JP2967006B2 - Automatic transmission / reception method for a system in which a terminal device is connected to the earphone microphone terminal of a mobile communication device and automatic transmission / reception method for a mobile communication device using an earphone microphone - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earphone microphone terminal provided in a mobile communication device such as a car phone or a mobile phone.
The present invention relates to an automatic transmission / reception method in a system in which terminal devices such as a fax machine and a personal computer are connected, and an automatic transmission / reception method for a mobile communication device using an earphone microphone.

[0002]

2. Description of the Related Art With the development of communication equipment and its circuit technology and the development of laws and regulations concerning communication, wireless telephone systems such as car telephones and mobile telephones have been rapidly expanding in recent years. In conjunction with this, fax and personal computer communications are also being carried out. Currently, a handy phone used is provided with an earphone microphone terminal in consideration of a case where a normal speaker and a microphone cannot be used due to conditions such as a use environment.

FIG. 7 is a schematic diagram showing a connection configuration of an earphone microphone portion of a conventional handy phone. The earphone microphone plug 33 is a three-pin terminal for receiving a signal for the earphone 35, transmitting a signal for the microphone 36, and GND, and is configured to be attached to the earphone microphone terminal 34 of the handy phone. A receiving circuit is connected to the earphone microphone terminal 34 via an amplifier 40, a capacitor 41 and a resistor 42, and a transmitting circuit is connected via a capacitor 37, a resistor 38 and an amplifier 39, respectively.

FIG. 8 is a circuit diagram showing a configuration of a conventional handy phone. The control circuit 5 based on the operation signal of the operation unit 57
6 controls the demodulation circuit 47 and the modulation circuit 54. The radio wave received via the antenna 45 is amplified by a receiving circuit 46 and then demodulated into an audio signal by a demodulating circuit 47. The audio signal is amplified by the amplifier 48 and output from the speaker 49. On the other hand, the audio signal input to the microphone 51 is appropriately amplified by the amplifier 53, modulated by the modulation circuit 54, and transmitted through the transmission circuit 55. Earphone microphone terminal 5
When the earphone microphone plug is inserted into the microphone 0, the transmitting side and the receiving side terminals of the earphone microphone plug are connected to the input side of the speaker 49 and the output side of the microphone 51, so that a telephone call with the earphone microphone is possible.

[0005] There is an increasing demand for connecting a terminal device such as a facsimile to the earphone microphone terminal for communication. However, since only audio signals can be transmitted and received, communication with the terminal device is only manual operation. . For example, taking the case of manually transmitting a call as an example, the operation procedure is as follows. (1) Enter the destination telephone number into the mobile communication device. (2) Press the call button of the mobile communication device. (3) Check the reception sound of the terminal device such as the other party's fax. (4) Connect a terminal device such as a facsimile to the earphone microphone terminal of the mobile communication device. If a terminal device such as a facsimile is connected in advance, the reception sound of the terminal device such as a partner facsimile cannot be confirmed. (5) Press down the send button on the terminal device such as the fax. When transmitting and receiving in this way, it was necessary to perform a complicated operation.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem, and to provide a system capable of automatically transmitting and receiving a system in which a terminal device such as a facsimile is connected to an earphone microphone terminal of a mobile communication device. . It is another object of the present invention to provide an automatic calling / receiving system in which an earphone / microphone is connected to an earphone / microphone terminal of a mobile communication device to make and receive a call from the earphone / microphone.

