JP2004208166A - Portable terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable telephone system for enabling a user to listen to speeches with a proper volume when the user uses an earphone to perform speech communication. <P>SOLUTION: In this portable telephone system, when the user pulls an earphone microphone 2 out of a cord winding part 3 in response to a ringing tone, a rotary encoder 4 and a cord pulling out and winding detecting part 5 detect that the earphone microphone 2 is pulled out, and an earphone use signal and an off-hook signal are transmitted to a control part 7. Since the control part 7 closes a speech communication circuit and sets a volume level to a reference level stored in a storing part 10 when the earphone is used, the user can perform speech communication with a comfortable volume. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a portable terminal device that winds a cord of an earphone or an earphone microphone so as to be able to be pulled out into an apparatus main body.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a mobile terminal device using an earphone, a mobile phone device configured so that an earphone cord can be wound around a reel in a device main body has been known (for example, see Patent Document 1). As shown in FIG. 5, the mobile phone device includes a microphone 111 for transmission on a mobile phone main body 110, and a receiving earphone 112 is connected to the mobile phone main body 110 via a cord 113. The mobile phone main body 110 has a built-in reel for winding the cord 113 of the earphone 112. When a call is not being performed, the cord 113 of the earphone 112 is wound on this reel, and the earphone 112 is stored in the mobile phone main body 110. It is supposed to be.
[0003]
A user using this mobile phone device holds the mobile phone main body 110 in his hand and puts the earphone 112 into the ear hole to make a call. When the earphone 112 is pulled out from the mobile phone main body 110, the cord 113 is pulled out from the reel, the detection switch that is in mechanical contact with the earphone 112 is turned on, and the mobile phone device is switched to the off-hook state. When the earphone 112 is wound into the mobile phone main body 110, the cord 113 is wound around the reel by pressing the cord winding operation lever. At this time, a detection switch interlocked with the cord winding operation lever is provided. The mobile phone is turned on, and the mobile phone device is switched to the on-hook state.
[0004]
Further, as another mobile phone device, a mobile phone device with a videophone that can perform a hands-free call using an earphone with a microphone is also known (for example, see Patent Document 2). In this type of mobile phone device, the mobile phone main body and the earphone microphone are separated, and when talking using the earphone microphone, it is necessary to insert the plug of the earphone microphone cord into the earphone jack of the mobile phone main body.
[0005]
[Patent Document 1]
JP-A-7-143214 [Patent Document 2]
JP-A-8-294030
[Problems to be solved by the invention]
However, in the above-described conventional mobile phone device, when listening with an earphone in a state where the volume is set to a large volume when listening with a speaker, the volume may be too loud and surprised, and the volume must be adjusted again. There was a problem.
[0007]
An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide a mobile phone device that can listen to a sound at an appropriate volume when talking using an earphone.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a portable terminal device of the present invention comprises: a cord winding means for winding a cord of an earphone or an earphone microphone so as to be able to be pulled out into a portable terminal main body; and a cord withdrawing means for detecting withdrawal or winding of the cord. And a control means for setting a volume level of the earphone to a predetermined level when the cord is detected to be pulled out. With this configuration, even when the volume level is set to a large level for a speaker, when the earphone is used, the volume is automatically adjusted to a level suitable for the earphone, so that a comfortable call is performed. be able to.
[0009]
Further, the portable terminal device of the present invention is characterized in that the code withdrawing and winding detecting means is a rotary encoder. With this configuration, it is possible to easily detect whether the cord has been pulled out or wound up.
[0010]
Further, the portable terminal device of the present invention includes a detection signal conversion unit that outputs an off-hook signal when the extraction of the code is detected, and outputs an on-hook signal when the winding of the code is detected. It is characterized by the following. With this configuration, off-hook and on-hook operations can be performed in conjunction with pulling out and winding the cord.
[0011]
Further, in the portable terminal device of the present invention, the detection signal conversion unit outputs an earphone use signal to the control unit when the withdrawal of the code is detected, and the control unit that receives the earphone use signal, A connection to a voice input / output circuit is switched from a speaker and a microphone fixed to the portable terminal body to the earphone and the microphone or the earphone microphone. With this configuration, it is possible to automatically switch to the earphone to be used in conjunction with the withdrawal of the cord.
