JP2013042562A - Cellular phone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cellular phone having user-friendly functions.SOLUTION: Cartilage conduction vibration parts capable of coming into contact with the tragi are provided at both upper corners of a cellular phone without projecting from the external wall thereof. A speech output part is provided between the cartilage conduction vibration parts provided, respectively, at both upper corners of a cellular phone. Speech information is output simultaneously from the cartilage conduction vibration part and the speech output part, and the audio signals being output to both parts are adjusted relatively. An environmental noise microphone, and a phase adjustment part which outputs the speech information picked up from the environmental noise microphone to the cartilage conduction vibration part while reversing the phase are provided, and environmental noise to the tympanic membrane is cancelled.

Description

  The present invention relates to a mobile phone.

  Conventionally, various mobile phones have been proposed for various purposes. For example, in order to provide a mobile phone that can be heard clearly even under high noise, a bone-conduction speaker is employed, and a mobile phone including an external ear canal closing means has been proposed. (Patent Document 1) On the other hand, as a method of using a bone conduction speaker, the vibration surface abutted against the tragus is manually adjusted to adjust the pressure with which the abutment comes into contact with the tragus so that the cartilage guide is adapted to the magnitude of the external noise. It has also been proposed to change the transmission ratio between voice information via the air and voice information via the air guide. (Patent Document 2) Further, it has been proposed to use a piezoelectric element as a vibration source for bone conduction.

JP 2003-348208 A Japanese Patent No. 4541111

  However, there are many issues that need to be further studied for mobile phones.

  In view of the above, an object of the present invention is to provide a mobile phone having an easy-to-use function.

  In order to achieve the above object, the present invention provides a mobile phone provided with a cartilage conduction vibration portion that does not protrude from the outer wall of the mobile phone and abuts against the ear cartilage.

  With the above-described configuration, it is possible to provide a mobile phone that can be used with a feeling of use close to a normal call state without using the uncomfortable feeling of pressing or ear insertion by utilizing the good voice information transmission capability of the ear cartilage.

  According to a specific feature of the present invention, the cartilage conduction vibration part is arranged at the upper corner of the mobile phone.

  With the above configuration, natural contact with the ear cartilage can be achieved, and the arrangement of the cartilage conduction vibration portion that does not protrude from the outer wall of the mobile phone can be realized.

  According to another specific feature of the present invention, the cartilage conduction vibration portion is disposed at a position where it can contact the tragus.

  With the above configuration, it is possible to achieve natural contact with the tragus having good cartilage conduction efficiency, and to realize the arrangement of the cartilage conduction vibration unit that does not protrude from the outer wall of the mobile phone.

  According to another specific feature of the present invention, the cartilage conduction vibration portion is provided at each of the upper corners of the mobile phone.

  With the above configuration, it is possible to achieve natural contact with the ear cartilage corresponding to both right ear use and left ear use.

  According to a more specific feature of the present invention, an audio output unit is provided between the cartilage conduction vibration units provided at both upper corners of the mobile phone. This enables listening by cartilage conduction and normal sound. According to a more specific feature, there is provided an adjusting unit that relatively adjusts an audio signal to be output to both of the cartilage conduction vibration unit and the audio output unit while simultaneously outputting the audio information.

  According to another specific feature of the present invention, an environmental noise microphone and a phase adjustment unit that outputs the audio information picked up from the environmental noise microphone to the cartilage conduction vibration unit by inverting the phase are provided. As a result, environmental noise can be canceled.

  As described above, according to the present invention, a useful mobile phone using cartilage conduction can be provided.

It is a perspective view which shows Example 1 of the mobile phone which concerns on embodiment of this invention. Example 1 It is a side view of the mobile telephone 1 which shows the function of a right ear use state and a left ear use state. 1 is a block diagram of Example 1. FIG. It is a flowchart of operation | movement of the control part in Example 1 of FIG. It is a perspective view which shows Example 2 of the mobile telephone which concerns on embodiment of this invention. (Example 2) It is a perspective view which shows Example 3 of the mobile telephone which concerns on embodiment of this invention. Example 3

  FIG. 1 is a perspective view showing Example 1 of the mobile phone according to the embodiment of the present invention. In FIG. 1, a cellular phone 1 includes an upper part 7 having a display unit 5 and the like, and a lower part 11 having an operation unit 9 such as a numeric keypad and a transmission unit 23 such as a microphone that plays a sound generated from the operator's mouth. 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 receiving part 13 such as an earphone for transmitting sound to the operator's ear, and constitutes a telephone function together with the transmitting part 23 of the lower part 11. In addition, an upper camera 7 can be used to capture the face of the operator who is looking at the display unit 5 when the mobile phone 1 is used as a videophone. Has been. Further, the upper portion 7 has a pair of infrared light emitting units 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 with a common infrared proximity sensor 21 for receiving light. Although not shown in FIG. 1, a rear camera is provided on the rear surface of the upper portion 7, and a subject that is on the rear surface side of the mobile phone 1 and is monitored by the display unit 5 can be photographed.

