JP2971489B2 - Facsimile machine - Google Patents

Description

The present invention relates to a facsimile machine.

[Related Art] In recent years, facsimile apparatuses are often used by being connected to various telephone apparatuses such as a car telephone apparatus and a radio, in addition to being used by connecting to a normal telephone line.

In this case, conventionally, the facsimile apparatus has been connected to the communication device by the following method.

One method is to provide the facsimile apparatus with an interface circuit and connection terminal dedicated to each communication device, such as a radio device connection, a microphone connection, a car phone radio device connection, and a handset connection. It is connected to a predetermined terminal.

Another method is to externally connect an interface device dedicated to each communication device to a line terminal or a telephone terminal of a normal facsimile device, and connect the communication device via the interface device.

[Problems to be Solved by the Invention] However, as described above, in the method including the interface circuit and the connection terminal dedicated to each communication device, since a function unnecessary for the user is also provided, the number of circuits increases and the device cost increases. Had become. In addition, when there are a plurality of connection units, the operator has to determine where to connect each device, and the connection work is difficult. Further, when a plurality of communication devices are connected, a switching operation for selecting a device to be used or the like is required, so that the setting operation of the operator is troublesome.

On the other hand, in the method of externally connecting the interface device, it is necessary to disconnect the telephone line used for the telephone call and reconnect the telephone to the telephone line, and the connection work is troublesome.

As described above, conventionally, when a facsimile apparatus is used by connecting to various telephone apparatuses, there has been a problem that the apparatus cost is increased and connection work and operations are complicated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a facsimile machine which solves the above-mentioned problems, reduces the cost of the machine, and is easy to connect and operate.

[Means for Solving the Problems] For this purpose, the present invention connects a telephone line to a telephone,
When the facsimile communication is not performed, the telephone is connected to a telephone line, while the facsimile communication is performed. A signal line connector provided in common for connecting a plurality of types of communication devices using a dedicated interface device, and using the above-described telephone line as a communication line, or using the plurality of types of communication One selection switch for arbitrarily selecting whether to use any one of the communication devices of the device, and connected to the signal line connector, according to the dedicated interface device corresponding to the plurality of types of communication devices, Communication means for executing facsimile communication adapted to the plurality of types of communication devices, And it is characterized in Rukoto.

Further, in the signal line connector, from the communication device side to the facsimile device side, the received data signal, if the communication device is provided with a handset, a notification signal indicating the hook state of the handset, A type signal indicating the type of the telephone device and a notification signal indicating that the telephone device has been called via a communication line, and a power supply to be supplied from the facsimile device side to the telephone device side. And transmitting a data signal to be transmitted and a control signal for switching the wireless device between a transmission state and a reception state when the communication device is a wireless device.

Further, when the selection switch is switched to one state, the hook state of the telephone connected to the facsimile apparatus is detected, and when the selection switch is switched to the other state, the hook state of the handset provided in the communication apparatus is detected. The detection signal to be detected is switched by a hook signal switching circuit composed of a logic circuit without using the contact of the selection switch.

[Operation] The facsimile machine does not have an interface circuit for the telephone device, and when the telephone device is connected,
Since only the interface device for the communication device needs to be provided, functions and circuits unnecessary for the user are not required, and the cost of the device can be reduced. Also, since there is only one signal line connector for connecting various communication devices, the connection method is easy to understand and the work is also easy.

Further, the switching of the communication line only requires switching between the normally connected telephone line and the external communication device, so that the setting operation by the operator is also simplified. Furthermore, the work of disconnecting and reconnecting a normal telephone line or telephone is not required for connection of various types of telephone devices.

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

FIG. 1 is a circuit diagram of a facsimile apparatus according to an embodiment of the present invention. In the figure, a telephone line and a telephone 2 are connected to a facsimile machine 1.

In the facsimile apparatus 1, one line of telephone lines is connected to the common terminal c ₁ of the switch circuit of the relay 101, the other line, the relay 101 via the off-hook detection circuit 102 for detecting the off-hook of the telephone set 2 It is connected to the common terminal c _2. The contacts a ₁ and a ₂ of the relay 101 are connected to the telephone 2 and a call detection circuit 103 for detecting a call signal when a call is received.
It is connected to the.