[0012]
Further, the portable terminal device of the present invention includes an imaging camera and a video signal processing unit in the mobile terminal body, and the control unit is configured to control the imaging camera and the video signal processing unit when the extraction of the code is detected. Is activated. With this configuration, it is possible to make a comfortable call using the earphones while extending the arm, projecting his / her own face, and watching the display screen.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 shows the configuration of the mobile phone device according to the first embodiment of the present invention. In FIG. 1, a cord winding unit 3 for arbitrarily winding or unwinding a cord of an earphone microphone 2, a rotary encoder 4 for detecting a rotation operation of the cord winding unit 3, and a rotary A code withdrawal winding detection unit 5 for detecting withdrawal or winding of the earphone microphone code from an output signal of the encoder 4, and a detection signal of the code withdrawal winding detection unit 5 is converted into an earphone microphone use signal and an on-hook signal or an off-hook signal. A control unit 7 including a detection signal conversion unit 6, a voice input / output circuit, and controlling the entire mobile phone main body 1, a mobile phone wireless unit 8 including a high-frequency transmission / reception circuit, an antenna 9 also used for transmission and reception, and input setting A storage unit 10 for storing information, various programs, a volume level reference value when using earphones, etc., and a numeric keypad and function setting buttons. An operation input unit 11 which includes characters and graphics, a liquid crystal display unit 12 for displaying images and the like, a speaker 13 and the microphone 14 secured to the main body of the cellular phone 1.
[0014]
FIG. 2 shows the relationship among the earphone microphone 2, the cord winding unit 3, and the rotary encoder 4. The earphone microphone 2 has an earphone 2a and a microphone 2b connected by an earphone microphone cord 2c which is a multi-core cable. The earphone microphone cord 2c is wound around a cord reel 3a of the cord winding unit 3, and an end thereof is pulled out from the cord reel 3a and is connected to the control unit 7 in FIG. The cord reel 3a has a wire inside, and when the cord is pulled out, the wire is wound and the rotational energy is stored, and the drawn position is locked, and when the cord is further pulled out of the state, the lock is released and stored. The cord is automatically wound around the cord reel 3a by the rotational energy. A rotary encoder 4 is attached to the rotation shaft 3b of the code reel 3a, and the resistance value of a circuit inside the rotary encoder 4 changes according to the rotation angle, so that the rotation direction can be recognized.
[0015]
Next, the operation of the first embodiment will be described. In FIG. 1, when the mobile phone wireless unit 8 detects an incoming call based on an incoming signal received from the antenna 9 in the mobile phone body 1 in a standby state, the control unit 7 outputs a ringing tone, and the user plugs the earphone microphone 2 into a cord. Pull out from the winding unit 3. By this operation, the rotary encoder 4 rotates in a predetermined direction, and the code withdrawing / detecting unit 5 detects the cord withdrawal based on the signal, and the detection signal conversion unit 6 converts the earphone microphone use signal and the off-hook signal into the call control unit. 7, the control unit 7 closes the communication circuit, switches the voice input / output circuit from the connection of the speaker 13 and the microphone 14 to the connection to the earphone microphone 2, and enables the communication by the earphone microphone 2. At that time, the control unit 7 extracts the earphone volume level reference value stored in the storage unit 10 and sets the volume level of the audio output circuit to that value. When the call ends, the user slightly pulls the earphone microphone code 2c, so that the earphone microphone code 2c is automatically wound around the cord winding unit 3. By this operation, the rotary encoder 4 rotates in a predetermined direction, and the code pull-up / wind detecting unit 5 detects the winding of the code based on the signal, and the detection signal converting unit 6 sends an on-hook signal to the control unit 7, The control unit 7 opens a communication circuit, switches the voice input / output circuit from the earphone microphone 2 to the speaker 13 and the microphone 14, and shifts to a standby state.
[0016]
As described above, according to the first embodiment, when the user pulls out earphone microphone 2 from cord winding unit 3 due to a ringing tone, pulling out of earphone microphone 2 is detected by rotary encoder 4 and code pulling winding detection unit 5. Then, an earphone use signal and an off-hook signal are sent to the control unit 7, and the control unit 7 closes the communication circuit and sets the volume level to the reference level when the earphone stored in the storage unit 10 is used. , The user can make a call at a comfortable volume.
[0017]
(Embodiment 2)
Next, a second embodiment of the present invention will be described. FIG. 3 shows a configuration of the mobile phone device according to the second embodiment. The mobile phone main body 21 has a configuration in which a CCD camera 15 and a video signal processing unit 16 are added to the configuration shown in FIG. 1, and accordingly, the control method in the control unit 22 is slightly different. Other configurations are the same as those of the first embodiment, and thus the same components are denoted by the same reference numerals, and redundant description will be omitted. The CCD camera 14 is provided on an upper front surface of the housing 23 as shown in FIG. In addition, a speaker 13, a liquid crystal display unit 12, an operation input unit 11, a microphone 14, and the like are arranged on the front surface of the housing 23. The earphone microphone 2 is pulled out from the side surface of the housing 23.
