JPH0666867B2 - Digital analog analog equipment - Google Patents

Description

The present invention relates to a digital / analog facsimile apparatus which is connected to a digital network and performs G3 facsimile communication and G4 facsimile communication.

“Prior Art” Facsimile is classified into a G3 facsimile that connects and receives documents by connecting to an analog network, and a G4 facsimile that connects and receives documents by connecting to a digital network. A conventional digital / analog facsimile in which both of these facsimiles are combined is shown in FIG. This digital / analog facsimile device 11 includes an application unit 12 required for an operator to operate and a reading unit 1 for reading a document.
3, recording unit 14 for recording documents, MH encoding / decoding unit 15, G3 facsimile communication control unit 16, analog telephone 17, telephone / facsimile switching unit 18, analog network connection unit 19, MMR code handled in G3 facsimile communication Decoding / decoding unit 21, G4 facsimile communication control unit 22, digital telephone 23, digital network connection unit 24
Composed of analog network 25 and digital network 26, respectively.
Connected to a G3 fax machine 27, analog telephone 28, and G4
It communicates with the facsimile 29 and the digital telephone 31.

The reading unit 13 and the recording unit 14 are commonly used for G3 and G4 facsimiles.

The G3 facsimile communication and the G4 facsimile communication of the conventional digital / analog facsimile apparatus 11 will be described below.

When transmitting to the G3 facsimile 27, the operator first selects the G3 facsimile communication, designates the telephone number of the other terminal (facsimile 27) from the analog telephone 17, and through the analog network connection unit 19 and the analog network 25. Connect to the other terminal (facsimile 27). After that, the CED signal for notifying that it is a non-phone is received by the analog telephone 17 from the partner G3 facsimile 27 via the analog network 25 and the analog network connection unit 19, and the telephone / facsimile switching unit 18 receives the analog telephone. 17 and the G3 facsimile communication control unit 16 are switched, and the application unit 12 causes the reading unit 13, the recording unit 14, the MH encoding / decoding unit 15, and the G3 facsimile communication control unit.
16, Controls the analog network connection unit 19 to perform G3 facsimile communication.

Further, when receiving from the G3 facsimile 27, the telephone 17 receives an incoming call from the partner device via the analog network 27, and the telephone / facsimile switching unit 18 causes the analog telephone and the G3
The facsimile communication control unit 16 is switched, and the application unit 12 controls the reading unit 13, the recording unit 14, the MH encoding / decoding unit 15, the G3 facsimile communication control unit 16, the telephone / facsimile switching unit 18, and the analog network connection unit 19, respectively. Control and G
3 Start receiving the facsimile communication.

Next, when making a call to the G4 facsimile 29, the operator
Facsimile communication is selected, connection is established with the partner G4 facsimile 29 via the digital network 26, the response from the partner G4 facsimile 29 is received, and the application unit 12 reads the reading unit 13, the recording unit 14, and the MMR encoding / decoding. The conversion unit 21, the G4 facsimile communication control unit 22, and the digital network connection unit 24 are controlled to start G4 facsimile communication.

When receiving from the G4 facsimile 29, the incoming call from the partner G4 facsimile 29 is received by the G4 facsimile communication control unit 22 via the digital network 26 and the digital network connection unit 24, and the application unit 12 reads the reading unit 13, Recording unit 14,
The MMR encoding / decoding unit 21, the G4 facsimile communication control unit 22, and the digital network connection unit 24 are controlled to start G4 facsimile communication.

As described above, the conventional digital / analog facsimile apparatus 11 in which the G3 facsimile and the G4 facsimile are combined is connected to both the analog network and the digital network in order to execute both the G3 facsimile communication and the G4 facsimile communication. It was necessary, inefficient and uneconomical.
In addition, the operator must select whether the partner device is a G3 facsimile or a G4 facsimile to perform the calling operation. Therefore, the operator must identify whether the partner device is a G3 facsimile or a G4 facsimile by the telephone number. It was annoying to remember.

An object of the present invention is to provide a digital / analog facsimile apparatus which has both G3 facsimile communication control and G4 facsimile communication control, is connected only to a digital network, and enables efficient and economical G3 facsimile communication and G4 facsimile communication. To do.

"Means for Solving Problems" In the digital / analog facsimile apparatus of the present invention, it is connected only to the digital network, and the communication enable signal from the digital network and the fact that the partner apparatus is connected to the analog network are notified. A communication enabled / analog network connection signal identification unit for identifying a signal is provided, and when a communication enabled signal is received, the G4 facsimile communication control unit is activated, and when an analog connection signal is received, the G3 facsimile communication control unit is activated. It is operated automatically. The G3 facsimile communication control unit is connected to the digital network connection unit via the encoding / decoding unit.

In conventional digital / analog facsimile machines, G3
In order to perform both the functions of the facsimile and the G4 facsimile, it was necessary to connect one line to each of the analog network and the digital network, but in the present invention, one line is connected only to the digital network, and the G3 facsimile communication and the G4 facsimile are connected. Because communication can be realized, it is efficient and economical.
G3 facsimile communication and G4 facsimile communication can be performed. Also, the other device makes a call without judging whether it is a G4 facsimile or a G4 facsimile, and automatically sets the G3 facsimile and the G4 facsimile separately by the response signal from the digital network and starts communication. This is different from the conventional technique in that the operator does not have to perform a troublesome operation.

