresponding concave portion is integrally molded with the holder 2516. . Then, the holding of the piezoelectric bimorph element 2525 by the holding body 2516 is ensured by the engagement of these concave and convex portions as in FIG. When assembling, the piezoelectric bimorph element 2525 is fitted by utilizing the slight elasticity of the holder 2516 or the holder 2516 is divided into two parts as in FIG. After sandwiching 2525, these are integrally screwed.

  FIG. 47 relates to a working example 29 according to the embodiment of the present invention. FIG. 47 (A) is a perspective view showing a part of the upper end side, and FIG. FIG. 4 is a perspective view showing a part of the upper end side in FIG. The twenty-ninth embodiment has substantially the same holding structure as that of the twenty-eighth embodiment shown in FIG. The configuration is different from that of the cell phone 2501c in that it is exposed on the surface of the mobile phone. Therefore, the same parts as those in FIG. 44 are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only differences from the twenty-eighth embodiment of FIG. 44 will be described.

  In the embodiment 28 of FIG. 44, the vibration conductor 2527 is exposed in a strip shape over the entire upper end of the mobile phone 2501. It is configured so that it is possible to make contact. On the other hand, in the embodiment 29 of FIG. 47A, the vibration conductor is separated into the right ear vibration conductor 2524 and the left ear vibration conductor 2526 and bonded to both ends of the piezoelectric bimorph element 2525, respectively. It has become. Then, only the separated portions of the vibration conductor 2524 for the right ear and the vibration conductor 2526 for the left ear are respectively exposed from the openings 2501b and 2501c at the upper corners of the mobile phone 2501. For this reason, a vibration isolator 2565 for burying between the right ear vibration conductor 2524 and the left ear vibration conductor 2526 and the mobile phone 2501 is also provided separately.

  On the other hand, in a modification of the embodiment 29 shown in FIG. 47B, only the left ear vibration conductor 2526 is bonded to the piezoelectric bimorph element 2525. Then, only the left ear vibration conductor 2526 is exposed from the opening 2501b at the corner at the upper end of the mobile phone 2501. Further, a vibration isolating material 2565 for filling the space between the left ear vibration conductor 2526 and the mobile phone 2501 is provided only at the left corner of the mobile phone 2501. In the modification of the embodiment 29 shown in FIG. 47B, the configuration of FIG. 47A is simplified and configured only for the left ear. It is also possible to configure a mobile phone dedicated to the right ear by exposing it from the outside. As a further modification of the modification of the twenty-ninth embodiment shown in FIG. 47B, when the surface of the piezoelectric bimorph element can be shaped into a shape suitable for the outer surface of the mobile phone, the piezoelectric bimorph element is not interposed without the vibration conductor. Can be exposed directly from the opening. Such a modification is also possible in the embodiment 29 shown in FIG. 47A and the embodiment 28 shown in FIG.

  FIG. 48 relates to Example 30 according to the embodiment of the present invention. FIG. 48 (A) is a perspective view showing a part of the upper end side, and FIG. It is sectional drawing which shows BB cross section of A). The embodiment 30 is configured as a mobile phone 2601 and arranges the cartilage conduction vibrating portion on the side of the mobile phone in the same manner as the embodiment 13 shown in FIG. 24 and the embodiment 14 shown in FIG. Also, the embodiment 30 of FIG. 48 is characterized by a holding structure for allowing vibration for otic cartilage conduction in the piezoelectric bimorph element and reducing the transmission of the vibration to the mobile phone as in the embodiment 28 of FIG. Therefore, portions common to the twenty-eighth embodiment are denoted by the same reference numerals, and description thereof is omitted. The illustration and description of the configuration and the like for inputting the audio signal to the cartilage conduction vibration source 2525 are also the same as in the twenty-eighth embodiment.

  In Embodiment 30 of FIG. 48, the piezoelectric bimorph element 2525 has a structure in which the piezoelectric bimorph element 2525 is fitted to the side surface of the mobile phone. Of the mobile phone 2601 comes into contact with the ridge 2525a of the mobile phone 2601. By this contact, the piezoelectric bimorph element 2525 is positioned in the depth direction of the fitting, and the holding force in the pushing direction of the piezoelectric bimorph element 2525 is strengthened. Further, due to the contact structure as described above, a gap 2604 is formed on the piezoelectric bimorph element 2525 in the Y-Y 'direction in a crescent shape, and free vibration is permitted. In addition, also in the embodiment 30, the basic holding of the piezoelectric bimorph element 2525 is performed from the X-X 'direction. In FIG. 48, for the sake of simplicity, a part of the integral structure of the mobile phone 2601 is shown as a holding structure, but a structure like the holding body 2516 of the embodiment 28 and the embodiment 29 is adopted, and You may comprise so that it may adhere to the telephone 2601. The other structure is understood according to FIG. The various modifications shown in FIGS. 45 and 46 are also applicable to the embodiment 30 shown in FIG.

  FIG. 49 relates to Example 31 according to the embodiment of the present invention, and FIG. 49 (A) is a longitudinal sectional view showing a part of the upper end side. FIG. 49 (B) is a cross-sectional view of the same portion and can be understood in the same manner as FIG. 48 (B). Embodiment 31 Embodiment 31 is configured as a mobile phone 2701, and the cartilage conduction vibrating section is arranged on the side of the mobile phone, as in Embodiment 30 shown in FIG. In addition, the feature of the piezoelectric bimorph element lies in the holding structure for permitting vibration for otocartilage conduction in the piezoelectric bimorph element and for reducing transmission of vibration to the mobile phone. Numbers are assigned and explanations are omitted. The illustration and description of the configuration and the like for inputting the audio signal to the cartilage conduction vibration source 2525 are the same as in the thirtieth embodiment.

  The embodiment 31 of FIG. 49 differs from the embodiment 30 of FIG. 48 in the structure for holding the piezoelectric bimorph element 2525. The piezoelectric bimorph element 2525 has a structure to be fitted into the groove on the side surface of the mobile phone 2701 in the same manner as in the thirtieth embodiment, but is apparent from the vertical cross-sectional view of FIG. 49A and the horizontal cross-sectional view of FIG. As described above, the inner surface of the groove is an uneven surface 2794. As a result, the piezoelectric bimorph element 2525 is held at the many tops of the uneven surface 2794, and a large number of gaps 2704 are generated between the two. . Also in FIG. 49, for the sake of simplicity, a part of the integral structure of the mobile phone 2701 is shown as a holding structure, but a structure like the holding body 2516 of the embodiment 28 and the embodiment 29 is adopted, and The mobile phone may be fixed to the mobile phone 2701. This is the same in a modified example described later.

  FIG. 50 is a longitudinal sectional view showing a modification of the embodiment 31, and is understood according to FIG. 49 (A). FIG. 50A shows a first modification, in which a vibration conductor 2727 (silicon, urethane, or the like) is provided on the side of the piezoelectric bimorph element 2525 that contacts the ear cartilage. FIG. 50B shows a second modification, in which a vibration isolating material 2765 is interposed between the piezoelectric bimorph element 2525 and the mobile phone 2701, and the surface where the vibration isolating material 2765 contacts the piezoelectric bimorph element 2525 has an uneven surface. 2795. A modification using the vibration conductor 2727 in the first modification of FIG. 50A and the vibration isolator 2765 in the second modification of FIG. 50B is also possible.

  FIG. 51 is a perspective view of Example 32 according to the embodiment of the present invention. Embodiment 32 is configured as a piezoelectric bimorph element 2525 suitable for use in the mobile phone 2501 of Embodiment 29 shown in FIG. 47A, for example. FIG. 51A is an external perspective view of a piezoelectric bimorph element 2525 of Example 32, and FIG. 51B is a transparent perspective view thereof. In FIG. 51, for convenience of illustration, the piezoelectric bimorph element 2525 is rotated by 90 degrees from the state of FIG. 47A, and is drawn so that the Y-Y 'direction is up and down.

  The holder 2516 of the embodiment 29 in FIG. 47A sandwiches the piezoelectric bimorph element 2525 from the XX ′ direction shown in FIG. The free vibration in the direction is allowed, and the vibration component is hardly transmitted to the holder 2516. Further, the holding body 2516 is configured so as to sandwich a central portion of the piezoelectric bimorph element 2525 to which the right ear vibration conductor 2524 and the left ear vibration conductor 2526 are adhered to both ends, respectively.

  The piezoelectric bimorph element 2525 shown in FIG. 51 is configured to be able to hold the center of the piezoelectric bimorph element 2525 from the X-X 'direction as described above. Specifically, as shown in FIG. 51A, the piezoelectric bimorph element 2525 of the thirty-second embodiment is configured such that the electrodes 2597a and 2598a for inputting the drive signal are located at the center of the piezoelectric bimorph element 2525. ing. As a result, both ends of the piezoelectric bimorph element 2525 are released from the wiring connection, and free vibration is possible. Further, the protruding direction of the electrodes 2597a and 2598a is configured to be the direction along the Y-Y 'direction of the vibration direction. Accordingly, when the center portion of the piezoelectric bimorph element 2525 is sandwiched from the XX ′ direction, the electrodes 2597a and 2598a do not interfere with the holding member 2516 even though the electrodes 2597a and 2598a are arranged in the center portion. There is no need for a special configuration.

  In order to enable the above-described electrode arrangement, as shown in FIG. 51B, the piezoelectric bimorph element 2525 is configured such that the electrode 2597a derived from the central portion of the metal plate 2597 is bent upward by 90 degrees, and The electrodes 2598a respectively derived from the ceramic plates 2598 and 2599 and connected to each other are also bent upward by 90 degrees, and each is configured to protrude from the upper surface of the resin. As a result, the electrode does not protrude in the X-X 'direction, and the center portion of the piezoelectric bimorph element 2525 can be easily sandwiched and supported from the X-X' direction.

  As a modification of FIG. 51, it is also possible to configure such that the electrode 2597a derived from the central portion of the metal plate 2597 and the electrode 2598a derived from the central portion of the piezoelectric ceramic plates 2598 and 2599 project from the side surfaces of the resin, respectively. It is. In this case, in order to support the center portion of the piezoelectric bimorph element 2525 by sandwiching it from the XX ′ direction, a gap is provided to avoid a portion where the holder 2516 interferes with the electrode, and a signal line is connected or held. A socket structure is provided inside the body 2516 and connected to the electrodes. In this case as well, the holding body 2516 needs to have a special configuration. However, since the electrodes 2597a and 2598a are provided in the center, both ends of the piezoelectric bimorph element 2525 are disconnected from the wiring connection. The advantage of enabling free vibration can be enjoyed.

  FIG. 52 relates to a working example 33 according to the embodiment of the present invention, and is configured as a mobile phone 2801. FIG. 52 (A) is a perspective perspective view of a part of the upper end side viewed from the back side, and FIG. 52 (B) is a transparent perspective view of a part of the upper end side of the modified example viewed from the opposite side surface. FIG. Embodiment 33 shown in FIG. 52 (A) has a holding structure substantially similar to Embodiment 29 in FIG. 47 (A), but a pair of vibration conductors 2824 and 2826 which are in contact with the ear cartilage are attached to the surface of the mobile phone. Is different.

  More specifically, in Embodiment 29 of FIG. 47, the vibration conductors 2524 and 2526 are directly exposed at the upper corner of the mobile phone 2501. On the other hand, in the embodiment 33 of FIG. 52, the corners 2801d and 2801e are part of the outer wall having sufficient strength of the mobile phone 2801 itself, and the vibration conductors 2824 and 2826 are respectively guarded by them. The mobile phone 2801 is exposed on the display surface side. Details of this exposure state and its significance will be described later. Other configurations are the same as those of the embodiment 29 in FIG. 47, and therefore, in FIG. 52, the common portions are denoted by the same reference numerals and description thereof is omitted. Example 33 is also an example of mounting the piezoelectric bimorph element 2525 shown in Example 32, and also shows the positions of the electrodes 2597a and 2598a.

  A modification of the embodiment 33 in FIG. 52 (B) has the same configuration as the vibration unit described in FIG. 52 (A) except that the mobile phone 2801 has the same configuration as the embodiment 30 in FIG. 48 and the embodiment 31 in FIG. It is attached to vibrate the side. Also in the modification of the embodiment 33 in FIG. 52B, the upper vibration conductor 2824 of the pair of vibration conductors is guarded by the corner 2801d of the mobile phone 2801 having sufficient strength, It is exposed on the side. It should be noted that the lower vibration conductor 2826 is naturally not guarded at a corner, and is naturally guarded.

  53 is an external perspective view of Example 33 of FIG. 52 and a modified example thereof as viewed from the front. FIG. 53 (A) is that of Example 33, and FIG. 53 (B) is that of the modified example. Things. Also in FIG. 53, there are many configurations in common with the embodiment 26 in FIG. 41 and the like. Therefore, common portions are denoted by the same reference numerals and description thereof is omitted.

  As is clear from FIG. 53A, the pair of vibration conductors 2824 and 2826 are exposed on the surface of the large screen display unit 205 of the mobile phone 2801 in such a manner as to be guarded by the corners 2801d and 2801e of the mobile phone 2801, respectively. ing. As in the embodiment 29 of FIG. 47, in the embodiment 33 of FIG. 53 (A), the space between the pair of vibration conductors 2824 and 2826 and the mobile phone 2801 is filled with the vibration isolating material 2865, respectively.

  Here, the significance of the configuration of Embodiment 33 shown in FIGS. 52 and 53 will be described. The corners 2801d and 2801e of the mobile phone 2801 are suitable portions to be applied to otocartilage such as tragus, but at the same time, are likely to be directly impacted when dropped. Therefore, for example, in the case of a configuration as in the embodiment 29 in FIG. 47, the vibration conductors 2524 and 2526, the piezoelectric bimorph element 2525 to which they are bonded, and the vibration unit such as the holder 2516 are resistant to collision. It must be configured. In contrast, according to the configuration of Embodiment 33 shown in FIGS. 52 and 53, the vibration conductors 2524 and 2526 are guarded by the corners 2801d and 2801e of the mobile phone 2801. As a result, the countermeasures against impact are simplified.

  Also in the modification of FIG. 53B, as apparent from the figure, the upper vibration conductor 2824 of the pair of vibration conductors is guarded by the corner 2801d of the mobile phone 2801 and is provided on the side surface of the mobile phone 2801. It is exposed. Further, the lower vibration conductor 2826 is located on the side surface to which a direct impact is hardly applied. As in the case of FIG. 53A, the space between the pair of vibration conductors 2824 and 2826 and the mobile phone 2801 is filled with a vibration isolation material 2865, respectively.

  When the vibration conductors 2824 and 2826 are provided at two places on the side surface (one of them is near the upper corner 2801) as in the modification of the embodiment 33 shown in FIGS. 52 (B) and 53 (B). Both can be applied to two places of the ear cartilage in the longitudinal direction. In this case, when the interval between the vibration conductors 2824 and 2826 is set to about 2 cm to 5 cm, when the lower vibration conductor 2826 is applied to the tragus, the upper vibration conductor 2824 is also applied to the ear cartilage. Becomes possible. Of course, it is optional to use the upper vibration conductor 2824 in contact with the tragus for listening. Similarly, in the case of the embodiment 33 shown in FIGS. 52 (A) and 53 (A), both of the vibration conductors 2824 and 2826 can be applied to two places of the ear cartilage in the lateral direction. Further, as in the embodiment 29 of FIG. 47, it is optional to selectively use the vibration conductor 2824 for the right tragus abutment and the vibration conductor 2826 for the right tragus abutment.

  In any case, the two points of contact with the ear cartilage can introduce the energy of the vibration conductors 2824 and 2826, which are simultaneously vibrating, into the ear cartilage, so that the energy is transmitted efficiently. On the other hand, when the mobile phone 2801 is strongly pressed against the tragus to obtain the trabecular bone conduction effect, it is easier to press the tragus and close the ear if it is easier to apply only one vibration conductor at the corner to the tragus. Can be.

  FIG. 54 is a perspective view showing Example 34 according to the embodiment of the present invention, which is configured as a mobile phone 2901. The embodiment 34 is configured to vibrate the side surface of the mobile phone 2901 as in the embodiment 30 of FIG. 48 and the embodiment 31 of FIG. 49. Both sides can be vibrated so that any of the above can be handled. In other words, the embodiment 34 in FIG. 54 is obtained by replacing the pair of vibration conductors 2824 and 2826 in the embodiment 33 in FIG. 52 (A) with a pair of vibration conductors 2924 and 2926 for side arrangement. The vibration conductors 2924 and 2926 have a vertically long shape so that contact with the ear cartilage can be achieved over a wide area on the side surface. The holding structure of the piezoelectric bimorph element 2525 is the same as that of the embodiment 33 in FIG. 52 (A), but detailed illustration is omitted to avoid complication.

  In the embodiment 34, the color of the vibration conductors 2924 and 2926 is made different from the color of the outer wall of the mobile phone 2901, and it is configured to listen to the sound from the side, and the part to be touched by the user at that time is provided to the user. You may comprise so that it may understand. On the other hand, if it is configured to listen to the sound from the side and the part to be touched at that time is known to the user, the colors of the vibration conductors 2924 and 2926 are changed to the color of the outer wall of the mobile phone 2901. The color may be the same, or the surface may be subjected to a surface treatment so that the boundary with the outer wall of the mobile phone 2901 is not recognized. Other configurations of the embodiment 34 are the same as those of the embodiment 26 of FIG. 41, for example.

  FIG. 55 is a perspective view of Example 35 according to the embodiment of the present invention, which is configured as a mobile phone 3001. Embodiment 35 is also configured to vibrate both side surfaces of the mobile phone 3001 over a wide range, similarly to Embodiment 34 of FIG. However, unlike the embodiment 34 of FIG. 54, a pair of piezoelectric bimorph elements 3024 and 3026 are arranged in a vertically long posture so that both side surfaces can be controlled independently. Therefore, it is possible to automatically vibrate only one of the used piezoelectric bimorph elements in the same manner as in the first to third embodiments described with reference to FIGS. Regarding the holding of the piezoelectric bimorph elements 3024 and 3026, the holding structure of each embodiment described with reference to FIG. 44 to FIG. 52 and the like can be appropriately adopted, so that detailed illustration is omitted to avoid complexity.

  Also in the embodiment 35, when the piezoelectric bimorph elements 3024 and 3026 are arranged on the side surfaces, the piezoelectric bimorph elements 3024 and 3026 are covered with a material like the vibration conductor 2527 in the embodiment 30 in FIG. May be configured to be different from the color of the outer wall of the mobile phone 3001 so that the user can hear the sound from the side and the portion to be touched by the user at that time. On the other hand, as in the case of the embodiment 35, when it is configured to listen to the sound from the side and when the user touches the ear, the color of the vibration conductor is changed to the outer wall of the mobile phone 3001. Or the surface of the outer wall of the mobile phone 3001 may be subjected to a surface treatment so that the boundary between the outer wall and the other side is not visible. Other configurations of the embodiment 35 are common to the embodiment 26 of FIG. 41, for example.

  FIG. 56 is a transparent perspective view of Example 36 according to the embodiment of the present invention, which is configured as a mobile phone 3101 and a mobile phone 3201. The embodiment 36 in FIG. 56 has substantially the same configuration as the embodiment 35 in FIG. 55, except that the mobile phone is a left-handed mobile phone 3101 shown in FIG. 56A and a right-handed mobile phone 3101 shown in FIG. The mobile phone 3201 is configured so that either one can be selectively provided to the market. That is, in the left-handed mobile phone 3101 in FIG. 56A, the piezoelectric bimorph element 3024 for contacting the left ear cartilage is used for the right-handed mobile phone 3201 shown in FIG. 56B. The piezoelectric bimorph element 3026 is provided. Further, since the transmission unit such as a microphone is limited to one-sided use, the transmission unit (microphone) 1223 on the lower left side of the portable telephone 3101 in FIG. In the right-hand-held mobile phone 3201), a transmission unit (microphone) 1123 is provided below the right side surface. Note that these transmission units (microphones) 1123 or 1223 are used in a videophone call while observing the large screen display unit 205 in the same manner as in Example 12 or Example 13. Switching between 1123 and 1223 is performed, so that the sound produced by the user observing the large screen display unit 205 can be picked up.

  In the embodiment 36 of FIG. 56, the audio-related components such as the piezoelectric bimorph element and the microphone for receiving and transmitting are combined on the side of the mobile phone as described above, and the visual-related components such as the large screen display unit 205 are used for the mobile phone. Since the mobile phone 3101 or 3201 is put in front of the phone, the side face is used when the mobile phone 3101 or 3201 is put on the face of the ear or the like, and the mobile phone 3101 which forms a 90-degree angle is used when looking at the mobile phone 3101 or 3201 with the eye. Alternatively, the two sides of the mobile phone 3101 or 3201 can be used properly, and the front of the mobile phone 3101 or 3201 can be prevented from being stained with the face on the large screen display unit 205 or the like.

  In the embodiment 36 of FIG. 56, the opposite side surface on which the piezoelectric bimorph element 3024 or 3026 is not disposed is mainly used for holding the mobile phone, so that the side surface has a rough texture so that it is natural to hold by hand. Can be covered with the material 3101f or 3201f to facilitate holding, and it is possible to clearly indicate which side is in contact with the ear. Note that, in Embodiment 36, as in Embodiment 35, the color of the vibration conductor covering the piezoelectric bimorph element 3024 or 3026 may be different from the color of the outer wall of the mobile phone 3101 or 3201. Also, in Example 36, when the opposite side surface is covered with the rough textured material 3101f or 3201f as described above, the color of the vibration conductor is changed to the color of the mobile phone 3101 or 3201 because the side on which the sound is heard can be identified. Or the surface of the mobile phone 3101 or 3201 may be subjected to a surface treatment so that the boundary between the outer wall and the other side portion is not visible. Other configurations of the embodiment 35 are common to the embodiment 26 of FIG. 41, for example.

  Note that “for right hand holding” and “for left hand holding” in the thirty-sixth embodiment mean, for example, that the user turns the wrist while holding the mobile phone 3101 in FIG. It is assumed that the side on which the piezoelectric bimorph element 3024 is provided hits the left ear cartilage when the side face of the mobile phone 3101 is put on the ear without being touched. However, the method of use by the user is arbitrary, and the user holds the mobile phone 3101 shown in FIG. The side of the provided side can be applied to the right ear cartilage. Therefore, "right hand holding" and "left hand holding" are only provisional, and the user can freely select which one to purchase and how to use it. Therefore, the user who rotates the wrist as described above can recognize the mobile phone 3101 in FIG. 56A as “for right hand holding”.

  FIG. 57 is a perspective view showing Example 37 according to the embodiment of the present invention, which is configured as a mobile phone 3301. The embodiment 37 of FIG. 57 has many parts common to the modification of the embodiment 10 of FIG. 40. Embodiment 37 is different from Modification of Embodiment 10 in that the piezoelectric bimorph element 2525 is formed not only on the front surface but also on the front, back, left and right and upper side of the upper side of the mobile phone 3301 with cartilage formed of a material whose acoustic impedance is similar to that of the ear cartilage. That is, it is covered with the conduction output portion 3363. The cartilage conduction output portion 3363 is, for example, a silicone rubber, a mixture of a silicone rubber and a butadiene rubber, a natural rubber, or an air bubble sealed therein, similarly to the cartilage conduction output portion 963 in the tenth embodiment or a modification thereof. It is formed of a material having a structured structure.

  According to the configuration of the thirty-seventh embodiment, cartilage conduction can be obtained by hitting the ear cartilage anywhere on the upper part of the mobile phone 3301, so that the upper part of the mobile phone 3301 can be touched to the ear without worrying about the location. You can listen to the sound at the optimal volume.

  The various features of each embodiment described above are not limited to the individual embodiments, but can be replaced or combined with the features of other embodiments as appropriate.

  FIG. 58 is a cross-sectional block diagram related to Example 38 according to the embodiment of the present invention, which is configured as a mobile phone 3401. Example 38 in FIG. 58 has many parts common to Example 26 or Example 27, and thus common parts are assigned the same reference numerals as in FIG. 42 and description thereof is omitted. Example 38 is different from Example 26 or Example 27 in that the cartilage conduction vibration source 2525 constituted by the piezoelectric bimorph element is rigidly fixed to the housing structure 3426 of the mobile phone 3401 and the cartilage conduction vibration source 2525 Vibration is transmitted to the entire surface of the mobile phone 3401. When the piezoelectric bimorph element constituting the cartilage conduction vibration source 2525 is fixed, the vibration is positively transmitted. Therefore, the piezoelectric bimorph element is brought into close contact with the housing structure 3426 without providing the gap 2504 as shown in FIG. Vibration in the main vibration direction (YY ′ direction) is easily transmitted to the housing structure 3426. As a result, the entire surface of the mobile phone 3401 functions as a vibration conductor, so that cartilage conduction can be obtained regardless of where the surface of the mobile phone 3401 is applied to the ear cartilage.

  Embodiment 38 is configured as described above. Therefore, when a large area on the front or back of the mobile phone 3401 is applied to the entire ear cartilage, the cartilage conduction vibration source is set in the same manner as in Embodiments 5 to 9. The vibration of 2525 is transmitted to the ear cartilage via the housing structure 3426 with a large contact area on the surface of the mobile phone 3401. Further, air-conducted sound generated by vibration of the surface of the mobile phone 3401 is transmitted from the ear canal to the eardrum. Thereby, the sound source information from the cartilage conduction vibration source 2525 can be heard as a loud sound. Further, since the surface of the mobile phone 3401 put on the ear blocks the external auditory canal, environmental noise can be cut off. Further, when the force of pressing the mobile phone 3401 against the ear is increased, the external auditory canal is almost completely closed, and the sound source information from the cartilage conduction vibration source 2525 can be heard as a louder sound by the ear plug bone conduction effect.

  When the side surface of the example 38 is applied to the ear cartilage, similar to the example 11 to the example 14, the example 30, the example 31, the modification of the example 33, and the example 34 to the example 36, It is possible to prevent the front of a mobile phone provided with a display surface or the like from being stained by contact with a face. Furthermore, in the case where the upper side corner of the example 38 is applied to the otic cartilage, the tragus or the like is used in the same manner as in the examples 1 to 4, the example 10 and its modifications, the examples 26 to 29, and the example 33. In addition to easy contact with the ear, the tragus is pushed to close the entrance of the external auditory canal, so that the osteoconducting effect can be easily obtained. The embodiment 37 shown in FIG. 57 is configured so that cartilage conduction can be obtained by hitting the ear cartilage at any position above the mobile phone 3301, but the embodiment 38 shown in FIG. 58 has this feature. It can be said that the sound can be listened to at an optimum volume by expanding the mobile phone 3401 and touching the upper part of the mobile phone 3401 to the ear without worrying about the location anywhere.

  In Embodiment 38 of FIG. 58, the main vibration direction (YY ′ direction) of the piezoelectric bimorph element is conceptualized by a GUI display unit 3405 (in FIG. 58, a block diagram is shown). With reference to the figure, a cartilage conduction vibration source 2525 is fixed to a housing structure 3426 so as to be orthogonal to the large screen display unit 205 having a touch panel function. (Note that the fixing cross section is not shown in FIG. 58, but the state of the fixing will be described later.) Thereby, the large area on the front or back of the mobile phone 3401 provided with the GUI display portion 3405 vibrates efficiently. . It should be noted that even though the energy is relatively small in the non-vibration direction (XX ′ direction) of the piezoelectric bimorph element due to the fixation of the cartilage conduction vibration source 2525, vibration occurs. You can hear the sound by conduction. Incidentally, the GUI display unit 3405 in FIG. 58 collectively illustrates the large screen display unit 205, the display driver 41, and the touch panel driver 2470 in FIG.

  In the embodiment of FIG. 58, a function is selected by a motion sensor that detects the movement of a finger near the GUI display unit 3405 in a non-contact manner in the same manner as in the twenty-seventh embodiment, and a finger touch for determining the selected function is performed. As a shock sensor for detection, a shock detection function of a piezoelectric bimorph element constituting the cartilage conduction vibration source 2525 is used. The shock sensor 3442 shown in FIG. 58 has the same function as the pressure sensor 242 shown in FIG. 9, and extracts a shock detection signal of the piezoelectric bimorph element. The above arrangement in which the main vibration direction (Y-Y 'direction) of the piezoelectric bimorph element is orthogonal to the GUI display portion 3405 is suitable for detecting a touch from the front or back of the mobile phone 3401. In the embodiment shown in FIG. 58, the cartilage conduction vibration source 2525 is also used as a low-frequency output element for feedback of touch feeling in the same manner as in Embodiment 27, but the main vibration direction (Y The arrangement of (−Y ′ direction) is suitable for efficiently transmitting feedback vibration to a finger in response to a touch from the front or back of the mobile phone 3401. In the embodiment of FIG. 58, the cartilage conduction vibration source 2525 is also used as a vibration source of a vibrator for notifying an incoming call to the mobile phone 3401 without sound in the same manner as described in the twenty-sixth embodiment.

  In the embodiment of FIG. 58, the horizontal stationary state is detected by the acceleration sensor 49 in the same manner as in the fourth embodiment, and the vibration of the cartilage conduction vibration source 2525 is prohibited, if applicable. It is configured as follows. Thus, when the mobile phone 3401 is placed on a desk or the like during a call, it is possible to prevent the possibility that vibration noise is generated between the mobile phone 3401 and the desk due to voice output from the other party. Note that it is appropriate to enable the GUI operation and the function of the incoming call vibrator even when the mobile phone 3401 is placed on a desk or the like. In such a case, the acceleration sensor 49 detects the horizontal still state. However, the configuration is such that vibration of the cartilage conduction vibration source 2525 is not prohibited. Details of this point will be described later as a function of the control unit 3439.

  In the embodiment of FIG. 58, the housing structure 3426 of the mobile phone 3401 is configured to vibrate positively, and this vibration may be transmitted to the microphone 223 to cause howling. As a countermeasure, an insulating ring 3465 having a different acoustic impedance from the housing structure 3426 is provided between the housing structure 3426 and the microphone 223 in order to cut off acoustic conduction. Note that howling prevention is also implemented in a circuit manner by a signal transmission path from the transmission processing unit 222 to the reception processing unit 212 in the telephone function unit 45.

  FIG. 59 is a rear perspective view and a cross-sectional view showing how the cartilage conduction vibration source 2525 is fixed to the housing structure 3426 of the mobile phone 3401 in the working example 38 of FIG. FIG. 59 (A) is a rear perspective view showing a part of the upper end side of the mobile phone 3401 of the working example 38, and FIG. 59 (B) is a sectional view showing a BB section of FIG. 59 (A). is there. FIG. 59 (C) is a perspective view of a modification of the thirty-eighth embodiment in which a part of the upper end side is viewed from the opposite side surface. Since the configuration of the piezoelectric bimorph element itself is the same as that of FIG. 44B, common portions are denoted by common numbers.

  As is clear from FIG. 59A, in the thirty-eighth embodiment, the metal plate 2597 of the piezoelectric bimorph element constituting the cartilage conduction vibration source 2525 is disposed so as to be parallel to the front of the mobile phone 3401, and as a result, the main vibration The cartilage conduction vibration source 2525 is fixed to the housing structure 3426 such that the YY ′ direction, which is the direction, is orthogonal to the GUI display portion 3405. Further, as is apparent from FIG. 59 (B), the piezoelectric bimorph element constituting the cartilage conduction vibration source 2525 is tightly fixed inside the housing structure 3426 without a gap, and is arranged in the main vibration direction (Y-Y 'direction). Vibration is easily transmitted to the surface of the housing structure 3426.

  In the modification of the thirty-eighth embodiment shown in FIG. 59C, the metal plate 2597 of the piezoelectric bimorph element constituting the cartilage conduction vibration source 2525 is disposed so as to be parallel to the side surface of the mobile phone 3401, and as a result, in the main vibration direction. The cartilage conduction vibration source 2525 is fixed to the housing structure 3426 such that a certain YY ′ direction is orthogonal to the side surface of the mobile phone 3401. Thus, cartilage conduction can be efficiently obtained when the side of the mobile phone 3401 is put on the ear. In addition, since the energy is relatively small in the non-vibration direction (XX ′ direction) of the piezoelectric bimorph element due to the fixation of the cartilage conduction vibration source 2525, the vibration occurs, but the front or back of the mobile phone 3401 is applied to the entire ear cartilage. You can hear the sound by cartilage conduction even if you hit it. In the modification of the embodiment 38 in FIG. 59 (C), as in FIG. 59 (B), the piezoelectric bimorph element constituting the cartilage conduction vibration source 2525 adheres to the inside of the housing structure 3426 without a gap. It is fixed so that vibration in the main vibration direction (YY ′ direction) is easily transmitted to the surface of the housing structure 3426.

  FIG. 60 is a flowchart of the operation of the control unit 3439 in the working example 38 of FIG. Note that the flow of FIG. 60 mainly illustrates the control of the cartilage conduction vibration source 2525, and thus extracts and illustrates operations focusing on related functions. There is also an operation of the control unit 3439 which is not described in FIG. The flow of FIG. 60 starts when the main power supply of the mobile phone 3401 is turned on. In step S262, the initial startup and the function check of each unit are performed, and the screen display on the GUI display unit 3405 is started. Next, in step S264, the function of the cartilage conduction vibration source 2525 is turned off, and the process proceeds to step S266.

  In step S266, it is checked whether the mobile phone 3401 is busy. When a new line is connected, the telephone is busy, so the flow proceeds to step S268 to turn on the transmission processing unit 222 and the reception processing unit 212, and then proceeds to step S270. If the line is connected and a call is already in progress, the process proceeds from step S266 to step S268. In this case, the transmission processing unit 222 and the reception processing unit 212 are kept on and the process proceeds to step S270.

  In step S270, it is checked whether or not the horizontal still state is detected by the acceleration sensor 49. If not, the process proceeds to step S272 to turn on the cartilage conduction vibration source 2525, and then proceeds to step S274. When the cartilage conduction vibration source 2525 is already turned on, the on state is continued. On the other hand, when the horizontal stationary state is detected in step S270, the process proceeds to step S276, and it is checked whether or not the transmission processing unit 222 and the reception processing unit 212 are on. Then, in this case, since it is in the ON state, the process proceeds to step S278. The cartilage conduction vibration source 2525 is turned off, and the routine goes to Step S274. When the cartilage conduction vibration source 2525 is already off, the off state is continued. In step S274, it is checked whether or not a call is in progress. If the call is in progress, the process returns to step S270. Hereinafter, steps S270 to S278 are repeated as long as a call is in progress. In this way, when the mobile phone 3401 is temporarily placed on a desk or the like during a call, the vibration of the cartilage conduction vibration source 2525 is interrupted even during reception of the other party's voice, Prevents generation of unpleasant vibration noise. Of course, if the horizontal stationary state is not detected in step S270, the cartilage conduction vibration source 2525 is turned on in step S272, and the call resumes.

  On the other hand, when it is detected in step S266 that the call is not being made or the call is not being made due to the end of the call, the process proceeds to step S280, in which the transmission processing unit 222 and the reception processing unit 212 are turned off. The process moves to S282. If the transmission processing unit 222 and the reception processing unit 212 are already off, the off state is continued and the process proceeds to step S282. In step S282, it is checked whether or not there is an incoming call. If there is no incoming call, the process proceeds to step S284 to check whether or not the mode is the GUI mode. If the mode is the GUI mode, the process proceeds to step S286 to perform a shock sensor detection process, and performs a touch feeling feedback process in step S288, and then proceeds to step S290. Steps S286 and S288 are processing for directly moving to step S290 if there is no operation, and executing shock sensor detection and touch feeling feedback based on the operation if there is any operation.

  In step S290, the low frequency source 2466 is turned on to prepare for input of a touch feeling feedback signal or the like. Then, the process proceeds to step S270 to check whether or not the horizontal still state is detected. If it is not in the horizontal resting state, the flow shifts to step S272 to turn on the cartilage conduction vibration source 2525 to prepare for input of a touch feeling feedback signal or the like. When the horizontal stationary state is detected in step S270, the process proceeds to step S276. In this case, since the transmission processing unit 222 and the reception processing unit 212 are not turned on, the process also proceeds to step S272, and the cartilage conduction vibration source 2525 is returned. Turn on. Thus, when the low frequency source 2466 is turned on, the cartilage conduction vibration source 2525 is turned on even if the horizontal stationary state is detected. When the cartilage conduction vibration source 2525 is turned on, the shock sensor function is also maintained.

  On the other hand, if an incoming call is detected in step S282, the flow advances to step S292 to output a vibrating signal for informing of the incoming call, and the flow shifts to step S290. In this case as well, the low-frequency source 2466 is turned on in step S290, and the cartilage conduction vibration source 2525 is turned on in step S272. This is the same as in the case of the GUI mode.

  If it is detected in step S274 that the user is not talking, the process proceeds to step S296, and it is checked whether the main power is turned off. It should be noted that even when the low frequency source 2466 is turned on in step S290 and the process proceeds to step S274, it is not during a call, and the process proceeds to step S296. If the GUI mode is not detected in step S284, the process proceeds to step S294, in which the low frequency source 2466 is turned off, and the process proceeds to step 296. When it is detected in step S296 that the main power supply has been turned off, the flow ends. On the other hand, when the main power supply is not detected to be turned off in step S296, the process returns to step S266, and thereafter, steps S266 to S296 are repeated to cope with various situation changes.

  The various features of each embodiment described above are not limited to the above-described embodiment, and can be implemented in other embodiments as long as the advantages can be enjoyed. Further, various features of each embodiment are not limited to the individual embodiments, and can be replaced or combined with features of other embodiments as appropriate. For example, in the 38th embodiment, in connection with the control of the cartilage conduction vibration source 2525 related to horizontal rest, it is checked whether or not the mode is the videophone mode. , The videophone speaker can be turned on in conjunction with the turning off of.

  Further, the mode of supporting the cartilage conduction vibration source 2525 in the housing structure 3426 of the mobile phone 3401 in the thirty-eighth embodiment is not limited to the rigid direct fixation as in the thirty-eighth embodiment. For example, indirect rigid support via another holding structure may be used as long as vibration can be transmitted. Further, the support is not necessarily limited to a rigid body, and may be held via an elastic body as long as the acoustic impedance is approximated and the vibration is transmitted to the housing surface.

  FIG. 61 is a cross-sectional view of Example 39 according to the embodiment of the present invention and various modifications thereof, which are configured as mobile phones 3501a to 3501d. The thirty-ninth embodiment differs from the thirty-eighth embodiment shown in FIG. 58 to FIG. Since they are common, illustration of parts other than the parts necessary for the description is omitted, and the parts shown in the drawings are denoted by the same reference numerals and the description thereof is omitted unless necessary.

  FIG. 61A relates to Example 39, and is a cross-sectional view of the mobile phone 3501a cut from a side surface and a plane perpendicular to the display surface of the GUI display portion 3405 and viewed from above. As is apparent from the drawing, the piezoelectric bimorph element 2525 is arranged along one side surface of the mobile phone 3501a as in a modification of the embodiment 38 in FIG. However, in Embodiment 39 of FIG. 61, the main vibration direction (Y-Y 'direction) of the piezoelectric bimorph element 2525 is supported not to be perpendicular to the side surface but to be inclined with respect to the side surface. Specifically, the side surface of the thirty-ninth embodiment is provided with an inclined side surface 3507a provided by chamfering the four side ridges, and the piezoelectric bimorph element 2525 has a main vibration inside one of the inclined side surfaces 3507a. A surface (“the outer surface of the piezoelectric bimorph 2525 parallel to the metal plate 2597” is defined as a “main vibration surface”) is adhered and supported. As a result, the main vibration direction (Y-Y 'direction perpendicular to the main vibration surface) of the piezoelectric bimorph element 2525 is perpendicular to the inclined side surface 3507a.

  With such a structure, the user of the mobile phone 3501a can easily apply the inclined side surface 3507a of the mobile phone 3501a to the ear cartilage while preventing the display surface of the GUI display unit 3405 from touching the cheek and becoming dirty. it can. As already described in the other embodiments, the configuration related to audio on the side of the mobile phone and the configuration related to visual on the front of the mobile phone are similar to the configuration when the mobile phone 3501a is put on a face such as an ear. When viewing the mobile phone 3501a with your eyes, you can use the two sides of the mobile phone 3501a differently so as to use the front, and prevent the front face of the mobile phone 3501a from being stained on the face of the GUI display portion 3405 with respect to the face. It is meaningful that you can do it. However, it is also conceivable that the mobile phone 3501a is brought into contact with the ear with the display surface of the GUI display portion 3405 slightly facing the face, rather than completely contacting the side with the ear when using the side. . Embodiment 39 of FIG. 61A is configured assuming such use.

  As described above, in the embodiment 39 of FIG. 61A, the direction of the arrow 25a is the main vibration direction on the inclined side surface 3507a to which the piezoelectric bimorph element 2525 is adhered inside, but the main vibration direction is inclined. Therefore, a vibration component in a direction perpendicular to the display surface of the GUI display unit 3405 indicated by an arrow 25b and a side vibration component indicated by an arrow 25c are generated. Thus, it is possible to hear sound even when one of the front (display surface of the GUI display portion 3405) or the back of the mobile phone 3501a and both sides of the mobile phone 3501a is applied to the ear cartilage. Therefore, any position of the mobile phone 3501a can be arbitrarily used with the direction of the arrow 25a as the best position. In Embodiment 39 of FIG. 61A, the inclined side surface 3507a is inclined closer to the display surface of the GUI display portion 3405, so that the vibration component in the direction indicated by the arrow 25b is in the direction indicated by the arrow 25c. Is larger than the vibration component.

  FIG. 61B shows a first modification of the thirty-ninth embodiment. In the mobile phone 3501b, the inclination of the inclined side surface 3507b is set to approximately 45 degrees with respect to the display surface of the GUI display portion 3405, so that the direction indicated by the arrow 25b is obtained. Is substantially equal to the vibration component in the direction indicated by the arrow 25c. On the other hand, FIG. 61C shows a second modification of the thirty-ninth embodiment. In the mobile phone 3501c, by setting the inclined side surface 3507c to be close to the side surface, the vibration component in the direction indicated by the arrow 25c is better. , And is larger than the vibration component in the direction indicated by the arrow 25b.

  61 (A) to 61 (C) are shown extremely exaggerated for the purpose of explaining the general tendency, but the extreme directivity of the vibration of the piezoelectric bimorph element 2525 after being transmitted to the mobile phones 3501a to 3501c. Since it is not maintained, a subtle change in the direction of the main vibration direction of the piezoelectric bimorph element 2525 provided inside the mobile phone does not sharply change the vibration component. However, it is significant to adjust the arrangement direction of the piezoelectric bimorph element 2525 as in the thirty-ninth embodiment and its modification in consideration of the best position for contact with the ear cartilage. For example, in the case where flat inclined side surfaces are provided as shown in FIGS. 61A to 61C, the inclination of the front surfaces (display surfaces of the GUI display portion 3405) of the cellular phones 3501a to 3501c and the inclined side surfaces 3507a to 3507c is 30 degrees. It is practical to be between about 60 degrees and about 60 degrees.

  FIG. 61D shows a third modification of the thirty-ninth embodiment, in which the side surface of the mobile phone 3501d is a semi-cylindrical surface 3507d. The main vibration direction of the arrow 25a is supported by being pressed inside the semi-cylindrical surface 3507d so as to be substantially 45 degrees with respect to the display surface of the GUI display portion 3405, and the vibration component in the direction indicated by the arrow 25b and the arrow 25c are indicated. The vibration components in the directions are configured to be substantially equal. As a result, the user can hit the ear cartilage at any place from the semi-cylindrical surface 3507d on the side to the front (display surface of the GUI display portion 3405) or the back of the mobile phone 3501d. In the third modification of the thirty-ninth embodiment shown in FIG. 61D, the main vibration direction of the arrow 25a is not limited to the case where the main vibration direction is approximately 45 degrees with respect to the display surface of the GUI display portion 3405. Various inclinations can be set as shown in FIG. Further, it is also possible to configure so that the inclination of the holding can be adjusted and a service of changing the inclination according to the user's request can be provided.

  FIG. 62 is a cross-sectional view and a perspective view showing relevant parts of Example 40 and various modifications thereof according to the embodiment of the present invention, which are configured as mobile phones 3601a to 3601c. Note that the working example 40 shown in FIG. 58 to FIG. 60 also applies to the working example 40 except for the arrangement of the cartilage conduction vibration source 2525 constituted by a piezoelectric bimorph element (hereinafter, exemplarily described as the piezoelectric bimorph element 2525). Therefore, illustration of parts other than those necessary for the description is omitted, and the same parts are denoted by the same reference numerals and the description thereof will be omitted unless necessary.

  FIG. 62 (A) relates to Example 40, and is a cross-sectional view of a mobile phone 3601a cut from a plane perpendicular to the side surface 3607 and the display surface of the GUI display portion 3405 and viewed from above. As is apparent from the drawing, the piezoelectric bimorph element 2525 is arranged along one side surface 3607 of the mobile phone 3601a as in the modification of the embodiment 38 in FIG. However, in Example 40 of FIG. 62, the main vibration direction (YY ′ direction) of the piezoelectric bimorph element 2525 is supported not to be perpendicular to the side surface but to be inclined with respect to the side surface 3607 as in Example 39. . Further, in the fortieth embodiment, the vibrations from the main vibration surfaces on both sides of the piezoelectric bimorph element 2525 are transmitted to the side surface 3607 and the display surface of the GUI display portion 3405 which are orthogonal to each other.

  More specifically, the housing of the mobile phone 3601a of the embodiment 40 shown in FIG. And a second support structure 3600b extending inward from the housing on the display surface side of the GUI display portion 3405, and is bonded to the other main vibration surface of the piezoelectric bimorph element 2525. As a result, the main vibration in the direction indicated by the arrow 25a is decomposed into a vibration component indicated by the arrow 25d and a vibration component indicated by the arrow 25e in a direction orthogonal to the arrow 25d. It is transmitted to the body surface. In this manner, the vibrations of the two main vibrating surfaces of the piezoelectric bimorph element 2525 are disassembled and transmitted in the direction orthogonal to the mobile phone 3601a, and any part of the front, back, and side surfaces of the mobile phone 3601a is applied to the ear cartilage. Also, the vibration of the piezoelectric bimorph element 2525 can be heard. In Embodiment 40 in FIG. 62A, the first support structure 3600a and the second support structure 3600b are provided so as to sandwich the same portion of the piezoelectric bimorph element 2525 from both sides.

  On the other hand, FIG. 62B is a perspective view of the main part of a mobile phone 3601b according to a first modification of the fortieth embodiment viewed from the inside. As is clear from FIG. 62 (B), in the first modified example of the fortieth embodiment, the first support structure 3600a is arranged such that the opposing main vibrating surfaces of the piezoelectric bimorph element 2525 are bonded to the mobile phone 3601b at positions different from each other. And a second support structure 3600b. This facilitates the bonding operation of the piezoelectric bimorph element 2525, reduces the degree of freedom of vibration of the piezoelectric bimorph element 2525, and efficiently transmits the vibration to the housing of the mobile phone 3601b.

  FIG. 62C is a cross-sectional view of a mobile phone 3601c according to a second modification of the fortieth embodiment cut along a plane perpendicular to the side surface 3607a and the upper surface and viewed from the side. In Embodiment 40 of FIG. 62 (A), the main vibration direction of the piezoelectric bimorph element 2525 is decomposed into vibration components in directions perpendicular to the front and side surfaces, respectively. In the modified example, the main vibration direction of the piezoelectric bimorph element 2525 is decomposed into vibration components in directions perpendicular to the front surface and the upper surface, respectively.

  Specifically, as is apparent from FIG. 62C, in the second modification of the fortieth embodiment, a first support structure 3600c extending inward from the upper surface is provided on the housing of the mobile phone 3601c. A second support structure 3600d is provided, which is adhered to one main vibration surface of the piezoelectric bimorph element 2525 and extends inward from the housing on the display surface side of the GUI display portion 3405, and the other main vibration surface of the piezoelectric bimorph element 2525 is provided. Adhered to. As a result, the main vibration in the direction indicated by the arrow 25a is decomposed into a vibration component indicated by an arrow 25f and a vibration component indicated by an arrow 25e in a direction orthogonal to the arrow, and the upper surface and the housing surface on the display surface side of the GUI display portion 3405, respectively. Is transmitted to In this way, the vibrations of the two main vibrating surfaces of the piezoelectric bimorph element 2525 are disassembled and transmitted in the direction orthogonal to the mobile phone 3601c, and any part of the front, back, upper surface, and lower surface of the mobile phone 3601c is transmitted to the ear cartilage. The vibration of the piezoelectric bimorph element 2525 can be heard even if it is applied. In the second modified example of the embodiment 40 shown in FIG. 62C, the first support structure 3600c and the second support structure sandwich the same portion of the piezoelectric bimorph element 2525 from both sides as in FIG. Although the cross-sectional view has a shape provided with 3600d, it may be configured such that different portions on both sides of the piezoelectric bimorph element 2525 are bonded as shown in FIG. 62 (B).

  62C is suitable for listening to sound by attaching the front or back surface of the mobile phone 3601c to the ear cartilage, and in addition, the ear cartilage may be slightly pushed up the upper surface of the mobile phone 3601c. In addition to the use of this method, it is possible to prevent the display surface from touching the face and becoming dirty, and to increase the pushing force of the upper surface to close the external auditory meatus with the tragus and to facilitate the ear plug bone conduction effect. It is also suitable for causing

  FIG. 63 is a cross-sectional view of Example 41 according to the embodiment of the present invention, and is configured as a mobile phone 3701. Also, in Example 41, except for the arrangement of the cartilage conduction vibration source 2525 (hereinafter, exemplarily described as the piezoelectric bimorph element 2525) constituted by the piezoelectric bimorph element, Example 38 shown in FIGS. 58 to 60 is used. Therefore, illustration of parts other than those necessary for the description is omitted, and common parts are given the same reference numerals, and description thereof is omitted unless necessary.

  FIG. 63A is a cross-sectional view of the mobile phone 3701 of Example 41 cut from a plane perpendicular to the side surface 3707 and the display surface of the GUI display portion 3405 and viewed from above. As is apparent from the drawing, the piezoelectric bimorph element 2525 is arranged along the upper surface of the mobile phone 3701 as in the embodiment 38 in FIG. The main vibration direction (Y-Y 'direction) of the piezoelectric bimorph element 2525 is a direction perpendicular to the display surface of the GUI display unit 3405. Specifically, the central portion of the piezoelectric bimorph element 2525 is adhered to a support structure 3700a extending inward from the back of the mobile phone 3701, and both ends of the piezoelectric bimorph element 2525 are both free ends and supported in a state where vibration is not hindered. I do. As a result, the reaction of free vibration at both ends of the piezoelectric bimorph element 2525 as indicated by arrows 25g and 25h is transmitted from the central part of the piezoelectric bimorph element 2525 to the housing of the mobile phone 3701 via the support structure 3700a. .

  FIG. 63B is a cross-sectional view of the cross section taken along line BB of FIG. 63A viewed from the side of the mobile phone 3701. The support structure 3700a in which the piezoelectric bimorph element 2525 extends inward from the back surface of the mobile phone 3701. It is understood that the piezoelectric bimorph element 2525 is supported, and that the piezoelectric bimorph element 2525 is arranged along the upper surface of the mobile phone 3701. As shown in FIG. 63, a structure in which a part of the main vibrating surface of the piezoelectric bimorph element 2525 is supported inside the housing of the mobile phone 3701 and a part of the main vibrating surface is allowed to float to allow free vibration is a piezoelectric bimorph element. It is suitable for efficiently transmitting the vibration to the mobile phone housing without essentially changing the acoustic characteristic inherent to 2525. The support at the center of the piezoelectric bimorph element 2525 as in the embodiment 41 is particularly suitable for a piezoelectric bimorph element in which the terminal is located at the center of the element as in the embodiment 32 shown in FIG.

  FIG. 64 shows various modifications of the embodiment 41 of FIG. 63. In the same manner as in FIG. 63 (A), the portable telephone 3701 is perpendicular to the side surface 3707 and the display surface of the GUI display portion 3405, respectively. It is a cross-sectional view cut from a plane and viewed from above.

  FIG. 64A shows a first modification of the embodiment 41. In particular, the terminal 2525b of the piezoelectric bimorph element 2525 is located at the end of the element, the center of gravity becomes unbalanced, and an arrow is formed by electrode connection to the element. It is suitable when the free vibration on the side of the terminal 2525b indicated by 25g is slightly restrained compared to the vibration of the completely free end indicated by the arrow 25h. In the first modified example of FIG. 64A, the position of the support structure 3701b is shifted to the left on the figure as compared with the support structure 3700a of the embodiment 41 in FIG. 63 to compensate for these imbalances.

  FIG. 64B shows a second modification of the embodiment 41, in which both ends of the piezoelectric bimorph element 2525 are bonded to and supported by a pair of support structures 3700 c and 3700 d extending inward from the back surface of the mobile phone 3701. Things. As a result, the vibration of the central portion of the piezoelectric bimorph 2525 indicated by the arrow 25i becomes free, and the reaction of this vibration is transmitted to the housing of the mobile phone 3701 via the support structures 3700c and 3700d.

  FIG. 64C shows a third modification of the embodiment 41, in which the piezoelectric bimorph element 2525 is supported in a cantilever structure by bonding the terminal 2525b side to a support structure 3700e extending inward from the back surface of the mobile phone 3701. It was done. Thus, the reaction of the vibration of the free end of the piezoelectric bimorph 2525 indicated by the arrow 25h is transmitted to the housing of the mobile phone 3701 via the support structure 3700e.

  FIG. 64D shows a fourth modification of the embodiment 41, in which the piezoelectric bimorph element 2525 is adhered to the inside of the housing on the back surface of the mobile phone 3701 via a double-sided adhesive sheet 3700f made of an elastic body. . The double-sided adhesive sheet 3700f made of this elastic body is made of an elastic body (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or air bubbles) having conductivity from the piezoelectric bimorph element 2525 to the housing. , Etc.). By such elastic bonding, each part of the piezoelectric bimorph element 2525 obtains the degree of freedom of vibration indicated by arrows 25g, 25h, and 25i, and the vibration is transmitted to the housing of the mobile phone 3701 through the double-sided adhesive sheet 3700f. You.

  The various features of each embodiment described above are not limited to the individual embodiments, but can be replaced or combined with the features of other embodiments as appropriate. For example, the support structure in consideration of the free vibration of the piezoelectric bimorph element 2525 of the embodiment 41 in FIGS. 63 and 64 is also applicable to the case where the piezoelectric bimorph 2525 in the embodiment 39 of FIG. 61 and the embodiment 40 of FIG. Can be adopted. More specifically, the support structure in FIG. 62B has a common feature in that both ends of the piezoelectric bimorph element 2525 are supported and the central part is free. Further, the present invention is not limited to this example. For example, in the embodiment 39 of FIG. 61 and its modified example, instead of bonding the entire vibrating surface to the inside of the inclined side surface, the supporting structure 3700a shown in FIG. Similar protrusions may be provided, and only the central portion of the piezoelectric bimorph element 2525 may be bonded to the protrusions so that both ends are free ends. Alternatively, in the embodiment 39 of FIG. 61 and its modification, an elastic body such as the fourth modification of the embodiment 41 in FIG. 64D can be interposed when the piezoelectric bimorph element 2525 is bonded. .

  The implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, in the embodiment 39 of FIG. 61, the piezoelectric bimorph element 2525 is described as being bonded and supported inside the inclined slope inside the mobile phone, but the specific structure of the support is not limited to this. For example, a structure may be employed in which a groove is provided outside the inclined slope and the piezoelectric bimorph element 2525 is fitted into the groove from the outside according to the embodiment 31 shown in FIG.

  FIG. 65 is a cross-sectional view of Example 42 according to the embodiment of the present invention, and is configured as a mobile phone 3801. 58 to 60 except for the arrangement of the cartilage conduction vibration source 2525 constituted by the piezoelectric bimorph element (hereinafter, exemplarily described as the piezoelectric bimorph element 2525) and the holding structure thereof. Since the third embodiment is common to the thirty-eighth embodiment, illustrations other than those necessary for the description are omitted, and the same reference numerals are given to the common parts, and the description is omitted unless necessary.

  FIG. 65A is a cross-sectional view of the mobile phone 3801 of Example 42 cut from a plane perpendicular to the side surface 3807 and the display surface of the GUI display portion 3405 and viewed from above. FIG. 65B is a cross-sectional view of the cross section BB in FIG. 65A viewed from the side of the mobile phone 3801. As is clear from FIG. 65A, the piezoelectric bimorph element 2525 is arranged along the upper surface of the mobile phone 3801 in the same manner as in the embodiment 38 in FIG. 59A or the embodiment 41 in FIG. The main vibration direction of the piezoelectric bimorph element 2525 is a direction perpendicular to the display surface of the GUI display unit 3405 as indicated by an arrow 25g. As described above, the embodiment 42 in FIG. 65 basically supports one side of the piezoelectric bimorph element 2525 in a cantilever structure in the same manner as the modification of the embodiment 41 shown in FIG. 64 (C). This transmits the reaction of the vibration of the free end of the piezoelectric bimorph 2525 indicated by the arrow 25g to the housing of the mobile phone 3801.

  The embodiment 42 of FIG. 65 is different from the modification of the embodiment 41 shown in FIG. 64C in that the upper corner of the housing of the mobile phone 3801 which is suitable for applying to the otocartilage such as the tragus. The point is that the 3824 vibrates particularly efficiently, and the upper corner 3824, which is a part to which a direct impact is likely to be applied in the event of a drop or the like, is prevented from becoming a structure vulnerable to collision. Specifically, as shown in FIGS. 65A and 65B, one end of a piezoelectric bimorph element 2525 serves as a holding end 2525c in a hole of a support structure 3800a extending inward from a side surface 3807 and an upper surface 3807a of the mobile phone 3801. Plugged and held. The holding end 2525c is one end on which the terminal 2525b is not provided. By using one end where the terminal 2525b is not provided as the holding end 2525c, the support position can be brought closer to the upper corner 3824. On the other hand, the other end provided with the terminal 2525b is vibrated as a free end. Note that the terminal 2525b is connected to the circuit 3836 mounted on the housing and the flexible wiring 3836a, and free vibration of the other end provided with the terminal 2525b is not substantially inhibited. The circuit 3836 includes an amplifier and the like for boosting the drive voltage of the piezoelectric bimorph element 2525.

  With the above configuration, the reaction of the free vibration of the other end of the piezoelectric bimorph element 2525 indicated by the arrow 25g is transmitted from the holding end 2525c of the piezoelectric bimorph element 2525 to the housing of the mobile phone 3801 via the support structure 3800a. . At this time, since the support structure 3800a is configured to extend inward from the side surface 3807 and the upper surface 3807a of the mobile phone 3801 at the upper corner 3824 of the housing as described above, the reaction of the free vibration at the other end of the piezoelectric bimorph element 2525 is prevented. It is transmitted to the upper corner 3824 efficiently. Further, as described above, since the piezoelectric bimorph element 2525 is held inside the housing of the mobile phone 3801, the upper corner 3824, which is a part to which a direct impact is likely to be applied, does not have a structure that is vulnerable to collision.

  FIG. 65C shows a first modification of the embodiment 42, in which the piezoelectric bimorph element 2525 is held so that the main vibration direction is perpendicular to the upper surface 3807a as indicated by an arrow 25j. The other configuration is the same as that of the embodiment 42 in FIGS. The first modified example in FIG. 65C has a lot of vertical vibration components on the upper surface 3807a, and thus is suitable for use in contacting the ear cartilage in such a manner that the upper surface of the upper corner 3824 of the mobile phone 3801 is slightly pushed up. . Even with such use, the display surface of the GUI display portion 3405 can be prevented from touching the face and being stained, and the thrust of the upper ear 3807a can be increased to close the external auditory canal with the tragus, thereby easily producing an ear plug bone conduction effect. It is also suitable for the purpose. In the first modification in FIG. 65 (C), the display surface side of the upper corner 3824 of the mobile phone 3801 is applied to the ear cartilage in the same manner as in the embodiment 42 of FIGS. 65 (A) and 65 (B). Can also be used. In this case as well, the external auditory canal is closed by the tragus by increasing the force of pressing the display surface against the ear cartilage, and the effect of guiding the ear plug can be easily generated.

  FIG. 65D shows a second modification of the embodiment 42, in which the main vibration direction is inclined by 45 degrees with respect to the upper surface 3807a as indicated by an arrow 25k. As a result, the vibration component is decomposed in a direction perpendicular to the upper surface 3807a and a direction perpendicular to the display surface of the GUI display portion 3405, and the cartilage of the same degree can be obtained even when the upper corner 3824 is brought into contact with the otic cartilage from any direction. Conduction can be obtained.

  FIG. 66 is a cross-sectional view of Example 43 according to the embodiment of the present invention, which is configured as a mobile phone 3901. Note that Example 43 is also shown in FIGS. 58 to 60 except for the arrangement of the cartilage conduction vibration source 2525 constituted by a piezoelectric bimorph element (hereinafter, exemplarily described as a piezoelectric bimorph element 2525) and its holding structure. Since the present embodiment is the same as the embodiment 38, the illustration other than the parts necessary for the explanation is omitted, and the common parts are given the same reference numerals and the explanation is omitted unless necessary.

  FIG. 66A is a cross-sectional view of the mobile phone 3901 of the forty-third embodiment cut from a plane perpendicular to the upper surface 3907 a and the display surface of the GUI display portion 3405 and viewed from the side. FIG. 66B is a cross-sectional view of the cross section BB in FIG. 66A viewed from above the mobile phone 3901. In the embodiment 43 of FIG. 66, as in the embodiment 42 of FIG. 65, one end of the piezoelectric bimorph element 2525 where the terminal 2525b is not provided is supported as a holding end 2525c in a cantilever structure. The embodiment 43 differs from the embodiment 42 in that the piezoelectric bimorph element 2525 is parallel to the side surface of the cellular phone 3901 in the same manner as the embodiment 39 in FIG. It is a point which is arranged in. The main vibration direction of the piezoelectric bimorph element 2525 is a direction perpendicular to the display surface of the GUI display unit 3405 as indicated by an arrow 25m.

  Therefore, also in the embodiment 43 of FIG. 66, the upper corner 3924 of the housing of the mobile phone 3901 which is suitable for hitting the otocartilage such as the tragus vibrates particularly efficiently, and the upper corner 3924 collides. A weak structure can be avoided. Specifically, in the same manner as in Embodiment 42, as shown in FIGS. 66A and 66B, the piezoelectric bimorph element 2525 is inserted into a hole of the support structure 3900 a extending inward from the side and top surfaces of the mobile phone 3901. One end is inserted and held as a holding end 2525c. Therefore, even in the embodiment 43, the support position can be shifted to the vicinity of the upper corner 3924 by using one end of the piezoelectric bimorph element 2525 in which the terminal 2525b is not provided as the holding end 2525c. The other points are the same as in the forty-second embodiment, and a description thereof will be omitted.

  FIG. 66 (C) shows a first modification of the embodiment 43, in which the piezoelectric bimorph element 2525 is held so that the main vibration direction is perpendicular to the side surface 3907 as indicated by an arrow 25n. The other configuration is the same as that of the embodiment 43 in FIGS. 66A and 66B, and the description is omitted. In the first modified example in FIG. 66C, since there are many vibration components in the direction perpendicular to the side surface 3907, the side surface 3907 of the mobile phone 3901 is applied to the ear cartilage, and the face touches the display surface of the GUI display portion 3405. Suitable for avoiding use. In the first modification of FIG. 66 (C), the display surface side of the mobile phone 3901 is used by touching the ear cartilage in the same manner as in the embodiment 43 of FIGS. 66 (A) and 66 (B). You can also. Also in this case, when the upper corner 3924 is pressed against the ear cartilage, the external ear canal is closed with the tragus by increasing the force, and the osteocontraction effect can be easily generated.

  FIG. 66D shows a second modification of the embodiment 43, in which the main vibration direction is inclined by 45 degrees with respect to the side surface 3907 as indicated by an arrow 25p. As a result, the vibration component is decomposed in a direction perpendicular to the side surface 3907 and in a direction perpendicular to the display surface of the GUI display portion 3405, and the cartilage of the same degree can be obtained even when the upper corner 3924 is brought into contact with the ear cartilage from any direction. Conduction can be obtained.

  FIG. 67 is a cross-sectional view of Example 44 according to the embodiment of the present invention, and is configured as a mobile phone 4001. The embodiment 44 is also the same as the embodiment 38 shown in FIGS. 58 to 60 except for the structure, arrangement and holding structure of the cartilage conduction vibration source 2525 constituted by the piezoelectric bimorph element. The other parts are omitted from the drawings, and the same parts are denoted by the same reference numerals and the description thereof will be omitted unless necessary.

  FIG. 67A is a cross-sectional view (including a partial conceptual block diagram) of the mobile phone 4001 of Example 44 cut from a side surface and a plane perpendicular to the display surface of the GUI display portion 3405 and viewed from above. 65 is a cross-sectional view that can be understood in the same manner as in Example 42 of FIG. 67 (B1) and FIG. 67 (B2) are main portion cross-sectional views of the cross section taken along line B1-B1 and the line B2-B2 of FIG. Further, FIG. 67 (C) is a detailed cross-sectional view (including a conceptual block diagram) of an important part of FIG. 67 (A). In FIG. 67 (B1), FIG. 67 (B2) and FIG. 67 (C), parts corresponding to FIG. 67 (A) are denoted by the same reference numerals, and description thereof will be omitted unless necessary.

  Embodiment 44 in FIG. 67 supports the piezoelectric bimorph element 2525 parallel to the upper surface in the same manner as embodiment 42 in FIG. 65, but has one end provided with the terminal 2525b in a cantilever structure. The present embodiment is different from the forty-second embodiment in that it is supported and that a circuit 4036 for driving the piezoelectric bimorph element 2525 is integrated with the piezoelectric bimorph element 2525 to constitute a vibration unit. Note that the upper corner of the housing of the mobile phone 4001 which is suitable for contacting the otocartilage such as the tragus is particularly efficiently vibrated, and that the upper angle is prevented from becoming a structure vulnerable to collision. The possible points are the same as those of the embodiment 42.

  Specifically, as shown in FIGS. 67A and 67C, a terminal 2525b of the piezoelectric bimorph element 2525 is connected to a circuit 4036 mounted on the terminal 2525b by a wire 4036a. Then, the terminal 2525b side of the piezoelectric bimorph element 2525 and the circuit 4036 are repackaged in a resin package 4025 whose acoustic impedance is similar to the resin that packages the piezoelectric bimorph element 2525, and integrated as a vibration unit. Note that connection pins 4036b protrude outside from the circuit 4036 through the resin package 4025, and are in contact with a control unit / power supply unit 4039 fixed to the housing side of the mobile phone 4001.

  As shown in FIG. 67C, the circuit 4036 includes an amplifier 4036c for boosting the drive voltage of the piezoelectric bimorph element 2525, and an adjustment unit 4036d for electrically compensating for variations in the piezoelectric bimorph element 2525. The adjustment unit 4036d adjusts the power supply and control from the control unit / power supply unit 4039 so that the piezoelectric bimorph element 2525 performs an operation without variation. After the adjustment, the repackaging by the resin package 4025 is performed. Alternatively, the package may be repackaged so that the adjustment operation unit or the adjustment circuit pattern of the adjustment unit 4036d is exposed on the surface of the resin package 4025, and the adjustment may be performed after assembly.

  In Embodiment 44 of FIG. 67, similarly to Embodiment 42, a support structure 4000a extending inward from the side surface and upper surface 4007a of the mobile phone 4001 is provided, and the hole of the support structure 4000a By inserting the part, the piezoelectric bimorph element 2525 is held. As described above, in the forty-fourth embodiment, the one end provided with the terminal 2525b is supported, and the one end 2525c provided with the terminal 2525b is a free vibration end. Then, the reaction of the free vibration of one end 2525c is transmitted from the resin package 4025 to the housing of the mobile phone 4001 via the support structure 4000a.

  The various features shown in the embodiments of the present invention can be freely replaced or combined as long as the advantages can be utilized. For example, in Embodiment 44 of FIG. 67, the piezoelectric bimorph element 2525 is supported in parallel to the upper surface, and its main vibration direction is a direction perpendicular to the display surface of the GUI display unit 3405 as shown by an arrow 25h. I have. However, the integrated package structure of the piezoelectric bimorph element 2525 and the circuit 4036 shown in the embodiment 44 is not limited to the arrangement of FIG. 67, and the embodiment 42 shown in FIGS. 65 (C) and 65 (D). And the supporting arrangement as in the embodiment 43 and its modification shown in FIGS. 66 (A) to 66 (D). The adoption thereof may be performed in accordance with the relationship between FIG. 65A and FIG. 67A. In any case, the terminal 2525b of the piezoelectric bimorph element 2525 is provided similarly to FIG. 65A. One end on the side that is located is the support side.

  Also, the support structures 3800a, 3900a, and 4000a in the embodiment 42 of FIG. 65 to the embodiment 44 of FIG. 67 are not limited to those extending inward from the side and top surfaces of the mobile phone 4001, and various support structures are possible. For example, the support structure may be configured to extend from only one of the side surface and the upper surface. Furthermore, one extending from either the front or the back, one extending from the front and the top, one extending from the back and the top, one extending from the side and the front, one extending from the side and the rear, three sides of the top, the side and the front Various structures are possible, such as extending from the back side of the corner as an extension from the corner. In any case, by providing the supporting portion of the piezoelectric bimorph element 2525 or the resin package 4025 integral with the piezoelectric bimorph element 2525 inside the housing near the corner, the corner is prevented from being vulnerable to collision, and The corners can be efficiently vibrated by the reaction of the free vibration.

  Furthermore, various features shown in each embodiment of the present invention are not necessarily specific to each embodiment, and the features of each embodiment may be appropriately modified and utilized as long as the advantages can be utilized. And can be used in combination. For example, in the first embodiment of FIG. 1, the second embodiment of FIG. 5, the third embodiment of FIG. 6, and the thirty-fifth embodiment of FIG. 55, two piezoelectric bimorph elements for the right ear and the left ear are respectively provided in the mobile phone. Provided. However, examples in which a plurality of piezoelectric bimorph elements are provided at a plurality of locations on a mobile phone to obtain desired cartilage conduction from a plurality of directions are not limited to these. On the other hand, in Example 39 of FIG. 61, Example 40 of FIG. 62, the second modification of Example 42 in FIG. 65 (D), and the second modification of Example 43 in FIG. When generating cartilage conduction in multiple directions, such as the upper surface and the front, the vibration component is divided by making the main vibration direction of one piezoelectric bimorph element oblique, but this is the configuration that generates cartilage conduction in multiple directions. It is not limited to.

  FIG. 68 is a cross-sectional view of Example 45 according to an embodiment of the present invention, and shows another example of a configuration that generates cartilage conduction in a plurality of directions, such as the above-described side and front, top and front, and the like. It is. Specifically, in the mobile phone 4101a of Embodiment 45 shown in FIG. 68A and the mobile phone 4101b of the modification shown in FIG. 68B, one piezoelectric bimorph element is used as in Embodiment 40 of FIG. Instead of dividing the vibration component, two piezoelectric bimorph elements are employed according to the embodiment 35 of FIG. 55 and the like. The piezoelectric bimorph elements 4124 and 4126 are supported inside the housing of the mobile phone with their main vibration directions differing from each other by 90 degrees so that they are parallel to the front and the side, or to the front and the top, respectively. As a result, cartilage conduction is generated in a plurality of directions, such as the side and front, and the top and front, as in the embodiment 40 of FIG. Example 45 of FIG. 68 has the same configuration as that of Example 40 of FIG. 62 except that two piezoelectric bimorph elements are employed, so that the same parts are denoted by the same reference numerals and the description thereof is omitted. Incidentally, FIGS. 68 (A) and 68 (B) correspond to FIGS. 62 (A) and 62 (C), respectively.

  Although FIG. 68 illustrates an example in which the two piezoelectric bimorph elements are arranged so that the longitudinal directions thereof are parallel to each other, the arrangement of the plurality of piezoelectric bimorph elements is not limited to this. For example, an arrangement in which the longitudinal directions of two piezoelectric bimorph elements are orthogonal to each other such that one is along the upper surface and the other is along the side surface is possible. Further, the support of the plurality of piezoelectric bimorph elements having different main vibration directions is not limited to the inside of the mobile phone casing as shown in FIG. 68. As in the modification, the support may be provided outside the housing.

  FIG. 69 is a perspective view and a sectional view of Example 46 according to the embodiment of the present invention, which are configured as a mobile phone 4201. The embodiment 46 is also common to the embodiment 38 shown in FIGS. 58 to 60 except for the arrangement of the cartilage conduction vibration source 2525 constituted by the piezoelectric bimorph element and the holding structure thereof. The illustration is omitted, and the common parts are given the same numbers, and the explanation is omitted unless necessary.

  FIG. 69 (A) is a perspective view of the mobile phone 4201 of Example 44 viewed from the front. The elasticity serving as a protector is provided at four corners that are easily exposed to collision when the mobile phone 4201 is accidentally dropped. Body parts 4263a, 4263b, 4263c and 4263d are provided. The inside of the elastic portions 4263a and 4263b at the upper two corners also serves as a holding portion of the piezoelectric bimorph element, and the outside of the elastic portions 4263a and 4263b also serves as a cartilage conduction portion that comes into contact with the ear cartilage. For this reason, at least the elastic portions 4263a and 4263b are made of an elastic material (silicone-based rubber, a mixture of silicone-based rubber and butadiene-based rubber, natural rubber, or an air bubble sealed with these materials) having an acoustic impedance similar to that of the ear cartilage. Or a structure in which a layer of air bubbles as seen in a transparent packing sheet material is separated and sealed with a thin film of a synthetic resin).

  FIG. 69B is a cross-sectional view of the mobile phone 4201 cut along a plane perpendicular to the front and side surfaces along a B1-B1 cut surface in FIG. 69A. As is clear from FIG. 69B, both ends of the piezoelectric bimorph element 2525 are supported by the insides of the elastic portions 4263a and 4263b. The elastic portion 4263a supports the terminal 2525b side of the piezoelectric bimorph element 2525, and the flexible wiring 3836a connecting the terminal 2525b and the circuit 3836 passes therethrough.

  The elastic portions 4263a and 4263b are fixedly supported by the housing of the mobile phone 4201. However, the elasticity of the elastic portions 4263a and 4263b ensures a certain degree of freedom of movement at both ends of the piezoelectric bimorph element 2525 due to vibration. Thus, the inhibition of the vibration of the piezoelectric bimorph element 2525 is reduced. In addition, the central portion of the piezoelectric bimorph element 2525 is not in contact with anywhere, and free vibration is possible. The outer sides of the elastic bodies 4263a and 4263b form the outer corners of the cell phone 4201, serve as a protector against collision with the outside, and also serve as a cartilage conduction part that contacts the ear cartilage. As a result, for example, as described in the first embodiment in FIGS. 2A and 2B, the mobile phone 4201 can be brought into contact with both the right ear and the left ear for cartilage conduction. It becomes possible. Further, since the acoustic body of the housing of the mobile phone 4201 and the elastic portions 4263a and 4263b have different acoustic impedances, a conductive component from the elastic body portions 4263a and 4263b to the housing of the mobile phone 4201 can be reduced, and the elastic body portion 4263a or 4263b has Efficient cartilage conduction to the ear cartilage can be realized.

  FIG. 69C is a cross-sectional view of the mobile phone 4201 cut along a plane perpendicular to the front surface and the top surface along a B2-B2 cut surface illustrated in FIG. 69A or 69B. FIG. 69 (C) also shows that the elastic portions 4263a and 4263b hold the piezoelectric bimorph element 2525 and are firmly supported by the housing of the mobile phone 4201, and the outside forms a corner outer wall of the mobile phone 4201. It can be seen that it serves as a protector for collision with the outside and also serves as a cartilage conduction part that contacts the ear cartilage. As is clear from FIG. 69 (C), in the forty-sixth embodiment, the elastic portions 4263c and 4263d at the lower two corners exclusively function as protectors, and are configured to cover the housing of the mobile phone 4201. It has become.

  70A and 70B relate to Example 47 according to the embodiment of the present invention. FIG. 70A is a perspective view showing a part of the upper end side, and FIG. It is sectional drawing which shows BB cross section of A). The embodiment 70 is also configured as a mobile phone 4301 and has a structure in which the piezoelectric bimorph element 2525 is fitted to the side of the mobile phone. This structure has many parts in common with the embodiment 30 shown in FIG. 48. Therefore, the common parts are denoted by the same reference numerals and description thereof is omitted. 70, illustration and description of the configuration and the like for inputting an audio signal to the cartilage conduction vibration source 2525 are omitted as in FIG.

  The embodiment 47 in FIG. 70 differs from the embodiment 30 in FIG. 48 in the structure of the portion that transmits the vibration of the piezoelectric bimorph element 2525 to the ear cartilage. That is, in the embodiment 47 of FIG. 70, a concave portion 4301a having a small step (for example, 0.5 mm) is provided on the side surface of the mobile phone 4301, and the vibration surface of the piezoelectric bimorph element 2525 comes to the bottom of the concave portion 4301a. It is arranged as follows. Although the vibration surface of the piezoelectric bimorph element 2525 may be exposed at the bottom of the concave portion 4301a, in the forty-seventh embodiment, the piezoelectric bimorph element 2525 is covered with a thin protective layer 4227. The protective layer 4227 is attached or coated with an elastic material so as not to hinder the expansion and contraction of the vibration surface due to the vibration of the piezoelectric bimorph element 2525.

  With the above structure, the vibrating surface of the piezoelectric bimorph element 2525 can be brought into direct contact with the ear cartilage as much as possible, and the piezoelectric bimorph element 2525 can be protected from being damaged by collision with the outside. That is, the piezoelectric bimorph element 2525 is disposed at the bottom of the concave portion 4301a and is located at a position lower than the outer surface of the mobile phone 4301 by a step difference. The piezoelectric bimorph element 2525 does not directly collide with the outside. As shown in FIG. 70A, in Example 47, the concave portion 4301a was slightly lowered from the corner on the side surface of the mobile phone 4301 so that the piezoelectric bimorph element 2525 was not damaged by the collision of the corner. It is provided in. Since the ear cartilage is soft, even if the vibrating surface of the piezoelectric bimorph element 2525 is arranged at the bottom of the concave portion 4301a, it is easily deformed at a small step to come into contact with the vibrating surface of the piezoelectric bimorph element 2525 or the covering surface thereof. Can be.

  The various features shown in the embodiments of the present invention can be freely modified, replaced or combined as long as the advantages can be utilized. For example, in the embodiment 46 of FIG. 69, the elastic portions 4263a and 4263b are arranged symmetrically with respect to the center of the piezoelectric bimorph element 2525, but the support of the piezoelectric bimorph element 2525 is limited to such an arrangement. Instead, the piezoelectric bimorph element 2525 may be eccentrically arranged so that the center of the element is close to any of the opposing corners. For example, the piezoelectric bimorph element 2525 is not completely symmetrical with respect to its center, and there is a slight difference in the weight and the degree of freedom of vibration between the side with and without the terminal 2525b. Further, a wiring 3836a passes through the elastic body portion 4263a supporting the terminal 2525b side, and leads to the circuit 3836. The configuration in which the piezoelectric bimorph element 2525 is eccentrically supported between the two corners is effective for compensating the asymmetry as described above. The length of each of the elastic portions 4263a and 4263b needs to be determined by the length of the piezoelectric bimorph element 2525 and the width of the housing of the mobile phone 4201. In other words, each of the elastic portions 4263a and 4263b needs to have a length that reaches from both outer corners of the housing of the mobile phone 4201 to both ends of the piezoelectric bimorph element 2525. The configuration in which the piezoelectric bimorph element 2525 is eccentrically supported between both corners is also effective in adjusting the length as described above while considering the layout of the mounted components in the mobile phone. When the elastic portion 4263a or 4263b is long, the elastic portion 4263a or 4263b is extended inward so as not to be in contact with the inner surface of the housing so as to reach the end of the piezoelectric bimorph element 2525. It is also possible to increase the degree of freedom of vibration of the end of the element 2525.

  FIG. 71 is a perspective view and a cross-sectional view of a modification of Example 46 according to the embodiment of the present invention, and show an example of a configuration in the case where the elastic portion is elongated as described above. In other words, as shown in FIG. 71, when the elastic portions 4263a and 4263b are long, extension portions 4263e and 4263f are provided by extending the elastic portions 4263a and 4263b inward so as not to contact the inner surface of the housing of the mobile phone 4201. A configuration is employed in which both ends of the piezoelectric bimorph element 2525 are held by the extension portions 4263e and 4263f. According to this configuration, the extension portions 4263e and 4263f are not in contact with the inner surface of the housing of the mobile phone 4201, so that the extension portions 4263e and 4263f can be easily elastically deformed, and the extension portions 4263e and 4263f can connect both ends of the piezoelectric bimorph element 2525. By holding, the degree of freedom of vibration of the piezoelectric bimorph element 2525 can be increased. Since the other configurations in FIG. 71 are the same as those in FIG. 69, the common portions are denoted by the same reference numerals and description thereof will be omitted.

  The various features shown in the embodiments of the present invention can be freely modified, replaced or combined as long as the advantages can be utilized. For example, in each of the above embodiments, the cartilage conduction vibration source has been described as being composed of a piezoelectric bimorph element or the like. However, the various features of the present invention are not limited to the case where the piezoelectric bimorph element is used as the cartilage conduction vibration source, except for the case where the configuration is specific to the configuration specific to the piezoelectric bimorph element. Even if various other elements such as a giant magnetostrictive element are used as the cartilage conduction vibration source, the advantage can be enjoyed.

  FIG. 72 is a perspective view and a sectional view of Example 48 according to the embodiment of the present invention, which are configured as a mobile phone 4301. Embodiment 48 is an example in which an electromagnetic vibrator is employed as a cartilage conduction vibration source in the configuration of Embodiment 46 in FIG. FIG. 72A is a perspective view of the mobile phone 4301 of the working example 48 when viewed from the front, and the appearance is the same as that of the working example 46 in FIG. 69A. That is, also in the forty-eighth embodiment, the elastic members 4363a, 4363b, 4363c, and 4363d serving as protectors are provided at the four corners that are easily exposed to collision when the mobile phone 4301 is accidentally dropped. The elastic portions 4363a and 4363b at the upper two corners also serve as a holding portion of the cartilage conduction vibration source, and also serve as a cartilage conducting portion where the outside of the elastic portions 4363a and 4363b contacts the ear cartilage. As in Example 46, the elastic portions 4363a and 4363b are made of an elastic material (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or air bubbles) similar in acoustic impedance to otic cartilage. Or a structure in which a layer of air bubbles as seen in a transparent packing sheet material is separated and sealed with a thin film of a synthetic resin.

  FIG. 72 (B) is a cross-sectional view of the mobile phone 4301 (denoted as 4301a in FIG. 72 (B)) cut along a plane perpendicular to the front and side surfaces along a cut plane BB in FIG. 72 (A). As is clear from FIG. 72 (B), electromagnetic vibrators 4326a and 4324a are embedded in the elastic portions 4363a and 4363b, respectively. The main vibration direction is a direction perpendicular to the front surface of the mobile phone 4301 provided with the GUI display unit, as indicated by an arrow 25m. In the configuration in which the cartilage conduction vibration sources such as the electromagnetic vibrators 4326a and 4324a are embedded in the elastic members 4363a and 4363b, the elastic members 4363a and 4363b have both the protector function and the cartilage conduction member function as described above. As described in the embodiment, it also has a buffer function of protecting the cartilage conduction vibration source from impact.

  In a configuration in which separate electromagnetic vibrators 4326a and 4324a are provided for the elastic portions 4363a and 4363b, respectively, as in Embodiment 48 in FIG. 72B, the electromagnetic vibrators 4326a and 4324a can be controlled independently. Therefore, in the same manner as in the first embodiment shown in FIGS. 1 to 4, the inclination direction of the mobile phone 4301 is detected based on the gravitational acceleration detected by the acceleration sensor, and which of the elastic portions 4363a and 4363b touches the ear. (Ie, whether the corner of the mobile phone is in contact with the right ear or the left ear as shown in FIG. 2), and vibrates the electromagnetic vibrator at the lower incline of the other side. Can be turned off. This is the same in a modified example described later.

  FIG. 72 (C) is a cross-sectional view of a first modification of the forty-eighth embodiment. Similar to FIG. 72 (B), the mobile phone 4301 (FIG. (C) is a cross-sectional view taken along a plane perpendicular to the front and side surfaces. In the first modification, similarly to the forty-eighth embodiment, the electromagnetic vibrators 4326b and 4324b are embedded in the elastic members 4363a and 4363b, respectively. However, the main vibration direction is a direction perpendicular to the side surface of the mobile phone 4301 as shown by an arrow 25n. Other points are the same as those of the embodiment 48 in FIG. 72 (B).

  FIG. 72D is a cross-sectional view of a second modification of the forty-eighth embodiment. Similar to FIG. 72B, the mobile phone 4301 (FIG. 72) is cut along the line BB in FIG. FIG. 4D is a cross-sectional view taken along a plane perpendicular to the back surface and the side surface. In the second modified example, similarly to the forty-eighth embodiment, electromagnetic vibrators 4326c and 4324c are embedded in the elastic portions 4363a and 4363b, respectively. However, the main vibration direction is a direction inclined by 45 degrees from the side surface of the mobile phone 4301 as shown by an arrow 25p. Therefore, in the same manner as in the second modification of the embodiment 43 in FIG. 66 (D), the vibration component is decomposed in the direction perpendicular to the side surface and the direction perpendicular to the front surface perpendicular thereto, and the elastic body portion 4363a or 4363b The same degree of cartilage conduction can be obtained by contacting the cartilage with the ear cartilage from any direction. Other points are the same as those of the embodiment 48 in FIG. 72 (B).

  FIG. 72 (E) is a cross-sectional view of a third modification of the forty-eighth embodiment. Similar to FIG. 72 (B), the mobile phone 4301 (FIG. (E) is a cross-sectional view taken along a plane perpendicular to the front and side surfaces. In the third modified example, electromagnetic vibrators 4326d, 4326e and 4324d, 4324e are embedded in elastic portions 4363a, 4363b, respectively. The direction of vibration is perpendicular to the side surface indicated by arrow 25d for the electromagnetic vibrators 4326d and 4324d, and is perpendicular to the front surface indicated by arrow 25e for the electromagnetic vibrators 4326e and 4324e. . Thus, in the same manner as in the embodiment 45 shown in FIG. 68, cartilage conduction is generated from the plurality of different cartilage conduction vibration sources on the side and the front, respectively.

  As in the third modification of the forty-eighth embodiment shown in FIG. 72 (E), vibration in the direction perpendicular to the side surface is generated from the electromagnetic vibrator 4324d and the like, and vibration in the direction perpendicular to the front is generated from the electromagnetic vibrator 4324e and the like. Is generated, the electromagnetic vibrators 4324d and 4324e having different vibration directions can be controlled independently. Specifically, the inclination direction of the mobile phone 4301 is detected by the gravitational acceleration detected by an acceleration sensor such as the acceleration sensor 49 of the first embodiment shown in FIG. Depending on whether the ear is placed on the ear, the electromagnetic vibrator on the ear may be vibrated and the other vibration may be turned off. Note that such independent control of a plurality of cartilage conduction vibration sources having different vibration directions is not limited to the case of the electromagnetic vibrator in FIG. 72 (D). For example, the piezoelectric bimorph of Example 45 shown in FIG. This is also possible in the case of a configuration employing the elements 4124 and 4126.

  FIG. 73 is an enlarged sectional view of a main part of the embodiment 48 and its modification. FIG. 73A is an enlarged view of the elastic body portion 4363b and the electromagnetic vibrator 4324a of FIG. 72B, and particularly shows details of the electromagnetic vibrator 4324a. In the electromagnetic vibrator 4324a, a yoke 4324h holding a magnet 4324f and a central magnetic pole 4324g is suspended in the housing by a corrugation damper 4324i. A top plate 4324j having a gap is fixed to the magnet 4324f and the central magnetic pole 4324g. Thus, the magnet 4324f, the central magnetic pole 4324g, the yoke 4324h, and the top plate 4324j are integrally movable with respect to the housing of the electromagnetic vibrator 4324a in the vertical direction as viewed in FIG. On the other hand, a voice coil bobbin 4324k is fixed inside the housing of the electromagnetic vibrator 4324a, and the voice coil 4323m wound therearound enters the gap of the top plate 4324j. In this configuration, when an audio signal is input to the voice coil 4323m, relative movement occurs between the yoke 4324h and the housing of the electromagnetic vibrator 4324a, and the vibration contacts the yoke 4324h via the elastic body portion 4363b. Conduction to the ear cartilage.

  FIG. 73 (B) shows a fourth modification of the forty-eighth embodiment, and shows an enlarged view of a portion corresponding to FIG. 73 (A). Note that the internal configuration of the electromagnetic vibrator 4324a is the same as that in FIG. 73A, so that the illustration of the numbers of each part is omitted to avoid complication, and the description thereof is omitted. In the fourth modification example in FIG. 73B, a step portion 4401g is provided at a corner of the mobile phone 4401, and an elastic body portion 4463b is covered on the outside thereof. A window 4401f is provided on the front side of the step portion 4401g, and an electromagnetic vibrator 4324a is bonded to the back side of the elastic body 4463b facing the window 4401f. Further, a buffer portion 4363f made of an elastic body is bonded to the opposite side of the electromagnetic vibrator 4324a. The buffer portion 4363f has a gap so as not to contact the back side of the step portion 4401g in a normal vibration state, and the back side of the step portion 4401g when the elastic body portion 4463b is excessively pushed in due to a collision with the outside. And acts as a cushioning material to prevent the elastic portion 4463b from being pushed further freely. This prevents inconveniences such as separation of the electromagnetic vibrator 4324a due to deformation of the elastic body portion 4463b. Further, the buffer portion 4363f also functions as a balancer in a normal vibration state, and can be designed by adjusting the shape, weight, and the like so that the acoustic characteristics of the electromagnetic vibrator 4324a are optimized. When functioning only as a balancer, buffer section 4363f may be a rigid body instead of an elastic body. Although not shown in FIG. 73 (B), the opposite corner (corresponding to the position of the elastic portion 4363a in FIG. 72 (B)) in the fourth modification of the working example 48 is also shown in FIG. The configuration is symmetrical with that of B).

  The fourth modification of FIG. 73B is based on the arrangement of the electromagnetic vibrators in the orientation of FIG. 72B. However, the configuration as in the fourth modification is not limited to this, and can be applied to the arrangement of the electromagnetic vibrators in various directions in FIGS. 72 (C) to 72 (E).

  In the embodiment 48 shown in FIGS. 72 and 73 (A), the elastic body portion 4363b and the electromagnetic vibrator 4324a are configured as replaceable unit parts. When the appearance of the elastic body portion 4363b is damaged by collision with the outside, the elastic body portion 4363b and the electromagnetic vibrator 4324a can be exchanged as a unit from an aesthetic standpoint. This point is the same in the fourth modification of the embodiment 48 shown in FIG. 73 (B), and the elastic body portion 4463b, the electromagnetic vibrator 4324a and the buffer portion 4363f are configured as replaceable unit parts. When the appearance of the elastic body portion 4463b is aesthetically damaged, the whole can be replaced as a unit. Such a unit component configuration is a useful feature that corresponds to the fact that the elastic body portion 4463b and the like are configured as protectors and are located at corners where collision with the outside is expected. In addition, the corners exposed to the collision are a useful feature which also indicates that they are a suitable place for contact for cartilage conduction. Furthermore, the feature that the cartilage conduction vibrating part is configured as a replaceable unit part is that the configuration of the other parts of the mobile phone is basically common, and the cartilage conduction vibrating part of the optimal acoustic characteristics according to the age of the user and the like. It is also useful for providing a product to which a buffer (for example, the shape and weight of the buffer portion 4363f shown in FIG. 73B is adjusted) is attached. Further, not only the acoustic characteristics but also the configuration of other parts of the mobile phone are basically made common, and any one of the cartilage conduction vibrating parts shown in FIGS. 72 (B) to 72 (E) is adopted according to the user's preference. It is also useful in providing a product by changing the order according to the order.

  The specific configuration of providing the cartilage conduction vibration source in the elastic portion of the corner is not limited to that shown in FIG. 73, and the design can be changed as appropriate. For example, buffer portion 4363f shown in FIG. 73B may be bonded to the back side of step portion 4401g instead of bonding to the opposite side of electromagnetic vibrator 4324a. In this case, a gap is provided in the buffer portion 4363f so as not to contact the opposite side of the electromagnetic vibrator 4324a in a normal vibration state. When the elastic portion 4463b can withstand pushing due to collision with the outside or the like, the buffer portion 4363f may be omitted.

  The various features of each embodiment described above are not limited to the above-described embodiment, and can be implemented in other embodiments as long as the advantages can be enjoyed. Further, various features of each embodiment are not limited to the individual embodiments, and can be replaced or combined with features of other embodiments as appropriate. For example, in the forty-eighth embodiment and its modifications, an electromagnetic vibrator is used as the cartilage conduction vibrating part, and another independently controllable electromagnetic vibrator is provided in the elastic body part having a different angle. showed that. However, implementation of the present invention is not limited to this. For example, as described above, even when the piezoelectric bimorph element is used as the cartilage conduction vibration unit, the cartilage conduction vibration units provided separately at different corners are controlled independently of each other as in the first embodiment of FIG. Can be. In this case, the piezoelectric bimorph element can be provided on the elastic body portions having different angles according to the forty-eighth embodiment. Conversely, even when an electromagnetic vibrator is employed as the cartilage conduction vibrating portion, the fourth embodiment of FIG. 7, the fifth embodiment of FIG. 11, the tenth embodiment of FIG. 19, the eleventh embodiment of FIG. As described above, it is also possible to configure so that the vibration of one electromagnetic vibrator is transmitted to the left and right corners. In this case, regardless of whether the cartilage conduction vibrating portion is a piezoelectric bimorph element or an electromagnetic vibrator, the vibration conductor for the left and right corners can be formed of an elastic body according to Example 48. . Further, depending on the shape of the electromagnetic vibrator, both sides of the electromagnetic vibrator may be supported by elastic bodies provided at the left and right corners according to Embodiment 46 and its modifications.