[0007]

According to the present invention, there is provided an automatic transmission / reception system according to the present invention, wherein an input terminal of a demodulation circuit of a terminal device is connected to ground directly or via a low resistance. Providing a switch for connection and providing an incoming signal detection circuit for detecting an incoming signal,
Further, the terminal device, an operation unit for making a call, when the operation unit is operated, comprising a terminal device control means for turning on the switch at a certain time or at a certain interval,
The mobile communication device includes an incoming signal generation circuit connected to the earphone side of the earphone microphone terminal, a control for generating an incoming signal from the incoming signal generating circuit when an incoming call is received from a line, and a receiving operation when receiving a response detection signal. Mobile communication device control means for performing control of starting and control of transmission start when the earphone side detects that the earphone side has become low level for a fixed time or a fixed interval, and the terminal device is connected to an earphone microphone terminal of the mobile communication device. while connected, by operating the operation unit of the terminal device, wherein the switch originating activates the mobile communication device to the earphone side of the earphone microphone terminal to a low level through, when there is an incoming call from the line, before
The terminal device transmits a response detection signal by detecting an incoming signal transmitted by the mobile communication device by the incoming signal detection circuit and turning on the switch, and the mobile communication device
The receiving signal generating circuit is stopped and the receiving operation is started. Further, the present invention provides a first switch for connecting the input terminal side to the ground directly or via a low resistance on the input terminal side of the demodulation circuit of the terminal device, and also provides an incoming signal for detecting an incoming signal. A signal detection circuit is provided, a second switch for connecting the output terminal side to the ground directly or via a low resistance is provided on the output terminal side of the modulation circuit of the terminal device, and further, a signal is transmitted to the terminal device. And an operation unit for operating the second switch when the operation unit is operated for a predetermined period of time or at a predetermined interval. Connected incoming signal generating circuit, control for generating an incoming signal from the incoming signal generating circuit when there is an incoming call from the line, and control and microphone for starting a receiving operation when receiving a response detection signal Comprises a mobile communication device control means for activating a call when it detects that it has become low level for a certain time or at a certain interval, and wherein the terminal device is connected to an earphone microphone terminal of the mobile communication device, By operating the operation unit of the device, the microphone side of the earphone microphone terminal is set to a low level through the second switch to start the transmission of the mobile communication device.
The mobile communication device detects an incoming signal transmitted by the mobile communication device by the incoming signal detection circuit and turns on the first switch, thereby transmitting a response detection signal.
The receiving signal generation circuit is stopped and the receiving operation is started. 2. The earphone microphone of a mobile communication device according to claim 1, further comprising: a switch on the earphone side of the earphone microphone that is turned on to turn the earphone to a low level. The earphone microphone is connected to a terminal, and the mobile communication device is configured to make and receive a call by turning on the switch. The present invention also provides a switch on the microphone side of the earphone microphone to turn on the microphone side to a low level by performing an on operation, and connects the earphone microphone to an earphone microphone terminal of the mobile communication device according to claim 2, The mobile communication device is configured to make and receive a call by turning on the switch.

[0008]

According to the above configuration, a system in which a terminal device such as a facsimile is connected to the earphone microphone terminal of the mobile communication device can be automatically transmitted and received. In addition, the user can make and receive calls at hand without operating the mobile communication device by using the earphone microphone connected to the earphone microphone terminal.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a diagram showing a system configuration employing an automatic calling / receiving method according to the present invention, and is a perspective view showing a state in which a handy phone and a fax terminal are connected. The earphone microphone plug of the facsimile terminal 2 is connected to the earphone microphone terminal 3 of the handy phone 1. In this state, the power of the fax terminal 2 is turned on, and the transmission button 18 of the operation unit 18 is turned on.
When "a" is pressed, the transmission function of the handy phone 1 is automatically activated. Further, in the standby state, if there is an incoming call to the handy phone 1 from the line, the fax terminal 2 automatically enters the receivable state.

FIG. 2 is a circuit block diagram showing an embodiment of an automatic transmission / reception system of the system according to the present invention. The upper part of FIG. 2 shows the configuration of the handy phone 1, and the lower part of FIG. 2 shows the configuration of the facsimile terminal 2. An earphone-side terminal 3 a of the earphone microphone terminal 3 is connected to an input terminal 5 a of the speaker 5 via a capacitor 6. The microphone-side terminal 3b is connected to the output terminal 8a of the microphone 8 via the capacitor 7.

