JPH04176250A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To attain communication between plural facsimile equipments (FAXs) connected to external telephone connecting terminals by detecting the hook-up of a device connected to the external telephone connecting terminals of a FAX, calling and starting the relevant equipment and switching and connecting the equipment to a outside line or the other FAX. CONSTITUTION:When a key operation for calling a slave machine 14 is executed from a master machine 1 in a state that a FAX is connected to external telephone set connecting terminals L3, L4 as an external device 14, a control circuit 3 switches the 2nd switches 8, 9 to the other fixed contacts 8c, 9c, opens a normally closed contact 11, disconnects a built-in telephone set 12 and closes switches 15, 16. Then, the circuit 3 controls an extension driving circuit 13, generates a line voltage and then outputs a call signal to call the slave machine 14. When the slave machine 14 responds to the call, the master machine 1 is connected to the slave machine 14 through the 2nd switches 8, 9 and the switches 15, 16, and after transmitting/receiving a prescribed control signal, data can be transmitted from the master machine 1 to the slave machine 14.

Description

[Detailed description of the invention] (b) Industrial application field The present invention relates to facsimile devices.

(B) Conventional technology Recent facsimile machines have a built-in telephone and are configured to be able to connect an external telephone.In addition to being able to make and receive calls using the external telephone, the facsimile machine can also be used by operating the external telephone. Some systems have been developed that are configured to control the reception of
(See Publication No. 857).

(C) Problems to be Solved by the Invention In some cases, separate facsimile devices are connected to the external telephone connection terminal and used in separate rooms, but in this case, facsimile communication is possible only on the external line. It was not possible to communicate with the external facsimile machine connected to the internal facsimile machine connected to the external telephone connection terminal.

(d) Means for Solving the Problems The present invention has been made to improve the above-mentioned problems, and includes means for detecting hook-up of a device connected to an external telephone connection terminal of a facsimile machine, and an extension drive circuit that calls and activates the device, a switching device that connects the device to an outside line or a facsimile machine, and a control device that controls the switching device.

(E) Function Since the present invention is configured as described above, communication can be performed between facsimile machines connected to the external telephone connection terminal.

(f) Example Embodiments of the present invention will be described below based on the drawings.

(1) is the terminal (Ll) (L
2) is a facsimile machine equipped with external telephone connection terminals (L3) and (L4), (2) is a well-known transmitting and receiving circuit consisting of a reading circuit and a recording circuit, and is controlled by a control circuit (3) consisting of a microprocessor. controlled. (4) is a modem circuit that modulates the transmitted signal into a signal suitable for transmission over a telephone line and demodulates the received signal, and is connected to the line transformer (5). (6) (7) are terminals (Ll) (L2)
The first changeover switch switches the movable contacts (6a) and (7).
a) is connected to the terminals (Ll) (L2), one fixed contact (6b) (7b) is connected to the line transformer (5), and the other fixed contact (6c) (7c) is connected to the second switching described later. It is connected to switches (8) and (9). (10) is an incoming call detection circuit connected to the terminals (Ll) and (L2), which supplies a detection signal to the control circuit (3) upon detection of an incoming bell signal. (8) and (9) are the second changeover switches that change between the outside line mode and the extension mode.
) are connected, and one fixed contact (8b) (9b) is connected to the first
Fixed contacts (7c) (6c) of changeover switches (6) (7)
The other fixed contacts (8c) and (9c) are connected to the extension drive circuit (13). Extension drive circuit (13
) are connected to the terminals (L3) (L4) under the control of the control circuit (3).
) supplies line voltage and call signals when communicating with an external device (14) connected to the external device (14). (15) (1
6) is the fixed contact (8c) of the second changeover switch (8) (9).
) (9c) to the line transformer (5). (17) is the movable contact (9a) of the second changeover switch (9).
) and the terminal (L4.), and the external device (1) connected to the terminal (L3) (L4).
4) When the hook-up is detected, the detection signal is sent to the control circuit (
3). (18) is a control signal detection circuit connected to the terminal (L4), which detects a tone or pulse control signal from the external device (]4) connected to the terminals (L3) (L4), and outputs the detection signal. It is supplied to the control circuit (3).

Although not shown, all the switches in the figure are configured to be appropriately switched under the control of a control circuit (3). The switch is switched to the illustrated state in the standby state.

Next, the operation of the present invention having such a configuration will be explained.

First, connect the external device (
When an external telephone is connected as 14), when there is an incoming call, the first and second switch (6) (-7) are switched as shown in the figure, so the bell signal is switched between the first and second switch. The signal is supplied to the built-in telephone (12) and the external telephone (14) via the switches (6), (7), (8), and (9), and the built-in telephone (12) and the external telephone (14) ring to notify the incoming call. Therefore, either the built-in telephone (12) or the external telephone (
If you respond with one of the options 14), you can make a call.