  FIG. 74 is a perspective view and a cross-sectional view of Example 49 and a modification thereof according to the embodiment of the present invention, which are configured as a mobile phone 4501. The embodiment 49 is the same as the embodiment 46 shown in FIG. 69 except for a configuration for switching the air conduction to be described later. Specifically, embodiment 49 is illustrated in FIGS. 74 (A) to 74 (D), of which FIGS. 74 (A) to 74 (C) are FIGS. 69 (A) relating to embodiment 46. FIG. 69 (C) corresponds to FIG. FIG. 74D is an enlarged view of a main part of FIG. 74C. FIG. 74E is an enlarged view of a main part according to a modification of the forty-ninth embodiment.

  As is clear from the cross section taken along line B2-B2 of FIG. 74C, in Example 49, a transparent resonance box 4563 for generating air conduction is provided so as to cover the display portion 3405. The transparent resonance box 4563 is hollow and has an air vent hole in a part inside the mobile phone 4501. Further, since the transparent resonance box 4563 is extremely thin, a user can observe the display unit 3405 through the transparent resonance box 4563. Further, as is clear from FIGS. 74 (B) and 74 (C), a vibration conductor 4527 slidable in the vertical direction is provided at the center of the piezoelectric bimorph element 2525. When the vibration conductor 4527 is at the position shown by the solid line in FIG. 74 (C), the transmission of vibration from the central portion of the piezoelectric bimorph element 2525 to the transparent resonance box 4563 is cut off, and the vibration conductor 4527 is When it is at the position shown by the broken line in FIG. 74C and is in contact with the upper part of the transparent resonance box 4563, the vibration of the central portion of the piezoelectric bimorph element 2525 is transmitted to the transparent resonance box 4563 via the vibration conductor 4527. Thereby, air conduction sound is generated from the entire transparent resonance box 4563, and the entire transparent resonance box 4563 becomes a surface speaker. This situation is clearly shown in the enlarged view of the main part of FIG. 74 (D). Note that the vibration conductor 4527 is moved up and down by sliding a manual operation knob 4527a outside the mobile phone 4501 up and down. The manual operation knob 4527a has a click mechanism for determining the upper and lower positions. Further, the vibration conductor 4527 has a spring property so as to be effectively pressed against the transparent resonance box 4563 when slid to the position indicated by the broken line.

  As described above, when the vibration conductor 4527 is in the position shown by the broken lines in FIGS. 74 (C) to (D), air conduction sound is generated from the entire transparent resonance box 4563, and cartilage is generated from the elastic members 4263a and 4263b. Conduction occurs. Therefore, the user can hear the sound by cartilage conduction by touching the elastic body portion 4263a or 4263b to the ear, and determine whether any part of the display portion 3405 provided with the transparent resonance box 4563 is close to or touching the ear. You can also hear the sound by air conduction. In this way, various uses are possible according to the user's preference and situation. On the other hand, when the vibration conductor 4527 is in the position shown by the solid line in FIGS. 74 (C) to (D), the transmission of vibration to the transparent resonance box 4563 is interrupted, and the generation of air conduction sound from the transparent resonance box 4563 is stopped. Therefore, it is possible to hear the sound by cartilage conduction, while preventing the surroundings from being disturbed by the leakage of air due to air conduction and leaking privacy, particularly in a quiet environment.

  A modification of the embodiment 49 in FIG. 74 (E) is configured to intermittently transmit the vibration from the central portion of the piezoelectric bimorph element 2525 to the transparent resonance box 4563 by rotating the vibration conductor 4527b. . Specifically, when the vibration conductor 4527b is located at the position shown by the solid line in FIG. Communication is cut off. On the other hand, when the vibration conductor 4527b is rotated clockwise and is at the position shown by the broken line in FIG. The vibration of the central portion of the piezoelectric bimorph element 2525 is transmitted to the transparent resonance box 4563 via the vibration conductor 4527b. Other points are the same as those of the embodiment 49 in FIGS. 74 (A) to 74 (D). The rotation of the vibration conductor 4527b is performed by rotating a manual operation dial 4527c outside the mobile phone 4501. The manual operation dial 4527c has a click mechanism for determining two rotational positions. In addition, the vibration conductor 4527b also has a spring property, and when rotated to the position indicated by the broken line, is effectively pressed against the central portion of the piezoelectric bimorph element 2525 and the upper portion of the transparent resonance box 4563.

  The switching between cartilage conduction and air conduction as described above is not limited to the embodiment 49 shown in FIG. 74 and its modifications, and various configurations are possible. For example, in FIG. 74, the intermittent vibration is performed by fixing the piezoelectric bimorph element 2525 and the transparent resonance box 4563, and moving the vibration conductor 4527 or 4527b therebetween. However, alternatively, at least one of the piezoelectric bimorph element 2525 and the transparent resonance box 4563 can be made movable to intermittently vibrate between the two. At this time, at least a part of the piezoelectric bimorph element 2525 or the transparent resonance box 4563 may be moved. Further, in FIG. 74, the case of cartilage conduction plus air conduction and the case of only cartilage conduction (strictly, there is some air conduction component, but for simplicity, referred to as “only cartilage conduction”; the same applies hereinafter). Although an example of switching is shown, instead of this, switching between the case of cartilage conduction only and the case of air conduction only, or switching between the case of cartilage conduction plus air conduction and the case of air conduction only is performed. It is also possible to configure. FIG. 74 shows an example of manual switching. However, by providing a noise sensor for determining whether the environment is quiet or not and automatically driving the vibration conductor 4527 or 4527b based on the output of the noise sensor, noise is reduced. When the noise detected by the sensor is equal to or less than a predetermined value, it is possible to automatically switch the case of cartilage conduction plus air conduction to the case of only cartilage conduction.

  FIG. 75 is a block diagram related to Example 50 according to the embodiment of the present invention, which is configured as a mobile phone 4601. The fifteenth embodiment is based on the configuration of the third modification of the forty-eighth embodiment shown in the cross section in FIG. 72 (E). The configuration is substantially the same as that of the block diagram of FIG. 1, and the electromagnetic vibrator is illustrated in a cross-sectional view for the sake of explanation of the arrangement. Since the embodiment 50 is configured as described above, in FIG. 75, the same portions as those in FIG. 72 (E) and FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted unless necessary. In Embodiment 50, since no receiver is provided other than the electromagnetic vibrators 4326d, 4326e, 4324d, and 4324e, the phase adjustment mixer unit 36, the right ear drive unit 4624, and the left ear The driving unit 4626, the air conduction reduction automatic switching unit 4636, and the electromagnetic vibrators 4326d, 4326e, 4324d, and 4324e constitute a receiving unit (the receiving unit 13 in FIG. 3) of the telephone function unit 45. Embodiment 50 configured as described above is another embodiment relating to the switching between cartilage conduction and air conduction shown in Embodiment 49, and performs the switching electrically and automatically. Hereinafter, description will be made focusing on this point.

  As described with reference to FIG. 72 (E), the embodiment 50 in FIG. 75 has a configuration in which cartilage conduction is generated from the plurality of different electromagnetic vibrators 4326e, 4326d, 4324e, and 4324d on the side and the front, respectively. The set of the electromagnetic vibrators 4326d and 4326e embedded in the elastic body part 4363a is controlled by the left ear drive unit 4626, and the electromagnetic vibrators 4324d and 4324e embedded in the elastic body part 4363b are controlled. The set is controlled by the right ear drive 4624. In such a configuration, similarly to the first embodiment, which of the elastic body portions 4363a and 4363b is in contact with the ear is detected by the acceleration sensor 49, and the right ear drive unit 4624 and One of the left ear drive units 4626 is turned on and the other is turned off. Accordingly, one of the set of the electromagnetic vibrators 4326d and 4326e and the set of the electromagnetic vibrators 4324d and 4324e can vibrate, and the other cannot.

  In the embodiment 50 of FIG. 75, an environmental noise microphone 4638 for determining whether or not the environment is quiet is further provided. When the noise detected by the environmental noise microphone 4638 is equal to or more than a predetermined value, the air conduction reduction automatic switching unit 4636 functions according to a command from the control unit 39, and both the electromagnetic vibrators 4326d and 4326e or the electromagnetic vibrating The vibrators 4324d and 4324e are both vibrated. On the other hand, in a quiet situation in which the control unit 39 determines that the noise detected by the environmental noise microphone 4638 is equal to or less than a predetermined value, only the electromagnetic vibrator 4326d or only the electromagnetic vibrator 4324d is provided by the function of the air conduction reduction automatic switching unit 4636. Is vibrated, and the vibrations of the electromagnetic vibrators 4326e and 4324e are stopped. For the purpose of detecting the magnitude of the environmental noise, instead of separately providing a dedicated environmental noise microphone 4638 as shown in FIG. 75, the microphone output of the transmitting section 23 of the telephone function section 45 is diverted. Noise components may be extracted. This extraction can be performed by analyzing the frequency spectrum of the microphone output, using the microphone output when the sound is interrupted, and the like.

  Next, the significance of the above configuration will be described. As described in FIG. 72 (E), the vibration directions of the electromagnetic vibrators 4326d and 4324d in the embodiment 50 of FIG. 75 are directions perpendicular to the side surfaces, and the vibration directions of the electromagnetic vibrators 4326e and 4324e are Direction perpendicular to the front. Since the electromagnetic vibrators 4326e and 4324e vibrate in a direction perpendicular to the front surface on which the display unit 5 and the like are arranged, the entire front surface of the mobile phone 4601 having a large area resonates, and the electromagnetic vibrators 4326d and 4324d have side surfaces. The air conduction component becomes large as compared with the vibration of. Therefore, when corresponding to Example 49, when both the electromagnetic vibrators 4326e and 4326d vibrate, or when both the electromagnetic vibrators 4324e and 4324d vibrate, "the cartilage conduction plus air conduction" Case ". On the other hand, the case where only the electromagnetic vibrator 4326d vibrates or the case where only the electromagnetic vibrator 4324d vibrates corresponds to “the case of only cartilage conduction”. As described in Example 49, even in the case of “only cartilage conduction”, there are some air-conducting components. Therefore, this case is based solely on the relative comparison of the sizes of the air-conducting components.

  As described above, when both of the electromagnetic vibrators 4326e and 4326d vibrate, or when both of the electromagnetic vibrators 4324e and 4324d vibrate, the user places the elastic body portion 4263a or 4263b on the ear. The sound can be heard by cartilage conduction, and the sound can be heard by air conduction by bringing an arbitrary part of the front of the mobile phone 4601 close to or touching the ear. In this way, various uses are possible according to the user's preference and situation. On the other hand, when only the electromagnetic vibrator 4326d vibrates, or when only the electromagnetic vibrator 4324d vibrates, the generation of air conduction is relatively small, and especially in a state where the environment is quiet, sound leakage due to air conduction is reduced. Therefore, it is possible to hear the sound by cartilage conduction while preventing the surroundings from being disturbed or leaking privacy. In the embodiment 50, the functions of the environmental noise microphone 4638 and the automatic air conduction reduction automatic switching unit 4636 automatically reduce air conduction in a quiet environment.

  The embodiment 50 shown in FIG. 75 employs an electromagnetic vibrator. The configuration for electrically and automatically switching between cartilage conduction and air conduction is an electromagnetic vibrator as a cartilage conduction vibration source. 68. For example, when a plurality of independently controllable piezoelectric bimorph elements are provided in different directions from each other as in the embodiment 45 in FIG. It can be performed automatically according to. Further, in the embodiment 50 of FIG. 75, a transparent resonance box 4563 for generating air conduction as in the embodiment 49 of FIG. 74 is provided, and one or both of the electromagnetic vibrator 4326e and the electromagnetic vibrator 4324e are provided with such a structure. By always contacting the transparent resonance box 4563, it is possible to generate air conduction positively from the front of the mobile phone 4601.

  The various features of each embodiment described above are not limited to the above-described embodiment, and can be implemented in other embodiments as long as the advantages can be enjoyed. Further, various features of each embodiment are not limited to the individual embodiments, and can be replaced or combined with features of other embodiments as appropriate. For example, in the present invention, a contact portion with an ear for cartilage conduction is provided at a corner of a mobile phone. This feature is considered for a mobile phone 301 (hereinafter, simply referred to as a smart phone 301) configured as a smart phone as in the fourth embodiment in FIG. 7, for example. As shown in FIG. 7, the smartphone 301 has a large-screen display unit 205 having a GUI function in front of the smartphone 301, and the normal reception unit 13 is arranged to be driven to the upper corner of the smartphone 301. In addition, since the normal receiving unit 13 is provided in the central portion of the smartphone 301, when the smartphone 301 is put on the ear, the large screen display unit 205 hits the cheekbones, and the receiving unit 13 is hard to approach the ear. At the same time, if the normal receiver 13 is strongly pressed against the ear to hear the other party's voice well, the large screen display unit 205 comes into contact with the ear or cheek and is contaminated with sebum or the like. In contrast, when the right ear vibrating portion 224 and the left ear vibrating portion 226 are arranged at the corners of the smartphone 301 in FIG. 7, as shown in FIG. It fits in a depression around the mouth of the ear canal. This makes it possible to easily press the sound output unit of the smartphone 301 around the external auditory canal, and even when strongly pressing, it is possible to naturally prevent the large screen display unit 205 from touching the ears and cheeks. Such an arrangement of the voice output unit at the corner of the mobile phone is useful not only in the case of cartilage conduction but also in the case of a reception unit using a normal air conduction speaker. In this case, it is desirable to provide air conduction speakers for the right ear and the left ear at the upper two corners of the smartphone.

  Further, as described above, the cartilage conduction differs depending on the magnitude of the pressing force applied to the cartilage. When the pressing force is increased, a more effective conduction state can be obtained. This means that if the received sound is difficult to hear, a natural action of increasing the force of pressing the mobile phone against the ear can be used for volume control. If the pressing force is further increased to a state where the ear canal is closed, the volume is further increased due to the effect of the ear plug bone conduction. Such a function can be naturally understood by the user through a natural action without having to explain the function to the user in, for example, an instruction manual. Such an advantage in use can be realized in a simulated manner even in the case of a receiving unit using a normal air-conducting speaker without employing a cartilage conduction vibrating unit as an audio output unit. It can be a feature.

  FIG. 76 is a block diagram related to Example 51 according to the embodiment of the present invention, which is configured as a mobile phone 4701. In addition, the embodiment 51 does not employ the cartilage conduction vibrator as the audio output unit as described above, but employs a normal air conduction speaker, so that automatic volume control by natural action can be realized in a pseudo manner. It is composed. In addition, for the sake of explanation of the external arrangement, a schematic diagram of the mobile phone is mixed in the block diagram. Note that most of the block diagram in FIG. 76 is common to the first embodiment in FIG. 3 and most of the overview is common to the fourth embodiment in FIG. 7. I will omit the explanation unless otherwise. The volume / sound quality automatic adjustment unit 4736, the right ear drive unit 4724, the left ear drive unit 4726, the right ear air conduction speaker 4724a, and the left ear air conduction speaker 4726a shown in FIG. A receiving unit 45 (the receiving unit 13 in FIG. 3) is configured.

  The air conduction speaker for right ear 4724a of the embodiment 51 in FIG. 76 is controlled by the driving unit for right ear 4524, and the air conduction speaker for left ear 4726a is controlled by the driving unit for right ear 4526. Then, in the same manner as in the embodiment 50, the acceleration sensor 49 detects which of the right ear air conduction speaker 4724a and the left ear air conduction speaker 4726a is in contact with the ear, and drives the right ear air conduction speaker 4724a. One of the unit 4524 and the left ear drive unit 4526 is turned on, and the other is turned off. Accordingly, one of the air conduction speaker for right ear 4724a and the air conduction speaker 4726a for left ear is turned on and the other is turned off.

  A right ear pressure sensor 4742a and a left ear pressure sensor 4742b are provided near the right ear air conduction speaker 4724a and the left ear air conduction speaker 4726a, respectively. The pressing of the turned-on air guiding speaker 4726a is detected. Then, the left / right pressing sensor processing section 4742 analyzes the magnitude of the detected pressing, and sends the volume / sound quality control data to the control section 39. Based on the volume / sound quality control data, the control unit 39 instructs the volume / sound quality automatic adjustment unit 4736 to automatically adjust the volume of the right ear drive unit 4524 or the left ear drive unit 4526 that is turned on. . The volume is basically adjusted so that the volume is increased as the pressure is increased, and is set so as to be suitable as a response to a natural action of increasing the force of pressing the mobile phone 4701 against the ear if the received sound is difficult to hear. .

  Supplementing the details of the function of the automatic volume / tone control section 4736, in order to avoid an unstable volume change due to a pressure change, first, the volume change responds only to an increase in the pressure and the volume changes stepwise only in the increasing direction. Be composed. Further, in order to avoid an unintended volume change, the volume / sound quality automatic adjustment unit 4736 responds only when the predetermined press increase has continued on average for a predetermined time (for example, 0.5 seconds) or more, and gradually increases the volume. It is configured to Further, the automatic volume / tone control unit 4736 reduces the pressure to a predetermined value or less (corresponding to a state in which the on-side air conduction speaker 4724a for the right ear and the air conduction speaker 4726a for the left ear are separated from the ears). When it is detected that the touched state has continued for a predetermined time (for example, 1 second) or more, the sound volume is reduced to the standard state at a stretch. This allows the user to intentionally release the mobile phone 4701 from his / her ear a little when the volume is excessively increased (this also matches the natural operation of moving the sound source away from the ear if the volume is too loud). After resetting to the standard state, the pressing force can be increased again to obtain a desired sound volume.

  The volume / sound quality automatic adjustment unit 4736 can also automatically adjust the sound quality. This function is related to the environmental noise microphone 38 described with reference to the first embodiment in FIG. That is, in the first embodiment, the environmental noise picked up by the environmental noise microphone 38 is inverted into a waveform, and then mixed with the cartilage conduction vibration unit 24 for the right ear and the cartilage conduction vibration unit 26 for the left ear. The environmental noise included in the information is canceled to make it easier to hear the voice information of the other party. The automatic volume / sound quality adjustment unit 4736 in the embodiment 51 uses this function, and turns off the noise canceling function when the pressure is equal to or less than a predetermined value, and turns on the noise canceling function when the pressure is equal to or more than a predetermined value. Note that the noise canceling function can be increased or decreased stepwise or continuously by adjusting the mixing amount of the environmental noise inversion signal in a stepwise manner as well as simply turning on and off. In this way, the automatic volume / tone control unit 4736 can automatically adjust not only the volume but also the tone based on the output of the left / right pressing sensor processing unit 4742. In the embodiment 51 shown in FIG. 76, the above-described advantage in disposing the right ear audio output unit and the left ear audio output unit at the corners of the smartphone is not limited to the case where the cartilage conduction is adopted, but is the same as that of the normal case. This is an example showing that the present invention can be enjoyed even when a reception unit using a guiding speaker is adopted.

  The various features of each embodiment described above are not limited to the above-described embodiment, and can be implemented in other embodiments as long as the advantages can be enjoyed. Further, various features of each embodiment are not limited to the individual embodiments, and can be replaced or combined with features of other embodiments as appropriate. For example, in Embodiment 51 of FIG. 76, it is determined which of the right ear air conduction speaker 4724a and the left ear air conduction speaker 4726a is turned on based on the output of the acceleration sensor 49. The output of the left ear pressure sensor 4742b may be used to turn on one of the right ear air conduction speaker 4724a and the left ear air conduction speaker 4726a corresponding to the greater pressure and turn off the other. Good.

  In the embodiment 51 shown in FIG. 76, the air conduction speaker 4724a for the right ear and the air conduction speaker 4726a for the left ear, and the corresponding pressure sensors 4742a and 4742b for the right ear are provided. For the purpose of automatic volume / sound quality adjustment only by using the conventional method, one conventional air conduction speaker may be provided at the upper center of the mobile phone, and one press sensor may be provided correspondingly. In Embodiment 51 of FIG. 76, cancellation of environmental noise by waveform inversion is shown as a specific configuration of automatic sound quality adjustment by the automatic volume / sound quality adjustment unit 4736, but the present invention is not limited to such a configuration. For example, a filter (for example, a low-frequency cut filter) that cuts environmental noise is provided in the automatic volume / tone control section 4736, and when the pressure is equal to or less than a predetermined value, the filter is turned off. May be turned on. In addition, instead of cutting the low frequency range or the like by using a filter, the amplification factor in the low frequency range may be reduced (or the amplification factor in the high frequency range may be increased). Such a filter function or a frequency range-selective amplification function is not merely turned on and off. By adjusting the filter function or the frequency range-selective amplification function in a stepwise manner, the environmental noise can be gradually or continuously changed according to the pressing. It is also possible to change the reduction capacity.

  FIG. 77 is a cross-sectional view of Example 52 according to the embodiment of the present invention, and is configured as a mobile phone 4801. In FIG. 77, a cross section of the mobile phone 4801 is shown to explain the support structure and arrangement of the piezoelectric bimorph elements 2525a and 2525b as the cartilage conduction vibration sources, and the inside of the cross section relating to the control is not an actual arrangement. This is illustrated in a block diagram. Further, this block diagram is based on the block diagram of the first embodiment shown in FIG. 3, and the common parts are basically omitted from illustration except for those necessary for understanding the mutual relationship. Also in the case shown, the same parts are denoted by the same reference numerals, and description thereof will be omitted unless necessary.

  77 can be switched between “case of cartilage conduction plus air conduction” and “case of only cartilage conduction” in the same manner as the embodiment 49 of FIG. 74 and the embodiment 50 of FIG. It is configured as a simple embodiment. In the 52nd embodiment of FIG. 77, similarly to the 46th embodiment of FIG. 69, the elastic portions 4863a serving as protectors are provided at four corners which are easily exposed to collision when the mobile phone 4801 is dropped by mistake. , 4863b, 4863c and 4863d. However, the support of the piezoelectric bimorph elements 2525a and 2525b by the elastic portions 4863a and 4863b is not the both-end support structure, but one side is supported by the cantilever structure in the same manner as in the embodiment 42 of FIG. 65 and the embodiment 43 of FIG. It was done. As described above, since the embodiment 52 of FIG. 77 relates to the features of the various embodiments described so far, the description of each feature can be understood by the description of the corresponding embodiment. Avoid duplicate explanations unless otherwise noted.

  First, the structure and arrangement of the embodiment 52 in FIG. 77 will be described. As described above, the elastic portions 4863a, 4863b, 4863c and 4863d serving as protectors are provided at the four corners of the mobile phone 4801. . The outer surfaces of the corners of these elastic members are chamfered in a smooth convex shape so as not to cause substantial pain when applied to the ear cartilage. As will be described in detail later, the shape of the corner portion is suitably fitted to the cartilage around the external auditory canal to enable comfortable listening by cartilage conduction.

  In the embodiment 52 of FIG. 77, the piezoelectric bimorph element 2525b for the right ear and the piezoelectric bimorph element 2525a for the left ear are employed as described above, and individually controlled in the same manner as the embodiment 1 shown in FIGS. It is possible. Although the piezoelectric bimorph elements 2525b and 2525a have appropriate lengths to obtain suitable frequency output characteristics, in order to arrange these two compactly in the mobile phone 4801, as shown in FIG. 77, a piezoelectric bimorph for the right ear is used. With respect to the element 2525b, one end of the element 2525b having no terminal is supported by the elastic body 4863b. On the other hand, with respect to the left ear piezoelectric bimorph element 2525a, one end of the piezoelectric bimorph element 2525a having no terminal is supported by the elastic portion 4863a. (Note that the vertical and horizontal arrangement of the right and left ear piezoelectric bimorph elements may be reversed.) Although terminals are provided at the other ends of the piezoelectric bimorph elements 2525b and 2525a, flexible leads are provided. Since it is connected to the control unit 39 by a line, it is a free end on the support structure. In this way, the free ends of the piezoelectric bimorph elements 2525b and 2525a vibrate, and the reaction appears on the elastic portions 4863b and 4863a, and the cartilage conduction can be obtained by contacting the otic cartilage with these. Note that the main vibration directions of the piezoelectric bimorph elements 2525b and 2525a are perpendicular to the plane of FIG.

  Next, control of the piezoelectric bimorph elements 2525b and 2525a will be described. The right ear piezoelectric bimorph element 2525b supported by the elastic portion 4863b is driven by the right ear amplifier 4824 via the switch 4824a. On the other hand, the left ear piezoelectric bimorph element 2525a supported by the elastic portion 4863a is driven by the left ear amplifier 4826 via the switch 4826a. The audio signal from the phase adjustment mixer unit 36 is input to the right ear amplifier 4824 and the left ear amplifier 4826, respectively. The audio signal to the left ear amplifier 4826 is inverted by the waveform inversion unit 4836b via the switch 4836a. Entered after being done. As a result, in the state shown in FIG. 77, vibrations having phases inverted to each other are transmitted from the elastic body portion 4863a and the elastic body portion 4863b to the housing of the mobile phone 4801 and cancel each other, and the entire surface of the housing surface of the mobile phone 4801 is cancelled. The generation of air-conducted sound from the air is substantially eliminated.

  On the other hand, for example, when the cartilage of the right ear is brought into contact with the elastic body portion 4863b, cartilage conduction occurs directly from the elastic body portion 4863b to the ear cartilage. After transmitting to the housing, it reaches the elastic portion 4863b and transmits to the ear cartilage as cartilage conduction. Therefore, a difference is generated in the intensity of the vibration whose phase is inverted, and this difference is transmitted to the ear cartilage without being canceled as the cartilage conduction from the elastic portion 4863b. The same applies to the case where the left ear cartilage is brought into contact with the elastic body portion 4863a. Therefore, the state shown in FIG. 77 in the embodiment 52 is a state corresponding to “only cartilage conduction” in the embodiment 49 in FIG. 74 and the embodiment 50 in FIG. The air conduction elimination gain adjustment section 4836c is provided for the left ear so that the generation of air conduction sound is minimized by canceling the vibration from the elastic body section 4863a and the elastic body section 4863b to the housing of the mobile phone 4801 as described above. The gain of the amplifier 4826 is adjusted. Note that the switch 4836a, the waveform inverting section 4836b, and the air conduction vanishing gain adjusting section 4836c as described above may be provided on the right ear amplifier 4824 side instead of the left ear amplifier 4826 side. Alternatively, only the air conduction vanishing gain adjustment section 4836c may be provided on the right ear amplifier 4824 side.

  In the embodiment 52 of FIG. 77, an environmental noise microphone 4638 for determining whether or not the environment is quiet is further provided. When the noise detected by the environmental noise microphone 4638 is equal to or more than a predetermined value, the switch 4836a is switched to the lower signal path in the figure in accordance with a command from the control unit 39. Thus, the audio signal from the phase adjustment mixer section 36 is transmitted to the left ear amplifier 4826 without waveform inversion. At this time, the vibration transmitted from the elastic body portion 4863a and the elastic body portion 4863b to the housing of the mobile phone 4801 is not canceled out, and conversely doubles to generate air conduction sound from the entire housing surface of the mobile phone 4801. . This state corresponds to the “case of cartilage conduction plus air conduction” in the embodiment 49 of FIG. 74 and the embodiment 50 of FIG. 75. In addition, since this state doubles the air-conducted sound from the entire surface of the housing, it is suitable when the mobile phone 4801 is separated from the ear and the sound is heard, such as when performing a videophone call. In the case of the videophone mode, the switch 4836a is switched to the lower signal path in accordance with a command from the control unit 39 regardless of the detection of the environmental noise microphone 4638.

  On the other hand, in a quiet state in which the control unit 39 determines that the noise detected by the environmental noise microphone 4638 is equal to or lower than a predetermined value, the switch 4836a is switched to the state shown in FIG. Thus, as described above, the vibrations transmitted from the elastic body portion 4863a and the elastic body portion 4863b to the housing of the mobile phone 4801 cancel each other, and the generation of air-conducted sound substantially disappears. In the case of.

  77, the acceleration sensor 49 detects which of the elastic members 4863a and the elastic members 4863b is in contact with the ear, and controls the controller 39. Can control the switch 4824a and the switch 4826a. Then, the operation unit 9 sets the switch 4824 a and the switch 4826 a to be always on regardless of the detection state of the acceleration sensor 49, and sets both the switch 4824 a and the switch 4826 a based on the detection state of the acceleration sensor 49. A single-sided ON mode, which turns on and turns off the other side, can be switched. In the one-side ON mode, for example, if the right ear is put on the elastic body portion 4863b, the switch 4824a is turned on and the switch 4826a is turned off. The opposite is true if the left ear is placed on the elastic portion 4863a.

  The one-side ON mode is further combined with the function of the environmental noise microphone 4638. When the noise detected by the environmental noise microphone 4638 is equal to or more than a predetermined value, one of the switch 4824a and the switch 4826a is switched based on the detection state of the acceleration sensor 49. Turn on and turn off the other. On the other hand, in a quiet state in which the control unit 39 determines that the noise detected by the environmental noise microphone 4638 is equal to or less than a predetermined value, both the switch 4824a and the switch 4826a are turned on regardless of the detection state of the acceleration sensor 49 by a command from the control unit 39. At the same time, the switch 4836a is switched to the state shown in the drawing, so that vibrations transmitted from the elastic body portion 4863a and the elastic body portion 4863b to the housing of the mobile phone 4801 cancel each other.

  FIG. 78 is a perspective view and a cross-sectional view relating to the example 52 of FIG. 77. FIG. 78 (A) is a perspective view of the mobile phone 4801 of Embodiment 52 as viewed from the front. The outer surfaces of the elastic portions 4863a, 4863b, 4863c and 4863d provided at the four corners of the mobile phone 4801 as protectors are shown. Fig. 6 shows a state in which chamfering is performed so as to form a smooth convex surface. As described above, the outer shape of the corner of the mobile phone 4801 prevents substantial pain when the elastic member 4863a or 4863b is applied to the ear cartilage, and the corner of the mobile phone 4801 Fits appropriately to the cartilage around the entrance of the external auditory canal inside the pinna, and enables listening by comfortable cartilage conduction. Also, the chamfered corners create an ear plug bone conduction effect by closing the ear canal entrance, and the sound signal from the mobile phone 4801 is enhanced in the ear canal, and the external ear canal is closed by closing the ear canal entrance. This makes it easier to hear the audio signal under the noise.

  FIG. 78B is a cross-sectional view of the mobile phone 4801 which is cut along a plane perpendicular to the front and side surfaces along a cutting plane B1-B1 in FIG. 78A, and FIG. FIG. 79 is a cross-sectional view of the mobile phone 4801 cut along a plane perpendicular to the front surface and the top surface along a B2-B2 cut surface illustrated in FIG. 78 (B). From FIG. 78 (B) or FIG. 78 (C), it can be seen that the outer surfaces of the corners of the elastic portions 4863a, 4863b, 4863c and 4863d are chamfered so as to have a smooth convex shape. The main vibration direction of the piezoelectric bimorph element 2525b is a direction perpendicular to the display surface of the GUI display portion 3405 as indicated by an arrow 25g in FIG. 78 (B) or 78 (C). Further, as indicated by an arrow 25m in FIG. 78B, the main vibration direction of the piezoelectric bimorph element 2525a is a direction perpendicular to the display surface of the GUI display portion 3405.

  In the embodiment 52, the switches 4824a, 4826a, and 4836a in FIG. 77 are illustrated by mechanical switch symbols. However, it is preferable that the switches are actually formed by electronic switches. Also, in the example 52, these switches are automatically switched based on the detection results of the acceleration sensor 49 and the environmental noise microphone 4638, except for the case of always switching between the both-side ON mode and the one-side ON mode. May be manually switched by the operation unit 9 arbitrarily. Also, these switches can be omitted as appropriate. For example, if the embodiment 52 is simplified to always have the connection state shown in FIG. 77, the generation of air conduction sound from the entire housing surface is substantially eliminated, and the elastic body portion 4863a or the elastic body When the part 4863b is brought into contact with the ear cartilage, a mobile phone in which cartilage conduction occurs can be obtained.

  The various features of each embodiment described above are not limited to the individual embodiments, but can be replaced or combined with the features of other embodiments as appropriate. For example, in the embodiment 52 shown in FIGS. 77 and 78, the piezoelectric bimorph element is used as the cartilage conduction vibration source. However, the cartilage conduction vibration source is used in the embodiment 48 shown in FIGS. 72 and 73 or the embodiment 50 shown in FIG. Alternatively, another vibrator such as an electromagnetic vibrator as in the embodiment 51 of FIG. 76 may be used.

  FIG. 79 is a graph showing an example of actual measurement data of a mobile phone configured based on the embodiment 46 of FIG. FIG. 79 is a graph showing the mobile phone 4201 (the configuration in which the vibration from the vibration source inside the outer wall is transmitted to the outer wall surface) of the forty-sixth embodiment in FIG. 2A or FIG. According to (B), when the outer wall surface of the corner of the mobile phone 4201 is brought into contact with at least a part of the ear cartilage around the ear canal entrance without contacting the ear canal, the outer ear canal is located 1 cm deep from the ear canal entrance. The sound pressure is shown in relation to the frequency. The vertical axis of the graph is the sound pressure (dBSPL), and the horizontal axis is the logarithmic scale frequency (Hz). In the graph, the contact pressure between the outer wall surface of the corner of the mobile phone 4201 and the cartilage around the entrance of the ear canal is slightly touched by a solid line with the sound pressure in a non-contact state (contact pressure of 10 g). Is a broken line, the sound pressure in a state where the mobile phone 4201 is normally used (contact pressure of 250 gram) is indicated by a dashed line, and the sound in a state where the ear canal is closed due to an increase in the contact pressure (contact pressure of 500 gram). The pressure is indicated by a two-dot chain line. As shown, the sound pressure is increased from the non-contact state by contact at a contact pressure of 10 g, further increased by a contact pressure increase to 250 g, and the contact pressure is further increased from this state to 500 g. This further increases the sound pressure.

  As is evident from the graph of FIG. 79, the outer wall surface of the mobile phone 4201 having an outer wall surface and a vibration source disposed inside the outer wall surface and transmitting vibration of the vibration source to the outer wall surface is provided as an earring. When contact is made with at least a portion of the ear cartilage around the entrance of the ear canal without contact with the external auditory canal, the sound pressure in the external auditory canal 1 cm deep from the entrance of the ear canal is larger than the non-contact state, and the main sound frequency band (500 Hz to 500 Hz) 2300 Hz) at least increases by 10 dB. (Refer to the comparison between the non-contact state shown by the solid line and the state where the mobile phone 4201 is normally used, shown by the dashed line.)

  As is clear from the graph of FIG. 79, when the outer wall surface of the mobile phone 4201 is brought into contact with at least a part of the otic cartilage around the entrance of the ear canal without contacting the ear cuff, a change in the contact pressure causes the entrance of the ear canal to enter. It can be seen that the sound pressure in the ear canal at a depth of 1 cm changes by at least 5 dB in the main frequency band (500 Hz to 2500 Hz) of the voice. (Refer to a comparison between a slight contact state indicated by a broken line and a contact state in a state where the mobile phone 4201 is normally used, indicated by a dashed line.)

  Furthermore, as is clear from the graph of FIG. 79, the outer ear canal entrance is closed (for example, the tragus) by bringing the outer wall surface of the mobile phone 4201 into contact with at least a part of the ear cartilage around the ear canal entrance without contacting the ear canal. When the tragus folds back and closes the ear canal by strongly pressing the outer wall surface of the mobile phone 4201 to the outside), the sound pressure in the ear canal 1 cm deep from the ear canal entrance is larger than that in the non-contact state. It can be seen that there is an increase of at least 20 dB in a wide frequency band (300 Hz to 1800 Hz). (Compare the non-contact state shown by the solid line with the closed ear canal shown by the two-dot chain line.)

  Note that the measurements in FIG. 79 are all in a state where the output of the vibration source is not changed. Further, as a state in which the outer wall surface is brought into contact with at least a part of the ear cartilage around the entrance of the ear canal without contacting the ear cuff, the measurement in FIG. 79 is performed in a state where the outer wall surface is brought into contact with the outside of the tragus. Further, the measurement in a state where the ear canal is closed in FIG. 79 is performed by creating a state in which the ear tragus is folded by pressing the tragus more strongly from the outside as described above, and the ear canal is closed. .

  As described above, the measurement in FIG. 79 is performed with the surface of the outer wall corner of the mobile phone 4201 of the embodiment 46 shown in FIG. 69 in contact with the outer side of the tragus. The elastic portions 4263a and 4263b serving as protectors are made of a material different from other portions of the outer wall. The vibration source is held on the inner surface side of the outer wall corner formed by the elastic members 4263a and 4263b. Note that the outer wall corner of the mobile phone 4201 is a portion that is exposed to collision from the outside, and even when the outer wall corner is configured by the elastic members 4263a and 4263b, there is no relative displacement with other portions of the outer wall. It is firmly joined.

  Note that the measurement graph in FIG. 79 is merely an example, and there is an individual difference when viewed in detail. The measurement graph of FIG. 79 is measured in a state where the outer wall surface is brought into contact with a small area only on the outer side of the tragus for simplification and standardization of the phenomenon. However, the increase in sound pressure due to the contact also depends on the area of contact with the cartilage. The contact will further increase the sound pressure. In consideration of the above, the numerical values shown in the measurement graph of FIG. 79 have generality indicating the configuration of the mobile phone 4201, and are reproducible by an unspecified number of subjects. Furthermore, the measurement graph of FIG. 79 is based on the fact that the tragus is folded back by pressing the tragus from the outside when closing the entrance of the ear canal, so that the tragus is folded back. A similar result can be obtained if it is pushed into the inlet and closed. Note that the measurement in FIG. 79 is a measurement using a device that holds the vibration source inside the outer wall corner as in the case of the mobile phone 4201 in the embodiment 46 in FIG. 69, but is not limited thereto. Is also reproducible. For example, as shown in FIG. 72, there is reproducibility even in a configuration (for example, a configuration in which the vibration source is held inside the elastic portions 4363a and 4363b serving as protectors).

  In other words, the measurement graph of FIG. 79 has a vibration source disposed inside the outer wall surface, and the outer wall surface of the mobile phone configured to transmit the vibration of the vibration source to the outer wall surface without contacting the earring. When brought into contact with at least a part of the ear cartilage around the entrance of the ear canal, the sound pressure in the external auditory canal at a depth of 1 cm from the entrance of the ear canal is at least one of the main frequency bands (500 Hz to 2300 Hz) of the sound as compared with the non-contact state. This is sufficient to understand the characteristic of the mobile phone itself of the present invention that the increase is at least 10 dB at a part (for example, 1000 Hz).

  Further, the graph of FIG. 79 shows that when the outer wall surface of the mobile phone is brought into contact with at least a part of the ear cartilage around the ear canal entrance without contacting the ear cuff, the external ear canal 1 cm deep from the ear canal entrance due to an increase in contact pressure. It is sufficient to understand that the characteristic of the mobile phone itself of the present invention is that the sound pressure within the mobile phone increases by at least 5 dB in at least a part (for example, 1000 Hz) of the main frequency band of voice (500 Hz to 2500 Hz).

  Furthermore, the graph of FIG. 79 shows that when the outer ear canal entrance is closed by bringing the outer wall surface of the mobile phone into contact with at least a part of the ear cartilage around the ear canal entrance without contacting the ear canal, compared to a non-contact state, It is sufficient to understand the characteristic of the mobile phone itself of the present invention that the sound pressure in the ear canal 1 cm deep from the ear canal entrance increases by at least 20 dB in at least a part (for example, 1000 Hz) of the main frequency band of voice (300 Hz to 1800 Hz). It is something.

  The mobile phone of the present invention confirmed by the measurement in the graph of FIG. 79 has the following significance. That is, the present invention has a vibration source disposed inside the outer wall surface and a volume adjusting means, transmits the vibration of the vibration source to the outer wall surface, and connects the outer wall surface to the ear canal entrance without contacting the ear cuff. The present invention provides a mobile phone that listens to sound by making contact with at least a part of otic cartilage around a part, the characteristics of which are defined as follows. That is, in a quiet room with a noise level (A-weighted sound pressure level) of 45 dB or less, the outer wall surface is installed in a non-contact manner in close proximity to the ear canal entrance, and a pure sound of 1000 Hz is generated from the vibration source while minimizing the volume. A 1000 Hz narrow band noise (1/3 octave band noise) at a limit level at which a pure tone of 1000 Hz is masked and cannot be heard from a loudspeaker at a position 1 m away from the entrance of the ear canal is generated. This is determined by sequentially increasing the 1000 Hz narrow-band noise and obtaining a magnitude at which the pure tone of 1000 Hz is masked and cannot be heard. Then, the 1000 Hz narrow-band noise is increased by 10 dB from the limit level. According to the mobile phone of the present invention, the volume of the outer wall is brought into contact with at least a part of the otic cartilage around the entrance of the ear canal without contacting the ear canal. A pure tone of 1000 Hz can be heard without changing the adjustment of the adjusting means.

  Further, when the 1000-Hz narrow-band noise is raised by 20 dB from the limit level obtained as described above, according to the mobile phone of the present invention, the outer wall surface is brought into contact with at least one of the ear cartilage around the entrance of the ear canal without contacting the ear cuff. By contacting the external ear canal, the pure ear of 1000 Hz can be heard without changing the volume adjusting means.

  FIG. 80 is a side view and a sectional view of the ear, showing the relationship between the details of the structure of the ear and the mobile phone of the present invention. FIG. 80A is a side view of the left ear 30, and a position 4201a indicated by a dashed line shows a state where the corner of the mobile phone 4201 is in contact with the outside of the tragus. The position 4201a corresponds to the state where the measurement of FIG. 79 has been performed. On the other hand, a position 4201b indicated by a two-dot chain line is an illustration of a state where the corner of the mobile phone 4201 is in contact with a wider cartilage around the ear canal entrance. At the position 4201b, a greater increase in sound pressure than shown in FIG. 79 can be realized by contact with the ear cartilage.

  FIG. 80 (B) is a cross-sectional view of the right ear 28, and illustrates how vibration of a vibration source generated from a corner of the mobile phone 4201 is transmitted to the eardrum 28a. The mobile phone 4201 in the state shown in FIG. 80B is brought into contact with a wider cartilage portion around the entrance of the ear canal according to the position 4201b in FIG. 80A. (Although it is not clear only from the cross-sectional view, in this state, it is assumed that the ear canal entrance is not closed.) The vibration 28b generated from the corner of the mobile phone 4201 causes the cartilage around the ear canal entrance from the contact part. Then, an air conduction sound is generated from the surface of the cartilage external auditory canal to the external auditory canal 28c. Then, the air-conducted sound travels in the external auditory meatus 28c and reaches the eardrum 28a. Air conduction 28d is also generated directly from the corner of the mobile phone 4201, and also travels through the external auditory meatus 28c to reach the eardrum 28a. It is only the direct air conduction 28d that the mobile phone 4201 reaches the eardrum 28a without contacting the cartilage.

  Here, the frequency characteristics of the piezoelectric bimorph element 2525 used in the embodiment 46 of FIG. 69 and the like will be supplemented. The frequency characteristics of direct air conduction of the piezoelectric bimorph element 2525 used in the embodiment of the present invention are not flat, and the air conduction on the low frequency side is relatively flat at about 1 kHz. Smaller ones. The frequency characteristic of such a piezoelectric bimorph element 2525 regarding the generation of direct air conduction matches well with the frequency characteristic of the case where air is transmitted from the piezoelectric bimorph element 2525 directly into the external auditory canal via the cartilage. That is, the sound pressure in the external auditory canal according to the frequency characteristics of air conduction sound via cartilage conduction is higher at the low frequency side than at the high frequency side at about 1 kHz, so that direct air conduction When the piezoelectric bimorph element 2525 having the generated frequency characteristic is used, the two are complementary to each other, and as a result, the frequency characteristic of the sound reaching the eardrum approaches flat. As described above, in the present invention, as the cartilage conduction vibration source, a source exhibiting an air-conducted sound generation frequency characteristic that is opposite to the frequency characteristic in cartilage conduction is employed.

  This will be specifically described with reference to FIG. 79 which is the measured data of the embodiment 46 in FIG. 69 as an example. The graph of FIG. 79 is obtained by applying a sine wave at the same voltage while changing the frequency to the piezoelectric bimorph element 2525 having the structure shown in FIG. 69 and observing the sound pressure level. The non-contact sound pressure shown substantially indicates the frequency characteristic of air conduction sound generated from the piezoelectric bimorph element 2525. That is, as is clear from the solid line in the graph of FIG. 79, the frequency characteristic of air conduction sound generation by the piezoelectric bimorph element 2525 is not flat, and for example, when attention is paid to a band of about 100 Hz to 4 kHz, mainly in a low frequency region. (Eg, 200 Hz to 1.5 kHz), the sound pressure is relatively low, and mainly in a high frequency region (eg, 1.5 kHz to 4 kHz). (Note that the sound pressure measured in FIG. 79 is the sound pressure in the external auditory canal 1 cm deep from the entrance of the external auditory canal. Even if it is interpreted by subtracting this amount, it is clear that the sound pressure is relatively higher in the high frequency region than in the low frequency region.) Thus, the implementation of FIG. It can be seen that the frequency characteristics of the piezoelectric bimorph element 2525 used in Example 46 and the like are not flat, and the generation of air conduction sound on the low frequency side is smaller than that on the high frequency side at about 1 kHz.

  Next, in the graph of 250 g in the normal contact state shown by the one-dot chain line in FIG. 79, a remarkable increase in sound pressure is observed from around several hundred Hz in the low frequency region side below 1 kHz as compared with the non-contact state. It continues to at least about 2.5 kHz. Therefore, for the piezoelectric bimorph element 2525, which is the same vibration source, the frequency characteristics of sound measured in the external auditory canal show a clear difference between air conduction via cartilage conduction and direct air conduction. (That is, air conduction via cartilage conduction has a greater increase in sound pressure, especially at several hundred Hz to 2.5 kHz, than direct air conduction.) As a result, FIG. 79 is a graph of 250 g in a normal contact state shown by a dashed line. Thus, in the case of air conduction via cartilage conduction, the sound pressure in the external auditory canal is such that the frequency characteristics of the sound reaching the eardrum are relatively flatter than in the case of direct air conduction indicated by the solid line.

  Furthermore, at 500 g in the ear canal closed state shown by the two-dot chain line in FIG. 79, a remarkable increase in sound pressure is further observed at several hundred Hz to 1 kHz due to the ear plug bone conduction effect. The frequency characteristic is clearly different from the normal contact state of 250 g and the non-contact state. In addition, since the naked ear gain is lost at 500 g in the ear canal closed state indicated by the two-dot chain line, the effect of the peak of the sound pressure from 2.5 kHz to 3.5 kHz observed in the ear canal open state disappeared. It is considered something.

  FIG. 81 is a block diagram of Example 53 according to the embodiment of the present invention. The embodiment 53 is configured as 3D television viewing glasses 2381 capable of listening to stereo audio information in the same manner as the embodiment 25 of FIG. 38, and forms a 3D television viewing system together with the 3D television 2301. Then, in the same manner as in the twenty-fifth embodiment, the vibration of the cartilage conduction vibrating portion 2324 for the right ear disposed on the right crane portion 2382 is transmitted to the outside of the cartilage at the base of the right ear via the contact portion 2363, and The vibration of the cartilage conduction vibration part for left ear 2326 arranged on the crane part 2384 is transmitted to the outside of the cartilage at the base of the left ear via the contact part 2364. Since the embodiment 53 has many parts in common with the embodiment 25, the common parts are assigned the same reference numerals and further explanation is omitted unless necessary. Although not shown in FIG. 81, the internal configuration of the 3D television 2301 is the same as that shown in FIG.

  The embodiment 53 of FIG. 81 has the same structure as the embodiment 46 of FIG. 69 as the cartilage conduction vibrating portion 2324 for the right ear and the cartilage conduction vibrating portion 2326 for the left ear in the same manner as the embodiment 25 of FIG. Of the piezoelectric bimorph element 2525 is used. In other words, the cartilage conduction vibrating part for right ear 2324 and the cartilage conduction vibrating part for left ear 2326 exhibit a direct air conduction generation frequency characteristic that is opposite to the frequency characteristic in cartilage conduction, and has a low frequency of about 1 kHz. The air-flow generation on the side is relatively smaller than that on the high-frequency side. Specifically, the cartilage conduction vibration part for right ear 2324 and the cartilage conduction vibration part for left ear 2326 employed in the embodiment 53 of FIG. 81 have an average air conduction output of 500 Hz to 1 kHz and a frequency of 1 kHz to 2.5 kHz. The difference in the average air conduction output is 5 dB or more different from that of an average ordinary speaker designed for air conduction, and exhibits an undesirable frequency characteristic as a normal speaker.

  The embodiment 53 of FIG. 81 is different from the embodiment 25 of FIG. 38 in that, when driving the cartilage conduction vibration unit 2324 for the right ear and the cartilage conduction vibration unit 2326 for the left ear as described above, the frequency characteristic correcting unit 4936 is used. The point is to do it. The frequency characteristic correction unit 4936 is provided with a cartilage conduction equalizer 4938 that corrects the frequency characteristic of the sound pressure that becomes the air conduction sound in the external auditory canal so that the frequency characteristic is characteristic of cartilage conduction. The cartilage conduction equalizer 4938 basically corrects the frequency characteristics of the drive signals to the cartilage conduction vibration unit for right ear 2324 and the cartilage conduction vibration unit for left ear 2326 equally, but the cartilage conduction vibration unit for right ear 2324 and the left ear It can also be used to individually correct the variation of the cartilage conduction vibration part 2326 for use. The frequency characteristic correction unit 4936 is provided with a cartilage conduction low-pass filter 4940 (for example, cuts at 10 kHz or more) for cutting high frequencies. This is for preventing the unpleasant air conduction and divergence to the outside since the cartilage conduction vibration part for right ear 2324 and the cartilage conduction vibration part for left ear 2326 in Example 53 do not cover the ears. The characteristics of the low-pass filter are determined in consideration of not cutting a frequency band (for example, 10 kHz or less) that is advantageous for cartilage conduction. It is to be noted that it is disadvantageous in terms of sound quality to cut an audible range (for example, 10 kHz to 20 kHz) and higher frequency ranges as an audio device. Therefore, in an environment where it is not necessary to consider unpleasant air conduction and divergence to the outside. The function of the cartilage conduction low-pass filter 4940 can be manually turned off.

  FIG. 82 is a block diagram of Example 54 according to the embodiment of the present invention. Embodiment 54 is configured as a mobile phone 5001 in the same manner as Embodiment 4 in FIG. The 54th embodiment has many parts in common with the 4th embodiment. Therefore, common parts are assigned the same reference numerals and explanations thereof will be omitted unless necessary. In the embodiment 54 of FIG. 82, a piezoelectric bimorph element 2525 having the same structure as that of the embodiment 46 of FIG. 69 is used as the vibration source of the cartilage conduction vibration unit 228 in the same manner as the embodiment 53 of FIG. In other words, the vibration source of the cartilage conduction vibration unit 228 shows a direct air conduction generation frequency characteristic that is opposite to the frequency characteristic in cartilage conduction, and the air conduction generation on the low frequency side relatively occurs at about 1 kHz. The one smaller than that on the high frequency side is adopted. Specifically, the piezoelectric bimorph element employed in the embodiment 54 in FIG. 82 has a difference between the average air conduction output from 500 Hz to 1 kHz and the average air conduction output from 1 kHz to 2.5 kHz in the same manner as in the embodiment 52. However, it differs from an average mobile phone speaker designed for air conduction by 5 dB or more, and exhibits a frequency characteristic that is not desirable as a normal speaker.

  The embodiment 54 of FIG. 82 differs from the embodiment 4 of FIG. 8 in that a cartilage conduction low-pass filter 5040 for cutting off high frequency when driving the piezoelectric bimorph element of the vibration source of the cartilage conduction vibration unit 228 as described above. (For example, 2.5 kHz or more is cut) and a cartilage conduction equalizer 5038. In the same manner as in Embodiment 53, the cartilage conduction equalizer 5038 corrects the frequency characteristics of the sound pressure that becomes the air-conducted sound in the external auditory canal in consideration of the frequency characteristics peculiar to cartilage conduction. Since the sound signal via the cartilage conduction equalizer 5038 has been corrected for frequency characteristics in consideration of the frequency characteristics specific to cartilage conduction, the sound signal to the videophone speaker 51 on the premise of direct air conduction is provided. And have different frequency characteristics.

  The cartilage conduction equalizer 5038 of the fifty-fourth embodiment further changes the correction frequency characteristic from the frequency characteristic of the normal contact state when the state where the ear hole is closed and the ear plug bone conduction effect occurs is detected by the pressing sensor 242. Automatic switching for the frequency characteristics of the ear plug bone conduction effect occurrence state. The difference in the frequency characteristic correction switched at this time corresponds to, for example, the difference between the one-dot chain line (250 g of normal contact) and the two-dot line (500 g of ear canal closure) in FIG. More specifically, when the ear plug bone conduction effect occurs, the bass range is not over-emphasized, and the frequency characteristics are corrected to compensate for the disappearance of the naked ear gain due to the closure of the ear canal, Reduces the change in sound quality depending on the presence of the ear plug bone conduction effect.

  The cartilage conduction low-pass filter 5040 in the fifty-fourth embodiment is for protecting the privacy by preventing the sound in the band audible to the ear from leaking to the outside, and is particularly useful in quiet periods. Such characteristics of the cartilage conduction low-pass filter 5040 are determined in consideration of not cutting a frequency band (for example, 2.5 kHz or less) in which a sound pressure enhancing effect due to contact with the otic cartilage is remarkable. The voice of mobile phones is originally cut off at 3 kHz or more, but it utilizes the band of several hundred Hz to 2.5 kHz where the sound pressure enhancement effect by cartilage conduction is high without naked ear gain, and the effect unique to cartilage conduction By cutting out the frequency of 2.5 kHz or more outside the frequency band where the noise appears, privacy protection as described above can be rationally achieved. As described above, since the effect of the cartilage conduction low-pass filter 5040 is particularly important during silence, it can be turned on / off manually, or only by providing an environmental noise microphone 4638 in the embodiment 50 of FIG. It is desirable to configure to turn on automatically. In the configuration in which the cartilage conduction equalizer 5038 is manually turned on and off, when the cartilage conduction equalizer 5038 is used for the frequency characteristic of the state in which the ear plug bone conduction effect is generated, it is assumed that a loud noise is generated. It is configured to forcibly turn off if it is turned on manually.

  The implementation of various features of the present invention shown in each of the above embodiments is not limited to the above embodiments. For example, in Examples 53 and 54 described above, in order to make the frequency characteristics of the final air conduction sound that has passed through cartilage conduction nearly flat, the air conduction sound having a frequency characteristic different from the normal air conduction generation frequency characteristic Is used in combination with a cartilage conduction vibration source and a cartilage conduction equalizer, one of which can be omitted. For example, when a cartilage conduction vibration source that matches well with the cartilage conduction frequency characteristic is used, the cartilage conduction equalizer can be omitted. On the contrary, as a cartilage conduction vibration source, a frequency characteristic that produces air conduction sound similar to a normal air conduction speaker is adopted, and the final air conduction frequency characteristic after cartilage conduction is obtained. It is also possible to adopt a configuration in which the function for making the shape nearly flat is concentrated on the cartilage conduction equalizer.

  FIG. 83 is a perspective view and a cross-sectional view of Example 55 according to the embodiment of the present invention, and are configured as a mobile phone 5101. Example 55 is the same as Example 46 shown in FIG. 69 except for the holding structure of the cartilage conduction vibration source 2525 constituted by the piezoelectric bimorph element and the addition of a T coil described later. The description is omitted unless necessary.

  First, the holding structure of the cartilage conduction vibration source 2525 in the working example 55 will be described. As is clear from the perspective view of FIG. 83A, cartilage conduction parts 5124 and 5126 made of a hard material are provided at the left and right corners of the mobile phone 5101. As the cartilage conduction parts 5124 and 5126, for example, ABS resin, fiber reinforced plastic, fine ceramics having high toughness and the like are preferable. Elastic bodies 5165b and 5165a such as vinyl and urethane are interposed between the cartilage conduction parts 5124 and 5126 and the housing of the mobile phone 5101, and function as a vibration isolation material and a cushioning material.

  Further, as is clear from FIGS. 83 (B) and (C), the cartilage conduction portions 5124 and 5126 have a structure for holding the piezoelectric bimorph element 2525 inside thereof. The piezoelectric bimorph element 2525 has a holding structure that does not directly contact the housing of the mobile phone 5101 due to the interposition of the elastic bodies 5165b and 5165a. Thus, the vibration energy of the piezoelectric bimorph element 2525 is concentrated on the cartilage conduction parts 5124 and 5126, and is not dispersed in the housing of the mobile phone 5101.

  As shown by the broken line in FIG. 83A, a T coil 5121 is arranged inside the upper center of the mobile phone 5101 in the fifty-fifth embodiment. The T coil 5121 is for transmitting sound information by electromagnetic induction to a hearing aid provided with a corresponding T coil. The relationship between the transmission of sound information by the T coil and the transmission of sound information by cartilage conduction will be described later.

  FIG. 84 is a block diagram of the embodiment 55 shown in FIG. 83. The same parts as those in FIG. Further, the configuration of the block diagram in FIG. 84 has many points in common with the block diagram of the embodiment 54 in FIG. 82, and these can be referred to. .

  As described above, the embodiment 55 has the T coil 5121, and when the user of the mobile phone 5101 wears a hearing aid equipped with the T coil, the sound information is transmitted to the hearing aid by electromagnetic induction by the T coil 5121. can do. Some hearing aids having a T-coil are configured so that the T-coil function can be turned on and off, and the microphone of the hearing aid can be turned on and off when the T-coil is turned on. In response to this, in the mobile phone 5101 of the fifty-fifth embodiment, the switch 5121a is turned on / off in response to the operation of the operation unit 9, and it can be selected whether or not the T coil 5121 functions. When ON of the T coil 5121 is selected, a switch 5121b is provided for forcibly turning off the cartilage conduction vibration unit 228 including the piezoelectric bimorph element 2525 in conjunction therewith.

  As described above, even when the ear is plugged, the cartilage conduction generates an air-conducted sound inside the external auditory canal with the effect of the ear plug bone conduction. As a result, even when the ear canal is closed by the hearing aid, sound can be heard by cartilage conduction using the piezoelectric bimorph element 2525 as a vibration source without turning on the T coil 5121. The cartilage conduction is basically caused by bringing the cartilage conduction part 5124 or 5126 into contact with the ear cartilage. It is also possible by generating an air conduction sound in the ear canal. Further, depending on how the cartilage conduction part 5124 or 5126 is applied, contact with both the ear cartilage and the hearing aid occurs, and air conduction sound can be generated in the external auditory canal in the above coexisting state. As described above, the mobile phone 5101 of the present invention can be used by a hearing aid user even when the T coil 5121 is turned off.

  The switch 5121b prevents the above-described cartilage conduction from occurring at the same time when the T coil 5121 is caused to function by turning on the switch 5121a, thereby preventing a sense of incompatibility as compared with listening to sound using a normal T coil. This is for preventing unnecessary power consumption due to unnecessary cartilage conduction during the operation of the T coil 5121. In order to prevent the cartilage conduction interlocking when the T coil 5121 is turned on due to an erroneous operation from being confused with the failure, the operation menu of the operation unit 9 displayed on the large screen display unit 205 usually includes the T coil 5121. Is desirably configured so that a menu for turning on is not displayed, and the T coil 5121 is not turned on unless the operation unit 9 is intentionally operated according to a predetermined procedure.

  FIG. 85 is a side view for explaining the distribution of vibration energy in the mobile phone 5101 in the above-described embodiment 55, and has many parts common to FIG. 2; Omitted. As shown in FIG. 83, the cartilage conduction parts 5124 and 5126 directly holding the piezoelectric bimorph element 2525 are held by the housing of the mobile phone 5101 through the interposition of elastic bodies 5165b and 5165a. Thus, the vibration of the piezoelectric bimorph element 2525 is effectively transmitted from the cartilage conduction parts 5124 and 5126 to the ear cartilage, and the vibration of the piezoelectric bimorph element 2525 does not directly contact the housing of the mobile phone 5101. It is hard to get through. That is, the vibration energy of the piezoelectric bimorph element 2525 is concentrated on the cartilage conduction parts 5124 and 5126, and is not dispersed in the housing of the mobile phone 5101.

  More specifically, referring to FIG. 85, since vibration energy is concentrated on the cartilage conduction parts 5124 and 5126, positions (1) and (2) on the surface of the housing of the mobile phone 5101 (circled numerals 1 and 2 in FIG. 2) is the largest, and the vibration acceleration and the amplitude at the intermediate position (3) between the cartilage conduction parts 5124 and 5126 in the housing of the mobile phone 5101 (see the number 3 in the figure) are large. Slightly smaller. Then, in the order of the position (4) and the position (5) (see circled numbers 4 and 5 in the figure), as the distance from the positions (1) and (2) increases, the vibration acceleration and the amplitude on the housing surface of the mobile phone 5101 Is getting smaller. For example, the vibration acceleration and the amplitude on the surface of the housing of the mobile phone 5101 at the position (5) at least 5 cm away from the positions (1) and (2) are respectively １ ／ of the vibration acceleration and the amplitude on the surfaces of the cartilage conduction parts 5124 and 5126. Or less (25% or less). FIG. 85A shows a state in which the mobile phone 5101 having such a vibration distribution is applied to the right ear 28 to obtain a suitable cartilage conduction, and FIG. 85B shows a state in which the mobile phone 5101 is applied to the left ear 30. Similarly, a state where a suitable cartilage conduction is obtained is shown.

  The feature that the vibration energy for cartilage conduction as described above is concentrated on the assumed contact portion with the ear cartilage at the entrance of the ear canal is not limited to the embodiment 55 shown in FIGS. In some of the embodiments. For example, in Examples 1 to 3, 11 to 14, 29 to 33, 35, 36, 42 to 44, 46 to 50, 52, and 55, the vibration acceleration or the vibration amplitude in the assumed contact portion is different from the assumed contact portion. This is an example in which the amplitude is larger than the vibration acceleration or the vibration amplitude in the portion where the vibration is generated. The vibration acceleration or the amplitude of the vibration monotonously decreases as the distance from the assumed contact portion increases, centering on the assumed contact portion, for the reason described later.

  In the present invention, the contact supposed portion for concentrating vibration energy for cartilage conduction does not protrude from the housing, and does not have a shape that hinders use of the mobile phone. Further, the contact supposed portion is located at a position deviated from both the vertical central axis and the horizontal central axis of the housing, and is arranged suitably for contact with the ear cartilage at the entrance of the ear canal. Specifically, the contact supposed portion is located at the corner or the upper side or the side near the corner of the mobile phone. In other words, according to the above arrangement, a preferable configuration is obtained in which the outer wall surface is brought into contact with at least a part of the ear cartilage around the entrance of the ear canal without contacting the ear cuff.

  As described above, according to the present invention, in addition to the embodiment 55 shown in FIGS. 83 to 85, the vibration energy can be concentrated on the assumed contact portion with the ear cartilage at the entrance of the ear canal in other embodiments. When this feature is classified, first, the 29th embodiment, the 30th embodiment, the second modification of the 31st embodiment, the 32nd embodiment, the 33rd embodiment, and the 55th embodiment are arranged between the contact supposed portion and the mobile phone housing. This is an example in which this is realized by isolating by an elastic body. Secondly, in Embodiments 29, 30, 32 and 33, the vibration energy is concentrated on the assumed contact portion by supporting the piezoelectric bimorph element in the mobile phone housing while avoiding the main vibration direction. It is an example. Thirdly, Embodiments 30, 31, and 47 are examples in which the contact area between the assumed contact portion and the mobile phone housing supporting the assumed contact portion is reduced to concentrate the vibration energy on the assumed contact portion. . Fourth, in the embodiments 42 to 44, the embodiment 46 and its modifications, and in the embodiments 48 to 50, 52 and 55, the holding position of the vibrator is limited to the vicinity of the contact portion. This is an example in which vibration energy is concentrated on the assumed contact portion. Fifth, Embodiment 46 and its modifications, Embodiments 48 to 50, Embodiment 52, and Embodiment 55 use a different material for the contact supposed part from the case of the mobile phone to provide the contact supposed part. This is an example in which vibration energy is concentrated. In addition, as is clear from the examples in which the above classifications overlap, it is possible to employ a combination of a plurality of the above-described characteristics in practice.

  The various features of the present invention are not limited to the above embodiments. For example, as a modification of the embodiment 55, holes larger than the cross section of the piezoelectric bimorph element 2525 are respectively formed in the elastic bodies 5165b and 5165a whose cross sections are shown in FIG. It is also possible to configure to hold at 5124 and 5126. In this case, the piezoelectric bimorph element 2525 does not directly contact the elastic members 5165b and 5165a, and the vibration energy of the piezoelectric bimorph element 2525 is prevented from being dispersed to the housing of the mobile phone 5101 via the elastic members 5165b and 5165a. It is possible to do.

  Further, the embodiment 55 has a structure in which vibrations at both ends of one piezoelectric bimorph element 2525 are transmitted to the left and right cartilage conduction portions 5124 and 5126 in the same manner as the embodiment 46 shown in FIG. Implementation of features such as Example 55 is not so limited. For example, the holding structure of the embodiment 55 in FIG. 83 may be applied to a structure in which one side of the piezoelectric bimorph element 2525 is supported by a cantilever structure as in the embodiment 42 in FIG. Further, in a configuration employing the piezoelectric bimorph element 2525b for the right ear and the piezoelectric bimorph element 2525a for the left ear as in Embodiment 52 of FIG. The holding structure of Example 55 may be applied.

  As described above, the cartilage conduction vibrating portions for the right ear and the left ear can be controlled independently as in the first to third embodiments in FIGS. 1 to 7 and the 52nd embodiment in FIG. 77. In addition, the vibration of the vibrating portion that is not brought into contact with the ear cartilage can be stopped. In this case, the distribution of the vibration energy when the vibration of the cartilage conduction part 5126 is stopped in FIG. 85A showing the state where the cartilage conduction part 5124 is in contact with the right ear 28 is the vibration acceleration and the amplitude at the position (1). Is the largest, and then the vibration acceleration and the amplitude decrease in the order of position (3), position (2), position (4) and position (5). On the other hand, in FIG. 85B showing a state in which the cartilage conduction part 5126 is in contact with the left ear 30, when the vibration of the cartilage conduction part 5124 is stopped, the distribution of the vibration energy is the vibration acceleration and the vibration acceleration at the position (2). The amplitude is the largest, and then the vibration acceleration and the amplitude decrease in the order of position (3), position (1), position (4), and position (5).

  FIG. 86 is a perspective view and a cross-sectional view of Example 56 according to the embodiment of the present invention, and are configured as a mobile phone 5201. The embodiment 56 is the same as the embodiment 55 shown in FIG. 83 except for the direction of holding the cartilage conduction vibration source 2525 constituted by the piezoelectric bimorph element. Description is omitted.

  In Embodiment 55 of FIG. 83, the metal plate 2597 of the cartilage conduction vibration source 2525 is arranged so as to be parallel to the front of the mobile phone 5101, and the main vibration direction is orthogonal to the GUI display unit 3405. On the other hand, in the embodiment 56 of FIG. 86, the metal plate 2599 of the cartilage conduction vibrating section 5225 is arranged to be perpendicular to the front of the mobile phone 5201. As a result, the embodiment 42 shown in FIG. The main vibration direction of the cartilage conduction vibration unit 5225 is parallel to the GUI display unit 3405 in the same manner as in the first modified example. The configuration of the embodiment 56 is the same as that shown in FIG. 85, except that the front side of the corner (the cartilage conduction part 5124 or 5126) of the mobile phone 5201 is applied to the ear cartilage, and the first modification of the embodiment 42. It is suitable for use in contacting the ear cartilage in such a manner that the upper surface of the corner is slightly pushed up in the same manner as described above. In addition, since vibration is concentrated on the cartilage conduction part 5124 or 5126, sufficient cartilage conduction can be obtained by simply applying the front side of the corner (the cartilage conduction part 5124 or 5126) to the ear cartilage.

  In Embodiment 56 of FIG. 86, the main vibration direction of the cartilage conduction vibration unit 5225 is parallel to the front surface (including the GUI display unit 3405) of the mobile phone 5201, so that a large area of the outer surface of the mobile phone 5201 is used. Vibration components transmitted to the front and back sides occupying are small. As a result, it is possible to further reduce sound leakage due to air conduction sound generated in these large areas.

  Note that the cartilage conduction vibrating portion 5225 having the orientation as in the embodiment 56 in FIG. 86 is not limited to the embodiment 56, and the embodiment 46 in FIG. 69, the embodiment 46 in FIG. 71, and the embodiment in FIG. 49 and other embodiments can be adopted.

  FIG. 87 is a block diagram related to Example 57 according to the embodiment of the present invention, which is configured as a mobile phone 5301. In the embodiment 57, a driving circuit of the piezoelectric bimorph element 5325 serving as a cartilage conduction vibration source is configured as a one-chip integrated power management IC 5303 together with a power management circuit for supplying power to each unit of the mobile phone 5301.

  The integrated power management IC 5303 includes a power management unit 5353, and an RF circuit connected to a digital baseband unit 5312, an analog baseband unit 5313, and an antenna 5345 constituting a telephone communication unit based on power supply from a battery 5348. A predetermined different power supply voltage is supplied to the unit 5322 and the like. The power management unit 5353 further includes an application processor 5339 corresponding to the control unit 39 and the like shown in another embodiment, and a camera unit 5317 (the rear main camera and the video camera inner camera shown in the other embodiments are collectively illustrated. ), Predetermined different power supply voltages are supplied to the liquid crystal display device 5343 and the touch panel 5368 in the display portion 5305, respectively. The application processor 5339 controls the entire mobile phone 5301 in cooperation with a memory 5337 (program holding function and data writing holding function are collectively shown), and also has a memory card 5319 (slots and cards are collectively shown) and a USB ( Signals can be transmitted and received to and from an external device via the (registered trademark) connection terminal 5320.

  The power management unit 5353 is also provided to the control unit 5321, the analog front end unit 5336, the amplifier 5341 for the videophone speaker 5351, the cartilage conduction sound processing unit 5338, the charge pump circuit 5354, and the like in the integrated power management IC 5303, respectively. A different power supply voltage is supplied to each of the power supply voltages. The charge pump circuit 5354 boosts the voltage for the piezoelectric bimorph element 5325 requiring a high voltage.

  The analog front-end unit 5336 receives an analog audio signal from the application processor 5339 external to the integrated power management IC 5303 and supplies it to the videophone speaker 5351 through the amplifier 5341. Provides audio signals. The analog front-end unit 5336 transmits the user's analog audio signal picked up by the microphone 5323 to the external application processor 5339.

  The charge pump circuit 5354 performs a boosting operation in cooperation with an external capacitor 5355 connected via external terminals 5355a and 5355b, and supplies a voltage necessary for driving the piezoelectric bimorph element 5325 to the amplifier 5340. Thus, the audio signal from the analog front end unit 5336 drives the piezoelectric bimorph element 5325 via the cartilage conduction acoustic processing unit 5338 and the amplifier 5340. Examples of the function of the cartilage conduction acoustic processing unit 5338 include the sound quality adjustment unit 238 and the waveform inversion unit 240 shown in the fourth embodiment of FIG. 8, the cartilage conduction low-pass filter 5040 shown in the fifth embodiment of FIG. The conduction equalizer 5038 and the like correspond to, but are not limited to.

  The control unit 5321 exchanges digital control signals with the application processor 5339 external to the integrated power management IC 5303, and controls the power management unit 5353. Also, the control unit 5321 controls the analog front end unit 5336 based on the instruction of the application processor 5339, and sends the analog audio signal received from the application processor 5339 to the amplifier 5341 for driving the videophone speaker 5351 or the cartilage conduction signal. For example, switching to send to the sound processing unit 5338 is performed. In addition, the analog front end unit 5336 also performs a process in which a pop sound accompanying the switching is not output to the earphone jack 5313 or the like.

  Further, the control unit 5321 exchanges digital control signals with the application processor 5339 external to the integrated power management IC 5303, and performs the cartilage conduction acoustic processing unit relating to the sound quality adjustment, waveform inversion, cartilage conduction low-pass filter, cartilage conduction equalizer, and the like exemplified above. Control.

  As described above, in the embodiment 57 of FIG. 87, the driving circuit of the cartilage conduction oscillating unit is configured as a one-chip integrated IC together with the power management circuit. The power supply voltage can be supplied to the cartilage conduction oscillating section in a unified manner with the supply of the power supply voltage to the various components, and the control thereof can also be performed in an integrated manner. In addition, since the cartilage conduction acoustic processing unit for the cartilage conduction vibrating unit is also a one-chip integrated IC together with the power management unit, control for acoustic processing and control of the power management unit can be performed in an integrated manner. When a piezoelectric bimorph element is used as the cartilage conduction oscillating unit, a high voltage is required for driving the same. However, the driving circuit of the cartilage conduction oscillating unit is integrated with the power management unit as a one-chip integrated IC as in the embodiment 57 in FIG. With this configuration, it is possible to drive the piezoelectric bimorph element without adding another chip for the booster circuit. Further, the cartilage conduction acoustic processing unit peculiar to the driving of the cartilage conduction vibration unit and the power management unit can be integrated with a one-chip integrated IC, so that the audio signal control of the piezoelectric bimorph element can be integrated. Therefore, it is possible to give a suitable cartilage conduction function to the mobile phone only by inputting a normal voice signal to the integrated IC and connecting the cartilage conduction vibrator to the integrated IC.

  Further, the analog front end unit is also formed as a one-chip integrated IC together with the power management unit, so that the switching adjustment of the audio signal output can be performed collectively. Specifically, transmission and reception of digital control signals between the integrated IC and the application processor and transmission and reception of analog voice signals between the integrated IC and the application processor relating to the functions of the entire mobile phone including the function of the cartilage conduction vibrator are performed. Can be integrated.

  The circuit configuration in which the driving circuit of the cartilage conduction vibration unit and the power management unit are configured as a one-chip integrated IC as in the embodiment 57 of FIG. 87 can be applied to the various embodiments described so far.

  FIG. 88 is a perspective view and a cross-sectional view of Example 58 according to the embodiment of the present invention, which is configured as a mobile phone 5401. The embodiment 58 is the same as the embodiment 55 shown in FIG. 83 except for a configuration for preventing sound leakage due to air conduction sound, which will be described later. Omitted.

  In the embodiment 58 shown in FIG. 88, as in the embodiment 55 shown in FIG. 83, the cartilage conduction portions 5124 and 5126 made of a hard material holding the cartilage conduction vibration source 2525 are carried via the elastic members 5165b and 5165a. A slight vibration is transmitted to the housing of the telephone 5401. As a result, the front and back surfaces occupying a large area of the outer surface of the mobile phone 5401 vibrate, and a slight sound leak due to air conduction sound occurs. In Example 58 of FIG. 88, as a countermeasure against such sound leakage, the outer surface of the housing of the mobile phone 5401 is covered with an elastic body 5463 except for the GUI display portion 3405 and the microphone 23. At this time, the elastic body 5463 is bonded so as to be integrated with the housing of the mobile phone 5401. Note that a portion of the GUI display portion 3405 is an opening so as not to hinder GUI operation. In addition, the microphone 23 is configured as a microphone cover 467 having a sponge-like structure or the like that does not hinder air conduction as in the fifth embodiment of FIG.

  The elastic body 5463 covering the outer surface of the housing of the mobile phone 5401 is preferably a vibration isolating material and a cushioning material such as a vinyl-based or urethane-based material similar to or similar to the elastic members 5165b and 5165a. Accordingly, in the embodiment 58 of FIG. 88, the cartilage conduction portions 5124 and 5126 made of a hard material holding the cartilage conduction vibration source 2525 are wrapped via the elastic members 5165b, 5165a and the elastic member 5463, and then carried. It is in contact with the housing of telephone 5401. Therefore, the cartilage conduction vibration source 2525 itself does not directly contact the housing of the mobile phone 5401.

  Further, the elastic body 5463 is adhered so as to be integrated with a large area of the housing surface of the mobile phone 5401 instead of the detachable cover as in the fifth embodiment of FIG. Vibration in a large area on the surface of the housing of the mobile phone 5401 is suppressed in both the inside and outside directions with its amplitude, and the vibration energy is absorbed. Further, the surface of the mobile phone 5401 that comes into contact with air also has elasticity. Thus, generation of air-conducted sound from the housing surface of the mobile phone 5401 caused by the vibration of the cartilage conduction vibration source 2525 transmitted to the housing of the mobile phone 5401 is reduced. On the other hand, since the elastic body 5463 has an acoustic impedance similar to that of the ear cartilage, cartilage conduction from the cartilage conduction parts 5124 and 5126 to the ear cartilage is good. Note that the covering of the housing surface of the mobile phone 5401 with the elastic body 5463 also functions as a protector when the mobile phone 5401 collides with the outside.

  FIG. 89 is a perspective view and a cross-sectional view of Example 59 according to the embodiment of the present invention, and are configured as a mobile phone 5501. The embodiment 59 is the same as the embodiment 42 shown in FIG. 65 except for a configuration for preventing sound leakage due to air conduction sound, and therefore the cross-sectional views of FIG. 89 (B) and FIG. Portions common to the cross-sectional views of FIG. 65A and FIG. 65B are denoted by the same reference numerals, and description thereof will be omitted unless necessary. Also, since the perspective view of FIG. 89A is common to that of the embodiment 58 of FIG. 88A, the common parts are denoted by the same reference numerals and description thereof will be omitted unless necessary.

  In the embodiment 59 of FIG. 89, one end of the piezoelectric bimorph element 2525 is held in a hole of the support structure 3800a extending inward from the side surface 3807 and the upper surface 3807a of the mobile phone 5501 and holding the cartilage conduction vibration source 2525. Therefore, the vibration of the cartilage conduction vibration source 2525 is transmitted from the support structure 3800a to the housing of the mobile phone 5501 through the side surface 3807 and the upper surface 3807a of the mobile phone 5501, and the front and the front occupying a large area of the outer surface of the mobile phone 5501. The back side vibrates. The sound leakage due to the generation of the air-conducted sound is larger than in the case of the embodiment 56 of FIG. However, in the embodiment 59 of FIG. 89, as in the case of the embodiment 58 of FIG. 88, as a countermeasure against such sound leakage, the outer surface of the housing of the cellular phone 5501 except for the GUI display portion 3405 and the microphone 23 is made of an elastic material. Coat with 5563. At this time, the elastic body 5563 is bonded so as to be integrated with the housing of the mobile phone 5501. Note that a portion of the GUI display portion 3405 is an opening so as not to hinder GUI operation. In addition, the microphone 23 is configured as a microphone cover 467 having a sponge-like structure or the like that does not hinder air conduction as in the fifth embodiment of FIG. These are the same as the embodiment 58 of FIG.

  The elastic body 5563 covering the outer surface of the housing of the mobile phone 5501 is preferably made of a vibration isolating material and a cushioning material such as a vinyl type or a urethane type in the same manner as the embodiment 58 in FIG. With the configuration described above, also in the embodiment 59 of FIG. 89, the vibration of the large area of the housing surface of the mobile phone 5501 is suppressed in both the inner and outer directions in the amplitude by the weight and elasticity of the elastic body 5563 to be covered. And the vibration energy is absorbed. Further, the surface of the mobile phone 5501 that comes into contact with air also has elasticity. Thus, the generation of air-conducted sound from the housing surface of the mobile phone 5501 due to the vibration of the cartilage conduction vibration source 2525 is reduced. On the other hand, since the elastic body 5563 has an acoustic impedance similar to that of the ear cartilage, the cartilage conduction from the upper corner 3824, which is a portion suitable for applying to the ear cartilage such as an tragus, is good. Also, the covering of the housing surface of the mobile phone 5501 with the elastic body 5563 also functions as a protector when the mobile phone 5501 collides with the outside, similarly to the embodiment 58 of FIG.

  FIG. 90 is a perspective view and a cross-sectional view of Example 60 according to the embodiment of the present invention, which is configured as a mobile phone 5601. The embodiment 60 is the same as the embodiment 46 shown in FIG. 69 except for a configuration for preventing sound leakage due to air conduction sound. Therefore, the common parts are denoted by the same reference numerals and the description will be omitted unless necessary. .

  In the embodiment 60 of FIG. 90, elastic bodies 5663a and 5663b serving as protectors are provided at the upper two corners of the mobile phone 5601 in the same manner as the embodiment 46 of FIG. The inner side also serves as a holding section at both ends of the cartilage conduction vibration source 2525, and the outer side also serves as a cartilage conducting section that contacts the ear cartilage. The elastic portions 5663a and 5663b are made of an elastic material (silicone-based rubber, a mixture of silicone-based rubber and butadiene-based rubber, natural rubber, or a structure in which air bubbles are sealed in these materials) having an acoustic impedance similar to that of the ear cartilage. And a structure in which a layer of air bubbles as seen in a transparent packing sheet material is separated and sealed with a thin film of a synthetic resin.

  In the embodiment 60 of FIG. 90 also, some components of the vibration of the elastic portions 5663a and 5663b holding the cartilage conduction vibration source 2525 are transmitted to the housing of the mobile phone 5601, and the outer surface of the mobile phone 5601 The front and back surfaces that occupy a large area of the housing vibrate, generating air conduction sound. However, also in the embodiment 60 of FIG. 90, as a countermeasure against the sound leakage caused by the above-described air conduction sound, the elastic body 5663 of the same material is extended in a sheet shape from the elastic body portions 5663a and 5663b. Reference numeral 5663 covers the outer surface of the housing of the mobile phone 5601 except for the GUI display portion (the same portion as 3405 in FIGS. 88 and 99) and the microphone 23. In the embodiment 60 of FIG. 90 as well, as in the embodiment 58 of FIG. 88 and the embodiment 59 of FIG. 89, the elastic body 5663 is bonded so as to be integrated with the housing of the mobile phone 5601. Note that a portion of the GUI display portion 3405 is an opening so as not to hinder GUI operation. In addition, the microphone 23 is configured as a microphone cover 467 having a sponge-like structure or the like that does not hinder air conduction as in the fifth embodiment of FIG. These are the same as the embodiment 58 in FIG. 88 and the embodiment 59 in FIG.

  With the configuration described above, also in the embodiment 60 of FIG. 90, the vibration of the large area of the housing surface of the mobile phone 5601 is suppressed in both the inner and outer directions in the amplitude by the weight and elasticity of the elastic body 5663 to be covered. And the vibration energy is absorbed. Further, the surface of the mobile phone 5601 which comes into contact with air also has elasticity. Thus, the generation of air conduction sound from the housing surface of the mobile phone 5601 due to the vibration of the cartilage conduction vibration source 2525 is reduced. Note that covering the surface of the housing of the mobile phone 5601 with the elastic body 5663 also functions as a protector for portions other than the elastic body portions 5663a and 5663b.

  FIG. 91 is a perspective view and a sectional view of Example 61 according to the embodiment of the present invention, which are configured as a mobile phone 5701. The embodiment 61 is the same as the embodiment 55 shown in FIG. 83 except for a configuration for preventing sound leakage due to air conduction sound. .

  In the embodiment 61 of FIG. 91, both ends of the cartilage conduction vibration source 2525 are held by the cartilage conduction portions 5124 and 5126 made of a hard material in the same manner as the embodiment 55 shown in FIG. The mobile phone 5701 is supported by a housing thereof. In this structure, as described in the embodiment 58 of FIG. 88, a slight vibration is transmitted to the housing of the mobile phone 5701, and sound leakage occurs due to air conduction sound generated from the front and back surfaces. In the embodiment 61 of FIG. 91, as a countermeasure against such sound leakage, an internal component 5748 of the mobile phone 5701 including a battery or the like is pressed and fixed to the inner surface of the housing of the mobile phone 5701 by pressing and fixing such as a screw metal plate. It has a structure 5701h. As a result, the weight of the internal structure 5748 including the battery and the like is integrated with the housing of the mobile phone 5701, and the vibration of the large area of the housing is suppressed in both the inside and outside directions at the amplitude, so that the generation of the air conduction sound is reduced.

  In Example 61 in FIG. 91, the extra space in the housing of the mobile phone 5701 is filled with a sound absorbing filler 5701i made of a nonwoven fabric or the like. Thus, the extra space in the housing of the mobile phone 5701 is subdivided, preventing resonance of air in the housing, and mitigating the generation of air conduction sound. In FIG. 91 (C), the internal structure 5748, the pressing and fixing structure 5701h, and the filling of the sound absorbing filler 5701i are shown in a simplified manner for the sake of easy understanding. The pressing and fixing structure 5701h is not limited to the structure in which the internal structure 5748 is pressed and fixed only to the back side of the mobile phone 5701 as shown in the figure. Note that in order to subdivide the excess space in the housing of the mobile phone 5701, a partition may be provided inside the housing instead of filling with the sound absorbing filler 5701i.

  The implementation of various features of the present invention shown in each of the above embodiments is not limited to the above embodiments. For example, in FIGS. 88 to 90 described above, the thickness of the cross section of the elastic body for covering and the thickness of the cross section of the housing are illustrated in the outer surface of the mobile phone in a portion such as the back surface occupying a large area. . However, as long as the strength of the housing is maintained, the thickness of the housing cross section is made as thin as possible, and the thickness of the elastic body section covering this is made as thick as possible, as if the housing is made of an elastic body. The sound leakage prevention effect may be further enhanced. At this time, the configuration in which the partition for extra space subdivision is provided inside the housing is advantageous for maintaining strength, and contributes to making the housing thinner.

  In the embodiment 60 shown in FIG. 90, the protectors, the elastic portions 5663a and 5663b serving also as the holding portions at both ends of the cartilage conduction vibration source 2525 and the cartilage conduction portion, and the elastic body 5663 are continuous with the same material. However, the present invention is not limited to such a configuration. For example, the elastic bodies 5663a and 5663b and the elastic body 5663 may be separate components, and do not necessarily need to be in contact with each other. Further, the elastic bodies 5663a and 5663b and the elastic body 5663 may be made of different materials.

  Further, for the sake of simplicity, in Embodiments 58 to 60 shown in FIGS. 88 to 90, a configuration in which the vibration of the mobile phone casing is covered with an external elastic body is shown, and in Embodiment 61 of FIG. The configuration in which the vibration of the mobile phone housing is suppressed by pressing and fixing the weight of the internal configuration of the mobile phone has been described. However, these are not limited to the case where they are separately used as in the embodiment, and the both may be used in combination to suppress the vibration from inside and outside the mobile phone housing.

  FIG. 92 is a perspective view and a side view of Example 62 according to the embodiment of the present invention, which is configured as a fixed telephone 5800. As shown in the perspective view of FIG. 92A, the fixed telephone 5800 includes a telephone main body 5801 and a cordless handset 5881. A telephone body 5801 is provided with a display portion 5805, a videophone camera 5817, a videophone microphone 5823, a videophone speaker 5851, and the like.

  FIG. 92B shows a state in which slave unit 5881 of fixed telephone 5800 is set on charger 5848. Handset 5881 is the same as cordless handset 5881 in FIG. As shown in FIG. 92 (B), the cordless handset or cordless handset 5881 (hereinafter referred to as a cordless handset 5881) has a cartilage conduction part 5824 having a gentle convex surface. When the receiver 5881 is placed on the ear, the receiver 5881 naturally fits in the depression of the ear whose bottom is the ear canal opening, and comes into contact with the ear cartilage in a wide area. The cordless handset or handset 5881 also has a transmitter 1423 similar to that shown in the embodiment of the mobile phone.

  FIG. 92 (C) illustrates a side surface of the cordless handset or handset 5881. When the cordless handset (or handset) 5881 is applied to the ear 30, the cartilage conduction part 5824 having a gentle convex surface is connected to the ear canal opening. The figure shows a state in which it fits in a pit of the ear whose bottom is, and is in contact with the ear cartilage over a wide area. As is clear from the side view of FIG. 92 (C), in Example 62, the cartilage conduction portion 5824 has a shape forming a part of a spherical surface. The earpiece in a normal handset has a concave surface in order to form a closed space in front of the ear, but in the case of a cartilage conduction handset according to the present invention, it has a convex surface, and the ear with the ear canal opening at the bottom. Can be formed into a natural shape that fits well into the recess.

  FIG. 93 is a block diagram of embodiment 62, and the same parts are denoted by the same reference numerals as in FIG. Also, since the configuration of the block diagram has many parts in common with the seventeenth embodiment in FIG. 29, corresponding parts are denoted by the same reference numerals as those parts. The description of these same or common parts will be omitted unless particularly necessary. 29. For the parts without the same numbers, for example, the videophone camera 5817 corresponds to the videophone inner camera 17 in the mobile phone 1601 in FIG. 29, and the functions thereof are basically the same. is there. Also, since the embodiment 62 is a fixed telephone, the system is different from that of a mobile telephone, but the basics of the telephone function are the same. Therefore, FIG. 93 shows the same as the telephone function unit 5845. The same applies to the power supply unit, and although the power supply is different, the basic functions are the same. Note that FIG. 93 illustrates charging contacts 1448a and 1548a for charging by placing a cordless handset (or handset) 5881 on the telephone body 5801 or the charger 5848.

  FIG. 94 is a side sectional view of the cordless handset according to the embodiment 62 and its modification, showing the relationship between the piezoelectric bimorph element forming the cartilage conduction vibration source and the cartilage conduction part having a convex surface. FIG. 94 (A) is a side sectional view of a cordless handset 5881 according to Embodiment 62, in which a vibration conductor 5827 is fixed inside a cartilage conduction part 5824, and the center of the piezoelectric bimorph element 2525d is attached to the vibration conductor 5827. I support them. Both ends of the piezoelectric bimorph element 2525d can freely vibrate, and the reaction is transmitted to the cartilage conduction part 5824 via the vibration conductor 5827.

  FIG. 94 (B) is a side sectional view of a cordless handset 5881a in a first modification of the embodiment 62. Although the cartilage conduction part 5824 in the cordless handset 5881a of the embodiment 62 is a part of the spherical surface, the cartilage conduction part 5824a in the first modified example has an obtuse cone shape. The configuration in which the vibration conductor 5827a is fixed inside the cartilage conduction part 5824a to support the center of the piezoelectric bimorph element 2525e is the same as that of the embodiment 62.

  FIG. 94 (C) is a side sectional view of a cordless receiver 5881b in a second modification of the embodiment 62. The shape of the cartilage conduction part 5824b in the cordless handset 5881b of the second modified example is an obtuse cone as in the first modified example. In the second modification in FIG. 94C, a vibration conductor 5827b is fixed inside the cartilage conduction part 5824b to support one end of the piezoelectric bimorph element 2525f. The other end of the piezoelectric bimorph element 2525f can freely vibrate, and its reaction is transmitted to the cartilage conduction part 5824b via the vibration conductor 5827b.

  FIG. 94 (D) is a side sectional view of a cordless receiver 5881c in a third modification of the embodiment 62. The shape of the cartilage conduction part 5824c in the cordless handset 5881c of the third modified example is an obtuse cone as in the first modified example and the second modified example. In the third modified example in FIG. 94D, the piezoelectric bimorph element 2525g for the bass side and the piezoelectric bimorph element 2525h for the treble side are directly attached to the inside of the cartilage conduction part 5824c, respectively, so that the vibrating surface sides thereof are in contact with each other. . Thereby, the vibrations of the piezoelectric bimorph element 2525g and the piezoelectric bimorph element 2525h are directly transmitted to the cartilage conduction part 5824c. As described above, by using a plurality of cartilage conduction vibration sources having different frequency characteristics in a complementary manner, the frequency characteristics of cartilage conduction can be improved.

  In each of the modified examples shown in FIGS. 94 (B) to 94 (D), the convex cartilage conduction part has a conical shape (cone). , The side of the cone fits into the ear canal opening, and can realize cartilage conduction from the entire circumference of the ear canal opening.

  FIG. 95 is a cross-sectional view of Example 63 according to the embodiment of the present invention, and is configured as stereo headphones 5981. FIG. 95 (A) is a cross-sectional view of the entire stereo headphone 5981, which has a cartilage conduction part 5924 for the right ear and a cartilage conduction part 5926 for the left ear. Each of the cartilage conduction part 5924 for the right ear and the cartilage conduction part 5926 for the left ear has a conical convex shape. A piezoelectric bimorph element 2525i and a piezoelectric bimorph element 2525j are attached to the inside of the cartilage conduction part 5924 for the right ear such that the vibrating surfaces thereof are in contact with each other. This structure is basically common to the third modification of the embodiment 62 in FIG. 94 (D). Similarly, a piezoelectric bimorph element 2525k and a piezoelectric bimorph element 2525m are attached to the inside of the cartilage conduction part 5926 for the left ear so that the vibrating surfaces thereof are in contact with each other.

  FIGS. 95 (B) and 95 (C) show that the cartilage conduction part 5924 for the right ear (and the cartilage conduction part 5926 for the left ear) has a conical (cone) convex surface, so that the size of the ear canal opening 30a is reduced. This is for explaining that the cartilage conduction part 5924 for the right ear (and the cartilage conduction part 5926 for the left ear) can be fitted to the external auditory meatus opening 30a regardless of individual differences, and for the right ear in Example 63, respectively. The portion of the cartilage conduction portion 5924 is enlarged and representatively shown. FIG. 95 (B) shows a case where an individual having a relatively small external auditory canal mouth 30a uses the stereo headphones 5981. The relatively distal end portion of the cone of the cartilage conduction part 5924 for the right ear contacts the entire circumference of the external auditory canal opening 30a. I have. On the other hand, FIG. 95 (C) shows a case where an individual with a relatively large ear canal mouth 30a uses the stereo headphones 5981. The root part is in contact with the entire circumference of the ear canal mouth 30a. However, as apparent from consideration of FIG. 95 (B) and FIG. 95 (C), the depth at which the cone of the cartilage conduction part 5924 for the right ear enters the external auditory canal opening 30a has no significant effect on cartilage conduction. Since the cartilage conduction part 5924 for the ear is formed in a conical shape, it is understood that the cartilage conduction part 5924 for the right ear always suitably contacts the entire circumference of the external ear canal mouth 30a regardless of the individual difference in the size of the external ear canal mouth 30a. In addition, the cartilage conduction part 5926 for the left ear also suitably contacts the entire circumference of the ear canal mouth 30a regardless of the individual difference of the ear canal mouth 30a, similarly to the cartilage conduction part 5924 for the right ear.

  As in Embodiment 63, if a stereo audio output device is configured by using a pair of audio output devices having a cartilage conduction part having a conical convex surface and a cartilage conduction vibration source transmitting vibration to the cartilage conduction part. Since the cartilage conduction portion can be sandwiched from the left and right and pressed against the external auditory canal openings of both ears, a suitable contact between the cartilage conduction portion having a conical convex surface and the entire periphery of the external ear canal opening can be achieved.