Contacts b ₁ and b ₂ of relay 101 are connected to both ends of one winding of transformer 104. One end of the winding of the relay 101 is connected to a +12 V power supply, and the other end is a changeover switch 105.
And it is connected to the contact a ₃ in. This changeover switch 105 is
Manual switching is performed between the case where communication is performed using the telephone line and the case where communication is performed using a communication device that is separately connected.
Both ends of the other winding of the transformer 104 is connected to the contact point a ₄ and a ₅ of the changeover switch 105.

Connector 106 is for connecting various communication devices through the interface unit, the contact b ₃ and pin 6 of the call / FAX switching signal TEX connector 106 of the changeover switch 105,
Pin 7 of the received data signal RXD and the contact b _4, a contact point b ₅ and the pin 8 of the transmission data signal TXD is connected.

The power supply circuit 107 supplies power of −12 V, +12 V, and +5 V to various parts in the apparatus and connected apparatuses.
106 pin 1 is ground COM, pin 2 is -12V, pin 3 is +1
2V and pin 4 are connected to + 5V power supply lines, respectively.

The facsimile processing unit 108 includes a modem, various image processing units, and a control unit, and performs reading of a document image, recording of a received image, transmission of image information, and the like.

The common terminal c ₄ of the changeover switch 105 is connected to the reception signal circuit 109.
Is connected to the input side. This reception signal circuit 109
It amplifies the received signal and removes unnecessary band signal components. The output signal is input to the modem of the facsimile processing unit 108. The transmission signal from the modem is input to the transmission signal circuit 110.

Transmission signal circuit 110, adjusts the transmission level of the signal by removing the signal component of the unnecessary band, and its output is connected to the common terminal c ₅ of the changeover switch 105.

A call detection signal RING output from the call detection circuit 103 is
The data is input to a control unit in the facsimile processing unit 108.
Is output call / FAX switching signal TEX0 from the control unit with respect to the common terminal c ₃ of the switch 105, the line of the common terminal c ₆ is inputted to the control unit as an external device selection signal AUX.

The hook signal switching circuit 111 includes an off-hook detection circuit 102
Detection signal and hook signal HOO from pin 9 of connector 106
K is input, and a hook signal HOOK0 is output to the control unit. The hook signal switching circuit 111 includes a switch 105
, One of the two input signals is output as a hook signal HOOK0.

The line of the detection signal of the off-hook detection circuit 102 is connected to the input of the inverter 111a in the hook signal switching circuit 111, the output is connected to one input of the NAND circuit 111b, and the other input is the common terminal of the changeover switch 105. Connected to c ₆ . The common terminal c ₆ is connected to a NAND circuit.
One inverting input of 111c is connected to the other inverting input, and the other inverting input is connected to pin 9 of connector 106. NAND circuit 111b
Each output of the NAND circuit 111c is connected to an inverting input of the NOR circuit 111d. The output of the NOR circuit 111d is connected to the control unit.

Further, from the control unit, a press talk signal PTT is output to pin 5 of the connector 106, and a call signal CALL from a communication device connected from the pin 10 and unit identification signals U1 and U2 from pins 11 and 12 are output. It is input to the control unit.

By the way, in this embodiment, when various devices are connected to the facsimile machine 1, they are connected via dedicated interface units.

FIG. 2 shows a connection diagram in the case of connecting a car telephone apparatus. The wireless device 31 and the handset 32 of the car telephone apparatus 3 are connected to the car telephone interface unit 4.
Is connected to the facsimile machine 1 via the.

A connector 4a is attached to the car telephone interface unit 4, and the connector 4a is connected to the connector 106 of the facsimile machine 1.

The power supply of the facsimile apparatus 1 is supplied to the car telephone interface unit 4 from pins 1 to 4 of the connector 4a.

The signal line switching means 4b switches the transmission / reception signal line of the wireless device 31 between the case of talking by the handset 32 and the case of facsimile communication by the facsimile apparatus 1. The signal / switch FAX switching signal TEX of the pin 6 of the connector 4a. Is controlled by

The signal interface means 4c receives and transmits a reception data signal at pin 7 of the connector 4a and a transmission data signal at pin 8, outputs a reception signal from the wireless device 31 as a reception data signal, and outputs the transmission data signal to the automobile telephone device. 3 is output as a transmission signal.