The control circuit 11 controls the handy phone 1 in a centralized manner, and makes outgoing calls to the line, outgoing telephone numbers,
Performs call, disconnect, hold, and incoming call control. The incoming signal generating circuit 10 outputs an incoming signal under the control of the control circuit 11, and the output is connected to the earphone side of the earphone microphone terminal 3. The earphone side of the earphone microphone terminal 3 is connected to the control circuit 11 for detecting a response. When an incoming call is received from a wireless line, the control circuit 11
The transistor Q constituting 0 is controlled from ON to OFF to ON. Further, when the earphone side of the earphone microphone terminal changes from H to L, the change is detected to control the transmission start. The memory circuit 12 has a push button 1a (see FIG. 1).
The other party's telephone number is temporarily stored. The temporarily stored partner's telephone number is read out under the instruction of the control circuit 11 and sent out to the line.

Next, the configuration of the fax terminal will be described.
The fax terminal 2 has an operation unit 18 including buttons for transmitting and receiving and a call button 18a.
Is provided on the panel. Information on pressing each button of the operation unit 18 is input to the control unit 17. The controller 17 controls the facsimile terminal 2 as a whole. When data is transmitted, the driver 21 operates to read a document (not shown) by the reading unit 20 and sends the read data to the modulation circuit 22. When data is received, the received information is hard-copied by the printing unit 19. When the transmission button 18a of the operation unit 18 is further depressed, the relay circuit in the incoming signal detection circuit 13 is operated to close a relay contact (switch) 26 connected to the ground via the coil L for a predetermined time. The fax terminal 2 has an earphone microphone plug 29 for connecting to the handy phone 1 in addition to a telephone line terminal 27 for connecting to a telephone line. The earphone side of the earphone microphone plug 27, that is, the receiving side, is connected to the demodulation circuit 16 via the capacitor 14 and the amplifier 15. The received data demodulated by the demodulation circuit 16 is input to the control unit 17. The incoming signal detection circuit 13 is connected to the earphone side of the earphone microphone plug 29 and detects an incoming signal. When an incoming signal is detected, the relay circuit is operated to close the relay contact 26.

On the other hand, data at the time of transmission is modulated by a modulation circuit 22 and amplified by an amplifier 23 to an appropriate level. Then, the modulation signal of the amplifier 23 is output to the microphone side of the earphone microphone plug 29 via the capacitor 24. The telephone line terminal 27 is connected to the input side of the amplifier 15 and the output side of the amplifier 23 via the relay contact 25 and the transformer 28. The fax terminal 2 is connected to a telephone line terminal 37 when performing normal fax communication instead of fax communication using the handy phone 1.

Next, an automatic transmission operation and an automatic reception operation from the fax terminal will be described. First, the other party's telephone number is input to the memory circuit 12 by the push button 1a of the handy phone 1. When the transmission button 18a of the facsimile terminal 2 is depressed, the control unit 17 receives the information and activates the relay circuit in the incoming signal detection circuit 13 to turn on the relay contact 26 for a predetermined time. As a result, the earphone side of the earphone microphone becomes low level, and the control circuit 11 of the handyphone 1 detects the change and activates the transmission. After starting the transmission, the control circuit 11 reads out the other party's telephone number in the memory circuit 12 and sends it out to the line. If there is an incoming call from the line, the control circuit 11 generates an incoming signal by controlling the transistor Q of the incoming signal generating circuit 10 from ON to OFF to ON. When the incoming signal detection circuit 13 of the fax terminal 2 detects the incoming signal, it activates the relay circuit to turn on the relay contact 26. Switch 2
5 is also closed at the same time, but since no line is connected to the telephone line terminal 27, the earphone microphone side is not affected by this. Thereby, the earphone side of the earphone microphone terminal 3 is grounded via the coil L, and the potential of the portion A of the handyphone 1 is lowered. The control circuit 11 detects the response signal based on the potential drop of the portion A, stops the operation of the incoming signal generation circuit 10, and prepares for reception of the fax signal. On the other hand, the facsimile terminal 2 also receives the detection signal from the incoming signal detection circuit 13, activates the driving unit 21 and the printing unit 19, and prepares for reception. Thereafter, reception is started.

