JP2005079938A - Collapsible portable telephone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a collapsible portable telephone by which a user can transmit and receive a call in a folded state and perform speech communication without deteriorating transmitting/receiving voice quality even in both folded and opened states. <P>SOLUTION: This collapsible portable telephone A1 has an upper case 1, a lower case 2 and a hinge part 3 connecting the upper case 1 and the lower case 2 in a foldable manner, wherein the upper case 1 is provided with a display part 42 and a receiving part 41 for receiving voice, the lower case 2 is provided with a key operating part 51 and a transmitting part 52 for transmitting voice, the receiving part 41 is provided with a both sides speaking type receiver 411, and the upper case 1 has a through hole 13 at a position opposite to the transmitting part 52 in the state that the portable telephone is folded. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a foldable mobile phone, and more particularly to a foldable mobile phone capable of transmitting and receiving speech in a folded state.

  Currently, mobile phones have a very high penetration rate. Among them, a foldable mobile phone that folds the housing at the center or substantially the center has become the mainstream. Since the foldable mobile phone has a large area in a state where the housing is expanded, a larger display portion can be arranged, and a large button key can be arranged.

  In recent years, the casing of a mobile phone has become thinner, and even when it is folded, it does not become too thick, is compact, and can be put into a pocket or bag for clothes.

  However, when an incoming call is received with the folding cellular phone folded, the folding cellular phone is taken out, opened, and then answered. In this case, if both hands are free, you can open the mobile phone with both hands to receive the call, but if you have luggage or an umbrella, you can only handle the mobile phone with one hand and it is difficult to answer the call It is.

  In addition, the folded portion of the foldable mobile phone is formed in a hinge shape. If the folding portion is repeatedly opened and folded, a problem may appear in the folded portion.

  Therefore, the invention described in Japanese Patent Application Laid-Open No. 2002-111825 discloses a foldable mobile phone that can send and receive calls in a folded state. According to this technique, the foldable mobile phone B1 shown in FIG. 6 is configured such that the upper casing 91 and the lower casing 92 are pivotally connected by a hinge portion 93 so as to be foldable. The upper housing 91 includes a receiver 94 having a receiver and a transmitter 95 having a microphone.

  The folding cellular phone B1 is folded in the folded state so that the folding cellular phone B1 is folded in order to transmit and receive using the receiving unit 94 and the transmitting unit 95 provided in the upper casing 91. Through holes 921 and 922 are provided at positions facing the receiving section 94 and the transmitting section 95 of 92. With the foldable mobile phone B1 folded, it is possible to transmit and receive speech with the through-hole 921 of the lower housing 92 close to the ear and the through-hole 922 close to the mouth.

Further, the folding cellular phone B2 shown in FIG. 7 also has a receiving section 94 and a transmitting section 95 arranged in the upper casing 91, and an inner surface side on the front surface of the receiving section 94 and the transmitting section 95 of the upper casing 91. Through holes 911 and 912 communicating with the outer surface side are provided. Then, it is possible to transmit and receive speech with the outer surface side of the through hole 911 close to the ear and the outer surface side of the through hole 912 close to the mouth.
JP 2002-111825 A

  However, in the case of the conventional folding cellular phones B1 and B2 that can transmit and receive in the folded state, the upper housing 91 is provided with the receiver 94 and transmitter 95, so that the sound pressure from the receiver 94 is reduced. It acts on the microphone of the transmitter 95 and tends to deteriorate the received voice quality such as echo phenomenon and howling. Further, when calling with the cellular phone B1 folded, the distance from the receiver of the receiver 94 to the part to which the ear is applied is structurally increased by the thickness of the casing, so that sufficient sound pressure cannot be obtained and the received volume is low. There is a problem that it becomes difficult to hear. In addition, the outer surface of the upper casing 91 and the lower casing 92 of the cellular phones B1 and B2 are often not flat. When applied to the ear, the adhesion between the ear and the cellular phones B1 and B2 is poor and the received voice quality is also degraded. To do.

  Even when the folding cellular phones B1 and B2 are normally used in an open state, the transmitter 95 is installed in the same upper casing 91 as the receiver 94, so the distance between the user's ear and mouth On the other hand, when the distance between the receiver 94 and the transmitter 95 is short and the receiver 94 of the mobile phones B1 and B2 is placed on the ear, the distance between the transmitter 95 and the mouth becomes long, and the transmitted voice quality is deteriorated.

  Therefore, the present invention is a foldable mobile phone that can be sent and received in a folded state, and can make a call without degrading the quality of the transmitted and received voices in both the folded state and the opened state. An object is to provide a foldable mobile phone.