The off-hook detecting means 4d detects the off-hook of the handset 32 and outputs a hook signal HOOK to the pin 9 of the connector 4a.
Is output to

The unit identification code output means 4e outputs an identification code indicating that the interface unit is a mobile telephone interface unit 4 among various interface units.
The signal 2 is output to the pins 11 and 12 of the connector 4a.

FIG. 3 shows a connection diagram in the case of connecting a radio device for telephone calls. The radio device 5 and the microphone unit 6 having the microphone 6a and the press-talk switch 6b are the radio interface unit. 7 through the facsimile machine 1
Is to be connected to.

The radio interface unit 7 has a connector 7a
The connector 7a is connected to the connector 106 of the facsimile machine 1.

The power supply is supplied to the radio interface unit 7 from the pins 1 to 4 of the connector 7a in the same manner as described above.

The transmission / reception switching means 7b switches the wireless device 5 between a transmission state and a reception state, and is controlled by a press-talk signal PTT of the pin 5 of the connector 7a.

The signal interface means 7c receives and outputs the received data signal at pin 7 and the transmitted data signal at pin 8 of the connector 7a, outputs a received signal from the radio 5 as a received data signal, and outputs the transmitted data signal to the radio 5 Is output as a transmission signal.

The call detecting means 7d outputs a call signal CALL to the pin 10 of the connector 7a when the radio device 5 is called from another radio station.

The unit identification code output means 7e outputs the identification code of the radio interface unit 7 to the unit identification signals U1, U
The signal 2 is output to pins 11 and 12 of the connector 7a.

FIG. 4 shows a connection diagram in the case where an acoustic coupler is connected. The acoustic coupler 8 is connected to the facsimile apparatus 1 via an interface unit 9 for an acoustic coupler. The acoustic coupler 8 is provided with a speaker 8a coupled to a telephone transmitter and a microphone 8b coupled to a receiver. The connector 9a is attached to the interface unit 9 for the acoustic coupler, and the connector 9a is connected to the connector 106 of the facsimile machine 1.

The power supply is supplied to the acoustic coupler interface unit 9 from the pins 1 to 4 of the connector 9a in the same manner as described above.

The signal interface means 9b inputs and outputs the reception data signal of the pin 7 and the transmission data signal of the pin 8 of the connector 9a, outputs the reception signal from the acoustic coupler 8 as the reception data signal, and outputs the transmission data signal to the acoustic coupler 8 Is output as a transmission signal.

The unit identification code output means 9c outputs the identification code of the acoustic coupler interface unit 9 to the unit identification signal.
U1 and U2 are output to pins 11 and 12 of the connector 9a.

FIG. 5 shows a connection diagram when another telephone line is connected. The telephone line and the telephone 10 are connected via the telephone line interface unit 11 to the facsimile apparatus 1.
Is to be connected to.

A connector 11a is attached to the telephone line interface unit 11, and the connector 11a is connected to the connector 106 of the facsimile machine 1.

The power supply is supplied to the telephone line interface unit 11 from the pins 1 to 4 of the connector 11a in the same manner as described above.

The signal line switching means 11b switches the line of the transmission / reception signal for the telephone line between the case of talking by the telephone 10 and the case of facsimile communication by the facsimile apparatus 1. Controlled.

The signal interface means 11c is connected to the pin 7 of the connector 11a.
And a transmission data signal of the pin 8 are input / output to output a reception signal from the line as a reception data signal and to output the transmission data signal to the line as a transmission signal.

The off-hook detecting means 11d detects the off-hook of the telephone 10 and outputs it to the pin 9 of the connector 11a as a hook signal HOOK.

The call detection means 11e outputs a call signal CALL to the pin 10 of the connector 11a when a call is received and a call signal is received from a line.

The unit identification code output means 11f outputs the identification code of the telephone line interface unit 11 to the pins 11 and 12 of the connector 11a as unit identification signals U1 and U2.

Next, the operation of the facsimile apparatus of the present embodiment with facsimile communication via a telephone line on the main body will be described.

In this case, the operator switches the changeover switch 105 to the “a” side to turn on the apparatus power.

When the power is turned on, the facsimile apparatus 1 first sets the call / fax switching signal TEX0 to "H" (high level) as shown in FIG. 6 (process 1001). This allows the relay 101
Is turned off, the movable contact of the switch circuit is connected to the a side, and the telephone 2 is connected to the telephone line. Next, the external device selection signal AUX is checked (process 1002). Now, this signal line is opened by the changeover switch 105 and is at "H". In this case (N in process 1002), the call detection signal RING is checked next (process 1003).