  The upper portion 7 is further provided with a right ear vibrating portion 24 and a left ear vibrating portion 26 made of a piezoelectric bimorph element or the like for contacting the tragus at the upper corner on the inner side (the side that contacts the ear). The right-ear vibration part 24 and the left-ear vibration part 26 are configured to protrude from the outer wall of the mobile phone so as not to harm the design. Contact. Accordingly, it is possible to receive the voice by the bone conduction from the tragus cartilage together with the voice reception from the receiver 13. In addition, as disclosed in the above-mentioned Patent Document 2, the tragus is the most audible sensation in the structure of the ear cartilage such as the otic mastoid process, the outer cartilage surface of the outer ear mouth, the tragus and the raised part, and is pressed. It is known that the rise of the bass when the pressure is increased is greater than other positions. Since this knowledge is described in detail in Patent Document 2, it can be referred to.

  When this is applied to the right ear, the mobile phone 1 is slightly rotated clockwise in FIG. Then, by providing the right-ear vibration unit 24 at the lower inclined corner of the upper end of the mobile phone ear side, the right-ear vibration unit 24 can be naturally connected to the right ear without projecting the vibration unit from the outer wall of the mobile phone. Can be brought into contact with the beads. This state is a posture close to a normal call state, and there is no sense of incongruity for the caller himself / herself. Note that since the receiver 13 is in the vicinity of the right-ear vibration unit 24, both the audio information via the tragus cartilage and the audio information via the external auditory canal are transmitted to the ear. At this time, since the same audio information is transmitted through different pronunciation pairs and routes, phase adjustment between the two is performed so that they do not cancel each other.

  On the other hand, when the mobile phone 1 is put on 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 left-ear vibration unit 26 is provided at the inclined lower side corner at the upper end of the mobile phone ear side, and the left-ear vibration unit 26 is naturally connected to the left ear tragus. Can be contacted. Since this state is a posture close to a normal call state, and the receiving unit 13 is in the vicinity of the left ear vibrating unit 26, both voice information via the tragus cartilage and voice information via the ear canal are transmitted to the ear. The phase adjustment between the two is the same as in the case of the right ear.

  In addition, 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 receives reflected light by infrared light from any light emitting unit. Whether the light is received or not can be identified, so that it can be determined which of the right-ear vibration unit 24 and the left-ear vibration unit 26 hits the tragus. As a result, it is possible to determine which ear the mobile phone is being used, and it is possible to vibrate the vibration part on which the tragus is in contact and turn off the other. However, since there are variations in how the mobile phone 1 is applied to the ear and individual differences in the shape of the ear, the acceleration sensor is incorporated in the first embodiment as will be described later, and the gravitational acceleration detected by this acceleration sensor. Thus, the mobile phone 1 is detected to be tilted to vibrate, and the vibration portion on the lower corner of the tilt is vibrated and the other is turned off. The use of the right ear and the use of the left ear described above will be described again with reference to the drawings corresponding to each specification state.

  Further, the upper part 7 is arranged on the outer side (the back side that does not hit the ear) so as to pick up environmental noise, and is provided with a means for preventing vibration conduction of the right-ear vibration part 24 and the left-ear vibration part 26. A microphone 38 is provided. The environmental noise microphone 38 further picks up sound produced from the operator's mouth. The environmental noise picked up by the environmental noise microphone 38 and the operator's own voice are phase-inverted and then mixed by the right-ear vibration unit 24 and the left-ear vibration unit 26, and are included in the audio information via the reception unit 13. Cancels noise and the operator's own voice to make it easier to hear the voice information of the other party. Details of this function will be described later.

