JPH0879424A - Simultaneous multi-address call incoming method for multi-address fax inside looped coaxial cable network - Google Patents

Abstract

PURPOSE: To provide a simultaneous multi-address call incoming method for multi-address FAX inside looped coaxial cable network with which simultaneous multi-address call incoming to plural pieces of FAX equipment is enabled in the case of multi-address FAX. CONSTITUTION: In the case of performing multi-address FAX among FAX terminals 15, 17 and 19 inside a looped coaxial cable network A, the FAX terminal 15 for a talker performs the FAX communication with dedicated equipment 14 corresponding to one-to-one communication protocol. The plural pieces of FAX equipment 17 and 19 for listeners simultaneously start call incoming corresponding to a start signal transmitted from the dedicated equipment 14 and a message from the FAX equipment 15 for talker is made incoming corresponding to one-to-N communication protocol due to the dedicated equipment 14. Afterwards, data communication terminals 13, 16 and 18 close the communication path so that response signals from the FAX terminals 17 and 19 for listeners can not arrive at the FAX terminal 15 for the talker, and the FAX 15 for the talker receives only the response signal from the dedicated equipment 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for simultaneous simultaneous call reception of broadcast FAX in a closed coaxial line network in which a FAX machine is connected to a coaxial line via a data communication device terminal.

[0002]

2. Description of the Related Art Conventionally, in a closed coaxial line network in which each of a plurality of FAX devices is connected to a coaxial line as a communication path via a data communication device terminal, a broadcast FAX in this closed coaxial line network is closed. Based on the one-to-one communication protocol between the fax machines in the coaxial line network, the fax machine for talker
Each FA in the FAX device for all listeners that is the destination of the message
By sequentially performing individual FAX communication by polling to the X device, the same electronic message from the talker FAX device is received by a plurality of listener FAX devices.

Therefore, in the closed coaxial line network, the broadcast FAX is used.
When performing the above, a message is transmitted from the talker FAX device to the listener FAX device one by one, and the same document of the message is received by a plurality of listener FAX devices.

[0004]

However, in the conventional broadcast FAX communication method in the closed coaxial line network as described above, the FAX machine for talkers uses the broadcast FAX to communicate with the FAX machines for a plurality of listeners. When transmitting a message, the talker FAX device sequentially polls individual FAX communication for each FAX device to all listener FAX devices that are destinations.

For this reason, the time required for the broadcast FAX increases in proportion to the number of listener FAX devices, and the broadcast FA increases.
There is a problem that the number of times of X and the existingness cannot be satisfied.

The present invention solves the above-mentioned problems of the prior art. In a broadcast FAX, a listener FAX device can make simultaneous incoming calls, and a talker FAX device can receive an incoming call from a dedicated device. Just by performing one-to-one FAX communication, at the same time, a message from the FAX machine for talker reaches the FAX machines for multiple listeners, and the communication time becomes the time required for normal one-to-one FAX communication. It is an object of the present invention to provide a method for simultaneous simultaneous reception of broadcast FAX in a closed coaxial line network which can be similarly performed.

[0007]

In order to achieve the above-mentioned object, the method of simultaneous broadcast simultaneous reception of a broadcast FAX in a closed coaxial line network according to the present invention is performed through a plurality of data communication equipment terminals connected via a communication path. In a closed coaxial line network for performing FAX communication between FAX devices provided corresponding to each of the plurality of data communication device terminals, when performing a broadcast FAX as the FAX communication, the FAX device corresponds to the FAX device. Based on a one-to-one communication protocol with the talker FAX device corresponding to the dedicated device, the dedicated device interposed between the data communication device terminal and the data communication device terminal sends out the talker FAX device. For a listener corresponding to each of the N data communication device terminals based on a 1: N communication protocol with the N data communication device terminals. A FAX machine, F for the talker
A method of simultaneously receiving the electronic message from the AX device and, after the simultaneous reception, causes each of the data communication device terminals to close the communication path to itself.

[0008]

According to the above method, the FAX in the closed coaxial line network
When performing a multi-address FAX between devices, the FAX device for talkers uses the F-to-F communication protocol to communicate with the dedicated device.
AX communication.

Fax devices for a plurality of listeners simultaneously receive and activate by an activation signal sent from a dedicated device, and receive a message from a fax device for talker by a 1: N communication protocol by the dedicated device.

After that, the data communication device terminal closes the communication path so that the response signal from the listener FAX device does not reach the talker FAX device, and the talker FAX device
The device receives only the response signal from the dedicated device.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A simultaneous FAX receiving method for a broadcast FAX in a closed coaxial line network according to an embodiment of the present invention will be described below with reference to a block diagram of a closed coaxial line network for realizing the simultaneous receiving method. .