When there is no incoming call, this signal is "H". In this case (N in process 1003), it is checked whether the start button of the operation unit (not shown) has been pressed (process 1003).
4) If the start button is not pressed (process 100
4N), the process returns to the above processing 1002.

When the operator performs facsimile communication, the telephone 2
When a call is made to the other party and the other party answers, the start button of the operation unit is pressed.

When the start button is pressed (Y in step 1004), the facsimile apparatus checks the hook signal HOOK0 (step 1005). When the telephone 2 is off-hook, the off-hook detection circuit 102 outputs an "L" detection signal. Now, the common terminal c ₆ of the changeover switch 105 is connected to the contact a _6, one of the inverting input of the one and the NAND circuit 111c inputs of the NAND circuit 111b and becomes to "H". As a result, the detection signal of the off-hook detection circuit 102 is transmitted to the hook signal HO via the inverter 111a, the NAND circuit 111b, and the NOR circuit 111d.
It is input to the control unit as OK0.

When the hook signal HOOK0 is “L” (Y in process 1005), the facsimile machine sets the call / FAX switching signal TEX to “L” (process 1006). As a result, the winding of the relay 101 is energized, and the switch circuit is switched to the b side. As a result, the signal received from the telephone line is transmitted to the relay 101 and the transformer.
104, a changeover switch 105 and a reception signal circuit 109, and are input to a modem in the facsimile processing unit 108, and an output signal from the modem is transmitted to a line via a transmission signal circuit 110, a changeover switch 105, a transformer 104, and a relay 101. Will be done.

By the way, in this embodiment, in addition to a normal telephone line, a wireless line using a car telephone or a wireless device may be used, but each line has good or poor transmission quality. For this reason, facsimile communication is performed in a transmission control procedure according to the transmission quality of each line.

Therefore, the type of the line used next is identified. That is, in this case, since the external device selection signal AUX is "H", it is identified that the telephone line is a normal telephone line (process 107). In this case, the communication mode is determined to be a normal transmission control procedure, for example, an error correction mode of the G3 standard (process 1008).

Next, it is checked whether or not the wireless device is being used (process 1009). The wireless device is not currently used. In this case (N in process 1009), facsimile communication in which a facsimile signal is transmitted and received by the modem in the facsimile processing unit 108 according to the transmission control procedure determined above is executed (process 101).
0). When the facsimile communication is completed, the process returns to the initial standby state and switches the relay 101 to the side a (processing 100).
1).

 Next, it is assumed that a call arrives at the telephone line.

In this case, the call detection circuit 103 detects a call signal from the line and sets the call detection signal RING to “L”.

When the call detection signal RING becomes “L” (Y in step 1003), the facsimile apparatus switches the relay 101 and executes facsimile communication in the same manner as described above (to step 1006).

On the other hand, in the case of performing facsimile communication using various devices such as a car telephone device, the operator needs to perform the communication shown in FIGS.
As described in the figure, each predetermined device or line is connected to a dedicated interface unit, and the connector of the interface unit is connected to the facsimile machine 1.
Connector 106. Further, the changeover switch 105 is switched to the b side.

Now, for example, it is assumed that the mobile telephone device 3 is connected as shown in FIG.

In this case, the car phone interface unit 4
In the standby state of the facsimile machine 1, the respective signals between the wireless device 31 and the handset 32 are connected, and the operator can make and receive calls and talk as usual.

In the facsimile machine 1, when the changeover switch 105 is switched to the b side, the external device selection signal AUX becomes "L".
When the external device selection signal AUX is “L” (Y in process 1002), the facsimile device 1 checks the call signal CALL (process 1011). Car phone interface unit 4
In, the call signal CALL is not connected to the connector 4a,
Its pin 10 is "H". If the call signal CALL is "H" (N in process 1011), it is checked whether the start button has been pressed (process 1004) as described above. If the start button has not been pressed (N in process 1004), the above process is performed. repeat.

When performing facsimile communication, the operator presses the start button of the facsimile apparatus 1 after making a call with the other party by a predetermined outgoing / incoming operation of the handset 32.

