JPH01282930A - Facsimile communication system using automobile telephone set - Google Patents

Abstract

PURPOSE:To eliminate the need for the talking and line switching operation in case of facsimile communication by inputting a switching signal commanding whether talking or facsimile communication is applied in case of a calling and switching a handset or a facsimile equipment automatically. CONSTITUTION:An antenna 2 is connected to a main body 1 of an automobile telephone set and a handset 4 is connected via the facsimile equipment 3. A switching signal commanding whether talking or facsimile communication is applied in the case of a calling is inputted to the main body 1 and a signal line to the main body 1 is switched automatically to the handset 4 or the facsimile equipment 3 according to the command.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a facsimile communication system using a car telephone.

[Prior Art] In recent years, a facsimile device has been connected to a car telephone device, and facsimile communication between mobile bodies using the car phone has been carried out.

In this case, the car phone is usually used for making calls, so
On the receiving side, if the facsimile machine automatically receives the call when it receives a call, it will interfere with the caller's attempt to make a call, so the operator will first answer the call, talk to the caller, and then, during facsimile communication, The line was switched to the facsimile machine.

For this reason, conventionally, when performing facsimile communication, the operator on the receiving side had to manually switch the line after answering the call, and the operator on the calling side had to make the call each time, which was a hassle. There was a time.

[Objective] It is an object of the present invention to provide a facsimile communication system using a car telephone that eliminates the above-mentioned troubles and eliminates the need for calls and line switching operations during facsimile communication.

[Configuration] For this purpose, the present invention inputs a switching signal to the main body of the car telephone device to instruct the called party whether to make a call or to perform facsimile communication when making a call, and the main body converts the input signal into the main body of the car telephone device. While transmitting the switching signal to the receiving side, when a call is received, the main unit receives the transmitted switching signal and connects a predetermined signal line to the main unit according to the instructions.
The device is characterized in that it automatically switches and connects to a handset or facsimile device.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a block diagram of a facsimile communication system according to an embodiment of the present invention. In the figure, an antenna 2 is connected to a main body 1 of the car telephone device, and a handset 4 is also connected via a facsimile device 3. In this case, a connector 1a is connected to the antenna 2 of the main body 1, a connector 1b is connected to the facsimile machine 3, a connector 3a is connected to the facsimile machine 3 to the main body 1, and a connector 3a is connected to the handset 4. A connector 3b is attached to each of the connectors, and each of the above-mentioned connections is made by these connectors.

The main body 1 includes a radio section 11 that communicates with a radio base station, and a control section 12 that controls the radio section 11. The synthesizer section 11a outputs a carrier wave, a voice band transmission signal, a modulated signal of a data signal, and a local oscillation signal for reception.

The transmitter 11b extracts a predetermined high frequency output based on the carrier wave and modulated signal. duplexer ll
c supplies the high frequency output to the antenna 2, and demultiplexes the high frequency signal received by the antenna 2 and sends it to the receiving section lid.
It is intended to supply The receiving section 11d extracts a voice band received signal and a data signal from the received high frequency signal.

The audio section 12a is for inputting and outputting audio band transmission and reception signals from the wireless section 11 side, and the logic section 12b is for inputting and outputting data signals.

A 5CU (system control unit) 31 in the facsimile machine 3 receives and records single-stroke information, and reads and transmits originals to be sent, and an NCU (network control unit) 32 controls some signals on the main body l side. The line is the 5C
This is to switch to the U31 side or the handset 4 side.

Specifications such as the connector connecting the main body 1 and the handset 4 of commonly used car telephone devices, the terminal numbers thereof, and the signal names of each line are unified. The connectors lb, 3a, and 3b conform to the unified specifications. There are 24 connector terminals, and the connection between the main body 1 and the handset 4 is via the facsimile machine 3.
Connected by real signal line.

The following table shows the connector terminal number and signal direction of each signal connected to the NCU 32 in the facsimile machine 3 among the 24 signal lines.

In other words, signals from the facsimile device 3 side to the main body 1 include a transmission signal TX of terminal number 1 and a hook signal HK of terminal number l5. Signals from the main body 1 toward the facsimile machine W3 include a reception signal RX at terminal number 3 and an option 5 signal that indicates the arrival of a call.

Further, in this embodiment, the F/T switching signal F/T is transmitted and received using terminal number 23, which is reserved in the above specifications. This F/T switching signal F/T is used by the originating station to instruct the terminating station whether to perform a telephone call or facsimile communication, thereby switching the signal line of the NCU 32 on the terminating side. . Therefore, the signal direction is from the facsimile machine 3 to the main body 1 when a call is sent, and from the main body 1 to the facsimile machine 3 when an incoming call is received.

Further, the synthesizer section 11a of the radio section 11 in the main body 1 is provided with F/T switching signal modulation means for transmitting the F/T switching signal F/T. T
For transmission, F/T switching signal modulation means is provided in the receiving section lid. Moreover, in the logic section 12b,
F/T switching signal F input to terminal number 23 when making a call
On the other hand, when a call is received, the wireless unit 1
The F/T switching signal F/T received at terminal number 1 is transferred to terminal number 2 above.
F/T signal transmission/reception switching means is provided for switching the output to 3.