  FIG. 2 is a side view of the mobile phone 1 showing the functions of the right-ear vibration unit 24 and the left-ear vibration unit 26. FIG. 2A shows the mobile phone 1 in the right hand and the right ear 28 applied thereto. It shows the state. On the other hand, FIG. 2B shows a state in which the mobile phone 1 is held in the left hand and is placed on the left ear 30. 2A is a view seen from the right side of the face, and FIG. 2B is a view seen from the left side of the face, so the mobile phone 1 is on the back side (the back side in FIG. 1). 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 one-dot chain line.

  As shown in FIG. 2A, when the mobile phone 1 is put on the right ear, the mobile phone 1 is slightly tilted counterclockwise in FIG. . And since the vibration part 24 for ear | edges is provided in the inclination lower side corner of such a mobile telephone ear side upper end, this can be made to contact the tragus 32 of a right ear naturally. As already described, this state is a posture close to a normal call state, and there is no sense of incongruity for the caller himself / herself. On the other hand, as shown in FIG. 2 (B), when the cellular phone 1 is put on the left ear, the mobile phone 1 is slightly inclined clockwise in FIG. Become. Since the ear vibration unit 26 is provided at the lower inclined corner at the upper end of the mobile phone ear side, it can be naturally brought into contact with the tragus 34 of the left ear. Even in this state, as in the case of the right ear, the posture is close to that of a normal call state, and there is no sense of incongruity between the caller and the side.

  FIG. 3 is a block diagram of the first embodiment. The same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof 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 also temporarily store data necessary for the control of the control unit 39 and also store various measurement data and images. Display on the display unit 5 is performed based on 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 39 adjusts the brightness based on the ambient 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 guidance under the control of the control unit 39 and outputs the other party's voice during a videophone call. The sound output of the speaker 51 is not output from the right-ear cartilage transmission vibration unit 24 and the left-ear cartilage transmission vibration unit 26. This is because there is no possibility that the cartilage conduction vibration part is applied to the ear during a videophone call. 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 images of these processing results 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 based on the control of the control unit 39. Therefore, the reflected infrared light input to the control unit 39 by the common infrared light proximity sensor 21 can be reflected by the infrared light from any light emitting unit. When the reflected light is detected from both of the infrared light emitting units 19 and 20, the control unit 39 compares these with each other, and either the right ear vibrating unit 24 or the left ear vibrating unit 26 hits the tragus. Judge whether. Furthermore, 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 FIG. 2 (A) or FIG. 2 (B), and as described with reference to FIG. One vibration part is vibrated and the other is turned off.

  The cellular phone 1 further includes a phase adjustment mixer unit 36 that adjusts the phase of the audio information from the control unit 39 and transmits the audio information to the right ear vibration unit 24 and the left ear vibration unit 26. More specifically, the phase adjusting unit 36 is generated from the receiving unit 13 and transmitted from the external ear canal via the eardrum and the right ear vibrating unit 24 or the left ear vibrating unit 26 via the tragus cartilage. The sound information from the control unit 39 is phase-adjusted with reference to the sound information transmitted from the control unit 39 to the receiving unit 13 so that the same sound information transmitted through 24 and the left ear vibration unit 26. This phase adjustment is a relative adjustment between the receiving unit 13 and the right-ear vibration unit 24 and the left-ear vibration unit 26, so that the control unit 39 changes the right-ear vibration unit 24 and the left-ear vibration unit 26. You may comprise so that the phase of the audio | voice information transmitted to the receiving part 13 from the control part 39 may be adjusted on the basis of the audio | voice information transmitted. In this case, the audio information to the speaker 51 is also adjusted in the same phase as the audio information to the receiver 13.