[Embodiment] FIG. 1 is a view showing an embodiment of the present invention, and a digital / analog facsimile apparatus 41 of the present invention is constituted by the following parts. Digital network connection unit that connects the digital / analog facsimile device 41 and the digital network 26
42, a communication enable / analog network connection signal identification unit that identifies a communication enable signal from the digital network 26 and an analog network connection signal
43, a PCM encoding / decoding unit 44 for converting an analog signal into a digital signal, a digital telephone 45, a G3 facsimile communication control unit 46 for controlling G3 facsimile communication by the digital / analog facsimile device 41, and a G3 facsimile communication. MH encoding / decoding unit 47 for encoding / decoding image data to be used, G4 facsimile communication control unit 48 for controlling G4 facsimile communication by digital / analog / facsimile apparatus 41, and code of image data used for G4 facsimile communication An MMR encoding / decoding unit 49 for performing encoding / decoding, an image data reading unit 51, an image data recording unit 52, and an application unit 53.

In the case where the digital network 26 is connected to the analog network 55 through the digital relay network 54, the digital network 26 accommodates the G4 facsimile 29 and the digital telephone 31, and the analog network 55 accommodates the G3 facsimile 27 and the analog telephone 28. is there.

FIG. 2 shows an example of a sequence of calling and receiving operations between the G4 facsimile 29 and the digital / analog facsimile apparatus 41 of the present invention.

Calling Operation to G4 Facsimile As shown in FIG. 2, the digital / analog facsimile apparatus 41 sends a call request for using the digital network 26 from the digital / analog facsimile apparatus 41 to the digital network 26. In the digital network 26, a dial enable signal that permits transmission of a dial signal in response to the call request is sent via the digital network connection unit 42, the communication enable / analog network connection signal identifying unit 43, and the PCM encoding / decoding unit 44. Digital telephone
Notify 45.

In response to this, the digital telephone 45 sends the dial signal of the partner device (facsimile 29). This dial signal is sent to the digital network 26 via the PCM coding / decoding section 44, communication enabled / analog network connection signal identification section 43, and digital network connection section 42.
Will be notified to.

Upon receiving the dial signal, the digital network 26 notifies the G4 facsimile 26 of the incoming call request. FIG. 2 shows a case where the digital network 26 is constructed as a digital network-digital relay network-digital network.

The G4 facsimile 26 notifies the digital network 26 of an incoming call response for notifying that the incoming call is accepted in response to the incoming call request.

In response to the incoming call response, the digital network 26 notifies the digital / analog facsimile device 41 of a communication enable signal for starting G4 facsimile communication.

The digital / analog facsimile device 41 receives the communication enable signal and starts G4 facsimile communication.

If an analog network connection signal is received instead of the communication enable signal, the digital / analog facsimile device 41
Starts G3 facsimile communication.

In this way, the digital / analog facsimile device 41
When communicating with the G4 facsimile 29 via the digital network 26, receives the communication enable signal from the digital network 26 and starts the G4 facsimile communication.

Incoming Call Operation from G4 Facsimile FIG. 3 shows a sequence example of this incoming call operation. In the digital / analog facsimile device 41, the digital network 26
When the incoming call request is received from, the incoming call request is sent to the communication enabled / analog network connection signal identifying unit 43 via the digital network connecting unit 42. The communicable / analog network connection signal identifying section 43 identifies whether the partner device is connected to the digital network or the analog network. When connected to a digital network, it identifies whether the telephone is being called or the G4 facsimile is being called, and when making a telephone call, the digital telephone 4 is connected via the PCM encoding / decoding unit 44.
Notify the incoming call request to 5 and make a call. Also, the other device is G
In the case of 4 facsimile 29, the application unit 53 controls the reading unit 51, the recording unit 52, the MMR encoding / decoding unit 49, the G4 facsimile communication control unit 48, and the digital network control unit 42 to control the G
4 Start the receiving operation from the facsimile 29.

Calling operation to G3 facsimile Fig. 4 shows a sequence example of the calling operation to G3 facsimile. A call request for using the digital network 26 from the digital / analog facsimile device 41 is digitally transmitted.
The analog facsimile apparatus 41 notifies the digital network 26.

In the digital network 26, a dial enable signal for permitting transmission of a dial signal in response to the call request is sent via the digital network connection unit 42, the communication enable / analog network connection signal identifying unit 43, and the PCM encoding / decoding unit 44. Notify the digital telephone 45.

In response to this, the digital telephone 45 sends the dial signal of the partner device (G3 facsimile 27). This dial signal is sent to the digital network 2 via the PCM coding / decoding section 44, communication enabled / analog network connection signal identification section 43, and digital network connection section 42.
6 will be notified.

The digital network 26 notifies the digital relay network 54 of the address signal obtained by mapping the dial signal of the G3 facsimile.