When the start button is pressed (Y in process 1004), the facsimile machine 1 checks the hook signal HOOK0 (process 1005).

When the handset 32 is off-hook, the hook signal HOOK0 is output from the car telephone interface unit 4 at "L". This hook signal HOOK is input to one inverted input of the NAND circuit 111c of the facsimile machine 1. In this case, the hook signal HOOK is output as the hook signal HOOK0 because the other inverted input is "L".

If the hook signal HOOK0 is “L” (Y in the process 1005),
The call fax switching signal TEX0 is set to "L" (process 1006). In this case, the call / FAX switching signal TEX0 is input to the car telephone interface unit 4 as the call / FAX switching signal TEX. In this case, the transmission / reception signal of the modem is switched by the changeover switch 105 and transmitted to the car telephone interface unit 4 side by the transmission data signal TXD and the reception data signal RXD.
Input / output as When the call / fax switching signal TEX becomes “L”, the car telephone interface unit 4 outputs the input transmission data signal TXD to the car telephone apparatus 3 and outputs the reception signal of the car telephone apparatus 3 as the reception data signal RXD. Switch the signal circuit so that

Next, the facsimile machine 1 determines that the mobile telephone 3 is connected based on the unit identification signals U1 and U2 output from the unit identification code output means 4e (process 1007). By the way, since a car telephone line has relatively poor transmission quality, for example, a car phone transmission control procedure in which the number of times of retransmission of image information in the error correction mode is reduced and the data transmission speed at the start of communication is reduced. It is set in advance. Therefore, the communication mode is determined as the transmission control procedure (process 1008).

Then, since the wireless device is not currently used (N in process 1009), a facsimile signal is transmitted and received according to the above procedure, and a predetermined facsimile communication is executed (process 1010). And
When the facsimile communication ends, the state is switched to a state in which a telephone call with the handset 32 is possible, and the state returns to the initial standby state (to the process 1001).

Next, it is assumed that the wireless device 5 and the microphone unit 6 are connected as shown in FIG. In this case, the radio interface unit 7 connects each signal between the microphone unit 6 and the radio 5 in the standby state of the facsimile machine 1, and the operator can perform radio communication as usual.

When the external device selection signal AUX is "L" (Y in step 1002), the facsimile device 1 calls the call signal CALL as described above.
Is checked (process 1011). The radio interface unit 7 sets the call signal CALL to "L" when the radio 5 receives a call from another radio station.

When the calling signal CALL is “H” (N in step 1011), the facsimile apparatus 1 checks whether the start button has been pressed as described above (step 1004), and if the start button has not been pressed (N in step 1004). ), And repeat the above process.

When performing facsimile communication, the operator presses the start button of the facsimile apparatus 1 after making a call with the other party.

When the start button is pressed (Y in process 1004), the facsimile machine 1 checks the hook signal HOOK0 (process 1005). Now, the pin 9 of the hook signal HOOK of the connector 7a is grounded and is at "L". As a result, the hook signal HOOK0 also becomes “L” as described above. In this case (Y in processing 1005), the call / FAX switching signal TEX0 is set to “L” (processing 1006). Also, since the radio interface unit 7 does not receive the call / fax switching signal TEX,
This signal is ignored. On the other hand, the transmission and reception signals of the modem are
Transmission data signal to the radio interface unit 7
TXD is input as the received data signal RXD.

Next, the facsimile apparatus 1 determines that the radio device 5 is connected based on the unit identification signals U1 and U2 output from the unit identification code output means 7e (Process 10).
07). By the way, since the transmission quality of the communication line by the wireless device 5 is more unstable than that of the car telephone line, for example,
A transmission control procedure for a wireless device is set in advance such as a normal G3 standard communication mode other than the error correction mode. Therefore, the communication mode is determined as the transmission control procedure (process 1008).

In this case, since a wireless device is used (Y in process 1009),
Next, it is determined whether the facsimile signal is transmitted or received (processing 10).
12) In the case of transmission (Y in process 1012), the pre-talk signal PTT is set to "L" (process 1013), and a predetermined facsimile signal is transmitted from the modem (process 1014). Further, in the case of reception (N of processing 1012), the pre-talk signal PTT is set to “H” (processing 1015), and the facsimile signal is received by the modem (processing 1016).