  The phase adjustment mixer unit 36 prevents the audio information from the receiving unit 13 and the same audio information from the right ear vibration unit 24 or the left ear vibration unit 26 from canceling each other. In addition to the above function, the second function is provided 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 itself are phase-inverted by the phase adjustment mixer unit 36, and then the audio information of the right ear vibrating unit 24 or the left ear vibrating unit 26 is obtained. This cancels the environmental noise and the operator's own voice included in the voice information via the receiver 13, thereby making it easier to hear the voice information of the other party. At this time, the environmental noise and the operator's own voice are effective regardless of the transmission route of the voice information from the receiver 13 and the voice information from the right-ear vibration unit 24 or the left-ear vibration unit 26. In order to cancel, the 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. Note that the flow of FIG. 4 mainly illustrates the functions of the right-ear vibration unit 24 and the left-ear vibration unit 26, so that the operations are extracted with a focus on related functions. There are also operations of the control unit 39 that are not shown in the flow of FIG. 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 at step S <b> 2, initial startup and function check of each unit are performed and screen display on the display unit 5 is started. Next, in step S4, the functions of the right-ear vibration unit 24 and the left-ear vibration unit 26 are turned off, and the process proceeds to step S6. In step S, it is checked whether or not there is an operation that does not use radio waves such as a mail operation, Internet operation, other settings, and a downloaded game (hereinafter collectively referred to as “non-call operation”). If there are these operations, the process proceeds to step S8 to execute non-call processing, and the process proceeds to step S10. Note that the non-call operation does not assume a function that applies the functions of the receiver 13, the right ear vibrating unit 24, and the left ear vibrating unit 26 in the upper portion 7 of the mobile phone 1 to the ear. On the other hand, when a 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 mobile radio waves is being received. If the call is not being received, the process proceeds to step S12, and it is checked whether or not the response from the other party to the call from the mobile phone 1 is correct. If a response is detected, the process proceeds to step S14. On the other hand, when it is detected in step S10 that a call using a mobile radio wave is being received, the process proceeds to step S16, in which the mobile phone is opened, that is, the upper portion 7 is folded over the lower portion 11. To check whether it is open as shown in FIG. If it is not detected that the mobile phone is open, the process returns to step S10, and thereafter, steps S10 and S16 are repeated to wait for the mobile phone to be opened. If the incoming call is terminated without repeating the cellular phone, the flow moves from step S10 to step S12. On the other hand, if it is detected in step S16 that the mobile phone is open, the process proceeds to step S14. In step S14, the transmitter 23 and 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. If it is not a videophone, the process proceeds to step S20, and it is confirmed whether or not the call is disconnected at this point. If the call is not disconnected, 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 contact of the ear in step S22, the process returns to step S14, and thereafter, steps S14 and S18 to 22 are repeated to wait for the 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 there is a right-ear talking state tilt as shown in FIG. If applicable, the process proceeds to step S26, 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 right-ear call state tilt has occurred, the detection signal of the acceleration sensor 49 has detected the left-ear call state tilt as shown in FIG. In step S30, the left ear cartilage conduction vibration unit 26 is turned on, and the process proceeds to step S28.

  In the description of the flow of FIG. 4, the process proceeds to step S24 regardless 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 and in step S24, the acceleration sensor is detected. It has been described that it is detected whether or not the right-ear communication state inclination is based on the 49 signal. However, since the infrared light proximity sensor 21 can also detect whether or not the right-ear call state is inclined, the infrared light at the light emission timing of the infrared light emitting unit 19 is replaced with the signal of the acceleration sensor 49 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 call state inclination is present. In step S24, it is determined whether or not the right ear communication state inclination is obtained by combining the signal from the acceleration sensor 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. You may comprise so that it may carry out.

  In step S28, it is checked whether or not the call state is cut off. If the call is not cut off, the process returns to step S24, and step S24 to step S30 are repeated until a call cut is detected in step S28. This corresponds to the change of the mobile phone between the right-ear call state and the left-ear call state during a call. On the other hand, when a call disconnection is detected in step S28, the process proceeds to step S32, and the right-ear cartilage conduction vibration unit 24 or the left-ear cartilage conduction vibration unit 26, the reception unit 13 and the transmission unit 23 are turned off. Then, the process proceeds to step S34. On the other hand, if no call origination response is detected in step S12, the process immediately proceeds to step S34. If it is detected in step S18 that the videophone is used, the process proceeds to videophone processing in step S36. In the videophone processing, the video camera inner camera 17 captures the face of the user, the speaker 51 outputs the voice of the other party, the sensitivity of the transmitter 23 is switched, the display unit 5 displays the other party's face. When such a videophone process is completed, the process proceeds to step S38, the speaker 51, the receiving unit 13 and the transmitting unit 23 are turned off, and the process proceeds to step S34. When the call disconnection is detected in step S20, the process proceeds to step S38. At this time, since the speaker 51 is not originally turned on, the reception unit 13 and the transmission unit 23 are turned off, and the process proceeds to step S34.

  In step S34, it is checked whether or not the main power is turned off. 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 right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit 26 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 is not turned on when it is a videophone call and when the mobile phone 1 is not placed on the ear even in a normal call state. However, once the right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit 26 is turned on, the on / off switching between the right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit 26 is performed. This will not be turned off unless a call disconnect 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 gist of the invention is also common in the second embodiment, the corresponding parts are denoted by the same reference numerals as in the first embodiment, and the description thereof is omitted. The mobile phone 101 according to the second embodiment is an integrated type that does not have a movable part, and is not divided into an upper part and a lower part. Therefore, the “upper part” in this case does not mean the separated upper part, but means the upper part of the integrated structure.