  In order to achieve the above-described object, the present invention is a foldable mobile phone having an upper casing, a lower casing, and a hinge portion that foldably connects the upper casing and the lower casing. The upper casing includes a display section and a receiving section for receiving voice, and the lower casing includes a key operation section and a transmitting section for transmitting voice. Provide a mobile phone.

  According to this configuration, even when both hands cannot be used and the mobile phone cannot be opened, a call can be made even with the mobile phone folded. In addition, since the receiving unit and the transmitting unit are separately attached to the upper housing and the lower housing, sound pressure interference from the receiving unit to the transmitting unit is reduced, and echo, howling, etc. It is possible to prevent the occurrence of unpleasant obstacles.

  Accordingly, the above-described failure is hardly generated even when the cellular phone is opened, and it is possible to make a call with high voice quality. Further, since the IC for voice processing is provided in the lower casing and the transmitter is also provided in the lower casing, the signal circuit for sending voice signals is short and it is difficult to pick up noise. Therefore, it is possible to provide a mobile phone with high call quality in both a folded state and an open state.

  An example of the upper casing having the above-described configuration is one having a through-hole at a position facing a transmitting portion provided in the lower casing in a state in which the cellular phone is folded.

  According to this configuration, even when a call is made with the cellular phone folded, the voice reaches through the through-hole, so that a high-quality call can be made even in the folded state.

  In the above configuration, the lower casing is provided with a first transmitter in a predetermined position on the inner surface side in a folded state, and the upper casing is a position close to a hinge on the outer surface side in a folded state of the mobile phone The thing provided with the 2nd transmission part instead of the said through-hole can be illustrated.

  According to this configuration, since the degree of freedom of the arrangement location of the first transmitter and the second transmitter is high, even when making a call in a state where the cellular phone is folded or opened, It is possible to provide a transmitter near the mouth, and it is possible to reliably send voice to the transmitter.

  Furthermore, the thing provided with the receiver of a double-sided sounding system can be illustrated as a transmission part of the said structure.

  Further, as the transmitter section having the above-described configuration, one having a single-sided sounding type receiver on each of the inner surface side and the outer surface side in a state where the cellular phone is folded can be exemplified.

  By providing the two receivers, it is possible to drive the receivers independently of each other, and when the user does not want to hear the content of the call by a person other than the user when making a call with the mobile phone open, It is possible to prevent the sound from leaking outside by stopping.

  In the above-described configuration, the receiving unit may include a one-side sounding receiver on the inner surface side and a speaker at a position corresponding to the one-side sounding receiver on the outer surface side when the cellular phone is folded. .

  According to this configuration, a speaker that emits sound for notifying the user when the mobile phone receives radio waves is used as a receiver, and therefore, no special receiver or multiple receivers are required, and the number of parts is accordingly large. Can be reduced. By reducing the number of parts, it is possible to manufacture the mobile phone more compactly and inexpensively.

  In the above-mentioned configuration, the upper case and / or the lower case may be provided with detection means for detecting whether the mobile phone is in a folded state or an open state. Can do.

  Examples of the detection means include, but are not limited to, an optical sensor and an objective sensor. Moreover, as the detecting means, a device that can detect whether the cellular phone is in a folded state or an opened state can be widely used.

  According to this configuration, it is possible to detect whether the mobile phone is in a folded state or an opened state by the detection means, and a call is started or opened in the folded state. It is possible to control the receiving unit, the transmitting unit, and the like more finely depending on whether the call is started.

  In the above configuration, a transmitter / receiver key operation unit is provided on the outer surface side and / or the side surface of the upper housing and / or the lower housing with the cellular phone folded. be able to.

  According to this configuration, it is possible not only to receive the cellular phone in the folded state but also to make a call in the folded state.

  According to the present invention, it is a foldable mobile phone that can be sent and received in a folded state, and can make a call without deteriorating the quality of the transmitted and received voices in both the folded state and the opened state. A foldable mobile phone can be provided.

  In addition, according to the present invention, there is provided a foldable mobile phone that allows a person who is not in a call to hear the contents of a call without using a special device when the foldable mobile phone is used in an open state. Can do.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1A is a perspective view of an example of a folding mobile phone according to the present invention in an opened state, and FIG. 1B is a perspective view of the mobile phone shown in FIG. 1A in a folded state.

  A foldable mobile phone A1 shown in FIGS. 1A and 1B includes an upper casing 1, a lower casing 2, and a hinge portion 3 that connects the upper casing 1 and the lower casing 2 in a foldable manner. have.