FIG. 3 is a circuit block diagram showing another embodiment of the automatic transmission / reception system of the system according to the present invention. This figure shows an example in which a relay contact for transmission is provided not on the earphone side (the embodiment in FIG. 2) but on the microphone side. The upper part of FIG. 3 shows the configuration of the handy phone 1, and the lower part of FIG. 3 shows the configuration of the facsimile terminal 2. Circuit portions denoted by the same reference numerals as in FIG. 2 have the same configuration.

The control circuit 36 controls the handy phone 1 in a centralized manner, and makes outgoing calls to the line, outgoing telephone numbers,
Performs call, disconnect, hold, and incoming call control. The incoming signal generation circuit 35 outputs an incoming signal under the control of the control circuit 36, and the output is connected to the earphone side of the earphone microphone terminal 3. The earphone side of the earphone microphone terminal 3 is connected to a control circuit 36 for detecting a response. When there is an incoming call from the wireless line, the control circuit 36 outputs the incoming signal
5 is controlled from ON to OFF to ON. The microphone side of the earphone microphone terminal is connected to a resistor 37.
And a power supply + B, and further connected to a control circuit 36 for detecting a transmission control signal. When the transmission control signal changes from H to L, the control circuit 36 detects the change and controls the transmission activation.

Next, the configuration of the fax terminal will be described.
Operation unit 18, control unit 17, drive unit 2 of fax terminal 2
1, reading unit 20, printing unit 19, demodulation circuit 16, amplifier 1
5, 23, capacitors 14, 24, telephone circuit terminal 2
7. The configurations of the changeover switch 25 and the transformer 28 are the same as those in FIG. A relay contact 39 for indicating a response to an incoming call is connected to the earphone side of the earphone microphone terminal.
Further, a relay contact 38 for indicating transmission is connected to the microphone side. When the transmission button 18a is depressed, the control unit 17 operates a relay circuit inside the relay button 18a to connect the relay to the ground via the coil L (switch).
38 is closed for a certain time.

In the case of automatic transmission, the other party's telephone number is stored in the memory circuit 1 by the push button 1a of the handy phone 1.
2 is input in advance. When the transmission button 18a of the facsimile terminal 2 is depressed, the control unit 17 activates a built-in relay circuit, and the relay contact 38 is turned on for a predetermined time. As a result, the microphone side of the earphone microphone becomes low level,
The control circuit 36 of the handy phone 1 detects a change on the microphone side and starts transmission. After starting the transmission, the control circuit 36 reads out the other party's telephone number in the memory circuit 12 and sends it out to the line.
When there is an incoming call from the line, the control circuit 36 generates an incoming signal by controlling the transistor Q of the incoming signal generating circuit 35 from ON to OFF to ON. When the incoming signal detection circuit 13 of the fax terminal 2 detects the incoming signal, it activates the relay circuit to turn on the relay contact 39. Thereby, the control circuit 36 detects the response signal, stops the operation of the incoming signal generation circuit 35, and prepares for reception of the fax signal.

FIG. 4 is a diagram showing an embodiment of a transmission / reception system for a mobile communication device using an earphone microphone terminal, and is a schematic diagram of an earphone microphone used in the mobile communication device of FIG. A DC capacitor 3 is connected to the earphone terminal side of the earphone microphone plug 44.
An outgoing / incoming call switch 30 is provided in parallel with 3. Calling and receiving operations when talking using an earphone microphone instead of the speaker 5 and the microphone 8 can be performed at hand. The outgoing / incoming operation turns on the outgoing / incoming switch 30.
It is preferable to insert a low resistance in series with the DC capacitor 33 in order to prevent generation of abnormal noise when the switch is operated.

