JPH0787522B2 - Fax system - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a facsimile system for transmitting an image signal via a simplex line network, and particularly to performing facsimile communication via a simplex line network using a general-purpose facsimile. The present invention relates to a facsimile system capable of performing.

[Technical background of the invention]

In recent years, there is a system that transmits and receives a facsimile signal by using a single 60 MHz wireless line. In such a system, a facsimile machine having a simplex transmission mode is installed on the transmission side, and a facsimile machine having a simplex reception mode is installed on the reception side. Then, the transmission side uses the above line to call the reception side to establish the line, and after the line setting is completed, the image signal is transmitted.

[Problems of background technology]

However, in the facsimile system for performing this simplex communication, as described above, a special facsimile apparatus is required which has a simplex transmission mode and a simplex reception mode on the transmitting side and the receiving side, respectively. Such a special facsimile machine is, for example, the International Telegraph and Telephone Advisory Committee (CCIT
It was manufactured by drastically modifying a general-purpose facsimile machine conforming to international standards, such as a facsimile machine having a group 3 machine function (hereinafter abbreviated as GIII machine) specified in T). For this reason, it becomes very expensive, and if it is modified for one-sided simplex communication, it becomes an old model in several years due to the replacement of the general-purpose facsimile device, and the product life is short.

[Object of the Invention]

An object of the present invention is to provide a facsimile system capable of performing facsimile communication via a simplex line network using a general-purpose facsimile complying with international standards.

[Outline of Invention]

In order to achieve the above object, the present invention provides a facsimile system for transmitting an image signal from a transmitting side facsimile device to a receiving side facsimile device via a simplex line network, wherein the transmitting side facsimile device and the simplex line network are provided. And is driven by a simplex display signal from the simplex line network, activates the transmitting side facsimile device, and sends a facsimile procedure signal output from the transmitting side facsimile device to the simplex line network. The receiving side is connected between the first adapter device for selectively outputting, the receiving side facsimile device and the simplex line network, and is driven by a simplex display signal from the simplex line network, The facsimile machine is started and synchronized with the facsimile procedure signal from the first adapter machine provided through the simplex network. A second adapter device for transmitting and receiving a predetermined facsimile procedure signal to and from the receiving side facsimile device, wherein the transmitting side facsimile device and the receiving side facsimile device are constituted by general purpose facsimile devices. To do.

Example of Invention

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In the figure, reference numeral 1 is a transmitting side facsimile machine installed on the transmitting side in simplex communication, and 2 is a receiving side facsimile machine installed on the receiving side. These transmitting side facsimile device 1 and receiving side facsimile device 2 are
Each uses a general-purpose facsimile machine that complies with international standards such as GIII machines. Reference numeral 3 denotes a line network which includes an exchange and the like, and selects a signal transmitted from the transmission side facsimile apparatus 1 through the line 4 and transmits the signal by selecting the reception side facsimile apparatus 2.

Further, a transmitting side facsimile device 6 is interposed between the transmitting side facsimile device 1 and the line 4, and a receiving side adapter device 7 is interposed between the receiving side facsimile device 2 and the line 5.

FIG. 2 is a block diagram showing the configuration of the transmission side adapter device 6. In the figure, the sending side facsimile machine 1
For normal communication, the relay switches 11 and 12a, 12b are connected to the terminal A, respectively. Then, the procedure signal accompanying the transmission operation of the image signal output from the transmission side facsimile apparatus 1 is transmitted to the line 4 via only the level converter 13. When the sender number is dialed from the sender side now, the line side (line network 3) determines whether it is normal individual communication or simplex communication according to the partner number, and if it is simplex communication, both the sending side and the receiving side The simplex display signal TAN is output to the facsimile machine.

On the other hand, reference numeral 14 in the figure is a control unit, and when the simplex display signal TAN is input from the line side (not shown), the relay switches 1
Switch 1, 12a, 12b to the contact B side. Then, after receiving the response signal from the partner terminal, the communication switch of the transmitting side facsimile apparatus 1 is pushed. After that, the adapter device 6 sends a pseudo procedure signal to the facsimile device 1 to start transmission.
When the transmission side facsimile device 1 starts transmission, predetermined procedure signals are output in association with the image signal transmission operation, and these procedure signals are detected by the procedure signal detection unit 16 and given to the control unit 14. The control unit 14 controls the facsimile side procedure signal sending unit 17 in accordance with the procedure signal output from the procedure signal detection unit 16 to send back a predetermined procedure signal to the transmission side facsimile apparatus 1 and also to the line side. The procedure signal transmission control unit 18 is controlled to selectively transmit the procedure signal from the transmission side facsimile apparatus 1 to the line 4. In the figure, 19a and 19b are hybrid transformers.