In this case, the radio interface unit 7 controls the radio 5 to be in the transmission state when the pre-talk signal PTT is “L” and transmits the transmission data signal TXD, and when the pre-talk signal PTT is “H”, The reception data signal RXD is output to the facsimile apparatus 1 by controlling to the reception state. In this way, a predetermined facsimile communication is executed (step 101
0). Then, when the facsimile communication ends, the process returns to the initial standby state (to process 1001).

On the other hand, when called from another radio station, the call signal CALL
Becomes “L”. In this case (Y in processing 1011), the same operation as described above is automatically executed (to processing 1006).

Next, it is assumed that the acoustic coupler 8 is connected as shown in FIG.

When performing facsimile communication, the operator calls the other party with a telephone to be used and puts into a talking state, attaches the acoustic coupler 8 to the handset, and presses the start button of the facsimile apparatus 1.

As described above, when the start button is pressed (Y in step 1004), the facsimile apparatus 1 outputs the hook signal HOOK0.
Is checked (process 1005). Hook signal of connector 9a
HOOK pin 9 is grounded and "L". As a result, the hook signal HOOK0 also becomes “L” as described above.

In this case (Y in processing 1005), the call / FAX switching signal TEX0 is set to “L” (processing 1006). In this case, the interface unit 9 for the acoustic coupler is provided with a call / fax switching signal TEX.
Is not input, so this signal is ignored. On the other hand, the transmission / reception signals of the modem are transmitted to the acoustic coupler interface unit 9 side by the transmission data signal TXD and the reception data signal RX.
Input and output as D.

Next, the facsimile apparatus 1 determines that the radio device 5 is connected based on the unit identification signals U1 and U2 output from the unit identification code output means 9c (Process 10).
07). Then, in this case, the transmission control procedure set in advance for the acoustic coupler is determined (process 1008), and the determined facsimile communication is executed in the same manner as described above (process 1009,
Processing 1010) from N in processing 1009). When the facsimile communication ends, the process returns to the initial standby state (step 1001).
What).

Next, it is assumed that another telephone line is connected as shown in FIG. In this case, the telephone line interface unit 11 sets the telephone 10 in the standby state of the facsimile machine 1.
Is connected to a telephone line.

Therefore, when performing facsimile communication, the operator presses the start button of the facsimile apparatus 1 after making a telephone call state with the other party by a predetermined outgoing / incoming operation of the telephone 10.

When the start button is pressed (Y in process 1004), the facsimile machine 1 checks the hook signal HOOK0 (process 1005).

When the telephone 10 is off-hook, the hook signal HOOK is output at "L" from the telephone line interface unit 11, and the hook signal HOOK0 becomes "L" as described above.

If the hook signal HOOK0 is “L” (Y in the process 1005),
The call / FAX switching signal TEX0 is set to "L" (process 1006). When the call / fax switching signal TEX becomes “L”, the telephone line interface unit 11 disconnects the telephone 10 and transmits the transmission data signal TXD and the reception data signal RXD of the facsimile apparatus 1.
Is switched to be transmitted / received to / from the telephone line.

Next, the facsimile machine 1 determines from the output unit identification signals U1 and U2 that the telephone line interface unit 11 is connected (processing 100).
7). In this case, a standard transmission control procedure such as the G3 standard error correction mode is determined (processing
1008) Execute a predetermined facsimile communication (process 100
9, processing 1010 from N of processing 1009). Then, when the facsimile communication is completed, the telephone 10 is connected to the telephone line, and returns to the initial standby state (to the processing 1001).

When a call arrives at the telephone line, the call signal CALL output from the telephone line interface unit 11 is set to “L”.
become. In this case (Y in step 1011), the predetermined facsimile communication is automatically executed (to step 1006).

As described above, in the present embodiment, the facsimile machine does not have the interface circuits for various communication devices,
When using the telephone device, the user only needs to provide the interface unit for the telephone device, so that unnecessary functions and circuits are not required, and the cost of the device can be reduced.

Further, since various communication devices are connected by one connector 106, the connection method is easy to understand and the work is easy. Further, the switching of the communication line only requires switching between the normally connected telephone line and the external communication device, so that the setting operation by the operator is also simplified.