FIG. 5 is a diagram showing another embodiment of a transmission / reception system of a mobile communication device using an earphone microphone terminal, and is a schematic diagram of an earphone microphone used in the mobile communication device of FIG. A transmission switch 41 is provided between the microphone terminal of the earphone microphone plug 40 and the GND terminal. When making a call using the earphone microphone, the operation at hand becomes possible by turning on the call switch 41. Incoming calls are made automatically. In addition, it is also possible to provide a switch on the earphone side and a switch on the microphone side, respectively, and use them as switches for reception and transmission. FIG. 6 is a perspective view showing the appearance of the earphone microphone of FIGS. 4 and 5. An earphone 31 or 42 is provided at the end of the cable of the earphone microphone, and the microphone 32 or 43 and the transmission / reception switch 30 are provided at an intermediate portion of the cable.
Alternatively, a transmission switch 41 is provided.

While the above description has been given of an example of a facsimile terminal as a terminal device connected to a mobile communication device, the present invention can be similarly applied to a personal computer terminal. In addition, although the example in which the incoming signal generated by the incoming signal generating circuit turns on the relay contact for a predetermined time has been described, the signal may be turned on at a fixed interval. In the case of an incoming call, after the fax terminal is connected, if the signal sent by the calling side is not valid as a fax signal, the switches 26 and 39 are operated to open, and the mobile communication device detects the response and communicates. Can be shut off. Furthermore, the embodiment has been described in which the destination telephone number at the time of automatic calling is previously input to the memory circuit of the mobile communication device, and is read out and transmitted. However, the destination telephone number can be transmitted by other methods. . For example, a dial pulse can be generated by turning on or off the relay contact 26 or 38, and the destination telephone number can be sent. In order to transmit the destination telephone number without using a dial pulse, an FSK signal generator is provided on the terminal side and an FSK signal detection circuit is provided on the mobile communication side, and the relay contact 26 or 38 is turned on to perform automatic transmission. This can be realized by transmitting and receiving the FSK signal after the activation. These automatic transmission / reception systems can be applied to a telemeter system for automatically transmitting data.

[0022]

As described above, according to the present invention,
Automatic transmission and automatic reception become possible in a system in which a terminal device is connected to an earphone microphone terminal of a mobile communication device. In addition, there is an effect that automatic transmission and reception from the earphone microphone of the mobile communication device become possible.

[Brief description of the drawings]

FIG. 1 is a diagram showing a system configuration employing an automatic calling / receiving method according to the present invention.

FIG. 2 is a circuit block diagram showing an embodiment of an automatic transmission / reception system of the system according to the present invention.

FIG. 3 is a circuit block diagram showing another embodiment of the automatic transmission / reception system of the system according to the present invention.

FIG. 4 is a diagram showing an embodiment of a transmission / reception method of a mobile communication device using an earphone microphone terminal, and is a schematic diagram of an earphone microphone with a transmission / reception switch.

FIG. 5 is a diagram showing another embodiment of a transmission / reception system of a mobile communication device using an earphone microphone terminal, and is a schematic diagram of an earphone microphone provided with a transmission switch on the microphone side.

FIG. 6 is a perspective view showing an appearance of the earphone microphone shown in FIGS. 4 and 5;

FIG. 7 is a schematic diagram illustrating a configuration of an earphone microphone connection unit of a conventional handy phone.

FIG. 8 is a circuit diagram showing an example of a circuit of a conventional mobile communication device.

[Description of Signs] 1 Handy phone 2 Fax terminal 3 Earphone microphone terminal 4, 9, 15, 23 Amplifier 5 Speaker 6, 7, 14, 24, 33 Capacitor 8, 32, 43 Microphone 37 Resistance 10 Incoming signal generation circuit 11 Control Circuit 12 Memory circuit 13 Incoming signal detection circuit 16 Demodulation circuit 17 Control unit 18 Operation unit 19 Printing unit 20 Reading unit 21 Drive unit 22 Modulation circuit 29, 40, 44 Earphone microphone plug 30 Outgoing / incoming switch 31, 42 Earphone 41 Outgoing switch

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-230662 (JP, A) JP-A-64-73968 (JP, A) JP-A-4-2522641 (JP, A) (58) Field (Int.Cl. ⁶ , DB name) H04Q 7/00-7/38