FIG. 3 is a block diagram showing the configuration of the receiving side adapter device 7. In the figure, the receiving side facsimile device 2
For normal communication, the relay switches 21 and 22a, 22b are connected to the terminal A, respectively. And
The procedure signal accompanying the receiving operation of the image signal transmitted via the line 5 is transmitted to the receiving side facsimile apparatus 2 via only the level converter 23.

On the other hand, reference numeral 24 in the figure is a control unit, which switches each of the relay switches 21, 22a, 22b to the contact B side when the simplex display signal TAN is inputted through the exchange control unit (not shown) of the line 5. Then, it controls the ringing signal sending section 25 to call up the 16 Hz ringing signal.
Output CAL. As a result, the calling signal CAL is given to the receiving side facsimile device 2 via the relay switch 21,
Thus, the receiving side facsimile device 2 is activated. When the receiving side facsimile apparatus 2 is activated, predetermined procedure signals are output in accordance with the image signal receiving operation. These procedure signals are detected by the facsimile side procedure signal detecting section 26 and stored in the control section 24. To be done. Further, a predetermined procedure signal from the transmission side is supplied from the line 5, and these procedure signals are detected by the line side procedure signal detector 27. Then, the control unit 24 is given to the control unit 24, and the control unit 24 controls the procedure signal transmission control unit 28 in synchronization with the procedure signal input from the line side procedure signal detector 27, and outputs a predetermined procedure signal to the receiving side facsimile device. It is supposed to be sent to 2. In the figure, 29a and 29b are hybrid transformers.

Next, a case of performing simplex communication in the present embodiment configured as described above will be described.

FIG. 4 is a diagram showing a line connection control procedure in the case of simplex transmission of two pieces of image data. In the case of simplex communication, the transmitting-side operator mounts a document for transmission on the document-mounting section of the transmitting-side facsimile apparatus 1, and then dials the other party with the telephone. Next, at the time of dial transmission, the receiving side facsimile device 2 of the simplex transmission destination is selected in the line network 3. Then, the simplex display signal TAN is transmitted from the line network 3 to the line 5 of the receiving side facsimile apparatus 2. The simplex display signal TAN is detected by the control section 24 of the receiving side adapter device 7, and the control section 24 is activated to switch the relay switches 21, 22a and 22b to the contact B side and press for simplex communication. The talk signal PT is turned on, and the call signal transmission unit 25 outputs the call signal CAL of 16 Hz to the facsimile machine 2 on the receiving side. As a result, the receiving side facsimile device 2 is activated. Here, the receiving side facsimile device 2 is in the automatic reception state and outputs the response signal CED and the digital identification signal DIS. The response signal CED and the digital identification signal DIS are sent to the transmission side adapter device 6 and the press talk signal PT is turned off. In addition, the procedure signal transmission unit 28 outputs a standby signal S2 of, for example, a tone signal for a maximum of 3 minutes or a 300 baud signal to the receiving side facsimile apparatus 2, and the receiving side facsimile apparatus 2 adjusts the time and a digital command from the transmitting side. The signal waits.

Then, a transmission command is given to the transmission side facsimile apparatus 1 by pressing a facsimile communication button (not shown). On the other hand, the response signal CED sent from the reception side adapter 7 is detected by the control unit 14 of the transmission side adapter device 6, the control unit 14 is activated, and the relay switches 12a and 12b are switched to the contact B side to call. A pseudo DIS is output from the signal sending unit 15 to the sending facsimile machine 1. As a result, the line side procedure signal transmission control unit 18 outputs the standby signal S1 by the tone signal or the 300 baud signal to the line 5, and the line 5 enters the standby state.