  The hinge portion 3 is formed by rotatably connecting an upper convex portion 31 projecting from the upper housing 1 and a lower convex portion 32 projecting from the lower housing 2 via a pin 33. Is. The upper convex portion 31 is integrally formed with the upper housing 1, and the lower convex portion 32 is integrally formed with the lower housing 2.

  The upper housing 1 is used for displaying a receiving unit 41 for outputting sound, personal information stored in the folding mobile phone A1 on the inner surface side 11, received e-mails, a telephone number of the other party, and the like. A first display unit 42 (but not limited to a liquid crystal display unit here) and a second display unit that is smaller than the first display unit 42 on the outer surface 12 and can display only necessary information. 43 and a second type of mobile phone which can be operated in a state in which the foldable mobile phone A1 is closed, and is configured with fewer input keys than the first key input unit 51 provided in the lower casing 2 described later. And a side call key 45 for starting / ending a call on the side.

  The second input key 44 includes an upward scroll key 441 for moving the cursor shown on the second display unit 43 upward, a downward scroll key 442 for moving downward, and both upper and lower scroll keys 441 and 442. And a determination key 443 for determining a character, a telephone number, etc., selected by the cursor moved at.

  The lower housing 2 includes a first key input unit 51 for inputting a telephone number, an e-mail address, a text, and the like on the inner surface 21, voices uttered by the user, and the vicinity of the folding cellular phone A 1. And a transmitter 52 for transmitting sounds and the like.

  The first key input unit 51 starts a call with a numeric keypad 511 to which numbers “0” to “9” and “*” and “#” are assigned, and a power key 512 for switching power ON / OFF. The call key 513, the menu key 514 for displaying the functions built in the foldable mobile phone A1 on the first display unit 42, and the cursor displayed on the first display unit 42 are moved up, down, left and right. Cursor keys 515 that can be used, and a determination key 516 for determining characters, telephone numbers, and the like.

  In addition to the numbers and symbols described above, the ten key 511 is also assigned with characters such as hiragana, katakana, alphabetic characters, symbols, etc., and it is possible to input characters corresponding to each key by using a predetermined input method. is there.

  2A is a cross-sectional view of the cellular phone shown in FIG. 1, and FIG. 2B is a cross-sectional view of the cellular phone shown in FIG.

  As shown in FIGS. 2A and 2B, the receiver 41 includes a double-sided sound receiver 411 that can generate sound on both the inner surface 11 and the outer surface 12 of the upper housing 1. The inner small hole 412 and the outer small hole 413 are provided at positions where the receiver 411 faces. In addition, the transmission section 52 includes a microphone 521 that converts sound into an electrical signal, and a small transmission hole 522 is formed at a position facing the microphone 521 of the lower housing 2. A through hole 13 that penetrates the inner surface side 11 and the outer surface side 12 of the upper housing 1 is provided in a portion facing the microphone 521 of the transmitter 52 of the upper housing 1 in a state in which the foldable mobile phone A1 is folded. ing.

  As shown in FIG. 1, the foldable mobile phone A1 normally listens to the voice by touching the earpiece 41 provided in the upper housing 1 with the foldable mobile phone A1 opened. In addition, the voice is transmitted by speaking with the mouth close to the transmitter 52 provided in the lower housing 2.

  As shown in FIG. 1 (B) and FIG. 2 (B), the received voice from the receiver 41 can be heard from the outer small hole 413 of the upper housing 1 in a state where the foldable mobile phone A1 is folded, and The voice can be sent to the transmitter 52 through the through-hole 13. By making use of this, with the foldable mobile phone A1 closed, a call can be made by placing the outer small hole 413 on the outer surface side 12 of the upper housing 1 on the ear and bringing the mouth close to the through hole 13.

  When a call is received with the foldable mobile phone A1 folded, a call can be started by pressing the side call key 45 provided on the side surface of the upper housing 1. Further, when making a call to the other party using the foldable mobile phone A1 in the folded state, the other party is limited to those previously recorded in the memory of the foldable mobile phone A1. Select the other party who wants to talk from the other party recorded in the memory of the foldable mobile phone A1 and displayed on the second display unit 43 by operating the up scroll key 441 and / or the down scroll key 442. The determination key 443 is used for determination. Then, it is possible to make a call by pressing the side call key 45.

  Further, if a list of numbers is displayed on the second display unit 43 so that numbers can be selected, it is possible to make a call by inputting a phone number even when the folding mobile phone A1 is folded.

