JPH01268237A - Automatic transferring system for fully duplexed facsimile - Google Patents

Abstract

PURPOSE:To improve the speed of multi-address communication by causing one set of receiving-side facsimile terminal equipment to transmit data to one of the remaining sets of opposite-side facsimile terminal equipment while the receiving-side terminal equipment receives the data of transmitting-side facsimile terminal equipment from the transmitting-side facsimile equipment or one set of receiving side facsimile equipment. CONSTITUTION:One set of receiving side facsimile terminal equipment 2 performs multi-address communication by repeating data transmission to one of the remaining sets ot opposite-side facsimile terminal equipment 2 while the terminal equipment 2 receives the data of transmitting-side facsimile terminal equipment 1 from the terminal equipment 1 or one set of receiving-side facsimile terminal equipment 2. In such way, each set of facsimile terminal equipment transmits received facsimile data as they are to the next set of facsimile terminal equipment while each set of terminal equipment receives the data by using the two channel (channel B) of the basic interface of on ISDN. Thus the data transmitted from one set of facsimile terminal equipment are automatically transferred among plural sets of facsimile terminal equipment in chain-reacting and multi address communication can be realized in a short time.

Description

[Detailed Description of the Invention] [Table of Contents] Overview Industrial Application Fields Prior Art and Problems to be Solved by the Invention Means for Solving the Problems Actions Embodiments Effects of the Invention [General I] In the call setup message A facsimile machine that uses a communication network (e.g., Integrated Services Digital Network (ISDN)) that is equipped with a means for transmitting arbitrary information from a calling device to a called device, and has at least two channels that can transmit and receive data simultaneously. Regarding the broadcast communication method in communication, the aim is to perform high-speed broadcast communication in facsimile communication, and each facsimile terminal selects one of the multiple destination facsimile terminals to be broadcast, and sends a message to the remaining destination facsimile terminals. A means for setting and transmitting a destination table in which destination numbers are registered in the above-mentioned call setting message, and a method for selecting one destination from the destination table in the above-mentioned call setting message at the time of receiving a call, and transmitting the rest to the other party's facsimile terminal. A method for setting and transmitting a destination table in which the destination number of the other party's facsimile terminal is registered in the above-mentioned call setup message, and using the receiving-side channel and the sending-side channel set by the above-mentioned outgoing/receiving call, to receive from the receiving-side channel. The data that was
means for immediately transmitting the data to the sending-side facsimile terminal, and one receiving-side facsimile terminal receives data from the sending-side facsimile terminal from the sending-side facsimile terminal or one receiving-side facsimile terminal. However, data is transmitted to one of the remaining facsimile terminals on the other party's side to perform broadcast communication.

[Industrial application field]

The present invention provides a means for transmitting arbitrary information from a calling device to a terminating device provided in a call setup message, and a communication network, such as a service integrated digital network, that is equipped with at least two channels that can transmit and receive information simultaneously. (ISDN)
This paper relates to a broadcast communication method in facsimile communication using .

With recent advances in facsimile communication technology, the number of facsimile terminals has increased, and when broadcasting from one facsimile terminal to multiple facsimile terminals, the increase in communication costs has become noticeable. Therefore, there is a need for a facsimile communication system that can perform high-speed broadcast communication using as little hardware as possible.

[Prior art and problems to be solved by the invention] FIG. 3 is a diagram illustrating a conventional facsimile broadcast communication system.
(a) shows a conceptual diagram, and (b) shows an operation time chart.

In conventional facsimile communication, as shown in Fig. (a), when broadcast communication is performed to multiple facsimile terminals (1), (2), (3) 2 using the telephone network 3,
This was accomplished by repeating the call setup, data communication, and call disconnection procedures for each of the other party's facsimile terminals (1), (2), and (3).

Therefore, in order to finish sending to all the other party's terminals 2, (b)
As shown in the time chart in the figure, (one communication time)
There was a problem in that it took time equal to x (number of communication partners).

On the other hand, the integrated service digital network (hereinafter referred to as 15DN network), which is being standardized by the Consultative Committee for International Telegraph and Telephone (CCITT), has multiple channels (for example, 2B+D channel, 23B+D channel, etc.)
However, B channel: 64 kbps, D channel: 1
6 kbps)) can be used at the same time, it is now possible to send data to the other party's terminal 2 for the number of channels at the same time on one line, and the communication speed is faster (
(for example, 64 kbps), it has become possible to perform broadcast communications in a short time.

However, simply increasing the number of channels increases the equipment cost and communication costs of the facsimile terminal, which is not practical for a facsimile terminal, and it is desirable to keep the number to the minimum necessary.