Upon receiving the address signal, the digital relay network 54 returns to the digital network 26 a progress display device for notifying the digital network 26 that the partner device is connected to the analog network.

In the digital network 26, the progress display signal is received, and communication is possible via the digital network connection unit 42. An analog network connection signal is sent to the analog network connection signal identification unit 43 to confirm that the partner device is connected to the analog network. Notice.

In the communicable / analog network connection signal identifying unit 43, the communication mode of the digital / analog facsimile device 41 is automatically set to G3 facsimile communication, and the communication with the G3 facsimile 27 is notified. The connection enable signal is sent to the digital network 26.

In response to this, the digital network 26 receives the digital relay network 54.
And a call setting instruction signal for making a connection between the digital relay network 54 and the analog network 55. In response to this, the digital relay network 54 notifies the analog network 55 of an address signal for calling the G3 facsimile 27 in which the dial signal is mapped. The analog network 55 notifies the G3 facsimile 27 of an incoming call request signal for notifying that there is an incoming call. After this, digital / analog facsimile machines
In 41, the application unit 53 causes the reading unit 51, the recording unit 52, the MH encoding / decoding unit 47, and the G3 facsimile communication control unit.
The G3 facsimile transmission operation is started by identifying the 46, the PCM encoding / decoding unit 44, the communication / analog network connection signal identification unit 43, and the digital network connection unit 42.

When a communication enable signal is received from the digital network 26,
Move to G4 facsimile communication shown in FIG.

In this way, G3 is transmitted via the digital network 26 and the analog network 55.
When calling to the facsimile 27, the analog network connection signal from the digital network 26 is received, the communication mode is set to G3 facsimile communication, and the connection enable signal for connecting to the analog network is sent to the digital network 26. Then, the G3 facsimile 27 is connected and the G3 facsimile communication is started.

Incoming Call Operation from G3 Facsimile FIG. 5 shows a sequence example of an incoming call operation from a G3 facsimile. The G3 facsimile 27 receives an incoming call to the communicable / analog network connection signal identifying unit 42 via the analog network 55, the digital relay network 54, the digital network 26, and the digital network connecting unit 42. The communicable / analog network connection signal identifying section 42 identifies whether the calling terminal is a terminal connected to the digital network or a terminal connected to the analog network.

When the calling terminal is identified as a terminal connected to the analog network and the digital / analog facsimile device 41 is set in the telephone in advance, the digital telephone 45 is notified of the incoming call, and the digital telephone 45 performs the call. . Further, when it is set to the facsimile, the G3 facsimile communication control unit 46 is notified and the G3 facsimile receiving operation is performed.

When the calling terminal is identified as the terminal connected to the digital network, the process shifts to the G4 facsimile communication in FIG.

Thus, by using the present invention, digital
By connecting the analog facsimile machine only to the digital network, G3 facsimile communication and G4 facsimile communication can be realized according to the partner device.

"Effects of the Invention" As described above, in the digital / analog facsimile apparatus having both the G4 facsimile communication control and the G3 facsimile communication control, the present invention provides encoding / decoding for performing G3 facsimile communication using a digital network. Section and a communication enable / analog network connection signal identifying section for distinguishing between an analog network connection signal from the digital network and a communication enable signal, the communication mode of the communication partner is automatically set to G3 facsimile or G4 facsimile. It is possible to identify and control communication according to the communication mode.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration example of a digital / analog facsimile apparatus of the present invention, FIG. 2 is a diagram showing a sequence example when a call is made to a G4 facsimile using the apparatus of the present invention, and FIG. FIG. 4 is a diagram showing a sequence example in the case of making an incoming call from a G4 facsimile using the device of the present invention; FIG. 4 is a diagram showing a sequence example in the case of making a call to a G3 facsimile using the device of the present invention; FIG. 5 is a diagram showing a sequence example when an incoming call is made from a G3 facsimile using the apparatus of the present invention, and FIG. 6 is a diagram showing a G3 / G4 facsimile communication mode using a conventional digital / analog facsimile apparatus. is there.

Claims (1)

[Claims] 1. A digital network connecting section for connecting a digital network and a digital analog facsimile, a communication enable / analog network connection signal identifying section for identifying a communication enable signal from the digital network and an analog network connection signal, and a telephone call. Connected to the digital telephone that performs the G3 facsimile communication, the G3 facsimile communication control unit that performs the G3 facsimile communication, and the digital telephone and the G3 facsimile communication control unit and the communication enabled / analog network connection signal identification unit, and converts the analog signal into a digital signal. Encoding / decoding unit, MH encoding / decoding unit used for G3 facsimile communication connected to the G3 facsimile communication control unit, and G4 connected to the communication enabled / analog network connection signal identification unit.
Common to the G4 facsimile communication control unit for performing facsimile communication, the MMR encoding / decoding unit used for G4 communication connected to the G4 facsimile communication control unit, the MH encoding / decoding unit and the MMR encoding / decoding unit An image data reading unit and an image data recording unit that are connected to each other, and an application unit for making a connection, and a digital interface that enables G4 facsimile communication and G3 facsimile communication by connecting to a digital network. Analog facsimile machine.