FIG. 2 shows connections between the facsimile device 3 and each device and a block configuration diagram. In the figure, 5C
The reading unit 31a of U31 reads the original image,
The recording unit 31b records received images. The modem 31c is for transmitting and receiving image information, and is connected to I10 port 3.
1d is for inputting and outputting various control signals. The operation display section 31e performs predetermined operations for transmitting and receiving images, and the control section 31f controls each of the above sections in accordance with the above operations to execute predetermined operations.

The switching circuit 32a of the NCU 32 switches the connection of the signal line from the main body 1. Transmission signal T from main body 1
The X line is the common terminal C of the switching circuit 32a, and the received signal RX line is the common terminal C2, hook signal HK.
The lines are respectively connected to the common terminal C1.

The break-side contacts a1 to a of the switching circuit 32a are each connected to the handset 4. The ground line GND of the main body 1 is connected to the ground line of the facsimile machine 3 and also to the handset 4. .

In addition, F/T switching signal F/T and option signal OP
Each line of 5 is connected to I10 port 31d in 5CU31. A plurality of signal lines n other than the above among the 24 on the main body 1 side are directly connected to the handset 4.

The transmission signal interface section 32b performs level adjustment and impedance matching so that the transmission signal from the modem 31c is suitable as the transmission signal TX to the main body 1.The transmission signal from the modem 31c is inputted to the transmission signal interface section 32b, and its output is as follows. The receiving signal interface section 32c connected to the make side contact b8 of the switching circuit 32a performs level adjustment and impedance matching so that the received signal RX from the main body 1 is compatible with the receiving signal of the modem 31c.
Contact b2 of the switching circuit 32a is connected to its input,
The output is input to the modem 31c.

The contacts of the switching circuit 32a are connected to the ground line. The NCU 32 is configured to be switched by a switching signal EX outputted from the I10 port 31d.

Next, with the above configuration, a case will be described in which a call is made between the facsimile communication systems of this embodiment.

When the facsimile machine 3 is not operating, the switching circuit 32a is connected to the contacts a1 to a. Thereby, the handset 4 is connected to the main body 1 and is ready for normal use.

Further, in this state, the I10 port 31d outputs the F/T switching signal F/T at a high level (hereinafter simply abbreviated as II HII).

The operator on the calling side first takes the handset off-hook and makes a call to the other party by performing a predetermined dial operation.

As a result, as shown in FIG. 3(a), the hook signal H
While K becomes a low level (hereinafter simply abbreviated as "L"), the main body 1 operates and the other party is called. Further, at this time, the F/T switching signal F/T outputted by the factory/○ boat 31d is transmitted by the main body 1 and transmitted to the other party's main body 1.

On the other hand, when the called party receives the call, the main body 1 sets the option signal OP5 indicating the received call to "Llj" and switches the transmitted F/T switching signal F/ Receive and output T. However, in this case, F/T
The switching signal F/T is always ``H'', and the transmitting side is also
Since it is H71, there is no change as shown in FIG. When the F/T switching signal F/T is "Hjj," the switching circuit 32a is maintained in the connected state of the contacts 81-a.

Furthermore, upon receiving the above-mentioned call, the handset 4 outputs a ringing tone. The operator then takes the handset 4 off-hook. Then, as shown in FIG. 4(c), the hook signal HK becomes 1111+, thereby entering a telephone call state and allowing a telephone call to be made with the calling party. Therefore, in this case, the transmission signals TX and RX of 1 originating side 9 receiving side are as shown in Fig. 3(C).
And as shown in FIG. 4(d), the voice signal from the call is transmitted.

Then, when the call ends and the handset 4 is taken off-hook, the initial state returns.

Next, when performing facsimile communication, the operator on the calling side takes the handset 4 off-hook and makes a call to the other party by performing a predetermined dial operation, as described above. Then, while the destination is being called, a transmission original is set on the facsimile machine 3 and a predetermined transmission operation is performed.

Due to the off-hook, the hook signal HK becomes "Lll" as shown in FIG. 5, while the facsimile machine 3
When a transmission operation is performed, the switching circuit 32a switches the contacts b1 to
Switched to b3 side. As a result, the transmission signal TX line of the main body 1 is connected to the transmission signal interface section 32b.
The received signal RX line is connected to the received signal interface section 32
connected to c. At the same time, the hook signal 1 (K line is connected to the ground line, and the hook signal FIK II
The L11 state is maintained.

Furthermore, when the above transmission operation is performed, the F/T switching signal Fp is output at "L" from the I10 port 31d, as shown in FIG. This signal is transmitted by one main body 1 and transmitted to the other party's main body 1.