Therefore, as a facsimile terminal, it is realistic to use the r2B+, D channel, which is the basic interface of the above-mentioned 15DTL network, but as mentioned above, the number of other party terminals 2 without repeat communication increases. However, even if two B channels were used at the same time, the conventional method of repeating transmission sequentially for each partner terminal 2 had a problem in that it took a long time.

The present invention has been developed in view of the above-mentioned conventional drawbacks. For example, in an I5DN network, arbitrary information can be transmitted from a calling device to a called device in a call setup message, and two channels ( The object of this invention is to provide an automatic transfer system for full-duplex facsimile that can perform high-speed broadcast communication, focusing on the fact that the B channel can be used.

[Failure to solve the problem]

FIG. 1 is a diagram illustrating the principle of the automatic full-duplex facsimile transfer system of the present invention.

The above-mentioned problems are solved by a repeat communication system configured as follows.

In the call setup message ■, from the calling device 1 to the called device 2
a communication network equipped with means for transmitting arbitrary information to and equipped with at least two channels capable of transmitting and receiving at the same time;
For example, in a facsimile terminal 12 in facsimile communication using the 15DN network 3, a destination table is created in which one of the plurality of destination facsimile terminals 2 to be broadcast is selected and the destination numbers of the remaining destination facsimile terminals 2 are registered. A method for setting (■) in the above call setting message (■) and sending it, and when a call is received, one destination is selected from the destination table (■) in the above call setting message (■), and the remaining destinations are sent to the other party's facsimile terminal 2. A means for setting and transmitting the destination tenable ■ in which the destination number of the facsimile terminal 2 is registered in the above call setting message ■, and using the receiving side channel and the sending side channel set by the above calling/receiving call, from the receiving side channel. means for immediately transmitting the received data to the transmitting side channel, and in one receiving side facsimile terminal 2, the data from the transmitting side facsimile terminal 1 is transmitted from the sending side facsimile terminal 1 or to one receiving side facsimile terminal 2. The configuration is such that broadcast communication is performed by repeatedly transmitting data to one of the remaining facsimile terminals 2 while receiving data from the facsimile terminal 2 on the other side.

[Effect]

That is, according to the present invention, in a full-duplex facsimile terminal capable of transmitting and receiving operations simultaneously, two channels (B channels) of the basic interface of the I5DNI are used.
Each facsimile terminal receives the facsimile data and then sends the data to the next facsimile terminal, so that data sent from one facsimile terminal is automatically transferred between multiple facsimile terminals in a chain. By doing so, it is possible to realize circular communication in a short time.

For example, in the rsDNI, a "user information" element is defined in the call setup message that allows arbitrary information to be transmitted from the calling side device to the called side device. (See Figure 1(C)) In the present invention, the destination table (see Figure 1(d)) in which the number of the other party's facsimile terminal to be forwarded is registered is created using the "user information" in the call setup message. and then transfer it directly to the recipient's facsimile terminal.

The receiving facsimile terminal (hereinafter referred to as FAX) selects one destination FAX to be transferred next from among the destination messages received at the time of setting up the call, and sends the following message to that FAX:
The destination table in which the remaining party's FAX numbers are registered is set in the "user information" in the call setting message in the same way as above, and the call is set up.

FA for which the above operation is registered in the first destination table
This is done in a chain between X.

The FA that first called the final fax to the destination table
If you register X's own fax number, a call will be sent to you and you will be able to send the same fax to all recipients.
It is possible to recognize that a call has been set up in between.

In the present invention, reception and transmission are performed in parallel using two channels: a reception channel set by an incoming call and a transmission channel set by a single call.

In other words, facsimile data received from the receiving channel is immediately transferred to the next fax on the transmitting channel via a bypass circuit installed in the fax machine, so that reception and transmission are performed in parallel on each fax machine. This has the advantage that facsimile data can be sent to all faxes to be sent in a short period of time.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

The above-mentioned FIG. 1 is a diagram explaining the principle of the automatic transfer system of the full-duplex facsimile of the present invention, in which (a) shows a conceptual diagram, (b) shows an operation time chart, and (c) shows an operation time chart. An example of the call setup message ■ is shown, and (d) is the destination table ■
FIG. 2 is a diagram showing an example of the configuration of a facsimile terminal according to an embodiment of the present invention, and FIG. 1(c)
From the means 19 and 17 for setting the destination table ■ shown in FIG. 1(d) in the "user information" element in the call setting message ■ shown in FIG.
Select one of the next forwarding destinations and create the destination table ■ in which the remaining fax numbers are registered for that destination as described above.
Means 100, 19 for setting in the "User User Information" element
．． 17. and means 112 for immediately transmitting facsimile data received from the receiving channel to the transmitting channel.
．． 113.111 are the means necessary to carry out the present invention.