The connector 106 transmits the received data signal RXD, the hook signal HOOK, the unit identification signals U1, U2, and the call signal CALL from the various interface units to the facsimile apparatus 1, and also transmits various power supplies in the opposite direction. ,
The transmission data signal TXD and the press talk signal PTT are transmitted. As described above, by accommodating each signal line used in various communication devices in one connector, it is possible to execute an efficient communication operation such as automatic incoming call or switching of a communication procedure according to transmission quality of a communication line. it can.

Further, switching between the detection signal of the off-hook detection circuit 102 and the hook signal HOOK of the external communication device is performed by a hook signal switching circuit 111 formed by combining a gate circuit. By this switching, the changeover switch 105
Is better with a four-circuit switch. The gate circuit can be configured without using any extra cost since the surplus elements of the IC used in other signal circuits can be used. Further, since the four-circuit switch is inexpensive and small in size as compared with the switch having five or more circuits, the apparatus cost can be reduced and the apparatus can be formed small.

In the above-described embodiment, various communication devices are connected by the connector 106. However, it goes without saying that the invention is not limited to the connector, and other connectors such as connection terminals may be used.

[Effects of the Invention] As described above, according to the present invention, various communication devices are connected to each other by a common signal line connector provided in a facsimile device via a dedicated interface device. Therefore, when connecting a telephone device, only the interface device for the telephone device needs to be provided.
Functions and circuits unnecessary for the user are not required, and the cost of the apparatus can be reduced. On the other hand, since there is only one signal line connector for connecting various communication devices, the connection method is easy to understand and the work is easy. (1) A single selection switch is used to select whether to use a normal telephone line or a communication device, so that the setting operation by the operator is also simplified.

[Brief description of the drawings]

FIG. 1 is a circuit configuration diagram of a facsimile apparatus according to an embodiment of the present invention, FIG. 2 is a connection diagram when using a car telephone device, FIG. 3 is a connection diagram when using a radio, FIG. FIG. 5 is a connection diagram when using an acoustic coupler, FIG. 5 is a connection diagram when using another telephone line, and FIG. 6 is a flowchart of a communication operation of the facsimile apparatus. 1 facsimile machine, 2,10 telephone, 3 telephone car phone, 4 telephone car interface unit, 4a, 7a, 9a, 11a, 106 connector, 4b, 11b signal line switching Means, 4c, 7c, 9c, 11c: Signal interface means, 4d, 11d: Off-hook detection means, 4e, 7e, 9c, 11f ...
Unit identification code output means, 5: radio, 6: microphone unit, 7: radio interface unit, 7b: transmission / reception switching means, 7d, 11e: call detection means, 11
··················································································································································· 107 ... power supply circuit, 108 ...
... Facsimile processing unit, 109 ... Reception signal circuit, 110 ...
Transmission signal circuit, 111... Hook signal switching circuit.

Claims (3)

(57) [Claims] A telephone line is connected to a telephone, and when the facsimile communication is not performed, the telephone is connected to the telephone line. When the facsimile communication is performed, the telephone is disconnected and the telephone line is used as a communication line. A facsimile apparatus having a function of performing a communication, a signal line connector provided in common for connecting a plurality of types of communication devices for performing communication using various communication lines via respective dedicated interface devices, One selection switch for arbitrarily selecting whether to use the telephone line or any of the plurality of types of communication devices as a line, and the plurality of types of communication devices connected to the signal line connector; According to the dedicated interface device corresponding to the communication device, a file adapted to the plurality of types of communication devices is provided. Facsimile apparatus characterized by comprising a communication means for performing a Shimiri communication, the. 2. The signal line connector according to claim 1, wherein said communication device sends a received data signal to said facsimile device and a notification indicating a hook state of said handset when said communication device has a handset. A signal, a type signal indicating the type of the communication device, and a notification signal indicating that the communication device has been called via a communication line, and a facsimile device side supplies the communication device with the notification signal. 2. The facsimile apparatus according to claim 1, further comprising: a power supply for transmitting the data, a data signal to be transmitted, and a control signal for switching the radio to a transmission state and a reception state when the communication device is a radio. 3. When the selection switch is switched to one of the states, the hook state of the telephone connected to the facsimile apparatus is detected. When the selection switch is switched to the other state, the hook of the handset provided in the communication apparatus is detected. 2. The facsimile apparatus according to claim 1, wherein the switching of the detection signal for detecting the hook state is performed by a hook signal switching circuit comprising a logic circuit without using the contact of the selection switch.