JPH05327844A - Portable telephone set and its earphone microphone - Google Patents

Abstract

PURPOSE:To improve the operability of the portable telephone set using the earphone microphone. CONSTITUTION:The portable telephone set is a telephone set in which a telephone set main body 10 and an earphone microphone 20 are separated and an earphone 21 of the earphone microphone 20 and a microphone 22 are connected to a telephone set main body 10 by a cord 23. A function control section 30 controlling remotely functions of the telephone set main body 10 is provided to the cord 23 of the earphone microphone 20. The telephone set main body 10 discriminates the operation of operation keys K1-K5 provided to the function control section 30 and implements the processing corresponding to the operated operation key according to the result of discrimination.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone and its earphone / microphone.

[0002]

2. Description of the Related Art As a portable telephone, for example, one having a form as shown in FIG. 4 has been considered. That is, this portable telephone includes a telephone body 10 and an earphone microphone 20.
It is divided into and. The telephone body 10 is provided with various circuits (not shown) for realizing a call, and a transmission / reception antenna 11, various function control keys such as a dial key Kd, a transmission key Ka, and an end key Kb. It is provided.

Although not shown, the telephone body 10 can be worn on the user's waist or held from the shoulder by a belt or the like.

Further, the earphone microphone 20 has an earphone 21 which functions as a receiver and a microphone 22 which functions as a transmitter, which are connected to the jack 12 of the telephone body 10 through a cord 23 and a plug 24 having an appropriate length.
Connected to. However, in this case, the earphone 21 is connected to the tip of the cord 23, and the microphone 22 appropriately collects the voice of the user in the middle of the cord 23, that is, when the user sets the earphone 21 in his ear. Such a position is provided, for example, at a position where the height is around the chin to the throat.

Then, when a call is made, the call key and the dial key Kd are pressed to make the call and dial, and when the call is made, the call is made by pressing the call key Ka. Further, by pressing the end key Kb, the call is ended.

Therefore, according to this portable telephone,
When the earphone 21 is set in the ear, it is not necessary to hold the handset during the call, and the call can be performed hands-free. Or, when there is an incoming call while walking,
An incoming call can be received by simply pressing the call key Ka, and the handset can be used more conveniently than a general portable telephone in which the handset is integrated in the telephone body.

[0007]

However, as described above, when the telephone body 10 is attached to the user's waist or hung from the shoulder, for example, when answering an incoming call, the telephone body 10 is Since it is necessary to manually operate the outgoing key Ka of No. 3, the usability is not good.

The present invention addresses such a point and intends to provide a portable telephone having improved operability.

[0009]

Therefore, in the present invention, when the reference numerals of the respective parts correspond to the embodiments described later, the telephone body 10 and the earphone microphone 20 are divided, and the earphone of the earphone microphone 20 is divided. 21 and the microphone 22 through the cord 23, the telephone body 10
In a mobile phone connected to the earphone microphone 2
The code 23 of 0 is provided with the function control unit 30 for remotely controlling the function of the telephone body 10. And the telephone body 10
Is for discriminating the operation of the operation keys K1 to K5 provided in the function control section 30 and performing a process corresponding to the operated operation key according to the discrimination result.

[0010]

The operation keys K1 to K5 are located at positions that are easy to operate even when the telephone body 10 is attached to the waist or hung from the shoulder. Then, the telephone body 10 can be remotely controlled through the operation keys K1 to K5. Therefore, the operability of the mobile phone is improved.

[0011]

1 shows an example of the appearance of a portable telephone according to the present invention, in which 10 is a telephone body, 20 is an earphone microphone, and 30 is a function controller.

The function control section 30 is used to remotely control the telephone body 10. The function control section 30 is formed into, for example, a flat box shape, and the cord 23 of the earphone microphone 20.
Of the microphone 22 and the plug 24, that is, when the user sets the earphone 21 in his ear,
It is provided at a position where it is easy for the user to see and operate, for example, at a portion at a height around the chest.

Further, the front face 30F of the function control unit 30
As the operation keys, a call key K1 and an end key K2, which are similar to those of the telephone body 10, are provided, and a mute key K3 and one-touch dial keys K4 and K5 are provided. Although not shown, a clip is provided on the back surface of the function control unit 30. With this clip, the function control unit 30 can be stopped in a chest pocket of a jacket, and when stopped, the telephone body The keys K1 to K5 of the function control section 30 can be easily operated even when the user wears the device 10 on his / her waist or from the shoulder.

FIG. 2 shows an example of a connection circuit for connecting the telephone body 10 to the earphone microphone 20, and FIG. 3 shows an example of the earphone microphone 20 and the function control section 30.

That is, in the earphone microphone 20 of FIG. 3, the plug 24 has four contacts as shown in FIG. 1, and the first hot contact 24A and the ground contact 2 are provided.
The earphone 21 is connected to the 4G. Further, in this example, when the electret condenser microphone is used as the microphone 22, the second hot contact 24B of the plug 24 and the contact 24
The source and drain of the FET (22Q) are connected to G, and the electret condenser microphone unit 22M is connected to the gate of the FET (22Q) and the contact 24G.