On the other hand, when making a call using the built-in telephone (12) or external telephone (14), if you hook up and dial, the dial signal will be switched to the first and second switch (6), (7) (s
) (9) to the telephone line, and if the other party answers, the call can be made.

The above-mentioned operation is performed when the facsimile machine (1) is set to manual reception mode.If the facsimile machine (1) is set to automatic reception mode, when there is an incoming call, the incoming call detection circuit (1)
0), the control circuit (3) switches the first changeover switch (6
) (7) to one of the fixed contacts (6b) and (7b) by connecting a switching line to the line transformer (5) to respond as a facsimile. At this time, if the sending side is also a facsimile machine, after receiving and transmitting a predetermined control signal, it enters a receiving operation and records the reception. However, if the caller is a telephone, the control circuit (3) cannot send or receive the predetermined control signal, so the control circuit (3) connects the first changeover switch (6) (7) to the other fixed contact (6c).
) (7c) disconnect the switching line to the side.

Next, the operation when a facsimile machine is connected as an external device (14) to the external telephone connection terminal (L3) (1, 4) will be explained. Here, the facsimile device (1) is called a master device, and the facsimile device (14) connected to the terminals ('L3) and (L4) is called a slave device.

First, when transmitting from the base unit (1) to an outside line, when the transmit key is operated on the base unit (1), the control circuit (3) switches the first changeover switch (6) (7) to one of the fixed contacts (6b). )(7b
) side to the switched line and set it to be ready for transmission.

On the other hand, when transmitting from the handset (14) to an outside line, the first
Since the second changeover switches (6), (7), (8), and (9) are switched to the illustrated states, transmission to an outside line can be performed by performing a transmission operation on the handset (14).

Next time there is an incoming facsimile call, if the base unit (1) is set to receive automatically, the first switch (6) (7
), the base unit (1) performs reception recording.

On the other hand, if the base unit (1) is set to manual reception and the slave unit (14) is set to automatic reception, the slave unit (14) responds to the incoming call and records the reception.

Next, facsimile communication between the base unit (1) and the slave unit (14) will be explained.

First, when a key operation is performed on the base unit (1) to call the slave unit (14), the control circuit (3) detecting the key signal switches the second changeover switch (8) (9) to the other fixed contact (8c). (9C
) side, open the normally closed contact (11) to disconnect the built-in telephone (12), and then switch (15) (1
6) Close. Next, the extension drive circuit (13) is controlled to generate line voltage and a ringing signal to send the slave unit (13).
14) is called. If the handset (14) responds to the call, the second changeover switch (8) (9) and the switch (
15) The base unit (1) and the slave unit (14) are connected via (16), and after receiving and receiving a predetermined control signal, the base unit (1) can transmit data to the slave unit (14). .

Next, the operation of transmitting data from the slave device (14) to the base device (1) will be explained.

First, the handset (14) hooks up, and when a predetermined key operation is performed to call the base unit (1), the hook-up detection circuit (
The control circuit (3) detects the hook-up of the slave unit (14) by the output of the control signal detection circuit (17), checks the output of the control signal detection circuit (1), and detects a control signal to call the base unit (1).
Connect the second changeover switch (8) (9) to the other fixed contact (8c)
(9c) side, and switch (15) (16).
) and do the same as above to connect the base unit (1) and slave unit (14).
Connect the line. At this time, line voltage is generated under the control of the line drive circuit (13), but no calling signal is generated. When the connection between the base unit (1) and the slave unit (I4) is established in this way, after a predetermined control signal is exchanged, the slave unit (14) transmits a signal to the base unit (1).

(G) Effects of the Invention As mentioned above, the facsimile device of the present invention is configured so that when the facsimile devices are connected to the external telephone connection terminal, communication can be performed between the connected facsimile devices, and the facsimile device of the present invention has practical effects. It is a big thing.

[Brief explanation of the drawing]

The drawing is a block diagram showing the configuration of a facsimile machine according to the present invention. (1)...Facsimile machine, (2)...Transmission/reception circuit, (3)...Control circuit, (6)(7)...First changeover switch, (8)(9)... second changeover switch,
(12)... Built-in telephone, (13)... Extension drive circuit, (14)... External device. Applicant: Sanyo Electric Co., Ltd. (1 other person) Representative: Patent attorney Takuji Nishino (2 others)

Claims (1)

[Claims] (1) means for detecting hook-up of an external device connected to an external telephone connection terminal of a facsimile machine, means for detecting a control signal from the external device, and an extension drive circuit for calling and activating the external device; a switching means for switching and connecting the external device to an outside line or facsimile machine;
A facsimile machine characterized by comprising a control means for controlling a switching means.