When the output of the standby signal S1 is stopped, the transmitting side facsimile device 1 outputs the digital command signal DCS and further outputs the training check signal TCF. These digital command signal DCS and training check signal TCF
Is detected by the procedure signal detection unit 16 of the transmission side adapter device 6 and given to the control unit 14. The control unit 14 outputs the digital command signal DCS and the training check signal TCF to the line 4 as they are by controlling the line side procedure signal transmission control unit 18. As a result, the digital command signal DCS and the training check signal TCF are transferred to the network 3
Is sent to the line 5 of the transmission destination by the line side procedure signal detecting unit 27 of the receiving side adapter device 7 and is detected by the control unit 24.
Is output to. The control unit 24 controls the procedure signal transmission control unit 28 to stop the output of the standby signal S1 and directly outputs the digital command signal DCS and the training check signal TCF to the receiving side facsimile apparatus 2. Then, the receiving side facsimile apparatus 2 which has received the digital command signal DCS and the training check signal TCF outputs the reception preparation confirmation signal CFR. The reception preparation confirmation signal CFR is detected by the facsimile side procedure signal detection unit 26 and output to the control unit 24.

On the other hand, the control unit 14 of the transmission side adapter device 6 controls the facsimile side procedure signal transmission unit 17 by inputting the training check signal TCF and outputs the reception preparation confirmation signal CFR. As a result, the transmitting side facsimile apparatus 1 receives the reception preparation confirmation signal CFR output from the facsimile side procedure signal transmitting section 17, and transmits the first image data to the receiving side facsimile apparatus 2.

After that, the transmission side facsimile apparatus 1 outputs the multi-leaf signal MPS when the transmission of the first image data is completed. This multi-leaf signal MPS is also sent to the receiving facsimile machine 2 through the same route as the digital command signal DCS. When the transmitting side adapter sends the multi-plane signal MPS, it outputs a standby signal S3 of a tone signal or a 300 baud signal to the transmitting side facsimile apparatus 1, and the transmitting side facsimile apparatus 1 enters a standby state.

When the facsimile machine 2 on the receiving side correctly receives the first image data, it outputs a message confirmation signal MCF, and the message confirmation signal MCF is detected by the facsimile side procedure signal detecting section 26, and is sent to the control section 24. Remembered. The message confirmation signal MCF is output to the transmission side adapter 6 by turning on the press talk signal PT of the reception side adapter 7. After transmitting the message confirmation signal MCF, the press talk signal PT of the receiving side adapter 7 is turned off.

On the other hand, the control unit 14 in the transmission side adapter device 6 controls the facsimile side procedure signal transmission unit 17 by receiving the message confirmation signal MCF and outputs the message confirmation signal MCF.

The facsimile machine 1 on the sending side receives the message confirmation signal MCF.
When it receives, the training check signal TCF is output. The training check signal TCF is sent to the receiving side facsimile device 2 via the transmitting side adapter device 6 and the receiving side adapter device 7. In response to this, the receiving side facsimile device 2 sends a reception preparation confirmation signal CFR to the receiving side adapter 7. Further, the transmission side adapter device 6 sends a reception preparation confirmation signal CFR to the transmission side facsimile device 1 in response to the training check signal TCF. The transmission side facsimile device 1 receives the reception preparation confirmation signal CFR and transmits the second image data to the reception side facsimile device 2.

Then, the transmitting side facsimile apparatus 1 outputs the procedure end signal EPO at the time when the transmission of the second image data is completed. This procedure end signal EPO is also the digital command signal DCS.
The press talk signal PT is transmitted to the facsimile apparatus 2 on the receiving side through the same route as the above, and turns off the press talk signal PT. Here, the facsimile machine 2 on the receiving side outputs a message confirmation signal MCF when it correctly receives the second image data. This message confirmation signal MCF is detected by the facsimile side procedure detection unit 26, stored in the control unit 24, and again stored in the presto signal PT.
Turn on and off to keep the transmitter adapter 68.

On the other hand, the control unit 14 in the transmission side adapter device 6 controls the facsimile side procedure signal transmission unit 17 by inputting the message confirmation signal MCF to control the message confirmation signal.
The MCF is output to the facsimile machine 1. Also, the press talk signal PT is turned on. As a result, the transmitting side facsimile apparatus 1 receives the message confirmation signal MCF output from the facsimile side procedure signal transmitting section 17 and sends the line disconnection instruction signal DCN through the same route as the digital instruction signal DCS and the like. Send to device 2. As a result, the simplex communication is completed and the line 5 is restored to the normal communication state.