In the function controller 30, the diodes D1 to D5 are connected in series, and one end thereof is the plug 24.
Connected to the third hot contact 24C of the diode D1
The respective connection points of .about.D5 and the other end of the diode D5 are respectively connected to the contacts 24G through the keys (switches) K1 to K5. In addition, between the contact 24C and the contact 24G,
The resistor R30 is connected.

Further, in the telephone body 10 of FIG.
13 is a transmitting / receiving circuit, 13R is an output amplifier of the receiving system,
Reference numeral 13T is an input amplifier of the transmission system, and 14 is a microcomputer for system control. And this microcomputer 1
4, dial key Kd, call key Ka, end key Kb
Is connected, and various control signals or data are accessed with the transmission / reception circuit 13.

The jack 12 has four contacts corresponding to the plug 24, and the contacts 24A to 2A of the plug 24 are provided.
Contact points 12A to 12 respectively connected to 4C and 24G
It has C and 12G. And the first hot contact 1
2A is connected to the output terminal of the output amplifier 13R through the capacitor C11, the second hot contact 12B is connected to the input terminal of the input amplifier 13T through the capacitor C12, and is connected to the power supply line through the resistor R11.

Further, the third hot contact 12C of the jack 12 is connected to the power supply line through the resistor R12, and the voltage obtained at this contact 12C is supplied as an input signal to the microcomputer 14 through the A / D converter 15. To be done. Further, the ground contact 12G of the jack 12 is grounded. The power supply voltage VCC of the power supply line is, for example, 4.
It is 8-5V.

According to this structure, the keys Kd, K
When a and Kb are used, the same processing as in the conventional case is executed by the microcomputer 14, and it is possible to make an outgoing call, an incoming call, an end call, and the like.

During a call, a voice signal from the other party is taken out from the output amplifier 13R, and this voice signal is supplied to the earphone 21 through the signal line of the capacitor C11 → contact 12A → contact 24A → control unit 30.
In addition, the voice signal of the user is the microphone unit 2
The signal is supplied to the input amplifier 13T through the signal line of 2M → FET (22Q) → control unit 30 → contact 24B → contact 12B → capacitor C12. Therefore, the call can be made.

V12 is a DC voltage of the contact 12C, VF is a forward voltage drop of each of the diodes D1 to D5.

Then, when none of the keys K1 to K5 is pressed, V12 = VccR30 / (R12 + R30) (1)

When any one of the keys K1 to K5 is pressed (i = 1 to 5), the diodes D1 to Di cause V12 = iVF (2) Becomes

Then, in response to the operation of the keys K1 to K5,
The voltage V12 that changes as in the equations (1) and (2) is A / D converted by the A / D converter 15 and then supplied to the microcomputer 14. It is possible to determine whether or not K1 to K5 have been pressed, and if so, which key they are.

Then, according to the result of this judgment, the process corresponding to the pressed key Ki, for example, if the outgoing key K1 is pressed at the time of the incoming call, the process of the incoming call is carried out, and thereafter the call is continued. It can be carried out. Alternatively, muting or one-touch dialing can be performed.

Therefore, a hands-free call can be made, and when a key operation is required, the key operation can be easily performed by the key Ki of the function control unit 30.

In the above description, the earphone microphone 2
In 0, the earphone 21 and the microphone 22 are configured separately, but due to the headband made of an elastic material,
The earphone 21 may be brought into contact with the ear of the user, and the microphone 22 may be made to face the mouth of the user by a supporting member.

[0029]

According to the present invention, the earphone microphone 20
Since the function control unit 30 is provided in the middle of the cord 23, and the function of the telephone body 10 is remotely controlled by this function control unit 30, even when the telephone body 10 is worn on the waist or held from the shoulder, Various operations such as making a call, receiving a call, and ending a call can be performed by the function control unit 30 at hand, and operability is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing the appearance of an example of the present invention.

FIG. 2 is a connection diagram showing a part of an example of the present invention.

FIG. 3 is a connection diagram showing another portion of an example of the present invention.

FIG. 4 is a perspective view showing a conventional example.

[Explanation of symbols]

 10 Mobile Phone Main Body 12 Jack 13 Transmitter / Receiver Circuit 14 Microcomputer 15 A / D Converter 20 Earphone Microphone 21 Earphone 22 Microphone 24 Plug 30 Function Control Unit K1 to K5 Operation Keys

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Nobutaka Takao 6-735 Kitashinagawa, Shinagawa-ku, Tokyo Sony Corporation

Claims (4)

[Claims] 1. The earphone microphone of a portable telephone in which the main body of the telephone and the earphone microphone are divided, and the earphone and the microphone of the earphone microphone are connected to the main body of the telephone through a cord, in the middle of the cord, An earphone microphone having a function control unit for remotely controlling the functions of the above-mentioned telephone body. 2. The function control unit according to claim 1,
An earphone microphone having a key for remotely controlling call origination, call termination, and call termination of the telephone body. 3. The function control unit according to claim 1, wherein:
An earphone microphone having keys for remotely controlling at least call origination, call termination, call end, and one-touch dial of the telephone body. 4. A portable telephone in which a main body of a telephone and an earphone / microphone are divided and an earphone and a microphone of the earphone / microphone are connected to the main body of the telephone through a cord, and the function of the main body of the telephone is provided in the middle of the cord. The telephone main body determines the operation of the operation key provided in the function control unit, and performs a process corresponding to the operated operation key according to the determination result. Made mobile phone.