  The foldable mobile phone A1 has a receiver 41 attached to the upper housing 1 and a transmitter 52 attached to the lower housing 2. When making a call with the foldable mobile phone A1 open, It is possible to talk in a state where it is separated from the transmitter unit 52. When the receiver unit 41 is put on the ear, the transmitter unit 52 is arranged near the mouth.

  Further, since the receiver 41 and the transmitter 52 are separately attached to the upper housing 1 and the lower housing 2, sound pressure interference from the receiver 41 to the transmitter 52 can be reduced. That is, it is possible to reduce the occurrence of unpleasant phenomena such as echoes and howling due to the sound pressure of the voice uttered from the receiver 411 of the receiver 41 acting on the microphone 521 of the transmitter 52, and accordingly, It is possible to talk with sound quality.

  A voice processing IC (integrated circuit) (not shown) is installed in the lower housing 2 and the signal circuit from the transmitter 52 to the voice processing IC is shortened, so that it is difficult to pick up noise. It also has an effect.

  FIG. 3 is a schematic sectional view showing another example of the cellular phone according to the present invention in a folded state.

  In the folding cellular phone A2 shown in FIG. 3, the receiver 61 of the receiver 6 is not a double-sided sounding type receiver, but a normal single-sided sounding type receiver is independently attached to the inner surface side 611 and the outer surface side 612. Other parts are the same as those of the folding mobile phone A1 shown in FIG. 2, and substantially the same parts are denoted by the same reference numerals.

  The foldable mobile phone A2 is provided with a sensor that detects whether the upper housing 1 and the lower housing 2 are closed or open (not shown). When a call is started in a state where the sensor detects that the foldable mobile phone A2 is closed, the outer surface side receiver 612 generates a sound. Further, when a call is started in a state where it is detected that the foldable mobile phone A2 is in an open state, the inner side receiver 611 generates a sound.

  When the foldable mobile phone A2 is in an opened state, the outer surface side receiver 612 may generate sound in response to a user request. In this way, a nearby person can hear the received voice by bringing his ear close to the outer small hole 413 of the receiver 6. Furthermore, it is desirable that the volume of the inner receiver 611 and the outer receiver 612 can be independently operated according to the user's request and / or automatically.

  FIG. 4 shows a schematic sectional view of still another example of the cellular phone according to the present invention in a folded state.

  A foldable mobile phone A3 shown in FIG. 4 uses a speaker Sp for outputting a voice to notify an incoming call instead of the outer surface side receiver 612 of the foldable mobile phone A2, and the other portions are foldable mobile phones. It is the same structure as A2, and the same code | symbol is attached | subjected to the substantially same part.

  The foldable mobile phone A3 is provided with an earpiece 7 on the inner surface 11 of the upper housing 1 and a speaker Sp at a position corresponding to the earpiece 12 on the outer surface 12. The speaker Sp informs the user that the foldable mobile phone A3 is receiving a call or mail by sounding the sound, and the sound that the foldable mobile phone A3 produces when receiving an incoming call It is large so that the user can be notified of an incoming call even if the situation is somewhat noisy.

  When the foldable mobile phone A3 is in a closed state, the speaker Sp is used as a substitute for the receiver 71 of the receiver 7. The foldable mobile phone A3 includes a sensor that detects whether the upper housing 1 and the lower housing 2 are opened or folded, and the sensor detects the state in which the foldable mobile phone A3 is opened. Even if the closed state is detected, the volume of the sound produced from the speaker Sp at the time of the incoming call is a normal volume.

  When the user operates the call key 513 and receives a call with the user open, the speaker Sp stops sounding and a sound is produced from the receiver 71 of the receiver 7. When the side call key 45 is operated in the closed state and a call is received, a call voice is generated from the speaker Sp, and the volume of the sound to be generated is as large as the volume of the sound generated by the receiver 71. Adjust so that The volume of the sound generated from the speaker Sp when a call is made with the foldable mobile phone A3 closed is adjusted to an arbitrary volume by the user. Similarly, when making a call with the foldable mobile phone A3 closed, the volume of the speaker Sp is adjusted to the same level as the volume of the receiver 71.

  FIG. 5 shows a sectional view of still another example of the foldable mobile phone according to the present invention in a folded state.

  The foldable mobile phone A4 shown in FIG. 5 is in a state where the second transmitter 82, the upper casing 1 ′, and the lower casing 2 are closed or opened at a portion near the hinge section 3 of the upper casing 1. And a sensor for detecting whether or not The upper housing 1 'does not include a through hole, but the other portions have the same configuration as the folding mobile phone A1, and substantially the same portions are denoted by the same reference numerals.