  In Example 63, the cones of the cartilage conduction part 5924 for the right ear and the cartilage conduction part 5926 for the left ear are formed at obtuse angles as in the third modification of the example 62 in FIG. 94 (D). However, this may be formed at an acute angle if necessary. In this case, the tip is rounded so that there is no danger. Further, in Example 63, two piezoelectric bimorph elements having the same frequency characteristics are attached to the cartilage conduction part 5924 for the right ear and the cartilage conduction part 5926 for the left ear, respectively. The frequency characteristics may be different as in the third modification of the example 62. Further, each of the cartilage conduction part for right ear 5924 and the cartilage conduction part for left ear 5926 may be provided with one piezoelectric bimorph element. In this case, in addition to the direct attachment, it may be configured to be supported via a vibration conductor as in the embodiment 62 and its modifications in FIGS. 94 (A) to 94 (C).

  The various features of the present invention described above are not limited to the above-described embodiment, but can be implemented by other embodiments. For example, in the above-described Embodiment 62 and Embodiment 63, as the cartilage conduction vibration source, another vibration source such as an electromagnetic vibrator as shown in the above other embodiment can be adopted instead of the piezoelectric bimorph element. is there. Although the embodiment 62 is configured as a receiver of a fixed telephone and the embodiment 63 is configured as a headphone, implementation of the above-described features is not limited thereto. In other words, the various features relating to making the cartilage conduction vibrating portion shown in the above embodiments convex are also applicable to, for example, an earphone or a headset as shown in the other embodiments. The implementation of the present invention for a fixed telephone is not limited to the features shown in the above-described Embodiment 62. Can be implemented as a receiver.

  FIG. 96 is a perspective view, a cross-sectional view, and a top view of Example 64 according to the embodiment of the present invention, which is configured as a mobile phone 6001. The embodiment 64 is the same as the embodiment 55 shown in FIG. 83 except for the holding structure of the cartilage conduction vibration source 2525 (hereinafter, referred to as the piezoelectric bimorph element 2525) constituted by the piezoelectric bimorph element. Numbers are assigned and description is omitted unless necessary.

  The embodiment 64 in FIG. 96 is similar to the embodiment 55 in FIG. 83 in that the main vibration direction of the piezoelectric bimorph element 2525 is orthogonal to the GUI display portion 3405, but is characterized by its holding structure. FIG. 96 (A) is a perspective view of the mobile phone 6001 of Example 64 when viewed from the front. The structure holding the piezoelectric bimorph element 2525 is a cartilage conduction part 6024 for the right ear and a cartilage conduction part 6026 for the left ear. And a connecting portion 6027 connecting them is integrally formed of a hard material. The piezoelectric bimorph element 2525 is supported inside the cartilage conduction part for right ear 6024, and the vibration can be directly transmitted to the cartilage of the right ear that comes into contact with the cartilage conduction part for right ear 6024. Further, the vibration of the piezoelectric bimorph element 2525 supported by the cartilage conduction part for right ear 6024 is transmitted to the cartilage conduction part for left ear 6026 through the coupling part 6027 which is a vibration conductor, so that the cartilage conduction part for left ear 6026 It is also possible to obtain cartilage conduction by contacting the cartilage with the left ear cartilage.

  Further, the above-described rigid integral molding structure is attached to the housing of the mobile phone 6001 via an elastic body 6065 such as an ethylene-based resin or a urethane-based resin. There is no direct contact. Therefore, the elastic body 6065 functions as a vibration isolating material and a cushioning material, and transmission of the vibration of the piezoelectric bimorph element 2525 to the housing of the mobile phone 6001 is reduced. This prevents the nearby person from hearing the reception sound due to the air-conducted sound generated by the vibration of the housing of the mobile phone 6001, which may cause annoyance or privacy leakage. Since the elastic body 6065 transmits vibration for cartilage conduction, good cartilage conduction can be obtained even when the front side of the corner of the elastic body 6065 is applied to the ear cartilage.

  FIG. 96B is a top cross-sectional view of the mobile phone 6001 in a B1-B1 cross section (a cross section of the mobile phone 6001 cut from the center) in FIG. 96A. FIG. 96 (B) shows a state of a cross section at the center of the upper part, and the cantilever support is provided with the side where the terminal 2525b of the piezoelectric bimorph element 2525 is provided inside the cartilage conduction part 6024 for the right ear in the integrally molded structure as a holding end. You can see how it is being done. Although the detailed structure is not shown, the inside of the cartilage conduction part for the right ear 6025 holds the piezoelectric bimorph element 2525 by securing the terminal 2525b, the connection space thereof, and the connection wire extraction groove.

  On the other hand, as is clear from FIG. 96 (B), the other end 2525c of the piezoelectric bimorph element 2525 is a free vibration end, and an inertia weight (inertial weight) 6025 is attached. The inertia weight 6025 is for increasing the weight of the other end 2525c, thereby suppressing the movement of the other end 2525c by inertia, and increasing the vibration energy taken out from the holding end side by the vibration of the piezoelectric bimorph element 2525 as a reaction. is there. In other words, the component that causes the holding end side of the piezoelectric bimorph element 2525 to vibrate together with the hard integrally molded structure with the inertial weight 6025 as a fulcrum is increased.

  As is clear from FIG. 96 (B), the thickness of the connecting portion 6027 is thinner than the cartilage conduction portion 6024 for the right ear and the cartilage conduction portion 6026 for the left ear, and bypasses the internal components of the mobile phone 6001. Then, the cartilage conduction part 6024 for the right ear and the cartilage conduction part 6026 for the left ear are connected in a balance rod shape. This makes it possible to lay out the inner camera 6017 and the like that are preferably arranged above the mobile phone 6001. As described above, the thickness of the connecting portion 6027 may be enough to rigidly fix the positional relationship between the cartilage conducting portion 6024 for the right ear and the cartilage conducting portion 6026 for the left ear. Is also possible. In addition, since the cross-sectional area of the connecting portion 6027 is sufficiently small from the viewpoint of the function as a vibration conductor, the degree of freedom of the connecting portion 6027 is large in relation to the arrangement of components inside the mobile phone 6001 from this point. .

  FIG. 96 (C) is an external view of the mobile phone 6001 as viewed from above, where an integrally molded structure including the cartilage conduction part 6024 for the right ear, the cartilage conduction part 6026 for the left ear, and the connecting part 6027 connecting these parts is exposed. ing. The elastic body 6065 is exposed on both sides in such a manner as to be sandwiched therebetween. FIG. 96 (C) shows the relationship between the internal piezoelectric bimorph element 2525, the inertial weight 6025 and the inner camera 6017, and the boundary between the cartilage conduction part 6024 for the right ear, the connecting part 6027 and the cartilage conduction part 6026 for the left ear. Indicated by.

  FIG. 96D is an upper cross-sectional view of the mobile phone 6001 in a B2-B2 cross section in FIGS. 96A to 96C. Also in the side cross-sectional view, the cartilage conduction part for the right ear 6024 is attached to the housing of the mobile phone 6001 via the elastic body 6065 as a vibration isolating material and a cushioning material so as not to directly contact the housing of the mobile phone 6001. You can see it is attached.

  FIG. 97 is a perspective view, a sectional view, and a top view of Example 65 according to the embodiment of the present invention, which is configured as a mobile phone 6101. Example 65 is the same as Example 64 in FIG. 96 except that the shapes of the cartilage conduction part 6124 for the right ear, the cartilage conduction part 6126 for the left ear, and the connecting part 6127 and the shape of the elastic body 6165 associated therewith are different. In the following, different parts will be described, and common parts will be denoted by the same reference numerals and description thereof will be omitted unless necessary.

  As is clear from the perspective view of FIG. 97 (A), in Example 65, the cartilage conduction part 6124 for the right ear, the cartilage conduction part 6126 for the left ear, and the connecting part 6127 connecting them cover the upper part of the mobile phone 6101. And is integrally molded of a hard material. Along with this, the elastic body 6165 is interposed between the integrally molded structure and the housing of the mobile phone 6101 from above and below so as to prevent direct contact between them.

  FIG. 97B is a top cross-sectional view of the mobile phone 6101 in the cross section B1-B1 in FIG. The cross section B1-B1 is a cross section of the mobile phone 6101 cut from the center, so there is no fundamental difference from the embodiment 64 in FIG. 96 (B), but the B1-B1 cross section is the front side of the mobile phone 6101. Alternatively, the cross section in the case of parallel movement approaching the back side is different from that of the embodiment 64 in FIG. 96 as is clear from FIG. As can be seen from FIG. 97B, in Example 65, the piezoelectric bimorph element 2525 is cantilevered inside the right ear cartilage conduction part 6124 with the end 2525c on the side where no terminal is provided as the holding end. Have been. On the other hand, the end of the piezoelectric bimorph element 2525 where the terminal 2525b is provided is a free vibration end, and an inertia weight 6125 is attached. Although the detailed structure is not shown, the inside of the inertial weight 6125 is attached to the piezoelectric bimorph element 2525 while securing a terminal 2525b, a connection space for the terminal 2525b, and a connection line extracting groove. Such selection of the holding end and the inertia weight attaching end is not unique to the embodiment 65, and the attaching method of the embodiment 65 may be adopted in the embodiment 64, and vice versa.

  As is clear from FIG. 97 (B), also in the embodiment 65, the thickness of the connecting portion 6127 is thinner than the cartilage conducting portion 6124 for the right ear and the cartilage conducting portion 6126 for the left ear. The right cartilage conduction part 6124 for the right ear and the cartilage conduction part 6126 for the left ear are connected in a balancing rod shape by bypassing the parts. In the embodiment 65, the width of the connecting portion 6127 is wide and covers the entire upper surface, so that the thickness of the connecting portion 6127 can be further reduced in terms of strength. Further, depending on the design, it is possible to make the connecting portion 6127 wrap around not only the upper surface but also the front side and the back side so that the strength can be further increased, and the thickness of the connecting portion 6127 can be made thinner.

  FIG. 97 (C) is an external view of the mobile phone 6101 as viewed from above, and shows only an integrally formed structure composed of the cartilage conduction part 6124 for the right ear, the cartilage conduction part 6126 for the left ear, and the connecting part 6127 connecting them. ing. Also in FIG. 97C, the interrelationship between the internal piezoelectric bimorph element 2525, the inertial weight 6125 and the inner camera 6117, and the boundary between the cartilage conduction part 6124 for the right ear, the connecting part 6127 and the cartilage conduction part 6126 for the left ear. Is indicated by a broken line.

  FIG. 97D is an upper cross-sectional view of the mobile phone 6101 in a B2-B2 cross section in FIGS. 97A to 97C. Also in the side sectional view of the embodiment 65, the mobile phone 6101 is provided via the elastic body 6165 as a vibration isolating material and a buffer so that the cartilage conduction part 6124 for the right ear does not directly contact the housing of the mobile phone 6101. It can be seen that it is attached to the housing.

  FIG. 98 is a perspective view, a cross-sectional view, and a top view of Example 66 according to the embodiment of the present invention, which is configured as a mobile phone 6201. Example 66 is also the same as Example 64 or FIG. 97 in FIG. 96 except that the shapes of the cartilage conduction part 6224 for the right ear, the cartilage conduction part 6226 for the left ear, and the connecting part 6227 and the shape of the elastic body 6265 associated therewith are different. Since it is common to Example 65, mainly different portions will be described, and common portions will be assigned the same reference numerals and description thereof will be omitted unless necessary.

  As is clear from the perspective view of FIG. 98 (A), in Example 66, the cartilage conduction part 6224 for the right ear and the cartilage conduction part 6226 for the left ear are exposed to the outside, but these are inside the housing. The connecting portions 6227 are connected and cannot be seen from the outside. Along with this, the elastic body 6265 is also visible from the outside only at a portion that separates the cartilage conduction part 6224 for the right ear and the cartilage conduction part 6226 for the left ear from the housing of the mobile phone 6201. The cartilage conduction part 6224 for the right ear and the cartilage conduction part 6226 for the left ear do not directly contact the housing. Therefore, as far as the appearance is concerned, Embodiment 66 can be said to be common to Embodiment 55 of FIG. 83 in appearance. However, its internal structure is different as explained below.

  FIG. 98B is a top cross-sectional view of the mobile phone 6201 taken along the line B1-B1 in FIG. 98A. As is clear from FIG. 98 (B), in Example 66, the cartilage conduction part 6224 for the right ear and the cartilage conduction part 6226 for the left ear are connected to each other inside the housing by the connecting part 6227. Note that the connecting portion 6227 does not touch the inside of the housing. As in Example 66, the function of transmitting the vibration of the cartilage conduction part for right ear 6224 supporting the piezoelectric bimorph element 2525 to the cartilage conduction part for left ear 6226, and the cartilage conduction part for right ear 6224 and the cartilage for left ear The function of rigidly integrating the conductive portion 6226 is also possible with the connecting portion 6227 inside the housing.

  FIG. 98 (C) is an external view of the mobile phone 6201 as viewed from above. The cartilage conduction part 6224 for the right ear, the cartilage conduction part 6226 for the left ear, and their vibrations are provided at both upper corners of the mobile phone 6201. An elastic body 6265 that shields from the body is visible. Also in FIG. 98C, the interrelationship between the internal piezoelectric bimorph element 2525, the inertial weight 6225, the inner camera 6217, and the connecting portion 6227 is indicated by broken lines.

  FIG. 98D is an upper cross-sectional view of the mobile phone 6201 taken along the line B2-B2 in FIGS. 98A to 98C. The side cross-sectional view of Embodiment 98 is basically the same as that of Embodiment 65 of FIG. 97B, but is a cross-section when the B2-B2 cross-section is translated from the side surface of the mobile phone 6201 to the center side. Is different from the embodiment 65 in FIG. 97 as is clear from FIG. 98 (A).

  In Embodiments 64 to 66 of FIGS. 96 to 98 described above, the main vibration direction of the piezoelectric bimorph element 2525 has been described as a direction orthogonal to the GUI display unit 3405. However, in these embodiments, the direction in which the piezoelectric bimorph element 2525 is held is not limited to this, and the main vibration direction of the piezoelectric bimorph element 2525 is set to a direction parallel to the GUI display unit 3405 (the vertical direction of the mobile phone). It may be. The setting of the main vibration direction of these piezoelectric bimorph elements 2525 has already been described in detail in the embodiment 56 of FIG. 86 in relation to the embodiment 55 of FIG.

  FIG. 99 is a perspective view and a sectional view of Example 67 of the embodiment of the present invention, which are configured as a mobile phone 6301. Example 67 is obtained by applying the structure of Example 66 of FIG. 98 in which the cartilage conduction part for the right ear and the cartilage conduction for the left ear are rigidly connected by a connection part to the embodiment 55 of FIG. 83, Since other parts are common, the common parts are assigned the same reference numerals as those of the embodiment 55 in FIG. 83, and the description will be omitted unless necessary.

  In Example 67, as is clear from FIG. 99 (B), the cartilage conduction portion 6324 for the right ear and the cartilage conduction portion 6326 for the left ear are rigidly and integrally connected inside the housing by the connecting portion 6327. ing. Further, the connecting portion 6327 does not touch the inside of the housing. In this respect, the embodiment 67 can be said to be common to the embodiment 66 of FIG. However, from a functional viewpoint, in the embodiment 67 of FIG. 99, the vibration of the piezoelectric bimorph 2525 is directly transmitted to the cartilage conduction part 6324 for the right ear and the cartilage conduction part 6326 for the left ear, respectively. The vibration transmission path of the portion 6327 is redundant.

  However, even when it is not necessary to transmit the vibration between the cartilage conduction part 6324 for the right ear and the cartilage conduction part 6326 for the left ear as in the embodiment 67, the integration of the both parts by the coupling part 6327 is performed by the housing. It has great significance in stabilizing attachment to the body. More specifically, in general, when the elastic body 6365 between the right ear cartilage conduction part 6324 and the left ear cartilage conduction part 6326 is softened or thickened in order to suppress the transmission of vibration to the housing, On the other hand, the holding of the cartilage conduction part for right ear 6324 and the cartilage conduction part for left ear 6326 to the housing becomes unstable. On the other hand, when the cartilage conduction part 6324 for the right ear and the cartilage conduction part 6326 for the left ear are rigidly connected by the connection part 6327 as in the embodiment 67, the mutual positions thereof are maintained, and the elastic body 6365 is softened. Even if the thickness is increased, both can be more stably attached to the housing.

  FIG. 100 is a cross-sectional view of Example 68 according to the embodiment of the present invention, which is configured as a mobile phone 6401. Example 68 is obtained by applying the structure of Example 65 in FIG. 97 in which the cartilage conduction part for the right ear and the cartilage conduction for the left ear are rigidly connected by the connection part to the embodiment 52 in FIG. 77. In this respect, the common parts are denoted by the same reference numerals as those of the embodiment 52 in FIG. 77, and description thereof will be omitted unless necessary.

  In the embodiment 68 of FIG. 100, the cartilage conduction part 6424 for the right ear, the cartilage conduction part 6426 for the left ear, and the connecting part 6427 connecting these parts cover the upper part of the mobile phone 6401 in the same manner as the embodiment 65 of FIG. And is integrally molded of a hard material. The elastic body 6465 is interposed between the integrally molded structure and the housing of the mobile phone 6401 from above and below so as to prevent direct contact between them. A right ear piezoelectric bimorph element 2525q is attached to the right ear cartilage conduction section 6424, and a left ear piezoelectric bimorph element 2525p is attached to the left ear cartilage conduction section 6426, with one side of the element being supported in a cantilever structure. ing. Similarly to Embodiment 77, the right ear piezoelectric bimorph element 2525q and the left ear piezoelectric bimorph element 2525p can be controlled independently of each other.

  In the embodiment 68 of FIG. 100, as in the embodiment 67 of FIG. 99, the first significance of the connecting portion 6427 is that the cartilage conducting portion for right ear 6424 and the cartilage conducting portion for left ear 6326 are rigidly connected to each other. Is maintained so that the elastic body 6465 can be attached to the housing more stably even if the elastic body 6465 is softened or thickened.

  In the embodiment 68 shown in FIG. 100, the vibration of the left ear piezoelectric bimorph element 2525p is further transmitted to the right ear cartilage conduction part 6424 via the connecting part 6427, and the vibration of the right ear piezoelectric bimorph element 2525q is also provided. Is transmitted in the direction of the cartilage conduction part 6426 for the left ear. As described above, in the 68th embodiment, the vibration of the left ear piezoelectric bimorph element 2525p is included in the integrally molded structure of the right ear cartilage conduction part 6424, the left ear cartilage conduction part 6426, and the connecting part 6427 connecting them. The vibration of the right ear piezoelectric bimorph element 2525q is mixed. As a result, when the piezoelectric bimorph element for left ear 2525p and the piezoelectric bimorph element for right ear 2525q generate vibrations whose waveforms are inverted from each other, the vibrations cancel each other out in the integrally molded structure, and the mobile phone 6401 from the entire integrally molded structure. The generation of the air conduction sound based on the vibration transmitted to the housing of is suppressed. Even in such a state, when one of the cartilage conduction part 6424 for the right ear and the cartilage conduction part 6426 for the left ear is brought into contact with the ear cartilage, the piezoelectric bimorph element for right ear 2525q directly held or the left one is used. Since the vibration of the ear piezoelectric bimorph element 2525p is larger than the vibration via the connecting portion 6427, the difference is favorably transmitted to the ear cartilage.

  The various features shown in each of the above embodiments are not limited to the implementation in each embodiment, but can be implemented in other various embodiments. For example, by modifying the embodiment 68 in FIG. 100 and omitting the piezoelectric bimorph element for right ear 2525q, the embodiment according to the embodiment 65 in FIG. 97 can be realized. In other words, since the vibration of the piezoelectric bimorph element 2525p supported by the left ear cartilage conduction part 6426 is transmitted to the right ear cartilage conduction part 6424 through the connection part 6427, the right ear cartilage conduction part that does not hold the piezoelectric bimorph element. Even if 6424 is brought into contact with the cartilage of the right ear, good cartilage conduction can be obtained. As shown in this modification, the holding of the cartilage conduction vibration source transmitting the vibration through the connecting portion is not limited to holding the piezoelectric bimorph element 2525 in the horizontal direction as in the embodiment 65 of FIG. It is also possible to hold the piezoelectric bimorph element 2525p in the longitudinal direction as in the modification of the embodiment 68 of the present invention. These are examples, and it is also possible to arrange and hold the cartilage conduction vibration source in various other shapes and orientations according to various component layouts inside the mobile phone.

  FIG. 101 is a system configuration diagram and a usage explanatory diagram of a working example 69 according to the embodiment of the present invention. As shown in FIG. 101 (A), the embodiment 69 is configured as a mobile phone system including a normal mobile phone 1601 and a micro mobile phone 6501 having a cartilage conduction part 6524, and a Bluetooth (registered trademark) is provided between the two. ) Can be used for short-range communication by radio waves 6585 of the communication system. The mobile phone system of the embodiment 69 has many points in common with the embodiment 16 of FIGS. 27 and 28 and the embodiment 17 shown in the block diagram of FIG. Therefore, the description of the embodiment 69 will be made based on the block diagram of FIG. 27 for the external appearance and the block diagram of FIG. 29 for the internal configuration, and the common parts will be denoted by the same reference numerals and the description thereof will be omitted unless necessary.

  Embodiment 69 of FIG. 101 differs from Embodiments 16 and 17 in that, as described above, the cartilage conduction output portion capable of short-range communication with the ordinary mobile phone 1601 is capable of functioning independently. It is configured as a telephone 6501. The ultra-small mobile phone 6501 can perform a normal mobile phone call operation using the operation unit 6509 and the display unit 6505, but is characterized by its transmission unit and reception unit. First, as for the earpiece, a cartilage conduction part 6524 is provided at the upper corner of the microminiature mobile phone 6501, and the piezoelectric bimorph element 2525 is cantilevered vertically in the cartilage conduction part. In this sense, the configuration of the micro cellular phone 6501 of the embodiment 69 is common to that of the embodiment 43 of FIG. On the other hand, in the transmitting section, a contact type bone conduction microphone 6523 is provided near the lower corner of the micro cellular phone 6501. The microminiature mobile phone 6501 uses the cartilage conduction part 6524 in contact with the otocartilage such as the tragus, and the bone conduction microphone 6523 in contact with the cheekbone or the mandible.

  FIG. 101 (B) shows that the cartilage conduction part 6524 is brought into contact with the otocartilage such as the tragus while the display unit 6505 faces the cheek in the manner shown in FIG. Indicates the state of contact. Note that in FIG. 101B, the cartilage conduction portion 6524 and the bone conduction microphone 6523 are shown to show the vertical positional relationship, but when they are used as shown in FIG. So it is not actually visible from the front.

  On the other hand, FIG. 101 (C) shows that the cartilage conduction part 6524 is brought into contact with the otocartilage such as the tragus from the side in the direction shown in FIG. The state in which the microphone 6523 is applied to the cheekbone is shown. Since the microminiature mobile phone 6501 of the embodiment 69 is small, the microminiature mobile phone 6501 can be used in any of the shapes of FIG. 101B and FIG. Note that when used in the manner shown in FIG. 101C, care should be taken so that a finger does not grip the display surface 6505, so that the display surface 6505 can be prevented from being stained by contact of the cheek with the display surface 6505. Note that the bone conduction microphone 6523 can be applied to the upper part of the mandible while contacting the cartilage conduction part 6524 with the otocartilage such as the tragus by changing the angle at which the ultra-small mobile phone 6501 is applied to the face.

  The ordinary mobile phone 1601 and the microminiature mobile phone 6501 have different telephone numbers, and can be used independently of each other. Will be described. The ordinary mobile phone 1601 is often stored in a bag in a standby state because of its size. be able to.

  The first of the cooperation between the two is to use the micro cellular phone 6501 as an incoming call vibrator of the ordinary cellular phone 1601 in the above-mentioned possession state. That is, when there is an incoming call to the ordinary mobile phone 1601, this is transmitted to the ultra-small mobile phone 6501 by the radio wave 6585 of the short-range wireless system, and the incoming call vibrator of the ultra-small mobile phone 6501 is activated, so that the normal mobile phone is activated. Even if the telephone 1601 is in a bag or the like, the incoming call can be surely noticed. As described later, in Embodiment 69, a dedicated incoming vibrator using an eccentric motor or the like is employed as the incoming vibrator of the micro cellular phone 6501. However, as shown in Embodiment 13, the cartilage conduction vibrator is also used. It is also possible to vibrate as an incoming call vibrator.

  The second of the cooperation between the two is that the ultra-small mobile phone 6501 is used as a receiver of a normal mobile phone 1601 in the above-mentioned possession state. That is, when there is an incoming call to the ordinary mobile phone 1601, this is transmitted to the microminiature mobile phone 6501 by the radio wave 6585 of the short-range wireless system, and the microminiature mobile phone 6501 performs a receiving operation. A call is made using the bone conduction microphone 6523. As a result, it is possible to make a call using the advantage of cartilage conduction in the ordinary mobile phone 1601. At this time, it goes without saying that the ordinary mobile phone 1601 may be left in a bag or the like.

  A third type of cooperation between the two is that a micro cellular phone 6501 is used as a receiver during a videophone call using a normal cellular phone 1601. During a videophone call, the user talks with the normal mobile phone 1601 away from his face, so that the microphone is far from the mouth and the voice of the other party is output from the speaker away from the ear. There are many troubles. On the other hand, if the ultra-small mobile phone 6501 is used as a receiver, a telephone call taking advantage of cartilage conduction can be made during a videophone call in a normal mobile phone 1601. Details of the above cooperation will be described later.

  FIG. 102 is a block diagram of embodiment 69, and the same parts are denoted by the same reference numerals as in FIG. As described above, the block diagram of FIG. 102 has many portions common to the block diagram of FIG. 29, and the corresponding portions are denoted by the same reference numerals as those components. Particularly, the ordinary mobile phone 1601 has the same configuration in FIG. 29 and FIG. However, some components are omitted in FIG. Note that, for convenience of explanation, the ordinary mobile phone 1601 arranged and illustrated in the upper part of FIG. 29 is illustrated in the lower part of FIG. 102.

  When there is an incoming call on the normal mobile phone 1601, the fact is transmitted to the short-range communication unit 6546 by the radio wave 6585 from the short-range communication unit 1446, and the control unit 6539 sets the predetermined normal mobile phone call notification pattern. To vibrate incoming vibrator 6525. In addition, control unit 6539 causes display unit 6505 to display a message indicating an incoming call to ordinary mobile phone 1601.

  When a reception operation is performed by the operation unit 6509, the fact is transmitted to the short-range communication unit 1446 by a radio wave 6585 from the short-range communication unit 6546, and the control unit 239 of the ordinary mobile phone 1601 starts a call by the telephone function unit 45. I do. As a result, a reception sound signal is transmitted from the reception processing unit 212 of the ordinary mobile phone 1601 to the short-range communication unit 6546 of the micro cellular phone 6501 via the short-range communication unit 1446. The reception processing unit 6512 of the micro cellular phone 6501 vibrates the cartilage conduction unit 6524 accordingly. On the other hand, the transmission sound picked up by the bone conduction microphone 6523 is transmitted from the transmission processing unit 6522 of the micro cellular phone 6501 to the short distance communication unit 1446 of the ordinary mobile phone 1601 via the short distance communication unit 6546. The ordinary mobile phone 1601 transmits a transmission sound signal via the telephone communication unit 47 in response to this.

  On the other hand, also when there is an incoming call of the microminiature mobile phone 6501, the control section 6539 vibrates the incoming call vibrator 6525 according to the preset microminiature mobile phone call notification pattern. In addition, the control unit 6539 displays on the display unit 6505 that a call has been received to the micro cellular phone 6501.

  When a reception operation is performed using the operation unit 6509, the control unit 6539 starts a telephone call using the telephone function unit 6545. Accordingly, the reception processing unit 6512 vibrates the cartilage conduction unit 6524 according to the reception signal received by the telephone communication unit 6547. On the other hand, the transmission processing unit 6522 transmits a transmission sound signal via the telephone communication unit 6547 based on the transmission sound picked up by the bone conduction microphone 6523.

  As described above, any incoming call can be identified by changing and setting the vibration pattern of incoming call vibrator 6525. In addition, as described above, display unit 6505 also displays which incoming call is. Regardless of the incoming call, reception can be started by the same operation of the operation unit 6509 as described above. Note that the control unit 6539 operates according to the program stored in the storage unit 6537 in the same manner as in the other embodiments. The storage unit 6537 can temporarily store data necessary for the control of the control unit 6539, and can also store various measurement data and images. The power supply unit 6548 supplies necessary power to each unit of the micro cellular phone 6501.

  FIG. 103 is a perspective view of Example 70 according to the embodiment of the present invention, which is configured as a mobile phone 6601. The mobile phone 6601 of the embodiment 70 has many parts in common with the mobile phone system of the embodiment 69 in FIG. 101 and FIG. 102.

  The embodiment 70 of FIG. 103 differs from the embodiment 69 in that the cartilage conduction output portion capable of short-range communication is not configured as a mobile phone capable of functioning independently, but is a part of the mobile phone 6601. It is configured as a possible transmission and reception unit. In this sense, the configuration of the embodiment 70 is common to the embodiment 13 of FIG. This will be specifically described below with reference to FIG.

  The mobile phone 6601 includes a mobile phone lower portion 6601a and a mobile phone upper portion 6601b as shown in FIG. 103A, and both can be separated. In addition, the connection and separation of the mobile phone lower part 6601a and the mobile phone upper part 6601b utilize appropriate well-known means such as a hook-and-loop fastener and a fitting structure. In the upper part of the mobile phone 6601b, a cartilage conduction part 6626 is provided at the upper corner of the mobile phone 6601 in the same manner as in the other embodiments, and the piezoelectric bimorph element 2525 is cantilevered in the horizontal and vertical directions inside thereof. This structure is the same as that of the embodiment 42 shown in FIG. On the other hand, in the transmitting section, a contact-type bone conduction microphone 6523 is provided near the other corner of the upper part of the mobile phone 6601. The upper operation portion 6609 is for performing a reception operation or the like when the upper portion of the mobile phone 6601b is separated, and when the upper portion 6609 is coupled to the lower portion of the mobile phone 6601a as shown in FIG. It has been disabled.

  The mobile phone 6601 is normally used in a state where the lower mobile phone 6601a and the upper mobile phone 6601b are connected as shown in FIG. At this time, the vibration of the piezoelectric bimorph element 2525 and the normal microphone 223 are enabled, and the bone conduction microphone 6523 and the normal earphone 213 are disabled. The use in this state is common to the embodiments of the other mobile phones.

  The mobile phone 6601 of the embodiment 70 can be used by further separating the mobile phone upper part 6601b from the mobile phone lower part 6601a as shown in FIG. At this time, in the cellular phone upper part 6601b, the operation of the bone conduction microphone 6523 and the upper operation part 6609 are enabled together with the vibration of the piezoelectric bimorph element 2525. Also, in the lower part 6601a of the mobile phone, the normal earphone 213 is activated together with the normal microphone 223. The above-described switching between enabling and disabling in the bone conduction microphone 6523, the normal earphone 213, and the upper operation unit 6609 is performed by separating whether or not the mobile phone lower part 6601a and the mobile phone upper part 6601b are connected as described later. This is done automatically by determining whether In this manner, in the state shown in FIG. 103B, the mobile phone lower part 6601a functions as an independent normal mobile phone, and the mobile phone upper part 6601b functions as a wireless transmission / reception unit for the mobile phone lower part 6601a. .

  The use in the state of FIG. 103B as described above can be understood according to the embodiment 69 of FIG. That is, the separated mobile phone upper part 6601b functions as the incoming call vibrator of the mobile phone lower part 6601a in the same manner as the micro mobile phone 6501 of the embodiment 69, and secondly, the mobile phone lower part 6601a is, for example, a bag or the like. Third, the cartilage conduction call in the videophone in which the lower part of the mobile phone 6601a is separated from the face is enabled. At the time of cartilage conduction communication, the cartilage conduction part 6626 is brought into contact with otocartilage such as tragus, and the bone conduction microphone 6523 is applied to the cheekbone or mandible in the same manner as the microminiature cellular phone 6501 of the embodiment 69. use.

  As shown in FIG. 103B, a clip 6601c is provided in the upper part of the mobile phone 6601b so as to be inserted into a mouth of a pocket of clothes. When the clip 6601c is connected to the lower part 6601a of the mobile phone, it is housed in the storage recess 6601d and cannot be seen from the outside as shown in FIG. The mobile phone upper part 6601b is further provided with a pair of charging contacts 6648a, and in a connected state, makes contact with the sub charging contact 1448b of the mobile phone lower part 6601a. This is because, in the coupled state in FIG. 103A, when the lower part 6601a of the mobile phone is charged, the upper part 6601b of the mobile phone is charged through the contact between the sub charging contact 1448b and the charging contact 6648a. The contact and non-contact between the sub-charging contact 1448b and the charging contact 6648a are used to determine the connection and separation between the lower mobile phone 6601a and the upper mobile phone 6601b. The setting is automatically switched between enabling and disabling in the user operation unit 6609.

  FIG. 104 is a block diagram of embodiment 70, and the same parts are denoted by the same reference numerals as in FIG. FIG. 104 has many parts in common with the block diagram of the embodiment 69 in FIG. 102. Therefore, corresponding parts are denoted by the same reference numerals as those parts and description thereof is omitted.

  The first point of the mobile phone upper part 6601b in FIG. 104 different from the micro mobile phone 6501 in FIG. 102 is that the power supply unit 6648 is charged from the charging contact 6648a. The second point is that the upper operation unit 6609 is provided, and the receiving operation at the time of separation is transmitted to the control unit 6639 as described above. Note that the control unit 6639 determines whether the state is the contact state or the non-contact state based on the state of the charging contact 6648a. Even if the upper operation unit 6609 is operated in the state where the contact state is determined, the control unit 6639 does Not accepted as invalid. The third point is that the upper part 6601b of the mobile phone does not have a functioning function functioning independently, and is replaced by a transmitter / receiver 6645 for the upper part 6601b of the mobile phone. The fourth point is that the control unit 6639 invalidates the bone conduction microphone 6523 of the transmission / reception unit 6645 when the charging contact 6648a is in the contact state as described above.

  The first difference between the mobile phone lower part 6601a in FIG. 104 and the ordinary mobile phone 1601 in FIG. It is configured so that the power can be supplied to the charging contact 6648a of the upper part 6601b of the mobile phone via the contact 1448b. The second point is that the control unit 239 invalidates the normal earphone 213 of the telephone function unit 45 when it is determined that the sub charging contact 1448b is in the contact state.

  FIG. 105 is a perspective view and a cross-sectional view of Example 71 according to the embodiment of the present invention, which is configured as a mobile phone 6701. Since the mobile phone 6701 according to the seventy-first embodiment has many parts in common with the mobile phone 6601 according to the seventy-fourth embodiment in FIGS. 103 and 104, the common parts are denoted by the same reference numerals and description thereof will be omitted unless necessary.

  The main difference between the embodiment 71 and the embodiment 70 in FIG. 105 is that the mobile phone can be separated into an upper part and a lower part. Vibration is hardly transmitted to the lower part. This will be specifically described below with reference to FIG.

  As shown in FIG. 105A, the mobile phone 6701 according to the seventy-first embodiment includes a lower mobile phone 6701a and an upper mobile phone 6701b as in the seventy-first embodiment, and both can be separated. In the upper part of the mobile phone 6701b, a hard left ear cartilage conduction part 6726 is provided at the upper left corner of the mobile phone 6701, and holds the piezoelectric bimorph element 2525 in the horizontal and vertical directions inside thereof. Further, the upper part 6701b of the mobile phone is provided with a hard cartilage conduction part 6724 for the right ear at the upper right corner of the mobile phone 6701. The cartilage conduction part for left ear 6726 and the cartilage conduction part for right ear 6724 are integrally connected by a rigid connection part of the same material, and the vibration of the piezoelectric bimorph element 2525 received by the cartilage conduction part for left ear 6726 is applied to the right ear. It is also transmitted to the cartilage conduction part 6724 for cartilage. In this sense, the embodiment 71 is common to the embodiments 64 to 67 in FIGS. 96 to 99. Although not shown in FIG. 105 for the sake of simplicity, the connecting portions for connecting the cartilage conducting portion for left ear 6726 and the cartilage conducting portion for right ear 6724 include the connecting portions 6027, 6127, 6227 and FIGS. The structure in 6327 or a structure similar thereto can be appropriately adopted. The mobile phone upper part 6701b of the embodiment 71 is not provided with the bone conduction microphone.

  In Embodiment 71, the elastic body 6765 is fixed to the upper end of the mobile phone lower part 6701a as shown in FIG. 105 (A), so that the vibration of the piezoelectric bimorph element 2525 of the mobile phone upper part 6701b is hardly transmitted to the mobile phone lower part 6701a. I have to. The significance of the elastic body 6765 is the same as the elastic bodies 6065, 6165, 6265 and 6365 in the embodiments 64 to 67 of FIGS. 96 to 99. In the case of Embodiment 71, it is possible to focus on the fact that one side of the coupling portion is an elastic body 6765, and to use the elasticity to form a surface fastener. For example, as shown in the partial cross-sectional view of FIG. 105 (B), a plurality of mushroom-shaped projections 6701c are provided on the coupling surface on the upper side of the mobile phone 6701b, and small holes 6765a are formed at corresponding positions on the opposing elastic body 6765 side. Are provided. The diameter of the hole 6765a is set to be smaller than the head portion of the mushroom-shaped protrusion 6701c and larger than the root portion. With such a configuration, if the mushroom-shaped protrusion 6701c is fitted into each of the holes 6765a against the elasticity of the elastic body 6765, the upper part 6701b of the mobile phone and the elastic body 6765 can be connected. The hook-and-loop fastener structure shown in FIG. 105B can also be used in principle for fixing the elastic body 6765 to the lower part 6701a of the mobile phone. However, in this case, the head of the mushroom-like projection to be provided on the upper surface of the lower portion 6701a of the mobile phone is not a smooth spherical shape as shown in FIG. 105 (B), but is, for example, a sharp triangular pyramid. A so-called "fitting and killing" structure that does not come off.

  FIG. 105C illustrates a state in which the mobile phone upper portion 6701b is separated from the mobile phone lower portion 6701a. As is apparent from the figure, the sub charging contact 1448b is provided on the surface of the elastic body 6765. Note that in FIG. 105C, illustration of the mushroom-like projections 6701c and the holes 6765a illustrated in FIG. 105B is omitted to avoid complexity. In Embodiment 71, when the upper part of the mobile phone 6701b is separated, the reception is performed by contacting either the cartilage conduction part 6724 for the right ear or the cartilage conduction part 6726 for the left ear with the ear cartilage. As in the case of the connection state of FIG. 9A, the ordinary microphone 223 of the lower part 6701a of the mobile phone is used. During a videophone call, the normal microphone 223 is used in the videophone mode. Since the cartilage conduction part 6724 for the right ear and the cartilage conduction part 6726 for the left ear are not for the right ear or the left ear, the cartilage conduction part can be arbitrarily contacted with the ear cartilage. Alternatively, instead of using either one of the cartilage conduction parts, both may be used and brought into contact with two places of the ear cartilage.

  FIG. 106 is a block diagram of embodiment 71, and the same parts are denoted by the same reference numerals as in FIG. The block diagram of FIG. 106 has many parts in common with the block diagram of the embodiment 70 in FIG. 104. Corresponding parts are denoted by the same reference numerals as those parts, and description thereof is omitted. FIG. 106 differs from FIG. 104 in that the transmission processing unit and the bone conduction microphone are omitted.

  Various features shown in each embodiment of the present invention are not necessarily unique to each embodiment, and the features of each embodiment may be appropriately modified and utilized as long as the advantages can be utilized. , And can be used in combination. For example, the bone conduction microphones described in Embodiments 69 to 71 may be configured as ordinary microphones that pick up air conduction sounds. Further, in the embodiment 70, the bone conduction microphone may be omitted as in the embodiment 71. Conversely, a bone conduction microphone can be employed in the seventy-first embodiment. In this case, it is preferable to arrange a bone conduction microphone in the center of the upper part 6701b of the mobile phone sandwiched between the right cartilage conduction part 6724 and the left cartilage conduction part 6726. In this case, since the cartilage conduction part and the bone conduction microphone are close to each other, the bone conduction microphone is applied to the bone behind the ear. It is also possible to use it in such a way that it hits the back of the device.

  In addition, the cartilage conduction part in each of Embodiments 69 to 71 is constituted by a piezoelectric bimorph element as a cartilage conduction vibration source. However, the present invention is not limited to this. It may be adopted as a vibration source. In the embodiment 70, the cartilage conduction vibration source is supported on one of the upper corners of the mobile phone and the bone conduction microphone is arranged on the other. However, the right and left ears are provided on both upper corners of the mobile phone, respectively. When a cartilage conduction vibration source is provided, it is preferable that the bone conduction microphone is disposed at the upper center of the mobile phone sandwiched between the pair of cartilage conduction vibration sources.

  Further, the charging means from the lower part of the mobile phone to the upper part of the mobile phone in the embodiment 70 or the embodiment 71 is not limited to the one using the electric contact as shown in the embodiment, but may be, for example, the one using the electromagnetic induction type non-contact charging. You may comprise.

  In Embodiment 71, the elastic body 6765 is fixed to the lower part 6701a of the mobile phone, and the upper part 6701b of the mobile phone is detachable from the elastic body 6765. However, the present invention is not limited to this embodiment. For example, contrary to the embodiment 71, the elastic body 6765 may be fixed to the upper part 6701b of the mobile phone, and the lower part 6701a of the mobile phone may be detachable from the elastic body 6765.

  FIG. 107 is a block diagram related to Example 72 according to the embodiment of the present invention, which is configured as a mobile phone 6801. In the embodiment 72, as in the embodiment 57 of FIG. 87, the driving circuit of the piezoelectric bimorph element 5325 serving as the cartilage conduction vibration source is provided with a one-chip integrated It is configured as a management IC 5303. Since the block diagram of FIG. 107 has many portions in common with the block diagram of FIG. 87, the same portions are denoted by the same reference numerals and description thereof will be omitted. The mobile phone 6801 according to the seventy-second embodiment is different from the seventy-fourth and seventy-first embodiments in that the cartilage conduction part is not separable. For example, as in the sixty-fifth embodiment in FIG. A cartilage conduction vibration source 2525 such as a piezoelectric bimorph is fixed to the mobile phone body. Therefore, during a videophone call, the cartilage conduction part is separated from the ear, and an air conduction sound is emitted from the videophone speaker 5351 instead.

  The embodiment 72 of FIG. 107 differs from the embodiment 57 of FIG. 87 in the configuration of the power supply control to the charge pump circuit 5354 and the control associated therewith. Specifically, the charge pump circuit 5354 is connected to the power management unit 5353 via the switch circuit 5354a, and the power is controlled by turning on and off the switch circuit 5354a by the control unit 5321. That is, power supply to the charge pump circuit 5354 is started by turning on the switch circuit 5354a in response to an incoming signal or a call signal, and is turned off by turning off the switch circuit 5354a in response to a call interruption operation. Stopped. Also, in conjunction with the turning off of the switch circuit 5354a, the pair of phase inversion clocks (3) supplied from the control unit 5321 to the charge pump 5354 are also stopped.

  Note that when the charge pump circuit 5354 is turned on and off, the voltage is not transiently stabilized, and as a result, a pop sound is generated from the piezoelectric bimorph element 5325. To prevent this, a mute circuit 5340a is inserted between the amplifier 5340 and the piezoelectric bimorph element 5325. Then, under the control of the control unit 5321, the mute circuit 5340a is turned on for a predetermined time before the charge pump circuit 5354 is turned on / off, so that the voltage fluctuation of the amplifier 5340 is not transmitted to the piezoelectric bimorph element 5325. The mute circuit 5340a is continuously turned on for a time slightly longer than the time required for stabilizing the charge pump circuit 5354, and is turned off and the mute is removed at a timing when the voltage stability is sufficiently expected. By turning on / off the mute circuit 5340a, generation of pop noise when the charge pump circuit 5354 is turned on / off is prevented, and the charge pump circuit 5354 is supplied with power without pop noise, so that the piezoelectric bimorph element 5325 can be driven. Become.

  FIG. 108 is a timing chart showing power supply control to the charge pump circuit 5354 in the working example 72. FIG. 108A is a timing chart in the case of receiving an incoming call. At a timing t1 when an incoming call is received from the standby state, the mute circuit 5340a is first turned on. In this way, at timing t2 when the piezoelectric bimorph 5325 is not affected by the voltage fluctuation of the amplifier 5340, the switch circuit 5354a is turned on, and the power supply from the power management circuit 5353 to the charge pump circuit 5354 is started. The supply of the phase inversion clock (3) from the control unit 5321 also starts. As conceptually shown by the hatched portion in FIG. 108A, the output voltage of the charge pump circuit 5354 is not stabilized in a transition period from the rise to a predetermined voltage. The mute circuit 5340a is turned on for a time period sufficiently covering the transition period, the mute state is continued, and the mute circuit 5340a is turned off at the timing t3 when the voltage stability is sufficiently expected, thereby removing the mute. As a result, the piezoelectric bimorph element 5325 is ready for cartilage conduction communication regardless of the reception operation. The reason why such an operation is performed when an incoming signal is received is to ensure that the piezoelectric bimorph element 5325 is in a driving state at the start of a call, even when a receiving operation is performed very quickly.

  Next, when a receiving operation is performed at an arbitrary timing t4, a call is started. Then, when the call interruption operation is performed at the timing t5, the mute circuit 5340a is first turned on in response to the operation. Then, at a timing t6 when the piezoelectric bimorph 5325 is not affected by the voltage fluctuation of the amplifier 5340, the switch circuit 5354a is turned off, and the power supply from the power management circuit 5353 to the charge pump circuit 5354 is cut off. The supply of the phase inverted clock (3) from the 5321 also stops. As conceptually shown by the hatched portion in FIG. 108A, the output voltage of the charge pump circuit 5354 is not stable even in the transition period when the function is stopped. The mute circuit 5340a is continuously turned on during a time period sufficiently covering this transition period, and is turned off at a timing t7 when stable stop is expected. As a result, even when the charge pump circuit 5354 is turned off, generation of pop noise or the like from the piezoelectric bimorph element 5325 is prevented.

  FIG. 108 (B) is a timing chart for making a telephone call. At timing t1, selection of telephone directory data or manual input starts a destination input operation. At this point, since it is not known whether or not a call can be actually made, the power supply to the charge pump 5354 is suspended. When the call input operation is performed at an arbitrary time point t2 after the destination input operation is completed, the mute circuit 5340a is first turned on in response to this. Then, in the same manner as in FIG. 108A, the switch circuit 5354a is turned on at timing t3 when the piezoelectric bimorph 5325 is not affected by the voltage change of the amplifier 5340, and the power management circuit 5353 switches to the charge pump circuit 5354. The power supply to the power supply is started, and the supply of the phase inversion clock (3) from the control unit 5321 also starts. The mute circuit 5340a is turned off at the timing t4 when the voltage can be sufficiently stabilized, as in the case of FIG. Then, a call is started at timing t5 when the other party performs a receiving operation in response to the call. Since the time from the calling to the receiving party's receiving operation is sufficiently long, if the start processing of the charge pump circuit 5354 is started in response to the calling operation, as shown in FIG. It is expected that the piezoelectric bimorph element 5325 is in a driven state. Note that, even if the piezoelectric bimorph 5325 is driven by the calling operation, the call does not start unless the other party performs a receiving operation, but if the other party performs the receiving operation and then starts up the piezoelectric bimorph element 5325, it may not be in time. Therefore, the piezoelectric bimorph 5325 is driven without waiting for a call to be established.

  Next, when the call interruption operation is performed at the timing t6, the mute circuit 5340a is first turned on in response to this operation, as in FIG. 108A. Then, at timing t7 when the piezoelectric bimorph 5325 is not affected by the voltage fluctuation of the amplifier 5340, the switch circuit 5354a is turned off, the power supply from the power management circuit 5353 to the charge pump circuit 5354 is cut off, and the control unit is turned off. The supply of the phase inverted clock (3) from the 5321 also stops. As in FIG. 108A, the mute circuit 5340a is continuously turned on in a time period sufficiently covering the transition period when the function of the charge pump circuit 5354 is stopped, and is turned off at a timing t8 when stable stop is expected. As a result, as in the case of FIG. 108A, even when the charge pump circuit 5354 is off, generation of pop noise or the like from the piezoelectric bimorph element 5325 is prevented. Note that there is a case where the other party does not perform the receiving operation even if the calling operation is performed as described above. In this case, the blocking operation is performed without establishing the call. In this case, FIG. 108 (B) is understood assuming that there is no call state from t5 to t6 illustrated between the calling operation t2 and the blocking operation t6.

  FIG. 109 is a flowchart of the operation of the application processor 5339 in the embodiment 72 shown in FIGS. 107 and 108. Note that the flow of FIG. 109 mainly illustrates the function of power supply control to the charge pump circuit 5354, and thus extracts and illustrates operations mainly on related functions. Therefore, in the embodiment 72, there are also operations of the application processor 5339 which are not shown in the flow of FIG. 109, such as functions of a general mobile phone. The flow in FIG. 109 starts when the main power supply of the mobile phone 6801 is turned on. In step S302, the initial startup and the function check of each unit are performed, and the screen display on the display unit 5305 is started. Next, in step S304, the power supply to the charge pump circuit 5354 is turned off, and the process proceeds to step S306. As described above, the mobile phone 6801 according to the seventy-second embodiment starts up with the power supply to the charge pump circuit 5354 turned off.

  In step S306, it is checked whether there is an incoming call. If there is an incoming call, the process proceeds to step S308 to check whether it is an incoming videophone call. If it is not a videophone, the flow shifts to step S310 to instruct the mute circuit 5340a to start mute for a predetermined time. Next, the flow shifts to step S312, instructs to turn on the charge pump circuit 5354, and shifts to step S314. Steps S310 and S312 have been described as functions of application processor 5339 for ease of understanding. Actually, however, the sequence control of mute for a predetermined time and power-on to charge pump circuit 5354 is performed by integrated power management IC 5303. The control unit 5321 is configured to leave it. In this case, in step S310, the application processor 5339 simply instructs the control unit 5321 to turn on the charge pump circuit 5354, and the process proceeds to step S314.

  In step S314, it is checked whether a reception operation has been performed. If no operation has been detected, the process returns to step S306, and steps S306 to S312 are repeated as long as the incoming call continues. In this case, if the mute for the predetermined time and the power-on to the charge pump circuit 5354 have already been instructed, steps S310 and S312 are omitted. On the other hand, when a reception operation is detected in step S314, the process proceeds to a call process in step S328.

  On the other hand, if no incoming call is detected in step S306, the process proceeds to step S316. If an incoming videophone call is detected in step S308, the flow shifts to step S318, performs a videophone process, and shifts to step S316. The videophone processing in step S318 corresponds to the processing from the start of the videophone to the call and its interruption. Therefore, the process proceeds from step S318 to step S316 when the videophone call is interrupted. Note that the videophone process also includes a process of generating the voice of the other party during a call from the air conduction speaker. As described above, when a videophone call is detected, the piezoelectric bimorph element 5325 is used away from the ear cartilage, so that power is not supplied to the charge pump circuit 5354 from the beginning.

  In step S316, it is checked whether a destination input operation has been performed. If an input operation has been performed, the process proceeds to step S320 to check whether a call operation has been performed. If there is a call operation, the flow shifts to step S322 to check whether or not the call is a videophone call. If it is not a videophone, the flow shifts to step S324 to instruct the mute circuit 5340a to start mute for a predetermined time. Next, the flow shifts to step S326, instructs to turn on the charge pump circuit 5354, and shifts to step S328. Note that, similar to steps S310 and S312, the sequence control related to steps S324 and S326 is configured to be left to the control unit 5321 of the integrated power management IC 5303.

  On the other hand, when the destination input is not detected in step S316, or when the calling operation is not detected in step S320, the process proceeds to step S336. If an incoming videophone call is detected in step S322, the flow shifts to step S338 to perform a videophone process, and shifts to step S336. In the case of the videophone process in step S338, the process corresponds to the process of waiting for the receiving operation of the other party and the process from the start of the videophone based on the receiving operation to the call and the interruption thereof. Therefore, the process proceeds from step S338 to step S336 when the videophone call is interrupted or when the outgoing call is interrupted without the receiving operation of the other party. In the videophone processing in step S338, the voice of the other party during the call is generated from the air-conducting speaker, and power supply to the charge pump circuit 5354 is not performed from the beginning, as in step S318.

  In step S328, a call process based on the receiving operation in step S314 or the calling operation in step S320 is performed. More specifically, the call processing in step S328 means a function during a call if the processing is performed via step S314, and includes management of moving to step S330 at predetermined time intervals to check for the presence or absence of a blocking operation. In this manner, steps S328 and S330 are repeated as long as there is no interruption operation in step S330. On the other hand, the case where the calling operation is performed via the calling operation in step S320 means the function of waiting for the receiving operation of the other party and the function during the call after the receiving operation. In this case as well, the process shifts to step S330 at predetermined time intervals to check for the presence or absence of a shutoff operation. At this time, if the blocking operation is detected in step S330 without the other party performing the receiving process, in step S328, only the function of waiting for the receiving operation of the other party is consequently performed.

  If the shut-off operation is detected in step S330, the process proceeds to step S332 to instruct the mute circuit 5340a to start mute for a predetermined time. Next, the flow shifts to step S334, instructs the charge pump circuit 5354 to be turned off, and shifts to step S336. Note that, similarly to step S310 and step S312, the sequence control related to step S332 and step S334 is configured to be left to the control unit 5321 of the integrated power management IC 5303.

  In step S336, it is checked whether or not the main power supply has been turned off. If the main power supply has not been detected, the process returns to step S306, and the above-described series of flow is repeated until the main power supply is detected. If the main power supply is detected to be off, the flow is terminated.

  Various features shown in each embodiment of the present invention are not necessarily unique to each embodiment, and the features of each embodiment may be appropriately modified and utilized as long as the advantages can be utilized. , And can be used in combination. For example, Embodiment 72 employs a charge pump circuit as a booster circuit for driving a piezoelectric bimorph element, which is a suitable choice, but is not limited to this and may employ other booster circuits as appropriate. It does not hinder.

  FIG. 110 is a perspective view of Example 73 according to the embodiment of the present invention, which is configured as a mobile phone 6901. The embodiment 73 has many points in common with the embodiment 55 shown in FIG. 83, and the internal configuration and functions have many points in common with the embodiment 4 shown in FIG. 8 and FIG. The same reference numerals are given to the same parts as those of the embodiments, and the description is omitted.

  110 is different from Embodiment 55 or Embodiment 4 in that Embodiment 73 shown in FIG. 110 is different from Embodiment 55 or Embodiment 4 in that a videophone inner camera 6917 is located at the lower right corner of the mobile phone 6901 as shown in FIG. It is located near. In the embodiment 73, since the cartilage conduction portions 5124 and 5126 and the internal cartilage conduction vibration source for transmitting vibration to the cartilage conduction portions are arranged, the upper portion of the mobile phone 6901 has no space. For this reason, in Example 73, the inner camera 6917 for videophone is disposed near the lower right corner of the mobile phone 6901 opposite to the cartilage conduction parts 5124 and 5126 with the display screen 6905 therebetween.

  Further, in the embodiment 73, a display lamp 6965 composed of an LED or the like for notifying the arrival of a telephone call or an e-mail with light is provided. Then, by blinking the display lamp 6965 irregularly during the videophone call, the line of sight is directed to the inner camera 6917 for the videophone. As a result, the gaze of the face displayed on the display unit of the other party's videophone comes to the front. This point will be further described later. FIG. 110B is a rear perspective view of the mobile phone 6901 and shows the arrangement of the rear main camera 6955.

  The mobile phone 6901 of the embodiment 73 is used while being held horizontally so that the long side of the display screen 6905 is horizontal as shown in FIG. Since the inner camera 6917 for the videophone is located near the lower right corner of the mobile phone 6901 as viewed in FIG. 110A, when the camera is held sideways as shown in FIG. 110C, it comes to the upper right corner. As a result, the videophone inner camera 6917 captures the face of the user during the videophone at a natural angle from the upper right. Further, the videophone inner camera 6917 is arranged such that the direction perpendicular to the long side of the display screen 6905 is the vertical direction of the captured image as shown in FIG. 110C. Then, on the display screen 6905, the face of the other party is displayed when the other party also has the horizontally held videophone specification. The user's face is also displayed on the display screen of the mobile phone of the partner in the horizontal holding state, as in FIG. 110 (C). For images held vertically and horizontally, the holding posture is detected by the gravitational acceleration detection by the normal acceleration sensor 49, and the orientation of the image is automatically rotated by 90 degrees. Therefore, in the videophone mode, the image rotation function by the acceleration sensor 49 as described above is stopped. When the other party's mobile phone is not of the horizontal holding specification, the face of the user is displayed on the display unit of the other party's mobile phone as a portrait image in which the left and right sides of the screen are cut. Further, when the other party's mobile phone is not of the horizontal holding type, the long side direction of the display screen is the vertical direction of the image, so that the other party's face is displayed sideways as it is. Therefore, as will be described later, an image from a mobile phone that is not of the horizontal holding type is automatically displayed on the display screen 6905 in a state of being rotated 90 degrees. At this time, the face of the opponent is displayed in the center as a portrait image, so that the left and right of the display screen 6905 are empty spaces in which nothing is displayed. This free space can be used for data display. My voice in the videophone is picked up by the microphone 6923, and the voice of the other party is output from the speaker 6951.

  At this time, as described above, the display lamp 6965 blinks irregularly (for example, several sets of blinking in about 0.5 seconds each time are turned on irregularly in one minute). . Normally, a videophone call is performed while looking at the other person's face on the display screen 6905, which means that the line of sight is not directed to the videophone inner camera 6917. Therefore, the line of sight is not looking at the other party's screen. On the other hand, when the line of sight moves to the display lamp 6965 due to the above-mentioned irregular blinking, the line of sight is directed to the nearby videophone inner camera 6917, and the line of sight is directed to the partner's screen. The effect can be obtained.

  FIG. 110D shows a state where the display screen 6905 is divided, the face of the other party is displayed on the right screen 6905a, and the image captured by the rear main camera 6955 is displayed on the left screen 6905b. Then, the image displayed on the monitor is transmitted to the other party together with his / her face imaged by the inner camera 6917 for videophone. With this, it is possible to have a videophone conversation by sending the scenery and the like that one is looking at to the other party together with one's face.

  FIG. 111 is a perspective view showing various videophone modes in Embodiment 73 as described above. FIG. 111 (A) is the same as FIG. 110 (D), and displays the face of the other party on the right screen 6905a. In this mode, the image captured by the rear main camera 6955 displayed on the left screen 6905b is transmitted to the other party.

  On the other hand, FIG. 111B shows a mode in which the face of the other party is displayed on the right screen 6905a and the image transmitted from the other party is displayed on the left screen 6905b. The mode in FIG. 111A and the mode in FIG. 111B are switched by mutually operating the mobile phones in agreement with the other party during the call. The transmitted and received images can be not only moving images but also still images. When the amount of image data to be transmitted / received is large, while transmitting / receiving the image of the rear main camera 6955, the image data of each face is stopped so that the image transmission is performed in a time division manner.

  As described later, the image quality is reduced when transmitting the user's face and the scenery they are looking at. It is possible. In this case, even if the mobile phone does not support transmission and reception of images on two screens, the user can transmit his / her own face and the scenery he / she is looking at.

  FIG. 111C shows a state in which an image such as a landscape transmitted from the other party is displayed on the right screen 6905a, and an image of the rear main camera 6955 to be sent to the other party is displayed on the left screen 6905b. In this case, it is possible to make a videophone call while exchanging the scenery and the like with each other.

  FIG. 112 is a flowchart showing the videophone processing in Embodiment 73, which can be understood as the details of the videophone processing in Step S36 of Embodiment 4 shown in FIG. When the videophone processing is started, an advice display indicating that the mobile phone 6901 is to be used horizontally is displayed on the display screen 6905 in step S342. This display is continued for a while, but in parallel with this, the flow immediately proceeds to step S346, and the speaker 6901 is turned on. Then, in step S348, an advice announcement indicating that the mobile phone 6901 is to be used sideways is used. In parallel with the start of the announcement, the flow immediately proceeds to step S349, and the automatic image rotation function based on the attitude of the mobile phone 6901 detected by the acceleration sensor 49 is stopped. Next, the process proceeds to step S350, where it is checked whether the other party's mobile phone is compatible with the horizontal position. If not, the process proceeds to step S352, in which the display of the received image is rotated by 90 degrees so that the face of the other party appears to be erect when held sideways, and the process proceeds to step S354. If it is a horizontal support model, the process immediately proceeds to step S354.

  In step S354, the inside camera 6917 for videophone is turned on, and in step S356, the microphone 6923 is turned on. Then, in step S358, it is checked whether or not the “two-camera mode” is used, in which both the inner camera 6917 for videophone and the rear main camera 6955 are used. The mode can be manually set in advance, and can be changed during a videophone call. If it is not the "two camera mode", the rear main camera 6955 is turned off in step S360. If it was originally off, do nothing in this step. Next, the display screen 6905 is set to full-screen display, and an image transmission / reception process is performed in step S364. This processing is the same as that of a normal videophone, but performs processing for a unit time of the treatment.

  When the processing in step S364 is completed, the flow advances to step S368 to check whether or not the time to randomly light the display lamp 6965 has arrived based on simple random number processing or the like. If the lighting time has come, in step S370, one set of LEDs for instructing the user's attention and guiding the line of sight to the videophone inner camera 6917 is instructed, and the process proceeds to step S372. If the lighting time has not come, the process immediately proceeds to step S372. On the other hand, if it is detected in step S358 that the camera is in the "2-camera mode", the flow advances to step S374 to turn on the rear main camera 6955, and to the "2-camera mode" processing in step S376. Move to Details of the “two-camera mode” process in step S376 will be described later. In step S372, it is checked whether or not the videophone disconnection operation has been performed, and if not, the process returns to step S358. Hereinafter, steps S358 to S376 are repeated until the shutoff operation is performed. During this repetition, it is possible to cope with a mode change. On the other hand, when the shutoff operation is detected in step S372, the flow ends, and the flow shifts to step S38 in FIG.

  FIG. 113 shows details of the “two-camera mode” process in step S376 of FIG. 112. When the flow starts, it is checked whether or not the combined moving image mode is set in step S382. If so, the process advances to step S384 to combine the images of the videophone inner camera 6917 and the rear main camera 6955, and instructs transmission of the combined image in step S386. I do. Further, in step S388, full screen display is instructed, and in step S390, display of the received composite image is instructed, and the flow shifts to step S404. On the other hand, when the combined moving image mode is not detected in step S382, the process proceeds to step S392.

  In step S392, a two-screen display is instructed, and in step S394, image transmission by the videophone inner camera 6917 is instructed. Further, in step S396, an instruction to display the received image of the partner's face on the right display screen 6905a is issued, and the flow shifts to step S398. In step S398, it is checked whether the mode is for transmitting the image of the rear main camera 6955, and if applicable, in step S400, the image of the rear main camera 6955 is displayed on the left display screen 6905b on the monitor and transmitted to the other party's mobile phone. To instruct. Then, control goes to a step S404.

  On the other hand, if it is confirmed in step S398 that the mode is not the mode for transmitting the image of the rear main camera 6955, it means that the mode is for receiving the image of the other party. An instruction to display an image on the left display screen 6905b is issued, and the process proceeds to step S404. In step S404, it is checked whether or not the time to randomly light the display lamp 6965 has come. If the time has come, the blinking of the display lamp 6965 is instructed in step S406, and the flow shifts to step S408. If the lighting time has arrived, the process immediately proceeds to step S408. The purpose is the same as that in steps S368 and S370 in FIG.

  In step S408, it is checked whether the end change of the videophone in the "two-camera mode" has been performed, and if there is no operation, the process returns to step S382. Hereinafter, steps S382 to S408 are repeated until the end operation is performed. During this repetition, it is possible to cope with a mode change. On the other hand, when the end operation is detected in step S408, the flow ends, and the flow shifts to step S372 in FIG.

  The implementation of the present invention is not limited to the above-described embodiments, and various advantages of the present invention can be enjoyed in other embodiments. Further, these features can be used interchangeably or in various embodiments. For example, the flowcharts shown in FIG. 112 and FIG. 113 can be adopted for the videophone processing in steps S318 and S338 of the embodiment 72 shown in FIG.

  Note that the conventional videophone inner camera is arranged such that the direction parallel to the long side of the rectangular display screen 6905 is the vertical direction of the captured image, whereas the videophone inner camera in Embodiment 73 described above is used. Reference numeral 6917 is arranged so that the direction perpendicular to the long side of the display screen 6905 is the vertical direction of the captured image as shown in FIG. In Example 73, when a videophone is set, the automatic rotation function of the display image based on the acceleration sensor 49 is stopped in Step S349 of FIG. 112 to avoid confusion of the rotation of the display image based on this situation. Then, in steps S350 and S352, the display image is rotated by 90 degrees when the ordinary mobile phone is the other party's videophone. However, a measure for preventing confusion based on the arrangement in which the direction perpendicular to the long side of the display screen 6905 in the videophone inner camera 6917 is the vertical direction of the captured image is not limited to this. For example, utilizing the automatic rotation function of the display image based on the acceleration sensor 49, the direction of the display image by the automatic rotation function is determined based on the presence or absence of information indicating that the vertical direction of the inner camera 6917 for the videophone is shifted by 90 degrees from the normal. You may comprise so that it may correct 90 degrees. Further, the inner camera 6917 for the videophone is arranged so that the direction parallel to the long side of the rectangular display screen 6905 is the vertical direction of the captured image in the same manner as in the past, and the automatic It may be configured to always rotate 90 degrees by the rotation function.

  Further, when the vibration source of the cartilage conduction part 5124 is formed of a piezoelectric bimorph element in the embodiment 73, it can function as an impact sensor as described in the embodiment 4, so that the main camera image transmission mode during the videophone can be used. And the reception mode can be switched by detecting the impact of tapping the cartilage conduction part 5124 with the index finger or the like holding the mobile phone 6901 aside. Further, in the thirteenth and seventeenth embodiments, the cartilage conduction part functions as the incoming call vibrator, but in the same manner, the cartilage conduction part 5124 or 5126 of the seventy-third embodiment can also be used as the notification vibration part. It is. For example, by causing the cartilage conduction part 5124 or 5126 to vibrate in a predetermined manner every minute, the time elapse of the videophone can be transmitted to the hand holding the mobile phone 6901 horizontally.

  FIG. 114 is a block diagram related to Example 74 according to an embodiment of the present invention, and is configured as a cartilage conduction vibration source device for a mobile phone. The embodiment 74 is based on the measurement based on the measured data and the ear structure of the mobile phone studied in FIGS. 79 and 80, and the frequency characteristic correction unit (the cartilage conduction equalizer 5038 and the cartilage conduction equalizer 5038 and the embodiment 54 in FIG. It is based on the study of the cartilage conduction low-pass filter 5040) and the like. Also, in terms of the configuration, functions corresponding to the analog front end unit 5336, the cartilage conduction acoustic processing unit 5338, the charge pump circuit 5354, and the amplifier 5340 of the integrated power management IC 5303 in the embodiment 57 of FIG. 87 or the embodiment 72 of FIG. About. Therefore, since the details of the significance of the configuration can be understood with reference to these descriptions, duplicate description will be omitted.

  Embodiment 74 of FIG. 114 provides a cartilage conduction vibration source device which can be controlled by an application processor 7039 and a power management circuit 7053 in a normal mobile phone. Specifically, a piezoelectric bimorph as a cartilage conduction vibration source is provided. An element 7013 (shown together with a capacitor as an equivalent circuit) and its driver circuit 7003 are configured. The driver circuit 7003 is basically a drive amplifier for the piezoelectric bimorph element 7013, but has a built-in analog sound processing circuit 7038 as a frequency characteristic correction section, and outputs audio from a normal application processor 7039. , It is possible to drive the piezoelectric bimorph element 7013 with a suitable frequency characteristic as a cartilage conduction vibration source.

  More specifically, an analog audio signal output differentially from a speaker analog output unit 7039a of an application processor 7039 is input to an analog input amplifier 7036, and output from analog output amplifiers 7040a and 7040b via an analog sound processing circuit 7038. Then, the piezoelectric bimorph element 7013 is driven differentially. The driver circuit 7003 has a built-in booster circuit 7054 (specifically, a charge pump circuit) for the analog output amplifiers 7040a and 7040b, so that the output voltage of the normal power management circuit 7053 (2.7 to (5.5 V) as a power supply voltage from the power supply input portion 7054a.

  The analog acoustic processing circuit 7038 has the same function as the cartilage conduction equalizer 5038 and the cartilage conduction low-pass filter 5040 in the embodiment 54 of FIG. 82, and also functions as a start-up sequence circuit that automatically reduces click noise and pop noise. The correction of the frequency characteristics by the cartilage conduction equalizer 5038 and the cartilage conduction low-pass filter 5040 can be set uniformly or can be custom-set or adjusted according to the ear age and the like.

  FIG. 115 is a block diagram of Example 75 according to the embodiment of the present invention. Embodiment 75 is configured as a cartilage conduction vibration source device for a mobile phone in the same manner as in Embodiment 74, and has many common parts. The embodiment 74 of FIG. 114 is configured by an all-analog circuit, whereas the embodiment 75 of FIG. 115 is different in that the driver circuit 7103 employs a digital sound processing circuit 7138.

  However, the input and output of the driver circuit 7103 are analog as in Embodiment 74, and the input analog signal is converted to a digital signal by the DA converter 7138a and input to the digital audio processing circuit 7138, and the digital audio processing circuit 7138 The digital output of 7138 is converted to an analog signal by DA conversion circuit 7138b and transmitted to analog output amplifiers 7040a and 7040b. Note that the input to the driver circuit 7103 is not differential, and an analog audio signal from an analog output 7039b of the application processor 7039 is input. Whether the input is performed differentially is not a matter specific to the embodiments 74 and 75, and may be appropriately configured according to the circumstances of connection with the application processor 7039.

  FIG. 116 is a block diagram of Example 76 according to the embodiment of the present invention. Embodiment 76 is configured as a cartilage conduction vibration source device for a mobile phone in the same manner as Embodiments 74 and 75, and has many common parts. . Embodiment 76 of FIG. 116 differs from Embodiment 74 or 75 in that a digital audio signal from a digital output unit (I2S) 7039c of an application processor 7039 is input to a driver circuit 7203. Then, a digital audio signal from the application processor 7039 is directly input to the digital audio processing circuit 7138 similar to that in the embodiment 75 through the input unit 7236.

  The digital output from the digital sound processing circuit 7138 is converted into an analog signal by a DA converter circuit 7138c and transmitted to an analog output amplifier 7240a, and is inverted by the analog output amplifier 7240b to drive the piezoelectric bimorph element 7013 differentially. I do. It should be noted that whether the analog output of the DA conversion circuit 7138c is inverted by the analog output amplifier 7240b as in Embodiment 76 or whether two analog signals inverted by the DA conversion circuit 7138b itself are output as in Embodiment 75 An appropriate configuration can be selected instead of items specific to 75 and 76.

  FIG. 117 is a block diagram of Example 77 according to the embodiment of the present invention. The embodiment 77 is configured as a cartilage conduction vibration source device for a mobile phone in the same manner as the embodiments 74 to 76, and has many common parts. . The embodiment 77 in FIG. 117 differs from the embodiments 74 to 76 in that the driver circuit 7303 is configured by all digital. Accordingly, the digital audio signal from the digital output unit (I2S) 7039c of the application processor 7039 is directly input to the digital sound processing circuit 7138 at the input unit 7236, and the digital output from the digital sound processing circuit 7138 is supplied to the class D output amplifier 7340a. And 7340b.

  The vibration source module 7313 is provided in combination with a driver circuit 7303 that outputs a digital drive signal as in the embodiment 77, and is a low-pass for differential PWM signals output from the class D output amplifiers 7340a and 7340b. A filter (specifically, a coil for smoothing a PWM signal) 7313a is built in as a piezoelectric bimorph element module. Thus, even when the all-digital driver circuit 7303 is adopted, by providing this in combination with the vibration source module 7313, it is possible to reduce the burden of attaching a smoothing coil or the like having appropriate characteristics to an ordinary portable circuit. A cartilage conduction vibration source device controllable by the application processor 7039 and the power management circuit 7053 in the telephone can be provided.

  In Embodiment 44 of FIG. 67, a structure is shown in which the piezoelectric bimorph element and the circuit are resin-packaged, integrated as a vibration unit, and held, but the coil 7313a of Embodiment 77 in FIG. This can be considered as the simplest example of a circuit in which the piezoelectric bimorph element and the resin package are integrated with each other in the forty-fourth embodiment. Therefore, as for the vibration source module 7313 of the embodiment 77, the shape and the holding structure studied in the embodiment 44 of FIG. 67 can be adopted.

  As described above, the embodiments 74 to 77 can be implemented without the knowledge and information of cartilage conduction, without the burden of adjustment and study for realizing good cartilage conduction, with the application processor 7039 and power A cartilage conduction vibration source device that can be controlled by the management circuit 7053 can be provided. The specific configuration for that purpose is not limited to the embodiments 74 to 77, and the combination of circuit components can be appropriately changed as long as the advantages can be enjoyed. The feature of the present invention is that not only a single driver circuit as in the embodiments 74 to 77 but also a large scale such as the integrated power management IC 5303 in the embodiment 57 in FIG. 87 or the embodiment 72 in FIG. It may be configured as a part of a circuit.

  FIG. 118 is a cross-sectional view of Example 78 according to the embodiment of the present invention, which is configured as a mobile phone 7401. FIG. 118A is a front cross-sectional view of the mobile phone 7401, and FIG. 118B is a side cross-sectional view of the mobile phone 7401 in a B2-B2 cross section in FIG. 118A. As shown in FIG. 118 (A), the configuration of the cartilage conduction parts 7424 and 7426 and the connection part 7427 in the embodiment 78, and the piezoelectric bimorph element 2525 that transmits vibration to the cartilage conduction part 7424 as a cartilage conduction vibration source is replaced with the cartilage conduction part 7424. The structure for cantilever holding is the same as the structure of the embodiment 65 shown in FIG. 97 (B). Therefore, description of the significance of these structures is omitted to avoid duplication. The feature of the embodiment 78 shown in FIG. 118 is that, similar to the embodiment 61 shown in FIG. The point is that the weight inside the 7401 is used. Details of other internal configurations of the mobile phone 7401 are the same as those of the embodiments described so far (for example, the embodiment 54 of FIG. 82 and the embodiment 72 of FIG. 107). Omitted.

  Hereinafter, the sound leakage suppressing structure in the embodiment 78 of FIG. 118 will be described. 97, the cartilage conduction parts 7424 and 7426 and the connecting part 7427 are integrally formed of a hard material. This hard material has a different acoustic impedance from the housing of the mobile phone 7401. Further, an elastic body 7465 serving as a vibration isolating material is interposed between the integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connecting part 7427 and the housing of the mobile phone 7401. Have been. With these structures, sound insulation between the integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427 and the housing of the mobile phone 7401 is achieved. Although the above structure is common to the embodiments described so far, it serves as a base of the sound leakage suppressing structure of the embodiment 78, and its significance is summarized again.

  The battery 7448 is held above and below by rigid battery holders (an upper holder 7406 and a lower holder 7416). In addition, the center of the battery 7448 is allowed to swell with the elapse of use time, so that it is not suppressed by a hard holder. The upper holder 7406 is provided with a plurality of pins 7408 for connecting the upper holder 7406 to the front and back surfaces of the mobile phone 7401 with a small cross-sectional area. On the other hand, a plurality of elastic bodies 7467 for holding the lower holder 7416 at a position separated from the plurality of pins 7408 on the front and back surfaces of the mobile phone 7401 in a vibration-isolated state are provided.

  As a result, as shown in FIG. 118B, the battery 7448 is mounted on the battery holder (the upper holder 7406 and the lower holder 7416) and housed in the front housing 7401a (the GUI display portion 7405 side), and the rear housing 7401b is mounted. When closed, the plurality of pins 7408 are sandwiched between the front housing 7401a and the rear housing 7401b and pressed against them, and the weight of the battery 7448 is reduced via the upper holder 7406 to the cartilage conduction part 7424 in the housing of the mobile phone 7401. Connected nearby. The small cross-sectional area connection by the pin 7408 is significant in that the weight connection position is specified and concentrated near the cartilage conduction part 7424 in the housing of the mobile phone 7401. By this weight connection, the vibration of the housing of the mobile phone 7401 near the cartilage conduction part 7424 corresponding to the entrance part of the vibration transmission is suppressed. This has the same effect as, for example, a mute attached to a stringed musical instrument piece corresponding to the entry part of a string vibration, and suppresses resonance of the entire housing of the mobile phone 7401.

  Note that the cartilage conduction portion 7424 is made of a material having a different acoustic impedance from that of the housing of the mobile phone 7401, and is isolated from the housing of the mobile phone 7401 by the elastic body 7465, so that the degree of freedom of vibration is ensured. Thus, the influence of vibration suppression due to the heavy connection of the battery 7448 is small, and good cartilage conduction can be obtained.

  On the other hand, the plurality of elastic bodies 7467 provided on the lower holder 7416 are also sandwiched between the front housing 7401a and the rear housing 7401b and pressed against them. The degree of freedom of the lower holder 7416 is large, and the weight connection is weak. Therefore, even when the lower holder 7416 is held by the plurality of elastic bodies 7467 in a portion separated from the plurality of pins 7408, the specific concentration of the weight connection position by the plurality of pins 7408 is not impaired.

  FIG. 119 is a sectional view of Example 79 according to the embodiment of the present invention, which is configured as a mobile phone 7501. Since the embodiment 79 has many portions common to the embodiment 78 in FIG. 118, the common portions are denoted by the same reference numerals and description thereof is omitted.

  Embodiment 79 is different from Embodiment 78 in that a plurality of pins 7408 are provided in the lower holder 7416 instead of the plurality of elastic bodies 7467. As a result, when the lower holder 7416 is sandwiched between the front housing 7401a and the rear housing 7401b, a small cross-sectional area connection by the pin 7408 occurs. In the case of Example 79, the weight connection positions of the batteries are dispersed, but the vibration suppression effect depends on the distance between the weight connection position and the cartilage conduction part 7424, so that the weight connection by the plurality of pins 7408 of the upper holder 7406 is still effective. It is. Therefore, in the case where priority is given to reducing the number of parts by making the structure of the upper holder 7406 and the lower holder 7416 common even if the effect of suppressing the vibration is slightly sacrificed, the configuration of the seventy-ninth embodiment can be adopted.

  FIG. 120 is a cross-sectional view of Example 80 according to the embodiment of the present invention, which is configured as a mobile phone 7601. Since the embodiment 80 has many portions common to the embodiment 78 in FIG. 118, the common portions are denoted by the same reference numerals and description thereof is omitted.

  Embodiment 80 is different from Embodiment 78 in that the elastic body 7465 between the integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connecting part 7427 and the housing of the mobile phone 7401 is omitted. If a sufficient vibration isolation effect can be obtained only by the difference in acoustic impedance between the integrally molded structure and the housing, vibration suppression of the housing by weight connection of the battery 7448 is less likely to be exerted on the integrated structure. Conduction can be ensured. Therefore, even if the cartilage conduction efficiency is slightly sacrificed, if the number of parts is reduced and priority is given to simplifying the connection structure between the integrally molded structure and the housing, the configuration of the embodiment 80 can be adopted. .

  FIG. 121 is a side sectional view of Example 81 according to the embodiment of the present invention and a modified example thereof, each of which is configured as a mobile phone. The embodiment 81 and its modification have many portions common to the embodiment 78 in FIG.

  The embodiment 81 and its modification are different from the embodiment 78 in that the weight used for suppressing the sound leakage is set to the internal frame structure of the mobile phone. Since the internal frame structure 7748a occupies most of the weight of the mobile phone, it is suitable for suppressing sound leakage.

  FIG. 121A is a side cross-sectional view relating to Example 81, which is configured as a mobile phone 7701a. Since the embodiment 81 has many portions common to the embodiment 78 in FIG. 118 as described above, the common portions are denoted by the same reference numerals and description thereof is omitted. The illustration of the front sectional view is omitted.

  In the embodiment 81 (A), the weight used for suppressing sound leakage as described above is the internal frame structure 7748a of the mobile phone 7701a. The internal frame structure 7748a holds the battery 7448 and other internal structures such as circuits, and occupies most of the weight of the mobile phone. Further, the inner frame structure 7748a is connected to the integral molding structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427 via the elastic body 7465, and forms the main skeleton structure of the mobile phone 7701b. Therefore, as in the embodiment 78 of FIG. 118, the internal frame structure 7748a suppresses the vibration of the housing forming the surface of the mobile phone 7701a in the vicinity of the cartilage conduction part 7424 by its weight.

  FIG. 121 (B) is a side sectional view of a first modification of Example 81 according to the embodiment of the present invention, and is configured as a mobile phone 7701b. The first modified example of FIG. 121B has many portions common to the embodiment 81 of FIG. 121A, and thus common portions are assigned the same numbers and description thereof is omitted.

  In the first modified example of FIG. 121 (B), similarly to the embodiment 81 of FIG. 121 (A), the inner frame structure 7748b is connected to the cartilage conduction parts 7424 and 7426 via the elastic body 7465 serving as a vibration isolating material. 7427 is connected to the integral molding structure. However, the housing of the mobile phone 7701b in the first modified example only functions as an exterior component covering the circumference of the mobile phone 7701b, and is directly connected to the integrally molded structure of the cartilage conduction parts 7424, 7426 and the connection part 7427. Instead, it is held by the internal frame structure 7748b via an elastic body 7765 serving as a vibration isolating material. For this reason, the portion near the cartilage conduction part 7424 in the inner frame structure 7748b is interposed between the integrally molded structure and the housing as an exterior integrated with the inner frame structure 7748b. In this manner, in the first modified example of FIG. 121B, the internal frame structure 7748b occupying most of the weight is connected to the integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427, and the housing is By holding the internal frame structure 7748b via the vibration isolating material 7765, vibration of the housing forming the outer surface of the mobile phone 7701b is suppressed.

  FIG. 121 (C) is a side sectional view of a second modification of Example 81 according to the embodiment of the present invention, and is configured as a mobile phone 7701c. The second modification of FIG. 121 (C) has many parts in common with the first modification of FIG. 121 (B).

  The second modified example of FIG. 121 (C) is different from the first modified example of FIG. 121 (B) in that the elasticity between the integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connecting part 7427 and the internal frame structure 7748c. The point is that the intervention of the body is omitted. In the case where vibration suppression is unlikely to affect the integral structure due to the difference in acoustic impedance between the integral molding structure and the internal frame structure 7748c, and good cartilage conduction can be ensured, such a direct connection can be simplified. It is possible to take the configuration which was done. In other words, if priority is given to reducing the number of parts and simplifying the connection structure between the integrally molded structure and the internal frame structure 7748c even at the expense of some cartilage conduction efficiency, the configuration of the second modification may be adopted. it can.

  As described above, the first modified example of FIG. 121B or the second modified example of FIG. 121C first occupies most of the weight in the integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427. The internal frame structure 7748b or 7748c is connected, where the transmission of vibration is suppressed. Then, a case having a small weight ratio is connected to the internal frame structure 7748b or 7748c via a vibration isolating material, so that the case forming the outer surface of the mobile phone 7701b or 7701c is suppressed from vibrating. .

  Each of the above embodiments can be variously modified as long as the advantages can be enjoyed. For example, in the embodiment 78 shown in FIG. 118, when the vibration isolating effect of the elastic body 7465 is high, the integrally molded structure of the cartilage conducting parts 7424 and 7426 and the connecting part 7427 is made of a material having the same acoustic impedance as the housing of the mobile phone 7401. (For example, a material common to both). When the vibration isolating effect of the elastic body 7465 is high, the acoustic impedance between the integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connecting part 7427 and the housing of the mobile phone 7401 is different due to the interposition of the elastic body 7465. This is because a state equivalent to the above can be realized, and good cartilage conduction can be obtained even when vibration of the housing is suppressed by the heavy connection of the battery 7448.

  Further, the implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, the structure of the second modified example of the embodiment 80 shown in FIG. 120 and the embodiment 81 shown in FIG. 121 (C) is not limited to the case where the cartilage conduction part is made of a hard material. It is also suitable for the case where the cartilage conduction part is an elastic body as in the modification shown in FIG. The elasticity of the cartilage conduction part of the elastic body differs greatly from the acoustic impedance of the housing. is there. Note that the cartilage conduction vibration source (piezoelectric bimorph element) 2525 is supported by the left and right cartilage conduction portions (elastic members 4263a and 4263b) as in Embodiment 46 and its modifications. Is applied, the upper holder 7406 is extended to the left ear cartilage conduction part (elastic body part 4263a) side, and the pin 7408 is arranged not only near the elastic body part 4263b but also near the elastic body part 4263a. To

  FIG. 122 is a block diagram related to Example 82 according to the embodiment of the present invention, and is configured as a cartilage conduction vibration source device for a mobile phone. Since the embodiment 82 has many portions common to the embodiment 76 of FIG. 116, the common portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. Embodiment 82 provides a cartilage conduction vibration source device which can be controlled by an application processor 7039 and a power management circuit 7053 in a normal mobile phone, similarly to the embodiment 76 of FIG. 116. The piezoelectric bimorph element 7013 as a cartilage conduction vibration source and its driver circuit 7503 are configured. The embodiment 82 of FIG. 122 differs from the embodiment 76 of FIG. 116 in the configuration of the digital sound processing circuit 7538 and the gain control in the analog output amplifier 7540.

  First, the configuration of the digital sound processing circuit 7538 will be described. Cartilage conduction can be defined as cartilage conduction in a broad sense and cartilage conduction in a narrow sense. In a broad sense, cartilage conduction is defined as the sound output from the cartilage conduction part, and cartilage air conduction (vibration transmitted from the cartilage conduction part to the ear cartilage turns into air conduction in the external auditory canal, which is transmitted to the inner ear via the eardrum. ), Cartilage conduction (a route in which vibration transmitted from the cartilage conduction part to the ear cartilage is directly transmitted to the inner ear via the bone) and direct air conduction (air conduction sound generated from the cartilage conduction part is directly transmitted to the eardrum without the cartilage) To reach the inner ear). In contrast, cartilage conduction in a narrow sense is defined as a sound transmitted to the inner ear via cartilage, and includes the above-described cartilage air conduction and cartilage bone conduction.

  The ratio of cartilage conduction to cartilage conduction in the narrow sense of cartilage conduction is less than one-tenth that of the former in normal subjects, and the contribution of cartilage conduction is extremely important. This is due to the extremely poor impedance matching from cartilage to bone. On the other hand, the rate of cartilage conduction is higher in hearing-impaired people with abnormalities in the external auditory meatus and middle ear than in normal subjects. This is because cartilage air conduction (and of course direct air conduction) is impaired.

  Next, regarding the contribution ratio of cartilage air conduction in a broad sense, since the contribution of cartilage conduction is small in a normal person as described above, the ratio of cartilage air conduction to direct air conduction may be substantially noted. Broadly speaking, the low-tone range is superior in cartilage air conduction, and the high-frequency range is direct air conduction dominant. The frequency components necessary for discrimination of some consonants such as "shi" are present in a high frequency band around 4000 Hz where direct air conduction is dominant. However, in a mobile phone, the frequency component of about 3000 Hz or more is cut off from the relationship between the amount of information and the fact that there is no problem in language identification during a conversation, so that cartilage air conduction is also important.

  Regarding cartilage conduction, as described above, the contribution of cartilage conduction in a broad sense is small in a normal person, but its frequency characteristics are considered to be almost flat from a low frequency region to a high frequency region. Incidentally, when the condition of closing the ear canal is changed from the closing condition to the opening condition, the sound pressure in the ear canal decreases in a low frequency band (eg, 500 Hz), but the loudness (sense of loudness of the sound) does not decrease as much as the sound pressure decreases. When the condition of opening the ear canal is changed from the opening condition to the closing condition, the sound pressure in the ear canal decreases in the high frequency band, but the loudness does not decrease as much as the sound pressure in the ear canal. This suggests the presence of cartilage conduction, which is very small in both the low and high frequency bands.

  The digital sound processing circuit 7538 shown in FIG. 122 takes into account the frequency characteristics of cartilage air conduction, cartilage conduction, and direct air conduction in the above-described cartilage conduction in a broad sense and the contribution thereof, and outputs the digital The audio signal is input to the cartilage conduction equalizer 7538a, the cartilage air conduction equalizer 7538b, and the direct air conduction equalizer 7538c, respectively, in the case of cartilage conduction only, in the case of cartilage air conduction only, and in the case of direct air conduction only, respectively. Perform optimal equalization. Note that the equalization here is not equalization for obtaining a sound close to a natural sound, but the transmission of the frequency characteristics of the piezoelectric bimorph element 7013 as a cartilage conduction vibration source and the transmission of cartilage bone, cartilage air conduction, and direct air conduction. Taking into account the frequency characteristics of the route, this refers to acoustic processing for transmitting speech most efficiently from the viewpoint of language discrimination. Therefore, a case where the voice quality is slightly changed from a natural voice quality within a range that does not impair the identity verification with priority given to the language discrimination power is included.

  The synthesizing unit 7538d in the digital sound processing circuit 7538 determines the mixing ratio of the output from the cartilage conduction equalizer 7538a, the cartilage air conduction equalizer 7538b, and the output from the direct air conduction equalizer 7538c according to the instruction from the application processor 7039, and changes the situation. Change this accordingly. The mixing ratio is initially determined for normal subjects based on the call when the cartilage conduction part is in contact with the ear cartilage without closing the ear canal entrance, and is changed when there is a change from this state. You. Specifically, for voices that do not involve communication, such as voice memo playback, the frequency of 3000 Hz or higher is not cut, so the contribution of the air-conducting equalizer 7538c is directly increased. Further, when the setting is made for a person with hearing impairment, an element that depends on bone conduction increases, and the contribution of the cartilage conduction equalizer 7538a is increased. Further, when the occurrence of the ear plug bone conduction effect is detected, the contribution of the direct air conduction equalizer 7538c is stopped because the entrance of the external auditory canal is closed and direct air conduction is lost. Details of these processes will be described later.

  Next, automatic gain adjustment of the analog output amplifier 7540 will be described. The piezoelectric bimorph element 7013 has a maximum oscillatable input rating, but if a signal exceeding this is output from the analog output amplifier 7540, the sound will be distorted and the cartilage conduction with desired frequency characteristics cannot be realized. On the other hand, when the maximum output from the analog output amplifier 7540 is less than the maximum input rating of the piezoelectric bimorph element 7013, cartilage conduction that makes full use of the capability of the piezoelectric bimorph element 7013 cannot be realized. The gain control unit 7540a sequentially monitors the average output of the DA converter 7138c for a predetermined time width, and controls the gain control unit 7540b of the analog output amplifier 7540 so that the output level of the analog output amplifier 7540 becomes the maximum input rated level of the piezoelectric bimorph element 7013. Control. Thus, the ability of the piezoelectric bimorph element 7013 can be fully utilized to realize cartilage conduction at a desired frequency characteristic.

  FIG. 123 is a flowchart showing functions of the application processor 7039 in the embodiment 82 of FIG. In order to explain the function of the driver circuit 7503, the flow of FIG. 123 extracts and illustrates the operation focusing on the related function, and the flow of FIG. 123 shows the function of a general mobile phone and the like. There is no application processor 7039 operation. The flow in FIG. 123 starts when the main power supply of the mobile phone is turned on. In step S412, initial startup and function check of each unit are performed, and screen display on the display unit of the mobile phone is started. Next, in step S414, the functions of the cartilage conduction unit and the transmitting unit of the mobile phone are turned off, and the process proceeds to step S416. As for turning off the cartilage conduction part, the power supply from the power management circuit 7053 in FIG. 122 to the driver circuit 7503 is turned off.

  In step S416, it is checked whether a reproduction operation of a voice memo recorded in advance has been performed. If the voice memo reproduction operation is not detected, the process proceeds to step S418, and it is checked whether or not a call is being made by a portable radio wave based on a response from the other party to the call or an incoming call from the other party. If it is in a call state, the process proceeds to step S420, where the cartilage conduction unit and the transmitting unit are turned on, and the process proceeds to step S422.

  In step S422, it is checked whether or not the setting for the person with hearing impairment has been performed. If the setting has not been performed, the process proceeds to step S424. In step S424, it is checked whether or not the earplug bone conduction effect has occurred due to the closure of the ear canal entrance. The process moves to S428. The presence / absence of the self-voice waveform inversion signal has been described in steps S52 to S56 in the flow of FIG. In step S428, the contribution ratio of the output of each of the equalizers 7538a, 7538b, and 7538c is set to the optimum value for the call state of the normal person, and the flow shifts to step S430.

  On the other hand, when it is detected in step S424 that the earplug bone conduction effect is generated due to the closure of the ear canal entrance, the process proceeds to step S430 to add the self-voice waveform inversion signal and stop the contribution of the direct air conduction equalizer 7538c in step S432. The process moves to step S430. This is because, as already mentioned, direct air conduction is lost by closing the ear canal entrance. If it is detected in step S422 that the setting for the person with hearing loss has been performed, the process proceeds to step S434, in which the contribution of the cartilage conduction equalizer 7538a is increased, and the process proceeds to step S430.

  In step S430, it is checked whether or not the call is disconnected. If not, the process returns to step S422, and thereafter, steps S422 to S434 are repeated unless the call is disconnected. As a result, the contribution of the output of each of the equalizers 7538a, 7538b, and 7538c can be changed in response to changes in settings and situations during a call. On the other hand, if it is detected in step S430 that the call is disconnected, the process proceeds to step S436, in which the functions of the cartilage conduction unit and the transmitting unit of the mobile phone are turned off, and the process proceeds to step S438.

  On the other hand, when the voice memo reproducing operation is detected in step S416, the process shifts to step S440, and the contribution of the direct air conduction equalizer 7538c is increased. This is because, as described above, for voices that do not go through communication such as voice memo playback, 3000 Hz or more is not cut, and it is appropriate in terms of sound quality to directly increase the contribution of air conduction. Next, in step S442, the cartilage conduction part is turned on, and the flow shifts to step S444 to perform a voice memo reproduction process. When the voice memo reproduction process is completed, the flow shifts to step S446 to turn off the cartilage conduction part, and shifts to step S438. If no call state is detected in step S418, the process immediately proceeds to step S438.