On the other hand, on the receiving side, when a call is received, the main unit 1 as shown in Fig. 6 (a)
), the option signal OP5 indicating incoming call is sent to I
t L II, and the F/T switching signal F/T sent above is
Output T. Now, since it is being transmitted at L''' on the calling side, the F/T switching signal F/T output from the main unit 1 also changes to II
become. The states of this F/T switching signal F/T and option signal OP5 are detected at the I10 port 31d. When the F/T switching signal F/T becomes “L”, switching circuit 3
2a is switched to the contact b-b side. Thereby, the transmission signal TX line of the main body 1 is connected to the transmission signal interface section 32b, and the reception signal RX line is connected to the reception signal interface section 32c. At the same time, the hook signal 1 (line) is connected to the ground line, so the hook signal HK is connected to the IF L line as shown in (e) of the same figure.
ll and receive a call. This enables transmission and reception using the transmission signal TX and reception signal RX.

Next, the 5CU 31 is activated and starts transmitting a predetermined facsimile signal, while the originating side also starts transmitting a predetermined facsimile signal upon receiving the signal. As a result, in the transmission signals TX and RX of 1 originating side and 2 receiving side, the 5th
As shown in FIG. 6(c) and FIG. 6(d), a facsimile signal is transmitted and an original image is transmitted.

When this communication is completed, each part of the facsimile machine 3 on both the sending and receiving sides returns to its initial state.

On the other hand, in the call state shown in FIG. 3, when the calling party performs a sending operation on the facsimile machine 3, the F/T switching signal F/T immediately changes to jl L II, and the switching circuit 32a
is switched to the BL-B side, while the F/T is switched to the terminating side.
A switching signal F/T is transmitted. The receiving side detects the F/T switching signal "IIL" of the F/T switching signal and switches the switching circuit 32a to b, -.
It switches to the b3 side and starts transmitting a predetermined facsimile signal. In addition, the calling side also receives the signal from the called side,
A predetermined facsimile signal is transmitted, and the original image is transmitted. In this way, it is also possible to perform facsimile communication during a call.

As described above, in this embodiment, the calling side sends the F/T switching signal F/T to the main body 1, which instructs whether the facsimile device 3 should make a call or perform facsimile communication to the called party.
by its body 1.

The F/T switching signal F/T is transmitted to the called party.

Further, the receiving side receives the transmitted F/T switching signal F/T by the main unit l, and according to the instruction, switches the switching circuit 32a.
I am trying to switch automatically.

As a result, during facsimile communication, the operator on the calling side does not need to make a call, and the operator on the receiving side does not need to manually switch the line after answering and talking.

In one or more embodiments, the F/T switching signal F/T is already transmitted when the calling party is calling the called party, but it may be transmitted after the called party receives the call. good. In this case, once the operator on the receiving side takes the handset off-hook, the F/T switching signal F/T is outputted, thereby enabling the facsimile machine 3 to be activated.

When the facsimile machine 3 is activated, the switching circuit 32a is switched and the handset 4 is no longer able to make a call, so the operator can determine from this state whether the facsimile machine is able to receive a call.

[Effects] As described above, according to the present invention, when making a call, a switching signal instructing the called party to make a call or a facsimile communication is input into the main body of the car telephone device, and the main body , transmits the inputted switching signal to the called party, and when a call is received, the main unit receives the transmitted switching signal and connects a predetermined signal line to the main unit according to the instructions to the handset or facsimile. Since the connection to the device is automatically switched, there is no need for a telephone call during facsimile communication, and there is no need for the receiving party to manually switch the line.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram of a facsimile communication system according to an embodiment of the present invention, FIG. 2 is a block configuration diagram and connection diagram of a facsimile machine, and FIG. 3 is a time chart of each signal on the calling side during a call. Fig. 4 is a time chart of each signal on the receiving side during a call, Fig. 5 is a time chart of each signal on the calling side during facsimile communication,
FIG. 6 is a time chart of each signal on the receiving side during facsimile communication. DESCRIPTION OF SYMBOLS 1... Main body, 2... Antenna, 3... Facsimile device, 4... Handset, 11... Radio section, l
la...synthesizer section, llb...transmission section, li
e...Duplexer, lid...Receiving section, 12,3
1f...control section, 12a...audio section, 12b
...Logic section, 31...SCU, 31a...Reading section, 31b...Recording section, 31c...Modem, 31
d...I10 port. 31a...operation display section, 32...NCU, 32a.
...Switching circuit, 32b...Transmission signal interface section, 32c...Reception signal interface section. Figure 3 Figure 4. TX, RX “O]

Claims (1)

[Claims] In a facsimile communication system using a car phone, in which the signal line for transmitting/receiving signals, which are input/output signals to the main body of the car phone device, is switched between the handset and the facsimile device to perform calls and facsimile communications, when making a call, a signal input means for inputting a switching signal to the main body to instruct the called party whether to make a telephone call or facsimile communication; and a switching signal transmitting means disposed in the main body for transmitting the input switching signal to the called party. and a switching signal receiving means disposed in the main body that receives the transmitted switching signal when an incoming call is received, and switching the signal line to the handset or the facsimile machine according to instructions of the received switching signal. A facsimile communication system using a car phone, characterized in that it is equipped with switching means for connecting.