First, the broadcast FA in the closed coaxial line network of the present invention.
The configuration of the closed coaxial line network for realizing the simultaneous X simultaneous incoming method will be described. FIG. 1 is a block diagram of a closed coaxial line network for realizing a simultaneous broadcast receiving method of a broadcast FAX in the closed coaxial line network of this embodiment. In FIG. 1, 11 is a center device for controlling the line of the closed coaxial line network A, 13,
Reference numerals 16 and 18 denote data communication device terminals that perform data communication with each other in the closed coaxial line network A, 14 denotes a dedicated device for broadcast FAX, and 15, 17 and 19 denote data communication device terminals 1.
A FAX device that performs FAX communication via 3, 16, and 18,
Reference numeral 12 is a coaxial line as a communication path to which the data communication device terminals 13, 16 and 18 and the center device 11 are connected and which transmits data for the center device 11 to perform line control and data for FAX communication.

Next, the broadcast FA in the closed coaxial line network of the present invention.
The simultaneous simultaneous call reception method of X will be described based on the operation of the closed coaxial line network A shown in FIG. In FIG. 1, FAX
The device 15 performs a broadcast FAX call operation, and the data communication device terminal 13 transmits a call request to the center device 11 through the coaxial line 12. The center apparatus 11 uses the data communication device terminal 13 as a talker to transmit the line instruction of the broadcast FAX to all the data communication device terminals 13, 16 and 18.

The data communication device terminal 13 is in the transmitting state on the designated line, and the data communication device terminals 16 and 18 are in the receiving state on the designated line. In this state, the broadcast FAX dedicated device 14 starts training with the talker FAX device 15 according to a one-to-one communication protocol, and the broadcast FAX target N units (here, two units are set). As will be described), a start signal is sent to the FAX devices 17 and 19 for listeners (described below) by a 1: N communication protocol to start up. The training signal sent from the talker FAX device 15 reaches the listener FAX devices 17 and 19 to perform training. In addition, the listener FAX devices 17, 1
The response signal from 9 is stopped by the data communication device terminals 16 and 18, and does not reach the talker FAX device 15. A response device to the talker FAX device 15 is output by the broadcast FAX dedicated device 14.

Next, the transmission data from the talker FAX machine 15 is sent to the listener FAX machines 17, 19.
Enter the end communication protocol. The end is performed between the talker FAX device 15 and the broadcast FAX dedicated device 14 as in the training, and the listener FAX device 17,
19 receives the end signal sent from the talker FAX machine 15 and ends.

As described above, according to the operation of the above-described embodiment, the same fax is simultaneously sent to the plurality of listener FAX devices 17 and 19 by performing the one-time broadcast FAX from the talker FAX device 15. be able to.

[0017]

As described above, according to the present invention, when performing a broadcast FAX between FAX machines in a closed coaxial line network, the FAX machine for talkers has a one-to-one communication protocol with a dedicated machine. FAX communication by a plurality of listeners can be simultaneously started by a start signal sent from a dedicated device, and a message from the FAX device for talker can be received by a one-to-N communication protocol by the dedicated device. it can.

After that, since the data communication equipment terminal closes the communication path, the response signal from the listener FAX device does not reach the talker FAX device, and the talker FAX device receives only the response signal from the dedicated device. Can receive.

Therefore, in the broadcast FAX, the FAX device for the listener can make simultaneous simultaneous incoming calls. As a result, the FAX machine for talker is 1: 1 with the dedicated machine.
FAX communication for talkers at the same time by simply performing FAX communication
Since the message from the device reaches the FAX device for a plurality of listeners, the communication time can be made similar to the time required for normal one-to-one FAX communication.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a closed coaxial line network based on a broadcast FAX receiving method according to an embodiment of the present invention.

[Explanation of symbols]

 14 Dedicated device 15 FAX device for talkers 17, 19 FAX device for listeners

Claims (1)

[Claims] 1. A fax (hereinafter, referred to as F) provided corresponding to each of the plurality of data communication device terminals through a plurality of data communication device terminals connected via a communication path.
In a closed coaxial line network for performing FAX communication between devices (described as AX), when performing a broadcast FAX as the FAX communication, it is interposed between the FAX device and a corresponding data communication device terminal. With the dedicated device, the one-to-one correspondence with the fax machine for talker corresponding to the dedicated device
Of the data communication device terminal based on the communication protocol of 1: N with the data communication device terminals of the N data communication device terminals. A closed area in which the telegram FAX device corresponding to each of the terminals simultaneously receives the electronic message from the talker FAX device, and after the simultaneous reception, each data communication device terminal closes the communication path to itself. Simultaneous simultaneous call reception method of broadcast FAX in the coaxial line network.