  When a call is made using the mobile phone A3, the call is made by sending a voice to the first transmitter 81 provided on the inner surface side of the lower housing 2 in the same manner as the folding mobile phone A1. I do. When a call is made in a folded state, the call is made by sending voice to the second transmitter 82 provided on the outer surface 12 'of the upper housing 1'. At this time, the function of the first transmitter 81 provided in the lower housing 2 is stopped.

  With this configuration, it is possible to transmit the voice such as the user's voice more clearly to the other party. Further, it is not necessary to place the first transmitter 81 of the lower housing 2 in the same position as the folding mobile phone A4 shown in FIG. 5, and the receiver 4 provided in the upper housing 1 ′ in an open state. It is possible to arrange the transmitter 81 in a portion close to the mouth of the lower housing 2 when is placed on the ear. As a result, it is possible to make a call with higher quality voice in an open state.

  The foldable mobile phone A4 employs a double-sided sounding type receiver 41 as the receiver 4; however, as with the foldable mobile phone A2, a foldable mobile phone A4 that has independent receivers on the inner surface side and the outer surface side, As used in the portable cellular phone A3, a receiver may be used on the inner surface side and a speaker may be used on the outer surface side instead of a speaker.

Fig. (A) is a perspective view of an example of a folding mobile phone according to the present invention in an open state, and Fig. (B) is a perspective view of the folding mobile phone shown in Fig. (A) in a folded state. 1A is a cross-sectional view of the folding mobile phone shown in FIG. 1 in an open state, and FIG. 1B is a cross-sectional view of the folding mobile phone shown in FIG. 1A in a folded state. It is sectional drawing of the folded state of the other example of the foldable mobile telephone concerning this invention. It is sectional drawing of the folded state of the further another example of the foldable mobile telephone concerning this invention. It is sectional drawing of the folded state of the further another example of the foldable mobile telephone concerning this invention. It is sectional drawing of the folded state of an example of the conventional foldable mobile telephone. It is sectional drawing of the folded state of the other example of the conventional foldable mobile telephone.

Explanation of symbols

A1, A2, A3, A4 Foldable mobile phone 1, 1 'Upper casing 11 Inner surface side 12 Outer surface side 13 Through hole 2 Lower casing 21 Inner surface side 3 Hinge portion 41 Earpiece portion 411 Receiver 412 Inner small hole 413 Outside small size Hole 42 First display section 43 Second display section 44 Second key input section 441 Up scroll key 442 Down scroll key 443 Enter key 45 Side call key 51 First key input section 511 Numeric keypad 512 Power key 513 Call key 514 Menu key 515 Cursor key 516 Enter key 52 Transmitting section 6 Reception section 61 Receiver 611 Inner surface side receiver 612 Outer surface side receiver 7 Receiver section 71 Receiver 81 First transmitting section 82 Second transmitting section

Claims (8)

A foldable mobile phone having a hinge part that foldably connects the upper casing, the lower casing, and the upper casing and the lower casing,
The upper housing includes a display unit and a receiving unit for receiving voice,
The lower cellular phone includes a key operation unit and a transmission unit for transmitting voice.   2. The folding type according to claim 1, wherein the upper housing has a through hole at a position facing a speech transmitting portion provided in the lower housing in a state in which the mobile phone is folded. Mobile phone. The lower housing is provided with a first transmitter in a predetermined position on the inner surface side in a folded state,
2. The foldable mobile phone according to claim 1, wherein the upper housing includes a second transmitter in place of the through hole at a position close to a hinge on the outer surface side when the mobile phone is folded. Phone.   4. The foldable mobile phone according to claim 1, wherein the transmitter is provided with a double-sided sounding receiver.   4. The folding type according to claim 1, wherein the transmitter is provided with a single-sided sounding type receiver on each of the inner surface side and the outer surface side when the cellular phone is folded. 5. Mobile phone.   2. The receiver according to claim 1, wherein the receiver has a one-side sounding receiver on the inner surface side and a speaker at a position corresponding to the one-side sounding receiver on the outer surface side when the cellular phone is folded. The foldable mobile phone according to claim 2 or claim 3.   2. A detecting means for detecting whether the mobile phone is folded or opened in the upper casing and / or the lower casing. The foldable mobile phone according to claim 6.   The key operation unit for transmitting / receiving is provided on an outer surface side and / or a side surface portion of the upper housing and / or the lower housing in a state in which the cellular phone is folded. The folding mobile phone according to any one of claims 1 to 7.

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