The facsimile broadcast communication system according to the present invention will be explained below with reference to FIG. 1 and FIG. 2.

In this embodiment, explanation will be given by taking an integrated service digital network (ISDN network) 3 as an example.
It is not limited to the network, but it is possible to provide a means for transmitting arbitrary information from the calling device 1 to the called device 2 in the call setup message 2, and to enable at least simultaneous transmission and reception.
It goes without saying that any communication network may be used as long as it has two channels.

In FIG. 2, reference numeral 11 multiplexes the bits of the "D channel" and "B channel", which are the basic interfaces of the 15DNH3, and sends the multiplexed bits to the transmission path, and the bit string received from the transmission path is the "D channel".

and a physical level control unit that decomposes the signal into bits of the “B channel”.

And 19.100. and 113 are parts added in the present invention, 19 is a creation part of the destination table ■ which registers the recipient's fax number to be broadcast, 100 is a part that analyzes the received destination table ■, and 113 is a part that analyzes the received destination table ■. This is the part that passes facsimile data received from the side B channel to the sending side B channel.

First, from FAX (0) 1 to FAX (1
) to FAX (3) 2 will be used as an example to explain the present invention in detail.

In FAX (0) 1, a plurality of destination FAX numbers (for example, accession number in 15DNW4) given from the input/output section 15 are stored in the destination table creation section 19 of the call control section 13 in the form of a destination table (■). (see FIG. 1(d)) and delivered to the message creation section 17.

In the message creation section 17, the destination table (2) is set as the "user information" of the call setting message (see FIG. 1(c)), and the D channel control section 12. The signal is sent to the transmission path of the 15DN network 3 via the physical level control unit 11.

The [user information] of the sent call setting message ■ is sent via the 15DN network 3 as the destination of the call setting message ■ (the ``called number'' information element and the ``called subaddress'' information element, not shown). Set fax (1)
Passed to 2.

In the FAX (1) 2, the above-mentioned call setting message ■ from the 15DN network 3 is sent to the physical level control unit 11. Through the D channel control unit 12, the message analysis unit 18 of the call control unit 13
The destination table ■ that is analyzed and set as the “user information” is analyzed by the destination table analysis unit
passed to.

The destination table analysis unit 100 enters the recipient's FAX number in the destination table (2), FAX (3), and so on.
2゜=14- and the sender FAX (0) 1 are registered, so select FAX (2) 2 from among them, for example,
Instructs the destination table creation unit 19 to create a destination table ■ in which the remaining FAX (3) 2 and FAX (0) 1 are set, and also instructs that a call should be made to FAX (2) 2. An instruction is given to the call control basic unit 16.

If FAX (1) 2 is received (incoming call) the call setting message ■ from the above FAχ (0) 1, the FAX (
0) Exchange call setup procedures with 1, and
Start facsimile communication using "channel".

Also, in parallel with this operation, in the FAX (1) 2, F
ΔX(2) For 2, the destination table creation unit 19
Set the destination table ■ created in step 1 as the "user information" of the call setup message ■, send the call setup message ■ addressed to FAX (2) 2, and send the call setup message ■ to the FAX (2) 2.
A call setup procedure similar to the exchange of call setup messages between FAX (Q) 1 and FAX (1) 2 is started between FAX (Q) 1 and FAX (1) 2.

As a result of the above operations, FAX(1) 2 is set to FAX(0
) The reception of facsimile data is started by one B channel from B channel receiving section 112 . The received data is passed through the received data control section 115 to the input/output section 15, where the received data is output.

At this time, the received data passes through the bypass section 113 of the present invention and is sent to FAX (2) via a B channel different from the above.
The signal is passed to the B channel transmitter 111 for transmission to the B channel transmitter 111.

In this way, in said FAX (1) 2, facsimile data from FAX (0) 1 received from one B channel is immediately faxed using another B channel (
2) Sent to 2.

Similarly, for FAX(2) 2, FAX(1) 2
Send the received data from FAX (3) 2. In this example, FAX (3) 2 is the last destination FAX, but for confirmation, the first sender FAX (0)
Send call setup message ■ to 1.

In this case, FAX (0) 1 may accept the call and receive the facsimile data it sent, or if it is sufficient to confirm that the facsimile data has completed one cycle,
A rejection message may be sent to FAX (3) 2 to reject the call.