  In the first embodiment, when the mobile phone 1 is folded, the right ear cartilage conduction vibration portion 24 and the left ear cartilage conduction vibration portion 26 are sandwiched between the upper portion 7 and the lower portion 11 and stored. On the other hand, in the second embodiment, the right ear cartilage conduction vibration portion 24 and the left ear cartilage conduction vibration portion 26 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, in relation to the difference in the structure described above, step S16 in the flowchart of FIG. 4 is omitted, and if it is confirmed in step S10 that a call is being received, the process proceeds directly 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 spirit of the invention is common also in the third embodiment, the corresponding parts are denoted by the same reference numerals as those in the first embodiment, and the description thereof is omitted. The mobile phone 201 according to the third embodiment has a structure in which an upper part 107 can slide relative to a lower part 111. In the structure of the third embodiment, when the upper portion 107 is overlapped with the lower portion 111, there is no vertical relationship, but the “upper portion” in the third embodiment means a portion that comes up when the mobile phone 201 is extended. To do.

  In the third embodiment, as shown in FIG. 6, the full function can be used with the upper portion 107 extended and the operation portion 9 exposed, and the upper portion 107 is overlapped with the lower portion 111 so that the operation portion 9 is hidden. But you can use basic functions such as incoming calls and calls. Also in the third embodiment, the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26 are both in the state in which the cellular phone 201 is extended as shown in FIG. The shape is always exposed on the outer wall of the mobile phone 201. Also in the third embodiment, the internal structure of FIG. 3 and the flowchart of FIG. 4 can basically be used. However, as described above, in the third embodiment, it is possible to make a call even when the upper portion 107 is overlapped with the lower portion 111. Therefore, similarly to the second embodiment, step S16 in the flowchart of FIG. 4 is omitted, and the call is made in step S10. When it is confirmed that the incoming 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 examples, but can be implemented in other embodiments. For example, in the above embodiment, the right-ear cartilage conduction vibration unit 24 and the left-ear cartilage conduction vibration unit 26 are provided in order to cope with both the right ear use and the left ear use due to change of hand and change of user. However, in the case of cartilage conduction, if it is assumed that only the right ear or only the left ear is used, one cartilage conduction vibration unit may be provided.

  The right-ear cartilage conduction vibration unit 24 and the left-ear cartilage conduction vibration unit 26 are originally provided on the premise that they come into contact with the tragus of the right ear and the left ear, respectively, but are disclosed in Patent Document 2. As described above, since cartilage conduction is possible even in an otic cartilage configuration other than the tragus, such as the otic mastoid process and the posterior cartilage surface of the outer ear mouth, both the cartilage conduction vibration part 24 for the right ear and the cartilage conduction vibration part 26 for the left ear are both. For example, when using the right ear, an appropriate portion of the right ear cartilage may be pressed at the same time. 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 vibration parts 24 and 26 as in the embodiment, both are turned on simultaneously.

The present invention can be applied to a mobile phone.

24, 26 Cartilage conduction vibration unit 32, 34 Tragus 13 Audio output unit 38 Environmental noise microphone 36 Adjustment unit

Claims (7)

  A mobile phone characterized in that a cartilage conduction vibration portion that does not protrude from the outer wall of the mobile phone and abuts against the ear cartilage is provided on the top of the mobile phone.   The mobile phone according to claim 1, wherein the cartilage conduction vibration unit is disposed at an upper corner of the mobile phone.   The mobile phone according to claim 1, wherein the cartilage conduction vibration unit is disposed at a position where the cartilage conduction vibration unit can come into contact with the tragus.   The mobile phone according to any one of claims 1 to 3, wherein the cartilage conduction vibration portions are provided at both upper corners of the mobile phone.   5. The mobile phone according to claim 4, further comprising an audio output unit between the cartilage conduction vibration units provided at both upper corners of the mobile phone.   6. The mobile phone according to claim 5, further comprising: an adjustment unit that relatively adjusts an audio signal output to both of the cartilage conduction vibration unit and the audio output unit and outputs audio information to both.   The mobile phone according to claim 1, further comprising an environmental noise microphone, wherein the cartilage conduction vibration unit includes an adjustment unit that outputs the audio information picked up from the environmental noise microphone by inverting the phase. phone.