Claims (6)

(57) [Claims] An input signal side of a demodulation circuit of a terminal device is provided with a switch for connecting the input terminal side to the ground directly or via a low resistance, and an incoming signal detection circuit for detecting an incoming signal. The terminal device further comprises an operation unit for making a call, and terminal device control means for turning on the switch for a predetermined time or at a constant interval when the operation unit is operated. An incoming signal generating circuit connected to the earphone side of the earphone microphone terminal, control for generating an incoming signal from the incoming signal generating circuit when an incoming call is received from the line, and control for starting a receiving operation when receiving a response detection signal and the earphone The mobile communication device further comprises a mobile communication device control means for controlling transmission start when the low side detects a low level for a predetermined time or a predetermined interval. By operating the operation unit of the terminal device while the terminal device is connected to the earphone microphone terminal, the earphone side of the earphone microphone terminal is set to a low level through the switch, and the mobile communication device is transmitted and activated. The terminal device detects an incoming signal transmitted by the mobile communication device by the incoming signal detection circuit and turns on the switch, thereby receiving a response detection signal.
Signal, and the mobile communication device controls the incoming signal generation circuit.
An automatic transmission / reception system for a system in which a terminal device is connected to an earphone microphone terminal of a mobile communication device, wherein the terminal device is configured to stop and start a reception operation. 2. An incoming signal for detecting an incoming signal while providing a first switch on the input terminal side of the demodulation circuit of the terminal device for connecting the input terminal side to the ground directly or via a low resistance. A second detection circuit for connecting the output terminal side to the ground directly or through a low resistance to the output terminal side of the modulation circuit of the terminal device;
The terminal device further comprises: an operation unit for making a call to the terminal device; and terminal device control means for turning on the second switch for a predetermined time or at a predetermined interval when the operation unit is operated. An incoming signal generating circuit connected to the earphone side of the earphone microphone terminal, a control for generating an incoming signal from the incoming signal generating circuit when a call is received from the line, and a receiving operation when receiving a response detection signal; And a mobile communication device control means for starting transmission when the microphone side detects a low level at a certain time or at a certain interval, and connects the terminal device to an earphone microphone terminal of the mobile communication device. In this state, by operating the operation unit of the terminal device, the microphone side of the earphone microphone terminal is set to a low level through the second switch. The mobile communication device is transmitting startup, when there is an incoming call from the line, the said terminal by turning on the first switch by detecting an incoming signal by the mobile communication device is sent in the incoming signal detecting circuit, response
A detection signal is sent out, and the mobile communication device generates the incoming signal.
An automatic transmission / reception system for a system in which a communication device is connected to an earphone microphone terminal of a mobile communication device, wherein the communication device is configured to stop a circuit and start a reception operation. 3. The mobile communication device according to claim 1, wherein after the mobile communication device starts calling, the terminal device sends out the other party's telephone number information to the mobile communication device side by a dial pulse or an FSK signal. An automatic transmission / reception method for a system in which a communication device is connected to the earphone microphone terminal of a mobile communication device. 4. A switch for turning the earphone side to a low level by turning on the earphone microphone is provided on the earphone side of the earphone microphone, wherein the earphone microphone is connected to an earphone microphone terminal of the mobile communication device according to claim 1, An automatic transmission / reception method for a mobile communication device using an earphone microphone, wherein the mobile communication device is configured to transmit / receive a call by turning on a switch. 5. A switch for turning on the microphone side to a low level by turning on the microphone side of the earphone microphone, wherein the earphone microphone is connected to an earphone microphone terminal of the mobile communication device according to claim 2, An automatic transmission / reception method for a mobile communication device using an earphone microphone, wherein the mobile communication device is configured to transmit / receive a call by turning on a switch. 6. The mobile communication using the earphone microphone according to claim 4, wherein the earphone microphone is provided with an earphone at a tip of a cable, and the microphone and the switch are provided in a middle of the cable. Automatic call origination and termination method of the machine.