  In step S438, it is checked whether or not the main power of the mobile phone is turned off. If the main power is not turned off, the process returns to step S416. Repeat according to. On the other hand, when the main power supply is detected to be off in step S438, the flow ends.

  FIG. 124 is a perspective view of Example 83 according to the embodiment of the present invention, which is configured as a notebook-type large-screen mobile device 7601 having a mobile phone function. FIG. 124A is a front view of a portable device 7601. The portable device 7601 includes a large-screen display portion 7605 also serving as a touch panel. The portable device 7601 further includes a cartilage conduction transmitting / receiving unit 7681 connected to the right side thereof by a universal joint 7603. The cartilage conduction transmitting / receiving section 7681 has a cartilage conduction section 7624 at an upper end and a microphone 7623 at an intermediate portion. The cartilage conduction transmission / reception unit 7681 has a structure in which the cartilage conduction unit 7624 can be pulled out as described later, but FIG. The state is shown.

  FIG. 124B shows a state in which the mobile phone function of the portable device 7601 is used. The cartilage conduction portion 7624 is pulled out as shown by an arrow 7681a, and the cartilage conduction portion is shown by an arrow 7681b. It can be seen that 7624 can be tilted forward. Since the cartilage conduction transmitting / receiving section 7681 is connected to the portable device 7601 by the universal joint 7603 as described above, the cartilage can be tilted in any direction, not limited to the front.

  With the above structure, for example, the portable device 7601 is placed on a desk, and the pulled-out cartilage conduction portion 7624 is hand-inserted into the ear cartilage by hand while viewing the content (newspaper, book, graphic, or the like) displayed on the large-screen display portion 7605. And make mobile phone calls. At this time, one's own voice can be picked up by the microphone 7623 coming near the mouth in such a call state. Further, the cartilage conduction part 7624 can be applied to the ear cartilage by appropriately adjusting the length and direction of the cartilage conduction transmission / reception unit 7681 while holding the portable device 7601 by hand, without being limited to such a posture. is there. The same applies when the portable device 7601 is placed on the knee, and the cartilage conduction portion 7624 is designed to have a sufficient draw-out length with a structure similar to the antenna so as to cope with such a case.

  In addition, even if a mobile phone is received while using the mobile device 7601 in the state of FIG. Furthermore, if the operation of pulling out the cartilage conduction transmitting / receiving section 7681 is linked with the operation of responding to the incoming call, the operation becomes one-touch, and the usability is further improved. Similarly, when the user wants to make a mobile phone call while using the portable device 7601 in the state shown in FIG. Just pull it out and hit it. At this time, if the operation of pulling out the cartilage conduction transmitting / receiving section 7681 is linked to the calling operation, the telephone can be run with one touch.

  Although the state shown in FIG. 124B is used in a posture in which a landscape screen is viewed, it may be used in a portrait state. For example, when the cartilage conduction transmission / reception unit 7681 is used in a vertically long state with the cartilage conduction transmission / reception unit 7681 side up, the cartilage conduction transmission / reception unit 7681 is used in a state of extending from the upper right corner of the vertical screen to reach the ear cartilage. In the above description, the cartilage conduction part 7624 is used to touch the right ear cartilage in both the landscape screen and the portrait screen. However, if the portable device 7601 is rotated, the posture of listening with the left ear can be easily achieved. For example, when the cartilage conduction transmission / reception unit 7681 is used in a vertically long state with the cartilage conduction transmission / reception unit 7681 side down, the cartilage conduction transmission / reception unit 7681 is used in a state of extending from the lower left corner of the portrait screen to reach the left ear cartilage. . Further, in the horizontal state in which the top and bottom are reversed in FIG. 124 (B), the cartilage conduction transmission / reception unit 7681 is used in a state of extending from the upper left corner of the horizontal screen to the left ear cartilage. In any case, the cartilage conduction portion 7624 is not separated from the portable device 7601 and is connected to the portable device 7601 by the expandable and contractable cartilage conduction transmission / reception portion 7681 and the universal joint 7603, so that the cartilage conduction portion 7624 can be used both in carrying and in use. It has an easy configuration.

  FIG. 125 is a perspective view showing a modification of the embodiment 83 of FIG. 124, and is configured as a notebook type large-screen portable device 7701 having a portable telephone function in the same manner as the embodiment 83. The modification of FIG. 125 differs from the embodiment 83 of FIG. 124 in that the large-screen display unit 7705 also serving as a touch panel is used in a vertically long state. This is the point that a receiver 7781 is provided. As a result, the cartilage conduction section 7624 is the lower end of the cartilage conduction transmission / reception section 7781. In the modification, the microphone 7723 is provided on the portable device 7701 main body side.

  With the above structure, the cartilage conduction portion 7724 can be pulled out downward as indicated by an arrow 7781a and can be pulled forward as indicated by an arrow 7781b. Since the cartilage conduction transmitting / receiving section 7781 is connected to the portable device 7701 by the universal joint 7703 in the same manner as in the embodiment 83 of FIG. 124, the pulling-up direction is not limited to the front, and can be raised in any direction. In the case of the modification shown in FIG. 125, when used in the illustrated vertically long state, the cartilage conduction transmitting / receiving unit 7781 is used in a state of extending from the upper right corner of the vertically long screen to reach the right ear cartilage. On the other hand, for example, when used in a landscape screen with the cartilage conduction transmission / reception unit 7781 side down, the cartilage conduction transmission / reception unit 7781 extends from the lower right corner of the landscape screen to reach the right ear cartilage. Will be used. In the modification shown in FIG. 125, the screen can be rotated appropriately as in the case of the embodiment 83 shown in FIG. 124, so that the portrait screen or the landscape screen can be easily applied to the left ear cartilage.

  In each of the embodiment 83 in FIG. 124 and the modification in FIG. 125, the cartilage conduction portion may be constituted by a piezoelectric bimorph element or may be constituted by an electromagnetic vibrator. Further, the structure of the embodiment 83 in FIG. 124 and its modification in FIG. 125 is not limited to the cartilage conduction method, and an earphone composed of a normal air conduction speaker may be attached to the position of the cartilage conduction part.

  The implementation of the present invention is not limited to the above-described embodiments, and various advantages of the present invention can be enjoyed in other embodiments. Further, these features can be used interchangeably or in various embodiments. For example, in the embodiment 82 shown in FIGS. 122 and 123, the cartilage conduction equalizer 7538a, the cartilage air conduction equalizer 7538b, and the direct air conduction equalizer 7538c are shown by hardware blocks, respectively. It can be realized by software of a processing circuit. Further, in the embodiment 82, the change of the equalization according to the condition is constituted by the change of the mixing ratio of the output of the three equalizers, but if the same output is obtained as the final output of the digital sound processing circuit 7538, Therefore, the equalization may be changed in a lump.

  FIG. 126 is a perspective view and a cross-sectional view of Example 84 according to the embodiment of the present invention, which are generally configured as a mobile phone 7801 and a cartilage conduction soft cover 7863 thereof. FIG. 126 (A) is a perspective view of a normal mobile phone 7801 of Embodiment 84 and a cartilage conduction soft cover 7863 put on the mobile phone 7801 when viewed from the front. The cartilage conduction soft cover 7863 protects the normal mobile phone 7801 due to its elasticity when the normal mobile phone 7801 is accidentally dropped, and has a cartilage conduction portion 7824 at the upper right corner as described later. The ordinary mobile phone 7801 is an ordinary smartphone type mobile phone, and has a microphone 23 and an earphone 213 including an air conduction speaker. In addition, an external earphone jack for an external earphone is provided at the upper left of the mobile phone 7801. On the other hand, the cartilage conduction soft cover 7863 is provided with an external earphone plug 7885, and a sound signal for vibrating the cartilage conduction part 7824 is derived from the external earphone plug 7885 inserted into the external earphone jack.

  To cover the normal mobile phone 7801 with the cartilage conduction soft cover 7863, first turn the cartilage conduction soft cover 7863 upside down, insert the external earphone plug 7885 into the external earphone jack, and then cover the entire normal mobile phone 7801 with the cartilage conduction soft cover. 7863. When an external earphone plug 7885 is externally inserted into the external earphone jack, the audio output from the earphone 213 is turned off, and an audio signal for vibrating the cartilage conduction part 7824 is output from the external earphone jack. Since the cartilage conduction soft cover 7863 is partly a cartilage conduction portion 7824, the cartilage conduction soft cover 7863 is made of an elastic material (silicone rubber, a mixture of silicone rubber and butadiene rubber, or a mixture of natural rubber and natural rubber) having an acoustic impedance similar to that of the ear cartilage. Rubber or a structure in which air bubbles are sealed in these rubbers).

  FIG. 126 (B) is a cross-sectional view in which the upper part of the cartilage conduction soft cover 7863 is cut along a plane perpendicular to the front and side surfaces along a cutting plane B1-B1 in FIG. 126 (A). As is clear from FIG. 126 (B), the upper right corner of the cartilage conduction soft cover 7863 is a cartilage conduction portion 7824, and an electromagnetic vibrator 7825 serving as a cartilage conduction vibration source is embedded inside. Above the cartilage conduction soft cover 7863, there are provided a conduction section driver 7840 for driving the electromagnetic vibrator 7825 and a replaceable power supply battery 7848 for supplying power thereto. The electromagnetic vibrator 7825 is provided with an external earphone plug 7885. The vibration is driven by the conduction section driver 7840 based on the audio signal input from the. Note that the vibration direction is a direction perpendicular to the large screen display portion 7805 (see FIG. 126A) of the ordinary mobile phone 7801 as indicated by an arrow 7825a.

  FIG. 126C is a cross-sectional view in which the normal mobile phone 7801 and the cartilage conduction soft cover 7863 are cut along a plane perpendicular to the front surface and the top surface along the B2-B2 cut surface illustrated in FIG. 126A or FIG. 126B. It is. As can be seen from FIG. 126 (C), by covering the normal mobile phone 7801 with the cartilage conduction soft cover 7863, the electromagnetic vibrator 7825 of the cartilage conduction vibration source is integrated with the normal mobile phone 7801, and the external earphone plug 7885 is used. Vibrates due to the supplied audio signal. Thus, by simply putting the cartilage conduction soft cover 7863 on the ordinary mobile phone 7801 without making any changes, the mobile phone can be transformed into a cartilage conduction type mobile phone similar to the embodiment 60 in FIG. 90, for example.

  In the embodiment 84 of FIG. 126, when the cartilage conduction soft cover 7863 is put on the ordinary mobile phone 7801 as described above, the cartilage conduction portion 7824 is formed only at the right corner in the figure. This state is suitable for a call in which the user normally holds the mobile phone 7801 with his right hand and listens with his right ear. In order to hold with the left hand and listen with the left ear, as described in the twelfth embodiment in FIG. Can face the left ear.

  FIG. 127 is a block diagram of embodiment 84 of FIG. In the block diagram, the ordinary mobile phone 7801 has many parts in common with the ordinary mobile phone 1601 in the embodiment 69 of FIG. 102, and thus the common parts are assigned the same numbers and their explanation is omitted. FIG. 127 differs from FIG. 102 in that illustration of the short-range communication unit 1446 is omitted in FIG. 127 and an external earphone jack 7846 is illustrated. However, this does not mean that the ordinary mobile phone 1601 in FIG. 102 is different from the ordinary mobile phone 7801 in FIG. 127, and the illustration is omitted as appropriate for the sake of explanation.

  As is clear from the block diagram of FIG. 127, when the cartilage conduction soft cover 7863 is put on the ordinary mobile phone 7801, the external earphone plug 7885 is inserted into the external earphone jack 7846 of the ordinary mobile phone 7801, and The conduction section driver 7840 drives the electromagnetic vibrator 7825 based on the audio signal output from the reception processing section 212 of the telephone 7801.

  FIG. 128 is a sectional view showing a modification of the embodiment 84 of FIG. 126 are denoted by the same reference numerals, description thereof will be omitted, and only different portions will be described. FIG. 128 (A) is a cross-sectional view of a state in which the upper part in a state where the cartilage conduction soft cover 7963 is put on the ordinary mobile phone 7801 is vertically divided and viewed from the front. As is clear from FIGS. 128 (A) and 128 (B), the cartilage conduction soft cover 7963 in the modified example is provided with a cavity 7963a, and the external earphone plug 7985 is arranged so as to be able to move freely in the cavity 7963a. ing. Therefore, the external earphone plug 7895 can be easily inserted into the external earphone jack 7846 of the normal mobile phone 7801 before the cartilage conduction soft cover 7963 is put on the normal mobile phone 7801. Then, after confirming that the external earphone plug 7895 is securely inserted into the external earphone jack 7846 of the normal mobile phone 7801, the cartilage conduction soft cover 7963 can be put on the normal mobile phone 7801.

  The modification of FIG. 128 differs from the embodiment 84 of FIG. 126 in that a cartilage conduction soft cover 7963 is provided with a relay external earphone jack 7946. Thus, in the case of listening to music even when the original external earphone jack 7846 of the normal mobile phone 7801 is closed, the normal external earphone or the like is inserted into the relay external earphone jack 7946 to continue the operation. Can be used. Note that the relay external earphone jack 7946 is provided with a switch 7946a. Normally, a sound signal from the external earphone plug 7895 is transmitted to the conduction unit driver 7840, and a normal external earphone or the like is inserted into the relay external earphone jack 7946. In this case, switching is performed so that the sound signal from the external earphone plug 7895 is output from the relay external earphone jack 7946.

  FIG. 129 is a block diagram of a modification of the embodiment 84 in FIG. The same parts as those in the embodiment 84 of FIG. 127 are denoted by the same reference numerals, and the description is omitted. Also, the same portions as those in FIG. 128 are denoted by the same reference numerals, and description thereof will be omitted unless necessary. As is clear from FIG. 129, the sound signal from the external earphone plug 7895 is branched by the switch 7946a. Normally, the sound signal from the external earphone plug 7985 is transmitted to the conduction unit driver 7840, and the relay external earphone jack By mechanically detecting that a normal external earphone or the like is inserted into the 7946, the sound signal from the external earphone plug 7895 is switched by a mechanical switch so as to be output from the relay external earphone jack 7946.

  FIG. 130 is a perspective view and a sectional view of Example 85 and a modified example thereof according to the embodiment of the present invention, which are configured as a mobile phone 8001 or 8001x. Since the embodiment 85 of FIG. 130 has many parts common to the embodiment 55 of FIG. 83, the common parts are denoted by the same reference numerals and description thereof is omitted. The embodiment 85 of FIG. 130 is different from the embodiment 55 of FIG. 83 in that the cartilage conduction part 5124 is provided only on the right side in the drawing and the configuration of the microphone 8023 or 8123 associated therewith.

  As is clear from FIG. 130 (A) and FIG. 130 (B) showing the B1-B1 cross section thereof, in Example 85, the cartilage conduction part 5124 is provided only on one side. Therefore, as in the twelfth embodiment of FIG. 22, the thirty-sixth embodiment of FIG. 56, and the eighty-fourth embodiment of FIG. The cartilage conduction part 5124 is brought into contact with the left ear and used by switching. Accordingly, the user's mouth also comes to the front side or the back side of the mobile phone 8001.

  A microphone 8023 is provided at the lower part on the right side of the mobile phone 8001 as apparent from FIG. The microphone 8023 is configured such that the directivity 8023a for picking up sound from the front side and the directivity 8023b for picking up sound from the back side are symmetrical, so that voices from the front and back can be evenly picked up. With this, even when the right ear is applied to the cartilage conduction part 5124 so that the front side of the mobile phone 8001 faces the face and the call is made, the left ear is applied to the cartilage conduction part 5124 so that the back side of the mobile phone 8001 faces the face. Even when making a call, the user's voice can be picked up evenly.

  FIG. 130 (C) is a modification of the embodiment 85, and shows a state where the mobile phone 8001x is viewed from the lower surface side. The modification of the embodiment 85 is the same as the embodiment 85 except that the arrangement of the microphone 8123 is different. Therefore, only the lower surface is shown in FIG. As is clear from FIG. 130 (C), in the modification of the embodiment 85, the microphone 8123 is provided on the lower right side of the mobile phone 8001x. The microphone 8123 is configured such that the directivity 8123a for picking up sound from the front side and the directivity 8123b for picking up sound from the back side are symmetrical on the front and back sides, similarly to the embodiment 85. As a result, even in the modified example, the user's voice can be evenly picked up both when making a call from the front side of the mobile phone 8001x and when making a call from the back side. It goes without saying that the cartilage conduction part 5124 can be commonly used in any case.

  The implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, in the embodiment 84 of FIG. 126, the cartilage conduction portion is not provided on the left side of the drawing for the arrangement of the external earphone plug 7885, but the connection terminal of the audio signal such as the external earphone jack 7846 is not usually provided on the upper surface of the mobile phone 7801. Using the space on the upper surface, both left and right corners can be cartilage conduction parts. Although a separate power supply battery 7848 is provided for the operation of the conduction unit driver 7840, the power supply is usually omitted when the external output level from the mobile phone 7801 is sufficient to directly drive the cartilage conduction unit 7824. Is also possible. Even when the power supply is required for the operation of the conduction unit driver 7840, if the output terminal of the mobile phone 7801 is normally configured to be able to supply power together with the audio signal, it is not necessary to have the power supply battery 7848 separately. Absent. Furthermore, in Embodiment 84, the electromagnetic pendulum 7825 is employed as the cartilage conduction vibration source, but the present invention is not limited to this, and the operation of the conduction unit driver 7840 based on a separate power supply or power supply from a normal mobile phone 7801 is possible. As long as, the piezoelectric bimorph element as in the other embodiments may be adopted as the cartilage conduction vibration source.

  In Embodiment 84 of FIG. 126, the mobile phone assisting device that normally vibrates the cartilage conduction part based on the external voice output of the mobile phone is configured with a soft cover, but the present invention is not limited to this. is not. For example, according to the shape of the mobile phone and the arrangement of the external audio output terminals, the device may be configured as a rigid box-type cartilage conduction auxiliary device that fits into the upper portion of the mobile phone. In this case, if the external earphone jack is on the upper part of the mobile phone, the external earphone plug part inserted into the external earphone plug part can be used for positioning and supporting the fitted state of the cartilage conduction assisting device.

  In the embodiment 85 of FIG. 130, the possibility of picking up external noise increases depending on the setting of the directivity of the microphone 8023 or 8123. Is provided, this can be used to cancel external noise.

  FIG. 131 is a block diagram of Example 86 according to the embodiment of the present invention, which is configured as a mobile phone 8101. The block diagram of FIG. 131 relating to the embodiment 86 has many points in common with the block diagram of FIG. The embodiment 86 of FIG. 131 differs from the embodiment 54 of FIG. 82 in the configuration of the cartilage conduction equalizer 8138, the details of which will be described later. FIG. 131 shows an external earphone jack 8146 for connecting an earphone for listening to the sound of the reception processing unit 212, and a short-range wireless communication with a mobile phone auxiliary device such as a headset mounted on the head. A communication unit 8147 is shown.

  Next, the function of the cartilage conduction equalizer 8138 in the embodiment 86 of FIG. 131 will be described with reference to FIG. FIG. 132 (A) shows frequency characteristics of a piezoelectric bimorph element which is a cartilage conduction vibration source in the cartilage conduction vibration unit 228 used in Example 86. FIG. 132 (A) shows a result of measuring a vibration acceleration level at each frequency. It is an image figure. As apparent from FIG. 132 (A), the piezoelectric bimorph element vibrates strongly in a frequency band of 800 Hz or more, and shows a substantially flat frequency characteristic up to about 10 kHz although there are some irregularities.

  FIG. 132 (B) is an image diagram showing the results of measuring the vibration acceleration level of the ear cartilage at each frequency when the above-described piezoelectric bimorph element is brought into contact with the ear cartilage. As is clear from FIG. 132 (B), the ear cartilage exhibits a large vibration acceleration level comparable to the band of 1 to 2 kHz even in the band of 1 kHz or less where the vibration of the piezoelectric bimorph element as the vibration source is relatively weak. . This means that, in the frequency characteristics of the ear cartilage, transmission of vibration in a band of 1 kHz or less is good. Further, as is clear from FIG. 132 (B), the ear cartilage exhibits a decrease in the vibration acceleration level from around 3 kHz to a high frequency band even though the vibration of the piezoelectric bimorph element as the vibration source is substantially flat. ing. This means that in the frequency characteristics of the ear cartilage, the transmission efficiency of vibration decreases from around 3 kHz to a high frequency band.

  Considering a graph showing an example of the actual measurement data of the mobile phone according to the embodiment 46 shown in FIG. 79 based on the above results, for example, 300 Hz to 300 Hz due to the transition from the non-contact state shown by the solid line to the contact state shown by the dashed line The enhancement of the sound pressure in the 2500 Hz band is obtained by accumulating the air conduction sound via the cartilage conduction in the ear cartilage having the frequency characteristic shown in FIG. 132 (B) in addition to the air conduction sound in the non-contact state. I understand. Further, the difference between the non-contact state shown by the solid line and the contact state shown by the dashed line in the frequency band higher than 2500 Hz is smaller than the frequency of the ear cartilage shown in FIG. This corresponds to a decrease in the vibration acceleration level from to the high frequency band.

  Further, in FIG. 79, in the frequency band from about 1 kHz to over 2 kHz, the sound pressure in the non-contact state indicated by the solid line and the sound pressure in the open ear canal state indicated by the dashed line are almost in the same direction with respect to the frequency change. This indicates an increase / decrease trend. On the other hand, in FIG. 79, the sound pressure in the non-contact state indicated by the solid line and the sound pressure in the closed ear canal state indicated by the two-dot chain line show a tendency to increase and decrease in the opposite direction to the frequency change as a whole. This is because the direct air-conducting component, which had a large influence from around 1 kHz to over 2 kHz, disappears due to the closure of the ear canal entrance, and the effect of the frequency characteristics of the ear cartilage, which reduces the vibration transmission efficiency in the high frequency band, appears as it is. Means that. As described above, since the frequency characteristics of the sound pressure in the open ear canal and the frequency characteristics of the sound pressure in the closed ear canal differ depending on the frequency characteristics of the ear cartilage shown in FIG. 132B, the sound that can be heard when the ear canal is closed Sound quality changes.

  FIG. 132 (C) shows an image of the equalization of the drive output to the piezoelectric bimorph element for correcting the frequency characteristics of the ear cartilage shown in FIG. 132 (B), and the solid line shows the equalization in the ear canal open state. , Broken lines indicate equalization in the ear canal closed state. The equalization and the change between the gain indicated by the solid line and the gain indicated by the broken line are performed by the cartilage conduction equalizer 8138 controlled by the control unit 8139.

  As shown in FIG. 132 (C), in the outer ear conduction open state, the gain of the drive output is increased in a high frequency band from around 2500 Hz. This is to add a gain change in the opposite tendency to the frequency characteristic of the ear cartilage in FIG. 132 (B) to the frequency change. This is to correct the error.

  In a high-frequency band from about 2500 Hz, the influence of direct air conduction from the entrance of the ear canal is large, and the sound pressure due to cartilage conduction is relatively small. Therefore, if this can be ignored, the embodiment 86 may be modified so that the gain shown by the solid line in FIG.

  On the other hand, in the ear canal closed state shown by the broken line in FIG. 132 (C), the gain of the drive output in the high frequency band from around 2500 Hz as shown by the arrow is greatly increased from the solid line ear canal opened state. This corrects the frequency characteristics of the sound pressure in the closed ear canal where the influence of the frequency characteristics of the ear cartilage appears as it is, thereby preventing a change in sound quality when the ear canal is closed.

  As shown in FIG. 132 (B), the ear cartilage exhibits a decrease in the vibration acceleration level from around 3 kHz to a high frequency band. However, since the vibration itself is possible, the sound pressure is reduced by increasing the gain of the drive output in this frequency band. Can be improved. The degree to which the gain is increased is determined in consideration of the fact that the vibration acceleration level of the ear cartilage is low in this frequency band and the efficiency of increasing the sound pressure is low even when the drive output is increased. Further, the sampling period of the audio signal in the telephone is 8 kHz, and since there is no audio information originally at 4 kHz or more, as shown in FIG. Having this does not matter, and the main part of the frequency band of the audio signal can be transmitted efficiently. As described above, the sound quality of the audio signal can be improved by increasing the gain on the high frequency side in the frequency band of 4 kHz or less.

  The gain change between the solid line and the broken line in FIG. 132 (C) is automatically performed by the detection of the pressure sensor 242, for example, as in the fifty-fourth embodiment. Alternatively, a device such as the environmental noise microphone 4638 in the embodiment 50 may be provided, and automatic switching may be performed depending on whether or not the noise is higher than a predetermined value. In this case, if the noise is higher than a predetermined level, it is assumed that the user naturally increases the pressure of the ear cartilage to listen well and that the entrance of the ear canal is closed by the tragus, etc. Set from the average value by.

  Further, the gain change between the solid line and the broken line in FIG. 132 (C) is performed using a moving average value of the output of the pressure sensor or the output of the environmental noise microphone within a predetermined time, so that the change between the two is not complicated. desirable. However, when the ear canal is closed, the ear plug bone conduction effect (the phenomenon referred to in this specification is the same as what is known as the “ear canal closing effect”) increases the sound level and changes the sound quality. Since it is conspicuous, the change of the directional gain from the solid line to the dashed line in FIG. 132 (C) is performed promptly in response to the detection of the increase in the pressing force or the environmental noise. A hysteresis may be added to the gain change as a configuration in which the change in the decreasing direction is not performed until a predetermined number of changes are detected and the change is made relatively slowly.

  FIG. 133 is a flowchart illustrating functions of the control unit 8139 in the embodiment 86 of FIG. 131. In order to explain the control of the cartilage conduction equalizer 8138, the flow of FIG. 133 extracts and illustrates the operation focusing on related functions, and describes the functions of a general mobile phone in the flow of FIG. 133. There is an operation of the control unit 8139 that is not performed. Further, the control unit 8139 can achieve various functions shown in other various embodiments in combination, but illustration and description of these functions in FIG. 133 are omitted to avoid complication.

  The flow in FIG. 133 starts when the main power supply of the mobile phone 8101 is turned on. In step S452, an initial startup and a function check of each unit are performed, and a screen display on the display unit 205 of the mobile phone 8101 is started. Next, in step S454, the functions of the cartilage conduction unit (cartilage conduction vibration unit 228) and the transmission unit (transmission processing unit 222) of the mobile phone 8101 are turned off, and the process proceeds to step S456.

  In step S456, it is checked whether an earphone or the like is inserted into external earphone jack 8146. If the insertion into the external earphone jack 8146 is not detected, the process proceeds to step S458 to check whether the short-range communication unit 8147 has established short-range communication with a mobile phone auxiliary device such as a headset. If this is not the case, the process proceeds to step S460, and it is checked whether or not a call is being made by a portable radio wave based on a response from the other party to the call or a call from the other party. If it is in a talking state, the process proceeds to step S462, where the cartilage conduction unit (cartilage conduction vibration unit 228) and the transmission unit (transmission processing unit 222) are turned on, and the process proceeds to step S464.

  In step S464, it is checked whether or not an earplug bone conduction effect is caused by closing the entrance of the ear canal. If not, the process proceeds to step S466, and the step proceeds without adding a signal obtained by inverting the waveform of the own voice. The process moves to S468. The presence / absence of the self-voice waveform inversion signal has been described in steps S52 to S56 in the flow of FIG. In step S468, the equalization indicated by the solid line in FIG. 132 (C) is set, and the flow advances to step S470. The equalization in step S468 is to increase the gain of the drive output in a high-frequency band from around 2500 Hz, and is based on the premise that direct air conduction from the entrance of the ear canal greatly contributes. As described above, as a modified embodiment, the equalization in step S468 may be configured to be the same as the normal equalization for direct air conduction.

  On the other hand, when it is detected in step S464 that the earplug bone conduction effect has occurred due to the closing of the ear canal entrance, the process proceeds to step S470 to add a self-voice waveform inversion signal and to increase the drive output gain in the high frequency band from around 2500 Hz in step S472. The equalization to be increased is set, and the routine goes to Step S470.

  In step S470, it is checked whether or not the call is disconnected. If not, the process returns to step S464, and thereafter, steps S464 to S472 are repeated unless the call is disconnected. Accordingly, the equalization can be changed between the solid line and the broken line in FIG. On the other hand, if it is detected in step S470 that the call has been disconnected, the flow advances to step S474 to turn off the functions of the cartilage conduction unit (cartilage conduction vibration unit 228) and the transmission unit (transmission processing unit 212) of the mobile phone 8101. Then, the process shifts to step S476. If no call state is detected in step S460, the process directly proceeds to step S476.

  On the other hand, when insertion into the external earphone jack 8146 is detected in step S456, or when short-range communication establishment with the mobile phone auxiliary device is detected in step S458, the process proceeds to step S478. In step S478, it is checked whether or not a call is being made using portable radio waves in the same manner as in step S460. If it is in a call state, the flow advances to step S480 to set equalization for normal air conduction, and then to step S482.

  In step S482, it is checked whether or not the call has been disconnected. If not, the process returns to step S480. Thereafter, unless the call is disconnected, steps S480 and S482 are repeated. On the other hand, if it is detected in step S482 that the call has been disconnected, the flow shifts to step S476. If no call state is detected in step S478, the process directly proceeds to step S476.

  In step S476, it is checked whether or not the main power of the mobile phone 8101 has been turned off. If the main power has not been turned off, the process returns to step S456. Repeat according to circumstances. On the other hand, if main power off is detected in step S476, the flow ends.

  FIG. 134 is a perspective view showing a modification of the embodiment 86 shown in FIG. The description of FIG. 134 will be diverted from FIG. 110 (A) and FIG. 110 (B) of the embodiment 73 which are similar in appearance, and the common parts will be assigned the same reference numerals and description thereof will be omitted. FIG. 134A is a front perspective view of the mobile phone 8101, and FIG. 134B is a rear perspective view of the mobile phone 8101. In FIG. 134, unlike the embodiment 73, the inner camera 8117 is arranged above the mobile phone 8101.

  In a modification of the embodiment 86 in FIG. 134, in order to detect a state in which the ear canal is closed, a pressure sensing unit 8142 is provided on the back surface of the mobile phone 8101 as shown in FIG. 134 (B). When the user holds the mobile phone 8101 and touches the ear, the pressure sensing unit 8142 is arranged at a position where the index finger of the hand naturally hits. Then, when the user strongly touches the mobile phone 8101 to the ear to the extent that the ear canal is closed, the strength of the index finger touching the pressure sensing unit 8142 as a support increases. Thus, the closed state of the ear canal is detected based on the output of the pressure sensing unit 8142.

  Note that in order to avoid a malfunction, a pair of proximity sensors for detecting that the mobile phone 8101 is in contact with an ear for a call is provided above the mobile phone 8101 as illustrated in FIG. And a common infrared light proximity sensor 8121 that receives infrared reflected light from the ears. Accordingly, the pressure sensing unit 8142 functions only when the mobile phone 8101 is in contact with the ear. For example, even if a force is applied to the pressure sensing unit 8142 while the user is looking at the display screen 6905, the mobile phone 8101 can be used. The telephone 8101 does not respond.

  Note that the pressure sensing portion 8142 is not only a means for naturally detecting that the forefinger hits a predetermined strength or more, but also allows the user to consciously press the forefinger 8142a. Is provided. As described above, the pressure sensing unit 8142 can also function as a manual switch for switching the equalization.

  FIG. 135 is a block diagram of Example 87 according to the embodiment of the present invention, which is configured as a general mobile phone 1601 and a headset 8281 capable of short-range communication with the mobile phone. Since FIG. 135 has many configurations in common with the seventeenth embodiment of FIG. 29, the same portions are denoted by the same reference numerals as in FIG. 29, and description thereof will be omitted unless necessary.

  The embodiment 87 in FIG. 135 differs from the embodiment 17 in FIG. 29 in that the headset 8281 has a cartilage conduction equalizer 8238 controlled by the control unit 8239. The cartilage conduction equalizer 8238 has a function similar to that of the cartilage conduction equalizer 8138 of the embodiment 86 shown in FIG. 131. It is adopted as a vibration source of the vibration part 1626. Then, in order to cope with the frequency characteristics of the ear cartilage shown in FIG. 132 (B), it is configured to perform the equalization shown in FIG. 132 (C). Switching between the solid line and the broken line in FIG. 132 (C) is performed based on the detection of the bending detection unit 1588.

  In the embodiment 87 of FIG. 135, the mobile phone 1601 transmits an audio signal equalized on the assumption of normal air conduction from the short-range communication unit 1446 to the headset 8281. Since the headset 8281 is configured to have the cartilage conduction vibration unit 1626, the cartilage conduction equalizer 8238 performs the equalization shown in FIG. 132C based on the received audio signal.

  Here, returning to the embodiment 86, to supplement, when the insertion into the external earphone jack 8146 is detected in step S456 of the flowchart of FIG. 133, or in the step S458, the short-distance communication with the mobile phone auxiliary device is established. When it is detected, equalization for normal air conduction is performed in step S480. This corresponds to a normal air-conducting type earphone or headset, and also has a cartilage conduction equalizer 8238 in the headset itself as in the embodiment 87 in FIG. 135, even if it is a cartilage conduction type headset. This is because the combination with is assumed.

  FIG. 136 is a perspective view and a cross-sectional view of Example 88 according to the embodiment of the present invention, and are configured as a mobile phone 8201. The embodiment 88 is characterized mainly by the structure of the cartilage conduction part, and will be mainly described. The other parts are not shown and described because the configuration of the other embodiment can be appropriately adopted. FIG. 136 (A) is a front perspective view of Embodiment 88, and the housing of the mobile phone 8201 is configured so that a metal frame is sandwiched between a front plate 8201a made of plastic or the like and a back plate 8021b made of plastic. The metal frame is divided into an upper frame 8227, a right frame 8201c, a lower frame 8201d, and a left frame 8201e (not shown in FIG. 136 (A)), and an elastic body 8201f is interposed between them. I have. Note that a window for the large screen display portion 8205, a window for the microphone 8223, and a window for the inner camera 8017 are provided on the front plate 8201a.

  An electromagnetic vibrator 8225 serving as a cartilage conduction vibration source is fixed to the inner central portion of the upper frame 8227 so as to vibrate in a direction perpendicular to the front plate 8201a. Note that the electromagnetic vibrator 8225 is not substantially in contact with anything other than the upper frame 8227, and the vibration of the electromagnetic vibrator 8225 is transmitted only to the upper frame 8227. The vibration of the electromagnetic vibrator 8225 transmitted to the central portion of the upper frame 8227 is transmitted to the right and left corners 8224 and 8226 of the upper frame 8227 serving as a cartilage conduction part. Thus, in the embodiment 88, the metal upper frame 8227 is also used for cartilage conduction, and similarly to the other embodiments, the left and right upper corners (the right corner 8224 and the right corner 8224) of the housing of the mobile phone 8201. The left corner 8226) functions as a cartilage conduction part. However, in the embodiment 88, as in the embodiment 4 of FIG. 7, the upper frame 8227 does not vibrate only at the right end right corner 8224 and the left end left corner 8226 but vibrates as a whole. Audio information can be transmitted no matter where the inner upper edge of the mobile phone 8201 is brought into contact with the ear cartilage. The details will be described later.

  To be precise, regarding the configuration of the embodiment 88, when the inner upper edge of the mobile phone 8201 is brought into contact with the ear cartilage, the ear soft contact actually occurs near the upper edge of the front plate 8201a. That is, the vibration of the upper frame 8227 (including the right corner 8224 and the left corner 8226) is transmitted to the vicinity of the upper end side of the front plate 8201a, and transmitted to the ear cartilage. In addition, the vibration of the upper frame 8227 causes the upper edge of the front plate 8201a to vibrate in a relatively large area, so that a required air conduction sound is also generated from the upper edge of the front plate 8201a. In this respect, the embodiment 88 can be said to be common to the embodiment 10 of FIG. That is, the electromagnetic vibrator 8225 serves as a cartilage conduction vibration source and also serves as a drive source of a receiving unit that generates sound waves transmitted to the eardrum by normal air conduction. Therefore, in the same manner as in the other embodiments, the style in which the upper corner of the mobile phone 8201 is brought into contact with otocartilage such as an tragus can be used to make a call utilizing the advantage of cartilage conduction. It is also possible to make a call in a normal style where the user touches the ear. Furthermore, since the upper end side of the front plate 8201a vibrates in a relatively large area as described above, air-conducting sound of a required level for a normal mobile phone can be provided without providing an air-receiving unit such as a speaker. Can be generated. This will be described later in detail.

  Further, since the upper frame 8227 is separated from the right frame 8201c and the left frame 8201e by the elastic body 8201f, the transmission of the vibration to the lower portion of the housing is suppressed, and the cartilage is formed as in the other embodiments. Vibration energy of the electromagnetic vibrator 8225 serving as a conduction vibration source can be efficiently retained on the upper frame 8227. Since the upper frame 8227 is in contact with the front plate 8201a as described above, the upper frame 8227 vibrates in a relatively large area near the upper end side. However, the vibration of the lower portion of the front plate 8201a is suppressed by the right frame 8201c, the lower frame 8201d, and the left frame 8201e, whose transmission of the vibration is reduced by the interposition of the elastic body 8201f. The vibration decreases as it goes downward (where the large screen display portion 8205 is included) where generation is unnecessary.

  The upper frame 8227 also has the function of the antenna 5345 of the telephone function unit shown in the embodiment 57 of FIG. Specifically, the antenna 5345 includes a transmission antenna and a reception antenna, but in the embodiment 88 in FIG. 136, the upper frame 8227 serving as a cartilage conduction part also serves as a reception antenna.

  An external earphone jack 8246 as shown in Embodiment 84 of FIG. 127 is further fixed to the upper frame 8227. Thus, the external earphone jack 8246 can be provided on the upper frame 8227 with the simplest structure. In the above structure, when the upper frame 8227 vibrates, the external earphone jack 8246 also vibrates. When the external earphone plug is inserted into the external earphone jack 8246, the vibration of the upper frame 8227 is detected by detecting this. It is configured to stop. Therefore, in a state where cartilage conduction is transmitted to the ear cartilage, there is no problem because the external earphone plug is not inserted even if the external earphone jack 8246 vibrates, and the vibration of the upper frame 8227 is stopped when the external earphone plug is inserted. In this case, there is no problem. Note that when the upper frame 8227 vibrates also to the inner camera 8017, the vibration is transmitted via the front plate 8201a and the like and the internal structure. However, in a videophone state using the inner camera 8017, the vibration of the upper frame 8227 is stopped. In this case, there is no problem.

  A power switch 8209 is further arranged on the upper frame 8227. The power switch 8209 is arranged in a window provided in the upper frame 8227 so as not to contact the upper frame 8227 with a slight gap in a window provided in the upper frame 8227 so as to be able to slide up and down with respect to the upper frame 8227. Thus, when the upper frame 8227 vibrates, the vibration is not transmitted to the power switch 8209, and the inner edge of the vibrating window of the upper frame 8227 does not hit the power switch 8209 and does not vibrate.

  FIG. 136 (B) is a cross-sectional view taken along line B1-B1 of FIG. 136 (A), and the same portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. As is clear from FIG. 136 (B), an electromagnetic vibrator 8225 is fixed to the inner central portion of the upper frame 8227, and is connected to the driver circuit terminal by a flexible connection line 8225a. Further, as is clear from FIG. 136 (B), the electromagnetic vibrator 8225 is not substantially in contact with anything other than the upper frame 8227. Furthermore, since the elastic body 8201f is interposed between the upper frame 8227 and the right frame 8201c and the left frame 8201e, transmission of the vibration of the upper frame 8227 to the lower portion of the housing is suppressed. In this manner, the upper frame 8227 is preferably used also as a cartilage conduction part.

  As is clear from FIG. 136 (B), the upper frame 8227 is also used as a receiving antenna by being connected to an antenna terminal of a telephone function unit by a flexible connection line 8227a. An external earphone jack 8246 is fixed to the upper frame 8227, and is connected to an external output circuit terminal by a flexible connection line 8246a. Further, a window for arranging a power switch 8209 is provided in the upper frame 8227. The power switch 8209 provided in the waterproof power switch unit 8209a has a slight gap between the upper frame 8227 and the inner edge of the window. It is possible to move up and down without touching the 8227. The waterproof power switch unit 8209a is supported by the internal structure 8209b and connected to the control unit terminal by a wiring 8209c. Note that a waterproof packing is sandwiched between the waterproof power switch unit 8209a and the inner edge of the window of the upper frame 8227 to enable the upper frame 8227 to vibrate independently of the waterproof power switch unit 8209a. Waterproof between the two.

  FIG. 136 (C) is a top view of FIG. 136 (A), and the same portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. As is clear from FIG. 136 (C), the upper end of the front plate 8201a and the upper end of the back plate 8201b are configured to sandwich the upper frame 8227. Further, an external earphone jack 8246 and a power switch 8209 are exposed on the upper frame 8227.

  FIG. 136 (D) is a cross-sectional view taken along line B2-B2 shown in FIGS. 136 (A) to 136 (C), and the same portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. As is clear from FIG. 136 (D), the front plate 8201a and the back plate 8201b are configured to sandwich the upper frame 8227. In addition, an electromagnetic vibrator 8225 is fixed to a central portion inside the upper frame 8227. As is clear from FIG. 136 (D), the electromagnetic vibrator 8225 does not substantially contact with anything other than the upper frame 8227.

  FIG. 136 (E) is a cross-sectional view taken along line B3-B3 shown in FIG. 136 (B), and the same portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. As is clear from FIG. 136 (E), the front plate 8201a and the back plate 8201b are configured to sandwich the right corner 8224 at the end of the upper frame 8227. As is clear from FIG. 136 (E), an elastic body 8201f is interposed between the right corner 8224 at the end of the upper frame 8227 and the right frame 8201c. 8224) is suppressed from being transmitted to the lower part of the housing (including the right frame 8201c).

  FIG. 137 is a side view of the mobile phone 8201 for explaining the call situation in the embodiment 88 of FIG. 136. FIG. 137 (A) is substantially the same as FIG. 2 (A) shown in the first embodiment, and shows a state in which the mobile phone 8201 is held in the right hand and put on the right ear 28. Similar to FIG. 2, FIG. 137 (A) is a view from the right side of the face, and shows the back side of the mobile phone 8201 (the back side of FIG. 136 (A)). Note that, similarly to FIG. 2, in order to illustrate the relationship between the mobile phone 8201 and the right ear 28, the mobile phone 8201 is indicated by a dashed line.

  In the mobile phone 8201 of the embodiment 88, the entire upper frame 8227 vibrates, but in the call state of FIG. 137 (A), the right corner 8224 is set to the ear of the right ear 28 as in FIG. 2 (A). It is in contact with the vicinity of the bead, and realizes a call utilizing the advantage of cartilage conduction as in the other embodiments.

  On the other hand, FIG. 137B illustrates a state in which a call is performed in a normal style in which the vicinity of the center of the upper side of the mobile phone 8201 is touched to the ear. Even at this time, since the relatively long region 8227b in the center of the upper frame 8227 contacts the cartilage around the entrance of the ear canal, it is possible to communicate by cartilage conduction. Further, as described above, since the upper end portion of the mobile phone 8201 vibrates in a relatively large area, a required level of air conduction sound is normally generated in the mobile phone. Therefore, in the communication state as shown in FIG. 137 (B), it is possible to perform a communication by cartilage conduction from the central portion of the upper frame 8227 and air conduction sound coming from the entrance of the external auditory canal. Note that even in the call in the state of FIG. 137 (A), there is an air-conducted sound component coming from the entrance of the external auditory canal, but the ratio is larger in FIG. 137 (B).

  Also in the mobile phone 8201 of the embodiment 88, it is common to the other embodiments that the communication style of FIG. 137 (A) maximizes the advantage of cartilage conduction. However, even if the mobile phone 8201 of Embodiment 88 is used as shown in FIG. 137 (B) due to the user's preference or misunderstanding of the usage method, it can be used as a normal mobile phone without any problem. In addition, a required level of air-conducted sound can be generated without providing an air-conducting reception unit such as a speaker, and it can be provided on the market as a configuration that normally satisfies the standard of mobile phones.

  Although FIG. 137 describes the case of use with the right ear, the same applies to the case where the mobile phone 8201 is used with the left ear, and the left corner 8226 is brought into contact with the vicinity of the tragus of the left ear. Needless to say, it is possible to use and make a call in a normal style in which the vicinity of the center of the upper side of the mobile phone 8201 is touched to the ear.

  FIG. 138 is a sectional view showing a modification of the embodiment 88 of FIG. 136. Each modification relates to a configuration for more concentrating vibration energy near the upper edge of the front plate 8201a that actually contacts the ear cartilage when the inner upper edge of the mobile phone 8201 is applied to the ear cartilage. FIG. 138 (A) is exactly the same as FIG. 136 (E) and is shown again for reference. Accordingly, FIG. 138 (A) is a cross-sectional view taken along line B3-B3 in FIG. 136 (B). Each of the modifications is configured such that a portion near the upper end of the front plate 8201a and the back plate 8201b is thinner than the other portions, and the width and shape of the right corner 8224 are changed accordingly. In the modified example, the cross section near the upper end of the front plate 8201a and the back plate 8201b and the width of the upper surface of the upper frame 8227 are the same as the left corner 8226 and the right corner 8224 in the center.

  In FIG. 138 (B), the portion 8201g near the upper end of the front plate 8201a is made thinner than other portions, and the portion 8201h near the upper end of the back plate 8021b is also made thinner than the other portions. Correspondingly, the width of the right corner 8224a of the upper frame 8227 is wider than the right frame 8201i. Accordingly, the cross section of the elastic body 8201j is also trapezoidal so as to connect them. In this way, the upper portion 8201g of the front plate and the upper portion 8201h of the rear plate 8201b that are in contact with the vibrating upper frame 8227 are formed thinner than the other portions, so that these upper portions are more easily vibrated. Thus, the vibration of the upper frame 8227 is transmitted better. The difference in thickness between the front plate 8201a and the back plate 8201b makes these lower portions more difficult to vibrate.

  FIG. 138 (C) shows that the inside of the portion 8201k near the upper end of the front plate 8201a is made thinner as it goes upward in a tapered shape, and the thickness of the back plate 8021b is made thinner as the inside of the portion 8201m near the upper end goes up in a tapered shape. Configuration. Correspondingly, the right corner 8224b of the upper frame 8227 has a trapezoidal shape. Even in such a configuration, the upper end portion 8201k of the front plate 8201a and the upper end portion 8201m of the back plate 8201b that are in contact with the vibrating upper frame 8227 are more likely to vibrate, and the vibration of the upper frame 8227 is transmitted better. . Since the front plate 8201a and the back plate 8201b are thicker as they go down, their lower portions are less likely to vibrate.

  FIG. 138 (D) shows that the outer side of the upper end portion 8201n of the front plate 8201a is tapered thinner upward, and the rear plate 8021b is thinner as the outer side of the upper end portion 8201p is tapered upward. Configuration. Even in such a configuration, the portion 8201n near the upper end of the front plate 8201a and the portion 8201p near the upper end of the back plate 8201b that are in contact with the vibrating upper frame are more likely to vibrate, and the vibration of the upper frame 8227 is transmitted more effectively. Since the front plate 8201a and the back plate 8201b are thicker as they go down, their lower portions are less likely to vibrate.

  The implementation of the various features shown in each of the above embodiments is not limited to the above embodiments, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, in Example 88, the cartilage conduction vibration source was configured as an electromagnetic vibrator. The electromagnetic vibrator is suitable for a layout on the upper part of a mobile phone where members are crowded. However, the cartilage conduction vibration source employed in the embodiment 88 is not limited to the electromagnetic type, and may be, for example, a piezoelectric bimorph element as shown in another embodiment.

  FIG. 139 is a system configuration diagram of Example 89 according to the embodiment of the present invention. The embodiment 89 is configured as a headset which is a transmission / reception unit for a mobile phone, and forms a mobile phone system together with a normal mobile phone 1401. In the embodiment 89, similarly to the embodiment 24 of FIG. 37, the cartilage conduction part is arranged at a position where it hits the rear part (the mastoid side of the pinna attachment part) of the outer side 1828 of the cartilage at the base of the ear 28. The headset 8381 including the cartilage conduction unit can communicate with the ordinary mobile phone 1401 by the short-range communication unit 8387 such as Bluetooth (registered trademark). Therefore, the same parts as those in FIG. 37 are denoted by the same reference numerals, and description thereof is omitted. Also, the numbering of the mobile phone 1401 is omitted.

  FIG. 139 (A) is a side view showing the relationship between the headset 8381 and the ear 28 in the working example 89. As apparent from FIG. 139 (A), the headset 8381 of Example 89 includes an ear hook 8382 having a cartilage conduction part and a headset main body 8384, and the both are connected by a detachable cable 8381a. . The headset main body 8384 has a microphone 8323 and the like, and is clipped to a breast pocket or the like. In FIG. 139 (A), the ear 28 is shown by a solid line, and the ear hook portion 8382 which is hooked on the outer side 1828 of the base is shown by an imaginary line in order to avoid complexity and clarify the general relationship. The configuration is omitted.

  On the other hand, FIG. 139 (B) is a system configuration diagram in which the illustration of the ears other than the ear canal entrance (ear hole) 232 is omitted and the details of the headset 8381 of the embodiment 89 are shown together with the mobile phone 1401. 139 (A) are denoted by the same reference numerals. An ear hook 8382 whose cross section is shown in FIG. 139 (B) is made of an elastic material whose acoustic impedance is similar to that of the ear cartilage. . As is clear from FIG. 139 (B), the inner edge of the ear hook portion 8382 is a contact portion that linearly contacts the outer periphery 1828 of the base of the ear 28 so as to be wound therearound. Further, a holding portion 8325a made of a hard material is provided near a portion of the outer side 1828 of the cartilage at the base of the ear 28 closest to the ear canal entrance (ear hole) 232, and one end of the piezoelectric bimorph element 8325 is attached to the holding portion 8325a. It is supported.

  As apparent from FIG. 139 (B), the piezoelectric bimorph element 8325 does not come into contact with the inside of the ear hook part 8382 except for the support part 8325a, so that the other end side (connection terminal side) of the piezoelectric bimorph element 8325 vibrates freely. The reaction is transmitted to the support portion 8325a as vibration. The vibration of the support portion 8325a is transmitted from the inner edge of the ear hook portion 8382 to the outer side 1828 of the base of the ear 28 which is in line contact with the ear hook portion 8382, and this vibration is conducted from the inner wall of the external auditory canal through the cartilage around the mouth of the external auditory canal. Sound is generated and transmitted to the eardrum. The outer side 1828 of the cartilage at the base of the ear 28 is close to the inner ear canal entrance 232 and is suitable for generating air conduction from the cartilage around the ear canal to the inside of the ear canal.

  On the other hand, the headset main body 8384 has a short-range communication unit 8387 such as Bluetooth (registered trademark) that can communicate with the mobile phone 1401. Then, the audio signal of the radio wave 1285 from the mobile phone 1401 received by the short-range communication unit 8387 is sent from the audio unit 8386 to the amplifier 8340 via the audio processing circuit 8338. The amplifier 8340 drives the piezoelectric bimorph element 8325 from the connector 8346 via the cable 8381a. The audio signal picked up by the microphone 8323 is transmitted from the short-range communication unit 8387 to the mobile phone 1401 via the audio unit 8336 via a radio wave 1285. The control unit 8339 controls the short-range communication unit 8387, the sound processing unit 8338, and the audio unit 8336, and transmits an operation signal from the operation unit 8309 to the mobile phone 1401 from the short-range communication unit 8387. A power supply unit 8348 including a rechargeable battery supplies power to the entire headset 8381.

  In the above-described embodiment 89, the piezoelectric bimorph element 8325 for cartilage conduction is arranged on the ear hook 8382 and the microphone 8323 is arranged on the headset main body 8384. Is connected only by the flexible cable 8381a, so that the effect of the vibration of the piezoelectric bimorph element 8325 on the microphone 8323 is small. In the embodiment 89, since the vibration for cartilage conduction is transmitted from the back side of the ear 28, the ear canal entrance (ear hole) 232 is completely free, and an emergency sound such as a car horn enters the ear 28. There is no discomfort such as insertion of earphones into the ear canal entrance (ear hole) 232. In order to enhance the effect of cartilage conduction, the ear canal closing effect can be easily obtained by covering the ear 28 with the hand, and it is possible to increase the volume and block external noise.

  In FIG. 139, for simplicity, only one ear hook 8382 is shown for the right ear. However, it is also possible to provide a stereo receiving section by hanging the respective ear hanging sections on both ears. This makes it possible to increase the easiness of hearing during a normal call and to provide a configuration suitable for listening to music and the like.

  FIG. 140 is a system configuration diagram of Example 90 according to the embodiment of the present invention. The embodiment 90 is also configured as a headset which is a transmission / reception unit for a mobile phone, and forms a mobile phone system together with a normal mobile phone 1401. The embodiment 90 is similar to the embodiment 89 of FIG. 139, in that the cartilage conduction portion is disposed at a position where the cartilage conduction portion is behind the outer side 1828 of the cartilage at the base of the ear 28, and the headset 8481 including the cartilage conduction portion is provided. A short distance communication unit 8487 such as Bluetooth (registered trademark) can communicate with a normal mobile phone 1401. Therefore, the same parts as those in FIG. 139 are denoted by the same reference numerals, and description thereof will be omitted.

  FIG. 140 (A) is a side view showing the relationship between the headset 8481 and the ear 28 in the working example 90. The embodiment 90 is different from the embodiment 89 in FIG. 139 in that the headset 8481 is configured as an integral type, as is apparent from FIG. 140 (A). That is, in the embodiment 90, the microphone and other components are also arranged in the headset 8481. In FIG. 140 (A), as in the case of the embodiment 89, the ear 28 is shown by a solid line, and the ear hook portion 8482 hooked on the outer side 1828 of the base is shown by an imaginary line, and the internal configuration is omitted.

  On the other hand, in FIG. 140B, as in FIG. 139B, the illustration of the ears 28 except for the ear canal entrance (ear hole) 232 is omitted, and the details of the headset 8481 of the ninetieth embodiment are shown in the mobile phone 1401. This is the system configuration diagram shown together. The same parts as those in FIG. 140A are denoted by the same reference numerals. The headset 8481 shown in cross section in FIG. 140 (B) has an ear hook 8482 made of a hard material, the inner edge of which is in line contact with and wraps around the outer side 1828 of the base of the ear 28. It is a contact part. In the same manner as in Example 89, one end of the piezoelectric bimorph element 8425 is cantilevered to the holding portion 8482a closest to the external auditory canal entrance (ear hole) 232 on the outer side 1828 of the cartilage at the base of the ear 28.

  As apparent from FIG. 140 (B), also in the embodiment 90, the piezoelectric bimorph element 8425 does not come into contact with the inside of the ear hook part 8482 except for the support part 8482a. The terminal side) vibrates freely, and the reaction is transmitted to the support portion 8482a as vibration. Then, the vibration of the support portion 8482a is transmitted from the inner edge of the ear hook portion 8482 to the outer side 1828 of the base of the ear 28 which is in line contact with the cartilage in the same manner as in Example 89. The air-conducted sound is generated from the inner wall of the external auditory canal via the ear canal and transmitted to the eardrum.

  An upper portion of the ear hook portion 8482 is continuous with a rear portion 8484 made of the same hard material via a gap 8481b. The rear portion 8484 is provided with a short-range communication portion 8487 such as Bluetooth (registered trademark) that can communicate with the mobile phone 1401. As in the case of the eighteenth embodiment, an audio signal based on a radio wave 1285 from the mobile phone 1401 received by the short-range communication unit 8487 is transmitted from the audio unit 8436 to the amplifier 8440 via the audio processing circuit 8438. The amplifier 8440 drives the piezoelectric bimorph element 8425 by the cable 8481a because it passes through the connection from the rear part 8484 to the ear hook part 8482. Although not shown in FIG. 140B, Embodiment 90 also has the same control unit and operation unit as Embodiment 89.

  The microphone 8423 is provided at the distal end of an extension 8481c provided below the portion connected to the ear hook 8482 in the rear portion 8484, and is connected to the audio portion 8436. As a result, the audio signal picked up by the microphone 8423 is transmitted from the short-range communication unit 8487 to the mobile phone 1401 via the audio unit 8436 via the radio wave 1285.

  The battery 8485 of the power supply unit that supplies power to the entire headset 8481 is rechargeable, and is disposed at the rear portion 8484 so as to be interposed between the ear hook portion 8482 and the extension portion 8481c. In Embodiment 90, since the headset 8481 is integrally formed, the vibration of the piezoelectric bimorph element 8425 is transmitted from the ear hook portion 8482 to the rear portion 8484. However, by arranging the battery 8485 as described above, the vibration of the rear portion 8484 is suppressed on the way by the weight of the battery 8485, and the vibration component transmitted to the extension portion 8481c is reduced. Therefore, the effect of the vibration of the piezoelectric bimorph element 8425 on the microphone 8423 is reduced.

  FIG. 141 is a sectional view and a block diagram of Example 91 according to an embodiment of the present invention, which are configured as a stereo headphone system 8581. Since the embodiment 91 is based on the embodiment 63 of FIG. 95, the description of the common matters will be omitted as much as possible, and the explanation will focus on the added matters. FIG. 141 (A) is a cross-sectional view of the entire stereo headphone system 8581 similar to that of the embodiment 63. The stereo headphone system 8581 has a cartilage conduction portion 8524 for the right ear and a cartilage conduction portion 8526 for the left ear, and each has a conical convex shape. Then, the piezoelectric bimorph elements 8525a and 8525b are respectively attached such that their vibration surfaces are in contact with each other. FIG. 141A also shows a block diagram of a sound source section 8584 in the headphone system 8581 for further understanding of the entire system.

  The feature added in the embodiment 91 is that the through-holes 8524a and 8526a are respectively provided in the center of the cartilage conduction part 8524 for the right ear and the cartilage conduction part 8526 for the left ear, and the headphone system 8581 is mounted. This is also so configured that external air conduction sound can reach the eardrum from the entrance of the ear canal. Further, shutters 8558 and 8559 that are driven by shutter drive units 8557a and 8557b are provided, and an external auditory canal closing effect can be obtained by closing the through holes 8524a and 8526a as necessary. FIG. 141A illustrates a state in which the through holes 8524a and 8526a are open.

  The sound signal output from the sound processing circuit 8538 of the sound source unit 8584 drives the piezoelectric bimorph elements 8525a and 8525b via the stereo amplifier 8540, and the vibration is transmitted to the cartilage conduction unit 8524 for the right ear and the cartilage conduction unit 8526 for the left ear. Through the inner wall of the ear canal entrance to produce good cartilage conduction. The sound source unit 8584 is further provided with a shutter control unit 8539. When the noise detection unit 8538 detects external noise of a predetermined level or more, or when the hand operation unit 8509 is manually operated as necessary, a shutter driving unit 8539 is provided. A closing signal is sent to 8557a and 8557b, whereby shutters 8558 and 8559 slide to close through holes 8524a and 8526a, respectively. On the other hand, when the noise detection unit 8538 does not detect an external noise equal to or more than a predetermined value, or when the hand operation unit 8509 is manually operated again, an open signal is sent to the shutter drive units 8557a and 8557b, whereby the shutters 8558 and 8559 Slides to open the through holes 8524a and 8526a, respectively.

  FIGS. 141 (B) and 141 (C) are enlarged views of a main part of FIG. 141 (A), and show the opening and closing of the shutter. The same parts are given the same numbers. For simplicity, only the right ear cartilage conduction part 8524 is shown, but the same applies to the left ear cartilage conduction part 8526. FIG. 141 (B) is the same as FIG. 141 (A), and shows a state in which the through hole 8524a is open. On the other hand, in FIG. 141C, the shutter 8558 slides upward and the through hole 8524a is closed. Thus, in the state of FIG. 141 (B), external air-conducted sound can reach the eardrum from the external auditory meatus opening 30a while obtaining cartilage conduction. On the other hand, in the state of FIG. 141 (C), an effect of closing the ear canal in cartilage conduction can be obtained. According to the configuration of Embodiment 91 as described above, the external auditory canal closing effect can be obtained automatically or appropriately by hand operation without pushing the cartilage conduction part or closing the ear with the hand.

  The implementation of the various features shown in each of the above embodiments is not limited to the above embodiments, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, the advantage of the configuration of obtaining the ear canal closing effect by opening and closing the ear canal entrance by the shutter shown in Embodiment 91 is not limited to the case of cartilage conduction. That is, even when normal bone conduction occurs, the external auditory canal closing effect can be appropriately obtained automatically or by a hand operation without closing the ear with a hand.

  Although the piezoelectric bimorph element is used as the cartilage conduction vibration source in the embodiments 89 and 90, an electromagnetic vibrator can be used. In this case, it is preferable to dispose the electromagnetic vibrator in the vicinity of the portion closest to the ear canal entrance (ear hole) 232 on the outer side 1828 of the cartilage at the base of the ear 28 (the position corresponding to the holding portion 8325a in FIG. 139). .

  FIG. 142 is a system configuration diagram of Example 92 according to the embodiment of the present invention. The embodiment 92 is configured as a headset which is a transmission / reception unit for a mobile phone, and forms a mobile phone system together with a normal mobile phone 1401. Embodiment 92 is similar to Embodiment 90 of FIG. 140, in which the cartilage conduction portion is arranged at a position corresponding to the rear portion of the outer side 1828 of the cartilage at the base of the ear 28, and the headset 8681 including the cartilage conduction portion is provided. A short distance communication unit 8487 such as Bluetooth (registered trademark) can communicate with a normal mobile phone 1401. As described above, FIG. 142 has many parts in common with FIG.

  Embodiment 92 is different from Embodiment 90 in FIG. 140 in that a contact microphone 8623 for directly contacting the head of the user and sensing the vibration is used instead of the air-conducting microphone for voice pickup. That is the point. As shown in the side view of FIG. 142 (A), the contact microphone 8623 is arranged to be in contact with the mastoid located near the rear of the holding portion 8482a of the piezoelectric bimorph element. As a result, the output part of the sound signal due to cartilage conduction and the sound input part of the contact microphone 8623 are compactly housed in the space behind the pinna. Thus, even if a helmet or the like is worn from above, the headset 8681 does not become an obstacle.

  FIG. 142B is a system configuration diagram showing details of the headset 8681 together with the mobile phone 1401 in a manner similar to FIG. 140B. As is clear from FIG. 142 (B), in Example 92, as in Example 90, the battery 8485 is arranged so as to be interposed between the ear hook portion 8482 and the contact microphone 8623. Therefore, the vibration of the rear portion 8484 is suppressed in the middle by the weight of the battery 8485, and the vibration component of the piezoelectric bimorph element 8425 transmitted to the contact microphone 8624 is reduced.

  However, since the contact microphone 8624 directly detects the vibration, there is a possibility that the vibration of the rear portion 8484 transmitted from the piezoelectric bimorph element 8425 may be picked up even if the above measures are taken. To cope with this, as shown in FIG. 142B, the signal from the sound processing circuit 8438 is inverted in waveform by the inverting circuit 8640 and added to the canceller 8636. The audio signal picked up by the contact microphone 8623 is also transmitted to the audio unit 8436 via the canceller 8636, but the signal from the inversion circuit 8640 is added to the canceller 8636 and synthesized as described above, so that the contact microphone 8623 picks up the signal. The vibration component derived from the piezoelectric bimorph element 8425 is canceled, and only the audio signal component generated in the vocal cords is transmitted to the audio unit 8436.

  FIG. 143 is a side view of the ear 28 for showing a modification of the embodiment 92. In the modified example, the position of the contact microphone is changed. Therefore, in FIG. 143, the head configuration near the ears 28 is illustrated in detail to explain this, and illustration of the headset 8681 excluding the contact microphone is omitted to avoid complication. FIG. 143 (A) shows the embodiment 92 of FIG. 142 (A) for reference by the above-described method, and the contact microphone 8623 is arranged so as to be in contact with the vicinity of the mastoid 8623a.

  On the other hand, FIG. 143 (B) is a first modification of the embodiment 92, in which the contact microphone 8723 is arranged to be in contact with the vicinity of the mandible 8623b. The mandible 8623b vibrates well during vocalization because it is close to the vocal cords, and is suitable for placing the contact microphone 8723. However, the contact microphone 8723 is flexibly supported by the headset 8681 in order to follow this movement since it moves slightly in response to a change in the words to be spoken.

  FIG. 143 (C) shows a second modification of the embodiment 92, in which a contact microphone 8823 is arranged so as to be in contact with the vicinity of the mastoid side 8623c of the sternocleidomastoid muscle. Vibration of the vocal cords is well transmitted to the sternocleidomastoid muscle, and the mastoid side 8623c also vibrates well during vocalization. Therefore, this portion is also suitable for disposing the contact microphone 8823. However, since the mastoid side 8623c of the sternocleidomastoid muscle moves slightly in response to a change in the words spoken, the contact microphone 8823 is flexibly supported by the headset 8681 to follow this movement.

  FIG. 144 is a rear view and a block diagram of Example 93 according to the embodiment of the present invention. The embodiment 93 is configured as a headset 8981 which is a transmission / reception unit for a mobile phone, but is a headphone type capable of stereo listening. The embodiment 93 has many parts in common with the embodiment 92 of FIG. 142, and the corresponding parts are denoted by the same reference numerals and description thereof will be omitted. In Example 93, as in Example 92, the cartilage conduction part is arranged at a position corresponding to the outer rear part of the cartilage at the base of the ear, and a contact microphone is used for voice pickup.

  FIG. 144 (A) is a view of the headset 8981 of Example 93 attached to the head as viewed from behind. In order to avoid complication, the right ear 28 and the left ear 30 are represented by imaginary lines as the head. It is shown only. In the headset 8981, a right ear 8924 having a right piezoelectric bimorph element 8924a and the like and a left ear 8926 having a left piezoelectric bimorph element 8926a and the like are supported by a head arm 8981a. In the embodiment 93, for example, the components can be divided into a right ear 8924 and a left ear 8926 to make it possible to put on a helmet from above, thereby making the whole compact.

  More specifically, as is clear from FIG. 144 (A), a control circuit system such as a short-range communication unit 8487 is disposed in the left ear 8926, and supports the left piezoelectric bimorph element 8926a. The left piezoelectric bimorph element 8926a thus supported transmits cartilage conduction from the mastoid side of the pinna attachment portion. Further, a contact microphone 8923 is supported by a flexible structure with the left battery 8985a interposed therebetween, and comes into contact with the mandible. On the other hand, a power supply circuit system such as a power supply unit 8985 is disposed in the right ear 8924 and supports the right piezoelectric bimorph element 8924a. The right piezoelectric bimorph element 8924a transmits cartilage conduction from the mastoid side of the pinna attachment portion in the same manner as the left piezoelectric bimorph element 8926a. This allows stereo listening. The right ear 8924 further supports a right battery 8985b. The batteries that take up such a space are distributed to the right ear 8924 and the left ear 8926.

  FIG. 144 (B) is a block diagram showing details of the configuration of the embodiment 93, and portions common to the embodiment 92 of FIG. 142 (B) are denoted by the same reference numerals and description thereof is omitted. 144B, in Embodiment 93, the left piezoelectric bimorph element 8926a and the contact microphone 8923 are close to each other in the left ear 8926, so that the inverting circuit 8640 and the canceller 8636 are similar to Embodiment 92. To cancel the vibration component derived from the piezoelectric bimorph element 8926a picked up by the contact microphone 8923. On the other hand, in the right ear 8924, the power supply 8985 receives power from the right battery 8985b, and also receives power from the left battery 8985a via a connection line in the head arm 8981a. Then, based on the voltages and charging capacities of the right battery 8985b and the left battery 8985a, necessary boosting and the like are performed to supply power to the amplifier 8940b of the right ear 8924 and to connect the left ear via a connection line in the head arm 8981a. Power is also supplied to each of the 8926 components. Further, the acoustic processing circuit 8438 of the left ear 8926 transmits the left ear audio signal to the amplifier 8940a of the left ear 8926, and also transmits the right ear to the amplifier 8940b of the right ear 8924 via a connection line in the head arm 8981a. Transmits audio signals. In the embodiment 93, the component that the vibration of the right piezoelectric bimorph element 8924a transmits through the head arm 8981a and is picked up by the contact microphone 8923 is sufficiently small.

  FIG. 145 is a rear cross-sectional view and a block diagram of Example 94 according to the embodiment of the present invention. Embodiment 94 is also configured as a headset 9081 which is a transmission / reception unit for a mobile phone, and is a headphone type capable of stereo listening. Since the embodiment 94 has many parts in common with the embodiment 92 of FIG. 143, the corresponding parts are denoted by the same reference numerals and description thereof will be omitted. In Example 94, as in Examples 92 and 93, the cartilage conduction portion is arranged at a position corresponding to the outer rear portion of the cartilage at the base of the ear, and a contact microphone is used for voice pickup. ing.

  Example 94 is different from Example 93 in that the headset 9081 is a neckband type stereo headset, and accordingly, contact microphones 9023a and 9023b are provided in the neckband unit 9081a, Vibrations of the sternocleidomastoid muscle on the back side of the neck are picked up from both sides by a pair of contact microphones 9023a and 9023b. Since this part vibrates well near the vocal cords, it is suitable for providing contact microphones 9023a and 9023b. Further, there is no hindrance when wearing a helmet or the like as described later.

  Hereinafter, a specific description will be given based on FIG. 145 (A). FIG. 145 (A) is a view of the state in which the headset 9081 of Example 94 is attached to the head as viewed from behind. In order to avoid complications as in FIG. 144 (A), the right ear is used as the head. 28 and left ear 30 are shown in phantom. In Example 94 of FIG. 145 (A), the right ear 9024 having the right piezoelectric bimorph element 8924a and the like and the left ear 9026 having the left piezoelectric bimorph element 8926a and the like are supported from below by the neckband part 9081a. The neckband portion 9081a has a shape along the back of the neck, and a pair of contact microphones 9023a and 9023b are provided inside the neckband portion 9081a so as to sandwich the back surface of the neck. Thereby, the vibration of the sternocleidomastoid muscle on the dorsal side of the neck can be suitably picked up. The pair of contact microphones 9023a and 9023b stabilize contact with the back surface of the neck and complementarily pick up vibration of the sternocleidomastoid muscle due to vocal vocalization from both sides.

  Further, the embodiment 94 is suitable to be used by wearing a helmet in the same manner as the embodiments 92 and 93. FIG. 145A shows a cross section of a helmet 9081b in order to explain the effect of such use. As apparent from FIG. 145 (A), the inner surface of the helmet 9081b has a shape that covers the right ear 28 and the left ear 30 gently, and is based on cartilage conduction from the right piezoelectric bimorph element 8924a and the left piezoelectric bimorph element 8926a. The energy of the air conduction sound generated inside the external auditory canal of both ears 28 and 30 is prevented from diffusing to the outside from the external auditory canal entrance, and it is possible to hear the sound due to cartilage conduction at a higher volume. In addition, since the sound is not generated outside the ear canal entrance by vibrating the helmet 9081b or the like, the sound of the outside world heard through the helmet 9081b is not masked in the helmet 9081b.

  FIG. 145 (B) is a block diagram showing details of the configuration of the embodiment 94, and portions common to the embodiment 93 of FIG. As is apparent from FIG. 145 (B), in Embodiment 94, the components picked up by the left contact microphone 9023a and the right contact microphone 9023b by the vibration of the right piezoelectric bimorph element 8924a and the left piezoelectric bimorph element 8926a transmitted through the neckband portion 9081a. It is small enough. Therefore, the configurations of the inverting circuit 8640 and the canceller 8636 provided in the embodiment 93 for canceling these vibration components are omitted.

  FIG. 146 is a block diagram of Example 95 according to the embodiment of the present invention. The 95th embodiment is also configured as a headset 9181 which is a transmission / reception unit for a mobile phone, and is a neckband type headphone capable of stereo listening. Since the embodiment 95 has many portions common to the embodiment 94 of FIG. 145, corresponding portions are denoted by the same reference numerals and description thereof is omitted. Also in Example 95, the cartilage conduction part is arranged at a position corresponding to the outer rear part of the cartilage at the base of the ear in the same manner as in Examples 92 to 94, and a contact microphone is used for voice pickup. ing.

  Embodiment 95 differs from Embodiment 94 in that the vibration of the right piezoelectric bimorph element 8924a and the left piezoelectric bimorph element 8926a is transmitted through the neckband portion 9181a and cancels the component picked up by the contact microphone 9123. The point is that an inverting circuit 8640 and a canceller 8636 are provided according to 93. Furthermore, in Example 95, unlike Example 94, a contact microphone 9123 is provided on the neckband portion 9181a in a left-right asymmetric manner. Specifically, the contact microphone 9123 is provided at a position closer to the left piezoelectric bimorph element 8926a than to the right piezoelectric bimorph element 8924a.

  As apparent from FIG. 146, for the vibration picked up from the left piezoelectric bimorph element 8926a, an inverting circuit 8640 and a canceller 8636 are provided in the same manner as in Embodiment 93, and the vibration originates from the left piezoelectric bimorph element 8926a picked up by the contact microphone 9123. The canceling vibration component is canceled. Further, in the embodiment 95 of FIG. 146, an inverting circuit 9140 is also provided for the vibration picked up from the right piezoelectric bimorph element 8924a, and the inverted circuit 9140 is added to the canceller 8636. The vibration component has been canceled. Such a configuration is useful for stereo listening in which audio signals input to the right piezoelectric bimorph element 8924a and the left piezoelectric bimorph element 8926a are different.

  Further, in Example 95, considering that the right piezoelectric bimorph element 8924a is farther from the contact microphone 9123 than the left piezoelectric bimorph element 8926a, the inverted output from the inverting circuit 9140 is attenuated by the attenuating circuit 9140a and added to the canceller 8636. I have. In this way, the cancellation is not excessive when the picked-up vibration is small.

  The implementation of the various features shown in each of the above embodiments is not limited to the above embodiments, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, the features related to the combination with the helmet described in the embodiments 92 to 95 can be utilized not only when the combination with the helmet is used. For example, the exchange of the audio signal from the audio unit to the external device is not limited to the short-range wireless communication, and the same advantage can be obtained in the case of the exchange in the wired manner.

  FIG. 147 is a perspective view and a sectional view of Example 96 according to the embodiment of the present invention, and are configured as a mobile phone 9201 and its cartilage conduction soft cover 7863 in the same manner as Example 84 of FIG. 126. Embodiment 96 is substantially the same as Embodiment 84, and therefore, the same portions are denoted by the same reference numerals and description thereof will be omitted.

  The mobile phone 9201 receives a pair of infrared light emitting portions 9219 and 9220 constituting a proximity sensor for detecting that the mobile phone 9201 is in contact with the ear for a call and infrared reflected light from the ear. A common infrared light proximity sensor 9221 for receiving light is provided. When the proximity sensor detects that the mobile phone 9201 is in contact with the ear, the display backlight of the large-screen display portion 9205 also serving as a touch panel is turned off to save power, and the touch panel function is disabled to prevent malfunction. To become This is because when the mobile phone 9201 is in contact with the ear, the large-screen display portion 9205 also serving as a touch panel comes into contact with a cheek or the like, and the touch panel may perform an undesirable operation in response thereto.

  On the other hand, when the earphone plug is inserted into the external earphone jack provided at the upper left of the mobile phone 9201, it is not normally assumed that the mobile phone 9201 is used by touching the ear. It is unlikely that the display portion 9205 contacts the cheek or the like to cause a malfunction. Further, if the proximity sensor detects a finger or the like and turns off the touch panel function, this is rather an undesirable operation. For these reasons, the touch panel function is not invalidated by the proximity sensor when the earphone plug is inserted.

  However, when the cartilage conduction soft cover 7863 is put on as in Example 96 and the external earphone plug 7885 is inserted into the external earphone jack for use, the vibration is transmitted to the ear cartilage in order to transmit the vibration of the cartilage conduction part 7824. Since the contact is made, the large-screen display portion 9205 serving also as a touch panel comes into contact with the cheek or the like, and there is a possibility that the touch panel performs an undesired operation in response to this. On the other hand, when the touch panel function is disabled by the proximity sensor even when the earphone plug is inserted, the normal earphone is inserted into the external earphone jack to use the mobile phone 9201 as described above. Therefore, there is a possibility that the proximity sensor detects a finger or the like and invalidates the touch panel function. In order to solve such a problem, the 96th embodiment covers the cartilage conduction soft cover 7863 while keeping the original touch panel function invalidation control based on the use of the proximity sensor and the external earphone jack. Is configured to prevent erroneous operation due to the large screen display unit 9205 serving also as a touch panel coming into contact with the cheeks or the like even when the user touches the ear cartilage.

  Specifically, when a call is started by inputting the telephone number of the other party and performing a touch panel operation or a call operation using the call button 9209a for a call, or when an incoming call is received, a response is made. For this reason, when a predetermined time (for example, one second) has elapsed after the touch panel operation or the response operation using the call button 9209a, the touch panel function is invalidated. In these situations, it is assumed that the mobile phone 9201 covered with the cartilage conduction soft cover 7863 is put on the ear, and the touch panel function may not be necessary. In order to notify the user that the touch panel function is disabled and to save power, when the touch panel function is disabled, the display on the large screen display unit 9205 is turned off and the display backlight is turned off.

  On the other hand, when the call is over, the touch panel function is activated by pressing a mechanical switch such as a call disconnect button 9209b, and the display on the large screen display unit 9205 is restarted and the display backlight is turned on to notify the user of this. Lights up.

  Even when the cartilage conduction soft cover 7863 is covered and the external earphone plug 7885 is inserted into the external earphone jack and used, it is assumed that the cartilage conduction part 7824 is brought into contact with the ear cartilage during a videophone call. Not done. For this reason, in the case of the videophone mode, the control of disabling and activating the touch panel as described above is not performed. Do not invalidate. In the state where the earphone plug is inserted for normal music appreciation, no operation related to the call is performed and no function related to the call is generated. Is not invalidated.

  FIG. 148 is a block diagram of a portion of the mobile phone 9201 in the embodiment 96 in FIG. The mobile phone 9201 in the embodiment 96 has many parts in common with the embodiment 86 in FIG. 131 except that it does not have a cartilage conduction-related function itself. As shown in FIG. 148, the embodiment 96 has a pair of infrared light emitting units 9219 and 9220 constituting a proximity sensor and a common infrared light proximity sensor 9221 that receives infrared reflected light from ears. The large-screen display portion 9205 also serving as a touch panel is provided with a display backlight 43 and a touch panel 9268. A touch panel driver 9270 controlled by the control portion 9239 realizes a touch panel function. The operation when the touch panel function is disabled is performed by the operation unit 9209 including a call button 9209a, a call disconnection button 9209b, and the like.

  FIG. 149 is a flowchart showing the function of the control unit 9239 of the embodiment 96 in FIG. 148. Note that the flowchart of FIG. 149 mainly extracts and illustrates the functions of disabling and enabling the touch panel, and omits ordinary functions of the mobile phone 9201 for the sake of easy understanding. Accordingly, the embodiment 96 includes various other related functions that operate in parallel with and before and after the function illustrated in FIG. 149.

  The flow in FIG. 149 starts when the main power switch provided in the operation unit 9209 is turned on. In step S492, initial startup and function check of each unit are performed, and screen display on the large screen display unit 9205 is started. Next, in step S494, the function of the touch panel 9268 is enabled, and the flow shifts to step S496. In step S496, it is checked whether any of various panel operations has been performed before the mobile phone 9201 starts communication. This panel operation includes not only basic operations such as menu selection, operations unrelated to communication such as music appreciation and camera functions, but also input of a telephone number and an e-mail address for communication and operations for starting a call and communication. . When it is detected that any of these operations has been performed, the process proceeds to step S498, performs communication start pre-processing corresponding to the operation, and proceeds to step S500. If the corresponding panel operation is not detected in step S496, the process directly proceeds to step S500.

  In step S500, it is checked whether or not communication has been started and a videophone call is in progress. If not, the process proceeds to step S502. In step S502, it is checked whether the external earphone jack 7846 is in use. This corresponds to whether any earphone plug is inserted into the external earphone jack 7846. If the external earphone jack 7846 is in use, the flow advances to step S504 to check whether there is an incoming call and whether an operation to respond to the incoming call has been performed. If not, the process proceeds to step S506. If there is no incoming call, of course, the process proceeds to step S506 if a response operation has not been performed even during the incoming call. In step S506, it is checked whether or not the calling function has started based on the calling operation. If not, the process proceeds to step S508. When the external earphone jack 7846 is used as described above, the process proceeds to step S508 with the touch panel 9268 being activated unless the communication execution stage is entered by an incoming or outgoing call operation.

  On the other hand, if it is detected in step S504 that an operation to respond to the incoming call is performed, the process proceeds to step S510, and after elapse of one second in step S510, the touch panel 9268 is invalidated in step S512, and the process proceeds to step S508. If it is detected in step S506 that the calling function has been started based on the calling operation, the process immediately proceeds to step S512, in which the touch panel 9268 is invalidated and the process proceeds to step S508.

  As described above, when an incoming call response operation is performed or when the calling function is started, the touch panel function is invalidated in step S512 since the touch panel function may not be necessary thereafter. Although not shown in FIG. 149 to avoid complication, as described above, when the touch panel function is disabled, the display on the large screen display unit 9205 is simultaneously turned off in step S512 and the display backlight 43 is turned off. Turn off the light.

  Note that waiting for one second in step S510 is not ready for responding to the incoming call in advance because the incoming call is passive based on an operation from the other party. Therefore, if the touch panel 9268 is invalidated immediately after the response operation and the display on the large screen display portion 9205 is turned off, anxiety is given to the operator, so that the display is continued for a while. In addition, when a response is mistakenly made, there is also a meaning that a call disconnection operation can be performed on the touch panel 9268 immediately thereafter. On the other hand, if the waiting time is too long, the mobile phone 9201 may be brought into contact with the ear, and the touch panel 9268 may hit the cheek, causing a malfunction. Therefore, these are balanced to keep the waiting time short. On the other hand, the call operation is an active final operation following the necessary operation such as the designation operation of the other party. Even if the operation of 9268 is invalidated, there is no fear or inconvenience to the operator, so that there is no waiting time. As described above, in the 96th embodiment, a difference is provided in the process of invalidating the touch panel between the case of the incoming call response and the case of the outgoing call.

  In step S508, the presence / absence of a mechanical operation for disconnecting the call by the call disconnection button 9209b or the like is checked. Then, the call is disconnected, and the process proceeds to step S518. Although illustration is omitted, when the touch panel function is enabled, the display on the large screen display unit 9205 is restored at the same time in step S514, and the display backlight 43 is turned on. On the other hand, if the mechanical operation for disconnecting the call is not detected in step S508, the process directly proceeds to step S518.

  If the use of the external earphone jack 7846 is not detected in step S502, the process shifts to step S520 to check whether a call is in progress. If a call is in progress, the flow shifts to step S522 to check whether or not the mobile phone 9201 is being put on the ear by the proximity sensor. If the contact with the ear is detected, the process proceeds to step S524, the touch panel 9268 is invalidated, and the process proceeds to step S526. If the touch panel 9268 is already invalidated when the step S524 is reached, the process goes to the step S526 without doing anything in the step S524.

  On the other hand, if it is not detected in step S520 that a call is in progress, or if no proximity sensor is detected in step S522, the process proceeds to step S528, the touch panel 9268 is enabled, and the process proceeds to step S526. If the touch panel 9268 is already activated when the process reaches step S528, the process goes to step S526 without doing anything in step S528.

  If a videophone call is being performed in step S500, the control of enabling and disabling the touch panel 9268 by the proximity sensor as described above is not performed, and the process immediately proceeds to step S526 with the touch panel 9268 kept enabled. . In step S500, when the external earphone jack 7846 is used, the touch panel 9268 is activated without controlling the activation and deactivation of the touch panel 9268 by the incoming call response operation, the call initiation, and the call disconnection mechanical operation. It also performs the function of keeping it.

  In step S526, it is checked whether or not the operation of disconnecting the call has been performed using touch panel 9268. If there is a call disconnection operation, the flow shifts to step S516 to execute a call disconnection. On the other hand, if it is determined in step S526 that the operation of disconnecting the call using the touch panel 9268 is not detected, the process proceeds to step S508. In a state where the touch panel 9268 is invalidated, it goes without saying that there is only a transition from step S526 to step S508. In step S508, the presence / absence of the previously described call disconnection mechanical operation is checked.

  In step S518, it is checked whether a main power-off operation has been performed, and if there has been an operation, the flow ends. On the other hand, if the main power-off operation is not detected, the process returns to step S 496, and thereafter, steps S 496 to S 526 are repeated to enable and disable the touch panel 9268 according to the situation, and the large-screen display unit 9205 associated therewith. Is displayed, and the control of turning on and off the display backlight 43 is performed. On the other hand, if the main power-off operation is detected in step S518, the flow ends.

  The implementation of the present invention is not limited to the above embodiment, and various modifications are possible. For example, in the 96th embodiment, a difference is provided in the process of invalidating the touch panel between the case of the incoming call response and the case of the outgoing call. However, the embodiment of disabling the touch panel is not limited to this, and the touch panel 9268 may be disabled through a similar process in the case of an incoming call response and the case of a call.

  Also, in the embodiment 96, steps S502, S520 to S524 and S528 are omitted, and the control of steps S504 to S516 is performed irrespective of the use of the external earphone jack 7846 unless a videophone call is in progress. You may comprise.

  Furthermore, in the embodiment 96, the step S502 is replaced with a check of “call-related function is in operation?”. When steps S516 to S516 and step S526 are omitted and the call-related functions except for the videophone are in operation, control by the proximity sensor by steps S520 to S524 and step S528 is performed regardless of the use of the external earphone jack 7846. May be performed.

  FIG. 150 is a front perspective view of Example 97 according to the embodiment of the present invention, which is configured as a mobile phone 9301. The mobile phone 9301 of the ninety-ninth embodiment is substantially similar in appearance to the mobile phone 8201 of the eighty-eighth embodiment of FIG. 136. For the internal configuration, the block diagram of Embodiment 26 in FIG. 42 is cited.

  Embodiment 97 is different from Embodiment 88 in that a function for explaining how to use the cartilage conduction function is added. In the 97th embodiment, similarly to the 88th embodiment, there is no problem in the call even if the center of the upper side is put on the ear like a normal mobile phone. However, in order to better utilize the function of cartilage conduction, it is necessary to put the right and left corners 8224 and 8226, which are cartilage conduction parts, on the ears, which is different from the usual case. For this reason, the embodiment 97 has a function of explaining how to use the cartilage conduction mobile phone to a user who is not accustomed to using it.

  FIG. 150 (A) has the same structure as FIG. 136 (A), but is omitted from FIG. 136 (A) for the videophone speaker 51 and the pair of infrared light emitting portions 19 forming the proximity sensor. , 20 and an infrared light proximity sensor 21 are shown. Since these functions are the same as those already described in the first embodiment and the like, the description thereof is omitted.

  FIG. 150 (B) shows that the cartilage conduction basic guide display 9305a is displayed on the large screen display portion 8205 in the 97th embodiment. The mobile phone 9301 of the ninety-ninth embodiment performs a cartilage conduction basic guide display 9305a such as "This is a cartilage conduction smartphone for listening at a corner" for a predetermined time (for example, 5 seconds) when the power is turned on. The same display is performed when the mobile phone 9301 is not tilted until a call is made and the other party goes out or until there is an incoming call and an operation to receive the call is performed.

  FIG. 150 (C) shows that the right corner guidance display 9305b is displayed on the large screen display portion 8205 in the 97th embodiment. The mobile phone 9301 according to the ninety-ninth embodiment is tilted to the right until the caller performs a call operation and the other party comes out, or until there is an incoming call and an operation to receive the call is performed. At this time, a right corner guidance display 9305b such as "Please touch the right corner to the ear hole" is performed. Tilt to the right implies that the mobile phone 9301 is held in the right hand and is about to be put on the right ear for a call, so that the right corner 8224 is put on the right ear. Such a display is performed. As is apparent from FIG. 150 (C), the right corner guidance display 9305b is a graphic display indicating the right corner 8224 to be touched.

  Similarly, FIG. 150D shows that the left corner guidance display 9305c is displayed on the large screen display portion 8205 of the 97th embodiment. When the mobile phone 9301 is tilted to the left between the time when the calling operation is performed and the other party comes out, or the time when there is an incoming call and the operation for receiving the incoming call, the message “Left corner into ear hole” The left corner guidance display 9305c such as "Please hit" is performed in the same manner as in FIG. 150 (C). In this case, it is assumed that the user holds the mobile phone 9301 with his left hand and tries to put it on the left ear. Therefore, such a display is performed to prompt the user to put the left corner 8226 on the left ear. The left corner guidance display 9305c is a graphic display indicating the left corner 8226 to be touched, as in FIG. 150 (C).

  FIG. 151 is a flowchart showing the function of the control unit 2439 in the block diagram of the embodiment 26 in FIG. 42 incorporated in the embodiment 97 in FIG. 150. In addition, the flowchart of FIG. 151 mainly extracts and illustrates the function of the usage guidance for convenience of understanding, and omits the normal functions of the mobile phone 9301. Accordingly, the embodiment 97 includes various other related functions that operate in parallel with and before and after the function illustrated in FIG. 151.

  The flow in FIG. 151 starts when the main power switch is turned on. In step S532, initial startup and function checks of each unit are performed, and screen display on the large screen display unit 8205 is started. Next, at step S534, the cartilage conduction basic guidance display 9305a (see FIG. 150 (B)) is performed, and the process proceeds to step S536 while continuing the display to check whether 5 seconds have elapsed. If it has not elapsed, the process returns to step S534, and the display is continued by repeating steps S534 and S536. On the other hand, if it is detected in step S536 that 5 seconds have elapsed, the process advances to step S538 to stop the cartilage conduction basic guide display 9305a.

  Next, in step S540, it is checked whether or not a predetermined number of days (for example, two weeks) have elapsed since the start of use of the mobile phone 9301. If not, the process proceeds to step S544. Details of the guidance stop applicable history will be described later. In step S544, it is checked whether a calling operation has been performed. If no operation has been performed, the process proceeds to step S546 to check whether an incoming call has been received. If there is an incoming call, the process moves to step S548. Also, when a calling operation is detected in step S544, the process shifts to step S548. At this point, the call has not yet started, the mobile phone 9301 has not been put on the ear, and the user is looking at the large screen display portion 8205.

  Next, in step S548, it is checked whether or not the mobile phone 9301 is tilted to the left based on the gravitational acceleration detected by the acceleration sensor 49 (see FIG. 42). If the mobile phone 9301 is not tilted to the left, the process proceeds to step S550, and similarly, based on the acceleration sensor 49, it is checked whether the mobile phone 9301 is tilted to the right. If there is no rightward inclination, the flow proceeds to step S552, in which the same cartilage conduction basic guidance display 9305a as in step S534 is performed, and the flow shifts to step S554.

  On the other hand, when the leftward tilt of the mobile phone 9301 is detected in step S548, the process proceeds to step S556, a left corner guidance display 9305c (see FIG. 150 (D)) is performed, and the process proceeds to step S554. Similarly, when the rightward tilt of the mobile phone 9301 is detected in step S550, the process proceeds to step S558, a right-angle guidance display 9305b (see FIG. 150C) is performed, and the process proceeds to step S554.

  In step S554, it is checked whether the condition for stopping the guidance display started in step S552 or step S556 or step S558 is satisfied. If the condition is not satisfied, the process returns to step S548. Steps S558 to S558 are repeated. If the inclination is detected during this repetition, the display shifts from the cartilage conduction basic guidance display 9305a in FIG. 150 (B) to the left corner guidance display 9305c in FIG. 150 (D) or the right corner guidance display 9305b in FIG. 150 (C). I do. From this, the user can determine the corner to be properly applied to the ear.

  Although not shown in FIG. 151 for the sake of simplicity, when the guidance display is performed in step S552, step S556, or step S558, the guidance of the same content is provided from the videophone speaker 51 in conjunction with the guidance display. Announcements are made by voice. Note that it is also possible to set a silent mode in which such a sound is not generated. Such voice guidance from the videophone speaker 51 is stopped at the same time when the corresponding display on the large screen display portion 8205 is stopped.

  On the other hand, when it is detected in step S554 that the guidance display stop condition is satisfied, the process proceeds to step S560, in which a guidance announcement process and a control process are performed, and the process proceeds to step S562. The process of step S560 stops the guidance display, controls the cartilage conduction guidance announcement by the cartilage conduction from the upper frame 8227, and further performs the guidance control process such as the process of the guidance stop corresponding history. . The details will be described later.

  It should be noted that when it is detected in step S540 that a predetermined number of days have elapsed since the start of using the mobile phone 9301, or when the storage of the guidance stop corresponding history is detected in step S542, or no incoming call is detected in step S546. In any case, the process immediately proceeds to step S562. That is, in these cases, no guidance display is performed. Unnecessarily long-term display is troublesome for users who are not interested, and it is appropriate not to provide guidance anymore when there is a history of guidance suspension, and it is time-consuming to provide guidance when a call is not scheduled. Because it is not Lee.

  In step S562, it is checked whether a main power-off operation has been performed, and if there has been an operation, the flow ends. On the other hand, if the main power-off operation is not detected, the process returns to step S540, and thereafter, steps S540 to S562 are repeated to perform guidance control according to the situation. On the other hand, if it is detected in step S562 that the main power supply has been turned off, the flow ends.

  FIG. 152 is a flowchart showing the details of steps S554 and S560 shown in bold in FIG. When step S554 is reached in FIG. 151, the flow of FIG. 152 starts, and in step S572, whether or not an operation of manually stopping the guidance display using the touch panel 2468 (see FIG. 42) provided on the large screen display portion 8205 has been performed. Check if. This operation is performed by a user who understands the guidance or who is not interested in the guidance to erase the useless display. If this operation is not performed, the flow shifts to step S574, and it is checked whether or not the mobile phone 9301 has been placed on the ear by the proximity sensors (19, 20, 21). If this is not the case, the process returns to step S548 in FIG. As described above, steps S572 and S574 in FIG. 152 correspond to the detailed contents of the check of the guidance display stop condition in step S554 in FIG. 151.