As described above, the present invention provides, for example, a means for the rsDN network to transmit arbitrary information from the calling side device to the called side device provided in the call setup message (1), and at least two channels that can transmit and receive simultaneously. Focusing on the fact that the communication network is equipped with
When receiving a fax, select one of the destination faxes in the destination table ``■'' as the destination fax, and use the destination table ``■'' in which the remaining fax numbers are registered as the ``user user information'' in the call setup message ■. '' and setting up the call is repeated in a chain to set up a call with all the destination faxes to which broadcast communication is to be made, and also to send the faxes received on the receiving channel obtained by setting up the call. The feature is that all receiving faxes immediately transfer data to the next fax using the sending channel.

〔Effect of the invention〕

As described above in detail, the full-duplex facsimile automatic transfer system of the present invention includes means for transmitting arbitrary information from the calling device to the called device in the call setup message, and at least A communications network with two channels that can transmit and receive simultaneously, such as an integrated services digital network (
In the broadcast communication method for facsimile communication using ISDN), each facsimile terminal has a destination table in which one of the multiple destination facsimile terminals to be forwarded is selected and the destination numbers of the remaining destination facsimile terminals are registered. A means for setting and transmitting the call setting message, and when receiving a call, selecting one destination from the destination table in the call setting message, and transmitting the destination numbers of the remaining facsimile terminals to the other party's facsimile terminal. Using the method of setting and transmitting the registered destination table in the call setup message described above, and the receiving channel and transmitting channel set by the above call, the data received from the receiving channel is immediately sent to the transmitting channel. means for transmitting the data from the transmitting facsimile terminal to the transmitting facsimile terminal at one receiving facsimile terminal.

Alternatively, broadcast communication is performed by receiving data from one receiving facsimile terminal and transmitting data to one of the remaining facsimile terminals, so each facsimile terminal can receive and send data. Since this is done in parallel using separate channels, it has the advantage of being able to achieve the same functionality as broadcast communication in a short time.

[Brief explanation of the drawing]

FIG. 1 is a diagram explaining the principle of the automatic full-duplex facsimile transfer system of the present invention. FIG. 2 shows an example of the configuration of a facsimile terminal according to an embodiment of the present invention. FIG. 3 is a diagram illustrating a conventional facsimile broadcast communication system. It is. In the drawings, 1 is a sending facsimile terminal (FAX(0)), or a calling device, or simply a facsimile terminal. 2 is the receiving facsimile terminal (FAX (1), F
AX (2), FAX (3), -J, or other party's facsimile terminal, or simply the other party's terminal, or facsimile terminal. 3 is Integrated Services Digital Nil (ISDNI). 3' is the telephone network. 11 is a physical level control section, and 12 is a D channel control section. 13 is a call control section; 14 is a B channel control section. 15 is an input/output section, and 16 is a basic call control section. 17 is a message creation section, and 18 is a message analysis section. 19 is a destination table creation unit. 100 is a destination table analysis unit. 111 is a B channel transmitter. 112 is a B channel receiving section. 113 is a bypass section, and 114 is a transmission data control section. 115 is a reception data control unit. ■ is a call setup message, and ■ is a destination table. Color:]]]:::to ■

Claims (1)

[Claims] In the call setup message ([1]), there is provided a means for transmitting arbitrary information from the calling side device (1) to the called side device (2), and at least two pieces of information that can be sent and received simultaneously are provided. In facsimile communication using a communication network (3) equipped with a channel, one of the plurality of destination facsimile terminals (2) to be broadcast is selected to the facsimile terminals (1, 2), and the remaining destination facsimile terminals (2) are selected. The destination table ([2]) in which the destination numbers of 2) are registered is sent to the above call setup message ([1]
) and transmitting means (19, 17) that selects one destination from the destination table ([2]) in the call setup message ([1]) when receiving a call, and sends it to the other party's facsimile terminal (2). ), the destination table ([
2]) in the call setup message ([1]) and transmitting the message (100, 19, 17), and the receiving side channel and sending side channel set by the above call origination/reception. means (112, 113, 111) for immediately transmitting data received from the channel to the transmitting channel;
One receiving facsimile terminal (2) transfers data from the sending facsimile terminal (1) to the sending facsimile terminal (1) or one receiving facsimile terminal (2). A full-duplex facsimile automatic transfer system characterized in that broadcast communication is performed by repeatedly transmitting data to one of the remaining facsimile terminals (2) while receiving data from the facsimile terminal (2).