[0018]
Next, an operation according to the second embodiment will be described. Since the call operation using the earphone microphone 2 is the same as in the first embodiment, the videophone operation will be described here. First, when the line with the other party is connected, the user pulls out the earphone microphone 2 from the housing 23, puts the earphone into the ear hole, brings the microphone close to the mouth, and presses the camera button from the operation input unit 11. As a result, the control unit 22 activates the video signal processing unit 16 and the CCD camera 15, so that the user reaches the hand holding the mobile phone main body 21, points the CCD camera 15 toward himself, and displays the video on the liquid crystal display. A call is made with the other party while checking in the section 12. When the call is finished, by pressing the camera button again, the control unit 7 turns off the video signal processing unit 16 and the CCD camera 15, winds up the earphone microphone 2, opens the call circuit, and activates the voice input / output circuit. Is switched from the earphone microphone 2 to the speaker 13 and the microphone 14, and the state shifts to a standby state.
[0019]
As described above, according to the second embodiment, the mobile phone main body 21 is provided with the CCD camera 15 and the video signal processing unit 16, and a videophone is possible. When using the videophone, the arm holding the mobile phone main body 21 is extended, and the user talks with the CCD camera 15 facing himself, so that the use of the earphone microphone 2 is fully utilized.
[0020]
In each of the above embodiments, the earphone microphone 2 is used. However, the earphone alone can be used. In that case, the earphone and the microphone 14 provided in the mobile phone body are used, and the control unit is used. When detecting that the earphone cord has been pulled out, the control of switching the connection to the voice input / output circuit from the speaker 13 and the microphone 14 to the earphone and the microphone 14 is performed. In addition, both the earphone and the earphone microphone can be configured to be usable. In this case, by setting whether to use the earphone or the earphone microphone from the operation input unit 11, the control units 7, 22 can be used. Can determine which one is used.
[0021]
Further, in each of the above embodiments, the portable terminal device of the present invention is described as a portable telephone device, but the present invention can be applied to other portable terminal devices such as a portable wireless device and a PDA.
[0022]
【The invention's effect】
As described above, the portable terminal device of the present invention includes a cord rewinding unit that rewinds the cord of the earphone or the earphone microphone into the portable terminal body so as to be able to be pulled out, and a cord withdrawal rewind that detects the cord withdrawal or retraction. Since the detection means and the control means for setting the volume level of the earphone to a predetermined level when the cord withdrawal is detected, the volume level is set to a large level for the speaker. Even when the earphone is used, the volume is automatically adjusted to a level suitable for the earphone, and a comfortable call can be made.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a mobile phone device according to a first embodiment of the present invention. FIG. 2 is a plan view illustrating a configuration of a cord winding unit according to the first embodiment of the present invention. FIG. 4 is a block diagram illustrating a configuration of a mobile phone device according to a second embodiment; FIG. 4 is a perspective view illustrating the entire mobile phone device according to the second embodiment of the present invention; FIG. Figure [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mobile phone main body 2 Earphone microphone 2a Earphone 2b Microphone 2c Earphone microphone code 3 Code take-up part 4 Rotary encoder 5 Code take-out take-up detection part 6 Detection signal conversion part 7 Control part 8 Mobile phone radio part 9 Antenna 10 Storage part 11 Operation Input unit 12 Liquid crystal display unit 13 Speaker 14 Microphone 15 CCD camera 16 Video signal processing unit 21 Mobile phone body 22 Control unit 23 Housing

Claims (5)

A cord rewinding means for removably rewinding the cord of the earphone or the earphone microphone into the main body of the portable terminal, a cord withdrawing rewind detecting means for detecting the retraction or retraction of the cord, and a case where the withdrawal of the cord is detected And a control unit for setting a volume level of the earphone to a predetermined level. 2. The portable terminal device according to claim 1, wherein said code withdrawing and winding detecting means is a rotary encoder. 2. A detection signal conversion means for outputting an off-hook signal when the extraction of the code is detected and outputting an on-hook signal when the winding of the code is detected. Item 3. The mobile terminal device according to Item 2. The detection signal conversion unit outputs an earphone use signal to the control unit when the cord withdrawal is detected. 4. The portable terminal device according to claim 1, wherein a switch is made from a speaker and a microphone fixed to the terminal body to the earphone and the microphone or the earphone microphone. The mobile terminal body further includes an imaging camera and a video signal processing unit, and the control unit activates the imaging camera and the video signal processing unit when the extraction of the code is detected. The mobile terminal device according to claim 1.

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