  If the proximity is detected in step S574, the flow moves to step S576. Step S576 and subsequent steps correspond to the details of step S560 in FIG. 151. In step S576, it is checked whether the normal use of the cartilage conduction function has been performed. Specifically, it is determined whether the right corner 8224 or the left corner 8226 of the mobile phone 9301 or the center thereof is in contact with the ear by judging the output of the proximity sensor (19, 20, 21). This is the case where the corner 8224 or the left corner 8226 is applied, and is the correct corner indicated by the inclination detected by the acceleration sensor 49 (the right corner 8224 when tilting right, or the left corner when tilting left). Section 8226) is detected. Then, when the normal use state is not detected, the flow moves to step S578.

  In step S578, it is checked whether or not the mobile phone 9301 is tilted to the left based on the gravitational acceleration detected by the acceleration sensor 49. If the mobile phone 9301 is not tilted to the left, the process advances to step S580 to determine whether the mobile phone 9301 is tilted to the right based on the acceleration sensor 49. If there is no rightward inclination, the flow proceeds to step S582, where a cartilage conduction basic guidance announcement having the same contents as in step S552 in FIG. 151 is performed by cartilage conduction from the upper frame 8227, and the flow proceeds to step S584. Note that the state that has reached step S578 is a state in which the mobile phone 9301 is being put on the ear, and therefore does not normally reach step S582. In order not to announce incorrect information sometimes, a step S582 for announcing general information is provided.

  On the other hand, when the leftward tilt of the mobile phone 9301 is detected in step S578, the process proceeds to step S586, and a left corner guidance announcement (for example, the same sentence as the display in FIG. 150 (D)) is performed by cartilage conduction from the upper frame 8227, and the step is performed. The process moves to S584. Similarly, when the rightward tilt of the mobile phone 9301 is detected in step S580, the process proceeds to step S588, and a right corner guidance announcement (the same sentence as the display in FIG. 150 (for example, C)) is performed by cartilage conduction from the upper frame 8227. Then, control proceeds to a step S584.

  In step S584, it is checked whether or not the call has been started by an operation of responding to the caller's response to the outgoing call or the incoming call. If the call has not been started, the process returns to step S576. Or, unless normal use is detected in step S576, steps S576 to S584 are repeated. During this repetition, if the way of contact with the ear is changed and a normal use state is detected, the guidance announcement will be stopped as described below, and if the inclination is detected, a specific announcement to the corner to be applied will be made. Be started. Further, if the left and right are changed, the angle indicated by the announcement is changed. As a result, a user who makes a wrong application can know the correct application by ear.

  On the other hand, when the start of the call is detected in step S584, the guidance announcement is stopped even if the correct application is not performed. This is to prevent the announcement announcement from interfering with the call. Further, the process proceeds to step S592, stops the guidance display started in step S552 or step S556 or step S558 in FIG. 151, and shifts to step S562 in FIG. 151. At this time, if a guidance announcement is issued from the videophone speaker 51, this is also stopped.

  By the way, in the flow of FIG. 152, the guidance display is continued until step S592, but there is no problem even if the display is continued until the start of the call while the mobile phone 9301 is in contact with the ear. In addition, if a guidance announcement from the videophone speaker 51 is issued, the same is continued until the start of the call, but there is no problem because the announcement content is the same as that of the cartilage conduction from the upper frame 8227 and is synchronized with the same content. . Since the guidance display and the announcement announcement from the videophone speaker 51 are not particularly necessary when the mobile phone 9301 is put on the ear as described above, the same as step S592 is further performed between step S574 and step S576. A step of stopping the guidance display may be inserted.

  On the other hand, when the normal use of the cartilage conduction function has been performed in step S576, the guidance announcement is stopped in step S594, and the process proceeds to step S596. At this time, when the process proceeds from step S576 to step S594 without passing through step S582, S586, or S588, the guidance announcement is not originally performed, and the process proceeds to step S596 without doing anything in step S594. Also, when it is detected in step S572 that an operation for manually stopping the guidance display has been performed, the process proceeds to step S596.

  In step S596, the operation in step S572 or the detection in step S576 is recorded as a history corresponding to the guidance stop, and the flow shifts to step S592. The history recorded in step S596 is checked in step S542 in FIG. 151, and when these histories are detected, as described above, in FIG. 151, the process immediately proceeds from step S542 to step S562, and both the guidance display and the guidance announcement are performed. Nothing will be done.

  FIG. 153 is a sectional view and a block diagram of Example 98 according to the embodiment of the present invention, and are configured as a stereo headphone system 9481. Since the embodiment 98 is based on the embodiment 91 of FIG. 141, common items are denoted by the same reference numerals, description thereof will be omitted, and the description will focus on added items. In the block diagram of FIG. 153 (A), a cartilage conduction portion for right ear 8524 and a cartilage conduction portion for left ear 8526 having through holes 8524a and 8526a at the center respectively are connected to an external output of the portable music player 9484 by a plug 9485. A jack 9446 can be connected. No amplifier or power supply is provided between the right ear cartilage conduction part 8524 and the left ear cartilage conduction part 8526 and the plug 9485, and the right ear cartilage conduction part 8524 and the left ear cartilage conduction part 8526 are The output power of the external output jack 9446 is driven to produce the required cartilage conduction.

  The portable music player 9484 outputs a stereo sound source to the cartilage conduction unit for right ear 8524 and the cartilage conduction unit for left ear 8526 in the same manner as the sound source unit 8584 in FIG. 141. The portable music player 9484 includes a short-range data communication unit 9487 made of Bluetooth (registered trademark) or the like, and cooperates with an external ordinary mobile phone. Then, when an incoming signal to an external ordinary mobile phone is received, the input signal to the stereo amplifier 8540 is switched from the music signal from the sound processing circuit 8538 to the incoming sound signal of the incoming sound source 9466 to notify the incoming call. The short-range data communication unit 9487 also receives a response to an incoming call or a call operation signal from a normal mobile phone, and stops the output from the stereo amplifier 8540 to the cartilage conduction unit for left ear 8526 by the switch 8540a. Thus, the mobile phone can be normally put on the left ear for talking by air conduction from the through hole 8526a. Although FIG. 153 shows only a configuration for stopping output to the cartilage conduction unit for left ear 8526 for simplicity, a similar configuration for stopping output to the cartilage conduction unit for right ear 8524 is provided, and the right By setting which of the outputs of the cartilage conduction part for ears 8524 and the cartilage conduction part for left ears 8526 is stopped, the output from the cartilage conduction part on one ear, which is normally applied when using a mobile phone, is stopped. An air-conducted call can be made without interruption.

  The embodiment 98 in FIG. 153 can have a simpler configuration if necessary. First, if the shutter 8558 and the shutter driving portion 8557 described in the embodiment 91 of FIG. 141 are omitted, the configurations of the cartilage conduction portion for right ear 8524 and the cartilage conduction portion for left ear 8526 having the through holes 8524a and 8526a are further simplified. Becomes In this case, the shutter control unit 9439 of the portable music player 9484 (corresponding to the shutter control unit 8539, the noise detection unit 8538, and the hand operation unit 8509 of the embodiment 91 in FIG. 141) is also omitted. Further, the data short-range communication section 9487, the incoming sound source 9466, and the switch 8540a can be omitted. Since the cartilage conduction part for right ear 8524 and the cartilage conduction part for left ear 8526 of the embodiment 98 of FIG. You can listen to the surrounding sounds by guiding, so you can notice the ringtone of an external mobile phone by the user's concentration on the sound you want to hear, and you can also talk normally with the mobile phone in your ear It is not impossible. On the other hand, for example, ordinary stereo headphones or stereo earphones cover or cover the ears, so that the ringtone of an external mobile phone cannot be noticed. Earphones must be removed.

  FIG. 153 (C) is a side view of a modification of the ninety-eighth embodiment. FIG. 153 (A) and FIG. 153 (B), which is an enlarged view of a main part thereof, have a configuration in which the cartilage conduction part for right ear 8524 and the cartilage conduction part for left ear 8526 are brought into contact with the external auditory canal entrance 30a by the head arm. FIG. 153 (C) shows a configuration in which the cartilage conduction part 9424 is sandwiched in the space between the inside of the tragus 32 and the anti-auricular ring 28a. Although only the right ear 28 is shown for simplicity, FIG. 153 (C) is also a stereotype. As is clear from FIG. 153 (C), the cartilage conduction part 9424 for the right ear of the modified example has a through-hole 9424a that substantially coincides with the ear canal entrance 30a.

  FIG. 154 is a table showing actual measurement values of the working example 98. The measurement was performed by connecting the stereo cartilage conduction part in the modified example of FIG. 153 (C) to the portable music player 9484 of FIG. 153 (A). The “output voltage (mVrms)” shown in FIG. 154 is an effective value (as measured by an oscillograph when the output of the external output jack 9446 in a no-load state is measured by a voltage meter while changing the volume of the stereo amplifier 8540. Half-wave peak height divided by route 2). The measurement was performed by generating a 1 kHz pure tone from a stereo amplifier. As can be seen from FIG. 154, the maximum output effective value of the portable music player 9484 of the 98th embodiment is 1 volt.

  The “vibration acceleration (dB)” in FIG. 154 is obtained by connecting the cartilage conduction part 9424 to the portable music player 9484 having the output capability as described above, and transmitting the vibration from the inside of the tragus to the vibration outside the tragus. Acceleration. The reference value of decibel in FIG. 154 is the square of 10 minus 6 m / sec. In this measurement, a pure tone of 1 kHz is generated from the stereo amplifier 8540, and the vibration acceleration is measured while changing the volume. The vibration source of the cartilage conduction part 9424 used in the measurement is a piezoelectric bimorph element having a capacitance between terminals of 0.8 μF, and a voltage substantially equal to the voltage of the external output jack 9446 measured in a no-load state is obtained. This can be regarded as being input to the bimorph element.

  “Psychological reaction” in FIG. 154 is obtained by examining how the above measured values are actually heard by a human subject as an example (this result needs to be determined in consideration of variations due to individual differences). It is. As shown in “Psychological Response” in FIG. 154, when a pure tone of 1 kHz is generated from the stereo amplifier 8540, the threshold is 14.6 dB that can be heard, and the volume level of the stereo amplifier 8540 is 25 (in this case, the piezoelectric bimorph It can be considered that an effective voltage of about 3.3 mV substantially equal to the output voltage from the stereo amplifier 8540 is input to the element). Therefore, if the input voltage is set higher than this, a pure sound of 1 kHz due to cartilage conduction can be heard with a larger sound.

  Next, music (pop system) was output from the stereo amplifier 8540, and the level at which the user was able to listen to comfort (a state not too small and not too small) by cartilage conduction was examined. As shown in the “psychological reaction” of FIG. 154, when the volume level of the stereo amplifier 8540 is set to 4 (at this time, an effective voltage of about 400 mV, which is almost equal to the output voltage from the stereo amplifier 8540, is input to the piezoelectric bimorph element). The subject replied that they could comfortably listen to music.

  From the above, when the maximum output to the outside is 500 mVrms or more and connected to the external output of this sound source device, when there is an input of 200 mVrms, 50 dB is applied to the back of the tragus (the reference value is minus 6 minus 10). A combination of cartilage conduction parts that can obtain a vibration acceleration of at least the square of the power m / sec) or more can be considered as one that enables comfortable listening to music.

  FIG. 155 is a circuit diagram showing details of a combinational circuit of a booster circuit unit and an analog output amplifier unit that can be employed in the embodiments 74 and 75 shown in FIGS. 114 and 115. The circuit shown in FIG. 115 can be used as a part of the IC of the driver circuit 7003 in Embodiment 74 or the driver circuit 7103 in Embodiment 75, but can also be configured as a single IC. In FIG. 155, the same parts as those in FIG. 114 or FIG.

  In Embodiments 74 and 75, a charge pump circuit is illustrated as the booster circuit 7054. However, in the circuit in FIG. 155, a switching regulator is used as the booster circuit portion. Specifically, the booster circuit in FIG. 155 includes a switching regulator including a switching control unit 7054b, an inductance 7054c, a diode 7054d, a capacitor 7054e, and the like. Then, an output voltage of 15 volts is generated at the output unit 7054f based on the voltage supplied from the power management circuit 7053. Further, the reference voltage output unit 7054g divides the voltage of the output unit 7054f by a resistance of 100 kΩ to generate a reference voltage 7054g for amplifier output.

  15 volts of the output unit 7054f is applied to the power supply (VCC) of the analog amplifier unit 7040. A reference voltage 7054g is applied to the non-inverting input of CH1 of the analog amplifier 7040. A sound signal from a sound processing circuit 7038 (corresponding to the AD conversion circuit 7138a, the digital sound processing circuit 7138, and the DA conversion circuit 7138b in the case of the seventy-fifth embodiment) is applied to the inverted inputs of CH2 and CH4 of the analog amplifier unit 7040, respectively. Is entered. A sound signal is output from each of the outputs of CH2 and CH4 of the analog amplifier unit 7040, and drives the piezoelectric bimorph element 7013. An enable signal is input from a control terminal 7003a to each enable terminal (ENB) of the switching control unit 7054b and the analog amplifier unit 7040. When the piezoelectric bimorph element 7013 is driven, the switching control unit 7054b and the analog amplifier unit 7040 are activated. When the state is set and the vibration of the piezoelectric bimorph element 7013 is stopped (videophone mode or the like), the functions of the switching control unit 7054b and the analog amplifier unit 7040 are stopped.

  FIG. 156 is a system configuration diagram of Example 99 according to the embodiment of the present invention. The embodiment 99 is configured as a headset 9581 which is a transmission / reception unit for a mobile phone, similarly to the embodiment 89 of FIG. The embodiment 99 of FIG. 156 has many parts common to the embodiment 89 of FIG.

  The difference between the embodiment 99 in FIG. 156 and the embodiment 89 in FIG. 139 is that the ear hook 9582 is provided with an extension 9582b for making contact with the front side of the tragus 32 (the side opposite to the ear canal entrance 232 side). Is a point. As a result, as shown in FIG. 156 (A), the rear inner edge 9582a of the ear hook portion 9582 comes into contact with the rear part (mastoid side of the pinna attachment part) of the outer side 1828 of the cartilage at the base of the ear 28 and extends. 9582b comes into contact with the front side of the tragus 32, and the two put the cartilage around the ear canal entrance 232 therebetween.

  This state has two significances. First, the ear cartilage is sandwiched from the outside of the ear 28 before and after the external auditory canal entrance 232 as described above, so that the attachment is stable and the rear part of the cartilage 1818 at the base of the ear 28 (auricle) The ear hooks 9582 are stably contacted with an appropriate pressure on the mastoid side of the attachment part) and the front side of the tragus 32. That is, the extension portion 9582b serves as a support for bringing the rear inner edge 9582a of the ear hook portion 9582 into contact with the rear portion (mastoid side of the pinna attachment portion) of the outer side 1828 of the cartilage at the base of the ear 28, and conversely. The rear inner edge 9582a of the ear hook 9582 serves as a support for bringing the extension 9582b into contact with the front side of the tragus 32. Moreover, since the ear 28 is sandwiched from the front and rear, nothing covers the ear canal entrance 232. Therefore, it is obvious at a glance that the outside air conduction sound does not prevent the ear from entering the ear. For example, even if the ear is covered as in the embodiment 98 in FIG. It is possible to avoid trouble with a person who does not know the fact that the sound is heard, and inconsistency with laws and regulations where this fact is not assumed.

  Second, the rear part of the outer side of the cartilage at the base of the ear 28 (the mastoid side of the pinna attachment part) and the front side of the tragus 32 are both parts where good cartilage conduction is obtained, and the holding pressure is secured. In this case, both contact portions for sandwiching the ear 28 from the front and back function as a cartilage conduction portion. That is, the vibration of the piezoelectric bimorph element 8325 transmitted to the holding portion 8325a shown in FIG. 156 (B) is transmitted through the ear hook portion 9582 itself and transmitted to the rear inner edge 9582a and the extension portion 9582b. The transmission of the vibration from the holding portion 8325a to the extension portion 9582b means that the vibration of the cartilage conduction portion 6124 for the right ear is transmitted to the cartilage conduction portion 6126 for the left ear via the connection portion 6127 in Example 65 in FIG. It can be understood from what is done. That is, the portion of the ear hook 9552 between the rear inner edge 9582a and the extension 9582b constitutes a connecting portion for transmitting vibration between them.

  As shown in FIG. 156 (B), the vibration direction of the piezoelectric bimorph element 8325 is a direction crossing the central axis of the ear canal entrance 232 (corresponding to substantially the front-back direction of the face) as indicated by an arrow 8325b. In the embodiment of the mobile phone, the vibration of the piezoelectric bimorph element 8325 is obtained regardless of whether the mobile phone is put on the ear as shown in FIG. It is preferable that the direction is along the central axis of the ear canal entrance 232 (the left-right direction of the face and corresponds to the direction in which sound enters from outside), but as described above, the cartilage at the base of the ear 28 is When transmitting vibration from the rear portion of the outer side 1828 (the mastoid side of the pinna attachment portion) or the front side of the tragus 32, the vibration direction of the piezoelectric bimorph element 8325 crosses the central axis of the external auditory canal entrance 232 (the direction of the face). (Corresponding substantially to the front-back direction).

  FIG. 157 is a side view of the ear hook portion in various modifications of the embodiment 99 shown in FIG. 156. As shown in FIG. 156 (A), in Example 99, the rear inner edge 9582a of the ear hook portion 9582 contacts the rear portion (the mastoid side of the pinna attachment portion) of the outer side 1828 of the cartilage at the base of the ear 28. The extension 9582b is in contact with the front side of the tragus 32, and sandwiches the cartilage around the entrance 232 of the ear canal. In this case, the distance between the rear part of the outer side 1828 of the cartilage at the base of the ear 28 and the front side of the tragus 32 differs depending on individual differences such as age and gender. Therefore, in the embodiment 99, a plurality of sizes are prepared, and the customer can select one that fits the user from among them. On the other hand, the modified example in FIG. 157 is configured such that the distance is variable and can be used by anyone.

  Specifically, FIG. 157 (A) is a first modification of the ninety-ninth embodiment, in which the entire ear hanging portion 9582 is made of an elastic body 9582c. This allows the extension 9582b to resiliently open as shown by the arrow 9582d, and covers the individual differences to ensure that the rear inner edge 9582a of the ear hook 9582 is attached to the cartilage at the base of the ear 28 for any ear. The ear hook portion 9582 can be fitted so that the extension portion 9582b contacts the front side of the tragus 32 while contacting the rear portion (the mastoid side of the pinna attachment portion) of the outer side 1828. As described in the fifth embodiment of FIG. 11 to the tenth embodiment of FIG. 19, if an elastic material whose acoustic impedance is similar to that of the ear cartilage is adopted, vibration can be transmitted to the extension 9582b by an elastic body. it can.

  FIG. 157 (B) is a second modification of the ninety-ninth embodiment, in which the entire ear hook portion 9582 is made of a material having normal hardness, and a flexible structure 9582f such as a thin portion between the rear portion 9582e and the extension portion 9582b. This allows the extension 9582b to resiliently open as shown by arrow 9582d. In addition, the flexible structure 9582f is a connecting portion for transmitting vibration. Note that the flexible structure portion 9582f is filled with an elastic body 9582g in order to reinforce the flexible structure portion 9582f and obtain a smooth appearance.

  FIG. 157 (C) shows a third modification of the ninety-ninth embodiment, in which the entire ear hook portion 9582 is made of a material having a normal hardness, and the portion between the rear portion 9582e and the extension portion 9582b is rotatable about a rotation shaft 9582h. The extension 9552b is provided with elasticity in the clockwise direction in the drawing by connecting the rotation shaft 9582h with a spring. This allows the extension 9582b to be resiliently opened as shown by arrow 9582d. In addition, a connecting portion by the rotating shaft 9582h is a connecting portion for transmitting vibration.

  FIG. 157 (D) is a fourth modification of the ninety-ninth embodiment, and has basically the same configuration as that of the third modification of FIG. 157 (C). The fourth modification of FIG. 157 (D) is configured so that the rotation shaft 9582i can be rotated and adjusted by a flathead screwdriver, and the rotation causes the elasticity of the extension 9582b by a spring in the clockwise direction on the drawing. You can adjust the strength. As a result, adjustment can be made so that an appropriate contact pressure can be obtained regardless of individual differences. Note that an index 9582j is provided on the rotation shaft 9582i, and the index can be visually checked by adjusting the index to the scale 9582k. When listening to sound information due to cartilage conduction in stereo by attaching the same ear hooks to the right and left ears, first adjust the contact pressure with one of the ears, and on the same scale 9582k. By adjusting the index 9582j, adjustment can be performed so that the right and left contact pressures become the same. Of course, it is also possible to adjust so that the right and left contact pressures are different depending on preference. Also in this case, the scale 9582k and the index 9582j serve as a reference for adjustment.

  The various features of each embodiment described above are not limited to the individual embodiments, but can be replaced or combined with the features of other embodiments as appropriate. For example, when transmitting vibration from the mastoid side of the auricle attachment part or the front side of the tragus, the direction of vibration of the cartilage conduction vibration source crosses the center axis of the external auditory canal entrance (corresponding to almost the front-back direction of the face). This configuration is not limited to the case where the cartilage conduction vibration source is the piezoelectric bimorph element 8325 as in Embodiment 99, but is also suitable for the case where an electromagnetic vibrator or the like is used as the cartilage conduction vibration source.

  FIG. 158 is a perspective view and a cross-sectional view of Example 100 according to the embodiment of the present invention, which is configured as a mobile phone 9601. The embodiment 100 is the same as the embodiment 46 shown in FIG. 69 except for the structure and the arrangement of the cartilage conduction vibration source constituted by the piezoelectric bimorph element. Regarding portions, common portions are assigned the same reference numerals and description thereof is omitted unless necessary.

  As shown in FIG. 158 (A), the mobile phone 9601 of the embodiment 100 is provided with elastic portions 4263a, 4263b, 4263c and 4263d as protectors in the same manner as the embodiment 46 of FIG. Further, the inside of the elastic portions 4263a and 4263b at the upper two corners also serves as a holding portion of the piezoelectric bimorph module 9625, and the outside of the elastic portions 4263a and 4263b also serves as a cartilage conduction portion which comes into contact with the ear cartilage.

  The mobile phone 9601 of the embodiment 100 differs from the embodiment 46 of FIG. 69 in the structure of the piezoelectric bimorph module 9625 held inside the elastic portions 4263a and 4263b at the upper two corners. As shown in FIG. 158 (B), in the piezoelectric bimorph module 9625, both ends of a metal plate 9697 protrude outward from the package portion 9625a and extend. Both ends of the extended metal plate 9697 are bent portions 9697a and 9697b and support portions 9697c and 9697d, respectively. Note that a vibrating portion 9625b and a circuit portion 9636 are sealed in the package portion 9625a. Further, the package portion 9625a has a minimum thickness necessary for protecting the vibration portion 9625b and the circuit portion 9636, and the vibration portion 9625b of the piezoelectric bimorph module 9625 has an extremely thin shape. As described above, the piezoelectric bimorph module 9625 of Example 100 is a module component in which a circuit portion is sealed in a package. Note that the piezoelectric bimorph module 9625 is a thin component in the front-rear direction of the mobile phone 9601 as described above. However, as illustrated in a cross section of the support portion 9697d in FIG. The vibrating portion 9625b also has a considerable width to secure the strength and vibration power of the metal plate 9697.

  Since the piezoelectric bimorph module 9625 is configured to be supported by the metal plate 9697 bent as described above, as illustrated in FIG. 158 (B), the support portions 9697c and 9697d are substantially centered inside the elastic portions 4263a and 4263b. When held, the thin package portion 9625a including the vibrating portion 9625b can be arranged close to the upper surface of the mobile phone 9601 (near the GUI display portion 3405), and other components can be arranged above the mobile phone 9601. Layout space 9601a can be secured. Even when the metal plate 9697 has such a bent structure, the vibration of the vibrating portion 9625b is transmitted from the supporting portions 9697c and 9697d, which are the ends thereof, to the elastic portions 4263a and 4263b, respectively, and the elastic portions 4263a and 4263b are preferably connected to the cartilage conduction. It can function as a unit. The acoustic characteristics for cartilage conduction are designed based on the vibration behavior of the entire structure in which both ends of the piezoelectric bimorph module 9625 are supported by such elastic portions 4263a and 4263b. Then, if necessary, the acoustic characteristics are adjusted by the equalizer function of the circuit unit 9636 as described later.

  In addition, when the package portion 9625a is disposed near the upper surface of the mobile phone 9601 in this manner, the vibrating portion 9625b is closer to the ear, so that the air conduction sound generated from the vibrating portion 9625b generates The user can hear better, and even if the conventional way of listening according to FIG. 137 (B) is used, the other party's voice can be heard with guidance. When designing with such an intention, a hole for passing air conduction sound may be provided on the upper surface side of the mobile phone 9601.

  Note that, depending on the design of the mobile phone 9601, by disposing the piezoelectric bimorph module 9625 upside down, the package portion 9625a can be arranged close to the upper surface of the mobile phone 9601 near the rear surface side. A layout space for arranging other components can be secured above the 9601. With this arrangement, a layout in which the package portion 9625a does not disturb components arranged on the front surface side of the mobile phone 9601 such as the inner camera can be realized.

  FIG. 159 is a schematic sectional view and a circuit diagram showing details of the structure of the piezoelectric bimorph of Example 100 shown in FIG. 158. 158 are denoted by the same reference numerals, and description thereof is omitted unless necessary. FIG. 159 (A) is a schematic cross-sectional view showing the structure of the main part of the piezoelectric bimorph module 9625. The middle part of the vibrating part 9625b, which occupies most of the length, has the same structure as the both ends, so it is enlarged. Is omitted due to space limitations. The vibrating part 9625b shown in FIG. 158 corresponds to the piezoelectric ceramic plates 9698 and 9699 bonded to both sides of the metal plate 9697 in FIG. 159. Although the piezoelectric ceramic plates 9698 and 9699 are extremely thin in the front-rear direction of the mobile phone 9601, they have a width in the vertical direction corresponding to the support portion 9697d of the metal plate 9697 shown in FIG. 158 (C).

  In addition, the circuit portion 9636 is mounted on a metal plate 9697 in an insulated manner, is connected to a metal plate 9697 serving as a common electrode of the piezoelectric ceramic plates 9698 and 9699, and is provided with opposed electrodes 9698a and 9699a of the piezoelectric ceramic plates 9698 and 9699. Are connected together. Note that an insulated through hole 9697e is provided in the metal plate 9697 to connect the counter electrode 9698a to the counter electrode 9698b. The package portion 9625a covers these structures with a minimum thickness necessary for protection, and makes the piezoelectric bimorph module 9625 extremely thin. Note that four terminals 9636a (for power supply and audio signal input) are provided from the circuit portion 9636 and are exposed from the package portion 9625a. As shown in FIG. 159 (A), it is preferable in terms of mounting that the four terminals 9636a be collectively arranged inside the piezoelectric bimorph module 9625 (on the side where the bent portions 9697a and 9697b extend).

  FIG. 159 (B) is a circuit diagram of the circuit portion 9636. In FIG. 159 (B), four terminals 9636a correspond to power supply terminals Vcc and G and an audio signal input terminal, respectively. It corresponds to IN1 and IN2. The power supply terminal Vcc and the ground terminal G supply a power supply voltage to the sound processing circuit 9638 and the booster circuit 9654, and the booster circuit 9654 supplies boosted power to the amplifier 9640. The sound processing circuit 9638 includes an EEPROM 9638a that stores a constant or a processing table for equalizing to obtain a vibration as a suitable cartilage conduction vibration source. These constants or processing tables are basically written in the EEPROM 9638a when the piezoelectric bimorph module 9625 is shipped, but can be written after being incorporated in the mobile phone 9601. The audio signal input to the audio processing circuit 9638 from the input terminals IN1 and IN2 is input to the amplifier 9640 after the audio processing, and the metal plate 9697 and the counter electrode 9698a serving as a common electrode are output from the output terminals OUT1 and OUT2 of the amplifier 9640, respectively. 9699a.

  FIG. 160 is a cross-sectional view illustrating a configuration for mass-producing the piezoelectric bimorph module according to Example 100. 158 are denoted by the same reference numerals and description thereof will be omitted unless necessary. 158. Further, in order to avoid complication, some of the parts already described with reference to FIG. FIGS. 160 (A) and 160 (B) conceptually show the same structure as FIG. 158 (A), but in actual dimensions, mobile phone 9601 shown in FIG. 160 (A). Is wider than the mobile phone 9601 shown in FIG. 160 (B). (Note that FIG. 160B illustrates an example in which the package portion 9625a is arranged near the rear surface side of the upper portion of the mobile phone 9601. However, the structure of the piezoelectric bimorph module 9625 alone does not change. Does not have any immediate relationship. The arrangement will be described separately later.)

  Although the widths of the mobile phones 9061 in FIGS. 160A and 160B are different as described above, the length of the package portion 9625a and the internal configuration thereof are common to each other as indicated by dashed lines 9625c and 9625d. . By standardizing the package portion 9625a in this manner, various types of mobile phones can be provided simply by changing the length of the metal plate 9697 protruding from the package portion 9625a and the bent state of the bent portions 9697a and 9697b and the support portions 9697c and 9697d. It is possible to respond. Note that FIGS. 160A and 160B illustrate the case where the width of the mobile phone 9601 is different, but the sizes of the elastic bodies 4263a and 4263b are different depending on the mobile phone even when the width of the external appearance is the same. In some cases. Even in such a case, by standardizing the package portion 9625a as described above, the length of the metal plate 9697 and the bending state of the bent portions 9697a and 9697b and the bent portions 9697c and 9697d can be changed to change the size of the elastic body. 4263a and 4263b can be supported.

  In addition, in order to hear the air conduction sound generated from the vibrating portion 9625b when the conventional way of listening according to FIG. It may be provided that. FIG. 160A shows a design in which an air conduction sound passing hole 9601b is provided in the vicinity of the vibrating portion 9625b as an example of such a case for reference. The hole 9601b may be the same as that provided for a normal air conduction speaker.

  Here, the arrangement of FIG. 160B is supplemented. As described above, depending on the design of the mobile phone 9601, by disposing the piezoelectric bimorph module 9625 upside down, the package portion 9625a can be arranged close to the upper surface of the mobile phone 9601 near the rear surface side. FIG. 160B shows this in detail. In this case, an empty space can be secured on the front surface side (GUI display portion 3405 side) of the upper part of the mobile phone 9601 as shown in the figure. . With this arrangement, as described above, the layout such that the package portion 9625a does not disturb components arranged on the front surface side of the mobile phone 9601 such as the inner camera.

  FIG. 160C shows a thin package portion including a vibrating portion 9625b without bending a metal plate 9697 protruding from the package portion 9625a in a piezoelectric bimorph module 9625 having the same package portion 9625a as described above. The 9625a is arranged near the upper surface of the mobile phone 9601 (close to the GUI display portion 3405). Such a design is possible if the position of the package portion 9625a and the support structure by the elastic members 4263a and 4263b allow. As described above, the configuration for standardizing the package portion 9625a is applicable to various mobile phones regardless of whether or not the metal plate 9697 is bent. Note that in the case of support as in FIG. 160C, if the width of the mobile phone 9601 is small and the metal plate 9697 is too long, both ends thereof may be cut as appropriate.

  FIG. 160D and FIG. 160E show a standard product of the piezoelectric bimorph module 9625 in which the above-described package portion 9625a is standardized, and not only the package portion 9625a but also a metal projecting from the package portion 9625a. The plate 9697 is also mass-produced with the same length. At this time, the length of the metal plate 9697 protruding from the package portion 9625a is set to be sufficiently long so as to be compatible with various mobile phones in consideration of the case of bending. Then, when the metal plate 9697 is not bent according to customer needs, as shown in FIG. 160D, unnecessary portions 9697e and 9697f of the metal plate 9697 are cut and customized and provided in the next step. On the other hand, in the case of bending the metal plate 9697, as shown in FIG. 160 (E), according to customer needs, in the next step, unnecessary portions of the metal plate 9697 are cut, and the bent portions 9697a and 9697b and the support portion 9697c are cut. , 9697d, customized and provided. Note that an unprocessed standard product in the state of FIG. 160 (D) or FIG. 160 (E) may be provided depending on customer needs.

  The various features of each embodiment described above are not limited to the individual embodiments, but can be replaced or combined with the features of other embodiments as appropriate. For example, Embodiment 100 shows a case where the piezoelectric bimorph module is supported at both ends by an elastic body at both corners of the upper part of the mobile phone. The feature of providing a space is useful not only in the case of supporting at both ends with an elastic body, but also in the case of supporting with a hard supporting portion or the case of cantilevering. Further, the features of the thin circuit integrated module shown in the embodiment 100 and the standardization thereof are not limited to the embodiment 100 but can be applied to various embodiments.

  FIG. 161 is a block diagram related to Example 101 according to the embodiment of the present invention, and is configured as a mobile phone based on cartilage conduction. Although the detailed configuration is the same as that of the embodiments described above, in FIG. 161, parts that are not directly related to the description are shown by rough blocks in order to avoid complexity, and the detailed description is omitted.

  The embodiment 101 in FIG. 161 includes an application processor 9739 and a power management circuit 9753 in a normal mobile phone 9701. The application processor 9739 controls the entire mobile phone 9701 including the main part 9745 of the mobile phone. The power management circuit 9753 supplies power to the entire mobile phone 9701 in cooperation with the application processor 9739. The analog output amplifier 9740 drives the piezoelectric bimorph element 9725 serving as a cartilage conduction vibration source based on the sound output output from the application processor 9739 and processed by the sound processing circuit 9738. Then, the power management circuit 9753 supplies drive power to the analog output amplifier 9740 via the booster circuit 9754. The details of such a configuration are basically common to the embodiment 72 shown in FIG. 107 and the embodiments 74 to 76 shown in FIGS. 114 to 116.

  In the embodiment 101 of FIG. 161, a signal in an audio frequency range for driving the piezoelectric bimorph element 9725 is passed between the analog output amplifier 9740 and the piezoelectric bimorph element 9725, but the piezoelectric element is dropped by the impact of the cellular phone 9701 or the like. A low-pass filter 9740a that cuts a high-frequency shock pulse generated by the bimorph element 9725 is provided.

  The piezoelectric bimorph element 9725 is provided at a corner 9701d, which is a suitable portion to be applied to the otocartilage such as the tragus as in the other embodiments. However, as described above, the corner 9701d is also a part to which a direct impact is likely to be applied when falling. Incidentally, since the piezoelectric bimorph element 9725 is deformed according to the applied voltage, it is used as an output element for generating cartilage conduction vibration by applying an audio signal 9725a using this property, but conversely, it is used as an external element. It also functions as an electromotive element that generates a voltage when deformed from. Then, a shock such as a drop generates a high-frequency shock pulse 9725b from the piezoelectric bimorph element 9725, and when this flows back to the output of the analog output amplifier 9740, the analog output amplifier 9740 may be destroyed.

  The low-pass filter 9740a is provided between the analog output amplifier 9740 and the piezoelectric bimorph element 9725 to prevent such a situation. If the low-pass filter 9740a is not provided, it is prevented from being transmitted to the analog output amplifier 9740 as indicated by an imaginary line 9725c. As described above, the low-pass filter 9740a allows the signal signal 9725a in the audio frequency range for driving the piezoelectric bimorph element 9725 to pass.

  Generally, the sampling frequency of an AD converter in a mobile phone is 8 kHz, and the sampling frequency can be up to 4 kHz. Therefore, the handled audio signal is suppressed to about 3.4 kHz. Further, as described with reference to FIG. 132 and the like, in the frequency characteristics of the ear cartilage, the transmission efficiency of vibration decreases from around 3 kHz to a high frequency band. Therefore, by adopting a low-pass filter 9740a that specifically passes a frequency of about 4 kHz or less, there is no problem in driving the piezoelectric bimorph element 9725, and a high-frequency band generated from the piezoelectric bimorph element 9725 due to an impact such as dropping. Can be cut off.

  The sampling frequency of PHS and IP telephones is 16 kHz, and can be quantized up to 8 kHz, so that the audio signal handled is about 7 kHz. In addition, as described above, in the broad sense of cartilage conduction, not only cartilage air conduction but also direct air conduction contributes to vibration of the eardrum. In fact, when the ear canal closing effect does not occur, the piezoelectric bimorph element 9725 is used. It is also possible to widen the frequency range of the sound that can be heard by direct air conduction from the air. In this case, the piezoelectric bimorph element 9725 is vibrated in a region up to about 7 kHz handled by PHS or IP telephone. Further, in the future, from the improvement of data communication rate, cartilage conduction in a broad sense is also expected in mobile phones in consideration of direct air conduction components. Can be Therefore, in order to cope with this case, specifically, a low-pass filter 9740a that passes about 8 kHz or less is adopted. Accordingly, a configuration is possible in which the piezoelectric bimorph element 9725 is driven by an audio signal having a sampling frequency of 16 kHz. Note that the high-frequency shock pulse 9725b generated from the piezoelectric bimorph element 9725 by a shock such as a drop has a higher frequency region as a main component, and thus can be substantially cut.

  FIG. 162 is a block diagram of a first modification of the embodiment 101 shown in FIG. 161. The same reference numerals are given to the same parts as in FIG. 161 and the description is omitted. The first modified example in FIG. 162 is provided with a tap detecting section 9742 for using the piezoelectric bimorph element 9725 as a shock input element for detecting a tap to the mobile phone 9701. Such a configuration has also been described in the twenty-seventh embodiment using FIGS. 41 to 43. That is, in such a configuration, by tapping (touching) the display screen of the mobile phone 9701 or an arbitrary portion of the housing with a finger, a determination input of a GUI operation is performed as in a “click” of a mouse or the like in a personal computer. be able to.

  The tap detection unit 9742 detects the impact 9725d of the tap by the finger via the low-pass filter 9740a, and transmits this to the application processor 9739 to determine and input the GUI operation. For this reason, the low-pass filter 9740a is selected to pass the main frequency band of the impact 9725d due to the tap of the finger and the band of the audio signal 9725a, and to cut the impact pulse 9725b such as a drop in the higher main frequency band. .

  FIG. 163 is a block diagram of a second modified example of the embodiment 101 shown in FIG. 161. In FIG. 163, the same parts as those in FIG. 161 or FIG. In the second modified example in FIG. 163, the position at which the tap detecting section 9742a is provided is different from that in the first modified example in FIG. The same is true in that a GUI operation determination input is performed by transmitting the detected tap impact 9725d to the application processor 9739. The low-pass filter 9740a in this case is selected so as to allow the band of the audio signal 9725a to pass in the same manner as in the embodiment of FIG.

  Note that the tap detecting section 9742a in the second modification of FIG. 163 identifies the strength of the impact from the piezoelectric bimorph element 9725, and the strength identifying section 9742b that eliminates the impact of a predetermined strength or more as a result of dropping and a floor or wall. A spectrum identification unit 9742c is provided for identifying the difference in spectrum between the collision with the finger and the impact of the tap with the finger, and eliminating the former having a large proportion of high-frequency components higher than a predetermined value, so that the impact due to the collision is not mistaken as a finger tap. Like that.

  Preferable examples of the low-pass filter 9740a employed in the embodiment 101 and its modifications in FIGS. 161 to 163 are an RC filter including a resistance component and a capacitance component or an LC filter including an inductance component and a capacitance component. In these embodiments and their modifications, the low-pass filter 9740a is used for the high-frequency shock pulse 9725b generated from the piezoelectric bimorph element 9725 due to the impact of dropping or the like. The configuration is not limited to the above configuration as long as it serves as a backflow prevention unit that prevents the power from flowing back to the analog output amplifier 9740.

  Further, in the embodiment 101 and the modified examples thereof in FIGS. 161 to 163, the setting of the cartilage conduction part and the cause of collision with the piezoelectric bimorph element 9725 are described only for the right corner in the figure for simplicity. It is preferable that the setting of the cartilage conduction portion and the cause of collision with the piezoelectric bimorph element 9725 be both right and left angles in the same manner as in the embodiment. At this time, the arrangement of the piezoelectric bimorph element 9725 may be at the center of both corners as in the embodiment 46 in FIG. 69 or may be at one corner as in the embodiment 64 in FIG. In either case, both left and right angles can cause a collision. Further, the embodiment 101 and its modification can be applied to the case where the piezoelectric bimorph elements are arranged at both right and left corners as in the embodiment 68 of FIG. 100. In this case, the left and right piezoelectric bimorph elements are mutually connected. Since they can be controlled independently, a low-pass filter is provided between each piezoelectric bimorph element and each output section of the analog output amplifier.

  FIG. 164 is a partially omitted detailed circuit diagram in the case where the features of the embodiment 101 of FIG. 161 are applied to the combination circuit of the booster circuit section and the analog output amplifier section shown in FIG. That is, FIG. 164 is largely the same as FIG. 155, so that all of the booster circuit portion and part of the analog output amplifier portion are omitted from the drawing, and the same portions need not be assigned the same numbers. Description is omitted as far as possible.

  FIG. 164 (A) shows that the low-pass filter 9740a in FIG. 161 is provided between the analog amplifier 7040 (corresponding to the analog output amplifier 9740 in FIG. 161) and the piezoelectric bimorph element 7013 (corresponding to the piezoelectric bimorph element 9725 in FIG. 161). And shows a case where the low-pass filter 9740a is an RC filter including a resistance component and a capacitance component. As apparent from FIG. 164 (A), the RC filter is connected between OUT2, which is the output of CH2 of the analog amplifier unit 7040, and the first terminal of the piezoelectric bimorph element 7013, and OUT3, which is the output of CH4 of the analog amplifier unit 7040. , And between the second terminals of the piezoelectric bimorph element 7013.

  FIG. 164 (B) similarly shows a case where the low-pass filter 9740a is an LC filter including an inductance component and a capacitance component. As is clear from FIG. 164 (A), also in the case of the LC filter, the output from the output terminal CH2 of the analog amplifier unit 7040 to the first terminal of the piezoelectric bimorph element 7013 and the output of the analog amplifier unit 7040 from the channel CH4. It is provided between a certain OUT3 and the second terminal of the piezoelectric bimorph element 7013, respectively.

  FIG. 165 is a block diagram related to Example 102 according to the embodiment of the present invention, and is configured as a cartilage conduction vibration source device for a mobile phone. Since the embodiment 102 has many parts common to the embodiment 82 of FIG. 122, the common parts are denoted by the same reference numerals and description thereof will be omitted unless necessary. The embodiment 102 of FIG. 165 is different from the embodiment 82 of FIG. 122 in the configuration of the digital sound processing circuit 9838 in the driver circuit 9803.

  More specifically, in the digital acoustic processing circuit 9838 in FIG. 165, the digital audio signal output from the application processor 9839 is input to the external auditory canal closing effect equalizer 9838a, the cartilage conduction equalizer 9838b in a broad sense, and the air conduction equalizer 9838c. You. Then, based on an instruction from the application processor 9839, the switching circuit 9538d inputs any output to the DA converter 7138c. The output of the air-conduction equalizer 9838c is transmitted to the speaker 9851 via the switch 9851a based on an instruction from the application processor 9839. The switch 9851a is normally open, but is closed when the piezoelectric bimorph element 7013 is not vibrated, and performs ringtones and various kinds of guidance and outputs the other party's voice during a videophone call.

  The broad cartilage conduction equalizer 9838b is selected when the mobile phone is in contact with the ear cartilage when the ear canal is open. As described above, cartilage conduction in a broad sense is strictly composed of cartilage air conduction, cartilage bone conduction and direct air conduction, and substantially cartilage air conduction and direct air conduction are dominant. Generally speaking, cartilage air conduction is dominant in the low range, and direct air conduction is dominant in the high range.

  The broadly-defined cartilage conduction equalizer 9838b equalizes the audio signal so that the piezoelectric bimorph element 7013 generates a vibration in which the frequency characteristic of the sound pressure in the external auditory canal becomes flat as a result of the broadly-defined cartilage conduction. Incidentally, when only the direct air-conducted sound of the piezoelectric bimorph element 7013 vibrated by the equalization by the broadly-defined cartilage conduction equalizer 9838b is measured, the high-frequency range emphasis is equalized.

  Next, the air-conduction equalizer 9838c equalizes the audio signal so that the piezoelectric bimorph element 7013 generates vibration such that the frequency characteristic of the sound pressure due to only the direct air-conduction component becomes flat. Specifically, when the sound pressure of the air conduction sound generated from the cartilage conduction part 9824 is directly measured, or when the sound pressure in the external auditory canal is measured without the cartilage conduction part 9824 contacting the ear cartilage, the frequency characteristic is It is an equalization that becomes flat. This means equalization for evaluating that the cartilage conduction part 9824 is functioning normally as a conventional air conduction speaker. Incidentally, when the cartilage conduction part 9824 is brought into contact with the ear cartilage in a state where the ear canal is opened in a state where the piezoelectric bimorph element 7013 is vibrated by the equalization by the air-conducting equalizer 9838c, and the sound pressure in the ear canal is measured (that is, the cartilage in a broad sense). (Measured in the state of conduction), the treble lacks equalization.

  Further, the ear canal closing effect equalizer 9838a generates vibration in the piezoelectric bimorph element 7013 in which the frequency characteristic of the sound pressure in the ear canal becomes flat in a state where the ear canal closing effect (same as the “ear plug bone conduction effect”) occurs. Equalize the audio signal. In this case, the equalization basically takes into account the characteristics of cartilage air conduction. By the way, in the state where the piezoelectric bimorph element 7013 is vibrated by the equalization of the ear canal closing effect equalizer 9838a, the pressing force is weakened while the cartilage conduction part 9824 is in contact with the ear cartilage to open the ear canal entrance, and the sound in the ear canal is opened. When the pressure is measured (that is, when the measurement is made in a broadly defined cartilage conduction state), the treble lacks equalization.

  As a structure for generating a sufficient direct air conduction sound from the piezoelectric bimorph element 7013 when the broadly-defined cartilage conduction equalizer 9838b or the air conduction equalizer 9838c functions, the embodiment 88 shown in FIGS. As in the modification, it is preferable that the vibration of the electromagnetic vibrator 8225 is transmitted from the upper frame 8227 to the front plate 8201a, and the upper end side of the front plate 8201a is vibrated with a relatively large area. Further, as in a modification of the embodiment 100 shown in FIG. 160 (A), the vibrating part 9625b is arranged near the ear by moving the vibrating part 9625b to the front surface side of the upper part of the mobile phone, and the air conduction sound passing hole 9601b is vibrated. The configuration provided near the portion 9625b is also suitable for generating a sufficient direct air conduction sound.

  Further, the equalization of the ear canal closing effect equalizer 9838a, the cartilage conduction equalizer 9838b in a broad sense, and the air conduction equalizer 9838c are not characteristics of the piezoelectric bimorph 7013 alone, but are combined with the cartilage conduction part 9824 (set at the corner of the mobile phone). Is set so that the occurrence of cartilage conduction and air conduction in the state of being incorporated into the target is a target value.

  FIG. 166 is a flowchart illustrating functions of the application processor 9839 in the embodiment 102 in FIG. 165. In order to explain the function of the driver circuit 9803, the flow of FIG. 123 extracts and illustrates an operation focusing on related functions, and the flow of FIG. 166 shows the functions of a general mobile phone and the like. There is no application processor 9839 operation. The flow in FIG. 166 starts when the main power supply of the mobile phone is turned on. In step S602, the initial startup and the function check of each unit are performed, and the screen display on the display unit of the mobile phone is started. Next, in step S604, the functions of the cartilage conduction unit and the transmitting unit of the mobile phone are turned off, and the process proceeds to step S606.

  In step S606, it is checked whether the air conduction test mode has been set. If the air conduction test mode setting is not detected, the process proceeds to step S608, and it is checked whether or not a call is being made by a mobile phone based on a response from the other party to the call or an incoming call from the other party. If it is in a call state, the process proceeds to step S610, where the cartilage conduction unit and the transmitting unit are turned on, and the process proceeds to step S612.

  In step S612, it is checked whether or not the setting of the air conduction mode has been performed. If the setting has not been performed, the process proceeds to step S614. In step S614, it is checked whether or not the ear canal closing effect is occurring. If there is no such effect, the process proceeds to step S616, and the process proceeds to step S618 without adding a signal obtained by inverting the waveform of the own voice. The presence / absence of the self-voice waveform inversion signal has been described in steps S52 to S56 in the flow of FIG. In step S618, the broadly defined cartilage conduction equalizer 9838b is selected, and the flow advances to step S620.

  On the other hand, when the ear canal closing effect occurrence state is detected in step S614, the process shifts to step S622 to add a self-voice waveform inversion signal, and selects the ear canal closing effect equalizer 9838a in step S624, and shifts to step S620. If it is detected in step S612 that the air conduction mode has been set, the flow shifts to step S626, selects the air diffusion equalizer 9838c, and shifts to step S620.

  In step S620, it is checked whether or not the call is disconnected. If not, the process returns to step S612, and thereafter, steps S612 to S626 are repeated unless the call is disconnected. Thus, even during a call, the selection of the external auditory canal closing effect equalizer 9838a, the broadly defined cartilage conduction equalizer 9838b, and the air conduction equalizer 9838c can be changed in response to changes in settings and situations. On the other hand, when it is detected in step S620 that the call has been disconnected, the process proceeds to step S628, in which the functions of the cartilage conduction unit and the transmitting unit of the mobile phone are turned off, and the process proceeds to step S630.

  On the other hand, when the setting of the air conduction test mode is detected in step S606, the flow shifts to step S632 to select the air conduction equalizer 9838c. Next, in step S634, the cartilage conduction part is turned on, and the flow shifts to step S636 to perform an air conduction test process. The air conduction test process is a process of automatically generating audio signals of each frequency sequentially based on a predetermined sound source data and vibrating the piezoelectric bimorph element 7013 based on the equalization of the air conduction equalizer 9838c. This is to test whether the equalization of the air-conducting equalizer 9838c is appropriate by measuring the direct air-conduction with a microphone or the like. When the air conduction test process ends, the flow shifts to step S638 to turn off the cartilage conduction part, and shifts to step S630. If no call state is detected in step S608, the process immediately proceeds to step S630.

  In step S630, it is checked whether or not the main power of the mobile phone is turned off. If the main power is not turned off, the process returns to step S606. Repeat according to. On the other hand, if main power off is detected in step S630, the flow ends.

  Next, the function of the equalizer in the digital sound processing circuit 9838 in the embodiment 102 in FIGS. 165 and 166 will be described with reference to FIG. FIGS. 167 (A) to 167 (C) are image diagrams of the frequency characteristics of the piezoelectric bimorph element, and FIG. 167 (C) illustrates the frequency characteristics of the piezoelectric bimorph element, respectively, when the piezoelectric bimorph element is brought into contact with the ear cartilage. FIG. 9 is an image diagram of a frequency characteristic of a vibration acceleration level and an image diagram of equalizing a drive output to a piezoelectric bimorph element.

  FIG. 167 (A) is the same as FIG. 132 (A), and shows that the frequency characteristics of the piezoelectric bimorph element are substantially flat up to about 10 kHz. FIG. 167 (B) is also the same as FIG. 132 (B), and the frequency characteristic of the vibration acceleration level of the ear cartilage when the piezoelectric bimorph element is brought into contact with the ear cartilage is shown in FIG. Even in a band of 1 kHz or less where the vibration is relatively weak, a large vibration acceleration level comparable to the band of 1 to 2 kHz is exhibited, but the vibration acceleration level is reduced from around 3 kHz to a high frequency band.

  On the other hand, in the image diagram of the equalization of the drive output to the piezoelectric bimorph element in FIG. 167 (C), the image of the gain change due to the frequency of the ear canal closing effect equalizer 9838a is shown by a broken line, and the gain by the frequency of the broad sense cartilage conduction equalizer 9838b is shown by a solid line. An image of the change is indicated by a dashed line, and an image of a gain change according to the frequency of the air-conducting equalizer 9838c.

  FIG. 167 (D) shows an image of the measured sound pressure when the external auditory canal closing effect equalizer 9838a shown by the broken line in FIG. 167 (C) is equalized. As shown by the broken line in FIG. 167 (D), the sound pressure in the ear canal measured in the closed state of the ear canal entrance is almost flat as intended. On the other hand, in this equalization, the sound pressure in the ear canal measured with the ear canal entrance open is excessive as shown by the solid line in FIG. 167 (D) in the high range. In this equalization, the sound pressure of only direct air conduction measured outside the ear is further excessive in the high frequency range as shown by the dashed line in FIG. 167 (D).

  FIG. 167 (E) shows an image of the measured sound pressure when equalizing the broad sense cartilage conduction equalizer 9838b shown by the solid line in FIG. 167 (C). As shown by the solid line in FIG. 167 (E), the sound pressure in the ear canal measured with the ear canal entrance open is almost flat as intended. On the other hand, in this equalization, the sound pressure in the ear canal measured in the closed state of the ear canal entrance is insufficient in the high frequency range as shown by the broken line in FIG. 167 (E). On the other hand, in this equalization, the sound pressure of only direct air conduction measured outside the ear is excessive in the high frequency range as shown by the dashed line in FIG. 167 (E).

  FIG. 167 (F) shows an image of the measured sound pressure when the air-conducting equalizer 9838c shown by the one-dot chain line in FIG. 167 (C) is equalized. As shown by the one-dot chain line in FIG. 167 (F), the sound pressure of only direct air conduction measured outside the ear is almost flat as intended. On the other hand, in this equalization, the sound pressure in the ear canal measured with the ear canal entrance open is insufficient in the high range as shown by the solid line in FIG. 167 (F). In this equalization, the sound pressure in the external auditory canal measured with the external auditory canal entrance closed is further insufficient in the high frequency range as shown by the broken line in FIG. 167 (F).

  The graph shown in FIG. 167 conceptually shows a general tendency in order to avoid complexity and facilitate understanding. A small sound pressure insufficiency area and an excessive area in response to the equalization that has occurred are generated. However, even if equalization is performed based on any of the states, such a small sound pressure insufficiency region and an excess region occur, so it is meaningless to make the frequency characteristics of the reference equalization strict. It is realistic to perform equalization according to the rough tendency as shown.

  As described above, the measured values in FIGS. 167 (D) to (F) are not characteristics based on the vibration of the piezoelectric bimorph 7013 alone, and the piezoelectric bimorph 7013 is coupled to the cartilage conduction part 9824 to be used in a mobile phone. It is a measurement of the state of generation of cartilage conduction and air conduction in the assembled state. Therefore, the gain setting in FIG. 167 (C) aims at obtaining the measurement values of FIG. 167 (D) to (F) in a state where the piezoelectric bimorph 7013 is combined with the cartilage conduction part 9824 and incorporated in a mobile phone. Is set.

  In FIG. 167 (D) to FIG. 167 (F), the region where the intended flat sound pressure is to be obtained is at least 300 Hz to 3.4 kHz when the sampling frequency is 8 kHz. When the sampling frequency is 16 kHz, the frequency is at least 300 Hz to 7 kHz.

  The implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, in the embodiment 102 of FIG. 165, when the air-conducting equalizer 9838c is selected, both the piezoelectric bimorph element 7013 and the speaker 9851 have frequency characteristics as an air-conducting speaker, so that the air-conducting equalizer 9838c is also used. However, since the piezoelectric bimorph element 7013 and the loudspeaker 9851 have different structures, when an optimal frequency characteristic as an air-conducting speaker is to be obtained, a dedicated equalizer for the loudspeaker 9851 is employed without using the air-conducting equalizer 9838c. Is also good.

  FIG. 168 is a perspective view and a cross-sectional view of Example 103 according to the embodiment of the present invention, which is configured as a mobile phone 9901. The embodiment 103 has many points in common with the embodiment 88 of FIG. 136. Therefore, corresponding portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. In addition, since the internal configuration of the mobile phone 9901 can be understood by diverting other embodiments such as the embodiment 55 in FIG. 84, description thereof will be omitted. The embodiment 103 in FIG. 168 differs from the embodiment 88 in FIG. 136 in that the electromagnetic air conduction speaker 9925 is also used as a cartilage conduction vibration source. By the way, also in the embodiment 88 of FIG. 136, the electromagnetic vibrator 8225 serving as a cartilage conduction vibration source vibrates the upper end side of the front plate 8201a with a relatively large area, and the air conduction sound of a required level for a mobile phone is usually obtained. Is generated so that both cartilage conduction and air conduction sound can be generated. On the other hand, in the embodiment 103 of FIG. 168, first, the electromagnetic air conduction speaker 9925 is configured to generate a required level of air conduction sound in the ordinary mobile phone, and the vibration is diverted to the cartilage conduction part 8224 and By transmitting it to the 8226, it is possible to generate both air conduction sound and cartilage conduction.

  Hereinafter, the embodiment 103 will be described in detail with reference to FIG. 168. As shown in FIG. And constitute a normal receiver. As is apparent from FIG. 168 (B), which is a cross-sectional view taken along the line B1-B1 of FIG. Pedestal. As a result, the reaction of the electromagnetic air conduction speaker 9925 vibrating to generate air conduction sound is transmitted to the upper frame 8227, and the cartilage conduction portions 8224 and 8226 are vibrated.

  FIG. 168 (C), which is a top view of FIG. 168 (A), shows the hanging part 8227a inside and the electromagnetic air conduction speaker 9925 provided with the hanging part 8227a as a pedestal. Since the electromagnetic air conduction speaker 9925 is not in contact with any part other than the hanging part 8227a, the reaction of the vibration is transmitted only to the upper frame 8227 via the hanging part 8227a. In FIG. 168 (C), a hole 9901b for passing air conduction sound provided in front of the electromagnetic air conduction speaker 9925 on the front plate 8201a is also indicated by a broken line.

  FIG. 168 (D), which is a sectional view taken along line B2-B2 shown in FIGS. 168 (A) to 168 (C), shows that the hanging portion 8227a is integrated with the upper frame 8227, and the hanging portion 8227a is used as a base. This indicates that a shaped air conduction speaker 9925 is provided. In addition, the front plate 8201a is provided with a hole 9901b for passing air conduction sound in front of the electromagnetic air conduction speaker 9925. 168 (D) also shows that the electromagnetic air conduction speaker 9925 is not in contact with any part other than the hanging part 8227a.

  FIG. 168 (E) is a cross-sectional view taken along line B3-B3 of FIG. 168 (B), showing a hanging part 8227a inside, an electromagnetic air conduction speaker 9925 provided with the hanging part 8227a as a pedestal, and an electromagnetic air conduction speaker. Air conduction sound passing holes 9901b provided in the front plate 8201a in front of the 9925 are indicated by broken lines.

  FIG. 169 is an enlarged sectional view of a main part of FIG. 168 (D) in the embodiment 103, and shows an internal structure and a holding structure of the electromagnetic air conduction speaker 9925. FIG. 169 has many points in common with the embodiment 48 of FIG. 73, and the corresponding portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. An electromagnetic air conduction speaker 9925 in the embodiment 103 of FIG. 169 is different from the electromagnetic vibrator 4324a in the embodiment 48 of FIG. The point is that the reaction of the vibration is used for cartilage conduction.

  Hereinafter, the internal structure and the holding structure of the electromagnetic air conduction speaker 9925 in the embodiment 103 will be specifically described based on FIG. The electromagnetic air conduction speaker 9925 is roughly divided into two parts. First, as a first part, a yoke 4324h holding a magnet 4324f and a central magnetic pole 4324g is fixedly supported by a hanging part 8227a. A top plate 4324j having a gap is fixed to this structure.

  On the other hand, as a second part, a voice coil 4324m is wound around a voice coil bobbin fixed to the diaphragm 9924k, and enters the gap of the top plate 4324j. A weight ring 9324n is provided around the diaphragm 9924k to increase the inertia of the entire diaphragm 9924k. The integral structure of the diaphragm 9924k and the second part including the voice coil bobbin, the voice coil 4324m and the weight ring 9924n fixed thereto is connected to the first part yoke 4324h in a suspended state by a damper 9924i. In this configuration, when an audio signal is input to the voice coil 4324m, a relative movement occurs between the first portion including the yoke 4324h and the second portion including the diaphragm 9924k, and the diaphragm 9924k vibrates. Air conduction sound is generated through the air conduction sound passing hole 9901b. On the other hand, the first portion including the yoke 4324h also vibrates due to the reaction of the vibration of the second portion including the diaphragm 9924k and the like, and this vibration is transmitted from the upper frame 8227 to the cartilage conduction portions 8224 and 8226 via the hanging portion 8227a. . As described above, by utilizing the reaction of the vibration of the electromagnetic air conduction speaker 9925 for generating the air conduction sound as the vibration source of the cartilage conduction, both the generation of the air conduction sound and the cartilage conduction can be performed. It is a configuration that

  FIG. 170 is a perspective view and a cross-sectional view of Example 104 according to the embodiment of the present invention, which are configured as a mobile phone 10001. The embodiment 104 has many points in common with the embodiment 65 of FIG. 97, and the corresponding portions are denoted by the same reference numerals and the description thereof will be omitted unless necessary. Further, the internal configuration of the mobile phone 10001 can be understood by diverting other embodiments such as the embodiment 55 in FIG. The embodiment 104 of FIG. 170 differs from the embodiment 65 of FIG. 97 in that the piezoelectric bimorph element 2525 is configured as an air conduction speaker and also serves as a cartilage conduction vibration source. That is, the concept of the embodiment 103 in FIG. 169 is applied to the case of the air conduction speaker.

  Hereinafter, the embodiment 104 will be described in detail with reference to FIG. 170. As shown in FIG. 170 (A), a hole 10001b for passing air conduction sound is provided on the upper surface of the mobile phone 10001. This is similar to the embodiment 103 of FIG. As is apparent from FIG. 170B, which is a cross-sectional view taken along line B1-B1 in FIG. 170A, one end 2525c of the piezoelectric bimorph element 2525 is held by the cartilage conduction part 6124 for the right ear. As a result, the other end 2525b of the piezoelectric bimorph element 2525 becomes a free vibration end, but a diaphragm 10024k is attached in order to generate air conduction sound effectively. In FIG. 170B, the air conduction sound passage hole 10001b shown in FIG. 170A is shown by imaginary lines for reference to understand the positional relationship. As described above, the diaphragm 10024k vibrates near the inside of the air conduction sound passage hole 10001b. On the other hand, since the one end 2525c of the piezoelectric bimorph element 2525 is held by the cartilage conduction part 6124 for the right ear, the cartilage conduction part 6124 for the right ear vibrates favorably due to the reaction of the vibration of the free end. Further, the vibration of the cartilage conduction part for right ear 6124 is also transmitted to the cartilage conduction part for left ear 6126 via the connecting part 6127. These points are common to the embodiment 65 shown in FIG. With the above structure, in the embodiment 104 of FIG. 170 as well as in the embodiment 103 of FIG. 168, by supporting the air-conducting speaker with the cartilage conduction structure, the air-conducting speaker for generating the air-conducting sound is provided. The reaction of vibration is utilized as a source of cartilage conduction vibration. Since the piezoelectric bimorph element 2525 is supported only by the cartilage conduction part as described above and is not in contact with other components of the mobile phone 10001, the vibration is transmitted only to the cartilage conduction part.

  In FIG. 170C, which is a top view of FIG. 170A, a diaphragm 10024k attached to the free vibrating end 2525b of the piezoelectric bimorph element 2525 and holes 10001b for passing air conduction sound are indicated by broken lines. . Further, FIG. 170 (D), which is a cross-sectional view taken along line B2-B2 shown in FIGS. It is shown by a broken line for reference. As is clear from FIGS. 170 (C) and 170 (D), the piezoelectric bimorph element 2525 is provided so that the vibration plate 10024k can vibrate near the inside of the air conduction sound passage hole 10001b. This embodiment is arranged closer to the front side of the mobile phone 10001 than in the case of the 65th embodiment. In FIG. 170 (D), the reference illustration of the air conduction sound passage hole 10001b is omitted to avoid complication of the drawing.

  The implementation of the various features of the present invention is not limited to the above-described embodiment, but can be implemented in other embodiments. For example, FIG. 160A is a cross-sectional view illustrating a configuration for mass-producing a piezoelectric bimorph module in Embodiment 100, and illustrates a design in which a hole 9601b for passing air conduction sound is provided in the vicinity of a vibration portion 9625b. ing. In the structure of FIG. 160A, the support portions 9697c and 9697d of the metal plate 9697, which are both ends of the piezoelectric bimorph module 9625, are supported inside the elastic portions 4263a and 4263b. Are not in contact with each other, so that the vibration is transmitted only to the cartilage conduction part. Therefore, the structure as shown in FIG. 160A can be considered as a modification of the embodiment 103 shown in FIG. 168 or the embodiment 104 shown in FIG. Then, in the structure of FIG. 160A, if the arrangement space allows, the air conduction sound passing through the air conduction sound passage hole 9601b is generated more efficiently, so that the air conduction sound passage hole behind the air conduction sound passage hole 9601b is generated. The width of the metal plate 9697 may be increased to increase the area functioning as a diaphragm for generating air conduction sound.

  FIG. 171 is a block diagram of Example 105 according to the embodiment of the present invention, and is configured as a system including a mobile phone 11001 and stereo headsets 11081a and 11081b capable of short-range communication with the mobile phone. Note that the left headset 11081a and the right headset 11081b, which are stereo headsets, can be always worn on the left and right ears, respectively. That is, the stereo headsets 11081a and 11081b in the embodiment 105 open the ear holes 232 as in the embodiment 89 to the embodiment 92, the embodiment 98, and the embodiment 99 in FIG. 139 to FIG. 142, FIG. 153, and FIG. A configuration that can be used in a state is adopted. Even if the stereo headset is always worn on both ears, the sound of the outside world will not be difficult to hear as compared with the non-wearing state. Therefore, for example, the danger of hearing the horn of the vehicle or the like does not increase, and conversation with surrounding people can be enjoyed while the stereo headset is worn.

  The block diagram of the embodiment 105 in FIG. 171 has many configurations in common with the embodiment 87 in FIG. 135. Therefore, the same portions are denoted by the same reference numerals as in FIG. 135, and description thereof will be omitted unless particularly necessary. . For the sake of simplicity, for example, the internal configuration of the telephone function unit 45 is not illustrated in FIG. Although the internal structure of the right headset 11081b is omitted for simplicity, the right headset 11081b has the same configuration as the right headset 11081a except that there is no telephone microphone 11023.

  The embodiment 105 in FIG. 171 is different from the embodiment 87 in FIG. 135 in that the stereo headsets 11081a and 11081b are always attached to the ears for listening to music, and the ear holes 232 are used in an open state. Thus, various situations are being dealt with. First, on the mobile phone 11001 side, a digital music player unit 11084 is provided, and can be output from an external earphone jack 11046 via a voice input / output unit 11040. The voice input / output unit 11040 can further output a call sound signal from the telephone function unit 45 and a music signal from the music player unit 11084 from the wireless short-range communication unit 1446 to the left headset 11081a and the right headset 11081b.

  When outputting the call sound signal from the telephone function unit 45 from the short-range communication unit 1446, the equalizer 11036 of the voice input / output unit 11040 controls the cartilage conduction in the left headset 11081a and the right headset 11081b under the control of the control unit 11039. Cartilage conduction equalization suitable for driving the section 1626 and the like is performed. On the other hand, when the music signal from the music player unit 11084 is output from the short-range communication unit 1446 to the left headset 11081a and the right headset 11081b, the equalizer 11036 of the audio input / output unit 11040 controls the cartilage conduction under the control of the control unit 11039. Equalization is performed to increase the contribution of the air conduction component more than in the case of equalization, and the high range necessary for music appreciation is supplemented by direct air conduction sound from the cartilage conduction part 1626 and the like.

  The equalizer 11036 of the audio input / output unit 11040 further monitors a change in the sound signal (for example, a change in the sound intensity between fortissimo and pianissimo) during the music progression in the output from the music player unit 11084, and the sound signal is When the sound level falls below a predetermined level (the sound intensity shifts to the piano side in the music), the equalization is performed according to the progress of the music so that the former becomes relatively large in the mixing ratio of the cartilage conduction component and the direct air conduction component. Temporarily change.

  The above control has two meanings. The first meaning is a countermeasure against noise of a constant intensity irrespective of a change in the sound signal of the music. This noise is inconspicuous in the forte (strong) area of the music, but is noticeable in the piano (weak) area. Accordingly, in the forte region, the mixture ratio of the air conduction component is increased to realize music with good sound quality, and in the piano region, a cartilage conduction component that is strong in a low range is utilized, and the cartilage conduction component is relatively increased.

  The second meaning is a countermeasure against a change in the frequency characteristic of hearing with respect to the loudness of the sound. For example, as shown by the “Fletcher and Manson equal loudness curve”, it is known that the frequency characteristic change of the auditory sense is such that the lower the sound, the lower the sensitivity in the low frequency range. Then, the air conduction component is relatively increased, and the cartilage conduction component is increased in the piano region. In the piano region, the cartilage conduction component that is strong in the low range is enhanced to compensate for the decrease in sensitivity.

  Further, under the control of the control unit 11039, the voice input / output unit 11040 outputs a ringtone such as a ringtone to the left headset 11081a and the right headset when outputting the ringtone from the telephone function unit 45 from the short-range communication unit 1446. For example, the data is alternately output to 11081b every second. As a result, even when a ringtone is superimposed on the music being viewed, the ringtone can be heard alternately from left and right every second so that the user can easily notice the ringtone. The ring tone may be superimposed on the music signal being viewed, or the music signal to the headset that outputs the ring tone may be muted. In this case, the ringtone and the music signal are alternately heard from the left and right headsets every second.

  Further, when a call sound signal from the telephone function unit 45 is output from the short-range communication unit 1446 and a three-party call is made, the control unit 11039 controls, for example, the first party's voice to the left. While transmitting to the headset 11081a, the voice of the second partner is transmitted to the right headset 11081b. This allows the voices of the two opponents to be heard separately from the left and right ears. Details of the various functions of the mobile phone 11001 will be described later.

  On the other hand, the left headset 11081a has a passive mode and a self-sustained mode. In the passive mode, the sound of the equalized state as received by the short-range communication unit 1487a is sent to the mixer unit 1636 to drive the cartilage conduction vibration unit 1626. I do. In this case, equalizer 8238 does substantially nothing. In the independent mode, the equalizer 8238 normally performs cartilage conduction equalization under the control of the control unit 11039a. Then, when the control unit 11039a detects that the sound signal received by the short-range communication unit 1487a is music, the equalizer 8238 performs equalization to increase the contribution of the air conduction component as compared with the case of cartilage conduction equalization, and converts the signal to The cartilage conduction vibration unit 1626 is driven by being sent to the mixer unit 1636. Note that the call microphone 11023 has directivity centered on the mouth direction of the wearer of the left headset 11081a, and picks up the voice of the wearer and transmits the voice to the mobile phone 11001 from the short-range communication unit 1487a. To be transmitted to the unit 45.

  The environmental sound microphone 11038 of the left headset 11081a has a wide-angle directivity centered on the direction toward the ear of the wearer. The surrounding noise picked up by the environmental sound microphone 11038 is inverted by the waveform inverting unit 1640 and input to the mixer unit 1636. Thus, in the cartilage conduction vibration unit 1626, a vibration component is generated in which the waveform of the ambient noise is inverted in addition to the music signal being viewed. This vibration component reaches the eardrum by cartilage air conduction and direct air conduction, and cancels the surrounding noise due to the direct air conduction that also reaches the eardrum. As a result, it is possible to prevent the music being viewed from becoming difficult to listen to due to ambient noise that may reach the eardrum when the ear hole is used in an open state.

  However, if the ambient environmental sound is always canceled out, the meaning of the configuration in which the ear canal is opened and the external sound can be heard can be reduced by half. Accordingly, in the embodiment 105, under the control of the control unit 11039a, the cancellation of the environmental sound is stopped when any of the following conditions occurs. The first condition is a case where the ambient sound picked up by the ambient sound microphone 11038 increases rapidly. At this time, the cancellation of the ambient sound is stopped. This is to prevent a danger of overlooking the surrounding emergency sound, such as a vehicle horn, for example. The second condition is that the environmental sound microphone 11038 detects a human voice having a volume level equal to or higher than a predetermined level. At this time, the cancellation of the environmental sound is stopped. This is because, for example, the user can enjoy conversation with surrounding people while wearing a stereo headset and listening to music and the like, so that smooth communication can be achieved. However, regarding the second condition, the case where a ringtone is being received or the case where a mobile phone 11001 is in a call is an exception. In such a case, the cancellation of the environmental sound is continued. This is because it is considered that in such a situation, it is considered that the understanding can be obtained without appropriately responding to the speech from the surrounding people. Prioritize.

  In the embodiment 105 of FIG. 171, the left headset 11081a and the right headset 11081b respectively receive the audio signal from the mobile phone 11001, and are independently controlled by the respective control units 11039a (not shown in the right headset 11081b). It is configured to perform the processing described above. Therefore, the right headset 11081b can be understood according to the left headset 11081a, and the description is omitted. The various functions of the left headset 11081a will be described later in detail.

  FIG. 172 is an extended system block diagram of the embodiment 105 in FIG. 171. The mobile phone and the left and right stereo headsets are basically the same as those in FIG. In addition, in FIG. 172, regarding the headset, the names of the blocks are left first headset 11081a and right first headset 11081b to distinguish them from other stereo headsets described later.

  In the extension system shown in FIG. 172, a dedicated portable music player 11084b having a short-range communication unit 1446b is added. The left first headset 11081a and the right first headset 11081b can communicate with the mobile phone 11001 in the same manner as in FIG. 171, can receive music signals from the mobile music player 11084b, and When an incoming signal is received from the telephone 11001 or a call is started, the operation described with reference to FIG. 171 is performed, including the music signal from the portable music player 11084b. When the portable music player 11084b has a normal configuration, the first left headset 11081a and the first right headset 11081b are in the independent mode, and mainly the equalizer 8238 operates. Also, in the system as shown in FIG. 172, when the left first headset 11081a and the right first headset 11081b are in the independent mode, the mobile phone 11001 may be a normal mobile phone without a cartilage conduction equalizing function. Configuration is possible. When the portable music player 11084b has the same cartilage conduction equalizer 11036 and its control unit 11039 as in the mobile phone 11001, the left first headset 11081a and the right first headset 11081b operate in the passive mode. I do.

  The extension system shown in FIG. 172 further includes a call / sound source server 11084c having a short-range communication unit 1446c. The left first headset 11081a and the right first headset 11081b can communicate with the mobile phone 11001 and the portable music player 11084b, and can also communicate with the call / sound source server 11084c. Also during such communication with the call / sound source server 11084c, the left first headset 11081a and the right first headset 11081b are in the independent mode, and the equalizer 8238 mainly operates. When the call / sound source server 11084c has the same telephone call function and music reproduction function as in the mobile phone 11001 and includes an equalizer 11036 for cartilage conduction and its control unit 11039, the left first headset 11081a and right first headset 11081b function in a passive mode.

  Note that the call / sound source server 11084c is capable of communicating with a plurality of headsets within a short-distance communication area and delivering sound sources such as music. As an example in FIG. A second headset 11081c and a right second headset 11081d are shown. The details of the configuration of the left second headset 11081c and the right second headset 11081d are the same as those of the left first headset 11081a and the right first headset 11081b, and therefore description thereof is omitted.

  FIG. 173 is a flowchart of the operation of the control unit 11039 of the mobile phone 11001 in the embodiment 105 in FIG. The flow in FIG. 173 starts when the main power supply is turned on by the operation unit 9, and in step S642, an initial startup and a function check of each unit are performed. Next, in step S644, it is checked whether the headset mode (a mode in which the audio signal of the mobile phone 11001 is output to the left headset 11081a and the right headset 11081b) is set. If the headset mode is set, the process proceeds to step S646. . In step S646, it is checked whether the music player is turned on and the sound signal of the music is output.

  If it is detected in step S646 that the music player is on, the flow advances to step S648 to instruct the setting of an equalization in which the air conduction component is increased as compared with the cartilage conduction equalization, and the flow shifts to step S650. As a result, music reproduction close to the original sound is realized by compensating for the lack of a high frequency range in the frequency characteristics of cartilage conduction. In step S650, it is checked whether the sound signal of the music has fallen below a predetermined level (the sound intensity has shifted to the piano side in the music). If so, the flow shifts to step S652 to give an instruction to temporarily correct the equalization so that the cartilage conduction component is relatively increased by a predetermined ratio, and shifts to step S654. As described above, this has a meaning of a countermeasure against a noise in a low sound area and a countermeasure against a decrease in a bass range of the auditory sensitivity.

  On the other hand, if it is detected in step S650 that the sound signal of the music has not dropped below the predetermined level (the sound intensity has shifted to the forte side in the music), the flow directly proceeds to step S654, and the flow proceeds to step S648. Maintain equalization setting with increased air conduction component. As a result, in an area where the sound is loud, the high-frequency range is supplemented by the air-conducting component, and music reproduction close to the original sound is realized. If it is determined in step S646 that the music player has not been turned on, the flow advances to step S656 to instruct cartilage conduction equalization setting, and the flow advances to step S654. As will be described later, since steps S646 to S656 are repeated at a high speed, it is possible not only to turn on / off the music player but also to cope with a change in the volume of the sound between the forte side and the piano side during the music.

  Note that, for simplicity, the steps S650 and S652 are performed in two steps of determining whether or not the change in equalization is to increase the cartilage conduction component by a predetermined ratio for one criterion at a predetermined level. The level and the rate of increase of the cartilage conduction component are configured in a plurality of steps or are continuously changed in a stepless manner. In this case, the equalization is changed by a table that determines the determination level and the increase rate of the cartilage conduction component. The data in this table firstly indicates the significance of the above-described constant-intensity noise countermeasures and “Fletcher and Manson et al. Two types of tables are prepared according to the "loudness curve", and the final change in equalization is determined by combining the two tables.

  A step S654 checks whether or not there is an incoming call of the mobile phone. If there is an incoming call, the flow shifts to step S658 to generate a ring tone. At this time, if the music is being reproduced, the ringtone is superimposed on the sound signal of the music. As described above, the music signal may be muted while the ring tone is being generated instead of such superimposition. Next, in step S660, a process for alternately outputting the ringtone to the left headset 11081a and the right headset 11081b every predetermined time (for example, one second) is performed. As a result, as described above, the ringtone is superimposed (or singly) superimposed on the music being viewed, and is alternately heard from the left headset 11081a and the right headset 11081b.

  Next, in step S662, it is checked whether or not an operation of starting a telephone call in response to an incoming call (if music is being reproduced, the operation is also interrupted). If a call start operation is not detected, the flow returns to step S658. Unless a call is started thereafter, steps S658 to S662 are repeated, and alternate output of ring tones from left headset 11081a and right headset 11081b is continued. On the other hand, if a call start operation is detected in step S662, the flow moves to step S664 to instruct cartilage conduction equalization.

  Next, in step S666, it is checked whether or not the call is a three-party call. If so, the process proceeds to step S668 to separate the received voices of the other two parties. Then, the process proceeds to step S670 to perform a process of distributing and outputting the separated sound to the left headset 11081a and the right headset 11081b, and then proceeds to step S672. Thereby, the voices of the other two can be heard separately from the left and right ears as described above. On the other hand, if the three-way call is not confirmed in step S666, the process directly proceeds to step S672. In step S672, it is checked whether or not an operation of ending the call (if music reproduction is interrupted, the operation also restarts reproduction). If the call is not ended, the process returns to step S666, and thereafter, steps S666 to S672 are repeated until a call end operation is detected. During this time, if there is a switch between a three-party call and a normal two-party call, this corresponds. On the other hand, when the operation to end the call is detected in step S672, the process proceeds to step S674.

  On the other hand, if the headset mode is not detected in step S644, the flow shifts to step S676 to perform normal mobile phone processing, and shifts to step S674. The specific contents of step S676 have been variously described in other embodiments, and a description thereof will not be repeated. If no incoming call is detected in step S654, the process directly proceeds to step S674. In this case, the reproduction of music is continued as described later.

  In step S674, it is checked whether the main power supply has been turned off. If not, the flow returns to step S644. Hereinafter, steps S644 to S676 are repeated unless the main power supply is turned off. In this repetition, after there is no incoming call in step S654 or after the end of the call is detected in step S672, steps S644 to S652 are substantially repeated at a high speed. In addition to being able to respond to the on / off of the music player, if both are not present, music reproduction is continued, and it is possible to respond to a change in loudness between the forte side and the piano side during the music. On the other hand, if the main power supply is detected to be off in step S674, the flow ends.

  FIG. 174 is a flowchart of the operation of the control unit 11039a of the headset in the embodiment 105 in FIG. The flow in FIG. 174 starts when the main power supply is turned on by the operation unit 1409, and performs an initial startup and a function check of each unit in step S682. Next, in step S684, a short-range communication connection with the mobile phone 11001 is instructed, and the flow shifts to step S686. When short-range communication is established based on the instruction in step S684, the left headset 11081a and the mobile phone 11001 are always in a connected state unless the main power is turned off thereafter. In step S686, it is checked whether short-range communication with the mobile phone 11001 has been established, and if the establishment has been confirmed, the flow shifts to step S688.

  In step S688, the environmental sound microphone 11038 is turned on, and in step S690, an instruction is given to invert the waveform of the environmental sound picked up by the environmental sound microphone 11038 and superimpose it on the sound signal from the mobile phone 11001. If the environmental sound microphone 11038 has already been turned on at the time of step S688, the process proceeds to step S690 without doing anything in this step. If the superimposition of the environmental sound waveform inversion signal has already been instructed at the time of step S690, the process moves to step S692 without doing anything in this step. As described above, the raw environmental noise entering the ear is canceled by the inverted environmental noise output from the cartilage conduction vibration unit 1626.

  Next, in step S692, it is checked whether or not it is in the self-sustained mode. If the reception of the sound signal of the music is not detected, the process proceeds to step S696 to set cartilage conduction equalization, and then proceeds to step S698. On the other hand, when the reception of the sound signal of the music is detected in step S694, the process proceeds to step S700, equalization for relatively increasing the air conduction component is set, and the process proceeds to step S698. If it is detected in step S692 that the mode is not the self-sustaining mode, it means that the mode is the passive mode, and the equalized sound signal is received from the mobile phone 11001. The process directly proceeds to step S698 without performing.

  In step S698, it is checked whether the environmental sound microphone 11038 has detected a sudden increase in environmental sound. If there is no rapid increase in the environmental sound, the process proceeds to step S702, and it is checked whether or not a ringtone of the mobile phone 11001 is being received. If a ringtone is not being received, the process proceeds to step S704 to check whether or not a call is being made. If not, the process proceeds to step S706. Reaching step S706 means that music is being viewed or no sound signal has been received from the mobile phone 11001.

  In step S706, it is checked whether a human voice of a predetermined level or more has been detected from the environmental sound microphone 11038 on the premise of the above state. The detection of whether or not the voice is a human voice is based on, for example, collation of a frequency component specific to the human voice and a pitch and a change pattern of the volume. If a human voice of a predetermined level or more is detected in step S706, the process proceeds to step S708, in which an instruction to stop superimposition of the environmental sound waveform inverted signal instructed in step S690 is performed, and the process returns to step S692. If the stop of superimposition of the environmental sound waveform inversion signal has already been instructed at step S708, the process returns to step S692 without doing anything in this step.

  On the other hand, when the reception of the ringtone of the mobile phone 11001 is detected in step S702, the call is detected in step S704, or when a human voice of a predetermined level or higher is not detected in step S706, The process also proceeds to step S710, instructs to invert the waveform of the environmental sound and superimpose it on the sound signal in the same manner as in step S690, and then proceeds to step S712. If the superimposition of the environmental sound waveform inversion signal has already been instructed at the time of step S710, the process proceeds to step S712 without doing anything in this step. If establishment of short-range communication is not confirmed in step S686, the process directly proceeds to step S712.

  In step S712, it is checked whether the main power has been turned off. If the main power has not been turned off, the process returns to step S686. Hereinafter, steps S686 to S712 are repeated unless the main power supply is detected to be off in step S712. As a result, in accordance with the situation change, the self-sustained mode and the passive mode are changed, the cartilage conduction equalization setting is changed, and the superposition of the environmental sound wave inverted signal or the stop thereof is changed. On the other hand, if the main power supply is detected to be off in step S712, the flow ends.

  Various features shown in each embodiment of the present invention are not necessarily unique to each embodiment, and the features of each embodiment may be appropriately modified and utilized as long as the advantages can be utilized. , And can be used in combination. For example, in the flowchart of FIG. 174, the environmental sound picked up by the environmental sound microphone 11038 (in this case, suddenly increased environmental sound or human voice) is replaced with the mixer without inverting the waveform of the environmental sound waveform inversion signal in step S708. The cartilage conduction vibration unit 1626 may output the human voice in addition to the raw voice by inputting the voice to the unit 1636. As a result, it is possible to more easily notice the horn of the car, the talking of the surrounding people, and the like.

  Further, in the embodiment 105 shown in FIGS. 171 to 174, the left headset 11081a and the right headset 11081b each receive the audio signal from the mobile phone 11001, and the respective control units independently described above. It is configured to perform processing. However, instead of such a configuration of the embodiment 105, the left headset 11081a may be configured to control transmission and reception, and control of equalization, environmental sound cancellation, and the like. In this case, the right headset 11081b does not directly communicate with the mobile phone 11001, but simply receives the drive signal from the left headset 11081a and vibrates the cartilage conduction part. In this case, contrary to the above, the right headset 11081b may supervise the transmission and reception and various controls, and the left headset 11081a may receive the drive signal and vibrate the cartilage conduction part. Needless to say.

  In the embodiment 105 shown in FIGS. 171 to 174, the environmental sound microphone 11038 is provided on the left headset 11081 a side in order to accurately pick up the environmental sound coming toward the ear. The control of the change of the stop is also performed on the left headset 11081a side. However, the specific configuration of such control is not limited to the embodiment. For example, in order to simplify the configuration on the headset side, an environmental sound microphone 11038 is provided on the mobile phone 11001 side, and control of superposition of the environmental sound wave inverted signal or change of stop thereof is also performed on the mobile phone 11001 side. May be configured to transmit only the resulting sound signal. Such a configuration is based on the premise that even if the environmental sound microphone 11038 is provided on the mobile phone 11001 side, it is possible to grasp the environmental sound that can be almost heard. Also, in order to accurately pick up the environmental sound coming to the ear, only the environmental sound microphone 11038 is provided on the headset 11081a side, and the information of the picked up sound is transmitted to the mobile phone 11001 side to superimpose the environmental sound wave inverted signal or The change of the stop may be controlled by the mobile phone 11001 side.

  In the embodiment 105 shown in FIGS. 171 to 174, the headset has a cartilage conduction vibrating section. The feature of temporarily changing the mixture ratio of the component and the direct air conduction component can be implemented even when the cartilage conduction vibration unit is provided in a mobile phone (for example, an upper corner) as in other embodiments. is there.

  Further, in the embodiment 105 shown in FIGS. 171 to 174, when changing the mixture ratio of the cartilage conduction component and the direct air conduction component based on the magnitude change of the sound signal, the example is changed according to the progress of the music. Is shown. However, this feature is not limited to such an implementation. For example, the mixing ratio of the cartilage conduction component and the direct air conduction component can be changed even according to the average volume. Furthermore, by using both of them, the mixing ratio of the cartilage conduction component and the direct air conduction component is changed according to the average volume, and the cartilage conduction component and the direct air conduction component are also changed based on the magnitude change of the sound signal. It can be configured to change the mixture ratio.

  In the embodiment 105 shown in FIGS. 171 to 174, communication between the mobile phone 11001, the portable music player 11084b, the call / sound source server 11084c, and the headsets 11081a to 11081d is performed by a wireless short-range communication unit. However, communication between the two may be wired communication using a cable or the like.

  FIG. 175 is a block diagram related to Example 106 according to the embodiment of the present invention, which is configured as a mobile phone 12001. The block diagram of the embodiment 106 in FIG. 175 has many configurations in common with the embodiment 86 and the like in FIG. 131. Therefore, the same portions are denoted by the same reference numerals as those in FIG. 131, and description thereof will be omitted unless particularly necessary. For the sake of simplicity, for example, the internal configurations of the telephone function unit 45 and the display unit 205 are not illustrated in FIG. The drive function of the cartilage conduction vibration unit 228 is summarized as a drive unit 12039. Further, for simplicity, illustration of components not directly related to the description of the embodiment 106 is omitted. However, the embodiment 106 has another configuration that is not shown in FIG. 175 and is not described, and can be implemented in combination with various features of the other embodiments.

  The embodiment 106 of FIG. 175 differs from the embodiment 86 of FIG. 131 in that a microphone 12023 capable of switching the directivity (collectively referred to as a first microphone 12023a, a second microphone 12023b, a directivity switching unit 12023c, and the like described later) is provided. That is, the directivity of the microphone 12023 is switched in harmony with various functions of the mobile phone 12001 including the cartilage conduction function. To explain this, the microphone 223 illustrated in the block of the telephone function unit 45 in FIG. 131 is illustrated outside the telephone function unit 45 in FIG. 175. Hereinafter, the switching of the directivity of the microphone 12023 will be described in detail.

  The microphone 12023 capable of switching the directivity in the embodiment 106 includes a first microphone 12023a and a second microphone 12023b which are omnidirectional and are closely arranged at a predetermined distance, and the first microphone 12023a and the second microphone 12023b are arranged by a directivity switching unit 12023c. By using the phase difference or the like to reduce sounds in directions other than the target direction, it is possible to provide sharp directivity. The directivity switching unit 12023c can adjust the direction and sharpness of the directivity by changing the phase difference processing. Examples of the microphone 12023 capable of switching the directivity are also described in, for example, JP-A-6-30494 and JP-A-2011-139462. When the directivity switching unit 12023c of the present invention expands the directivity by reducing or not performing the phase difference processing at all, the directivity switching unit 12023c performs a normal operation based on the output information of each of the first microphone 12023a and the second microphone 12023b. It is possible to perform stereo audio processing.

  In the embodiment 106, the directionality and the directivity sharpness of the microphone 12023 are automatically adjusted in conjunction with the various functions of the mobile phone 12001 by using the microphone 12023 capable of switching the directivity as described above. The main information source of this automatic adjustment is the acceleration sensor 49 and various mode switching of the mobile phone 12001.

  FIG. 176 is a schematic diagram for explaining an image of automatic adjustment of the directionality and sharpness of directivity of the microphone 12023 in the embodiment 106 in FIG. 175. FIGS. 176 (A) and (B) show a state in which the direction of the directivity is automatically switched to the left or right in accordance with the inclination of the mobile phone 12001 based on the detection of the gravitational acceleration by the acceleration sensor 49. FIG. 176 (A) shows a case in which the mobile phone 12001 is held by the right hand, and shows a state in which the cartilage conduction part 12024 on the right as viewed from the front is in contact with the right ear 28. Note that FIG. 176 (A) shows a state in which the face is viewed from the side, and shows the positional relationship between the first microphone 12023a and the second microphone 12023b which cannot be seen from the back. Is shown. In this state, the mobile phone 12001 is tilted downward to the right when viewed from the front (illustrated downward to the left in FIG. 176 (A) when viewed from the back), and the control unit 12039 responds to the output of the acceleration sensor 49 that detects this. The directivity switching unit 12023c is instructed to automatically adjust the directivity 12023d of the microphone 12023 to the right (to the left in FIG. 176 (A) viewed from the back). As a result, the directivity 12023d of the microphone 12023 faces the user's mouth, and picks up the voice of the user of the mobile phone 12001 exclusively without picking up environmental sounds in other directions.

  On the other hand, FIG. 176 (B) shows a case where the mobile phone 12001 is held with the left hand, and shows a state where the cartilage conduction part 12026 on the left side when viewed from the front is in contact with the left ear 30. In this state, the mobile phone 12001 is tilted downward to the left as viewed from the front, and in response to the output of the acceleration sensor 49 detecting this, the control unit 12039 instructs the directivity switching unit 12023c to change the directivity 12023e of the microphone 12023. The angle is automatically adjusted to a leftward (rightward in FIG. 176 (B)) narrow angle. As a result, the directivity 12023e of the microphone 12023 faces the user's mouth, and picks up the voice of the user of the mobile phone 12001 exclusively without picking up environmental sounds in other directions.

  FIG. 176 (C) illustrates a state in which the cellular phone 12001 is used in the videophone mode. In the videophone mode, vibration is not output to the left and right cartilage conduction parts 12024 and 12026, and sound is output from the air conduction speaker 51. In this state, the mobile phone 12001 is not tilted when viewed from the front. The control unit 12039 instructs the directivity switching unit 12023c in response to the setting of the videophone mode, and automatically adjusts the directivity 12023f of the microphone 12023 to a central narrow angle. As a result, the directivity 12023f of the microphone 12023 faces the front, and picks up the voice of the user who is directly facing the mobile phone 12001 without picking up environmental sounds in other directions. The information source that automatically adjusts the directivity 12023f of the microphone 12023 to the central narrow angle by the control unit 12039 is the output of the acceleration sensor 49 that detects that the mobile phone 12001 is not tilted to the left or right instead of the videophone mode setting. May be configured. Further, instead of this, for example, the configuration according to the pair of infrared light emitting units 19 and 20 and the common infrared light proximity sensor 21 shown in the first embodiment of FIG. It may be configured to detect a videophone state by detecting that no call is made.

  FIG. 176 (D) illustrates a state where the mobile phone 12001 is used in the speaker mode and is horizontally placed on a desk or the like. In the speaker mode, no vibration is output to the left and right cartilage conduction parts 12024 and 12026, and sound is output from the air conduction speaker 51. Such a use is suitable when a plurality of persons surround one mobile phone 12001 and hold a telephone conference. The control unit 12039 instructs the directivity switching unit 12023c by setting the speaker mode and detecting the horizontal placement state based on the output of the acceleration sensor 49, and automatically adjusts the directivity 12023g of the microphone 12023 to a central wide angle. As a result, the microphone 12023 becomes almost omnidirectional, and it is possible to pick up the voices of all the persons surrounding the desk on which the mobile phone 12001 is placed. At this time, the directivity switching unit 12023c reduces or does not perform the phase difference processing for canceling the voice outside the directivity range, and based on the output information of each of the first microphone 12023a and the second microphone 12023b. To perform normal stereo sound processing. This makes it possible to discriminate the directions of the voices of a plurality of persons surrounding the mobile phone 12001. The speaker mode is determined based on the infrared light proximity sensor 21 shown in the first embodiment in FIG. It is also possible by detecting that the upper part of the telephone 12001 is not put on the ear.

