JPS5885665A - Facsimile terminal equipment - Google Patents

Abstract

PURPOSE:To exclusively use a read part and a recording part by each operator, by connecting plural read parts and plural recording parts to one communication control part. CONSTITUTION:Plural terminal control parts 2, that is to say, plural read parts 4 and plural recording parts 5 are connected to a communication control part 3 so that each operator can use exclusively the read parts 4 and the recording parts 5. In case when communication is executed to a terminal of the other party through a communication line 17 from the terminal control part 2 of #a, a control signal showing that its communication is executed to the circuit 17 from the read part 4 of #a is sent to a switching circuit 30. This circuit 30 connects the read part 4 of #a and a redundancy compressing circuit 12, and after they have been connected, communication is executed in the same way as communication between conventional facsimile terminal equipments. In this way, by use of a single control part 3, it is possible to execute communication between an optional read part 4 among #a-#e and the recording part 5, and also communication with the other terminal through an optional part among #a-#e and the circuit 17.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a facsimile terminal device that allows a plurality of users to exclusively use the reading section and recording section of the facsimile terminal.

The configuration and problems of conventional facsimile terminal devices are as follows.

FIG. 1 shows an example of the configuration of a conventional facsimile terminal device, in which 1 is a facsimile terminal device, 2 is a terminal control section, 3 is a communication control section, 4 is a reading section, 5 is a recording section, and 6 is a sensor and drive unit. 7 is a document scanning mechanism; 8 is a reading device control circuit; 9 is a head and drive circuit; an expansion circuit; 14 is a transmission control circuit;
15 Fi modulation/demodulation circuit, 16 is a network control circuit, 17 is a communication line, 1st is an arrow indicating the flow of an image signal, and 19 is an arrow indicating the flow of a control signal. Note that the redundancy compression circuit 12 is
It may also be included in the reading section.

Similarly, the redundancy expansion circuit 13 may be included in the recording section 5. Further, the redundancy compression circuit 12 and the redundancy expansion circuit 13 may not be used, and furthermore, the modulation/demodulation circuit 15 is not used when transmitting image signals in baseband.

As shown in Fig. 1, a conventional facsimile terminal device consists of a large number of circuits, ranging from 6 to 16, making it an expensive device as a whole.
One facsimile terminal device is installed in each unit, and a plurality of operators have to use it alternately.

FIG. 2 shows an example of a system configuration in which the conventional facsimile terminal shown in FIG. 1 is used exclusively by a plurality of operators.
1' is a frame indicating divisions between offices, divisions, peaks, etc.

The communication network including the communication line 17 and the exchange 20 may be a public telephone line, a public data line, or a private private exchange line.

Since it is necessary to improve the system configuration, the system has a drawback that the price increases in proportion to the number of Factor i IJ terminal devices installed.

In order to solve these drawbacks, the present invention connects a plurality of terminal control sections, that is, a plurality of reading sections and a plurality of recording sections, to one communication control section, and connects the reading section and the recording section. It is made available for exclusive use by each handler.
The drawings will be explained in detail below.

FIG. 3 shows an embodiment of the present invention, and 1 to 19 are the same as in FIG. 1. 3o is a switching circuit, 31 is a connection line, and φa to φ- are terminal control unit units.

For example, the operation when the terminal control unit 2 of Sα communicates with a partner terminal through the communication line 17 will be described. A control signal indicating that communication is to be made to the communication line 17 is sent from the reading unit 4 of Φa to the switching circuit 3.0. The switching circuit 30 has φα
The reading part number and the redundancy compression circuit 12 are connected. After connection, communication is performed in the same way as communication between conventional facsimile terminal devices.

As another example, the operation when communicating from the reading section 4 of 4c to the recording section 5 of φb will be described. ◆ A control signal indicating that the communication is from the reading unit 4 of C to the recording unit 5 of φb is sent to the switching circuit 30. The switching circuit 30 is connected to the reading section 4 of the
Recording unit 5 and f: At the same time as connecting, the transmission control circuit 14
A control signal indicating that communication within the same facsimile terminal device is interrupted is sent to the facsimile terminal. After that, the copy operation is the same as in a conventional facsimile terminal. Then, the original read by the reading unit 4 of ΦC is output to the reading unit 5 of φb.