As described above, in this embodiment, the transmitting side facsimile apparatus 1 to which the general purpose facsimile apparatus is applied and the transmitting side adapter apparatus 6 for the line 4 are provided, and the receiving side facsimile apparatus 2 and the line 5 to which the general purpose facsimile apparatus is applied. And the receiving side adapter device 7 is provided between the two. Then, the procedure signal is transmitted and received between the transmitting side facsimile apparatus 1 and the transmitting side adapter apparatus 6, and the transmitting operation is performed between the transmitting side adapter apparatus 6 and the receiving side adapter apparatus 7. The procedure signal associated with the image signal receiving operation is transmitted between the receiving side facsimile apparatus 2 and the receiving side adapter apparatus 7 in synchronization with the selectively transmitting procedure signal associated with the transmitting operation. Signals are exchanged. Therefore, the simplex communication of the image signal becomes possible from the transmitting side facsimile apparatus 1 to the receiving side facsimile apparatus 2.

Thus, according to this embodiment, the transmitting side adapter device 6 is provided between the transmitting side facsimile device 1 and the line 4, and the receiving side adapter device 7 is provided between each receiving side facsimile device 2 and each line 5. Just by installing, a simplex communication of image signals is performed using a general-purpose facsimile machine that conforms to international standards such as GIII machines and has some expansion functions, without using a facsimile machine dedicated to simplex communication as in the past. It is possible (a slight extension function is a standby signal reception function). Therefore, it becomes possible to provide a facsimile system for simplex communication that is inexpensive and can have a long life.

The present invention is not limited to the above embodiment.
For example, in the above-described embodiment, the case where the GIII machine is used as the transmission side facsimile apparatus 1 is shown, but an already modified facsimile apparatus dedicated to simplex transmission may be applied. Also,
Although the transmitting side adapter device 6 and the receiving side adapter device 7 are individually configured in the above-described embodiments, the same circuit components may be commonly used and integrally configured.

〔The invention's effect〕

As described above in detail, according to the present invention, the transmission side facsimile apparatus is activated between the transmission side facsimile apparatus and the simplex line network after being driven by the simplex display signal from the simplex line network. At the same time, a first adapter device for selectively outputting the facsimile procedure signal output from the transmitting side facsimile device to the simplex line network is connected, and a simplex line is provided between the receiving side facsimile device and the simplex line network. After being driven by the simplex display signal from the network, the receiving side facsimile device is activated and the first line is provided via the simplex line network.
The second adapter device, which transmits and receives a predetermined facsimile procedure signal to and from the receiving side facsimile device in synchronization with the facsimile procedure signal from the adapter device, is connected and configured. The added general-purpose facsimile device can be used as it is, simplex communication of image signals can be performed, and an inexpensive facsimile system with a long life can be provided.

[Brief description of drawings]

1 to 4 are views showing an embodiment of the present invention,
FIG. 1 is a system diagram showing the configuration of this system, FIG. 2 is a block diagram showing the configuration of a transmitting side adapter device, FIG. 3 is a block diagram showing the configuration of a receiving side adapter device, and FIG. It is a figure which shows the connection control procedure of the line at the time of performing. 1 ... Sending side facsimile device, 2 ... Receiving side facsimile device, 3 ... Line network, 4,5 ... Line, 6 ... Sending side adapter device, 7 ... Receiving side adapter device, 14 ... Control unit , 15 …… Calling signal sending part, 16 …… Procedure signal detecting part,
7 ... Facsimile side procedure signal sending section, 18 ... Line side procedure signal sending section, 24 ... Control section, 25 ... Calling signal sending section, 26 ... Facsimile side procedure signal detecting section, 27 ... Line side procedure Signal detector, 28 ... Procedure signal transmitter.

Claims (1)

[Claims] 1. A facsimile system for transmitting an image signal from a transmission side facsimile device to a reception side facsimile device through a simplex line network, wherein the facsimile system is connected between the transmission side facsimile device and the simplex line network, After being driven by a simplex display signal from the simplex line network, the facsimile machine on the transmission side is activated and a facsimile procedure signal output from the facsimile machine on the transmission side is selectively output to the simplex line network. The receiving side facsimile device is connected between the first adapter device, the receiving side facsimile device and the simplex line network, and is driven by a simplex display signal from the simplex line network, and then the receiving side facsimile device is activated. At the same time, the reception-side fax is synchronized with the facsimile procedure signal from the first adapter device provided through the simplex line network. A second adapter device for transmitting and receiving a predetermined facsimile procedure signal to and from a millimeter device, and the transmitting side facsimile device and the receiving side facsimile device are constituted by general purpose facsimile devices. .