  FIG. 177 is a flowchart of the operation of the control unit 12039 of the mobile phone 12001 in the embodiment 106 in FIGS. 175 and 176. The flow in FIG. 177 starts when the main power supply is turned on, and in step S722, an initial startup and a function check of each unit are performed. Next, in step S724, the directivity of the microphone 12023 is set to the central narrow angle, and the flow shifts to step S726. In step S726, it is checked whether a calling operation of the mobile phone 12001 has been performed. If no operation has been performed, the process advances to step S728 to check whether there is an incoming call to the mobile phone 12001. If there is an incoming call, the process moves to step S730. Also, when a calling operation is detected in step S726, the process shifts to step S730.

  In step S730, it is checked whether or not the call is started by the other party's response to the call operation or the operation of receiving the incoming call. If the call is started, the process proceeds to step S732. If the start of the call cannot be detected, the process returns to step S726. Thereafter, as long as the calling operation or the incoming call continues, steps S726 to S730 are repeated to wait for the start of the call.

  If the start of a call is detected in step S730, the flow advances to step S732 to check whether the videophone mode is set. If it is not a videophone call, the flow shifts to step S734 to check whether or not the speaker call mode is set. If the mode is not the speaker mode, the process shifts to step S736 to check whether the mobile phone 12001 is tilted to the left by a predetermined angle or more. If a leftward tilt greater than a predetermined angle is not detected, the flow shifts to step S738 to check whether the mobile phone 12001 is tilted rightward by a predetermined angle or more. If a rightward tilt of a predetermined value or more is not detected, the flow shifts to step S740 to set the directivity of the microphone 12023 to the central narrow angle, and shifts to step S742. At this time, if the directivity has already been set to the central narrow angle, the process proceeds to step S742 without doing anything in this step. In the mobile phone 12001 using cartilage conduction, since the upper corner of the mobile phone is applied to the ear instead of the center of the upper side of the mobile phone, the inclination during use is larger than that of a normal mobile phone, and the microphone 12023 tends to move away from the mouth. The configuration in which the directivity is switched between left and right by using the right hand or the left hand as described above is particularly useful.

  On the other hand, if it is detected in step S736 that the mobile phone 12001 is tilted to the left by more than the predetermined angle, the flow shifts to step S744, the directivity of the microphone 12023 is set to the left narrow angle, and the flow shifts to step S742. At this time, if the directivity has already been set to the left narrow angle, the process proceeds to step S742 without doing anything in this step. On the other hand, if it is detected in step S738 that the mobile phone 12001 is tilted to the right by more than a predetermined angle, the flow shifts to step S746, the directivity of the microphone 12023 is set to the right narrow angle, and the flow shifts to step S742. I do. Also at this time, if the directivity has already been set to the right narrow angle, the process moves to step S742 without doing anything in this step.

  If it is detected in step S732 that the videophone mode is set, the flow shifts to step S748, where the directivity of the microphone 12023 is set to the central narrow angle, and the flow shifts to step S742. Also at this time, if the directivity has already been set to the central narrow angle, the process proceeds to step S742 without doing anything in this step. Further, when the setting to the speaker communication mode is detected in step S734, the process proceeds to step S750, and it is checked whether or not the camera is in the horizontal mounting state based on the output of the acceleration sensor 49. If so, the flow shifts to step S752, where the directivity of the microphone 12023 is set to the central wide angle, and the flow advances to step S754 to instruct stereo processing, and the flow shifts to step S742. Also at this time, if the directivity is already set to the central wide angle, nothing is performed in step S752, and the stereo processing instruction in step S754 is continued, and the process proceeds to step S742. On the other hand, if the horizontal placement state is not detected in step S750, the flow shifts to step S748, where the directivity of the microphone 12023 is set to the central narrow angle, and the flow shifts to step S742. Also at this time, if the directivity has already been set to the central narrow angle, the process moves to step S742 without performing anything in step S748.

  In step S742, it is checked whether a call termination operation has been performed. If there is no call end operation, the process returns to step S732. Unless a call termination operation is detected in step S742, steps S732 to S754 are repeated, and the directivity is automatically switched in response to a change in various situations during the call. On the other hand, when the call termination operation is detected in step S742, the process proceeds to step S756. If no incoming call is detected in step S728, it means that there is neither a calling operation nor an incoming call, and the process shifts to step S758. In step S758, a process corresponding to the voice input operation by the microphone 12023 is performed, and the flow shifts to step S756. Note that when the voice input corresponding process of step S758 is reached, the directivity of the microphone 12023 is set to the central narrow angle in step S724. The voice of the voice input instruction of the user is picked up.

  In step S756, it is checked whether the main power of the mobile phone 12001 has been turned off. If the main power has not been turned off, the process returns to step S724. Hereinafter, steps S724 to S756 are repeated as long as the main power supply is not detected to be off in step S756, which corresponds to various status changes of the mobile phone 12001. On the other hand, if it is determined in step S756 that the main power supply has been turned off, the flow ends.

  The implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, the configuration of the automatic switching of the directivity between left and right by detecting the tilt of the mobile phone to the right or the left in Embodiment 106 and the configuration of the automatic adjustment of the directivity direction and the sharpness of the directivity according to various situations can reduce cartilage conduction. The present invention is not limited to the adopted mobile phone, but can also be applied to a mobile phone that receives a call through a normal speaker.

  Further, in the embodiment 106, the determination of whether to use the left hand or the right hand is performed by detecting the inclination by the acceleration sensor, but the determination of the use of the left hand or the right hand is not limited to this. For example, according to the configuration according to the pair of infrared light emitting units 19 and 20 and the common infrared light proximity sensor 21 shown in the first embodiment in FIG. 1, either the left corner or the right corner at the top of the mobile phone has an ear. May be detected. Further, a contact sensor may be provided on the back surface of the mobile phone or the like, and it may be determined whether the left hand is used or the right hand is used based on the difference in the hand contact state between the left hand and the right hand.

  FIG. 178 is a perspective view and a cross-sectional view of Example 107 according to the embodiment of the present invention, which is configured as a mobile phone 13001. Since the embodiment 107 has many parts in common with the embodiment 103 of FIG. 168, corresponding parts are denoted by the same reference numerals and description thereof will be omitted unless necessary. Since the internal structure of the mobile phone 13001 is the same as that of the embodiment 57, FIG. 87 is referred to. The embodiment 107 of FIG. 178 is different from the embodiment 103 of FIG. 168 in the cartilage conduction vibration source. In the embodiment 103, the electromagnetic air conduction speaker 9925 is employed. The element 13025 is adopted. In addition, also for supporting the piezoelectric bimorph element 13025, a characteristic structure different from that of the other embodiments is employed as described later. In Embodiment 107, unlike Embodiment 103, the piezoelectric bimorph element 13025 is the vibration source of the cartilage conduction parts 8224 and 8226, and the air conduction sound is generated by the vibration of the upper edge of the front plate 8201a. . In this regard, the embodiment 107 of FIG. 178 is rather closer to the embodiment 88 of FIG.

  Hereinafter, the embodiment 107 will be described in detail with reference to FIG. FIG. 178 (A) is a perspective view showing the appearance of the mobile phone 13001 of the embodiment 107, but does not have the air conduction sound passing hole 9901b as in the embodiment 103 of FIG. 168.

  Next, the arrangement and support structure of the piezoelectric bimorph element 13025 will be described with reference to FIG. 178 (B), which is a cross-sectional view taken along line B1-B1 of FIG. 178 (A). As described above, the working example 107 uses the piezoelectric bimorph element 13025 as a vibration source. In this support, the piezoelectric bimorph element 13025 is vertically arranged at the midpoint between the cartilage conduction parts 8224 and 8226, and one end on the upper side is inserted into the hanging part 8227c of the upper frame 8227 to support the cantilever. As a result, the other lower end of the piezoelectric bimorph element 13025 vibrates freely, and its reaction is transmitted from the hanging part 8227c to the cartilage conduction parts 8224 and 8226, respectively. The vibration direction is a direction perpendicular to the front plate 8201a (a direction perpendicular to the plane of FIG. 178).

  FIG. 178 (C), which is a top view of FIG. 178 (A), shows the hanging portion 8227c inside and the piezoelectric bimorph element 13025 inserted therein by broken lines. As is clear from FIG. 178 (C), the hanging portion 8227c is arranged near the back plate 8201b, and the piezoelectric bimorph element 13025 vibrates near the back plate 8201b without contacting other than the hanging portion 8227c. Accordingly, the piezoelectric bimorph element 13025 vibrates without occupying the space near the front plate 8201a above the cellular phone 13001 where many members are arranged. The reaction of the vibration of the piezoelectric bimorph element 13025 is transmitted only to the upper frame 8227 via the hanging part 8227c.

  FIG. 178 (D), which is a cross-sectional view taken along line B2-B2 shown in FIGS. 178 (A) to 178 (C), shows that the hanging portion 8227c is integrated with the upper frame 8227, and the hanging portion 8227c is located on the back plate 8201b. This indicates that the free end of the piezoelectric bimorph element 13025 that is provided near and inserted therein is vibrating in the direction perpendicular to the front plate 8201a as indicated by an arrow 13025a. In FIG. 168 (D), the free end of the piezoelectric bimorph element 13025 vibrates without touching other than the hanging portion 8227c, and the reaction of the vibration is transmitted only to the upper frame 8227 via the hanging portion 8227c which is a supporting portion. I understand.

  FIG. 178 (E) is a cross-sectional view taken along the line B3-B3 of FIG. 178 (B), and shows the hanging portion 8227c inside and the piezoelectric bimorph element 13025 inserted therein by broken lines. As shown in FIGS. 178 (A) to (D), the piezoelectric bimorph element 13025 in Embodiment 107 vibrates without occupying the space near the front plate 8201a above the cellular phone 13001 where many members are arranged. Therefore, it is configured to be thin in the vibration direction. By vertically supporting such a thin piezoelectric bimorph element 13025 at a midpoint between the cartilage conduction parts 8224 and 8226 toward the back plate 8201b, the cartilage conduction part can be occupied without much occupying the space above the mobile phone 13001. Vibration can be evenly transmitted to 8224 and 8226.

  Example 107 shown in FIG. 178 is further configured by focusing on utilizing cartilage conduction in a frequency range of 4 kHz or more. Hereinafter, the basic matter will be described.

  As already described, the graph showing an example of the actual measurement data of the mobile phone in FIG. 79 shows that when the mobile phone is brought into contact with the ear cartilage around the entrance of the ear canal at a contact pressure of 250 g (normally used pressure), Compared with the contact state, the sound pressure in the ear canal 1 cm deep from the ear canal entrance is increased by at least 10 dB in the main frequency band of voice (500 Hz to 2300 Hz). (Refer to the comparison between the non-contact state shown by the solid line in FIG. 79 and the contact state at 250 gram by the dashed line.) On the other hand, in the higher frequency band (for example, 2300 Hz to 7 kHz), the non-contact state and the 250 wt. The difference in sound pressure from the contact state in grams is relatively small. However, according to FIG. 79, even in a higher frequency band, an increase in sound pressure in the contact state at 250 g is clearly recognized as compared with the non-contact state. The same is true for the comparison between the sound pressure at a contact pressure of 500 gram when the ear canal is closed (two-dot chain line) and the non-contact state (solid line), and the main frequency band of the voice (500 Hz to 2300 Hz). Although not remarkable, even in a higher frequency band (for example, 2300 Hz to 7 kHz), the sound pressure in the contact state at 500 g is clearly increased as compared with the non-contact state. In particular, at a contact pressure of 500 g, there is no direct air conduction sound because the ear canal is closed, and the increase in sound pressure from the non-contact state is exclusively due to cartilage conduction.

  As already mentioned, it is known that the lower the sound, the lower the sensitivity in the low-frequency range becomes. FIG. 179 illustrates this, and is called a “Fletcher and Manson equal loudness curve”. As can be seen from FIG. 179, when comparing, for example, between 100 Hz and 1 KHz, equal loudness is obtained at a sound pressure level of about 100 dB in both equal loudness curves of 100 phones. However, according to the equal loudness curve of 40 phones, 1 kHz is 40 dB, whereas it is 60 dB at 100 Hz, and it is understood that extra sound pressure of 20 dB is required to obtain a loudness equivalent to 1 kHz at 100 Hz. That is, the higher the point where the equal loudness curve intersects the horizontal axis, the lower the auditory sensitivity, and the lower the point, the higher the auditory sensitivity. It can be seen that the increase in sound pressure in a relatively low frequency region in FIG. 79 is suitable for compensating for a decrease in human auditory sensitivity in a region where sound is small as in FIG. 179.

  On the other hand, as shown in FIG. 179, in a relatively high frequency region (for example, 4 kHz to 10 kHz), human hearing (although a decrease in sensitivity from the high frequency side due to aging is recognized) is relatively small even if the sound is small. Good sensitivity is maintained. Considering the characteristics of human hearing, the increase in sound pressure due to cartilage conduction in a higher frequency band (for example, 2300 Hz to 7 kHz) in the experimental results of FIG. 79 is caused by the main frequency band of voice (500 Hz to 2300 Hz). Not only in a higher frequency region (for example, 4 kHz to 10 kHz) but also in a higher frequency region, it is shown that practical sound transmission is possible by cartilage conduction. Actually, when the cartilage conduction part was driven by pure sound and brought into contact with the ear cartilage in a state where the influence of air conduction sound was cut off with earplugs, the sound due to cartilage conduction could be heard well at least at 7 kHz. Was. Furthermore, according to the experiment of young people, even at 10 kHz, a clear increase in sound pressure was observed due to the change from the non-contact state to the contact state, and it was confirmed that cartilage conduction occurred even at such a frequency. .

  The embodiment 107 shown in FIG. 178 is configured to utilize cartilage conduction even over a frequency range of 4 kHz or more based on the above recognition. Performs equalization considering characteristics. When the external earphone jack 8246 is used, wide area equalization (e.g., equalization in a range of 20 Hz to 20 kHz) is performed in consideration of reproduction of a music source.

  In the example 107 shown in FIG. 178, the frequency band utilizing cartilage conduction is expanded to 7 kHz as described above. As described above, it is possible to utilize cartilage conduction even in a frequency band of 7 kHz or more, but the reason for setting it to 7 kHz is to give priority to protection of privacy and reduction of inconvenience to surroundings, which are advantages of cartilage conduction. That's why. As shown in FIG. 179, the human auditory sensitivity still maintains high sensitivity to a small sound even in a high frequency band of 7 kHz or more. On the other hand, a high frequency band of 7 kHz or more is a region where so-called crunchy sounds are heard, and even small sounds are unpleasant around. Therefore, by preventing the piezoelectric bimorph element from vibrating in the frequency band of this region, it is possible to prevent the generation of unpleasant air-conducted sound around even a slight sound leak.

  The frequency band of 3.4 kHz or more is not used in a mobile phone call that is currently common, but as described above, the sampling frequency of PHS and IP phones is 16 kHz, and can be quantized up to 8 kHz. The sound signal is about 7 kHz. In the future, from the improvement of the data communication rate, it is expected that cartilage conduction in a broad sense that also takes the direct air conduction component into account also in mobile phones. Can be In such a situation, the configuration described in Embodiment 107 is extremely useful.

  Although a specific description will be given below, since the block diagram of the embodiment 107 is common to that of the embodiment 57, FIG. 87 is used. However, the function of the application processor 5339 and the function of the control unit 5321 for controlling the analog front end 5336 and the cartilage conduction acoustic processing unit 5338 according to the instruction are different from those of the embodiment 57. Specifically, in FIG. 87, a sound signal provided to earphone jack 5313 (corresponding to earphone jack 8246 in FIG. 178) and an amplifier 5340 for driving piezoelectric bimorph element 5325 (corresponding to piezoelectric bimorph 13025 in FIG. 178) are provided. The equalization of the provided sound signal is different from that of the embodiment 57 as described above.

  FIG. 180 is a flowchart illustrating functions of the application processor 5339 (see FIG. 87) in the embodiment 107. The flow of FIG. 180 extracts and illustrates the operation centering on the function of the application processor 5339 related to the control of the analog front end 5336 and the cartilage conduction acoustic processing unit 5338 in FIG. There are also operations of the application processor 5339 not shown in the flow of FIG. Also, the application processor 5339 can achieve various functions shown in other various embodiments, but illustration and description of these functions in FIG. 180 are omitted to avoid complication.

  The flow in FIG. 180 starts when the main power supply of the mobile phone 13001 is turned on. In step S762, initial startup and function check of each unit are performed, and the screen display on the display unit 8205 of the mobile phone 13001 is started. Next, in step S764, the functions of the cartilage conduction unit such as the amplifier 5340 and the transmitting unit 8223 of the mobile phone 13001 related to the driving of the piezoelectric bimorph element 13025 are turned off, and the flow proceeds to step S766.

  In step S766, it is checked whether an earphone or the like is inserted into external earphone jack 8246. If the insertion into the external earphone jack 8246 is not detected, the flow advances to step S768 to check whether or not a call is being made. If it is in a call state, the process proceeds to step S770, where the functions of the cartilage conduction unit and the transmitting unit are turned on, and the process proceeds to step S772. In step 772, equalization taking into account the characteristics of cartilage conduction is performed, and in step S774, equalization is performed in a frequency band from 300 Hz to 7 kHz, and the flow advances to step S776. The reason for separating step S772 and step S774 is that, as described later, when an earphone is inserted into the external earphone jack 8246 to make a telephone call, equalization in a frequency band of 300 Hz to 7 kHz is performed without taking into account the characteristics of cartilage conduction. In some cases, this is performed in a functionally separated manner. Actually, when the cartilage conduction part is turned on, steps S772 and S774 are executed as an integrated equalization.

  In step S776, it is checked whether or not the entrance of the ear canal is closed, and if not, the process proceeds to step S778, and the process proceeds to step S780 without adding a signal obtained by inverting the waveform of the own voice. Whether the entrance of the ear canal is closed or not is checked, for example, by the output of the pressing sensor 242 shown in the fourth embodiment in FIG. This can be achieved by processing such as deeming that the external auditory canal closure occurs due to the above. Since the presence / absence of the addition of the self-voice waveform inversion signal has been described in steps S52 to S56 in the flow of FIG. 10, the details are omitted. On the other hand, when it is detected in step S776 that the entrance of the ear canal is closed, the flow shifts to step S782, adds a self-voice waveform inversion signal, and shifts to step S780.

  In step S780, it is checked whether or not the call is disconnected. If not, the process returns to step S776. Thereafter, steps S776 to S780 are repeated unless the call is disconnected. Thus, whether or not the self-voice waveform inversion signal is added can be changed according to the change of the setting or the situation even during the call. On the other hand, if it is detected in step S780 that the call has been disconnected, the flow advances to step S784 to turn off the functions of the cartilage conduction unit and the transmitting unit, and then shifts to step S786. If no call state is detected in step S768, the flow directly proceeds to step S784. If the functions of the cartilage conduction part and the transmitting part have already been turned off when the step S784 has been reached, the process proceeds to the step S786 without doing anything in the step S784.

  On the other hand, when the insertion into the external earphone jack 8246 is detected in step S766, the flow shifts to step S788 to turn off the cartilage conduction part and shift to step S790. At this time, if the cartilage conduction part is already in the off state, the process proceeds to step S790 without doing anything in step S788. In step S790, it is checked whether or not the call is in a call state. If it is in a call state, the flow advances to step S792 to turn on the function of the transmitting section, and then to step S774. As a result, a voice from the other party output from the external earphone jack 8246 can be heard from the earphone, and a call can be made to transmit own voice from the transmitter. Also, by shifting to step S774, equalization in the frequency band from 300 Hz to 7 kHz is performed, and the flow enters the same flow as in the case of cartilage conduction. In this case, since step S772 has not been performed, equalization in a frequency band of 300 Hz to 7 kHz is performed without taking into account the characteristics of cartilage conduction. Also, in the case where the determination method that the external ear canal is considered to be in a state where the external auditory canal is closed by using the external earphone is adopted in step S776, if the process proceeds to step S776 via step S792, the flow is exclusively performed. A route from step S776 to step S780 via step S782 is taken. This reduces the discomfort of the self-voice when using the earphone.

  On the other hand, if no call state is detected in step S790, music data has been output from the external earphone jack 8246, so wide-area equalization (for example, equalization in the range of 20 Hz to 20 kHz) is performed in step S794, and the flow advances to step S796. In step S796, music appreciation processing such as reproduction of music data is performed, and upon completion of the processing, the flow proceeds to step S786.

  In step S786, it is checked whether the main power of the mobile phone 13001 is turned off. If the main power is not turned off, the process returns to step S766. Unless the main power is turned off in step S786, steps S766 to S796 are performed. Repeat according to circumstances. On the other hand, when the main power supply is detected to be off in step S786, the flow ends.

  FIG. 181 is a cross-sectional view of Example 108 according to the embodiment of the present invention and a modification thereof, which is configured as a mobile phone 14001 or a mobile phone 15001. Since the embodiment 108 and its modified examples have many parts in common with the embodiment 107 in FIG. 178, the corresponding portions are denoted by the same reference numerals and the description thereof will be omitted unless necessary. In addition, since there is no difference in the appearance from the embodiment 107, FIG. 178 (A) is used and the perspective view in FIG. 181 is omitted. The embodiment 108 of FIG. 181 differs from the embodiment 107 of FIG. 178 in that the piezoelectric bimorph element is vertically arranged in the embodiment 107, whereas the piezoelectric bimorph element 14025 or 15025 are arranged horizontally.

  FIG. 181 (A) corresponds to a cross-sectional view taken along line B1-B1 in FIG. 178 (A) (embodiment 107 is used) in embodiment 108. As is clear from FIG. 181 (A), also in Example 108, a hanging part 8227d from the upper frame 8227 is provided at an intermediate point between the cartilage conduction parts 8224 and 8226. However, the piezoelectric bimorph element 14025 is arranged sideways, and is cantilevered by inserting one end on the right side in the drawing into the hanging part 8227d. As a result, the other end on the left side of the piezoelectric bimorph element 14025 in the figure freely vibrates, and its reaction is transmitted from the hanging part 8227d to the cartilage conduction parts 8224 and 8226, respectively. The vibration direction is the direction perpendicular to the front plate 8201a (the direction perpendicular to the plane of FIG. 181) in the same manner as in the embodiment 107.

  FIG. 181 (B), which corresponds to the top view of FIG. 178 (A) (involving the example 107), shows the hanging portion 8227d inside and the piezoelectric bimorph element 14025 inserted therein by broken lines. As is clear from FIG. 181 (B), as in the embodiment 107, the hanging portion 8227d is arranged near the back plate 8201b, and the piezoelectric bimorph element 14025 is not in contact with any portion other than the hanging portion 8227d. Vibrates near 8201b. Thus, in the same manner as in Embodiment 107, the piezoelectric bimorph element 14025 vibrates without occupying the space near the front plate 8201a above the mobile phone 14001 where many members are arranged. Also in Embodiment 108, the reaction of vibration of the piezoelectric bimorph element 14025 is transmitted only to the upper frame 8227 via the hanging portion 8227d.

  FIG. 181 (C), which is a cross-sectional view along line B2-B2 shown in FIGS. 181 (A) and (B), shows that the hanging portion 8227d is integrated with the upper frame 8227, and that the hanging portion is similar to the embodiment 107. This indicates that the portion 8227d is provided near the back plate 8201b.

  FIGS. 181 (D) to 181 (F) show a modification of the embodiment 108. FIG. FIG. 181 (D) corresponds to a cross-sectional view taken along line B1-B1 of FIG. 178 (A) (referring to Example 107), and hangs from the upper frame 8227 at an equal distance across the midpoint between the cartilage conduction parts 8224 and 8226. This shows that two hanging parts 8227e and 8227f are provided. The piezoelectric bimorph element 15025 is arranged horizontally in the same manner as in the embodiment 108, but is not cantilevered as in the embodiment 108 but is inserted into the two hanging portions 8227e and 8227f from the inside, respectively. Both sides are supported. In order to perform such support, for example, at least one of the hanging parts 8227e and 8227f can be detached from the upper frame 8227, and both ends of the piezoelectric bimorph element 15025 are inserted between the hanging parts 8227e and 8227f before the upper frame The assembly structure is such that the hanging parts 8227e and 8227f are integrally attached to the 8227. In the case of such a two-sided support, the central portion of the piezoelectric bimorph element 15025 vibrates freely, and the reaction is transmitted from the hanging parts 8227e and 8227f to the cartilage conduction parts 8226 and 8224, respectively. The vibration direction is the direction perpendicular to the front plate 8201a (the direction perpendicular to the plane of FIG. 181) as in the embodiment 108.

  FIG. 181 (E) corresponding to the top view of FIG. 178 (A) (in reference to the embodiment 107) shows two hanging portions 8227e and 8227f inside and a piezoelectric bimorph element 15025 inserted therebetween by broken lines. Indicated by. As is clear from FIG. 181 (E), the two hanging parts 8227e and 8227f are arranged close to the back plate 8201b, and the piezoelectric bimorph element 15025 is other than the hanging parts 8227e and 8227f as in the embodiment 108. Vibrates in the vicinity of the back plate 8201b without touching the surface. Thus, in the same manner as in the embodiment 108, the piezoelectric bimorph element 15025 vibrates without occupying the space near the front plate 8201a above the mobile phone 15001 on which many members are arranged. Also in the modification of the embodiment 108, the reaction of the vibration of the piezoelectric bimorph element 15025 is transmitted only to the upper frame 8227 through the hanging parts 8227e and 8227f.

  FIG. 181 (F), which is a cross-sectional view taken along line B2-B2 shown in FIGS. 181 (D) and (E), shows that the hanging portions 8227e and 8227f are integrated with the upper frame 8227 in the same manner as in Embodiment 107. And that the hanging portions 8227e and 8227f are provided near the back plate 8201b. In the modification, there are two hanging parts 8227e and 8227f. Therefore, FIG. 181 (F) shows a B2-B2 section corresponding to the hanging part 8227f as a representative.

  The various features shown in each of the above embodiments are not necessarily unique to each embodiment, and the features of each embodiment may be appropriately combined with the features of other embodiments as long as the advantages can be utilized. They can be combined or rearranged. In addition, individual specific configurations in each embodiment can be replaced with other equivalent means. For example, in the embodiment 107 in FIG. 178, the embodiment 108 in FIG. 181, and the modifications thereof, the configuration is shown in which the end of the piezoelectric bimorph element is inserted into the hole of the hanging part. The present invention is not limited to this. For example, the end of the piezoelectric bimorph element may be bonded to the hanging part.

  In Embodiment 107 in FIG. 178, the piezoelectric bimorph element 13025 is arranged near the back plate 8201b, and vibrates without occupying the space near the front plate 8201a above the cellular phone 13001 where many members are arranged. Is useful not only in the case of using a piezoelectric bimorph element as a cartilage conduction vibration source. For example, when an electromagnetic vibrator is used as the cartilage conduction vibration source, the same advantage can be enjoyed by arranging it near the back plate.

  Further, in the present invention, the air-conduction sound equalizing up to 20 kHz is performed on the earphone jack and the cartilage conduction equalizing is performed up to 7 kHz on the cartilage conduction vibration source, as shown in FIG. The present invention is not limited to the one using the piezoelectric bimorph element as the vibration source, and is useful even when another cartilage conduction vibration source is used. For example, this feature is also useful when employing an electromagnetic vibrator as a cartilage conduction vibration source.

  FIG. 182 is a schematic diagram of Example 109 according to the embodiment of the present invention, which is configured as a stereo earphone. FIG. 182 (A) is a front view (corresponding to the side of the face) of the right-ear earphone attached to right ear 28. Illustration of faces other than the right ear 28 is omitted for simplicity. In addition, the following stereo earphones will be described only for the right ear for simplicity, but the embodiment includes a left ear earphone of the same configuration, and the right ear earphone and the left ear earphone are provided by a stereo mini plug. It can be connected to a stereo mini jack for external output of a mobile phone or a portable music terminal. In FIG. 182 (A), the structure of the right-ear earphone is shown by a broken line to show the relationship with the structure of the ear.

  As is clear from FIG. 182 (A), the cartilage conduction part 16024 of the earphone for the right ear is sandwiched in the space between the inside of the tragus 32 and the anti-earring 28a. Further, the cartilage conduction part 16024 is provided with a through hole 16024a that substantially matches the ear canal entrance 30a. The cartilage conduction part 16024 is formed of an elastic body having a strong repulsive force, and corresponds to individual differences in the size of the mounting space between the inside of the tragus 32 and the anti-ear ring 28a due to deformation due to the mounting, and the repulsive force accompanying the deformation. This prevents the cartilage conduction part 16024 from falling out of the mounting space. In addition, the ear cartilage itself is slightly deformed by wearing, and the cartilage conduction part 16024 is held by the repulsive force. Therefore, the cartilage conduction part 16024 has an elastic body structure that is stronger than the ear cartilage itself.

  A sheath 16024b is fixed to the cartilage conduction part 16024, and accommodates therein a piezoelectric bimorph element (not shown in FIG. 182 (A)). The piezoelectric bimorph element can vibrate so as not to touch the inner wall of the sheath 16024b as described later, and the upper end thereof is fixed to the cartilage conduction part 16024. The sheath 16024b can hang below the ear 28 from the concha cavity 28e to the intertrabecular notch 28f. In FIG. 182 (A), the sheath 16024b is shown to be inclined downward and to the right in the figure, but may be suspended almost vertically depending on the individual shape of the ear. It should be noted that the details of the structure of the ear have been described with reference to FIG. 80, and by referring to this, the manner in which the cartilage conduction portion 16024 and the sheath portion 16024b of the earphone fit in the ear 28 can be better understood.

  FIG. 182 (B) is a side view of the earphone, in which the left side corresponds to the ear canal entrance 30a. Illustration of ears is omitted for simplicity. As is clear from FIG. 182 (B), the cartilage conduction part 16024 has a thickness protruding in the direction of the ear canal entrance 30a from the sheath part 16024b so as to fit in the space between the inside of the tragus 32 and the anti-earring 28a. The cartilage conduction part 16024 has a ring-shaped edge 16024c on the right side (the side opposite to the ear canal entrance 30a) in the view around the through-hole 16024a.

  FIG. 182 (C) is an enlarged front view of the earphone, showing a state where a ring-shaped edge 16024c is provided around the through-hole 16024a. Further, as is apparent from FIG. 182 (C), the sheath 16024b is embedded and fixed below the cartilage conduction part 16024. Further, the upper end of the piezoelectric bimorph element 16025 is directly embedded and fixed below the cartilage conduction part 16024 without touching the inner wall of the sheath part 16024b. On the other hand, the lower end of the piezoelectric bimorph element 16025 can freely vibrate in the sheath 16024b, and its reaction is transmitted to the cartilage conduction part 16024, and good cartilage conduction to the ear cartilage occurs. A connection cable 16024d is led out from the lower end of the piezoelectric bimorph element 16025, and penetrates through the lower end of the sheath 16024b and is connected to a stereo mini plug.

  FIG. 182 (D) is a cross-sectional view taken along line B1-B1 of FIG. 182 (C), and shows a state where a ring-shaped edge 16024c provided around the through-hole 16024a projects outward (upward in the figure). Embodiment 109 is configured so that music and the like can be enjoyed by cartilage conduction without interrupting the sound of the outside world basically by the through hole 16024a that is widely opened. This makes it possible to easily notice danger sounds such as horns of a car when listening to music outdoors, and to respond promptly when a nearby person talks to the user, thereby enabling smooth communication. When it is desired to temporarily close the ear canal and concentrate on listening to music, as shown in FIG. 182 (D), lightly attach the cartilage conduction part 16024 to the ear with the belly of the finger 16067 from the outside while the earphone is worn. Press on. As a result, the contact pressure between the cartilage conduction part 16024 and the ear cartilage increases and the volume increases, and as shown in FIG. 182 (D), the annular edge 16024c bites into the belly of the finger 16067 to close the through hole 16024a efficiently. I do. Since the earphones are stereo earphones, it goes without saying that the earphones of both ears are pushed with the left and right fingers as described above in order to achieve the closed ear canal state.

  FIGS. 182 (E), (F) and (G) are simplified illustrations of FIG. 182 (C), and show a state where the cartilage conduction part 16024 is deformed. FIG. 182 (F) shows the standard state, and FIG. 182 (E) shows that the cartilage conduction part 16024 is stronger in the left and right directions when the space between the inside of the tragus 32 and the anti-auricular ring 28a is worn on a person who is narrow on the left and right. This shows a state of being pressed and deformed. On the other hand, FIG. 182 (G) shows a state in which the cartilage conduction part 16024 is deformed by being pushed more strongly in the up and down direction when it is worn on a person whose installation space is narrow vertically. FIGS. 182 (E), (F) and (G) show typical examples in a simplified manner, but the cartilage conduction portion 16024 can be freely deformed according to individual differences in the shape of the mounting space.

  FIG. 183 is a schematic diagram of Example 110 according to the embodiment of the present invention, which is configured as a stereo earphone. Since the embodiment 110 of FIG. 183 has many points in common with the embodiment 109 of FIG. 182, the same portions are denoted by the same reference numerals and description thereof is omitted. Example 110 is different from Example 109 in that the sheath 17024b is configured to be able to slide up and down with respect to the cartilage conduction part 17024 so that the through-hole 17024a can be opened and closed. The opening 17024a is relatively small as shown in FIG. 183 (A) to facilitate opening and closing. Note that the outside sound can reach the eardrum from the ear canal even in a small gap, so that there is no problem even if the through hole 17024a is small. Unlike the embodiment 110, the cartilage conduction portion 17024 is made of a hard material in order to stably guide the sheath portion 17024b and avoid deformation. In the case of the embodiment 110, the deformation of the cartilage itself is premised on the absorption of individual differences in the shape and size of the mounting space.

  FIGS. 183 (B) and (C) are side views of the earphone, which can be understood in the same manner as FIG. 182 (B). Note that in FIGS. 183 (B) and (C), the piezoelectric bimorph element 17025 is indicated by a broken line to explain the relationship with the movement of the sheath 17024b. The outside (the right side in the figure) of the through hole 17024a is a window 17024e through which the sheath 17024b enters and exits. When the sheath 17024b is lowered as shown in FIG. 183 (B), the window 17024e is opened. 182 is substantially in the same state as the embodiment 109 in FIG. On the other hand, when the sheath 17024b is raised as shown in FIG. 183 (C), the window 17024e is closed and the through hole 17024a is also closed, so that the ear canal is closed. As described above, in Example 110, by moving the sheath 17024b up and down, the sheath can be used in the ear canal open state and the ear canal closed state. 183 (B) and (C) can be switched before the earphone is worn on the ear, but the state can be switched by moving the sheath 17024b up and down during the wearing.

  FIG. 183 (D) is an enlarged front view of the earphone, and corresponds to the ear canal open state in FIG. 183 (B). The sheath portion 17024b is configured to be able to move up and down in the cartilage conduction portion 17024 along a guide groove 17024f provided around the window 17024e. The upper end of the piezoelectric bimorph element 17025 is directly embedded and fixed below the cartilage conduction part 17024 without touching the inner wall of the sheath part 17024b. The lower end of the piezoelectric bimorph element 17025 can freely vibrate in the sheath 17024b as in the embodiment 109. With such a configuration, even when the sheath 17024b moves up and down, the piezoelectric bimorph element 17025 stably couples to the cartilage conduction part 17024 and transmits the vibration.

  FIG. 183 (E) is an enlarged front view of the earphone similar to FIG. 183 (D), but corresponds to the closed state of the ear canal in FIG. 183 (C). The sheath 17024b slides upward along the guide groove 17024f, and is in a state of covering the window 17024e. As a result, as shown by the broken line, the through-hole 17024a is also closed. Even in this state, the piezoelectric bimorph element 17025 stably couples with the cartilage conduction part 17024 and vibrates without touching the inner wall of the sheath part 17024b, and transmits the vibration to the cartilage conduction part 17024. Note that the connection cable 17024d is folded on a spiral in the state of FIG. 183 (E).

  FIG. 184 is a schematic diagram of Example 111 according to the embodiment of the present invention, which is configured as a stereo earphone. The embodiment 111 of FIG. 184 has many points in common with the embodiment 109 of FIG. Example 111 is different from example 109 in that the through-hole 17024a is not provided, and the mounting is performed not by the space between the inside of the tragus 32 and the anti-auricular ring 28a but by insertion into the ear canal entrance 30a. It is a point that is done. For this reason, as shown in FIG. 184 (A), the cartilage conduction portion 18024 is configured to be relatively small. In addition, the embodiment 111 is basically configured to be used in a state where the ear canal is closed, and in order to temporarily open the ear canal, the cartilage conduction portion 18024 is deformed as described later to form a gap between the inner wall of the ear canal entrance 30a. Make a gap in As already mentioned, the external sound can reach the eardrum from the ear canal even in a small gap.

  FIG. 184 (B) is an enlarged front view of the earphone. As in the embodiment 109, the sheath 18024b is embedded and fixed below the cartilage conduction part 18024. Further, the upper end of the piezoelectric bimorph element 18025 is directly embedded and fixed below the cartilage conduction part 18024 without touching the inner wall of the sheath part 18024b. As in the embodiment 109, the lower end of the piezoelectric bimorph element 18025 can freely vibrate in the sheath 18024b, and its reaction is transmitted to the cartilage conduction part 18024, and good cartilage conduction to the ear cartilage is generated. As described above, in Example 111, the cartilage conduction part 18024 is deformed to temporarily open the ear canal to form a gap between the cartilage conduction part 18024 and the inner wall of the ear canal entrance 30a. In order to facilitate this deformation, the cartilage conduction part 18024 has a hollow part 18024g. A connection cable is led out from the lower end of the piezoelectric bimorph element 18025 and connected to a stereo mini plug through the lower end of the sheath portion 18024b in the same manner as in Example 109, but is not shown for simplicity. doing.

  FIGS. 184 (C) and (D) are B2-B2 cross-sectional views of FIG. 184 (B). FIG. 184 (C) shows a normal use state, in which the cartilage conduction part 18024 is inserted into the ear canal entrance 30a, thereby creating a closed ear canal state. FIG. 184 (C) shows a cross-sectional structure of a hollow portion 18024g. FIG. 184 (C) shows that the piezoelectric bimorph element 18025 vibrates in the direction (vibration direction) along the ear canal without touching the inner wall of the sheath 18024b. Such a structure is not shown, but is common to the embodiment 109 in FIG. 182 and the embodiment 110 in FIG. 183.

  FIG. 184 (D) shows a case where the external auditory canal is temporarily opened, and the cartilage conduction part 18024 is pushed by pulling the sheath 18024b downward or pushing the upper part of the cartilage conduction part 18024 downward. This shows a deformed state. As a result, a gap is formed between the upper inner wall of the ear canal entrance 30a and the upper part of the cartilage conduction part 18024, and the sound of the outside world indicated by the arrow 28g can reach the eardrum through the gap through the gap. The hollow portion 18024g facilitates the deformation of the cartilage conduction portion 18024 as in FIG. 184 (D). When the cartilage conduction part 18024 is pushed downward, the lower inner wall of the ear canal entrance 30a is deformed, and a gap is created between the upper inner wall of the ear canal entrance 30a and the upper part of the cartilage conduction part 18024.

  FIG. 185 is a schematic diagram of Example 112 according to the embodiment of the present invention, which is configured as a stereo earphone. Since the embodiment 112 of FIG. 185 has many points in common with the embodiment 111 of FIG. 184, the same portions are denoted by the same reference numerals and description thereof is omitted. The difference between the embodiment 112 and the embodiment 111 is that the cartilage conduction part 19024 is not deformed but is housed in the concha cavum 28e in order to realize the ear canal open state. In addition, as shown in FIGS. 185 (B) and (D), the lower part of the concha cavum 28e (above the interbead notch 28f) is particularly suitable as the part to be accommodated. Excellent cartilage conduction occurs even when the cartilage conduction part 19024 is accommodated in the concha space 28e, and the cartilage conduction can be realized with the external ear canal open as in the embodiment 109 of FIG.

  FIG. 185 (A) shows a state in which the cartilage conduction portion 19024 is inserted into the ear canal entrance 30a in the above-described embodiment 112 to realize cartilage conduction in a state where the ear canal is closed. On the other hand, FIG. 185 (B) shows a state in which the cartilage conduction part 19024 is pulled out from the ear canal entrance 30a and is housed in the concha cavum 28e to realize cartilage conduction with the ear canal open. 185 (A) and 185 (B), the cartilage conduction portion 19024 is formed in a spherical shape in order to facilitate sliding of the cartilage conduction portion 19024 and prevent pain. In addition, the cartilage conduction portion 19024 is made of a hard material because no deformation is assumed. However, it is also possible to use an elastic material instead, similarly to the embodiment 109 in FIG.

  FIGS. 185 (C) and (D) are cross-sectional views corresponding to the states of FIGS. 185 (A) and (B), respectively, as viewed from a cut surface similar to FIGS. 184 (C) and (D). . In FIG. 185 (C), it can be seen that the cartilage conduction part 19024 is inserted into the ear canal entrance 30a, and the cartilage conduction in the closed ear canal is realized. On the other hand, FIG. 185 (D) shows a state in which the cartilage conduction part 19024 pulled out from the external auditory canal entrance 30a is accommodated in the concha cavum 28e, thereby realizing the cartilage conduction with the external auditory canal open. Further, as shown in FIGS. 185 (C) and (D), the piezoelectric bimorph element 19025 vibrates without touching the inner wall of the sheath portion 19024b, and the structure thereof is different from that of the embodiments 109 to FIG. This is the same as in Example 111.

  The various features shown in each of the above embodiments are not necessarily unique to each embodiment, and the features of each embodiment may be appropriately combined with the features of other embodiments as long as the advantages can be utilized. They can be combined or rearranged. In addition, individual specific configurations in each embodiment can be replaced with other equivalent means. For example, in the embodiment 110 of FIG. 183, the piezoelectric bimorph element 17025 is fixed to the cartilage conduction part 17024, and the sheath part 17024b is configured to slide up and down. The sheath 17024b functions as a branch serving as a knob when attaching and detaching the cartilage conduction part 17024. The piezoelectric bimorph element 17025 itself is used as such a branch, and the piezoelectric bimorph 17025 itself is slid up and down to penetrate. The mouth may be opened and closed.

  Although the cartilage conduction part 19024 of the embodiment 112 of FIG. 185 is formed in a spherical shape, other shapes such as a chamfered cylindrical shape are possible. Further, the cartilage conduction part 17024 in the embodiment 110 of FIG. 183 is made of a hard material, but the guide groove 17024f of the sheath part 17024 may be made of a rigid body and the cartilage conduction part 17024 may be made of an elastic body. Good.

  FIG. 186 is a schematic diagram of Example 113 according to the embodiment of the present invention, which is configured as a stereo earphone. The embodiment 113 of FIG. 186 has many points in common with the embodiment 109 of FIG. Example 113 differs from Example 109 in that a portion of the cartilage conduction portion 20004 that comes into contact with the inside of the tragus 32 is thickened by providing the through-hole 20024a of the cartilage conduction portion 20004 at the rear in the state of being attached to the ear. This is a point that the piezoelectric bimorph element 20025 and the sheath portion 20024b are held in the thick portion 20024h. The embodiment 113 in FIG. 186 differs from the embodiment 109 in FIG. 182 in the vibration direction of the piezoelectric bimorph element 20025 as described later.

  FIG. 186 (A) is a front view of the right-ear earphone attached to the right ear 28, and schematically shows the above configuration. Note that the earphone for the right ear is shown by a broken line so that the relationship between the two can be easily understood. As is clear from the figure, the entire stereo earphone for the right ear has a shape like the lowercase letter “q” in the alphabet, and fits the shape of the right ear 28 so that the sheath portion 20024b extends from the concha cavity 28e to the intertragus notch 28f. It hangs below the right ear 28.

  The shape of the cartilage conduction portion 20004 will be described more specifically with reference to FIG. 186 (A). The thick portion 20004h has a linear outer shape corresponding to the relatively flat inside of the tragus 32, and the tragus 32 Improves the adhesion to the inside of the On the other hand, in response to the inside of the anti-earring 28a being curved, the outer shape of the thin-walled portion 20004i behind the cartilage conduction part 20004 is formed in an arc shape to improve the close contact with the inside of the anti-earring 28a. Note that the cartilage conduction part 20004 is made of an elastic body having a strong repulsive force in the same manner as in the embodiment 109, and the deformation due to the wearing causes the individual difference in the size of the mounting space between the inside of the tragus 32 and the anti-auricular ring 28a. In addition, the cartilage conduction portion 20004 is prevented from falling out of the mounting space due to the repulsive force accompanying the deformation. At this time, since the cartilage conduction portion 20004 is formed behind the thin portion 20024i, deformation for absorbing individual differences is facilitated. Note that, for simplicity, in FIG. 186 (A), the piezoelectric bimorph element 20025 disposed in the sheath portion 20024b is not shown, but its vibration direction crosses the ear canal entrance 30a as indicated by an arrow 20025b. Direction (direction substantially perpendicular to the central axis of the ear canal). 182. In the embodiment 109 of FIG. 182, the vibration direction of the piezoelectric bimorph element 16025 is set to a direction substantially parallel to the central axis of the ear canal.

  FIG. 186 (B) is a front view of the earphone for the right ear mounted on the right ear 28 as in FIG. 186 (A). 28 is omitted. The same parts are denoted by the same reference numerals, and description thereof will be omitted unless necessary. In FIG. 186 (B), the piezoelectric bimorph element 20025 arranged in the sheath 20024b is shown by a broken line. As described in detail below, the piezoelectric bimorph element 20025 has an upper end portion held by the thick portion 20004h and a lower end portion freely vibrating in the sheath portion 20024b without touching the sheath portion 20004b. . The vibration direction is parallel to the paper as indicated by the arrow 20025g. Therefore, the reaction of this vibration is transmitted to the cartilage conduction part 20004, and the vibration in the direction crossing the ear canal entrance 30a is applied to the ear cartilage around the ear canal entrance 30a including the tragus 32 as shown by an arrow 20025b in FIG. Is transmitted.

  FIG. 186 (C) is a side view of the earphone, which can be understood similarly to FIG. 182 (B). As shown in FIG. 186 (B), by using the thick portion 20004h, the piezoelectric bimorph element 20025 can be inserted relatively deeply into the cartilage conduction portion 20004 and supported. Then, as shown in FIG. 186 (C), the depth can be set so that the holding end 20025c of the piezoelectric bimorph element 20025 is higher than the lower end of the through hole 20004a (the inner edge thereof is indicated by a broken line). This ensures that the piezoelectric bimorph element 20025 is supported. Further, since the piezoelectric bimorph element 20025 has a structure that is thin in the vibration direction, the thickness of the sheath 20024b is set to the right ear by setting the vibration direction in a direction crossing the ear canal entrance 30a as shown by an arrow 20025b in FIG. 186 can be made thinner in the mounting direction (compare FIGS. 186 (B) and 186 (C)), so that even in a person with a narrow intertrabecular notch 28f, the sheath portion 20024b causes the intertrabecular notch from the concha space 28e. It can be worn so as to hang down below the right ear 28 over 28f. If the thickness of the sheath portion 20024b functioning as a branch portion is reduced in the direction of attachment to the right ear 28 in this manner, it is possible to attach the sheath to the shape of the right ear 28 regardless of individual differences.

  FIG. 186 (D) is an enlarged front view of the earphone. As is clear from the figure, the sheath portion 20024b is embedded and fixed below the cartilage conduction portion 22024, but can be relatively deeply implanted below the cartilage conduction portion 20004 by utilizing the thick portion 20024h. The upper end of the portion 22024b may be higher than the lower end of the through hole 20024a. Further, as described above, the piezoelectric bimorph element 20025 can also be buried and supported relatively deeply by utilizing the thick portion 20024h such that the holding end 20025c is located above the lower end of the through hole 20004a. As in the case of the embodiment 109 in FIG. 182, the upper end of the piezoelectric bimorph element 20025 is directly embedded and fixed in the thick portion 20004h without touching the inner wall of the sheath 22024b. In addition, the lower end of the piezoelectric bimorph element 20025 can freely vibrate in the sheath portion 20024b without touching the inner wall of the sheath portion 20024b, and the reaction is transmitted to the cartilage conduction portion 20004, thereby producing good cartilage conduction to the ear cartilage. . A connection cable 20004d is led out from the lower end of the piezoelectric bimorph element 20025, and penetrates through the lower end of the sheath 20024b and is connected to a stereo mini plug.

  FIG. 186 (E) is an enlarged side view of the earphone, and is an enlarged view of FIG. 186 (C). The same portions as those in FIG. 186 (D) are denoted by the same reference numerals and description thereof will be omitted unless necessary. As shown in FIG. 186 (D), the upper end of the piezoelectric bimorph element 20025 is directly embedded in and fixed to the thick portion 20004h without touching the inner wall of the sheath portion 20024b. Further, the lower end of the piezoelectric bimorph element 20025 can freely vibrate in the sheath 20024b without touching the inner wall of the sheath 20024b. 186 (D) and FIG. 186 (E) show that by making the vibration direction of the piezoelectric bimorph element 20025 transverse to the ear canal entrance 30a, the sheath 20024b can be made thinner in the mounting direction to the right ear 28. I can understand it more clearly.

  FIG. 187 is a schematic diagram of Example 114 according to the embodiment of the present invention, which is configured as a stereo earphone. The embodiment 114 of FIG. 187 has many points in common with the embodiment 113 of FIG. 186. 187 omits illustration of the internal structure of the piezoelectric bimorph element 20025 and the sheath 20004b, but these are the same as in FIG. 186. The embodiment 114 of FIG. 187 is different from the embodiment 113 of FIG. 186 only in the outer shape, and is characterized in that a guide hook 20004j is added to the sheath portion 20004b.

  187 (A) and (B) are front views of the right-ear earphone in a state of being attached to the right ear 28, as in FIGS. 186 (A) and (B). A guide hook 20024j is provided at a position corresponding to the inter-bead notch 28f inside (ear side) of the sheath portion 20024b. The guide hooks 20024j stably position the sheath portion 20024b on the intertrabecular notch 28f when attached, so that the sheath portion 20024b fits in close contact with the intertrabecular notch 28f, and the earbud for the right ear has a concha of the concha 28e so as to be harder to fall off.

  FIG. 187 (C) shows a side view of the earphone in a manner similar to FIG. 186 (C). As shown in the figure, the guide hook 20024j is provided at a position on the ear side to be worn and not visible from the outside in the worn state. FIG. 187 (D) is an enlarged front view of the earphone, which is rotated 180 degrees from FIG. 187 (B) so that the inner guide hook 22024j can be seen. FIG. 187 (E) is an enlarged side view of the earphone, and is an enlarged view of FIG. 187 (C).

  FIG. 188 is a schematic diagram of Example 115 according to the embodiment of the present invention, and is configured as a stereo earphone. Since the embodiment 115 of FIG. 188 has many points in common with the embodiment 112 of FIG. 185, the corresponding parts are given the same numbers in the last two digits, and description thereof is omitted. Embodiment 115 is different from Embodiment 112 in that the cartilage conduction part 21024 is always used in a state of being located in the lower part of the concha cavity 28e, and the switching between the closed state and the open state of the ear canal is performed by the cartilage conduction part 21024 and the lever. This is performed by moving the movable ear plug unit 21024k connected by the 21024m. As in the case of the embodiment 112, good cartilage conduction occurs even in a state where the cartilage conduction part 21024 is accommodated in the concha space 28e, and the cartilage conduction in the open and closed ear canal can be realized.

  FIG. 188 (A) is a front view of the right-ear earphone attached to the right ear 28 in the same manner as FIG. 185 (A), and the right-ear earphone is shown by a broken line so that the relationship between them can be easily understood. . FIG. 188 (A) shows that the movable earplug portion 21024k is retracted from the external auditory canal entrance 30a so as to be in contact with the inner wall of the anti-earring 28a, thereby realizing the external ear canal opening state. At this time, the movable ear plug portion 21024k contacts the inner wall of the anti-ear ring 28a and the bottom wall of the concha cavity 28e, and functions as an auxiliary cartilage conduction portion that transmits vibration transmitted from the cartilage conduction portion 21024 via the lever 21024m to the otic cartilage. . Further, the movable ear plug portion 21024k contacts the inner wall of the anti-ear ring 28a and the bottom wall of the concha cavity 28e, thereby stabilizing the wearing and making it difficult for the right earphone to fall off.

  On the other hand, FIG. 188 (B) shows a state where the movable earplug part 21024k is moved by the clockwise rotation of the lever 21024m and inserted into the ear canal entrance 30a to realize the ear canal closed state. Thereby, an external auditory canal closing effect is generated, and external noise is shut off. FIG. 188 (C) and FIG. 188 (D) correspond to FIG. 188 (A) and FIG. 188 (B), respectively. It is the front view which omitted illustration.

  FIGS. 188 (E) and 188 (F) are side views of the earphones corresponding to FIGS. 188 (C) and 188 (D), respectively. In FIG. 188 (E) in the ear canal open state, since the movable ear plug part 21024k is retracted, the external sound indicated by the arrow 28g can enter the ear canal entrance 30a and reach the eardrum. On the other hand, in FIG. 188 (F) in a state where the ear canal is closed, since the movable ear plug portion 21024k is inserted into the ear canal entrance 30a, an external ear canal closing effect is generated and external noise is cut off. The direction of vibration of the piezoelectric bimorph element 21025 in the embodiment 115 in FIG. 188 is the same as that in the embodiment 113 in FIG. 186. The internal structure of the sheath 21024b is the same as that of the embodiment 113 of FIG. 186, but is not shown in order to avoid complication.

  FIG. 189 is a schematic diagram of Example 116 according to the embodiment of the present invention, which is configured as a stereo earphone. Since the embodiment 116 of FIG. 189 has many points in common with the embodiment 115 of FIG. Embodiment 116 is different from embodiment 115 in that the movable earplug 22024k for switching between the ear canal closed state and the open state is not a rotary type using a lever but a folding type using the elasticity of an elastic support portion 22024m. That is.

  FIG. 189 (A) is a front view of the right-ear earphone attached to the right ear 28 in the same manner as FIG. 188 (A), and the right-ear earphone is shown by a broken line so that the relationship between the two can be easily understood. . FIG. 189 (A) shows a state in which the movable earplug portion 22024k is located with a slight gap in front of the ear canal entrance 30a, and the ear canal is opened. In this state, air conduction sound from the outside enters the ear canal entrance 30a through the small gap. Furthermore, the air conduction sound generated by the vibration of the movable earplug 22024k reaches the eardrum from the external auditory canal entrance 30a and functions mainly as an auxiliary audio output unit that supplements the treble range.

  On the other hand, FIG. 189 (B) shows a state in which the movable earplug part 22024k is slightly bent by the elasticity of the elastic support part 22024m and inserted into the ear canal entrance 30a to realize the ear canal closed state. Thereby, an external auditory canal closing effect is generated, and external noise is shut off. FIG. 189 (C) and FIG. 189 (D) correspond to FIG. 189 (A) and FIG. 189 (B), respectively. It is the front view which omitted illustration.

  FIG. 189 (E) and FIG. 189 (F) are side views of the earphone corresponding to FIG. 189 (C) and FIG. 189 (D), respectively. I understand well. More specifically, in FIG. 189 (E) in the state where the ear canal is opened, since the movable ear plug part 22024k is withdrawn from the ear canal entrance 30a with a slight gap, the sound of the external world indicated by the arrow 28g is transmitted from the ear canal entrance 30a. You can enter and reach the eardrum. Further, as described above, the air conduction sound from the movable ear plug 22024k also reaches the eardrum from the external auditory canal entrance 30a and supplements the cartilage conduction from the cartilage conduction part 22024. On the other hand, in FIG. 189 (F) in the ear canal closed state, since the movable ear plug 22024k is inserted into the ear canal entrance 30a, an external ear canal closing effect is generated and external noise is cut off. The direction of vibration of the piezoelectric bimorph element 22025 in the embodiment 116 of FIG. 189 is the same as that of the embodiment 113 of FIG. 186. The inner structure of the sheath 22024b is the same as that of the embodiment 113 of FIG. 186, but is not shown in order to avoid complication.

  The implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, in the configuration of the embodiment 116 in FIG. 189, the movable earplug 22024k and the cartilage conduction part 22024 are connected by the elastic support part 22024m. Instead, the movable earplug 22024k and the cartilage conduction part are connected. The 22024 and the elastic support portion 22024m may be integrally formed of an elastic material. In the configuration of the embodiment 115 shown in FIG. 187, the guide hook 20004j is located below the cartilage conduction part 20004. Instead, the lower part of the cartilage conduction part 20004 is partially cut out, and the notch part is formed. May be configured so that the guide hooks 20004j can enter into the holes. However, also in this case, the guide hooks 20024j are supported by the sheath 22024b or are integrally formed with the sheath 22024b.

  FIG. 190 is a schematic diagram of Example 117 according to the embodiment of the present invention, which is configured as a stereo earphone. The embodiment 117 shown in FIG. 190 has many points in common with the embodiment 113 shown in FIG. 186. Note that in FIG. 190, illustration in FIG. 186 is partially omitted to avoid complexity. The embodiment 117 of FIG. 190 is different from the embodiment 113 of FIG. 186 in that a slit 23024a is provided in place of the through-hole so that music or the like can be enjoyed by cartilage conduction without blocking external sounds. ing. The slit 23024a is also significant as a structure for supporting the sheath 23024b on the cartilage conduction part 23024 as described later. Further, in Example 117 of FIG. 190, an adhesive sheet 23024i for attaching the cartilage conduction part 23024 to the concha cavity 28e for preventing falling off and an earplug part 23024k for closing the external auditory canal entrance 30a as necessary are provided. .

  FIG. 190 (A) is a front view of a right-ear earphone attached to the right ear 28 in the same manner as FIG. 186, and schematically shows the above configuration. Also in FIG. 190 (A), the earphone for the right ear is shown by a broken line so that the relationship between them can be easily understood.

  FIG. 190 (B) is a front view of the earphone for the right ear mounted on the right ear 28 similar to FIG. 190 (A). 28 is omitted. The same parts are denoted by the same reference numerals, and description thereof will be omitted unless necessary. In FIG. 190B, the adhesive sheet 23024i and the earplug 23024k disposed on the ear side (the back side in the paper) are shown by broken lines. As is clear from FIG. 190 (B) with reference to the right ear 28 of FIG. 190 (A), the adhesive sheet 23024i is provided at a position which is in close contact with the concha cavum 28e behind the ear canal entrance 30a. . In addition, since the earplug 23024k is not provided with the adhesive sheet 23024i, the earplug 23024k can be easily attached to and detached from the ear canal entrance 30a. The earplug 23024k can be attached and detached by utilizing the elasticity of the ear cartilage. The earplug 23024k can be pushed into the external auditory canal entrance 30a to close it, and the earplug 23024k can be removed from the external auditory canal entrance 30a. If a small gap is made, external sounds can be guided into the ear canal. In the latter case, even when the earplug 23024k is floating from the external auditory canal entrance 30a, since the cartilage conduction part 23024 is in close contact with the concha cavity 28e by the adhesive sheet 23024i, good cartilage conduction is obtained without falling off. be able to. The detachment operation of the earplug 23024k can be performed by pinching the sheath 23024b.

  FIG. 190 (C) is an enlarged view of FIG. 190 (B). As is clear from the drawing, the right side in the drawing of the slit 23024a is a connecting portion 23024h, into which the holding end 23025c of the piezoelectric bimorph element 23025 is inserted. By providing the slit 23024a, the sheath 23024b is inserted from the outside so as to cover the connection 23024h. By inserting the piezoelectric bimorph element 23025 inside the connection part 23024h in this way, while holding the piezoelectric bimorph element 23025 in the cartilage conduction part 23024, by inserting the sheath part 23024b on the outside so as to cover the same connection part 23024h, The sheath 23024b can be securely coupled to the cartilage conduction part 23024, and protects the piezoelectric bimorph element 23025 inside the sheath 23024b without contacting it.

  FIG. 190 (D) is an enlarged side view of the earphone for the right ear. In the figure, the left side corresponds to the ear canal entrance 30a side, the near side of the paper is the back of the head in the mounted state, and the far side of the paper is the face in the mounted state. As is clear from FIG. 190 (D), an adhesive sheet 23024i is provided at a position in close contact with the concha region 28e behind the ear canal entrance 30a. The adhesive sheet 23024i can be repeatedly attached to the concha region 28e, and can be replaced with a new one by peeling it off from the cartilage conduction part 23024 when the adhesive strength is reduced or becomes dirty. As the adhesive sheet 23024i, for example, "Opsite Gentle Roll" (registered trademark), which is a roll film using a silicone adhesive, may be used.

  FIG. 191 is a conceptual perspective view of the embodiment 117 shown in FIG. 190, which is rotated 180 degrees from the state of FIG. 190 (C) so that the inner ear plug 23024k and the adhesive sheet 23024i can be seen. . In FIG. 191, for convenience of explanation of the structural relationship, each part is simplified and shown as a rectangular parallelepiped or a cylinder. The contour is as shown in FIG. 190, and is smooth and chamfered so as to be adapted to the contact with the ear cartilage and the external auditory canal entrance 30a.

  FIG. 191 (A) is an exploded view of a state before the sheath 23024b is inserted into the connection 23024h in order to particularly show the relationship between the connection 23024h and the piezoelectric bimorph element 23025 and the sheath 23024b. As is clear from FIG. 191 (A), the piezoelectric bimorph element 23025 is first inserted into the connection part 23024h. Thus, the piezoelectric bimorph element 23025 is held by the cartilage conduction part 23024. The sheath 23024b is connected to the cartilage conduction part 23024 by inserting the sheath 23024b over the outside so as to cover the same connection part 23024h. At this time, the connection cable 23024d is led out from the hole 23024n to a lower portion of the sheath 23024b. Thus, the sheath 23024b can be securely connected to the cartilage conduction part 23024, and the piezoelectric bimorph element 23025 can be protected without contacting the sheath 23024b. FIG. 191 (B) shows, for reference, a reduced perspective view of the completed type formed by putting the sheath 23024b over the outside of the connecting part 23024h and inserting the same.

  FIG. 192 is a schematic sectional view of Example 118 according to the embodiment of the present invention, which is configured as a stereo earphone. Since the embodiment 118 of FIG. 192 has many points in common with the embodiment 111 of FIG. Note that in FIG. 192, some illustrations in FIG. 184 are omitted to avoid complexity. 192 is different from Example 111 in FIG. 184 in that a protrusion 24024p is formed on the surface of a cartilage conduction part 24024 made of an elastic body, and FIG. Instead of making the ear canal open temporarily by pushing or pulling with a human hand as in the above, the stereo earphone can be stably mounted with the ear canal open.

  FIG. 192 (A) shows a state in which the cartilage conduction part 24024 is inserted so that the tip of the projection 24024p lightly contacts the ear canal entrance 30a in a natural state with no load. In this state, the cartilage conduction part 24024 is stably attached to the ear canal entrance 30a by friction due to contact of the tip of the ear canal entrance 30a and rebound restoring force due to slight elastic deformation thereof. In addition, since the protrusion 24024p is projected outwardly and inclined so as to spread outward by a frictional force between the tip thereof and the ear canal entrance 30a when a force in the direction of pulling out is applied to the cartilage conduction part 24024, the protrusion 24024p is protruded so as to be tilted outward. It has a structure that is more difficult to fall off. FIG. 192 (B) is a cross-sectional view taken along line B2-B2 in FIG. 192 (A), in which the tip of the projection 24024p is in contact with the ear canal entrance 30a and the gap between the cartilage conduction part 24024 and the external ear canal entrance 30a in another portion. It indicates that the sound of the outside world indicated by the arrow 28g can enter and reach the eardrum.

  FIG. 192 (C) shows a state in which the cartilage conduction part 24024 is strongly pushed into the external auditory canal entrance 30a. The state which came to contact the ear canal entrance 30a is shown. FIG. 192 (D) is a cross-sectional view taken along line B2-B2 in FIG. 192 (C), and shows a state in which the cartilage conduction part 24024 is in contact with the ear canal entrance 30a on the entire circumference thereof, so that the ear canal entrance 30a is closed. . Naturally, even in this state, the cartilage conduction part 24024 is stably attached to the ear canal entrance 30a.

  As described above, in the embodiment 118 of FIG. 192, as shown in FIG. 184 (D) of the embodiment 111, even if the external auditory canal is not opened temporarily by pushing or pulling with a human hand. By changing the insertion state between the state of (A) and (C) and the state of FIG. 192 (B) and (D), the stereo earphone is stably mounted in the ear canal open state and the ear canal closed state, respectively. be able to.

  FIG. 193 is a schematic diagram and a block diagram of Example 119 according to the embodiment of the present invention, and are configured as a stereo earphone and a headset main body to which the stereo earphone is connected. The stereo earphone in the embodiment 119 in FIG. 193 has many parts in common with the embodiment 113 in FIG. 186, and the headset main body has many parts in common with the headset main body in the embodiment 89 in FIG. 139. Are denoted by the same reference numerals and description thereof is omitted. In FIG. 193, some illustrations are omitted, such as portions having a low association. The embodiment 119 of FIG. 193 is different from the embodiments 113 and 89 in that one end of the low-frequency piezoelectric bimorph element 25025a and one end of the middle-high frequency piezoelectric bimorph element 25025b are supported by the common cartilage conduction part 25024, respectively. The other end is capable of freely vibrating, and the low-frequency piezoelectric bimorph element 25025a and the middle-high frequency piezoelectric bimorph element 25025b are driven from separate equalized channels.

  As already described, in the example of the actual measurement data shown in FIG. 79, when comparing the sound pressure in the non-contact state shown by the solid line with the sound pressure at the contact pressure of 250 weight grams shown by the dashed line, the main sound In the frequency band (500 Hz to 2300 Hz), the sound pressure in the external auditory canal at a depth of 1 cm from the entrance of the external auditory canal is increased by at least 10 dB due to the contact.

  In the audio field such as stereo earphones, it is desirable that the sound quality covers a higher frequency range. However, in the example of the actual measurement data shown in FIG. At about 3 kHz to 7 kHz, an increase in sound pressure of at least about 5 dB is recognized. Since FIG. 79 is merely an example of actual measurement data, strict quantitative evaluation is meaningless. However, from FIG. 79, at least in cartilage conduction, there is a sensitivity characteristic covering not only the main frequency band of voice but also a higher frequency region.

  The embodiment 119 of FIG. 193 is configured by focusing on the characteristics of cartilage conduction as described above. As shown in FIG. 119 (A), in addition to the first sheath portion 25024b, the second sheath portion 25024q is formed of cartilage. The low-frequency piezoelectric bimorph element 25025a and the mid-high frequency piezoelectric bimorph element are provided in the conduction portion 25024, and as shown in FIG. One end of each 25025b is held by the cartilage conduction part 25024. The length of the low-frequency piezoelectric bimorph element 25025a is longer than that of the middle and high-frequency piezoelectric bimorph element 25025b.

  As shown in FIG. 193 (A), the first sheath 25024b fits into the interbead notch 28f, while the second sheath 25024q fits in the front notch 28h (see the ear configuration diagram in FIG. 80 (A)). The position and straddle of the tragus 32 enhance positioning and stability when the cartilage conduction part 25024 is attached. In addition, since the lower part of the ear ring leg in front of the front notch 28h is an empty space due to the structure of the ear, it is suitable for providing the second sheath 25024q.

  As shown in the block diagram of FIG. 193 (C), the audio output from the audio circuit 8338 is separated into a low-frequency signal and a mid-high frequency signal, and the low-frequency equalizer / amplifier 25040a and the mid-high frequency equalizer are separately provided on different channels. / Equalized and amplified by the amplifier 25040b. Signals from the low-band equalizer / amplifier 25040a and the middle-high band equalizer / amplifier 25040b are supplied by the first channel connection portion 25046a and the second channel connection portion 25046b, respectively, to the low frequency piezoelectric bimorph element 25025a and the middle high frequency piezoelectric bimorph element 25025b. To drive these. One end of the low-frequency piezoelectric bimorph element 25025a and one end of the middle and high-frequency piezoelectric bimorph element 25025b are held by the common cartilage conduction part 25024, so that the cartilage conduction part 25024 is obtained by mixing both vibrations physically by cartilage conduction. Conducts to cartilage. As a result, it is possible to listen to the audio signal in the band of at least about 200 Hz to 7 kHz (see an example of the actual measurement data shown in FIG. 79) which can be covered by the cartilage conduction. The embodiment 119 shown in FIG. 193 is such that when realizing such a relatively wide area of cartilage conduction, two piezoelectric bimorph elements having different lengths share the assigned band, and the piezoelectric bimorph element and the equalizer corresponding thereto can be used. It increases the degree of freedom and facilitates achieving better sound quality.

  Note that an example in which a cartilage conduction vibration unit is configured using a plurality of cartilage conduction vibration sources as described above is also shown in FIG. 94 (D). Specifically, in the cordless handset 5881c of the third modification of the embodiment 62 in FIG. 94 (D), the piezoelectric bimorph element 2525g assigned to the bass side and the piezoelectric bimorph element 2525h assigned to the treble side are brought into contact with each other on the vibration surface side. A plurality of cartilage conduction vibration sources having different frequency characteristics are complementarily attached by directly affixing them to the inside of the cartilage conduction part 5824c and directly transmitting the vibrations of the piezoelectric bimorph element 2525g and the piezoelectric bimorph element 2525h to the cartilage conduction part 5824c. An example is shown in which the function is performed to improve the frequency characteristics of cartilage conduction.

  The implementation of the features of the present invention described above is not limited to the embodiment in the above-described embodiment, and can be implemented in other embodiments as long as the advantages can be enjoyed.Examples using an adhesive sheet, The configuration is not limited to the configuration of the embodiment 117 shown in FIGS. 189 and 190. For example, in Example 112 shown in FIG. 185, an adhesive sheet is provided on at least the surface of the cartilage conduction part 19024 on the otochondral contact side hemisphere, and in the states of FIGS. 185 (A) and (C), the cartilage conduction part 19024 is connected to the ear canal entrance 30 a. 185, and in the state of FIGS. 185 (B) and (D), the cartilage conduction portion 19024 may be adhered to the concha cavum 28e.

  In addition, an example in which music or the like is enjoyed by cartilage conduction without interrupting the sound of the outside world is not limited to the one provided with the slit 23024a as in the embodiment 117 shown in FIGS. 189 and 190. That is, as long as the piezoelectric bimorph element 23025 can be inserted inside the connection portion 23024h and the sheath 23024b can be provided so as to cover the same connection portion 23024h from the outside, the embodiment 117 for introducing the sound of the outside world can be used. It is also possible to provide a larger hole instead of the parallel groove-shaped slit as described above. Further, the configuration of the sheath 23024b that covers the connection portion 23024h into which the piezoelectric bimorph element 23025 is inserted is not limited to the configuration in which the sheath 23024b is inserted from below as in Embodiment 117, and the connection portion 23024h is sandwiched on both sides from front and rear or left and right. Such a configuration may be used.

  Further, in the embodiment 119 of FIG. 193, in order to realize a relatively wide area of cartilage conduction, two piezoelectric bimorph elements having different lengths and equalizers for the respective piezoelectric bimorph elements share the band. By devising the vibration source and the equalizer, cartilage conduction for audio including a band higher than the main frequency band of voice of about 3 kHz to 7 kHz may be realized.

  The features in the various embodiments described above are not limited to those individually employed in the embodiments, and may be combined into one embodiment. For example, the features of the adhesive sheet and the earplugs shown in FIG. 190 can be adopted in the embodiment 119 of FIG. 193. In this case, in the embodiment 119, a slit or the like shown in FIG. 190 is employed instead of the through-hole shown in FIG. 193. The configuration in which the piezoelectric bimorph element 23025 is inserted into the connection part 23024h shown in the embodiment 117 of FIG. 190 and the sheath 23024b is put thereon is the same as the first sheath 25024b in the embodiment 119 of FIG. 193. It can also be adopted as the configuration of the two sheath portion 25024q.

  FIG. 194 is a schematic diagram of Example 120 according to the embodiment of the present invention, which is configured as a stereo earphone. FIG. 194 (A) is a front view (corresponding to the side of the face) of the right-ear earphone attached to the right ear 28. For simplicity, illustration of faces other than the right ear 28 is omitted, only the right ear is described, and description of the left earphone having the same configuration is omitted. In the same manner as the embodiment 109 in FIG. 182 and the like, in the embodiment 120 in FIG. 194, the earphone for the right ear and the earphone for the left ear are connected by a stereo mini plug to a stereo mini jack for external output of a mobile phone or a portable music terminal. Can be connected to In Example 120 of FIG. 194, the cartilage conduction part is adhered to the ear cartilage with an adhesive sheet in the same manner as Example 117 of FIG. 190. In Example 117, the cartilage conduction part is adhered to the inside of the ear cartilage. On the other hand, Example 120 is different in that the cartilage conduction part is brought into close contact with the outside of the ear cartilage.

Specifically, in Example 117, as shown in FIG. 190 (A), the cartilage conduction part 23024 is in close contact with the concha cavum 28e inside the ear. (In FIG. 190 (A), the cartilage conduction part 23024 is shown by a broken line for convenience of explanation, but the cartilage conduction part 23024 in the mounted state is visible from the side of the face.) In contrast, in Example 120, As is clear from FIG. 194 (A), the cartilage conduction part 26024 of the earphone for the right ear is brought into close contact with the ear cartilage with an adhesive sheet on the rear part of the outer side of the pinna attachment part which is the base of the ear. As a result, as shown in FIG. 194 (A), most of the cartilage conduction portion 26024 is hidden behind the auricle in the ear 28 (shown by a broken line), and a slightly lower end portion is in a worn state in which it is seen through the auricle.

  In such a wearing style of the cartilage conduction part 26024, there is no portion that covers the pinna, and the ear hole is opened. In addition, despite the placement of the cartilage conduction part outside the ear cartilage, the cartilage conduction part efficiently transmits cartilage conduction in a retracted state, so that when wearing glasses, the vine of the glasses and the cartilage conduction part are There is an advantage that interference can be prevented and the device can be used irrespective of wearing glasses.

FIG. 194 (B) is a view of the right ear 28 viewed from the back of the head. The cartilage conduction part 26024 of the earphone for the right ear has the rear part of the outer part 1828 of the auricle attachment part at the base of the ear 28 and the temporal bone. It can be seen that the ear cartilage is in close contact with the mastoid 8623a. The cartilage conduction part 26024 is provided with an adhesive sheet, and is adhered to the rear part of the outside 1828 of the pinna attachment part to prevent the cartilage conduction part from dropping off.

  FIG. 194 (C) is a front cross-sectional view of the earphone, as viewed from the direction corresponding to FIG. 194 (A). As can be seen from the cross-sectional view of FIG. 194 (C), the cartilage conduction part 26024 has a structure in which the upper part is made of an elastic material and the sheath part 26024b made of a hard material is covered. Further, the upper end of the piezoelectric bimorph element 26025 is directly embedded and fixed in the upper elastic body of the cartilage conduction part 26024 without touching the inner wall of the sheath 26024b. On the other hand, the lower end of the piezoelectric bimorph element 26025 can freely vibrate within the sheath 26024b, and its reaction is transmitted to the upper elastic body of the cartilage conduction part 26024, thereby producing good cartilage conduction to the adhered otocartilage. A connection cable 26024d is led out from the lower end of the piezoelectric bimorph element 26025, and penetrates the lower end of the sheath 26024b and is connected to a stereo mini plug. This internal structure is common to the embodiment 182 of FIG. 182 and the like.

  FIG. 194 (D) is a cross-sectional view in a direction rotated by 90 degrees from the cross-sectional view of FIG. 194 (C) and is viewed from a direction corresponding to FIG. 194 (B). The arrow 26025g indicates the vibration direction of the piezoelectric bimorph element 26025, which is parallel to the paper surface, that is, the direction along the ear canal. An adhesive sheet 26024i is provided on the auricle side of the upper elastic body of the cartilage conduction part 26024, whereby the cartilage conduction part 26024 is adhered to the auricle side of the base of the ear 28. Note that the adhesive sheet 26024i is replaceable, and if the adhesive strength is weakened more than a predetermined number of times for attachment and detachment to the ear, the adhesive sheet 26024i can be peeled off from the upper elastic body of the cartilage conduction part 26024 and replaced with a new one.

  FIG. 194 (E) shows a modification of the embodiment 120, and is a cross-sectional view of the cartilage conduction part 26024 viewed from the same direction as FIG. 194 (D). In the modified example, the range in which the adhesive sheet 26024r is provided is expanded not only to the upper elastic part of the cartilage conduction part 26024 but also to the lower sheath part 26024b.

  FIG. 195 is a schematic diagram of Example 121 according to the embodiment of the present invention, which is configured as a stereo earphone. Since the relationship with the ear in the embodiment 121 of FIG. 195 is common to that of the embodiment 120 of FIG. 194, the illustration is omitted. Also, the structure is common in many respects to the embodiment 120. Therefore, the same reference numerals are given to the common parts, and the description will be omitted unless necessary. 195 is different from the embodiment 120 of FIG. 194 in the outer shape of the upper elastic body portion of the cartilage conduction part 27024 and the shape of the adhesive sheet 27024i, and other configurations including the sheath part 27024b and The internal structure is the same as that of the embodiment 120.

  FIG. 195 (A) is a cross-sectional view in the direction corresponding to FIG. 194 (C) of the embodiment 120. The upper elastic part of the cartilage conduction part 27024 has a curved surface 27024s so as to fit around the base of the ear 28. Has become. FIG. 195 (B) is a cross-sectional view of Example 120 corresponding to FIG. 194 (D), and the curved surface 27024s of the upper elastic body portion of the cartilage conduction part 27024 fits to the outside of the pinna near the attachment part. Shape. Along with this, the adhesive sheet 27024i is also pasted in a curved shape. The adhesive sheet 27024i can be replaced in the same manner as in Example 120.

  FIGS. 195 (C) and (D) show B1-B1 sectional views in the directions of FIGS. 195 (A) and (B), respectively. As can be seen from FIGS. 195 (C) and (D), the curved surface 27024s is formed in the gap formed between the rear part of the outer pinna attachment portion 1828, which is the base of the ear 28, and the temporal bone mastoid 8623a. It is shaped to fit and fit. The pressure-sensitive adhesive sheet 27024i is provided not only on the pinna side but also on the tip end in the fitting direction. Note that the adhesive sheet 27024i is not provided on the side of the temporal bone mastoids 8623a that opposes the auricle, so as not to impede the freedom of vibration transmission to the auricle side, and at the base of the auricle and the temporal bone milk. This prevents discomfort that the like projection 8623a is adhered.

  FIG. 196 is a schematic diagram of Example 122 according to the embodiment of the present invention, which is configured as a stereo earphone. Since the embodiment 122 of FIG. 196 has many parts in common with the embodiment 120 of FIG. 194, the common parts are given the same numbers or the same numbers with the last two digits and the suffix alphabet, and the description is omitted unless necessary. . The embodiment 122 of FIG. 196 differs from the embodiment 120 of FIG. 194 in that the upper elastic part of the cartilage conduction part is bent relative to the sheath.

  FIG. 196 (A) is a front view (corresponding to the side of the face) of the earphone for the right ear corresponding to FIG. 194 (A) of the embodiment 120. As can be seen from FIG. 196 (A), in the cartilage conduction portion 28024 of the earphone for the right ear, the upper elastic portion is bent with respect to the sheath portion 28024b, and this bending causes the entire cartilage conduction portion 28024 to be attached to the base of the right ear 28. It fits better around you. FIG. 196 (B) is a cross-sectional view corresponding to FIG. 194 (C) of Example 120. The upper end of the piezoelectric bimorph element 28025 is obliquely embedded and fixed in the upper elastic body of the cartilage conduction part 28024. Correspondingly, the sheath portion 28024b made of a hard material is obliquely covered by the upper elastic body of the cartilage conduction portion 28024 so that the piezoelectric bimorph element 28025 does not touch the inner wall.

  FIG. 196 (C) is a front view showing the left ear earphone together with the left ear 30, and is shown symmetrically according to the right ear earphone in FIG. 196 (A). As can be seen from FIG. 196 (C), also in the cartilage conduction portion 29024 of the left ear earphone, the upper elastic body portion is bent with respect to the sheath portion 29024b. It fits better around the base. FIG. 196 (D) is a cross-sectional view of the cartilage conduction part 29024 in the left ear earphone of FIG. 196 (C), and is shown symmetrically according to the cross-sectional view of the right ear earphone in FIG. 196 (B). I have. The internal structure is the same as that of the cartilage conduction portion 28024 of the earphone for the right ear except that the bending direction is reversed, and therefore the description is omitted.

  In Example 122, in the cartilage conduction part for right ear 28024 of FIG. 196 (B) and the cartilage conduction part for left ear 29024 of FIG. 196 (D), the adhesive sheet ( (Not shown). As a result, the cartilage conduction part 28024 for the right ear and the cartilage conduction part 29024 for the left ear are adhered to the base of the right ear 28 and the left ear 30 on the back side of the auricle, respectively. As described above, in Example 122, the cartilage conduction part 28024 for the right ear and the cartilage conduction part 29024 for the left ear are both symmetrical in the bending direction and the adhesive sheet installation direction. Ear earphones can be bonded to the right ear 28 and the left ear 30, respectively, without being confused.

  In the same manner as in Example 122, in Example 121 shown in FIG. 195, the curved surface 27024s is bilaterally symmetric between the cartilage conduction part for right ear 27024 and the cartilage conduction part for left ear (not shown). Correspondingly, the shape of the adhesive sheet 27024i is symmetrical between the cartilage conduction part for the right ear and the cartilage conduction part for the left ear. Therefore, also in the embodiment 121 shown in FIG. 195, the right ear earphone and the ear earphone can be bonded to the right ear 28 and the left ear (not shown) without being confused with each other. In addition, in Example 121, the curved surface 27024s is symmetrical between the cartilage conduction part for the right ear and the cartilage conduction part for the left ear. Therefore, when the adhesive sheet 27024i is exchanged, the right and left cartilage conduction parts are not confused. Can be replaced.

  FIG. 197 is a schematic diagram of Example 123 according to the embodiment of the present invention, which is configured as a stereo earphone. Since the embodiment 123 in FIG. 197 has many parts in common with the embodiment 120 in FIG. 194, the common part is given the same number or the same number with the last two digits and the suffix alphabet, and the description is omitted unless necessary. . The difference between the embodiment 123 of FIG. 197 and the embodiment 120 of FIG. 194 is the vibration direction of the piezoelectric bimorph element 30025.

  FIGS. 197 (A) to (C) of the embodiment 123 correspond to FIGS. 194 (A) to (C) of the embodiment 120, respectively. However, as indicated by an arrow 30025g in FIG. 197 (C), the vibration direction of the piezoelectric bimorph element 300025 is parallel to the paper surface, that is, a direction crossing the ear canal. As shown in FIG. 197 (D), an adhesive sheet 30024i is provided on the pinna side of the upper elastic body of the cartilage conduction part 30024, and the cartilage conduction part 30024 is connected to the ear 28 in the same manner as in Example 120. It is adhered to the pinna side of the base. Also in Example 123, the adhesive sheet 30024i is replaceable, and if the adhesive force is reduced more than a predetermined number of times for attachment and detachment to the ear, the adhesive sheet is peeled off from the upper elastic body of the cartilage conduction part 26024 and a new one is replaced. Can be.

  The features in the various embodiments described above are not limited to those individually adopted in the individual embodiments, and various modifications are possible as long as the advantages are enjoyed. It can also be. For example, in Embodiments 120 to 123 shown in FIGS. 194 to 197, the upper elastic portion of the cartilage conduction part can be made of a hard material. Further, by combining the embodiment 121 shown in FIG. 195 with the embodiment 122 shown in FIG. 196, a curved surface is provided in the upper elastic portion of the cartilage conduction portion, and the upper elastic portion of the cartilage conduction portion is moved relative to the sheath portion. It is also possible to bend.

  FIG. 198 is a sectional view of Example 124 according to the embodiment of the present invention, which is configured as stereo headphone 31081. The stereo headphone 31081 has a right ear audio output unit 31024 and a left ear audio output unit 31026. The right ear audio output unit 31024 and the left ear audio output unit 31026 have ear pads 31024a and 31026a made of an elastic body, respectively, and electromagnetic vibrators 31025a and 31025b are embedded inside thereof. Furthermore, the right ear audio output unit 31024 and the left ear audio output unit 31026 are provided with air conduction-generating electromagnetic speakers 31024b and 31026b, respectively, at portions surrounded by the ear pads 31024a and 31026a. . With the above configuration, the ear pad 31024a and the electromagnetic vibrator 31025a constitute a cartilage conduction part for the right ear that contacts the inner side of the pinna of the right ear. Similarly, the ear pad 31026a and the electromagnetic vibrator 31025b constitute a cartilage conduction part for the left ear that comes into contact with the inner side of the pinna of the left ear. As described above, the embodiment 124 is configured by using both the cartilage conduction part and the air conduction speaker, and the frequency characteristics of the air conduction speaker are reinforced by the cartilage conduction part that is strong in a low frequency range.

  FIG. 199 is an enlarged sectional view and a block diagram of the internal configuration of the right ear audio output unit 31024 in the embodiment 124 of FIG. 198. The stereo headphone 31081 receives an audio signal from a portable music player, a mobile phone, or the like by the short-range communication unit 31087 provided in the audio output unit 31024 for the right ear. The stereo headphone 31081 can operate in any one of the “normal mode”, the “noise cancel mode”, and the “ambient sound introduction mode” according to the setting made by operating the operation unit 31009.

  In the “normal mode”, an audible signal input from the short-range communication unit 31087 is transmitted from the control unit 31039 to the cartilage conduction equalizer 31083a, and the electromagnetic transducer 31025a is driven by the cartilage conduction driving unit 31040a based on the output. At the same time, an audio signal input from the short-range communication unit 31087 is sent from the control unit 31039 to the air conduction equalizer 31038b, and the electromagnetic speaker 31024b is driven by the air conduction driving unit 31040b based on the output. As a result, the frequency characteristics of the air-conducting speaker are reinforced by the cartilage conduction part that is strong in the low frequency range. In particular, when the external auditory canal closing effect occurs due to the close contact between the ear pad 31024a and the pinna, the bass range is further enhanced.

  In the “noise canceling mode”, the environmental sound picked up from the environmental sound microphone 31038 is mixed in the controller 31038b after being inverted in phase by the controller 31038b, sent from the air-conducting equalizer 31038b to the air-conducting driver 31040b, and output from the electromagnetic speaker 31024b. Is output. This phase-reversed ambient sound signal cancels the ambient sound that directly enters the ear canal from the outside. Since the audio signal due to the cartilage conduction does not include the environmental sound, the environmental sound picked up from the environmental sound microphone 31038 is not sent to the cartilage conduction equalizer 31083a.

  The `` environmental sound introduction mode '' is used to prevent accidents caused by ignoring the sound of vehicles approaching from behind, for example, when using headphones on an outdoor road, or to prevent the other party from noticing that they were speaking when using headphones. The purpose of this is to prevent a response or the like, and to make it possible to hear the environmental sound even while using the headphones. In the present invention, since cartilage conduction is employed, even if environmental sound is introduced, audio sound generated in the external auditory canal can be simultaneously and satisfactorily heard. Specifically, in the “environmental sound introduction mode”, the environmental sound picked up from the environmental sound microphone 31038 is mixed by the control unit 31038b without phase inversion, and is sent from the air conduction equalizer 31038 to the air conduction driving unit 31040b. . The environmental sound picked up from the environmental sound microphone 31038 is not sent to the cartilage conduction equalizer 31083a, and only the audio signal can be heard. Thus, it is possible to listen to an audio signal by cartilage conduction while electrically introducing environmental sound without providing a structural through-hole or the like.

The details of the configuration of the electromagnetic vibrator 31025a are the same as those of the electromagnetic vibrator 4324a of the embodiment 48 shown in FIG. The details of the configuration of the electromagnetic speaker 31024b are the same as those of the electromagnetic air conduction speaker 9925 of the embodiment 103 shown in FIG.

The left ear audio output unit 31026 is the same as the configuration of the right ear audio output unit 31024 shown in FIG. 199 except that the power supply unit 31048, the operation unit 31009, the control unit 31039, the short-range communication unit 31087, and the environmental sound microphone 31038 are removed. Since the configuration is the same as that described above, illustration is omitted. The cartilage conduction equalizer and the air conduction equalizer of the left audio output unit 31026 are connected to the control unit of the right ear audio output unit 31024 via a signal line between the left ear audio output unit 31026 and the right ear audio output unit 31024. Connected to. The power supply unit 31048 supplies power to the entire stereo headphones 31081. The power supply unit 31048 supplies not only the right ear audio output unit 31024 but also the left ear via a signal line between the left ear audio output unit 31026 and the right ear audio output unit 31024. Power is also supplied to the ear audio output unit 31026.

  FIG. 200 is a flowchart illustrating the operation of the control unit 31039 of the embodiment 124 in FIG. 199. When the power is turned on by the operation unit 31009, the flow starts, and in step S792, the initial startup and the function check of each unit are performed. Next, in step S794, the cartilage conduction driving unit 31040a is turned on, and in step S796, the air conduction driving unit 31040b is turned on, and the flow shifts to step S798.

  In step S798, it is checked whether “normal mode” has been set. If not, it means that “noise cancel mode” or “ambient sound introduction mode” has been set. The sound microphone 31038 is turned on, and the process proceeds to step S802. If the environmental microphone is originally on when the process reaches step S800, the process goes to step S802 without doing anything in step S800. In step S802, it is checked whether the “noise cancel mode” is set. If so, the process proceeds to step S804, in which the input signal picked up by the microphone is inverted, and in step S806, the noise cancel mode is set. For the sound volume adjustment. This volume adjustment is set to a volume that matches the loudness of the environmental sound expected to reach the entrance of the ear canal from the outside. Next, in step S808, the processed input signal from the microphone is mixed with the air conduction driving signal, and the flow advances to step S812. As described above, the processed input signal from the microphone is not mixed with the audio signal for cartilage conduction.

  On the other hand, if it is confirmed in step S802 that the “noise cancel mode” has not been set, it means that the “ambient sound introduction mode” has been set, so the process proceeds to step S810, where the input signal picked up by the microphone is input. , A volume adjustment process for introducing the surroundings is performed. This volume adjustment is set to a size that does not mask the audio signal due to cartilage conduction. Next, the process proceeds to step S808, where the input signal from the microphone that has been processed is mixed with the air conduction driving audio signal, and the process proceeds to step S812. As described above, also in this case, the processed input signal from the microphone is not mixed with the cartilage conduction audio signal.

  On the other hand, if it is confirmed in step S798 that the “normal mode” is set, the flow advances to step S814 to turn off the environmental sound microphone 31038, and directly advances to step S812. If the environmental microphone is originally off at step S814, the process goes to step S812 without doing anything at step S814. In step S812, it is checked whether or not the power has been turned off with the operation unit 31009. If the power has not been turned off, the process returns to step S794. Unless the power is turned off, steps S794 to S814 are repeated. In this repetition, if the cartilage conduction driving unit 31040a and the air conduction driving unit 31040b have already been turned on, the process proceeds to step S798 without performing anything in steps S794 and S796. On the other hand, when it is confirmed in step S812 that the power is off, the flow ends.

  FIG. 201 is an enlarged cross-sectional view and a block diagram of an internal configuration of Example 125 according to the embodiment of the present invention. Embodiment 125 is also configured as a stereo headphone, and its overall configuration can be understood in accordance with FIG. 198, so that illustration is omitted, and FIG. 201 shows an enlarged sectional view and a block diagram of the internal configuration of the right ear audio output unit 32024. In addition, since the embodiment 125 has many points in common with the embodiment 124 shown in FIG. 199, the same portions are denoted by the same reference numerals and the description thereof will be omitted unless necessary.

  The embodiment 125 of FIG. 201 differs from the embodiment 124 of FIG. 199 in that the vibration of the electromagnetic speaker 32024b is also used as a cartilage conduction vibration source. Specifically, the electromagnetic speaker 32024b is supported by the vibration conductor 32027, and the vibration conductor 32027 is embedded in and supported by the ear pad 31024a.

With such a configuration, similarly to the embodiment 103 of FIG. 169, when an audio signal is input from the driving unit 32040, the first portion including the yoke 4324h and the second portion including the diaphragm 9924k are disposed. Relative movement occurs, and the diaphragm 9924k vibrates, so that air conduction sound is generated from the electromagnetic speaker 32024b. On the other hand, the first portion including the yoke 4324h also vibrates due to the reaction of the vibration of the second portion including the vibration plate 9924k and the like, and this vibration is transmitted from the vibration conductor 32027 to the ear pad 31024a. As described above, the reaction of the vibration of the electromagnetic speaker 32024b for generating the air-conducted sound is diverted to the vibration source of the cartilage conduction, thereby enabling both the generation of the air-conducted sound and the cartilage conduction. Accordingly, a single drive control path from the control unit 32039 to the drive unit 32040 via the equalizer 32038 is provided.

  FIG. 202 is an enlarged cross-sectional view and a block diagram of an internal configuration of Example 126 according to the embodiment of the present invention. Embodiment 126 is also configured as a stereo headphone, and its overall configuration can be understood in accordance with FIG. 198, so that illustration is omitted, and FIG. 202 shows an enlarged cross-sectional view of the right ear audio output unit 33024 and a block diagram of the internal configuration. In addition, since the embodiment 126 has many points in common with the embodiment 125 shown in FIG. 201, the same portions are denoted by the same reference numerals and description thereof will be omitted unless necessary.

  The embodiment 126 of FIG. 202 differs from the embodiment 125 of FIG. 201 in that a piezoelectric bimorph element 33024a is used as a vibration source common to air conduction and cartilage conduction instead of an electromagnetic speaker. The structure of the piezoelectric bimorph element 33024a is the same as that of the embodiment 41 in FIG. 64, for example, and the description is omitted. In the embodiment 126 shown in FIG. 202, both ends of the piezoelectric bimorph element 33024a are embedded in and supported by the opposing inner edges of the ear pad 31024a. Further, a diaphragm 33027 is provided at the center of the piezoelectric bimorph element 33024a.

With such a configuration, the central portion of the piezoelectric bimorph element 33024a vibrates with the support of the both ends supported by the ear pad 31024a, and the diaphragm 33027 vibrates to generate air conduction sound. On the other hand, the vibration is transmitted from both ends of the piezoelectric bimorph element 33024a to the ear pad 31024a by the reaction of the vibration at the center. As described above, the reaction of the vibration of the piezoelectric bimorph element 33024a for generating the air-conducted sound is diverted to the vibration source of the cartilage conduction, thereby enabling both the generation of the air-conducted sound and the conduction of the cartilage.

  FIG. 203 is an enlarged cross-sectional view and a block diagram of an internal configuration of Example 127 according to the embodiment of the present invention. The embodiment 127 is also configured as a stereo headphone, and its overall configuration can be understood according to FIG. 198, so that the illustration is omitted, and an enlarged cross-sectional view and a block diagram of the internal configuration of the right ear audio output unit 33024 are shown in FIG. Further, since the embodiment 127 has many parts in common with the embodiment 126 shown in FIG. 202, the same portions are denoted by the same reference numerals and the description thereof will be omitted unless necessary.

  The embodiment 127 of FIG. 203 differs from the embodiment 126 of FIG. 202 in that one end of a piezoelectric bimorph element 34024a serving as a common vibration source for air conduction and cartilage conduction is embedded and supported in the inner edge of the ear pad 31024a. At the same time, the other end can be freely vibrated. A diaphragm 34027 is provided at the free vibration end.

With such a configuration, the free vibrating end of the piezoelectric bimorph element 34024a vibrates with the support of the other end supported by the ear pad 31024a as a support, whereby the vibrating plate 34027 vibrates to generate air conduction sound. On the other hand, the vibration is transmitted from the other end of the piezoelectric bimorph element 34024a to the ear pad 31024a by the reaction of the vibration of the free vibration end. As described above, the reaction of the vibration of the piezoelectric bimorph element 34024a for generating the air-conducted sound is diverted to the vibration source of cartilage conduction. And both cartilage conduction.

  The implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. Also, various features of different embodiments are appropriately combined. For example, in the embodiment 124 shown in FIG. 199, whether or not to introduce an environmental sound is electrically switched. However, for example, a through hole is provided as in the embodiment 91 shown in FIG. It is also possible to adopt a configuration that opens and closes automatically.

  FIG. 204 is a system configuration diagram of Example 128 according to the embodiment of the present invention. The 128th embodiment is configured as a mobile phone system including a mobile phone 35601 and a touch pen type handset 35001 having a cartilage conduction unit 35024 and also serving as a touch panel input. A communication system such as Bluetooth (registered trademark) is used between the two. Short-range communication is possible by using radio waves 6585. The mobile phone system of the embodiment 128 has many points in common with the embodiment 69 of FIG. Therefore, the common parts are denoted by the same reference numerals as in FIG. 101, and description thereof will be omitted unless necessary.

  The touch pen type handset 35001 of the embodiment 128 shown in FIG. 204 can perform touch pen input by touching the touch pen unit 35001a on the touch panel provided on the large screen display unit 205 of the mobile phone 35601. Further, the touch pen type handset 35001 has the cartilage conduction part 35024 at the upper end and the microphone 35023 at the lower part as described above, and can be used as a wireless handset. When used as a transmission / reception unit, the cartilage conduction unit 35024 is applied to the tragus or the like to listen to the other party's voice, and at the same time speaks toward the microphone 35023 which is near the mouth. Thus, the advantage of cartilage conduction can be utilized as in the other embodiments.

  The touch pen type handset 35001 in the working example 128 is provided with a short distance communication unit 6546 for communicating with the mobile phone 35601, and the control unit 6539 controls the whole. Also, the incoming call is transmitted by vibrating the touch pen type handset 35001 with the incoming call vibrator 6525 inserted in the chest or the like. If the vibration of the cartilage conduction part 35024 is used as the incoming vibrator, it is not necessary to separately provide the incoming vibrator 6525 as a vibration source.

  As the operation unit, a call start button 6509a operated for calling or answering a call, a call end button 6509b for hanging up the call, and a selection button 6509 for selecting a call destination are provided. As the display portion, a plurality of display lamps 6505a, 6505b, and 6505c are provided.

  At the time of calling, each time the select button 6509c is pressed, one of the display lamps 6505a, 6505b, and 6505c is turned on one by one, and depending on which lamp is turned on, a destination set in advance can be selected. . By this selection, the data such as the corresponding telephone number stored in the storage unit 6537 is read, and the data is prepared for a calling operation. When a call is made to a destination other than the call destination that has been set in advance, the telephone directory is displayed on the large screen display unit 205 of the mobile phone 35601 of the main body, and the telephone is contacted by touching one of them with the contact pen unit 35001a. You can choose the destination. After selecting the call destination in this way, the call can be started by pressing the call start button 6509a. When it is desired to increase the number of call destinations to be set in advance, not only a pattern for turning on one of the display lamps 6505a, 6505b, and 6505c, but also two of 6505a and 6505b, or two of 6505b and 6505c, Alternatively, a pattern in which two of 6505a and 6505c are turned on may be used.

  On the other hand, if there is an incoming call from a call destination set in advance, the lamp is turned on in any of the above patterns. Therefore, it is possible to know from whom the incoming call is based on the lighting pattern of which lamp. In the case of an incoming call from a destination other than the call destination set in advance, the display lamps 6505a, 6505b and 6505c are all turned on to indicate that fact. When it is desired to confirm the incoming call, the user can see the display on the large screen display unit 205 of the mobile phone of the main body.

  When the call destination is set in advance, a telephone directory list is displayed on the large screen display unit 205 of the mobile phone 35601 of the main body, and a display pattern to be corresponded is selected by a selection button 6509c. Then, the user touches the contact pen unit 35001a with the telephone number to be set from the telephone directory display (for example, “Mr. Ishida” 35205 displayed on the large screen display unit 205), and presses the call start button 6509 and the call end button 6509b. When the button is pressed, the set is determined, and data such as a telephone number received from the short-range communication unit 6546 is stored in the storage unit 6537 in association with the display pattern on the display unit.

  FIG. 205 is a system block diagram of the embodiment 128 shown in FIG. FIG. 205 also has many points in common with FIG. Therefore, the common parts are denoted by the same reference numerals as in FIG. 102, and description thereof will be omitted unless necessary. The same parts as those shown in FIG. 204 are denoted by the same reference numerals, and description thereof will be omitted unless necessary. FIG. 205 illustrates a touch panel 35068 on the display unit 205 of the mobile phone 35601 for the description of the embodiment 128, and sets the control unit number to 35239. In the touch pen type handset 35021, the audio processing unit 35040 processes the audio signal picked up from the microphone 35023 and transmits the processed signal to the mobile phone 35601 from the short-range communication unit 6546, and transmits the signal from the mobile phone 35601 to the short-range communication unit 6546. The drive unit 35039 vibrates the cartilage conduction unit 35024 based on the received voice signal of the other party.

  Here, the relationship between the touch panel 35068 on the display unit 205 of the mobile phone 35601 and the touch pen type handset 35001 will be supplemented. The display unit 205 enters a power saving state when there is no touch input for a predetermined time, turns off a backlight (not shown), and enters a power saving state in which the touch panel is insensitive. This power saving state occurs in a so-called standby state in which the mobile phone 35601 is put in a bag or a pocket. When there is an incoming call in this power saving state, the incoming call vibrator 6525 of the touch pen type handset 35001 vibrates, and the touch pen type handset 35001 functions, so that a call can be made with the touch pen type handset 35001 without taking out the mobile phone 35601. .

  On the other hand, when the display unit 205 is not in the power saving state, the backlight is turned on, and the touch panel 35068 is in the operating state, touch input can be performed by touching the touch pen type handset 35001. When there is an incoming call in this state, a call is basically performed using the main body of the mobile phone 35601. However, even in this case, when it is difficult to talk by the main body due to external noise or the like, it is possible to switch to select the touch pen type handset 35001 based on a manual operation.

  FIG. 206 is a flowchart illustrating functions of the control unit 35239 of the mobile phone 35601 according to the 128th embodiment. Note that the flow of FIG. 206 extracts and illustrates operations mainly with respect to a function of coordinating with the touch pen type handset 35001 at the time of an incoming call and a function of inputting a telephone directory to the touch pen type handset 35001 for setting a call destination. The operation of the control unit 35239 not shown in the flow of FIG. 206 exists in the mobile phone 35601. Further, the control unit 35239 can achieve various functions shown in other various embodiments in combination, but illustration and description of these functions are omitted to avoid complication.

  The flow in FIG. 206 starts when the main power supply of the mobile phone 35601 is turned on. In step S822, initial startup and function check of each unit are performed, and the screen display on the display unit 205 of the mobile phone 35601 is started. Next, in step S824, the presence or absence of an incoming call is checked. If there is an incoming call, it is checked in step S826 whether the touch panel is in the power saving state. If it is not in the power saving state, the flow shifts to step S827 to check whether a videophone call has been received. If it is not a videophone call, the flow shifts to step S828 where an incoming call notification is made by the incoming call tone or incoming call vibrator of the main body of the mobile phone 35601. In step S830, a response operation by the operation unit 209 of the main body of the mobile phone 35601 is waited, and if there is a response operation, the process proceeds to step S832.

  In step S832, based on the operation of the operation unit 209 of the main body of the mobile phone 35601 or the reception of a signal indicating the operation of the operation unit 6509 of the touch pen type handset 35001, whether or not the touch pen type handset 35001 is manually selected is performed. To check. If the selection operation of the touch pen type handset 35001 is not detected, the microphone 233 and the earphone 213 of the main unit are turned on in step S834, and the main unit starts talking. Next, in step S836, the presence or absence of a call termination operation is detected, and when the termination operation is detected, the flow shifts to step S838. On the other hand, if a call termination operation is not detected in step S836, the process returns to step S832, and steps S832 to S836 are repeated unless a call termination operation is detected. In this repetition, if the microphone 233 and the earphone 213 of the main body are already turned on, nothing is performed in step S834.

  On the other hand, if it is detected in step S826 that the touch panel is in the power saving state, or if an incoming videophone call is detected in step S827, the process proceeds to step S840, and an incoming call notification is performed by the incoming call vibrator 6525 of the touch pen type handset 35001. . In step S842, the process waits for a response operation by operating the operation unit 6509 (the call start button 6509a) of the touch pen type handset 35001. If there is a response operation, the process shifts to step S844.

  In step S844, the microphone 233 and the earphone 213 of the main body are turned off, and in step S846, the microphone 35023 of the touch pen type handset 35001 is turned on. Further, in step S848, the cartilage conduction part 35024 is turned on. Then, in step S850, the operation of the operation unit 6509 (call end button 6509b) is waited, and if there is a call end operation, the process proceeds to step S838.

  By the way, when the manual operation of selecting the touch pen type handset 35001 is detected during the repetition of the above steps S832 to S836, the process shifts to step S844, and thereafter, the call with the main body is used by the touch pen type handset 35001. Switch to a call. As described above, when it is difficult to talk on the main body, the handset can be arbitrarily switched to the touch pen type handset 35001 during the talking.

  In step S838, the telephone book list is displayed on the large screen display unit 205 of the mobile phone 35601 of the main body in order to set a call destination in advance, and the touch pen for touching the telephone book list is displayed in a state where a display pattern to be corresponded is selected by the selection button 6509c. It is checked whether or not the touch by the type handset 35001 has been performed. Then, when such a touch is detected, the process proceeds to a telephone directory gravity process for the transmission / reception unit in step S852. In this processing, the touch position is detected, the selected contact is specified, the specified telephone directory data is transmitted to the touch pen type handset 35001, and the call start button 6509 and the call end button 6509b are both detected. Set confirmation etc. are included. If you want to set multiple contacts, touch the next contact and repeat the process. When the processing in step S852 ends, the flow shifts to step S854. If no telephone directory entry touch is detected in step S838, the process directly proceeds to step S854.

  In step S854, it is checked whether the main power of the mobile phone 365601 has been turned off. If the main power has not been turned off, the process returns to step S824. Unless the main power is turned off in step S854, steps S824 to S854 are repeated. repeat. On the other hand, when the main power supply is detected to be off in step S854, the flow ends.

  Although illustration is omitted in FIG. 206 to avoid complication, in step S830 and step S842, if the response operation is not performed for a predetermined time or more, or if the response is rejected and the call end operation is performed, step S838 is performed. Jump to

  Further, although the flow in FIG. 206 extracts and illustrates the function at the time of incoming call, the function at the time of calling is basically the same. Specifically, the function at the time of calling can be understood by replacing step S824 with "calling?" And reading step S830 and step S842 with "other party response?" However, in the case of an outgoing call, the incoming call notification in step S828 and step S840 is omitted.

  FIG. 207 is a system configuration diagram of Example 129 according to the embodiment of the present invention. The embodiment 129 is configured as a mobile phone system including a mobile phone 35601 and a thermometer-type handset 36001 having a cartilage conduction part 35024 and also serving as a touch panel input. A communication system such as Bluetooth (registered trademark) is used between the two. Short-range communication is possible by using radio waves 6585. The mobile phone system of the embodiment 129 has many points in common with the embodiment 128 of FIG. Therefore, the common parts are denoted by the same reference numerals as in FIG. 204, and description thereof will be omitted unless necessary. The detailed structure of the system is the same as the block diagram in FIG.

  The embodiment 129 shown in FIG. 207 differs from the embodiment 128 of FIG. 204 in that the handset that also serves as a touch panel input is a flat thermometer-shaped handset 36001. On the flat surface, a small display screen 66505 as a display portion is provided. With this small display screen, the other party's telephone number and the like are clearly displayed. The display of the telephone number and the like can be used for selection of a call destination at the time of calling, display of an incoming call, confirmation of telephone directory entry when setting a call destination, and the like. The small display screen 66505 can be further used for explanation of various usages such as usage as a cartilage conduction handset, and display of a consumed state of the power supply unit 6548 and the like.

  The implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. Also, various features of different embodiments are appropriately combined. For example, the thermometer-type handset 36001 of the embodiment 129 shown in FIG. 207 has a useful configuration even when the touch pen function is not shared. In addition, the handset that also serves as a touch panel input in the embodiment 128 of FIG. 204 or the embodiment 129 of FIG. 207 may be configured to be housed in the main body of the mobile phone 56601 or a cover put on the main body.

  Further, the handset that can also be used for touch panel input in the embodiment 128 of FIG. 204 or the embodiment 129 of FIG. 207 has an independent telephone function such as the micro cellular phone 6501 in the embodiment 69 of FIG. You may have it. Conversely, the microphone 35023 may be omitted in the embodiment 128 of FIG. 204 or the embodiment 129 of FIG. 207 for simplification, and the sound may be picked up by the microphone 223 of the mobile phone 35601. Although the advantage of cartilage conduction cannot be used, even when the cartilage conduction part is a normal air-conducting speaker, it is possible to enjoy the advantage of using both a handset and a touch pen.

  FIG. 208 is a schematic diagram of Example 130 according to the embodiment of the present invention, which is configured as a stereo earphone. Since the configuration of the stereo earphone is symmetrical in the left-right direction, only one of the earphones will be described below as "earphone". FIG. 208A is an external front view of the earphone as viewed from the inside (on the side where the earphone is attached to the ear). The earphone of the embodiment 130 has a structure in which a cartilage conduction part 36024 composed of an elastic body having a strong repulsion is provided, and a sheath part 36024b is coupled to a lower portion of the earphone in the same manner as in the embodiment 109 of FIG. 182, for example. . The upper end portion of the piezoelectric bimorph element 36025 is directly embedded and fixed below the cartilage conduction portion 36024 without touching the inner wall inside the sheath 36024b. In addition, a connection cable 36024d is led out of a hole below the sheath 36024b.

  The cartilage conduction part 36024 in the earphone of the embodiment 130 in FIG. 208 is sandwiched in the space between the inside of the tragus and the anti-earring in the same manner as the embodiment 109 shown in FIG. 182 (A). At this time, the sheath 36024b hangs down from the concha of the concha to the intertrabecular notch in the same manner as shown in FIG. 182 (A).

  The embodiment 130 of FIG. 208 differs from the embodiment 109 of FIG. 182 and the like in that a ring-shaped diaphragm 36027 for generating an air-conducted sound that vibrates without touching the cartilage conduction part 36024 is disposed. The point is that it is directly supported on the upper end of the piezoelectric bimorph element 36025 penetrating the lower part of the cartilage conduction part 36024. In FIG. 208A, the inner through hole 36024a and the outer through hole 36024c having a smaller diameter than the inner through hole 36024a are shown. As described above, diaphragm 36027 is not visible from the exterior.

  FIG. 208B is a cross-sectional view of a portion where the piezoelectric bimorph element 36025 in FIG. 208A is present (a cross-sectional view obtained by rotating FIG. 208B by 90 degrees and B1-- in FIG. 208C described later). B1 cross-sectional view), and the same parts as those in FIG. As is clear from FIG. 208 (B), the lower part of the cartilage conduction part 36024 is extended to become a connection part 23024h, and the sheath part 36024b is inserted from the outside so as to cover the connection part 36024h, so that the sheath part 36024b is formed. The cartilage conduction portion 36024 can be securely connected. On the other hand, the upper end of the piezoelectric bimorph element 36025 is inserted through the inside of the connection portion 36024h to protect the piezoelectric bimorph element 36025 and contact the lower end of the piezoelectric bimorph element 36025 inside the sheath 36024b. It is possible to vibrate without doing. As a result, the reaction of the vibration at the lower part of the piezoelectric bimorph element 36025 is transmitted to the cartilage conduction part 36024, thereby enabling good cartilage conduction.

  Further, as shown by a dashed line in FIG. 208B, a vibration plate 36027 vibrating without touching the cartilage conduction portion 36024 is disposed inside the cartilage conduction portion 36024, and the upper end of the piezoelectric bimorph element 36025 penetrating the connection portion 36024h. Inside (on the side of the ear). The reason why the diaphragm is formed in a ring shape is to guide external sounds to the ear canal. Thus, the diaphragm generates air conduction sound due to the vibration of the piezoelectric bimorph element 36025. In this way, the cartilage conduction from the cartilage conduction part 36024 mainly covers the middle and low range, and the diaphragm 36027 or the air conduction sound mainly covers the high range.

  FIG. 208 (C) is a cross-sectional view obtained by rotating FIG. 208 (B) by 90 degrees as described above, and the same parts as those in FIGS. 208 (A) and (B) are denoted by the same reference numerals. Note that in FIG. 208 (C), the left side in the drawing is the side (inside) to be attached to the ear. As is clear from FIG. 208 (C), a vibration plate 36027 that vibrates without touching the inner wall of the cartilage conduction part 36024 is disposed in the inner cavity of the cartilage conduction part 36024, and is provided at the upper end of the piezoelectric bimorph element 36025 that has penetrated the connection part 36024h. Directly supported. Further, as is clear from FIG. 208 (C), the diameter of the outer through-hole 36024c toward the outside is smaller than the diameter of the inner through-hole 36024a toward the ear hole. As a result, the inner through hole 36034a located on the ear hole side of the diaphragm 36027 is larger than the outer through hole 36024c located outside the diaphragm 36027, and the air conduction sound from the diaphragm 36027 is effective. To the ear canal. For this purpose, it is desirable that the inner through-hole 36024a be as large as possible as long as it does not hinder the strength and protection of the diaphragm, while the diameter of the outer through-hole 36024c does not hinder external sound. It is desirable to make it as small as possible. Note that the connection cable 36024d is not illustrated in FIG. 208C to avoid complexity.

  As described above, the diaphragm 36027 is formed in a ring shape so as not to prevent an external sound coming from the outer through hole 36024c from entering the ear hole via the inner through hole 36024a. However, if a gap (for example, between the periphery of the diaphragm and the inner wall of the cavity) is secured in the cavity of the cartilage conduction part 36024 so that the external sound coming from the outer through-hole 36024c passes through the inner through-hole 36024a. It is also possible to make 36027 into a disk shape without holes without making it into a ring shape. Further, even when a hole is provided to allow external sound to pass, the position is not limited to the center of the diaphragm, and the shape is not limited to a circle. Further, the number of holes is not limited to one, but may be plural or provided in a honeycomb shape.

  FIG. 209 is a schematic diagram of Example 131 according to the embodiment of the present invention, and is configured as a stereo earphone. 209 (A) to (C) relating to the embodiment 131 are almost the same as FIGS. 208 (A) to (C) relating to the embodiment 130, respectively. Therefore, common parts are denoted by the same reference numerals, and unless necessary. Description is omitted.

  The difference between the embodiment 131 of FIG. 209 and the embodiment 130 of FIG. 208 is that, as is clear from FIG. 209 (C), the diaphragm 37027 is formed around the posterior through hole 37024c in the cartilage conduction part 37024 via the soft material 37024t. The point is that it is held in close contact with the inside. Note that the vibration plate 37027 is in contact with the upper end of the piezoelectric bimorph element 36025 penetrating the connection portion 36024h of the cartilage conduction portion 37024, and the vibration is directly transmitted, as in the embodiment 130 in FIG. 208.

  In the configuration of Example 131 in FIG. 209, the degree of freedom of vibration of the diaphragm 37027 is slightly limited, but since the diaphragm 37027 is also supported by the cartilage conduction part 37024, the strength of the configuration is increased, and the earphone In the case where the vibration plate 37027 is accidentally dropped, the possibility of breakage such as the peeling of the vibration plate 37027 from the piezoelectric bimorph element 36025 is reduced.

  In the configuration of Example 131 in FIG. 209, if there is no problem from the viewpoint of restricting the degree of freedom of vibration of the vibration plate 37027, the vibration plate 37027 is connected to the vicinity of the rear through hole 37024c in the cartilage conduction part 37024 without the intervention of the soft material 37024t. It may be held directly in contact with the inside. In this case, the degree of elasticity of the cartilage conduction part 37024 is determined in consideration of both the maintenance of the shape of the cartilage conduction part 37024 at the time of attachment for obtaining good cartilage conduction and the limitation on the degree of freedom of vibration of the diaphragm 37027. . In addition, by reducing the thickness of the rear through hole 37024c, the degree of restriction on the degree of freedom of vibration of the diaphragm 37027 can be reduced.

  FIG. 210 is a schematic diagram of Example 132 according to the embodiment of the present invention, which is configured as a stereo earphone. Also in FIGS. 210 (A) to (C) relating to the embodiment 132, most of them are the same as those in FIGS. 208 (A) to (C) relating to the embodiment 130. Description is omitted as far as possible.

  The first difference between the embodiment 132 in FIG. 210 and the embodiment 130 in FIG. 208 is that, as is clear from FIG. 210 (B), the cartilage conduction part 38024 is formed of a hard material integrally with the sheath 38024b. It is a point. A second difference between the embodiment 132 and the embodiment 130 is that the lower end portion of the piezoelectric bimorph element 38025 is supported inside the lower end of the sheath 38024b, and the upper end side of the piezoelectric bimorph element 38024 is inside the sheath 38024b. Is that free vibration can be performed without contacting the inner wall of the sheath portion 38024b and the cartilage conduction portion 38024. The vibration plate 38027 is supported at the upper end of the piezoelectric bimorph element 38025 that vibrates freely, and vibrates in the cavity of the cartilage conduction part 38024 to generate air conduction sound. In the example 132, since the cartilage conduction part 38024 is made of a hard material, air conduction sound is also generated from the cartilage conduction part 38024 itself (for example, the surface of the front through-hole 36024a), and the treble portion is strengthened. On the other hand, the possibility of sound leakage to the surroundings due to the influence of air conduction sound generated from the sheath 38024b and the cartilage conduction part 38024 increases.

  The third difference between the embodiment 132 and the embodiment 130 is that, as is apparent from FIG. 210 (C), protective meshes 38024u and 38024v are provided at the entrances of the front through hole 36024a and the rear through hole 36024c, respectively. It is a point. Thus, it is possible to prevent inconveniences such as a foreign object entering the cavity of the cartilage conduction part 38024 and failure of the diaphragm 38027 or the like without hindering the introduction of an external sound. As is clear from FIG. 210A, the protective mesh 38024u can be seen from the appearance. When the rear through hole 36024c is sufficiently small, the protective mesh 38024v can be omitted. If the protective mesh 38024u is provided on the side of the inner through hole 368024 to protect the cavity portion of the cartilage conduction part 38024, the inner through hole 368024 can be made larger than the diameter of the diaphragm, such as a megaphone. It becomes possible to make the air conduction sound from the diaphragm 36027 effectively directed toward the ear canal in the shape.

  The configuration in which the protective mesh is provided at the entrance of the through-hole is not limited to the embodiment 132, and the protective mesh may be provided in the above-described embodiments 130 and 131, and further in the following embodiments. Can be. In this case, when the cartilage conduction part is an elastic body, the protective mesh also has an elastic structure. Also,

  FIG. 211 is a schematic diagram of Example 133 according to the embodiment of the present invention, which is configured as a stereo earphone. Also in FIGS. 211 (A) to (C) relating to the embodiment 133, most of them are the same as those in FIGS. 208 (A) to (C) relating to the embodiment 130. Description is omitted as far as possible.

The first point of difference between the embodiment 133 in FIG. 211 and the embodiment 130 in FIG. 208 is that, as shown in FIGS. 211 (B) and (C), the upper end of the piezoelectric bimorph element 39025 has an elastic cartilage conduction part 396024. This is a point that the lower end of the piezoelectric bimorph element 39025 is supported inside the lower end of the sheath 38024b while being supported by the connecting portion 39024h.
Restricting the lower end of the piezoelectric bimorph element 39025 results in different vibration characteristics. On the other hand, a strong fulcrum for vibration of the upper end is formed, so that the amplitude of the cartilage conduction portion 396024 increases.

  The second point in which the embodiment 133 in FIG. 211 differs from the embodiment 130 in FIG. 208 is that, as shown in FIGS. 211 (B) and (C), a part of the sheath 39024b penetrates the cartilage conduction part 396024 upward. This is a point that the vibration plate 39027 is supported by the extended portion 39024w. This uses the vibration of the sheath 39024b transmitted by supporting the lower end of the piezoelectric bimorph element 39065 to vibrate the diaphragm 39027 in the cavity of the cartilage conduction part 39024, and enhances the treble range by the generated air conduction sound. To do that.

  Embodiments 130 to 133 employ a piezoelectric bimorph element as a vibration source of the cartilage conduction part and the diaphragm. However, this vibration source is not limited to the piezoelectric bimorph element. For example, an electromagnetic vibrator such as the electromagnetic vibrator 4324a of the embodiment 48 in FIG. 73 is employed, and this is disposed in the cavity of the cartilage conduction part. You may. In this case, as shown in an embodiment 125 of FIG. 201, one of a pair of members of an electromagnetic vibrator that relatively vibrates (for example, a portion of the voice coil bobbin 4324k in FIG. 73) vibrates the diaphragm and receives the reaction. (For example, the portion of yoke 4324h in FIG. 73) is held in the cavity of the cartilage conduction part to obtain cartilage conduction. Even when an electromagnetic vibrator is used as the vibration source, the electromagnetic vibrator and the inner wall of the cavity of the cartilage conduction part do not prevent external sound coming from the outer through hole from entering the ear canal through the inner through hole. Make sure there is a gap between them.

The implementation of the various features shown in each of the above embodiments is not limited to the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. The features can be combined and adopted in one embodiment. For example, the protection mesh shown by the implementation principle 132 in FIG. 210 can be adopted also in the embodiments 124 to 127 shown in FIGS. Further, the configuration in which the cartilage conduction part is made of a hard material as in the embodiment 132 of FIG. 210 can be employed in the embodiment 130 of step S208, for example. However, since the embodiment 130 is configured not to transmit the vibration of the piezoelectric bimorph element to the sheath, the elastic body 5165a employed in the embodiment 55 of FIG. A layer of the vibration isolating material according to the above is interposed.

  FIG. 212 is a system configuration diagram of Example 134 according to the embodiment of the present invention. The embodiment 134 is configured as a mobile phone system including a mobile phone 35601 and a wristwatch-type handset 40001, and short-range communication is possible between the two by radio waves 6585 of a communication system such as Bluetooth (registered trademark). The mobile telephone system of the embodiment 134 has many points in common with the embodiment 128 of FIG. Therefore, the common parts are denoted by the same reference numerals as in FIG. 204, and description thereof will be omitted unless necessary.

  A wristwatch-type handset 40001 according to the embodiment 134 shown in FIG. 212 has a wristwatch main body 40001a and a belt portion 40001b. The wristwatch main body 40001a is provided with a wristwatch display unit 40005 using reflective liquid crystal, and performs various displays described later together with a normal time display. The wristwatch display unit 40005 is provided with a variable directional microphone 40023 and a speaker 40013, which will be described later. By short-range communication with the mobile phone 1601, the wristwatch-type handset 35001 can be operated even when the mobile phone 35601 is kept in a pocket, for example. You can talk while watching. The wristwatch display unit 40005 is further provided with a camera unit 40017, which captures an image of the user's own face looking at the wristwatch display unit 40005, and displays the other party's face on the wristwatch display unit 40005, enabling videophone. is there. In the videophone state, the directivity of the variable directivity microphone 40023 is set so as to pick up sound from the front of the wristwatch display unit 40005.

  The watch display unit 40005 is further provided with a display unit cartilage conduction unit 40024a, and transmits vibration for cartilage conduction to the surface of the watch display unit 40005. Therefore, by placing the watch display unit 40005 on the ear in a posture as described later, the other party's voice due to cartilage conduction can be heard. At this time, the directivity of the variable directional microphone 40023 is switched so as to pick up the voice from the elbow direction of the hand (usually the left hand) fitted with the wristwatch-type handset 40001, so that it is possible to talk in a posture described later. The variable directivity microphone switches the directivity by a configuration like the embodiment 106 in FIG.

  On the other hand, the belt portion 40001b is provided with a belt cartilage conduction portion 40024b, and transmits vibration for cartilage conduction to the entire belt portion 4001b. Therefore, by placing the belt portion 4001b on the ear in a different posture as described later, the other party's voice due to cartilage conduction can be heard, and a call can be made in the same manner as described above. Further, since vibration is transmitted from the belt portion 4001b to the wrist, it is possible to perform listening by cartilage conduction in which the hand (palm, index finger, etc.) transmitting the vibration is applied to the ear cartilage without directly touching the belt portion 40001b to the ear. Note that an antenna 6546a of the short-range communication unit is provided so as to wind around the wrist along the belt unit 4001b.

  FIG. 213 is an explanatory screen of the call attitude displayed on the wristwatch display unit 40005 in the embodiment 134 shown in FIG. 212. This screen is displayed every time the power switch of the wristwatch type handset 40001 is turned on, but it can be set so as not to be displayed when it is complicated. FIG. 213 (A) illustrates a telephone call attitude during a videophone call, in which a mobile phone 1601 is placed in a pocket, for example, and a videophone call is made while looking at the watch display portion 40005.

  FIG. 213 (B) illustrates the posture of cartilage conduction communication, in which the hand with the wristwatch-type handset 40001 is crossed in front of the face and the wristwatch display unit 40005 is put on the opposite ear. . In FIG. 213 (B), the wristwatch-type handset 40001 is fitted to the left hand, so that the wristwatch display unit 40005 is put on the right ear. By this talking posture, the vibration from the display part cartilage conduction part 40024a is transmitted to the ear cartilage, and the microphone of which the directivity is switched so as to be able to hear the other party's voice by good cartilage conduction and to pick up the sound from the elbow direction. You can convey your voice picked up by the other party. In this posture, the camera unit 40017, the speaker 40023, and the watch display unit 40005 are turned off. Such automatic turning-off is automatically performed when the acceleration sensor provided in the wristwatch main body 40001a detects the change in the posture in FIGS. 213 (A) and (B).

  FIG. 214 is an explanatory screen of another call attitude displayed on the watch display unit 40005 in the same manner as in FIG. 213. FIG. 214A illustrates a posture in which the wrist is rotated by 90 degrees with respect to FIG. 213B so that the wristwatch display portion 40005 is on the upper side, and the belt portion 40001b is placed on the ear. In this case, since the wristwatch display portion 40005 does not touch the ear, the surface thereof is not stained with sebum or the like. In this posture, the vibration from the belt cartilage conduction part 40024b is transmitted to the ear cartilage. The same is true for a microphone whose directivity is switched to pick up sound from the elbow direction.

  FIG. 214 (B) shows a posture like an elbow pillow, and a call in which the palm side of the belt unit 40001b is applied to the ear on the same side as the hand on which the wristwatch-type handset 40001 is fitted (in FIG. 214, the left hand is the left ear). The posture is shown. In this posture, the vibration from the belt cartilage conduction part 40024b is transmitted to the ear cartilage via the belt 40001b. The same is true for a microphone whose directivity is switched to pick up sound from the elbow direction.

  In FIG. 214C, a hand (the index finger in the figure) is applied to the ear cartilage to the ear on the same side as the hand fitted with the wristwatch-type handset 40001 (in the case of the figure, the index finger is applied to the tragus and the ear hole is inserted). (Closing and creating a closed ear canal). In this posture, the vibration transmitted to the wrist from the belt cartilage conduction part 40024b via the belt part 40001b is transmitted to the ear cartilage. The same is true for a microphone whose directivity is switched to pick up sound from the elbow direction.

  213 and 214 illustrate the call posture shown in the wristwatch display unit 40005 as described above, as well as an instruction manual or a wristwatch attached when the wristwatch-type handset 40001 is provided as a product. An advertising medium for advertising the handset 40001 can be provided to the user integrally with the watch-type handset 40001 as a product. Accordingly, such specific uses provided with the watch handset 40001 are also part of the present invention.

  FIG. 215 is a system block diagram of the embodiment 134 shown in FIGS. FIG. 215 also has much in common with FIG. 205 in the embodiment 128. Therefore, the common parts are denoted by the same reference numerals as in FIG. 205 and will not be described unless necessary. Further, the same parts as those shown in FIG. 212 of the embodiment 134 are denoted by the same reference numerals, and description thereof will be omitted unless necessary.

  As shown in FIG. 215, the wristwatch-type handset 40001 of Embodiment 134 has a clock function unit 35039 for a normal clock function. The acceleration sensor 40049 detects the rise of the wristwatch-type handset 40001 from (A) to (B) of FIG. 213 and the fall of the wristwatch-type handset 40001 from (B) to (A) of FIG. 213. , The camera unit 40017, the speaker 40023, and the wristwatch display unit 40005 are automatically switched.

  The power supply unit 6548 of the wristwatch-type handset 40001 and the power supply unit 1448 of the mobile phone 35601 can be contactlessly charged by contactless charging units 6548a and 1448a, respectively. It is shared so that cooperation between the wristwatch type handset 40001 and the mobile phone 35601 is ensured. Further, the GPS unit 40038 detects the movement of the user wearing the wristwatch-type handset 40001, and checks whether or not the mobile phone 35601 is left unattended in the original place each time. Cooperation between the 40001 and the mobile phone 35601 is ensured. Specifically, it is checked whether the user moves out of the short-distance communication area as a result of moving.

  The driving unit 35036 drives both the display unit cartilage conduction unit 40024a and the belt cartilage conduction unit 40024b so that it can cope with any listening posture. Note that the posture may be finely discriminated or manually switched so that only one of the display portion cartilage conduction portion 40024a and the belt cartilage conduction portion 40024b vibrates. The voice processing unit 40040 switches between vibration vocalization for cartilage conduction by the driving unit 36036 and air conduction sound generation by the speaker 40013 in accordance with an instruction from the control unit 40039. The directional microphone 40023 switches the directivity according to an instruction from the control unit 40039 via the audio processing unit.

  Although the incoming call vibrator 6525 is provided in the belt 40001b, it may be configured so that the vibration of the belt cartilage conduction part 40024b is also used, and that a separate vibration source is omitted.

  FIG. 216 is a flowchart illustrating functions of the control unit 40039 of the wristwatch-type handset 40001 according to the embodiment 134. Note that the flow of FIG. 216 extracts and illustrates operations mainly on functions related to cartilage conduction, and that the wristwatch-type handset 40001 has control functions not shown in the flow of FIG. The operation of the unit 40039 exists. Further, the control unit 40039 can achieve various functions shown in other various transmission / reception devices, but illustration and description of these functions are omitted to avoid complication.

  The flow in FIG. 216 starts when the main power supply of the wristwatch-type handset 40001 is turned on. In step S862, initial startup and function checks of each unit are performed, and normal watch display on the wristwatch display unit 40005 is started. Next, in step S864, the usages shown in FIGS. 213 and 214 are displayed in a slide show. Upon completion of the usage explanation, the flow shifts to step S866 to check whether or not the movement of the user by the GPS unit has been detected.

  If there is no movement detection, the process advances to step S868 to check whether or not the scheduled timing (for example, once every five seconds) for ensuring the cooperation between the wristwatch-type handset 40001 and the mobile phone 35601 has been reached. If so, the process moves to step S870. On the other hand, when the user movement by the GPS is detected in step S866, the process directly proceeds to step S870. In step S870, it is checked whether or not the mobile phone is out of the short-distance communication area. In step S872, short-range communication with the mobile phone is performed, the power supply state of the wristwatch type handset 40001, which is constantly displayed on the wristwatch display unit, is checked, and the result is transmitted to the mobile phone 35601. The transmitted information is displayed on a mobile phone. Further, in step S874, information indicating the power state of the mobile phone is received by short-range communication, the result is displayed on the watch display unit, and the flow shifts to step S876. On the other hand, if the scheduled timing is reached in step S868, the flow directly proceeds to step S876.

  In step S876, it is detected whether there has been an incoming call to the mobile phone due to short-range communication or whether there has been a response from the other party based on the calling operation of the operation unit 6509 of the wristwatch type handset 40001. If any of these is present, it means that the communication with the other party by the mobile phone has been started, and the process advances to step S878 to display the other party's face on the wristwatch display unit, image the own face by the camera unit, and use the speaker. The air conduction sound generation is turned on, the directivity of the microphone is set to the front of the wristwatch display unit, and the flow shifts to step S880. At this time, the cartilage conduction part is off. As described above, when starting a call, first, the videophone state is set. If the telephone call is not a videophone but only a voice call, the display of the other party's face and the turning on of the camera unit are omitted.

  In step S880, it is checked whether the acceleration sensor 40049 has detected the rise of the wristwatch type handset 40001 from (A) to (B) in FIG. 213. If there is a detection, the process proceeds to step S882, in which the display of the other party's face on the wristwatch display unit, the imaging of one's own face by the camera unit, and the generation of air conduction sound by the speaker are all turned off, and the cartilage conduction unit is turned on instead. Further, the directivity of the microphone is set to the elbow side, and the flow shifts to step S884.

  In step S884, it is checked whether the wristwatch type handset 40001 has been lowered from (B) to (A) in FIG. 213 by the acceleration sensor 40049, and if a descent is detected, the process proceeds to step S878 to enter the videophone state. Reset settings. On the other hand, if the descent is not detected in step S884 (this state is usually as long as the cartilage conduction call is continued), the flow shifts to step S886 to check whether the call has been disconnected. If there is no disconnection of the call, the process returns to step S880. Hereinafter, steps S878 to S886 are repeated until the disconnection of the call is detected in step S886, and the switching between the cartilage conduction call and the videophone corresponding to the change in the posture is performed. On the other hand, if a call disconnection is detected in step S886, the flow shifts to step S888. If no call start is detected in step S876, the process directly proceeds to step S888.

  In step S888, it is checked whether the mobile phone search operation by the operation unit 6509 has been performed. This operation is performed, for example, when a mobile phone is not found when going out. When the operation is performed, the process proceeds to step S890, communicates with the mobile phone through short-range communication, transmits an instruction signal for causing the mobile phone to generate a ringtone (or vibrator vibration), and proceeds to step S892. .

  On the other hand, if it is detected in step S870 that the mobile phone has gone out of the short-range communication range, the flow advances to step S894 to display that the mobile phone is in a non-mobile state, and then the flow shifts to step S892. The cooperation between the wristwatch type handset 40001 and the mobile phone 35601 is ensured by the various means as described above.

  In step S892, it is checked whether the main power supply of the wristwatch type handset 40001 has been turned off. If the main power supply has not been turned off, the process returns to step S866. Unless the main power supply is detected to be off in step S892, the steps from step S866 will be repeated. S892 is repeated. On the other hand, if main power off is detected in step S892, the flow ends.

  The implementation of the various features shown in each of the above embodiments is not limited to the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. The features can be combined and adopted in one embodiment. For example, various means of cooperation between the wristwatch-type handset 40001 and the mobile phone 35601 shown in FIGS. 212 to 216 can be used in the wristwatch-type handset 40001 which does not employ cartilage conduction.

  FIG. 217 is a system configuration diagram of Example 135 according to the embodiment of the present invention. The embodiment 135 is configured as a mobile phone system including a mobile phone 35601 and an ID name tag type transmission / reception device 41001. The two can perform short-range communication between the two by radio waves 6585 of a communication system such as Bluetooth (registered trademark). is there. The mobile phone system of the embodiment 135 has many points in common with the embodiment 134 of FIG. Therefore, the common parts are denoted by the same reference numerals as in FIG. 212, and description thereof will be omitted unless necessary.

  The ID name tag type transmission / reception device 41001 in the embodiment 135 shown in FIG. 217 is used as an unlocking card for entering a building as a non-contact type IC card, and an ID data display unit 41005 using reflective liquid crystal on the surface. Is a name tag on which the photograph 41001a and the name 41001b of the person are displayed. And usually, it is used by hanging it from the neck by the neck strap 41001c. As shown in FIG. 217, the display is in an upright state as viewed from the other party. As will be described later, this display is turned upside down when viewed by the user.

  The ID name tag type transmission / reception device 41001 further includes a speaker 41013, a microphone 41023, and a camera unit 41017, and functions as a videophone transmission / reception device for the mobile phone 35601 by performing short-range communication with the mobile phone 35601 by radio waves 6585. . In this case, the face of the other party is displayed upside down as in the case of FIG. 217, but details of use as a videophone will be described later.

  The ID name tag type transmission / reception device 41001 further has a cartilage conduction portion 41024 at a corner, and by bringing the cartilage conduction portion 41024 into contact with the tragus, a transmission capable of making a call by cartilage conduction as in the other embodiments. Functions as a receiver. Microphone 41023, which is also used for videophone, is used for transmission. In Example 135, since the cartilage conduction part 41024 is arranged on the lower side in a state of being hung from the neck as shown in FIG. 217, it is easy to lift the cartilage conduction part 41024 against the tragus, Does not interfere with the neck strap 41001a.

  The ID name tag type transmitter / receiver 41001 further includes an incoming call vibrator 6525, and receives an incoming signal and vibrates by performing short-distance communication with the mobile phone 35601 by the radio wave 6585. The neck strap 41001c is made of a material having good vibration transmission properties and is connected to the incoming call vibrator 6525. With this configuration, the vibration of the incoming call vibrator 6525 is transmitted to the skin behind the neck via the neck strap 41001c, and the incoming call can be clearly sensed. Since the neck strap 41001c is taut by the weight of the ID name tag type transmitting / receiving device 41001, the vibration of the incoming call vibrator 6525 is transmitted well to the neck.

  FIG. 218 is an enlarged view of the ID name tag type transmission / reception apparatus 41001 shown in FIG. 217, and the same parts as those in FIG. 217 are denoted by the same reference numerals and description thereof will be omitted unless necessary. FIG. 218 (A) shows a state in which the ID name tag type transmission / reception device 41001 is hung on the neck similarly to FIG. 217, and each display is displayed upright when viewed from the facing party. Explaining the parts that are not shown in FIG. 217, the ID name tag type transmission / reception device 41001 can be operated by the operation unit 6509, such as turning on a power switch, and various operations such as switching, setting, and inputting.

  The ID data display section 41005 displays a battery charge state display 41001d of the ID name tag type transmitter / receiver 41001 in addition to the information described in FIG. 217. Further, in the ID data display section 41005, a charge state display 41001e of the battery of the mobile phone 35601 and an incoming call mode display 41001f indicating whether the mobile phone 35601 is set to the ringing sound mode or the vibration mode are displayed. . Note that FIG. 218 shows a ringing mode setting state. When the mobile phone 35601 is set to the vibration mode, the incoming call mode display 41001f changes to a heart-shaped display as described later. The data of the above display contents regarding the mobile phone 35601 is transmitted from the mobile phone 35601 by short-range communication. By displaying such various displays so that the other party can see it, it is possible to receive advice from the other party who notices this, such as running out of battery or forgetting to set the vibration mode.

  FIG. 218 (B) shows a state in which the ID name tag type transmission / reception device 41001 is lifted while rotating toward the user, and is viewed by himself. At this time, the neck strap 41001c is on the lower side. In addition, in the illustration of FIG. 218 (B), each component such as the cartilage conduction part 41024 appears to be rotated by 180 degrees in parallel with the paper from the state of FIG. 218 (A). FIG. 218 (B) shows the state viewed from the user, while FIG. Therefore, when the state shown in FIG. 218 (A) changes to the state shown in FIG. 218 (B), the ID name tag type transmission / reception device 41001 itself is not necessarily rotated 180 degrees in parallel with the ID data display section 41005.

  For the above reason, if the ID name tag type transmitter / receiver 41001 is lifted while rotating toward itself while the display state remains as in FIG. 218 (A), each display including the photograph 41001a and the name 41001b of the person is displayed. Inverted state. To correct this, in the state of FIG. 218 (B), the display contents in the ID data display section 41005 are rotated 180 degrees by image processing and the arrangement is arranged. Thus, even when the ID name tag type transmission / reception device 41001 is lifted while rotating toward itself and viewed by oneself, it is possible to see each display including the photograph 41001a and the name 41001b of the person in an upright state. The user can operate the operation unit 6509 while viewing the display to change or input settings.

  FIG. 219 shows a display in which the user is looking at the ID name tag type transmission / reception device 41001 in the same manner as in FIG. The same portions as those in FIG. 218 (B) are denoted by the same reference numerals, and description thereof will be omitted unless necessary. FIG. 219 (A) shows a state where mail 41001g is displayed. Note that FIG. 219 (A) illustrates a state in which the incoming call mode display 41001f changes to a heart-shaped display as a result of the mobile phone 35601 being set to the vibration mode. FIG. 219 (B) shows a state where the other party's face 41001h is displayed in the videophone state.

  FIG. 220 is a system block diagram of the embodiment 134 shown in FIGS. 212 to 214. FIG. 220 also has many points in common with FIG. 215 which is the system block diagram of the embodiment 134. Therefore, the common parts are denoted by the same reference numerals as in FIG. 215, and description thereof will be omitted unless necessary. Further, in the embodiment 135, the same portions as those shown in FIGS. 217 to 219 are denoted by the same reference numerals, and description thereof will be omitted unless necessary.

  The contactless IC card unit 41001i shown in FIG. 220 causes the ID name tag type transmitting / receiving device 41001 to function as a contactless IC card by communication via the card antenna 41001j. As a result, the ID name tag type transmission / reception device 41001 can be touched to the entrance check unit to unlock the entrance to the building. In addition, the non-contact type IC card unit 41001i cooperates with the payment and settlement function of the mobile phone 35601 by the short-range communication unit 6546 to make the ID name tag type transmission / reception device 41001 function as a payment and settlement card. Thus, the payment settlement can be performed through the mobile phone 35601 by touching the ID name tag type transmission / reception device 41001 with the payment settlement unit.

  Neck strap connecting section 4100k shown in FIG. 220 is for connecting neck strap 41001c that transmits incoming vibration to the neck, and the vibration of incoming vibrator 6525 is transmitted. Thus, the vibration of the incoming call vibrator 6525 transmitted to the neck strap connection portion 4100k is transmitted to the neck strap 41001c, and the incoming call can be sensed behind the neck.

  Further, the acceleration sensor 40049 shown in FIG. 220 detects the gravitational acceleration, and identifies whether the non-contact type IC card unit 41001i is in the posture of FIG. 218 (A) or the posture of FIG. 218 (B). The display is inverted and the display layout is adjusted. The acceleration sensor 40049 further determines whether the non-contact type IC card unit 41001i is in the position shown in FIG. 218 (A) and is used as a videophone or the cartilage conduction unit 41024 is brought into contact with the tragus. Detect. Based on the output of the acceleration sensor 40049, the voice processing unit 40040 switches between generating an air-conducted sound from the speaker 41013 using a voice signal or causing the driving unit 35036 to vibrate the cartilage conduction unit 41024. The control unit 41039 controls the entire ID name tag type transmission / reception device 41001 including the functions described above according to the program stored in the storage unit 6537.

  FIG. 221 is a flowchart illustrating functions of the control unit 40039 of the ID business card type transmitting / receiving device 41001 according to the embodiment 135. Note that the flow of FIG. 216 extracts and illustrates operations mainly on functions related to cartilage conduction, and is not shown in the flow of FIG. 216 including a normal wristwatch function in the wristwatch-type transmitter / receiver 40001. The operation of the control unit 40039 exists. Further, the control unit 40039 can achieve various functions shown in other various transmission / reception devices, but illustration and description of these functions are omitted to avoid complication.

  The flow of FIG. 216 starts when the main power supply of the ID name tag type transmission / reception device 41001 is turned on. In step S902, the initial startup and the function check of each unit are performed, and the ID data in the ID data display unit 41005 (photograph 41001a and name 41001b). Start displaying. Next, in step S904, a setting is made such that the top and bottom directions of each display such as ID data are in the suspended state in FIG. Further, in step S906, the charge state display 41001d of the battery of the ID name tag type transmission / reception device 41001, the charge state display 41001e of the battery of the mobile phone 35601, and the incoming call mode display 41001f are displayed so as to be seen by the facing party, and the process proceeds to step S908.

  In step S908, it is checked whether or not an incoming signal is transmitted from the mobile phone 35601 by short-range communication. If an incoming signal is received, the process advances to step S910 to turn on the incoming vibrator 6525. As a result, the vibration is transmitted to the neck strap 41001c via the neck strap connection portion 41001k, and the incoming call can be sensed behind the neck. Next, in step S912, it is detected whether an incoming call response operation has been performed on the operation unit 6509 or an incoming signal from the mobile phone 35601 has been stopped from being transmitted due to the stoppage of the call of the other party. If not, the process returns to step S910, and steps S910 and S912 are repeated unless a corresponding state is detected in step S912. On the other hand, when a corresponding operation is detected in step S912, the process proceeds to step S914, in which the incoming call vibrator 6525 is turned off, and the process proceeds to step S916. If no incoming signal is detected in step S908, the process directly proceeds to step S916.

  In step S916, the acceleration sensor 40049 checks whether the state of the ID name tag type transmission / reception device 41001 has changed from the state of FIG. 218 (A) to the lifting posture of FIG. 218 (B). When the lifting posture is detected, the process proceeds to step S918, in which the vertical direction of the display is changed from the lifting state of FIG. 218 (A) to the lifting state of FIG. 218 (B), and the call is set to the normal call state by the microphone 41023 and the speaker 41013. Then, control proceeds to a step S920. In a normal call state, the cartilage conduction part 41024 is off. On the other hand, when the lifting posture is not detected in step S916, the process directly proceeds to 920.

  In step S920, based on the output of the acceleration sensor 40049, it is determined whether or not the ID name tag type transmitting / receiving device 41001 is further lifted from the state of 218 (B) to take the cartilage conduction posture for bringing the cartilage conduction unit 41024 into contact with the tragus. To check. When the cartilage conduction posture is detected, the process proceeds to step S922, where the cartilage conduction unit is turned on, the speaker 41013 is turned off, and the process proceeds to step S924. In step S922, when the backlight (not shown) of the projection liquid crystal provided in the ID data display unit 41005 is turned on, it is turned off. On the other hand, when the cartilage conduction posture is not detected in step S920, the process directly proceeds to 924.

  In step S924, it is checked whether or not the acceleration sensor 40049 has detected a return to the suspended posture in FIG. 218 (A). When the suspension posture is detected, the process proceeds to step S926, in which the vertical direction of the display is changed from the state illustrated in FIG. 218 (B) to the suspended state illustrated in FIG. 218 (A), and the call is switched to the normal call state using the microphone 41023 and the speaker 41013. After setting, the process moves to step S928. On the other hand, when the suspension posture is not detected in step S924, the process directly proceeds to 928.

  In step S928, it is checked whether or not the ID name tag type transmission / reception device 41001 is touched by the entrance check unit of the building or the payment settlement unit. If so, the process proceeds to step S930, executes the corresponding process using the function of the non-contact type IC card unit 41001i described above, and proceeds to step S932. On the other hand, when the suspension posture is not detected in step S930, the process directly proceeds to 932.

  In step S932, it is checked whether the main power supply of the ID name tag type transmission / reception device 41001 is turned off. If the main power supply is not off, the process returns to step S908. Steps S908 to S932 are repeated. Thus, the ID name tag type transmission / reception device 41001 corresponds to the functions of transmission / reception and a non-contact type IC card, but usually functions as an ID name tag suspended from the neck, and an ID data display unit using a reflective liquid crystal. At 41006, the display of the photograph and the name is continued.

  The implementation of the various features shown in each of the above embodiments is not limited to the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. The features can be combined and adopted in one embodiment. For example, the embodiment shown in FIG. 217 to FIG. 221 is configured as a transmission / reception device that cooperates with a mobile phone. Is also good.

  FIG. 222 is a perspective view and a cross-sectional view of Example 136 according to the embodiment of the present invention, which is configured as a mobile phone 42001. Since the embodiment 136 has many parts in common with the embodiment 107 in FIG. 178 (described with reference to the embodiment 88 in FIG. 136), common parts are denoted by the same reference numerals and unless necessary. Description is omitted. Similarly to Embodiment 107, FIG. 222A is a front perspective view of Embodiment 136, and the housing of the mobile phone 42001 has a metal frame with a front plate 8201a made of plastic or the like and a back plate 8021b made of plastic. It is configured to sandwich. The metal frame is divided into an upper frame 8227, a right frame 8201c, a lower frame 8201d, and a left frame 8201e (not shown in FIG. 222A), and an insulator 42001f is interposed therebetween. I have. With the above structure, the front plate 8201a, the back plate 8021b, and the upper frame 8227 form an upper side portion of the housing of the mobile phone 42001.

  The outer sides of both corners of the upper frame 8227 are adhesively coated with a cartilage conduction part 42024 for the right ear and a cartilage conduction part 42026 for the left ear, and the upper side of the upper frame 8227 is connected to the cartilage conduction part 42024 for the right ear and cartilage for the left ear. It is adhesively covered with a connecting portion 42027 that connects the conductive portions 42026. The cartilage conduction part 42024 for the right ear, the cartilage conduction part 42026 for the left ear, and the connecting part 42027 are made of an elastic body having an acoustic impedance similar to that of the ear cartilage and are integrally molded. Incidentally, the front plate 8201a, the back plate 8021b, and the upper frame 8227 have acoustic impedances different from those of the cartilage conduction part 42024 for the right ear, the cartilage conduction part 42026 for the left ear, and the coupling part 42027, and the vibrations of these are transmitted. It has a difficult configuration.

  FIG. 222B is a cross-sectional view taken along line B1-B1 of FIG. 222A, and the same portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. As is clear from FIG. 222 (B), an extension 42027c is provided below the connecting portion 42027 and extends into the mobile phone 42001 through an opening provided in the upper frame 8227. The extension 42024c is The upper end of the piezoelectric bimorph element 13025 is inserted and cantilevered. As a result, the lower other end of the piezoelectric bimorph element 13025 vibrates freely, and its reaction is transmitted to the extension 42027c. Since the extension portion 42027 is integrally formed of the same elastic body as the connection portion 42027, the vibration is efficiently transmitted to the cartilage conduction portions 42024 and 42026 via the connection portion 42027, respectively. The vibration direction is a direction perpendicular to the front plate 8201a (a direction perpendicular to the plane of FIG. 222).

  With the above configuration, good cartilage conduction can be obtained by bringing the cartilage conduction part 42024 or 42026 into contact with the ear cartilage. As described above, the piezoelectric bimorph element 13025 is supported only by the extension 42027c having an acoustic impedance similar to that of the ear cartilage, and is transmitted from the cartilage conduction part 42024 or 42026 to the ear cartilage via the connection part 42027 integrally formed therewith. Therefore, efficiency is high in terms of cartilage conduction. On the other hand, since the piezoelectric bimorph element 13025 is not in contact with the upper frame 8227, the front plate 8201a, and the back plate 8021b, vibration is not directly transmitted to them. Further, since the upper frame 8227, the front plate 8201a, and the back plate 8021b have different acoustic impedances from the elastic members constituting the connecting portion 42027 and the cartilage conduction portions 42024, 42026, the vibration of the elastic members is cut off. With these, generation of air conduction sound due to vibration of the front plate 8201a and the back plate 8021b is suppressed. Furthermore, since the connection portion 42027 and the cartilage conduction portions 42024 and 42026 are adhered to the upper frame 8227, vibration in the direction perpendicular to the surfaces thereof is suppressed, so that the connection portion 42027 and the cartilage conduction portions 42024 and 42026 themselves The generation of the air conduction sound from the air is also suppressed.

  In addition, since the outer sides of both corners of the upper frame 8227 are covered with elastic bodies serving as cartilage conduction parts, both corners are protected from impact when the mobile phone 42001 falls. Further, since the piezoelectric bimorph element 13025 is supported only by the elastic body as described above, this serves as a cushioning material, thereby preventing the piezoelectric bimorph element 13025 from being broken by an impact due to a drop of the mobile phone 42001 or the like.

  FIG. 222B is a cross-sectional view taken along line B1-B1 of FIG. 222A, so that the connecting portion 42027 appears to be interrupted by the external earphone jack 8246 and the power switch 8209, but the top view of FIG. According to FIG. 222 (C), it can be seen that the cartilage conduction part 42024 for the right ear, the cartilage conduction part 42026 for the left ear, and the connecting part 42027 are continuously and integrally molded by an elastic body. In FIG. 222 (C), the extension 42027c inside and the piezoelectric bimorph element 13025 inserted therein are indicated by broken lines.

  FIG. 222 (D), which is a cross-sectional view taken along line B2-B2 shown in FIGS. 222 (A) to 222 (C), shows that the extension 42027c is integrated with the coupling 42027, and the piezoelectric bimorph inserted therein. This indicates that the free end of the element 13025 is vibrating in the direction perpendicular to the front plate 8201a as indicated by an arrow 13025a. Further, in FIG. 222 (D), it can be seen that the free end of the piezoelectric bimorph element 13025 vibrates without touching any part other than the extension 42027c, and the reaction of the vibration is transmitted only to the connection part 42027 via the support part 42027c. .

  FIG. 223 is a cross-sectional view of Example 137 according to the embodiment of the present invention and a modification thereof, which is configured as a mobile phone 43001 or a mobile phone 44001. Since the embodiment 137 and its modified example have many points in common with the embodiment 136 of FIG. Further, since there is no difference in the appearance from the embodiment 136, FIG. 222 (A) is used and the perspective view in FIG. 223 is omitted. The difference between the embodiment 137 of FIG. 223 and the embodiment 136 of FIG. 222 is that the piezoelectric bimorph element 13025 is arranged in the vertical direction in the embodiment 136, whereas the piezoelectric bimorph element 43025 or 44025 is arranged horizontally.

  FIG. 223 (A) corresponds to a cross section taken along line B1-B1 of FIG. 222 (A) in Embodiment 137. As apparent from FIG. 223 (A), also in Example 137, an opening provided in the upper frame 8227 below the connecting portion 43027 connecting the cartilage conduction portion for right ear 43024 and the cartilage conduction portion for left ear 43026. An extension 43027c is provided to extend through the inside of the mobile phone 43001. However, the piezoelectric bimorph element 43025 is arranged sideways, and is cantilevered by inserting one end on the right side in the drawing into the extension 43027c. As a result, the other end on the left side of the piezoelectric bimorph element 43025 vibrates freely, and its reaction is transmitted from the extension part 43027c to the cartilage conduction parts 43024 and 43026 via the coupling part 43027, respectively. The vibration direction is a direction perpendicular to the front plate 8201a (a direction perpendicular to the plane of FIG. 223), similarly to the embodiment 136.

  According to FIG. 223 (B) corresponding to the top view of FIG. 222 (A) (involving the example 136), the cartilage conduction part 43024 for the right ear and the left ear in the example 137 in the same manner as in the example 136. It can be seen that the cartilage conduction part 43026 and the connection part 43027 are continuously and integrally molded by the elastic body. In FIG. 223 (B), similarly to FIG. 222 (C), the extended portion 43027c inside and the piezoelectric bimorph element 43025 inserted laterally into the extended portion 43027c are indicated by broken lines. According to FIG. 223 (C), which is a cross-sectional view taken along line B2-B2 shown in FIGS. 223 (A) and 223 (B), similarly to the embodiment 136, in the embodiment 137, the extension 43027c also You can see that it is integrated with

  Similarly to the embodiment 136, also in the embodiment 137, the piezoelectric bimorph element 43025 is supported only by the extension portion 43027c, and is transmitted from the cartilage conduction portion 43024 or 43026 to the ear cartilage via the connecting portion 43027 integrally formed therewith. Therefore, efficiency is high in terms of cartilage conduction. Further, the direct vibration of the piezoelectric bimorph element 43025 is not transmitted to the upper frame 8227, the front plate 8201a, and the back plate 8021b, and the vibration of the elastic body with respect to the upper frame 8227, the front plate 8201a, and the back plate 8021b due to a difference in acoustic impedance. It is cut off, and the generation of air conduction sound due to the vibration of the front plate 8201a and the back plate 8021b is suppressed. Furthermore, the adhesion to the upper frame 8227 also suppresses the generation of air-conducted sound from the connecting portion 43027 and the cartilage conduction portions 43024 and 43026 themselves. Both ends are protected from the shock when the mobile phone 43001 falls by the covering with the elastic body serving as the cartilage conduction part, and the piezoelectric bimorph element 43025 is destroyed when the mobile phone 43001 falls due to the buffering action of the elastic body. Is prevented.

  FIGS. 223 (D) to 223 (F) show modifications of the embodiment 137. FIG. 223 (D) is a cross-sectional view taken along the line B1-B1 of FIG. 222 (A) (in the embodiment 136 which is incorporated). As shown in FIG. 223 (D), in the modified example, the cartilage conduction part for right ear 44024 and the cartilage conduction part for left ear 44026 are provided on the upper frame 8227 from the connecting part 44027 at equal distances across the midpoint. There are provided two extensions 44027e and 44027f extending downward into the mobile phone 44001 through the two openings. The piezoelectric bimorph element 44025 is arranged sideways, but is not supported in a cantilever manner as in the embodiment 137, but is inserted into the two extension portions 44027e and 44027f from the inside to be supported at both ends. In order to provide such support, for example, the elastic portions of the extension portions 44027e and 44027f are used to expand the space therebetween so that both ends of the piezoelectric bimorph element 44025 are fitted. In the case of such a two-sided support, the central portion of the piezoelectric bimorph element 44025 vibrates freely, and the reaction is transmitted from the extension parts 44027e and 44027f to the cartilage conduction parts 44024 and 44026 via the connection part 44027, respectively. The vibration direction is a direction perpendicular to the front plate 8201a (a direction perpendicular to the plane of FIG. 223) in the same manner as in the embodiment 137.

  According to FIG. 223 (E) which corresponds to the top view of FIG. 222 (A) (involving the embodiment 136), the modification of the embodiment 137 is similar to the embodiment 137 of FIG. It can be seen that the cartilage conduction part for ear 44024, the cartilage conduction part for left ear 44026, and the connecting part 44027 are continuously and integrally molded by the elastic body. Also in FIG. 223 (E), as in FIG. 223 (B), two extension portions 44027e and 44027f inside and the piezoelectric bimorph element 44025 sandwiched therebetween and supported horizontally are indicated by broken lines. I have. According to FIG. 223 (F), which is a cross-sectional view taken along the line B2-B2 shown in FIGS. It can be seen that they are united.

  Also in the modification of the embodiment 137, the piezoelectric bimorph element 44025 is supported only by the two extension parts 44027e and 44027f, and is transmitted from the cartilage conduction part 44024 or 44026 to the ear cartilage via the connection part 44027 integrally formed therewith. Therefore, the efficiency is the same in terms of cartilage conduction. Similarly, the generation of air-conducted sound due to the vibration of the front plate 8201a and the back plate 8021b, and the generation of air-conducted sound from the connecting portion 44027 and the cartilage conduction portions 44024 and 44026 are also suppressed. Further, the same applies to the protection of both corners when the mobile phone 44001 is dropped by the elastic body and the buffer protection of the piezoelectric bimorph element 44025 itself.

  FIG. 224 is a perspective view and a cross-sectional view of Example 138 according to the embodiment of the present invention, which are configured as a cellular phone 45001. Since the embodiment 138 has many parts in common with the embodiment 136 of FIG. 222, corresponding portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. The first difference between the embodiment 138 in FIG. 224 and the embodiment 136 in FIG. 222 is that the piezoelectric bimorph element 13025 is vertically cantilevered in the embodiment 136, whereas the piezoelectric bimorph element 13025 is supported in the embodiment 138. This is the point that 45025 is entirely adhered sideways. The second point is that the cartilage conduction part is arranged so as to cover both corners of the upper side of the mobile phone 45001. This will be specifically described below.

  FIG. 224 (A) is a front perspective view of the embodiment 138 similarly to FIG. 222 (A) in the embodiment 136. Only the portions different from the embodiment 136 will be described. The upper surface, the front and rear surfaces, and the side surfaces (the portions corresponding to the corners of the front plate 8201a, the back plate 8021b, and the upper frame 8227) of the two corners of the mobile phone 45001 are each a cartilage conduction part for the right ear. It is entirely covered by 45024 and the cartilage conduction part 45026 for the left ear. The cartilage conduction part for right ear 45024 and the cartilage conduction part for left ear 45026 having such a shape are respectively adhesively coated on both corners of the mobile phone 45001. Further, the upper side of the upper frame 8227 is adhesively coated with a connecting portion 45027 that connects the cartilage conduction portion for right ear 45024 and the cartilage conduction portion for left ear 45026 as described above. Similarly to the embodiment 136, the cartilage conduction part 45024 for the right ear, the cartilage conduction part 45026 for the left ear, and the connecting part 45027 in the embodiment 138 are made of an elastic body having an acoustic impedance similar to that of the ear cartilage, and are integrally formed. It is molded.

  FIG. 224 (B) corresponds to a cross section taken along line B1-B1 of FIG. 224 (A). As is clear from FIG. 224 (B), also in the embodiment 138, an opening provided in the upper frame 8227 below the connecting portion 45027 connecting the cartilage conduction portion for right ear 45024 and the cartilage conduction portion for left ear 45026. An extension 45027c is provided extending through the section and into the mobile phone 45001. The piezoelectric bimorph element 45025 is entirely adhesively supported on the front surface of the extension 45027c in the horizontal direction. As a result, the extension portion 45027c vibrates according to the vibration of the entire piezoelectric bimorph element 45025, and this vibration is transmitted to the cartilage conduction portions 45024 and 45026 via the connection portion 45027, respectively. The vibration direction is a direction perpendicular to the front plate 8201a (a direction perpendicular to the plane of FIG. 224), similarly to the embodiment 136.

  FIG. 224 (C) is a top view of FIG. 224 (A), and the cartilage conduction part 45024 for the right ear, the cartilage conduction part 45026 for the left ear, and the connecting part 45027 are connected by an elastic body in the same manner as in Example 136. It can be seen that they are integrally molded. Further, similarly to FIG. 222 (C), in FIG. 224 (C), the extended portion 45027c inside and the piezoelectric bimorph element 45025 attached to the whole in the horizontal direction are indicated by broken lines. According to FIG. 224 (D), which is a cross-sectional view taken along line B2-B2 shown in FIGS. 224 (A) and 224 (B), similarly to the embodiment 136, in the embodiment 138, the extension portion 45027c is connected to the connecting portion 45027. You can see that it is integrated with Further, also in the embodiment 136 and the embodiment 137, the piezoelectric bimorph element is arranged close to the vicinity of the back plate 8201b so as to leave a space near the front plate 8201a in the upper part of the mobile phone where many members are arranged. However, in the embodiment 138, in particular, since the piezoelectric bimorph element 45025 is entirely affixed to the extension 45027c in the horizontal direction, as is clear from FIG. 224 (D), the space near the front plate 8201a at the top of the mobile phone is reduced. It is possible to empty more efficiently.

  Also in the embodiment 138, the piezoelectric bimorph element 45025 is supported only by the extension 45027c, and is transmitted from the cartilage conduction part 45024 or 45026 to the ear cartilage via the connection part 45027 formed integrally therewith. The good things are the same. Similarly, generation of air-conducted sound due to vibration of the front plate 8201a and back plate 8021b and generation of air-conducted sound from the connecting portion 45027 and the cartilage conduction portions 45024 and 45026 themselves are similarly suppressed. Further, the same applies to the protection of both corners when the mobile phone 45001 is dropped, etc., and the buffer protection of the piezoelectric bimorph element 45025 itself by the elastic body.

  Further, in Example 138, the cartilage conduction portions 45024 and 45026 are arranged so as to cover both corners of the upper side of the mobile phone 45001 as is clear from FIG. Good cartilage conduction can be realized. Further, this is one of the preferable structures from the viewpoint of protecting the corners.

  FIG. 225 is a perspective view and a cross-sectional view of Example 139 according to the embodiment of the present invention, which is configured as a cellular phone 46001. The embodiment 139 also has many points in common with the embodiment 136 of FIG. 222, and the corresponding parts are denoted by the same reference numerals and the description thereof is omitted unless necessary. The embodiment 139 in FIG. 225 is different from the embodiment 136 in FIG. 222 in that the piezoelectric bimorph element 13025 is vertically cantilevered in the embodiment 136, whereas the embodiment 139 is similar to the embodiment 138 in the embodiment 136. The point is that the piezoelectric bimorph element 46025 is entirely bonded in the horizontal direction. However, in the embodiment 139, unlike the embodiment 138, the vibration direction of the piezoelectric bimorph element 46025 is a direction perpendicular to the upper frame 8227 (the vertical direction in the mobile phone 46001).

  FIG. 225 (A) is a front perspective view of the embodiment 138 similarly to FIG. 222 (A) in the embodiment 136. The description is omitted because there is no difference in appearance. FIG. 225B corresponds to a cross-sectional view taken along line B1-B1 in FIG. 225A. As apparent from FIG. 225 (B), in Example 139, a part of the lower part of the connecting part 46027 connecting the cartilage conduction part for right ear 46024 and the cartilage conduction part for left ear 46026 was provided on the upper frame 8227. The exposed portion 46027c is exposed from the opening. The piezoelectric bimorph element 46025 is entirely bonded and supported laterally on the lower surface of the exposed portion 46027c. The vibration direction is a direction perpendicular to the upper frame 8227 (up and down direction in the mobile phone 46001) as indicated by an arrow 46025a. Thus, similarly to the embodiment 138, also in the embodiment 139, the exposed portion 46027c vibrates according to the vibration of the entire piezoelectric bimorph element 46025, and the vibration is transmitted to the cartilage conduction portions 46024 and 46026 via the connecting portion 46027. Each is transmitted.

  FIG. 225 (C) is a top view of FIG. 225 (A), and the cartilage conduction part for right ear 46024, the cartilage conduction part for left ear 46026 and the connecting part 46027 are continuously formed by an elastic body in the same manner as in Example 136. It can be seen that they are integrally molded. Also, broken lines indicate the exposed portion 46027c inside and the piezoelectric bimorph element 46025 affixed to the whole from the back sideways. 225 (D) which is a cross-sectional view taken along line B2-B2 shown in FIGS. 225 (A) and 225 (B) also shows an exposed portion 46027c exposed from an opening provided in the upper frame 8227 and affixed thereto. The state of the attached piezoelectric bimorph element 46025 can be seen. Further, as is clear from FIGS. 225 (B) and 225 (D), in the configuration of Example 139, the vibration direction of the piezoelectric bimorph element 46025 is perpendicular to the upper frame 8227 as indicated by an arrow 46025a (to the ear cartilage). This is one of the arrangements that takes up the least amount of space inside the mobile phone 46001. The cartilage conduction structure is located above the mobile phone where many members are arranged. Suitable for introducing.

  Also in the embodiment 139, since the piezoelectric bimorph element 46025 is attached to the exposed portion 46027c, it is supported only by the connecting portion 46027, and the vibration is transmitted from the cartilage conduction portion 46024 or 46026 integrally molded to the ear cartilage. Efficient in terms of cartilage conduction. Also in the embodiment 139, similarly to the embodiments described above, generation of air conduction sound by vibration of the front plate 8201a and the back plate 8021b, and air conduction sound from the connecting portion 45027 and the cartilage conduction portions 46024 and 46026 themselves. Are suppressed together. Further, the same applies to the advantages of protection of both corners when the mobile phone 46001 falls due to an elastic body and buffer protection of the piezoelectric bimorph element 46025 itself.

  FIG. 226 is a perspective view and a sectional view of Example 140 according to the embodiment of the present invention, and are configured as a mobile phone 47001. The embodiment 140 also has many points in common with the embodiment 136 of FIG. 222, and the corresponding parts are denoted by the same reference numerals and the description thereof will be omitted unless necessary. The first point of the embodiment 140 shown in FIG. 226 that is different from the embodiment 136 shown in FIG. 222 is that the piezoelectric bimorph element 13025 is vertically cantilevered in the embodiment 136, whereas the embodiment 140 139 is that the piezoelectric bimorph element 47025 is entirely adhered to the back side of the connecting portion 47027 in the same vibration direction as that of 139. The second point is that a connecting portion 47027 which connects the cartilage conduction portion for right ear 47024 and the cartilage conduction portion for left ear 47026 and to which the piezoelectric bimorph element 47025 is entirely adhered is below the upper frame 8227, and the cellular phone 47001 It is a point that does not appear in the appearance of. The third point is that the inner central portions of the cartilage conduction part for right ear 47024 and the cartilage conduction part for left ear 47026 pass through openings provided at both corners of the upper frame 8227, respectively, and the connection inside the mobile phone 47001 is established. This is a point connected to and integrated with the portion 47027. Hereinafter, such a structure will be described in detail.

  FIG. 226 (A) is a front perspective view of the embodiment 140. As compared with FIG. 222 (A) in the embodiment 136, as described above, since the connecting portion 47027 connecting the cartilage conduction portion for right ear 47024 and the cartilage conduction portion for left ear 47026 is below the upper frame 8227, It does not appear on the appearance of the mobile phone 47001.

  FIG. 226 (B) corresponds to a cross section taken along line B1-B1 of FIG. 226 (A). As is clear from FIG. 226 (B), in Example 140, the cartilage conduction part 47024 for the right ear and the cartilage conduction part 47026 for the left ear are provided such that a part of the upper frame 8227 divides the central part of both corners. It is integrated with the connecting portion 47027 inside the mobile phone 47001 through the opening provided. The connecting portion 47027 is bonded to the back side of the upper frame 8227. Further, the piezoelectric bimorph element 47025 is entirely bonded and supported on the lower surface of the connecting portion 47027 in the horizontal direction. The vibration direction is a direction perpendicular to the upper frame 8227 (up and down direction in the mobile phone 46001) as in the embodiment 139. As a result, the vibration of the entire piezoelectric bimorph element 47025 is transmitted to the connection portion 47027, and the vibration is transmitted to the cartilage conduction portions 46024 and 46026, respectively.

  FIG. 226 (C) is a top view of FIG. 226 (A). As described above, the connecting portion 47027 for integrally connecting the cartilage conduction portion for right ear 47024 and the cartilage conduction portion for left ear 47026 is an external appearance. Does not appear. In addition, a broken line indicates a piezoelectric bimorph element 47025 that is entirely attached to the connecting portion 47027 inside. Further, the corners 8227a and 8227b of the upper frame 8227 other than the opening provided to divide the central portion to guide the cartilage conduction part for right ear 47024 into the inside of the mobile phone 47001, and the cartilage conduction part for left ear 47026 The corners 8227c and 8227d of the upper frame 8227 other than the opening provided so as to divide the central portion to guide the inside of the mobile phone 47001 are also indicated by broken lines. The structure of this portion will be further described later.

  226 (D) which is a cross-sectional view taken along the line B2-B2 shown in FIGS. 226 (A) and 226 (B) also shows the connecting portion 47027 attached to the lower side of the upper frame 8227 and the upper portion thereof The state of the obtained piezoelectric bimorph element 47025 can be seen. As is clear from FIGS. 226 (B) and 226 (D), in the configuration of the embodiment 140, the vibration direction of the piezoelectric bimorph element 47025 is perpendicular to the upper frame 8227 as in the embodiment 139. However, this is one of the arrangements that requires the least space inside the mobile phone 46001, and is suitable for introducing a cartilage conduction structure into the upper part of the mobile phone where many members are arranged.

  FIG. 226 (E) is a partial cross-sectional view showing another cross section parallel to FIG. 226 (B) around the cartilage conduction part 47024 for the right ear. 226 (E) is an opening for passing the power switch 8209 and an opening for connecting the right ear cartilage conduction part 47024 to the connecting part 47027 which are shown in the sectional view of FIG. 226 (B). The cross section is shown in the vicinity of the end face in front of the upper frame 8227, in contact with the front plate 8201a. As is clear from FIG. 226 (E), the upper part of the upper frame 8227 except for the opening provided so as to divide the central part in order to guide the cartilage conduction part for right ear 47024 into the inside of the mobile phone 47001. And the side portion are continuous at a corner 8227b, and the cartilage conduction part 47024 for the right ear is provided so as to cover such a corner 8227b of the upper frame 8227. FIG. 226 (E) is a cross-sectional view in the vicinity of the end face behind the upper frame 8227 in contact with the back plate 8201b. FIG. 226 (E) describes the structure around the cartilage conduction part 47024 for the right ear, but the structure around the cartilage conduction part 47026 for the left ear is the same.

  Also in the embodiment 140 as described above, the piezoelectric bimorph element 47025 is supported on only the connection portion 47027 by being attached to the connection portion 47027, and vibration is applied to the ear cartilage from the cartilage conduction portion 47024 or 47026 integrally formed therewith. Since it is transmitted, it is efficient in terms of cartilage conduction. Also, in the embodiment 140, similarly to the embodiments described above, the generation of the air conduction sound due to the vibration of the front plate 8201a, the back plate 8021b, and the upper frame 8227 is suppressed. Since the connecting portion 47027 is inside the upper frame 8227, it does not contribute to the generation of air conduction sound. The advantages of the protection of both corners when the mobile phone 47001 is dropped by the elastic body and the buffer protection of the piezoelectric bimorph element 47025 itself are the same as those in the embodiments described above.

  FIG. 227 is a perspective view and a cross-sectional view of Example 141 according to the embodiment of the present invention, and are configured as a mobile phone 48001. The embodiment 141 also has many points in common with the embodiment 136 in FIG. The first point of the embodiment 140 in FIG. 227 different from the embodiment 136 in FIG. 222 is that the piezoelectric bimorph element 13025 is used as the cartilage conduction vibration source in the embodiment 136, whereas the embodiment 141 uses the piezoelectric bimorph element 13025 in FIG. In the same manner as in Example 88, the electromagnetic vibrator 48025 is employed as a cartilage conduction vibration source. Second, the second point is that the cartilage conduction portions 48024 and 48026 cover both upper corners of the mobile phone 48001, and the connecting portion 48027 is also arranged so as to cover the upper edge of the mobile phone 48001. Is a point. This will be specifically described below.

  FIG. 227 (A) is a front perspective view of Example 141. As compared with FIG. 222 (A) in the embodiment 136, as described above, in the embodiment 141, the cartilage conduction portions 48024, 48026 and the connection portion 48027 connecting them are configured to entirely cover the upper side of the mobile phone 48001. You.

  FIG. 227 (B) corresponds to a cross-sectional view along line B1-B1 in FIG. 227 (A). As is clear from FIG. 227 (A), in the same manner as in the embodiment 136, in the embodiment 141, an upper portion is provided at a lower portion of the connecting portion 48027 which connects the cartilage conducting portion 48024 for the right ear and the cartilage conducting portion 48026 for the left ear. An extension 48027c is provided to extend into the mobile phone 48001 through an opening provided in the frame 8227. The electromagnetic vibrator 48025 is embedded and supported in the extension 48027c. As a result, the vibration of the electromagnetic vibrator 48025 is transmitted to the extension 48027c, and the vibration is transmitted to the cartilage conduction parts 48024 and 48026 via the coupling part 48027, respectively. In the case of the working example 141, since the connecting portion 48027 is formed wide so as to cover the upper side of the mobile phone 48001, the vibration transmission path is wide. Further, even when the center of the upper side of the mobile phone 48001 is applied to the ear cartilage as in a normal mobile phone, the vibration of the connecting portion 48027 is transmitted to the ear cartilage, so that cartilage conduction can be obtained. As described above, in the example 141, the connection portion 48027 can also function as a cartilage conduction portion.

  FIG. 227 (C) is a top view of FIG. 227 (A). As described above, the cartilage conduction part for right ear 48024, the cartilage conduction part for left ear 48026, and the connecting part 48027 are integrally formed. It can be seen that the mobile phone 48001 covers the upper side as a whole. The extension 48027c and the electromagnetic vibrator 48025 embedded therein are indicated by broken lines. 227 (D) which is a cross-sectional view taken along B2-B2 shown in FIGS. 227 (A) and 227 (B) also shows that the connecting portion 48027 and the extension portion 48027c are integrated.

  Also in Example 141, the electromagnetic vibrator 48025 as a cartilage conduction vibration source is supported by only the connection portion 48027 by being embedded in the extension portion 48027c, and is transferred from the cartilage conduction portion 48024 or 48026 integrally molded with the ear cartilage. Since vibration is transmitted, efficiency is high in terms of cartilage conduction. Further, also in the embodiment 141, similarly to the embodiments described above, the generation of the air conduction sound by the vibration of the front plate 8201a and the back plate 8021b, and the air conduction sound from the connecting portion 48027 and the cartilage conduction portion 48024, 48026 themselves. Are suppressed together. Furthermore, the same advantages are provided for the protection of both corners when the mobile phone 48001 is dropped by the elastic body and the buffer protection of the electromagnetic vibrator 48025 itself as a cartilage conduction vibration source.

  The implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, individual features shown in Embodiments 136 to 141 are not necessarily specific to each embodiment, and individual features can be implemented in combination with each other. For example, in Embodiment 136, the configuration in which the cartilage conduction portion for right ear 48024, the cartilage conduction portion for left ear 48026, and the connection portion 48027 integrally formed in Embodiment 141 cover the entire upper side of the mobile phone 48001 is adopted. Is also good. Conversely, a configuration such as the cartilage conduction part 45024 for the right ear, the cartilage conduction part 45026 for the left ear, and the connecting part 45027 as in the embodiment 138 may be employed in the embodiment 141.

  When the cartilage conduction vibration source is embedded and supported in the connecting portion 48027 as in the embodiment 141 of FIG. 227, and the thickness of the cartilage conduction vibration source is sufficiently smaller than the thickness of the connecting portion 48027, the upper frame 8227 is used. The cartilage conduction vibration source may be supported outside (upper side) of the upper frame 8227 without providing an opening. Even with such a structure, as a result of the cartilage conduction vibration source being embedded in the connecting portion 48027, the cartilage conduction vibration source can be supported so as not to come into contact with the upper side of the housing of the mobile phone 48001 (upper frame 8227. In the case where the cartilage conduction vibration source is embedded in the connecting portion, the cartilage conduction vibration source is not limited to the case where the electromagnetic vibrator as in Embodiment 141 is employed, but the case where the piezoelectric bimorph element is employed as in the other embodiments. Conversely, in Examples 136 to 140, it is also possible to employ an electromagnetic vibrator as in Example 141 as the cartilage conduction vibration source.

  FIG. 228 is a perspective view and a sectional view of Example 142 according to the embodiment of the present invention, and are configured as a mobile phone 49001. Since the embodiment 142 has many points in common with the embodiment 140 of FIG. 226, corresponding portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. The embodiment 142 of FIG. 228 differs from the embodiment 140 of FIG. 226 in that the piezoelectric bimorph element 47025 is supported by the connecting portion 47027 via a hard vibration conducting plate 49027 having good vibration transmission. Hereinafter, this will be described in detail.

  As shown in the front perspective view of FIG. 228 (A), the appearance of the embodiment 142 is the same as the appearance of the embodiment 140 shown in FIG. 226 (A), and the description is omitted. FIG. 228B corresponds to a cross-sectional view taken along line B1-B1 in FIG. 228A. As is clear from FIG. 228 (B), in Example 142, a hard vibration conducting plate 49027 having better vibration transmission properties than the connecting portion 47027 is attached to the back side of the elastic connecting portion 47027. A piezoelectric bimorph element 47025 is attached and supported on the back side of the vibration conducting plate 49027. As can be seen from FIG. 228 (B), both ends of the rigid vibration conducting plate 49027 are extended along the back side of the extension portion 847027 and inserted into the cartilage conducting portion for right ear 47024 and the cartilage conducting portion for left ear 47026, respectively. I have. In FIG. 228 (B), the hard vibration conduction plate 49027 appears to be interrupted on the way from the piezoelectric bimorph element 47025 to the left ear cartilage conduction part 47026, but does not contact the external earphone jack 8246. This is because the portion of the hole provided in the rigid vibration conducting plate 49027 has a cross section. In the portion other than the hole, the rigid vibration conducting plate 49027 is moved from the portion of the piezoelectric bimorph element 47025 to the cartilage conduction portion 47026 for the left ear. It is continuous toward. Similarly, the portion from the piezoelectric bimorph element 47025 to the left ear cartilage conduction portion 47024 is not interrupted at the power switch 8209, and is provided on the rigid vibration conduction plate 49027 to avoid the power switch 8209. Except for the hole portion, the rigid vibration conducting plate 49027 is continuous from the portion of the piezoelectric bimorph element 47025 to the cartilage conducting portion 47024 for the right ear.

  With the above configuration, the vibration of the piezoelectric bimorph element 47025 is transmitted to the cartilage conduction part for right ear 47024 and the cartilage conduction part for left ear 47026 not only through the connection part 47027 but also through the hard vibration conduction plate 49027. As described in detail below, the hard vibration conducting plate 49027 is in contact only with the elastic extension 47027, the cartilage conducting portion for right ear 47024 and the cartilage conducting portion for left ear 47026, and the front plate 8201a, Vibration is not directly transmitted to the back plate 8021b and the upper frame 8227. Further, for example, even if the mobile phone falls and a shock is applied from the outside to the front plate 8201a, the back plate 8021b, and the upper frame 8227, the rigid vibration conducting plate 49027 and the piezoelectric bimorph element 47025 supported by the rigid vibration conducting plate 49027 remain. Since the elastic body extension 47027, the cartilage conduction part 47024 for the right ear and the cartilage conduction part 47026 for the left ear are interposed, the impact is reduced, and the breakage of the piezoelectric bimorph element 47025 is prevented.

  FIG. 228 (C) is a top view of FIG. 228 (A). As shown by the broken lines, the hard vibration conducting plate 49027 is inserted into the cartilage conducting portion for right ear 47024 and the cartilage conducting portion for left ear 47026 without contacting the front plate 8201a and the back plate 8021b. Further, the hard vibration conducting plate 49027 is not in contact with the external earphone jack 8246 due to the hole 49027a. Further, the rigid vibration conducting plate 49027 is not in contact with the power switch 8209 due to the square hole. Accordingly, the vibration transmitted from the piezoelectric bimorph element 47025 indicated by the broken line to the hard vibration conduction plate 49027 is directly transmitted to the coupling portion 47027, the cartilage conduction portion for right ear 47024, and the cartilage conduction portion for left ear 47026. Only.

  228 (D), which is a cross-sectional view taken along the line B2-B2 shown in FIGS. 228 (A) and 228 (B), shows that the hard vibration conducting plate 49027 is not in contact with the front plate 8201a and the back plate 8021b. Further, FIG. 228 (E) shows another cross section parallel to FIG. 228 (B) near the cartilage conduction part 47024 for the right ear and near the end face in front of the upper frame 8227 in contact with the front plate 8201a. . FIG. 228 (E) also shows that the cross section of the hard vibration conducting plate 49027 does not appear near the front plate 8201a, and that the hard vibration conducting plate 49027 is not in contact with the front plate 8201a.

  By the way, according to the precise measurement of the frequency characteristics of the sound pressure in the external auditory canal during cartilage conduction, when the cartilage conduction part came into contact with the ear cartilage, there was a phenomenon that a valley region where the sound pressure was small at around 1.5 kHz depending on conditions was recognized. . This valley region is generated particularly when the direct air-conducted sound component emitted from the cartilage conduction part and penetrated from the entrance of the ear canal is large.

  The embodiment 142 in FIG. 228 transmits the vibration of the piezoelectric bimorph element 47025 to the cartilage conduction part 47024 for the right ear and the cartilage conduction part 47026 for the left ear by the rigid vibration conduction plate 49027 as described above, and the rigid vibration conduction plate 49027 By avoiding contact with the front plate 8201a, generation of air conduction sound from the front plate 8201a is suppressed. Therefore, when the cartilage conduction part for right ear 47024 or the cartilage conduction part for left ear 47026, which is the corner of the mobile phone 49001, is applied to the vicinity of the entrance of the external auditory canal, the cartilage conduction part for right ear 47024 or the top surface and the side surface of the corner is formed. The cartilage conduction from the left ear cartilage conduction part 47026 to the ear cartilage occurs to increase the cartilage air conduction component, and the direct air conduction sound from the front plate 8201a facing the entrance of the external auditory canal at the front of the corner. The components become smaller. As described above, in the configuration in which vibration is transmitted to the ear cartilage from the upper surface and the side surface in the corner of the mobile phone and the direct air conduction sound from the front surface of the corner is suppressed, the valley region of the sound pressure around 1.5 kHz as described above is used. It is beneficial to prevent it from occurring.

  FIG. 229 is a perspective view and a cross-sectional view of Example 143 according to the embodiment of the present invention, which are configured as a mobile phone 50001. Since the embodiment 143 has many parts in common with the embodiment 142 of FIG. 228, the corresponding parts are denoted by the same reference numerals and the description thereof will be omitted unless necessary. The embodiment 143 of FIG. 229 is different from the embodiment 142 of FIG. 228 in that the rigid vibration conducting plate 49027, which has no connecting portion 47027 and supports the piezoelectric bimorph element 50025 and has good vibration transmitting properties, is provided with the cartilage conduction for the right ear. This is a point supported only by the part 47024 and the cartilage conduction part 47026 for the left ear. Hereinafter, this will be described.

  The appearance of FIG. 229 (A) is the same as FIG. 228 (A) showing the appearance of the embodiment 142. 229 (B), which is a cross-sectional view taken along the line B1-B1 of FIG. The portions 47026 are separately provided at the corners. The hard vibration conducting plate 49027 supporting the piezoelectric bimorph element 50025 is floating from the upper frame 8227 and is supported only by the cartilage conducting portion for right ear 47024 and the cartilage conducting portion for left ear 47026. Similarly to the embodiment 142, the rigid vibration conducting plate 49027 of the embodiment 143 is made of a material having a better vibration transmitting property than the elastic cartilage conducting portion 47024 for the right ear and the cartilage conducting portion 47026 for the left ear. . In the structure of the embodiment 143, the vibration is not directly transmitted from the hard vibration conducting plate 49027 to the front plate 8201a, the back plate 8021b and the upper frame 8227 as in the embodiment 142. Further, when an external impact is applied to the front plate 8201a, the rear plate 8021b, and the upper frame 8227, the impact is alleviated by the elastic cartilage conduction part 47024 for the right ear and the cartilage conduction part 47026 for the left ear, and the piezoelectric bimorph element 47025 is provided. Is also the same as in the embodiment 142.

  As can be seen from FIG. 229 (C) which is a top view of FIG. 229 (A), even in the embodiment 143, the hard vibration conducting plate 49027 does not contact the front plate 8201a, the back plate 8021b, and the external earphone jack 8246 and the right ear. Are supported from both sides by the cartilage conduction part 47024 for cartilage and the cartilage conduction part 47026 for left ear. As can be seen from FIG. 229 (C), in the example 143, the piezoelectric bimorph element 50025 is placed near the center of the upper surface in order to balance the vibration because the hard vibration conducting plate 49027 is floating from the upper frame 8227. Are located.

  229 (D), which is a cross-sectional view taken along line B2-B2 shown in FIGS. 229 (A) and 229 (B), shows that the hard vibration conducting plate 49027 does not contact the front plate 8201a and the back plate 8021b. It can be seen that it is floating from the frame 8227. FIG. 229 (E), which is a cross-sectional view similar to FIG. 228 (E) of Example 142, shows that the hard vibration conducting plate 49027 is not in contact with the front plate 8201a.

  FIG. 230 is a schematic diagram of Example 144 according to the embodiment of the present invention, which is configured as a stereo earphone. FIGS. 230 (A) to 230 (C) relating to the embodiment 144 have a lot in common with FIGS. 209 (A) to 209 (C) relating to the embodiment 131. Description is omitted as far as possible. However, the embodiment 144 does not have a diaphragm as in the embodiment 131, and has a simple basic structure in which a through-hole 51024a is provided in the elastic cartilage conduction portion 51024 as in the embodiment 109 in FIG. Configuration.

  As is clear from the cross-sectional view of FIG. 230 (C), the feature of the embodiment 144 of FIG. 230 is that the surface facing the ear canal entrance (the front side in FIG. 230 (A)) and the inner surface of the through hole 51024a when the earphone is attached. The point is that the hard material layer 51027 is attached. In FIG. 230, the hard material layer 51027 is shown to be extremely thick for emphasis, but is actually a relatively thin layer. The hard material layer 51027 makes the acoustic impedance of the front surface of the elastic cartilage conduction portion 51024 and the inner surface of the through hole 51024a different from the cylindrical side peripheral surface of the cartilage conduction portion 51024, and suppresses the vibration of these surfaces. As a result, when the earphone is worn on the ear, a sufficient cartilage air conduction component can be obtained by contact between the cylindrical peripheral surface of the cartilage conduction portion 51024 and the cartilage around the entrance of the external auditory canal, and the cartilage conduction portion 51024 can be obtained. The air conduction sound component is directly suppressed from the front surface and the inner surface of the through hole 51024a. This configuration is useful in preventing the above-described valley region of sound pressure around 1.5 kHz from being generated.

  The implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, in the embodiment 142 shown in FIG. 228, the piezoelectric bimorph element 47025 may be arranged near the center of the upper surface in the same manner as in the embodiment 143 shown in FIG.

  In the embodiment 144 shown in FIG. 230, the hard material layer is attached to the surface facing the entrance of the ear canal and the inner surface of the through-hole when the earphone is attached. . Further, the means for directly suppressing the air-conducted sound component from the front of the cartilage conduction part or the inner surface of the through-hole is not limited to the attachment of the hard material layer, but may be another suppression means. For example, for the front, the structure is different from the cylindrical peripheral surface that contacts the ear cartilage (for example, the part that contacts the ear cartilage is smooth, the part that does not contact is rough, or the front is (The surface does not vibrate even if the inside vibrates.) In addition, for the inner surface of the through-hole, it is possible to provide a directivity facing the outside of the ear canal.

  FIG. 231 is a perspective view, a cross-sectional view, a top view, and a side view of Example 145 according to an embodiment of the present invention, which is configured as a cellular phone 52001. The embodiment 145 has many parts in common with the embodiment 107 of FIG. 178, and the corresponding parts are denoted by the same reference numerals and the description thereof will be omitted unless necessary. The embodiment 145 in FIG. 231 differs from the embodiment 107 in FIG. 178 in the mounting structure of the upper frame 8227. Specifically, in the upper frame 8227, not only between the right frame 8201c and the left frame 8201e, but also between the front plate 8201a and the back plate 8201b, an elastic body 52065 as a vibration absorbing material is interposed, The point is that the vibration of the upper frame 8227 is not easily transmitted to other housing parts. The piezoelectric bimorph element 52025 serving as a vibration source is of a small size, for example, similar to the embodiment 143 of FIG.

  The perspective view of FIG. 231 (A) shows the above structure, in which the elastic body 52065 is provided around the upper frame 8227, and includes the right frame 8201c, the left frame 8201e, the front plate 8201a, and the rear plate. The vibration of the upper frame 8227 is less likely to be transmitted to them by being interposed between them.

  As apparent from FIG. 231 (B), which is a cross-sectional view taken along the line B1-B1 of FIG. FIG. 231 (C), which is a top view, shows that an elastic body 52065 is interposed between the upper frame 8227, the front plate 8201a, and the back plate 8201b. In FIG. 231 (D), which is a cross-sectional view taken along line B2-B2 of FIG. 231 (A) or 231 (B), an elastic body 52065 is interposed between the upper frame 8227, the front plate 8201a, and the back plate 8201b. It can be seen that they are not in direct contact. Further, in FIG. 231 (E) which is a left side view of FIG. 231 (A), an elastic body 52065 is interposed between the left corner 8226 of the upper frame 8227 and the left frame 8201e, the front plate 8201a and the back plate 8201b. However, it can be seen that these are not in direct contact.

  FIG. 232 is a perspective view and a top view of Example 146 according to the embodiment of the present invention, and is configured as a mobile phone 53001. Since the embodiment 146 has many parts in common with the embodiment 142 of FIG. 228, corresponding portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. Also, since the cross-sectional views are almost the same, illustration and description are omitted. The embodiment 146 of FIG. 232 differs from the embodiment 142 of FIG. 228 in that it has a means for switching the air conduction sound generation as shown in the embodiment 49 of FIG. However, the specific configuration is greatly different from r as described below.

  As shown in the perspective view of FIG. 232 (A), a slot 53027a is provided in the upper frame 8227, and the air conduction generation switching operation section 53027b is slidable along the slot 53027a. Incidentally, the state of FIG. 232 (A) is a state in which no air conduction sound is generated, and in this state, the embodiment 146 functions in the same manner as the embodiment 142 of FIG. On the other hand, when the air conduction sound generation switching operation section 53027b is slid to the left along the slot 53027a, an air conduction sound is generated, and an air conduction sound satisfying a predetermined standard of the mobile phone is generated from the upper part of the front plate 5201a. I do. The air conduction sound generation switching operation section 53027b is stably held at each position by a click mechanism (not shown).

  FIG. 232 (B) is a top view of mobile phone 53001 in a state where no air conduction sound is generated. As is clear from FIG. 232 (B), a notch 49027a is provided on the front plate 5201a side of the hard vibration conducting plate 49027, and a movable wedge 53027 is provided at a position corresponding to the notch 49027a. I have. The movable wedge 53027 is slidable integrally with the air conduction sound generation switching operation section 53027b shown in FIG. 232 (A). In the state of FIG. 232 (B), the movable wedge 53027 is separated from the notch 49027a. ing. Thus, the vibration of the upper frame 8227 is not transmitted to the front plate 5201a.

  FIG. 232 (C) is a top view of mobile phone 53001 in an air-conducting sound generation state. As is clear from FIG. 232 (C), the movable wedge 53027 moves to the left integrally with the air conduction sound generation switching operation section 53027b shown in FIG. It becomes a bite form. As a result, the vibration of the upper frame 8227 is transmitted to the front plate 5201a, and the entire front plate 5201a (particularly, the upper portion of the front plate 5201a) vibrates to generate a predetermined air conduction sound.

  Note that even in the state of FIG. 232 (C), a call can be made by cartilage conduction if the corner is touched to the ear cartilage. At this time, the direct air conduction sound due to the vibration of the corner portion of the front plate 5201a also enters the ear hole, so that the cartilage air conduction sound is a sound in which a high-frequency component due to the direct air conduction sound is added. Therefore, the switching configuration of the embodiment 146 can be applied to frequency characteristic switching by a language described later.

  As described above, in the embodiment 146 of FIG. 232, a call by cartilage conduction is possible in the same manner as the embodiment 142 of FIG. 228, and a call by a conventional air conduction sound is also possible, if necessary. , Which can satisfy the standard of a normal mobile phone. In addition, depending on the user's preference, the mobile phone is usually used as a normal mobile phone in the state of FIG. FIG. 232 (B) can be used when it is desired to prevent the surroundings from being disturbed or the privacy from leaking due to sound leakage caused by air conduction. As shown in FIGS. 232 (B) and (C), the piezoelectric bimorph element 53025 is arranged near the front plate 8201a in order to increase the efficiency of air conduction sound generation.

  FIG. 233 is a block diagram related to Example 147 according to the embodiment of the present invention, and is configured as a mobile phone. The block diagram of the embodiment 147 has many parts in common with the block diagram of the cartilage conduction vibration source device of the embodiment 82 shown in FIG. 122. The description is omitted. A feature of the embodiment of FIG. 233 is that a means for performing switching according to a difference in language in cartilage conduction used for a telephone call of a mobile phone is provided.

  For example, Japanese and English have different contribution ratios of vowels and consonants in the language. It is said that there is much information in the frequency band. It is said that Chinese also has a lot of information in a relatively high frequency band.

  To cope with this, in the embodiment 147, a digital acoustic processing circuit 54038 is provided in the drive circuit 54003 for the piezoelectric bimorph element 7013, and the piezoelectric bimorph element 7013 is used for cartilage conduction in a frequency band corresponding to a language difference. I make it vibrate. Specifically, a Japanese equalizer 54037a, a standard equalizer 54037b, and an English equalizer 54037c are provided in the digital sound processing circuit 54038, and these are appropriately switched by a switching unit 54038d controlled by an application processor 54039 and input to the DA conversion circuit 7138c. . By the way, "Japanese" and "English" in the Japanese equalizer 54037a and the English equalizer 54037c only name the equalizer as a representative, and for example, the English equalizer 54037c is said to have a relatively large amount of information in a high frequency band. Also applicable to Chinese and other languages. The standard equalizer 54037b is intermediate between these. Since cartilage conduction has relatively low frequencies, the Japanese equalizer 54037a slightly lowers the volume and cuts the high frequency range slightly, and the English equalizer 54037c enhances the high frequency band by raising the volume above the standard. And attenuate the low frequency range.

  The application processor 54039 controls the switching unit 54038d based on various conditions, in addition to controlling a normal mobile phone function. Specifically, a switching control signal is output to switching section 54038d based on an equalizer switching operation by manual operation section 54509. Since the operation by the manual operation unit 54509 has priority over the switching based on all other conditions, if the user determines that the automatic switching described later is inappropriate, it can be changed manually.

  The manual operation unit 54509 can also manually switch the display language on the display unit 54005. The application processor 54039 controls the legal language switching display driver 54041 based on such a display language switching operation to switch the language display on the display unit 5405. The application processor 54039 outputs a switching control signal to the switching unit 54038d in conjunction with the switching of the display language in the display unit 54005. Conversely, when the equalizer switching operation is manually performed, the application processor 54039 can switch the display language in conjunction with the manual operation. Whether or not to perform this linkage can be set in advance.

  The application processor 54039 also outputs a switching control signal to the switching unit 54038d based on the change in the language zone detected by the GPS unit 54049. The application processor 54039 also outputs a switching control signal to the switching unit 54038d based on the estimation result of the incoming language estimation analyzer 50039a that analyzes the incoming voice from the telephone function unit 54045. The incoming language estimation analyzer 50039a determines, for example, the presence or absence of a specific consonant or specific vowel, the presence or absence of a specific word, etc., included in the incoming voice by matching with a pre-stored reference voice element pattern. The rhythm is analyzed, and the language of the incoming voice is estimated and its probability is determined by one or various combinations of these, and the language is determined if possible. Note that the incoming language estimation analyzer 50039a does not necessarily estimate one language, but only determines which of the Japanese equalizer 54037a, the standard equalizer 54037b, and the English equalizer 54037c is to be used. If the probability of the estimation is low and the language of the incoming voice cannot be determined, no change is made from the currently set equalizer. Alternatively, in such a case, the standard equalizer 54037b may be employed.

  FIG. 234 is a flowchart of the operation of the application processor 54039 in the embodiment 147 of FIG. 233. Note that the flow of FIG. 234 mainly illustrates the control of language switching, and thus extracts and illustrates operations focusing on related functions. The flow of FIG. 234 includes functions of general mobile phones and the like. There are also operations of the application processor 54039 that have not been performed. The flow in FIG. 234 starts when the main power of the mobile phone is turned on, and initializes the language equalizer and the display language in step S942. This initial setting can be selected in advance by the user. For example, when a Japanese user uses the same in Japan, the Japanese equalizer is selected and the display on the display unit 54005 is displayed in Japanese.

  Next, in step S944, it is checked whether or not a manual operation for switching the equalizer has been performed. If there is no operation, the process advances to step S946 to check whether a mode for automatically changing the language equalizer is set in advance. If the automatic change mode has been set, the flow advances to step S948 to check whether a manual operation for switching the display language has been performed. If there is no manual operation for switching the display language, the process proceeds to step S950, and as a result of the movement of the mobile phone based on the detection signal from the GPS unit, whether there is a geographical change from the currently set language zone to another language zone. To check. If there is no change in the geographical linguistic zone, the flow shifts to step S952.

  In step S952, incoming language estimation processing is performed by the incoming language estimation voice analyzer 50039a. The contents are as described in the description of the block diagram in FIG. Upon completion of the incoming language estimation process, it is checked in step S954 whether or not the language estimation has been determined. If the estimation has been determined, the flow advances to step S956 to check whether the estimated language has changed from the currently set language. When a change in the estimated language is recognized, the process proceeds to step S958. On the other hand, when a change in the GPS language zone is detected in step S950, the process also proceeds to step S958. Further, when the display language switching manual operation is detected in step S948, the display language is switched to the display language according to the manual operation in step S960, and then the process proceeds to step S958.

  In step S958, it is checked whether or not a predetermined time (for example, 30 minutes) has elapsed since the equalizer switching manual operation by the manual operation unit 54509. If the predetermined time has elapsed, the flow shifts to step S962 to execute language equalizer switching, and shifts to step S964. Note that the function of step S962 includes a case where switching is not performed when the language equalizer to be applied is the same even when the language is changed.

  In step S964, the display language is switched. Unlike the case of the equalizer, the display language is switched when the language changes. Here, the reason that the display language is always switched in conjunction with the switching of the language equalizer in the automatic language equalizer change mode is that the user is notified that the language equalizer has been automatically changed, and if the user considers this inappropriate, the manual This is to encourage the user to make corrections. As described above, when a language change occurs, the display language is switched to that language, but the equalizer is not switched even if there is a change between languages with similar frequency bands. For example, when switching from English to Chinese, the display language is switched, but the equalizer is not switched, and the English equalizer is commonly used. When the display language is switched in step S964, the process proceeds to step S966.

  On the other hand, when the language estimation has not been determined in step S954, or when the language estimated in step S956 has not changed from the currently set language, or in step S958, a predetermined time has elapsed since the manual operation of the equalizer switching by the manual operation unit 54509. If not, the process moves to step S966. Here, the significance of step S958 will be supplemented. If there is no step S958, even if the equalizer desired by the user is corrected manually, if the flow goes through step S960, step S950, or step S956 in the repetition of the flow described below, the automatic change function of the equalizer is used. The settings automatically return to the state before correction. Therefore, as described above, by providing step S958, even if the equalizer is automatically changed via step S960, step S950, or step S956, the language equalizer is not switched until the predetermined time elapses without directly switching the language equalizer. The process will proceed to S966. Once manual switching of the equalizer is performed in step S944 in this manner, the manual switching is maintained for a predetermined time thereafter.

  Also, in step S944, an equalizer switching manual operation (in consideration of the convenience of a user who does not know which equalizer should be used depending on the language, the operation is a language switching operation. Therefore, the user performs the switching operation. However, if there is a case where a common language equalizer may be continuously used), the process proceeds to step S968, the language equalizer is switched, and the process proceeds to step S970. The operation of step S968 includes the case where the same language equalizer is actually used continuously even when the language switching operation is performed as described above.

  In step S970, it is checked whether or not an interlock mode for interlocking display switching with language switching for equalizer switching has been set. When the setting to the interlock mode is detected, the process proceeds to step S972, the display language is switched, and the process proceeds to step S966. On the other hand, if the setting to the interlock mode is not detected in step S970, the process directly proceeds to step S966. This is because, for example, when a Japanese receives an incoming call in English, the equalizer switching is appropriate, but it is not always necessary to change to English until the display. Also, unlike the case of automatic switching, in the case of manual switching, since the user himself knows the switching, there is no need to switch the display language to notify the change of the equalizer.

  If it is not detected in step S946 that the mode for automatically changing the language equalizer is set in advance, the flow directly proceeds to step S966.

  In step S966, it is checked whether the main power of the mobile phone has been turned off. If the main power supply is not detected to be turned off, the flow returns to step S944. Thereafter, steps S944 to 972 are repeated as long as the main power supply is not turned off, to cope with various status changes relating to language switching. On the other hand, if the main power supply is detected to be off in step S966, the flow ends.

  FIG. 235 is a perspective view and a top view of Example 148 according to the embodiment of the present invention, which is configured as a mobile phone 54001. Since the embodiment 148 has many parts in common with the embodiment 146 of FIG. 232, corresponding portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. The embodiment 148 of FIG. 235 has a different switching configuration than the embodiment 146 of FIG. Further, the switching configuration is suitable for switching due to a difference in language in cartilage conduction as shown in the embodiment 147 of FIGS. 233 and 234. However, the switching is not mechanically performed by an equalizer as in the embodiment 147, but is performed mechanically.

  As shown in the perspective view of FIG. 235 (A), since the switching in the embodiment 148 is performed by an internal mechanism, its appearance is not substantially different from that of the embodiment 143 of FIG. 229. FIGS. 232 (B) and 232 (C) are top views of the mobile phone 54001, in which the coupling state between the flexible vibration conducting plate 54027 and the elastic cartilage conducting portions 47024 and 47026 is different from each other.

  More specifically, FIG. 235 (B) shows a state in which the coupling portion between the vibration conducting plate 54027 and the cartilage conducting portions 47024 and 47026 is relatively small. That is, at both ends of the flexible vibration conducting plate 54027, holes provided in the cartilage conducting portions 47024 and 47026 with the movable coupling portions 54027a and 54027a capable of entering and exiting by utilizing their elasticity are retracted inward, respectively. 47024a and 47026a, respectively. For this reason, the depth of the movable coupling portions 54027a and 54027a is relatively shallow. In other words, the vibration of the vibration conducting plate 54027 is transmitted relatively far from the surfaces of the cartilage conducting portions 47024 and 47026 which come into contact with the ear cartilage, and the thickness of the cartilage conducting portion of the elastic body to which the vibration is transmitted is increased. In addition, in order to make the movement with respect to the cartilage conduction parts 47024 and 47026 free, the portions of the movable coupling parts 54027a and 54027a in the vibration conduction plate 54027 are not adhered to the coupling part 47027 shown in FIG. You can slide.

  On the other hand, FIG. 235 (C) shows a state in which the coupling portion between the vibration conduction plate 54027 and the cartilage conduction portions 47024 and 47026 is relatively large. In other words, in the case of FIG. 235 (C), the movable coupling portions 54027a and 54027a are indented into the holes 47024a and 47026a provided in the cartilage conduction portions 47024 and 47026, respectively, while protruding outward. Therefore, the depth of the movable coupling portions 54027a and 54027a is relatively deep. In other words, the vibration of the vibration conducting plate 54027 is transmitted relatively close to the surfaces of the cartilage conducting portions 47024 and 47026 in contact with the ear cartilage, and the thickness of the cartilage conducting portion of the elastic body to which the vibration is transmitted is reduced.

  As described above, in the embodiment 148, FIGS. 235 (B) and 235 (C) show the mechanical change of the length of the cartilage conduction part of the elastic body that transmits the vibration of the vibration conduction plate 54027 to the ear cartilage. In this case, the frequency characteristic of the vibration reaching the surface of the cartilage conduction part is changed, which is useful for mechanically changing the frequency characteristic of the cartilage conductivity according to the language.

  As described above, the switching mechanism of the embodiment 146 shown in FIG. 232 can also change the size of the air conduction sound component entering the ear hole depending on whether or not the front plate is vibrated. This is useful for mechanically changing the frequency characteristics of cartilage conductivity.

  The implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. For example, the embodiment 146 shown in FIG. 232 is described based on the embodiment 142 of FIG. 228, but may be configured based on the embodiment 143 of FIG.

  Further, although the embodiments 147 and 148 shown in FIGS. 233 to 235 are configured as one mobile phone whose frequency characteristics can be changed according to the language, a plurality of types of frequency characteristics corresponding to different languages are provided. By providing each of the mobile phones, a configuration in which the frequency characteristics are not changed in each of the mobile phones is also possible.

  FIG. 236 is a perspective view, a cross-sectional view, a top view, and a side view of Example 149 according to the embodiment of the present invention, which is configured as a cellular phone 55001. The embodiment 149 has many points in common with the embodiment 145 of FIG. 231. Therefore, corresponding parts are denoted by the same reference numerals and description thereof will be omitted unless necessary. The embodiment 149 of FIG. 236 differs from the embodiment 145 of FIG. 231 in the mounting structure of the upper frame 8227 and the arrangement of the inner camera and the infrared light proximity sensor.

  More specifically, an elastic body 52065 as a vibration absorbing material is interposed between the upper frame 8227 and the right frame 8201c, the left frame 8201e, and the back plate 8201b so that the vibration of the upper frame 8227 is not easily transmitted. ing. On the other hand, the upper frame 8227 is in direct contact with the front plate 8201a, and the vibration of the upper frame 8227 is transmitted to the upper portion of the front plate 8201a. This has two implications. The first meaning is to efficiently transmit the vibration of the ridge formed by the front plate 8201a and the upper frame 8227 to the ear cartilage as described later. The second meaning is that a relatively large area of vibration on the upper part of the front plate 8201a generates an air conduction sound of a required level in a normal mobile phone without providing an air-conducting receiver such as a speaker. That's why.

  The piezoelectric bimorph element 52025 serving as a vibration source in the embodiment 149 is small and thin in the same manner as the embodiment 145 of FIG. 231 and is directly attached to the inner surface of the upper frame 8227. The vibration direction is perpendicular to the upper surface. With this configuration, in the embodiment 149, the inner camera and the infrared light proximity sensor are arranged at the upper center of the mobile phone.

  The perspective view of FIG. 236 (A) shows the above structure, and it can be seen that the upper frame 8227 is in direct contact with the front plate 8201a. Thus, the vibration of the upper frame 8227 is transmitted to the upper part of the front plate 8201a. In addition, in the center of the upper part of the front plate 8201a, an inside camera 55017 which can photograph the face of the operator who is looking at the display portion 8205 during a videophone call and is also used for self-photographing is arranged. I have. By arranging the inner camera 55017 in the upper center of the front slab 8201a in this manner, it is possible to photograph the face of the user from the front. The inner camera is arranged such that the piezoelectric bimorph element 52025, which is a vibration source, is small and thin and is directly attached to the inner surface of the upper frame 8227 without arranging a speaker as in a normal mobile phone. It becomes possible by securing a space inside the upper part of 55001.

  Further, a proximity sensor unit including an infrared light emitting section 55020 and an infrared light proximity sensor 55021 is further provided at the upper center of the front plate 8201a. This is for detecting that the mobile phone 55001 is in contact with the ear. By arranging the proximity sensor unit in the upper center of the front plate 8201a in this way, the right corner 8224 is moved to the right ear. The contact can be reliably detected regardless of whether it is applied to the cartilage or the left corner 8226 to the left ear. By this detection, for example, the backlight of the display unit 8205 is turned off and the function of the touch panel is performed. Can be turned off. This proximity sensor unit also has a structure in which a speaker such as a normal mobile phone is not provided, and the piezoelectric bimorph element 52025 serving as a vibration source is small and thin and is directly attached to the inner surface of the upper frame 8227. It becomes possible by securing a space inside the upper part of 55001.

  As apparent from FIG. 236 (B) which is a cross-sectional view taken along the line B1-B1 of FIG. 236 (A), the small-sized piezoelectric bimorph element 52025 is directly attached to the inner side surface of the upper frame 8227. As shown by the broken line, the inner camera 55017 has a space secured by directly attaching a small and thin piezoelectric bimorph element 52025 to the inner side surface of the upper frame 8227 without a speaker as in a normal mobile phone. Are located in The proximity sensor unit is also arranged in the central space secured as described above, but is not shown to avoid complication. Note that the vibration direction of the piezoelectric bimorph element 52025 is perpendicular to the upper surface of the mobile phone 55001 as indicated by an arrow 52025a.

  In FIG. 236 (C) which is a top view, it can be seen that the upper frame 8227 and the front plate 8201a are in direct contact with each other without the elastic body 52065. Also in FIG. 236 (D), which is a cross-sectional view taken along the line B2-B2 of FIG. 236 (A) or FIG. It can be seen that the inner camera 55017 is arranged in the centered space. Further, in FIG. 236 (E), which is a left side view of FIG. 236 (A), it can be seen that the left corner 8226 of the upper frame 8227 and the front plate 8201a are in direct contact.

  Since the embodiment 149 is configured as described above, the vibration of the piezoelectric bimorph element 52025 perpendicular to the upper surface of the mobile phone 55001 is transmitted to the entire upper frame 8227 and, as described in the previous embodiments, the right corner. Applying the 8224 to the vicinity of the tragus of the right ear cartilage or the left corner 8226 to the vicinity of the tragus of the left ear can provide comfortable and efficient cartilage conduction fitted to the shape of the ear. Also, since the front edge of the mobile phone formed by the front plate 8201a and the upper frame 8227 also vibrates well, it is necessary to apply a method in which the central part of the mobile phone 55001 comes in front of the ear canal like a conventional mobile phone. Even so, good cartilage conduction from the ridge line to the pinna can be obtained. Further, the air conduction sound generated by the vibration of the upper part of the front plate 8201a also enters the ear canal. The air conduction sound has an air conduction volume that satisfies a normal mobile phone speaker standard. In addition, even when the ridgeline portion in front of the upper part of the mobile phone is applied to the pinna, the effect of closing the ear canal can be obtained by the usage described below.

  Note that the volume can be adjusted by GUI using the touch panel function of the large screen display portion 8205 in the embodiment 149. Specifically, a volume adjustment mode is set by touch panel operation, and the volume can be adjusted by touching a plus or minus operation unit of the displayed volume operation. By adjusting the volume by such touch panel operation, the volume can be increased from the front plate 8201a to a volume at which an air conduction sound satisfying the measurement standard of the normal speaker can be generated. On the other hand, when the mobile phone 55001 of the embodiment 149 is used by cartilage conduction, the volume is reduced to a state where only air conduction sound lower than the measurement reference in the normal speaker is generated. The mobile phone 55001 of the embodiment 149 can adjust the volume over such both areas.

  More specifically, the cellular phone 55001 may change the magnitude of the vibration for cartilage conduction by the piezoelectric bimorph element 52025 by at least the first magnitude (stronger vibration) and the second magnitude by the volume adjustment operation as described above. Is adjustable between the magnitudes (weaker vibrations). Further, due to the vibration transmitted from the upper frame 8227 to which the piezoelectric bimorph element 52025 is attached to the front plate 8201a, an airway sound whose volume changes from the upper part of the front plate 8201a according to the magnitude of the vibration of the piezoelectric bimorph element 52025 is generated. The magnitude of the first vibration in the above is usually a measurement method in accordance with the standard of a mobile phone (a measurement method of measuring the volume of airway sound picked up by a predetermined microphone at a predetermined distance from a portion where the mobile phone is put on the ear). Therefore, it is enough to generate the airway sound required in the case of measuring the airway sound at a predetermined distance from the speaker from the upper part of the front plate 8201a. In addition, the magnitude of the second vibration in the above is such that only the airway sound less than the volume required by the measurement method in accordance with the standard of the mobile phone is generated from the upper part of the front plate 8201a, and the mobile phone 55001 is used. The sound pressure in the ear canal measured 1 cm deep from the ear canal entrance with the upper part of the mobile phone in contact with the ear cartilage caused the upper part of the mobile phone 55001 to approach the ear canal inlet without contact at the magnitude of the first vibration Similarly, the sound pressure in the ear canal becomes larger than the sound pressure in the ear canal measured 1 cm behind the entrance of the ear canal. This is due to the effect of cartilage conduction.

  FIG. 237 shows the usage in cartilage conduction in Example 149 of FIG. 236, and is a schematic view of the side of the ear and the top of the head. FIG. 237 (A) shows a listening form in which the right corner 8224 similar to the other embodiments is applied to the otocartilage near the tragus 32, and the corner of the mobile phone is fitted to the shape of the ear. According to this usage, the tragus closes the external auditory canal by a natural operation of increasing the pressing force to the ear in order to hear the sound well under the noise, and the external ear canal can increase the sound and cut off the external sound by the external auditory canal closing effect.

  On the other hand, FIG. 237 (B) shows a case in which the mobile phone is placed on the ear in a state in which the face is facing the front, the mobile phone is set to be substantially horizontal horizontally, and the center of the ridge portion at the upper front of the mobile phone is eared from the front of the right ear. The usage method applied to the base of the bead 32 (the front edge of the entrance of the ear canal) is shown. Note that the use state in FIG. 237 (B) is such that, when the mobile phone is put on the ear with the prone face down as often seen in a normal call scene, the mobile phone is held in the right hand and naturally tilted, Suitable use becomes possible. If the central part of the mobile phone is applied to the ear by using the usage method as shown in FIG. 237 (B), the ear is not covered with the mobile phone, so the pinna is not crushed, and the central part of the ridge line is connected to the ear canal entrance. Of the anterior edge of the cartilage (the base of the tragus). Further, the display screen is not stained by contact with the pinna or the cheek. The position of the mobile phone 55001a shown by a dashed line in FIG. 237 (B) is in this state. When external noise is loud in such a use state, if the mobile phone is pressed slightly backward, the tragus is pushed and bent, and the ear canal is closed, so that the effect of closing the ear canal can be obtained. The position of the mobile phone 55001b shown by a broken line in FIG. 237 (B) shows this state, and the effect of closing the ear canal can be obtained without crushing the pinna.

  On the other hand, FIG. 237 (C) is a schematic diagram of the head viewed from above, and shows a state corresponding to the position of the mobile phone 55001a in FIG. 237 (B). It can be seen that the mobile phone 55001a is applied to the base of the tragus 32. FIG. 237 (D) shows a state corresponding to the position of the mobile phone 55001b in FIG. 237 (B). It can be seen that the mobile phone 55001a is pressed rearward, the tragus 32 bends rearward, and the ear canal is closed. As described above, according to Example 149, cartilage conduction listening and external auditory canal closure were performed in a manner similar to that of a conventional mobile phone (a more comfortable way to cover the pinna and not crush it). The cartilage conduction hearing with the effect becomes possible.

  FIG. 238 is a perspective view of the mobile phone showing an example of the description of the usage of the mobile phone in the embodiment 149 shown in FIG. 237. FIG. 238 (A) illustrates the hearing of the right ear by the corners shown in FIG. 237 (A), and is similar to FIG. 150 (C) relating to Example 97. Specifically, the large-screen display unit 8205 graphically indicates the right-side corner 8224 and provides a guidance display that "you can hear this corner hitting the right ear hole". Along with the display, a similar voice guidance may be provided by a videophone speaker. Similarly, FIG. 238 (B) explains the left ear listening by the corner, and the graphic display on the large screen display unit 8205 points to the left corner 8226 and “If this corner hits the hole of the right ear, it is heard. ". Voice guidance may be accompanied as in the case of guidance for the right ear. Switching between FIGS. 237 (A) and (B) is performed automatically by detecting the inclination of the mobile phone, similarly to the switching between FIGS.

  On the other hand, FIG. 238 (C) describes the listening at the center of the upper ridge line shown in FIG. 237 (B). Specifically, the large-screen display unit 8205 provides a graphic display to indicate the center of the upper part of the mobile phone, and provides a display guidance that "it can be heard even if the upper end is placed in front of the ear hole from the front". At this time, a unique feature of the present invention is added that "it can be heard without covering the ears". In the same manner as in FIGS. 238 (A) and (B), similar voice guidance may be provided by a videophone speaker together with the display.

  FIG. 238 (D) is activated automatically when the noise is loud, and is alternately displayed at intervals of 3 seconds with the display of FIG. 238 (C). The content is indicated by a graphic display that indicates the direction in which the button is pressed, and in the case of noise, pressing a little further backwards will close the ear hole and increase the sound. The outside sound will not enter. .

  In the case where the usage is described by a graphic display on the large screen display unit 8205 as shown in FIG. 238, not only the description in characters but also a schematic diagram of the usage as shown in FIG. Can be further deepened.

  FIG. 239 is a perspective view, a cross-sectional view, and a top view of Example 150 according to the embodiment of the present invention, which is configured as a mobile phone 56001. The embodiment 150 has many points in common with the embodiment 149 of FIG. 236. Therefore, the corresponding portions are denoted by the same reference numerals and the description thereof will be omitted unless necessary. The embodiment 150 of FIG. 239 differs from the embodiment 149 of FIG. 236 mainly in the housing structure.

  More specifically, the housing of the mobile phone 56001 includes a box-shaped case portion 56227 that is open forward, and a front plate 56201 that is fitted in and covers the front. The piezoelectric bimorph element serving as a vibration source is attached to the inner side of the upper surface of the case portion 56227 in the same manner as in Example 149. It propagates to the top of 56201. Thus, in the same manner as in Example 149, the vibration of the ridge formed by the front plate 56201 and the upper portion of the case portion 56227 is efficiently transmitted to the ear cartilage. In addition, even without providing an air-conducting reception unit such as a speaker, a relatively large area of vibration on the upper part of the front slab 56201 causes a normal level of air-conducting sound to be generated in the mobile phone.

  In Example 150, as in Example 149, the piezoelectric bimorph element 52025 serving as a vibration source is small and thin, and is directly attached to the inside of the upper surface of the case portion 56227 as described above. The vibration direction is also perpendicular to the upper surface as in the case of the embodiment 149. With this configuration, also in the embodiment 150, the inner camera and the infrared light proximity sensor can be arranged at the upper center of the mobile phone.

  The perspective view of FIG. 239 (A) shows the above structure, and it can be seen that the case portion 56227 is in direct contact with the front plate 56201. Thus, the vibration of the upper portion of the case portion 56227 is transmitted to the upper portion of the front plate 56201. A proximity sensor unit 56019 in which an infrared light emitting unit 56020 and an infrared light proximity sensor 56021 are unitized is further provided at the upper center of the front plate 56201. By arranging the proximity sensor unit 56019 in the upper center of the front plate 56201 in this manner, similarly to the embodiment 149, even when the right corner 8224 is applied to the right ear cartilage, the left corner 8226 is left. Even if it touches the ear, the contact can be reliably detected. This proximity sensor unit has a structure in which a speaker is not provided as in a normal mobile phone, and the piezoelectric bimorph element 52025 serving as a vibration source is small and thin, and is directly attached to the inside of the upper surface of the case portion 56227. This is made possible by securing a space inside the upper portion of 56001.

  An inner camera 56017 is arranged near the upper center of the front plate 56201. This allows the user to photograph his / her face from the front, almost in the same manner as the implementation 149. Regarding the arrangement of such an inner camera, a speaker such as an ordinary mobile phone is not arranged, and the piezoelectric bimorph element 52025 serving as a vibration source is small and thin, and is directly attached to the inside of the upper surface of the case portion 56227. This is possible by securing a space inside the upper part of the mobile phone 56001.

  As is clear from FIG. 239 (B), which is a cross-sectional view taken along the line B1-B1 of FIG. I have. As shown by the broken line, the proximity sensor unit 56019 was secured by directly attaching a small and thin piezoelectric bimorph element 52025 to the inside of the upper surface of the case portion 56227 without a speaker as in a normal mobile phone. It is located in the central space. Illustration of the inner camera arranged near the center is omitted to avoid complication. The vibration direction of the piezoelectric bimorph element 52025 is perpendicular to the upper surface of the mobile phone 56001 as shown in the arrow 52025a in the same manner as in the embodiment 149.

In FIG. 239 (C) which is a top view, it can be seen that the front plate 56201 is directly in contact with and fitted in front of the case portion 56227. Further, in FIG. 239 (D) which is a cross-sectional view taken along the line B2-B2 of FIG. 239 (A) or FIG. 239 (B), the front plate 56201 is in direct contact with the front of the case portion 56227, and It can be seen that the proximity sensor unit 56019 is arranged in the central space secured at the position (1).

  Since the embodiment 150 is configured as described above, in the same manner as the embodiment 149, the vibration of the piezoelectric bimorph element 52025 perpendicular to the upper surface of the mobile phone 56001 is transmitted to the entire upper portion of the case portion 56227. As described in the embodiments, the right and left corners 8224 are applied to the vicinity of the tragus of the right ear cartilage or the left corner 8226 to the vicinity of the tragus of the left ear, so that the cartilage is comfortable and efficient. Conduction can be obtained. Also, the front edge of the upper portion of the mobile phone formed by the front plate 56201 and the upper surface of the case portion 56227 vibrates well, so that the central portion of the upper portion of the mobile phone 56001 comes in front of the ear canal like a conventional mobile phone. However, good cartilage conduction from the ridge line to the auricle can be obtained. Further, the air conduction sound generated by the vibration of the upper part of the front plate 56201 also enters the ear canal. As in the case of the embodiment 149, this air conduction sound has an air conduction volume that satisfies a normal mobile phone speaker standard. Further, even when the ridgeline portion in front of the upper part of the mobile phone is applied to the auricle, the effect of closing the ear canal can be obtained by the use method as shown in FIG. In addition, also in the embodiment 150, a guidance display of the usage as shown in FIG. 238 can be performed.

  The implementation of the features of the present invention described above is not limited to the embodiment in the above embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. In addition, the features of the embodiments can be put into each other and exchanged. For example, the arrangement of the inner camera and the proximity sensor unit in the embodiments 149 and 150 is not specific to each embodiment, and any arrangement can be adopted in any embodiment. In order to utilize the space secured by not arranging ordinary speakers and other vibration sources on the front side of the mobile phone, various layouts of the inside camera, the proximity sensor unit, and other parts that are advantageous by arranging them in the center are required. Can be adopted.

  238 (C) and (D) or the illustrations shown in FIG. 237 are attached to the product in addition to the case of displaying on the display surface of the product itself as in the embodiment. The user can be instructed by various advertising media including an electronic manual available on an instruction manual, a product catalog, the Internet, or the like.

  237 (B) to (D) and FIGS. 238 (C) and (D) show a configuration in which a relatively large airway sound is also generated as in the case of the embodiment 149 and the embodiment 150. The present invention is not limited to the mobile phone, but is useful for a mobile phone configured to suppress the generation of airway sounds as in the embodiment 154 in FIG.

  FIG. 240 is a block diagram related to Example 151 according to the embodiment of the present invention, and is configured as a mobile phone 57001. The embodiment 151 in FIG. 240 has many points in common with the embodiment 4 shown in FIG. 8, and the corresponding parts are denoted by the same reference numerals and description thereof will be omitted unless necessary. It should be noted that a part necessary for the following description is that, in the embodiment 151, the mobile phone is provided by the proximity sensor unit 56019 including the infrared light emitting units 19 and 20 and the infrared light proximity sensor 21 in the same manner as the embodiment 4. Is detected to be placed on the ear. In the embodiment 151, similarly to the embodiment 4, the pressing sensor 242 detects that the pressing force of the mobile phone is increased to the extent that the effect of closing the ear canal is generated. Further, in the embodiment 151, the operation unit 9 can be operated for volume adjustment and mode switching.

  The embodiment 151 of FIG. 240 has a vibration source such as a piezoelectric bimorph element for cartilage conduction in the same manner as the embodiment 149 shown in FIG. 236 or the embodiment 150 shown in FIG. The vibration is transmitted to the upper frame including both corners for conduction, and the vibration is also transmitted to the front panel. The mobile phone is generally configured to generate a required level of air conduction sound by the vibration. Therefore, the following description of Example 151 is based on the configuration of FIG. 236 for Example 149 or the configuration of FIG. 239 for Example 150.

  Although the basic configuration of the embodiment 151 is as described above, the feature of the embodiment 151 is that, in the use of cartilage conduction, the relationship between conventionally known air conduction and bone conduction was particularly considered in terms of its vibration power. On the point. As described above, the working example 151 is configured so that the vibration source for cartilage conduction is also used for air conduction sound generation. An air conduction sound generation test in a normal mobile phone can be performed by adjusting the volume or changing the mode using the operation unit 9. An air-conducting sound generation test for a normal mobile phone is to place a microphone near the top of the mobile phone (usually where the speaker is located) in a non-contact state, and to determine whether the microphone can detect air-conducting sound of a predetermined size or more. Tested. In the embodiment 151, as described above, the volume can be increased by adjusting the volume by the operation unit 9 until an air-conducting sound of a predetermined volume is obtained by the test microphone. Alternatively, by switching from the use mode to the test mode by the operation unit 9, the volume is increased more than in the use mode so that a predetermined sound pressure can be obtained by the test microphone.

  In a normal mobile phone equipped with a speaker, since air conduction sound from the speaker reaches the eardrum and hears the sound, no inconvenience occurs between the test and the use. However, the sound heard in the use state of the embodiment 151 mainly comes from cartilage conduction. In other words, when the upper part of the mobile phone is brought into contact with the ear in the use state of Example 151, cartilage conduction occurs, and the sound pressure near the eardrum of the human body is significantly higher than the sound pressure detected by the microphone in the non-contact state in the test state. To increase. This sound pressure is excessively large than the volume set assuming comfortable cartilage conduction, and may surprise or distress the user. Further, when the pressure at which the mobile phone is brought into contact with the ear is increased and the ear canal is closed, the sound pressure further increases, so that the vibration power set in the test state may be excessive.

  Example 151 is configured in view of the above, and the vibration source for cartilage conduction is also used for generating air-conducted sound, and the volume can be adjusted. It is configured so as not to be caused. The direct purpose of the suppression is to suppress the maximum value of the sound pressure in the external auditory canal to a predetermined value or less while cartilage conduction is occurring. The sound pressure in the external auditory canal only by the air conduction sound in the contact state is suppressed to be equal to or less than a predetermined value. In other words, the sound pressure in the non-contact state is suppressed in anticipation of the average increase in the sound pressure in the contact state. Further, the cartilage conduction in the state where the ear canal is open, and the cartilage conduction in the state where the sound pressure further increases from this state in the closed ear canal are suppressed by different standards. The necessity of the suppression and the selection of the suppression are determined by the presence or absence of the test setting, the set volume, the detection by the proximity sensor unit 56019, and the detection by the pressure sensor 242.

  Explaining Example 151 in detail with reference to FIG. 240, the cartilage conduction vibration unit 57228 which is also used as a vibration source of air conduction sound generation is driven by a drive signal from the phase adjustment mixer unit 236. In addition, a vibration limiting unit 57040 is provided between the phase adjustment mixer unit 236 and the cartilage conduction vibration unit 57228. Then, the vibration limiting unit 57040 limits the drive signal when the volume setting remains such that the sound pressure becomes excessive when cartilage conduction occurs, thereby suppressing vibration.

  The vibration limiter has an upper limit determiner 57039, and automatically determines whether or not the sound volume is set so that the sound pressure becomes excessive when cartilage conduction occurs. If applicable, the variable attenuator 57037 is operated to automatically suppress the vibration of the cartilage conduction vibration unit 57228. Since the mobile phone 57001 of the embodiment 151 is assumed to be used for cartilage conduction, the state in which the upper limit determination unit 57039 and the variable attenuator 57037 automatically function as described above is set as the standard state. Note that the determination level of the upper limit determination unit 57039 is set lower than when the pressing sensor 242 detects that the pressing force of the mobile phone has increased to the extent that the effect of closing the ear canal is generated.

  In the example 151, the air conduction sound test mode can be further set. When the test mode is set, the maximum volume of the air conduction sound is generated by operating the operation unit 9 (if cartilage conduction occurs, the internal auditory canal is (The volume at which the sound pressure may become excessively high). This volume setting may be configured to be performed as part of the volume adjustment operation as described above, or may be configured to automatically switch to the maximum volume by switching to the test mode. Then, when the test mode is set, the automatic functions of the upper limit determination unit 57039 and the variable attenuator 57037 are turned off. On the other hand, when the test mode is canceled, the automatic functions of the upper limit determination unit 57039 and the variable attenuator 57037 are restored.

  In the embodiment 151, even when the test mode as described above is not released, when the proximity sensor unit 56019 detects that the mobile phone is put on the ear, the mobile phone is kept in contact with the ear. The automatic functions of the upper limit determination unit 57039 and the variable attenuator 57037 are restored. Therefore, even if the sound volume in the external auditory canal becomes excessive when the sound pressure increase due to the cartilage conduction in the test mode setting is considered by the operation unit 9, even if the mobile phone is set to the ear, When it is applied, an excessive output is automatically suppressed by the upper limit determination unit 57039 and the variable attenuator 57037.

  The vibration limiter 57040 further includes a variable equalizer 57038. The increase in the sound pressure in the external auditory canal due to cartilage conduction has wavelength dependency as shown in FIG. The tendency is that the increase in sound pressure due to cartilage conduction is larger in the low frequency range than in the high frequency range. The variable equalizer 57038 sets equalization suitable for cartilage conduction as a standard state, but can be switched to equalization suitable for air conduction sound generation by manually setting the air conduction sound test mode. When the proximity sensor unit 56019 detects that the mobile phone has been put on the ear while the test mode is not canceled and the test equalization suitable for generating the air conduction sound is being performed, the high frequency It is automatically changed to the equalization in the standard use condition that suppresses the sound pressure in the low frequency range more than the suppression of the sound pressure in the range. Further, the variable equalizer 57038 increases the pressing force of the mobile phone when the proximity sensor unit 56019 detects that the mobile phone has been placed on the ear in the ear canal opening state and when the pressing sensor 242 causes the ear canal closing effect to occur. Automatic switching is performed so as to suppress the sound pressure in the high frequency range and the sound pressure in the low frequency range with different frequency characteristics.

  As described above, the relationship between the air conduction and the cartilage conduction has been described in the embodiment 151. Next, the relationship between the bone conduction and the cartilage conduction will be described. As is well known, the vibration power required to vibrate the skull from outside the human body in order to hear sound by bone conduction is extremely large. On the other hand, the vibration power required for the cartilage conduction vibration source of Example 151 is extremely small. As an example, in Example 151, the maximum vibration power assuming cartilage conduction in the ear canal open state is set, and the cartilage conduction part (the right corner 8224 or the left corner in FIG. 236 of Example 149 incorporated by Example 151) 8226) was pressed against a general mastoid as a bone conduction contact site. However, this operation is performed with care so that contact with the ear cartilage does not occur. At this time, even if the cartilage conduction part is pressed with a strong contact pressure as required for normal bone conduction, a sound volume at which conversation content can be heard is not obtained. This shows that the cartilage conduction part of Example 151 does not function as a bone conduction part.

  When the maximum vibration power is set assuming cartilage conduction with the ear canal closed, the vibration power of the vibration source can be further reduced. It is even more difficult to hear the sound when trying to get

  As described above, the cartilage conduction part in the mobile phone of the present invention configured based on cartilage conduction has a different configuration from the bone conduction contact part in bone conduction, and the power of the vibration source is also obviously different.

  FIG. 241 is a flowchart of the operation of the application processor 57039 in the embodiment 151 of FIG. 240. Note that the flow of FIG. 241 mainly illustrates related functions in order to mainly explain control for suppressing the generation of an excessive sound pressure in the external auditory canal. Accordingly, there are also operations of the application processor 57039 not shown in the flow of FIG. 241 such as functions of a general mobile phone. The flow in FIG. 241 starts when the main power supply of the mobile phone is turned on, and in step S972, the variable attenuator 57037 is turned on as a standard state. Next, similarly as a standard state, in step S974, the upper limit determination unit 57039 is turned on at the normal determination level (a level that is excessive in cartilage conduction in the open ear canal state), and in step S976, the variable equalizer 57038 is set to open cartilage conduction in the external ear canal. The state is set to a suitable state, and the process proceeds to step S978.

  In step S978, it is checked whether or not the pressure sensor 242 detects the ear canal closed state. If the ear canal closed state is detected, the process proceeds to step S980 to shift the upper limit determination level downward, and excessive cartilage conduction in the ear canal closed state is performed. Set to the level where Further, in step S982, the variable equalizer 57038 is set to a state suitable for the conduction of the closed ear canal cartilage, and the flow advances to step S984. On the other hand, if the pressing sensor 242 does not detect the ear canal closing state in step S978, the process proceeds to 986 to set the upper limit determination level to the normal level, and sets the variable equalizer 57038 in step S988 to a state suitable for open ear canal cartilage conduction. Proceed to step S984. Steps S980, S982, S986, and S988 do nothing when each step is reached in the original state.

  In step S984, the upper limit determination unit 57039 checks whether the output exceeds the upper limit. If the upper limit is exceeded, the process proceeds to step S990, where the output is attenuated to the upper limit by the variable attenuator 57037, and the process proceeds to step S992. On the other hand, if it is not detected in step S984 that the output exceeds the upper limit, the flow advances to step S994 to drive the cartilage conduction vibration unit 57228 with the original output without performing attenuation by the variable attenuator 57037. To step S992.

  In step S992, it is checked whether the test mode has been set on the operation unit 9. It should be noted that the test mode is also set when a loudness equal to or greater than a predetermined value is set on the operation unit 9. If the test mode setting is detected in step S992, the process advances to step S996, and the proximity sensor unit 996 checks whether the mobile phone 57001 has been brought into contact with the ear. If no ear contact is detected, it is regarded as a test state, and the flow advances to step S998 to turn off the upper limit determination unit 57037. Next, in step S1000, the variable attenuator is turned off, and in step S1002, the variable equalizer 57038 is set to a state suitable for generating airway sounds, and the flow returns to step S992. Hereinafter, steps S992 to S1002 are repeated until the test mode setting release is detected in step S992 or the proximity sensor does not detect the ear contact in step S996, and the test state is continued.

  On the other hand, in step S992, when the release of the test mode setting is detected, or when the ear contact is detected in step S996, the process proceeds to step S1004, and it is checked whether the main power is off. If the main power supply is not detected to be turned off in step S1004, the flow returns to step S972. Unless the main power supply is detected to be off in step S1004, steps S972 to S1004 are repeated to deal with various state changes.

  When the process exits the loop from step S992 to step S1002 for executing the test mode and returns to step S972 via step S1004, the function of the vibration limiting unit 57040 is restored from step S972 to step S976. At this time, when step S1004 is reached by detecting the cancellation of the test mode in step S992, the flow returns to the normal mode. On the other hand, if the flow reaches step S1004 due to ear contact in step S996 without canceling the test mode, the flow proceeds to step S992 to enter the flow of the test mode. However, at this time, if it is detected in step S996 that the contact of the ear continues, the process returns to step S972 again, so that the function of the vibration limiter 57040 is maintained. On the other hand, when it is detected in step S996 that the ear contact has been lost, the process proceeds to step S998, and the test mode is restored.

  FIG. 242 is a perspective view and a cross-sectional view of Example 152 according to an embodiment of the present invention, and are configured as a mobile phone 58001. In Example 152, most of the front surface is configured as a liquid crystal display 58205 having a touch panel function. On the premise of such a configuration, the upper side and both upper corners of the mobile phone are used as cartilage conduction portions, and the surface of the liquid crystal display 58205 is viewed from the surface. This suppresses the generation of air conduction sounds. As the remaining configuration, the configuration described in the other embodiments can be adopted, so that illustration and description are omitted for simplicity.

  FIG. 242 (A) is a perspective view of the mobile phone 58001 of the embodiment 152 as viewed from the front. Most of the front of the mobile phone 58001 is a liquid crystal display 58205 having a touch panel function. In particular, the upper part has an area close to the upper and side frame parts. FIG. 242 (B) is a cross-sectional view of the mobile phone 4201 cut along a plane perpendicular to the front surface and the side surface along a B1-B1 cut surface in FIG. 242 (A). As will be described later, the piezoelectric bimorph element 58025 is attached to the back side of the center of the upper frame, so that it is not at the position of the cross section. However, the broken line 58025 shows the see-through positional relationship when the mobile phone 58001 is viewed from above.

  An elastic body 58065 serving as a vibration absorbing material is interposed between the liquid crystal display 58205 and the frame on the side surface of the housing of the mobile phone 58001, and the vibration of the upper frame to which the piezoelectric bimorph element 58025 is attached is transmitted to the liquid crystal display 58205. It is becoming difficult. Further, a vibration suppression extension 58025a is integrally provided on the upper rear side of the liquid crystal display 58205, and a weight 58048 is fixed to the vibration suppression extension 58025a so as not to touch other components inside the mobile phone 58001. ing. Thereby, the slight vibration transmitted from the upper frame portion to the liquid crystal display 58205 is further suppressed. It is sufficient that the weight 58048 does not rigidly touch other components inside the mobile phone 58001. For example, the weight 58048 may be connected to another structure with a flexible material such as a flexible substrate that is difficult to transmit vibration.

  FIG. 242 (C), which is a cross-sectional view taken along line B2-B2 of FIG. 242 (A), shows that the piezoelectric bimorph element 58025 is attached to the back side of the upper frame portion of the housing of the mobile phone 58001. Further, an elastic body 58065 serving as a vibration absorbing material is interposed also between the liquid crystal display 58205 and the housing frame portion and the lower portion of the housing front of the mobile phone 58001, and the vibration of the upper frame portion to which the piezoelectric bimorph element 58025 is attached is attached. Are difficult to be transmitted to the liquid crystal display 58205. As described above, the elastic body 58065 is interposed all around the liquid crystal display 58205, so that vibration from the frame portion of the housing of the mobile phone 58001 is not easily transmitted to the liquid crystal display 58205.

  FIG. 243 is a perspective view and a sectional view of Example 153 according to the embodiment of the present invention, which are configured as a mobile phone 59001. The embodiment 153 has many points in common with the embodiment 152 in FIG. 242, and thus the same portions are denoted by the same reference numerals and description thereof will be omitted.

  The first difference between the embodiment 243 and the embodiment 242 is that a piezoelectric bimorph holder 59001a is provided at the center on the back side of the upper frame portion of the mobile phone 59001, and the vibration direction of the piezoelectric bimorph element 59025 is perpendicular to the liquid crystal display 58205. This is the point that the piezoelectric bimorph holder 59001a is held.

  The second difference between the embodiment 243 and the embodiment 242 is that the vibration suppressing structure of the liquid crystal display 58205 includes a vibration suppressing extending portion 58025b integrally provided on the upper rear side of the liquid crystal display 58205 such as a battery inside the mobile phone. This is the point connected to the weight portion 59048. Thereby, the slight vibration transmitted from the upper frame portion to the liquid crystal display 58205 is further suppressed.

  FIG. 244 is a perspective view and a cross-sectional view of Example 154 according to an embodiment of the present invention, and are configured as a mobile phone 60001. Since the embodiment 154 has many portions in common with the embodiment 152 in FIG. 242 or the embodiment 153 in FIG. 243, the same portions are denoted by the same reference numerals and description thereof will be omitted.

  The first difference of the embodiment 244 from the embodiment 242 or the embodiment 243 is that an inclined piezoelectric bimorph holder 60001a is provided at the center of the upper side of the upper side frame portion of the mobile phone 59001, and the piezoelectric bimorph element 60025 has a vibration direction. The liquid crystal display 58205 and the upper frame portion of the mobile phone 6001 are held by the piezoelectric bimorph holder 60001a so as to be inclined (for example, 45 degrees to both).

  A second difference between the embodiment 244 and the embodiment 242 or the embodiment 243 is that a vibration suppressing structure of the liquid crystal display 58205 and a vibration suppressing extension 58025c integrally provided on the upper rear side of the liquid crystal display 58205 and the mobile phone are provided. The point is that the vibration absorbing elastic body is sandwiched between the inside of the back wall 6001. Thereby, the slight vibration transmitted from the upper frame portion to the liquid crystal display 58205 is further suppressed.

  The combination of the mounting structure of the piezoelectric bimorph element to the back side of the upper side frame and the vibration suppressing structure of the liquid crystal display 58205 in Embodiments 242 to 244 are not specific to each embodiment, and can be freely combined with each other. . For example, it is possible to employ the piezoelectric bimorph mounting structure of the embodiment 242 and the vibration suppressing structure of the liquid crystal display 58205 of the embodiment 243.

  Further, the implementation of the features of the present invention described above is not limited to the embodiment in the above-described embodiment, but can be implemented in other embodiments as long as the advantages can be enjoyed. In addition, the features of the embodiments can be put into each other and exchanged. For example, for the proximity sensor unit of the embodiment 151, an arrangement like the proximity sensor unit 56019 of FIG. 239 can be adopted. The pressure sensor 242 used in the embodiment 151 can also serve as the cartilage conduction vibration source 225 composed of a piezoelectric bimorph element as described in the embodiment 4 with reference to FIG. 9, but a dedicated pressure sensor is provided. This can be used for detecting the pressing force. Further, the volume control of the embodiment 151 can be configured to be performed by a GUI or the like using the touch panel function of the large screen display unit in the same manner as the embodiment 149 of FIG. 236.

  Note that the embodiment 151 is configured as a mobile phone capable of listening by cartilage conduction and capable of generating a required level of air conduction sound in a normal mobile phone. However, even in a mobile phone having a structure that suppresses the generation of air conduction sound as in the other embodiments, an excessive increase in sound pressure due to the occurrence of cartilage conduction due to contact or an excessive increase in sound pressure due to the effect of closing the ear canal is considered. It is useful to apply the features of the embodiment 151 described above. In particular, in a mobile phone having a structure in which generation of air conduction sound is ideally suppressed, the contribution of cartilage air conduction sound when cartilage conduction occurs is greater than direct air conduction sound (depending on individual differences, Due to the change in state from non-contact to contact, the maximum sound pressure in the ear canal can be increased up to 30d at the average of the conversation area below 3000Hz and up to 50dB at 500Hz). It is useful to suppress the sound pressure in the external auditory canal from being excessive when cartilage conduction occurs.

  Further, in Embodiments 242 to 244, in the case where air conduction sound is generated without suppressing vibration of the liquid crystal display 58205 in the same manner as in Embodiments 149 to 151, the housing portion of the mobile phone 58001 is used. The elastic body 58065 is not provided between the liquid crystal display 58205 and the vibration suppressing structure via the vibration suppressing extension portions 58025a, 58025b, and 58025c is omitted.

  FIG. 245 is a perspective view and a cross-sectional view of Example 155 according to the embodiment of the present invention, which are configured as a mobile phone 61001. The embodiment 155 has many points in common with the embodiment 152 in FIG. 242, and therefore, the same portions are denoted by the same reference numerals and description thereof will be omitted.

  The embodiment 155 in FIG. 245 differs from the embodiment 152 in FIG. 242 in the structure for suppressing the air conduction sound. FIG. 245 (A) is a perspective view of the mobile phone 61001 of the embodiment 155 as viewed from the front. Similar to the embodiment 152 of FIG. 242, most of the front of the mobile phone 61001 has a liquid crystal display 58205 having a touch panel function. Has become. As is clear from FIG. 245 (A), the housing of the mobile phone 61001 according to the embodiment 155 includes a front plate 61201a and a rear plate (not shown in FIG. 245 (A)), an upper frame 61227, a right frame 61201c, and the like. It is configured to sandwich an integrated frame made of At this time, an elastic packing ring 61065a serving as a vibration absorbing material is interposed between the front plate 61201a and the integrated frame, and an elastic packing serving as a vibration absorbing material is similarly provided between the integrated frame and the back plate. A body packing ring 61065b is interposed. Thereby, the vibration of the piezoelectric bimorph element 58025 attached to the upper frame 61227 is reduced from being transmitted to the front plate 61201a and the rear plate, and the vibration of the upper frame 61227 causes both corners of the mobile phone 61001 to have a good cartilage conduction part. Become.

  FIG. 245 (B) is a cross-sectional view of the mobile phone 61001 cut along a plane perpendicular to the front and side surfaces along a B1-B1 cut surface of FIG. 245 (A). As described above, the piezoelectric bimorph element 61025 is affixed to the rear side of the center of the upper frame 61227, and thus is not located at the cross-sectional position. However, the broken line 61025 shows the see-through positional relationship when the mobile phone 61001 is viewed from above. Note that the vibration direction of the piezoelectric bimorph element 61025 is perpendicular to the surface of the upper frame 61227 (that is, the vertical direction of the mobile phone 61001).

  As is clear from FIG. 245 (B), an elastic packing ring 61065a serving as a vibration absorbing material is interposed between the front plate 61201a and the right frame 61201c and the left frame 61201e of the integrated frame. Further, an elastic packing ring 61065b serving as a vibration absorbing material is interposed between the back plate 61201b and the right frame 61201c and the left frame 61201e of the integrated frame. Further, a coupling structure 61406 is provided between the front plate 61201a and the back plate 61201 so as to sandwich the integrated frame between the two.

  In FIG. 245 (C), which is a B2-B2 cross-sectional view shown in FIG. 245 (A), an elastic packing ring 61065a serving as a vibration absorbing material is provided between the front plate 61201a and the upper frame 61201c and the lower frame 61201d in the integrated frame. It turns out that it is interposed. In addition, it can be seen that an elastic packing ring 61065b serving as a vibration absorbing material is interposed between the back plate 61201b and the upper frame 61227 and the lower frame 61201d of the integrated frame. Further, a coupling structure 61406 for sandwiching the integrated frame between the front plate 61201a and the back plate 61201 is also illustrated. A plurality of such coupling structures 61406 are provided anywhere between the front plate 61201a and the back plate 61201, and FIG. 245 shows only a part of them to avoid complexity.

  As can be seen from FIG. 245 (C), the liquid crystal display 58205 is mounted on the structure of the front plate 61201a, and the internal structure 61048a of the mobile phone 61001 is also mounted on the structure of the front plate 61201a. The internal structure 61048b of the mobile phone 61001 is mounted on the structure of the back plate 61201b. The weight of the internal structure 61048a mounted on the front plate 61201a and the weight of the internal structure 61048b mounted on the back plate 61201b suppress the vibration of the front plate 61201a and the back plate 61201b, respectively, due to their inertia.

  FIG. 246 is an enlarged detailed cross-sectional view of a main part of FIG. 245 (C) relating to Example 155. The same portions as those in FIG. 245 (C) are denoted by the same reference numerals, and description thereof will be omitted unless necessary. As apparent from FIG. 246, the front plate 61201a and the elastic packing ring 61065a, and the elastic packing ring 61065a and the upper frame 61227 have a fitting structure. On the other hand, the fitting structure is formed between the upper frame 61227 and the elastic packing ring 61065b, and between the elastic packing ring 61065b and the back structure 61202 which forms a part of the back plate. In assembling, the elastic packing ring 61065a is fitted into the front plate 61201a on which the liquid crystal display 58205 is mounted, and then the integrated frame and the elastic packing ring 61065b are fitted sequentially. Then, the back structure 61202 is further fixed to the front plate 61201a by screws 61406 which are fitted into the integrated frame and the elastic packing ring 61065b to form a connection structure. As a result, the front frame 61206a, the integrated frame including the upper frame 61227, and the rear structure 61201a are joined.

  The back plate 61201b has a three-layer structure including the back structure 61202, the back cover 61203, and the back structure 61202. Most of the rear structure 61202 is an opening 61202a, and the mounting operation of the internal structure 61048a is possible even after the rear structure 61202 is attached. The internal structure 61048b is mounted on the rear structure 61202 in advance before the rear structure 61202 is joined to the front plate 61206a. When the mounting of the internal structure is completed, the back cover 61203 is attached to the rear structure 61202 with the screws 61203a, and the manufacturing process ends. The back structure 61202 is fitted into the back cover portion 61203 by the claw portion 61204a, and can be detached by a purchased user for card exchange or the like.

  FIG. 247 is a perspective view and a cross-sectional view of Example 156 according to the embodiment of the present invention, which are configured as a mobile phone 62001. Since the embodiment 156 has many points in common with the embodiment 155 in FIG. 245, the same portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. The difference of the embodiment 156 in FIG. 247 from the embodiment 155 in FIG. 245 is the structure for suppressing the air conduction sound, so only the different parts will be described.

  As is clear from FIG. 247 (A), the integrated frame of the embodiment 156 is covered with the elastic covering portion 62065c. 247 (B) showing a cross section taken along line B1-B1 of FIG. 247 (A), both ends of the elastic body covering portion 62065c covering the right frame 62201c and the left frame portion 62201e. Each of the elastic packing ring portions 62065a and the elastic packing ring portion 62065b has an integral structure. In this embodiment 156 as well, in the same manner as in Embodiment 155, the vibration of the upper frame 62227 in the integrated frame is reduced by the front plate 61201a and the elastic packing ring portion 62065a and the elastic packing ring portion 62065b. Transmission to the back plate 61201b is reduced. In FIG. 247 (C), which is a cross-sectional view taken along line B2-B2 shown in FIG. 247 (A), both ends of the elastic covering portion 62065c have an integral structure continuous with the elastic packing ring portion 62065a and the elastic packing ring portion 62065b, respectively. It can be seen that the vibration of the upper frame 62227 to which the piezoelectric bimorph element 61025 is attached is reduced by the interposition of the body packing ring portion 62065a and the elastic body packing ring portion 62065b to the front plate 61201a and the back plate 61201b.

  FIG. 248 is a perspective view and a cross-sectional view of Example 157 according to the embodiment of the present invention, and are configured as a mobile phone 63001. The embodiment 157 has many points in common with the embodiment 156 in FIG. 247, and therefore, the same portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. The embodiment 157 in FIG. 248 differs from the embodiment 156 in FIG. 247 in that a pair of piezoelectric bimorph elements are provided at both corners of the mobile phone 63001 so that they can be controlled independently of each other.

  As is apparent from FIG. 248 (B) which shows a cross-sectional view taken along the line B1-B1 in the vicinity of the upper frame of FIG. 248 (A), the upper ends of the right frame 63201c and the left frame 63201e (both corners of the mobile phone 63001). ), And elastic support portions 63065d and 63065e, which extend from the elastic covering portion 63065c and penetrate through these openings, are fitted into the mobile phone 63001, respectively. The upper ends of the right-ear piezoelectric bimorph element 63025b and the left-ear piezoelectric bimorph element 63025a are supported by the elastic-body support portions 63065d and 63065d, respectively, inside the mobile phone 63001. Thereby, the vibrations of the piezoelectric bimorph elements 63025b and 63025a are favorably transmitted from the elastic body covering portion 63065c to the ear cartilage having a similar acoustic impedance, and the right frame 63201c and the left frame portion 63201e having different acoustic impedances. It is difficult to be transmitted, thereby further suppressing the generation of air conduction sound. Further, the piezoelectric bimorph elements 63025b and 63025a can be controlled independently. The vibration direction of the right ear piezoelectric bimorph element 63025b and the left ear piezoelectric bimorph element 63025a is perpendicular to the surface of the front plate 61201a (that is, the front-back direction of the mobile phone 63001).

  The configuration in which the right-ear piezoelectric bimorph element 63025b and the left-ear piezoelectric bimorph element 63025a are provided at both corners of the mobile phone so as to be independently controllable is common to the embodiment 52 of FIG. 77. Unlike the embodiment 52 in which one is arranged in the horizontal direction and the other is arranged in the vertical direction, the piezoelectric bimorph element for the right ear 63025b and the piezoelectric bimorph element for the left ear 63025a in the embodiment 157 of FIG. Both are supported in the vertical direction, and are arranged symmetrically to each other. It is common to the embodiment 52 of FIG. 77 that a signal whose phase is inverted is input to the piezoelectric bimorph element for right ear 63025b and the piezoelectric bimorph element for left ear 63025a to cancel the air conduction sound. However, in the embodiment 157 of FIG. 248, the mechanical structure for generating air-conducted sound is also symmetrical due to the left-right symmetrical arrangement of the piezoelectric bimorph element for left ear 63025a, which is suitable for air-conducted sound cancellation by phase inversion.

  FIG. 248 (C) shows a part of a cross-sectional view taken along line B2-B2 of FIG. 248 (A), and FIG. 247 in Example 156 except that the piezoelectric bimorph element is not arranged at the center of the upper frame 63227. (C) is common. On the other hand, FIG. 248 (D) shows a part of a B3-B3 cutaway view near the right frame of FIG. 248 (A). As is clear from FIG. 248 (D), an opening is provided at the right end of the upper frame 63227 (corresponding to the right corner of the mobile phone 63001), and penetrates through this opening to continue from the elastic covering portion 63065c. The elastic body support portion 630065d is fitted inside the mobile phone 63001. The upper end of the right ear piezoelectric bimorph element 63025b is supported by the elastic body supporting portion 63065d downward. The opening at the upper end of the right frame 63201c in FIG. 248 (B) and the opening at the right end of the upper frame 63227 in FIG. 248 (B) are one continuous opening provided at the corner, and The portion 63065d fits into the inside of the mobile phone 63001 at a corner from this one opening.Although only the right corner is shown in FIG.248 (D), the left ear piezoelectric bimorph element 63025a is shown. The left corner disposed has the same configuration, and thus the description is omitted.

  FIG. 249 is a perspective view and a cross-sectional view of Example 158 according to an embodiment of the present invention, and are configured as a mobile phone 64001. The embodiment 158 has many points in common with the embodiment 157 in FIG. 248, and thus the same portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. The embodiment 158 in FIG. 249 is different from the embodiment 157 in FIG. 248 in that the elastic support portion and the elastic packing ring portion that are fitted through the corner openings of the integrated frame to support the piezoelectric bimorph element are separate. The point is that.

  As is clear from FIG. 249 (A), in the embodiment 158, similarly to the embodiment 155 of FIG. 245, an elastic packing ring 64065a is interposed between the front plate 61201a and the integrated frame, and An elastic packing ring 61065b is interposed between the body frame and the back plate. The supporting portions 64065d and 64065e of the piezoelectric bimorph element are exposed at both upper corners of the mobile phone 64001 through the openings of the integrated frame. Note that elastic portions 64065f and the like serving as protectors for the corners are also provided at both lower corners of the mobile phone 64001. The lower corner protectors have the same configuration as that of the embodiment 46 of FIG.

  As is clear from FIG. 249 (B) which shows a cross-sectional view taken along the line B1-B1 in the vicinity of the upper frame of FIG. 249 (A), the right frame 64201c and the left frame portion 64201e penetrate through the openings at the upper ends. The elastic supporting portions 64065d and 6405e are separate from the elastic packing rings 64065a and 64065b, respectively.

  FIG. 249 (C) shows a part of a cross-sectional view taken along line B2-B2 of FIG. 249 (A), and FIG. 245 in Example 155 except that no piezoelectric bimorph element is arranged at the center of the upper frame 64227. (C) is common. On the other hand, FIG. 249 (D) shows a part of a B3-B3 cutaway view near the right frame of FIG. 249 (A). As is clear from FIG. 249 (D), the elastic supporting portion 64065d penetrating the opening at the right end of the upper frame 64227 is separate from the elastic packing rings 64065a and 64065b. This structure is the same in the left corner where the piezoelectric bimorph element 63025a is arranged.

  FIG. 250 is a perspective view and a cross-sectional view of Example 159 according to the embodiment of the present invention, which is configured as a mobile phone 65001. The embodiment 159 has many points in common with the embodiment 158 in FIG. 249, and thus the same portions are denoted by the same reference numerals and description thereof will be omitted unless necessary. The embodiment 159 in FIG. 250 differs from the embodiment 158 in FIG. 249 in that the elastic packing ring is omitted.

  As is clear from FIG. 250 (A), in the embodiment 159, as in the embodiment 158 of FIG. 249, the piezoelectric bimorph element is inserted through the opening of the integrated frame at both upper corners of the mobile phone 65001. The supporting portions 65065d and 64065e are exposed. Elastic body portions 65065f serving as protectors for the corners are also provided at both lower corners of the mobile phone 65001. However, the elastic packing ring as in the embodiment of FIG. 249 is not provided, and the integrated frame including the upper frame 65227 and the right frame 65201c is in direct contact with the front plate 61201a and the back plate 61201b.

  As is clear from FIG. 250 (B) which shows a cross-sectional view taken along the line B1-B1 in the vicinity of the upper side frame of FIG. 250 (A), the openings at the upper ends of the right frame 64201c and the left frame portion 64201e are Elastic support portions 64065d and 6405e penetrating therethrough are provided to support the right ear piezoelectric bimorph element 63025b and the left ear piezoelectric bimorph element 63025a, respectively. In the same manner as in the embodiment 157 of FIG. 248 and the embodiment 158 of FIG. 249, the vibrations of the piezoelectric bimorph elements 63025b and 63025a are transmitted well from the elastic body covering portion 63065c to the ear cartilage having similar acoustic impedance. It is difficult for the acoustic impedance to be transmitted to the right frame 65201c and the left frame 65201e having different acoustic impedances, thereby suppressing the generation of air conduction sound. In the example 159 in FIG. 250, the vibration component transmitted to the right frame 65201c and the left frame 65201e is also transmitted to the front plate 61201a and the back plate 61201b.

  FIG. 250C shows a part of a cross-sectional view taken along line B2-B2 of FIG. 250A. It can be seen that the upper frame 65227 is in direct contact with the front plate 61201a and the back plate 61201b. On the other hand, FIG. 250 (D) shows a part of a B3-B3 cutaway view near the right frame of FIG. 250 (A). FIG. 250 (D) also shows that the upper frame 65227 is in direct contact with the front plate 61201a and the back plate 61201b, but the piezoelectric support for right ear bimorph is provided by the elastic support portion 650065d penetrating the opening at the right end of the upper frame 65227. It can be seen that since the element 63025b is supported, it is difficult for vibration to be transmitted to the upper frame 65227 having a different acoustic impedance. This structure is the same in the left corner where the piezoelectric bimorph element 63025a is arranged.

  The implementation of the various features of the present invention is not limited to the above-described embodiment, but can be implemented in other embodiments. Further, the various features described above can be combined with each other or replaced with each other. For example, in the embodiment 159 of FIG. 250, since the integrated frame is in direct contact with the front plate and the back plate, the integrated frame portion is further replaced with the front plate instead of being implemented as separate components as in the embodiment. Alternatively, it is also possible to form a structure integral with one of the back plates. Further, in the embodiment 152 of FIG. 242 to the embodiment 159 of FIG. 250, the integrated frame is employed, but these may be divided into separate parts.

  Also, the method of supporting the piezoelectric bimorph element in the embodiment 155 of FIG. 245 to the embodiment 159 of FIG. 250 is not limited to the embodiment. For example, in the embodiment 157 of FIG. 248 to the embodiment 159 of FIG. Note that the vibration directions of the right ear piezoelectric bimorph element 63025b and the left ear piezoelectric bimorph element 63025a are perpendicular to the surface of the upper frame 63227 and the like (that is, of the mobile phone 61001) in the same manner as in the embodiment 155 of FIG. (Vertical direction). Conversely, the vibration direction of the piezoelectric bimorph element 61205 such as the embodiment 155 in FIG. 245 may be perpendicular to the surface of the front plate 61201a (that is, the front-back direction of the mobile phone 61001) as in the embodiment 157 in FIG. In each embodiment, as in the embodiment 154 of FIG. 244, the vibration direction of the piezoelectric bimorph element may be held so as to be inclined with respect to the front plate or the upper frame portion.

  Further, in the embodiment 155 of FIG. 245 and the embodiment 156 of FIG. 247, instead of disposing one piezoelectric bimorph element at the center of the upper frame, the right side as in the embodiment 157 of FIG. 248 to the embodiment 159 of FIG. The piezoelectric bimorph element for the ear and the piezoelectric bimorph element for the left ear may be arranged at both corners of the upper part of the mobile phone. In this case, in accordance with the structure of the embodiment 155 of FIG. 245 and the embodiment 156 of FIG. 247, the piezoelectric bimorph element for the right ear and the piezoelectric bimorph element for the left ear are respectively connected to both ends of the upper frame without interposing an elastic body. Attach it directly to the top of the right and left frames.

  FIG. 251 is a front view of Example 160 according to the embodiment of the present invention, which is configured as a receiver, specifically, a stereo headset 66001 for a mobile phone or a portable music terminal. FIG. 251 shows a front view (corresponding to the side of the face) of the headset for the right ear attached to the right ear 28 of the stereo headset 66001. For simplicity, illustration of faces other than the right ear 28 is omitted. doing. In addition, to avoid complicating the illustration, the ears 28 are shown by solid lines, and the configuration of the headset to be mounted is shown by broken lines. The appearance of the headset for the left ear in the embodiment 160 is almost the same as that of the headset for the right ear shown in FIG. 251. Therefore, only the right ear headset will be described below for simplification. Differences in the internal configuration and the like of the headset for the right ear and the headset for the left ear will be described later.

  The right ear headset has a right ear cartilage conduction vibrating portion 66024 shaped to fit into the concha cavity 28e of the right ear 28. Vibrations on the surface of the right ear cartilage conduction vibrating portion 66024 are transmitted to the otocarpal cavity 28e including the tragus 32 and the ot cartilage around the ear canal 30a through a wide contact area, thereby increasing the efficiency of cartilage conduction. Occurs. For this reason, in Example 160, the entire right ear cartilage conduction vibration part 66024 having a shape that fits into the concha cavity 28e is configured to vibrate, and the vibration is not suppressed for a part thereof. Specifically, two small piezoelectric bimorph elements 66025a and 66025b are embedded as vibration sources in the cartilage conduction vibration unit for right ear 66024, and the vibrations are transmitted to the entire cartilage conduction vibration unit for right ear 66024. Further, a through hole 66024a is provided at the center of the cartilage conduction vibration part for right ear 66024, so that even when the cartilage conduction vibration part for right ear 66024 is fitted into the concha cavity 28e, external air conduction sound is generated in the external auditory canal opening 30a. You can enter and reach the eardrum. As shown, the small piezoelectric bimorph elements 66025a and 66025b are disposed on both sides of the through hole 66024a.

  In addition, the cartilage conduction vibration part for right ear 66024 fits into the concha space 28e and vibrates as a whole to efficiently transmit the vibration to the ear cartilage around the ear canal 30a through a wide contact area. The air conduction sound generated from the surface of the right ear cartilage conduction vibration part 66024 is small because it is not large. As will be described later, the vibration energy of the entire right ear cartilage conduction vibrating part 66024 is concentrated exclusively on the transmission to the cartilage, and the vibration is transmitted to other parts of the right ear headset, and the air conduction sound is transmitted from the surface thereof. Is suppressed from occurring.

  The frequency characteristics of the two small piezoelectric bimorph elements 66025a and 66025b embedded in the cartilage conduction vibration part for right ear 66024 are basically the same, and since they are small, the vibration acceleration level in the high frequency region is low. It is relatively larger than that. On the other hand, as shown in FIG. 132 (B), for example, as shown in FIG. For this reason, in Example 160, a small piezoelectric bimorph element having a relatively large vibration acceleration level in a high frequency range is employed, and by further using a plurality of the piezoelectric bimorph elements, the absolute level of the vibration acceleration in the high frequency range is also increased. I have. On the other hand, the absolute level of the vibration acceleration level in the low frequency range, which has become relatively small due to the small size, is reinforced by using two small piezoelectric bimorph elements 66025a and 66025b. Even if a plurality of piezoelectric bimorph elements having the same frequency characteristics are used, the vibration acceleration level in the low frequency range is still relatively small, but the frequency characteristics of the ear cartilage in cartilage conduction are complementary to this as described above. Therefore, the frequency characteristic of the final sound reaching the eardrum is closer to flat than that of the vibration acceleration of the piezoelectric bimorph element. As described above, a small-sized cartilage conduction vibrating part for right ear 66024 that realizes efficient cartilage conduction despite the small surface area that causes air conduction sound is configured.

  The right ear headset has a right ear hook 66089a as shown in FIG. The right ear hook portion 66089a and the cartilage conduction vibration unit for right ear 66024 are connected to the cartilage conduction vibration unit for right ear 66024 by a right elastic connection unit 66073a having a different acoustic impedance. As a result, transmission of the vibration of the cartilage conduction vibration unit for right ear 66024 to the right ear hooking unit 66089a as described above is suppressed, and the entire vibration energy of the cartilage conduction vibration unit for right ear 66024 is concentrated on transmission to the cartilage. Let me do.

  The right ear hook part 66089a communicates with a mobile phone or a portable music terminal by short-range wireless communication, and transmits a drive signal to the right ear cartilage conduction vibration part 66024 by a signal line passing through the right elastic connecting part 66073a. The voice picked up by the microphone 66023 is transmitted to a mobile phone or the like. Power for these functions is supplied from a power supply unit 66048 having a right battery 66048a and the like provided in the right ear hook unit 66089a. The weight of the right battery 66048a attached to the battery holder 66048b suppresses the vibration of the right ear hook 66089a due to its inertia, and reduces the air conduction sound generated from the surface.

  The right ear hook 66089a and the left ear headset are connected by a flexible cable 66081. As will be described later, a signal line for transmitting a drive signal to the cartilage conduction vibration unit for the left ear and a connection line with the left battery 6 pass through the cable 66081.

  FIG. 252 is an overall block diagram of a stereo headset 66001 in the embodiment 160 of FIG. The same parts as those in FIG. 251 are denoted by the same reference numerals, and description thereof will be omitted unless necessary.

  The right ear cover 66089a has a control unit 66039 for controlling the entire stereo headset 66001, and communicates with a mobile phone or a portable music terminal by the short-range communication unit 66046 based on the operation of the operation unit 6609. Then, the driving section 66036 is driven based on the received voice signal or audio signal, and the piezoelectric bimorph elements 66025a and 66025b of the cartilage conduction vibration section for right ear 66024 are driven by a signal line passing through the inside of the right elastic connecting section 66073a. In addition, a voice signal picked up by the microphone 66023 is transmitted to a mobile phone or the like by the short distance communication unit 66046.

  On the other hand, the left ear hanging portion 66089b has the same appearance as the right ear hanging portion 66089a in appearance as described above. Further, inside the cartilage conduction vibration unit for left ear 60026, two small piezoelectric bimorph elements 66025c and 66025d are embedded as vibration sources in the same manner as the cartilage conduction vibration unit for right ear 60024, and their vibrations are reduced. The vibration is transmitted to the entire left ear cartilage conduction vibration part 66026. Even if the cartilage conduction vibration part for left ear 66026 is fitted into the concha of the left ear by the through-hole 66024b provided at the center, the external air-conducted sound reaches the eardrum from the external auditory canal of the left ear and the right ear This is the same as the case of the cartilage conduction vibrating part 60024.

  The left ear hook part 66089b functions as an ear hook exclusively for the left ear cartilage conduction vibration part 66026 as a result of the internal configuration necessary for the control function of the stereo headset 66001 concentrated on the right ear hook part 66089a. Then, similarly to the head set for the right ear, the left ear hook part 66089b and the cartilage conduction vibration part for the left ear 66026 are connected by the left elastic connecting part 66073b. The acoustic impedance of the left elastic connecting portion 66073b is different from that of the left ear cartilage conduction vibrating portion 66026, similarly to the right ear headset. Thus, similarly to the headset for the right ear, the transmission of the vibration of the cartilage conduction vibration part for the left ear 66026 to the left ear hook part 66089b is suppressed, and the vibration energy of the whole cartilage conduction vibration part for the left ear 66026 is exclusively used. Focus on cartilage transmission.

  Next, the configuration of the power supply unit will be described. The power supply section 66048 is basically the internal structure of the right ear hanging section 66089a, but its battery mounting section is divided into two parts, and one of the two is used as a battery holder 66048b for mounting the right battery 66048a on the right ear hanging section 66089a side. , While the other battery holder 66048c is arranged on the left ear hook 66089b for mounting the left battery 66048d. Thus, the weight of the left battery 66048d suppresses the vibration of the left ear hook 66089b due to its inertia, and reduces the air conduction sound generated from the surface thereof. In this manner, the weight of the battery is also divided and disposed on the left ear hanging portion 66089b for the purpose of suppressing the air conduction sound from the left ear hanging portion 66089b. As shown, the right battery 66048a and the left battery 66048b are connected in series to secure a power supply voltage necessary for the power supply unit 66048 disposed in the right ear hook 66089a.

  The connection line for connecting the right battery 66048a and the left battery 66048d and the drive signal for the left ear from the drive unit 66036 are connected to the cable 660841 that connects the right ear cover 66089a and the left ear cover 66089b. A signal line for transmitting to the piezoelectric bimorph elements 66025c and 66025d passes.

  FIG. 253 is a front view of Example 161 according to the embodiment of the present invention, and is configured as a stereo headset 67001 for a receiving device, specifically, a mobile phone or a portable music terminal. The embodiment 161 shown in FIG. 253 has many points in common with the embodiment 160 of FIG. 251. Therefore, the same components are denoted by the same reference numerals and description thereof will be omitted unless necessary. For simplicity, illustration of faces other than the right ear 28 and the left ear 30 is omitted. Also, as in FIG. 251, the ears 28 and 30 are shown by solid lines, and the configuration of the headset is shown by broken lines. FIG. 253 (A) is a front view of the head set for the right ear of the embodiment 161 and its configuration is almost the same as that of FIG. 251 of the embodiment 160. However, as will be described later, the power supply unit is not divided, and the weight of the battery 67048e is concentrated on the right ear hooking portion 67089a of the right ear headset. The flexible cable 67081 is directly connected to the cartilage conduction vibration unit for the left ear as described later, and only a signal line for transmitting a drive signal to the cartilage conduction vibration unit for the left ear passes therethrough.

  FIG. 253 (B) is a front view of the left ear headset of Example 161. The left ear headset of Example 161 does not have an ear hook portion, and basically includes only the left ear cartilage conduction vibrating portion 67026. However, in order to stabilize the wearing state in which the left ear cartilage conduction vibration part 67026 is fitted into the concha of the left ear 30, it is necessary to temporarily hook the cable 67081 to the ear and then connect the cable 67081 to the right ear hook part 67089a. It has a length that allows it. Further, in order to prevent the vibration from being transmitted from the strained cable 67081 to the right ear hanging portion 67089a in a telephone state, the length of the cable 67081 is such that there is enough slack behind the neck in the mounted state. It is common to the embodiment 160 that the vibration of the two small piezoelectric bimorph elements 67025c and 67025d is transmitted to the entire left ear cartilage conduction vibration part 67026. Further, even if the cartilage conduction vibration part for left ear 67026 is fitted into the concha of the left ear, the external air conduction sound reaches the eardrum from the external auditory canal opening of the left ear by the through hole 67026a provided in the center. This is common with the embodiment 160.

  FIG. 254 is an overall block diagram of a stereo headset 67001 in the embodiment 161 of FIG. 253. The same parts as those in FIG. 253 are denoted by the same reference numerals, and description thereof will be omitted unless necessary. Further, FIG. 254 has a lot in common with the block diagram shown in FIG. 252 for the embodiment 160, and thus the same components are denoted by the same reference numerals and the description thereof will be omitted unless necessary.

  The first difference between FIG. 254 related to the embodiment 161 and FIG. 252 related to the embodiment 160 is that the battery 67048 is not divided as described above, and the battery 67048e for securing the required voltage in the battery holder 66048b of the power supply unit 67048. Are all attached. The second point is that there is no left ear hanging portion, and a flexible cable 67081 is directly connected to the left ear cartilage conduction vibrating portion 67026, and the left ear driving signal from the driving portion 66036 is applied to the piezoelectric bimorph element 67025c. This is the point that only the signal line transmitting to 67025d passes. As described above, since the cable 67081 is flexible and has a length enough to be loosely attached so as not to be in a state of a land telephone, the vibration of the left ear cartilage conduction vibration part 67026 is transmitted through the cable 67081. Transmission to the right ear hanging portion 67089a is prevented.

  FIG. 255 is a system block diagram of Example 162 according to the embodiment of the present invention, and is configured as a receiving device, specifically, a stereo earphone 68001 and a portable music terminal 69001 for a mobile phone or a portable music terminal. . The embodiment 162 shown in FIG. 255 has many points in common with the embodiment 161 shown in FIGS. 253 and 254. Therefore, the same components are denoted by the same reference numerals and description thereof will be omitted unless necessary. For simplicity, illustration of faces other than the right ear 28 and the left ear 30 is omitted. Further, similarly to FIG. 251 and the like, the ears 28 and 30 are illustrated by solid lines, and the configuration of the earphone is illustrated by broken lines.

  In the embodiment 162 of FIG. 255, the left ear earphone attached to the left ear 30 has exactly the same configuration as the left ear headset of the embodiment 161 shown in FIG. 253 (B). The flexible cable 67081 is directly connected to a portable music terminal described later.

  In addition, the earphone for the right ear attached to the right ear 28 in the embodiment 162 of FIG. 255 has exactly the same configuration as the earphone for the left ear attached to the left ear 30 in FIG. Similarly, it is directly connected to a portable music terminal described later by a flexible cable 68081. The right ear cartilage conduction vibration part 68024, the small piezoelectric bimorph elements 68025a and 68025b, and the through hole 68024a in the left ear earphone are respectively the left ear cartilage conduction vibration part 67026 and the small piezoelectric bimorph elements 67025c and 67025d in the left ear earphone. Since they correspond to the through holes 67026a, respectively, the description is omitted.

  The portable music terminal 69001 in the embodiment 162 of FIG. 255 stores the music data downloaded by the short-range communication unit 69046 in the storage unit 69037. By operating the operation unit 69909 referring to the display on the display unit 69005, the control unit 69039 transmits a stereo drive signal based on the music data in the storage unit 69037 from the drive unit 69936 to the cartilage conduction vibration unit 68024 for the right ear and the cartilage conduction for the left ear. The vibration is transmitted to the vibration unit 68026.

  The portable music terminal 69001 is provided with a microphone 69923, and can function as a stereo headset for the mobile phone together with the stereo earphone 68001 by communicating with the mobile phone through the short-range communication unit 69046. The power supply 69048 provided with the battery holder 69048e to which the electrodeposition 69048b is mounted supplies power to the entire portable music terminal 69001. The power supply 67048 of the embodiment 161 in FIG. 254 supplies power to the entire right ear hanging portion 67089a. Is the same as

  In the embodiment 162 in FIG. 255 as well, the cables 67081 and 68081 are flexible and have a length to be loosely attached so as not to be in a state of a land telephone, so that the cartilage conduction vibrating part 68024 for the right ear and the left ear Of the vibration of the cartilage conduction vibrating part 67026 is transmitted to the portable music terminal 69001 via the cables 67081 and 68081. This prevents the portable music terminal 69001 from vibrating and generating air conduction sound from its surface.

  FIG. 256 is a front view showing a modified example of the cartilage conduction vibration part used in Examples 160 to 162 shown in FIGS. 251 to 255. For the sake of explanation, a modified example of the cartilage conduction vibration unit for the right ear 66120 of the embodiment 160 is shown. However, any of the other embodiments or the cartilage conduction vibration unit for the left ear can be adopted. The configuration shown in FIG. 256 (A) is the same as that used in the embodiments 160 to 162, and is denoted by the same reference numeral.

  On the other hand, in FIG. 256B, three small piezoelectric bimorph elements 66025e, 66025e, and 66025e having the same frequency characteristics are arranged at equal angular intervals around the through hole 66024a as vibration sources. FIG. 256 (C) shows four small piezoelectric bimorph elements 66025h, 66025i, 66025j, and 66025k having the same frequency characteristics arranged at equal angular intervals around the through hole 66024a as vibration sources. Further, FIG. 256 (D) shows a configuration in which one small piezoelectric bimorph element 660251 is arranged as a vibration source beside the through hole 66024a as the simplest configuration when the vibration energy is sufficient.

  On the other hand, FIG. 256 (E) shows a configuration in which a curved piezoelectric bimorph element 66025m is provided around the through hole 66024a. This configuration provides a through hole 66024a and, in spite of being a cartilage conduction vibrating portion having a reduced surface area that causes air conduction sound, curves the piezoelectric bimorph element 66025m around the through hole 66024a. It is possible to elongate its shape, which is suitable for mitigating excessive reduction of low frequency components in frequency characteristics. FIG. 256 (F) shows a case where curved piezoelectric bimorph elements 66025n and 66025o similar to those of FIG. 256 (E) are provided on both sides of the through-hole 66024a, and the vibration energy is entirely enhanced with the same frequency characteristics.

  FIG. 256 (G) shows a configuration in which one small piezoelectric bimorph element 70025 is arranged as a vibration source in the center of the cartilage conduction vibration part 70025, and a pair of through holes 70024a and 70024b are provided on both sides so as to sandwich the element. is there. This configuration makes it possible to arrange even a small piezoelectric bimorph element 70025 in a position that is not biased in the cartilage conduction vibration part 70024. FIG. 256 (H) shows that the small piezoelectric bimorph element 71025 is extended in the diameter direction by taking advantage of the fact that it can be arranged in the center, so that the excessive reduction of the low frequency component in the frequency characteristic is mitigated. It was made.

  In FIG. 256 (I), as in FIG. 256 (G), one small piezoelectric bimorph element 70025 is arranged as a vibration source at the center of the cartilage conduction vibrating portion 71024, and around this periphery, at equal angular intervals. A plurality of (for example, six) through holes 71024a, 71024b, 71024c, 71024d, 711024e, 71024f are provided. This configuration is also suitable for disposing one small piezoelectric bimorph element 70025 at a position where the cartilage conduction vibration part 71024 is not biased.

  As described above, as shown variously in FIG. 256, the entire cartilage conduction vibrating portion is vibrated for efficient cartilage conduction, and the cartilage conduction oscillating portion is fitted into the concha cavity 28 so as to increase the contact area with the cartilage. On the other hand, when the cartilage conduction vibrator is configured to be small in size to reduce the surface area that causes air conduction noise, the number and shape of the piezoelectric bimorph elements and the number and shape of the through holes change the vibration energy. It is possible to adjust the size and frequency characteristics.

  The implementation of the various features shown in each of the above embodiments is not limited to the above embodiments, and can be implemented in other embodiments as long as the advantages can be enjoyed. The features can be combined and adopted in one embodiment. For example, the right elastic connecting portion 66073a and the left elastic connecting portion 66073b in the embodiment 160 of FIG. 252 are configured as flexible cables used in the embodiment 162 of FIG. 255 so as not to have a positive supporting function. You may.

  In the embodiment 162 shown in FIG. 255, the portable music terminal 69001 is configured as a mobile phone, and the cartilage conduction vibrating part 68024 for the right ear and the cartilage conduction vibrating part 67026 for the left ear are connected with the cables 67081 and 68081. May be connected. In this case, the cartilage conduction vibration unit for right ear 68024 and the cartilage conduction vibration unit for left ear 67026 function as a stereo earphone for a mobile phone. At this time, of course, the ends of the cables 67081 and 68081 are combined into a stereo plug and inserted into the stereo jack of the mobile phone.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a receiver such as a mobile phone or a portable music terminal.

66024, 66026, 67026, 68024 70024, 71024 Cartilage electric vibration parts 66025a, 66025b, 66025c, 66025d, 67025c, 67025d, 68025a, 68025b, 66025e, 66025f, 66025g, 66025h, 6025i, 6025i, 6025i, 2525 66025o, 70025, 71025 Vibration sources 66073a, 66073b, 67081, 68081 Connections 66024a, 66026a, 67026a, 68024a, 70024a, 70024b, 71024a, 71024b, 71024c, 71024d, 71024e, 71024f What Cables 66089a, 66089b Ear hooks 66048a, 66048d Batteries 66025a, 66025b, 66025c, 66025d, 67025c, 67025d, 68025a, 68025b, 66025e, 66025f, 66025g, 66025h, 66025i, 6025j, 625625 71025 Piezoelectric bimorph element

Claims (6)

A cartilage conduction vibrating portion that does not exceed a size that fits into the concha cavity, a plurality of vibration sources arranged to vibrate the entire cartilage conduction vibration portion, and a cartilage conduction vibration portion that is connected to the cartilage conduction vibration portion. The cartilage conduction vibrating portion and a connection portion having a different acoustic impedance,
The cartilage conduction vibrating portion is provided with a through-hole so that external air conduction sound enters the ear canal,
The receiver according to claim 1, wherein the plurality of vibration sources are arranged in a cartilage conduction vibration unit. A cartilage conduction vibrator that does not exceed a size that fits into the concha of the concha, a vibration source arranged to vibrate the entire cartilage conduction vibrator, and a cartilage connected to the cartilage conduction vibrator, Having a connection part having a different acoustic impedance from the conduction vibration part,
The cartilage conduction vibration portion is provided with a plurality of through holes so that external air conduction sound enters the ear canal,
The receiver according to claim 1, wherein the vibration source is disposed in a cartilage conduction vibration unit. It further has an ear hook,
The connection unit connects the ear hook unit and the cartilage conduction vibration unit,
A vibration source that vibrates the cartilage conduction vibration unit is disposed inside the cartilage conduction vibration unit,
The earpiece according to claim 1, wherein the ear hook has a microphone and a drive signal source for the vibration source.   The earpiece according to claim 3, wherein the ear-hook unit further includes a short-range communication unit. Connected to the receiver of claim 1 or 2 via the connection unit,
A driving unit that drives the vibration source via the connection unit;
A short-range communication unit for downloading music data,
A portable music terminal having:   A pair of the cartilage conduction vibrating portion is provided for each of the right ear and the left ear, and an ear hook portion provided for one ear and having the drive signal source is provided. The cartilage conduction vibrating portion, which is connected to an ear hook portion provided for one ear and has no ear hook portion, is connected to the ear hook portion by the connection portion. Item 3. The receiver according to item 1 or 2.