As another example, we will describe the operation when communication is made from the other party's terminal to the recording unit 5 of φd through the entire communication line 17. The communication control unit 3 performs communication with the other party's terminal in the same manner as communication between conventional facsimile terminal devices. Then, the other party's terminal is, for example, CIG (
during the calling Fi6 classification), or during the extension field of DO8 (digital command signal), or during CCITT Recommendation S,
Insert a signal to select φd from φα to Φe into the additional session reference number of C85 (session start command) in 62, and notify the transmission control circuit 14 that the communication is from the partner terminal to ◆, d. . Transmission control circuit 14
sends a control signal indicating that the communication is to the recording unit 5 of Φd to the switching circuit 30. The cutout circuit 30 connects the recording unit 5 of ◆d and the redundancy expansion circuit 13. After the connection,
Communication is carried out in the same way as conventional communication between terminal devices for receiving facsimile. If the other party's terminal does not send a signal to select Φd from ◆a to φ-, a predetermined signal such as φα The recording section 5 and the redundancy expansion circuit 13 are connected.

Since it operates in this way, a single communication control section 3 can be used to control communication between any reading section 4 and recording section 5 among φα to φ-, and communication between any one of ◆α to φ-. It is possible to communicate with the other party's terminal through the entire communication line 17.

FIG. 4 shows one embodiment of the switching circuit 30 shown in FIG. 3, and is an example using a control/address bus. 32 is a connector, 33 is an address selector and bus driver,
34 is a switching circuit CPU. 35 shows the details of the control lines.

FIG. 5 shows an example of a signal on the control line shown at 35 in FIG. For example, the operation will be described in the case where the redundancy is greater than ◆α and the connection is made to the compression circuit 12. connection? l531
≠001O is output as the address information. If BSY on the control line indicates ``Other device in use'' (then the device is waiting for a connection. When the waiting for connection is canceled,
Issue a “bus use request” from BRQ. Then, switching time 1
The 8cPU 34 displays a 1-path usage signal to BRQA, and at the same time outputs a ``indication of use to other devices'' to BSY, thereby prohibiting other devices from using the bus.

The data bus can be used by the ``path available'' signal, and by outputting the RK ``input instruction'', the ``input data'' from the previously output address ÷0010 can be input. By outputting the instruction ", one output data ' can be output to φ0010.

Since it operates in this way, ÷α to φ− and communication times 1
Any two iJ17s can be switched and connected.

Note that the switching circuit is not limited to the above-mentioned embodiment, and can also be implemented using, for example, a communication path switch of an exchange.

FIG. 6 shows an embodiment of the present invention in which an image signal storage circuit 40 is provided in the communication control section.

For example, when communicating from the terminal control unit 2 of Φα to the other party's terminal through the entire communication line 17, the communication from reference α to t-
A case will be described in which, when the communication starts, the terminal control unit 2 of Φb is communicating with another partner terminal.

A control signal indicating that the communication is from the φG reading unit 4 to the communication line 17 is sent to the switching circuit 30.

Since the switching circuit 30 is communicating from -◆b to communication times 11!17, for example, as shown in FIG.
By switching the image signal from φb and the image signal from φb on the time axis, the image signal from φb is sent to the redundancy compression circuit 12, and the image signal from φa is sent to the storage circuit 40. After that, when the communication from ◆b to the communication line 17 is completed, the transmission control circuit 14
A signal indicating that communication is possible is sent to the switching circuit 3o. The switching circuit 30 has a storage circuit 40 and a redundancy compression circuit 12.
The communication with the other party's terminal which was scheduled to be sent from φα is performed between the memory circuit 40 and the other party's terminal.

Since it operates in this manner, the embodiment in which the memory circuit 40t of FIG. 6 is provided can improve the efficiency of communication line usage compared to the embodiment of FIG. 3.

In the embodiment shown in FIG. 6, an image signal without redundancy compression is sent to the storage circuit 40, but it is also easy to send an image signal with redundancy compression.

FIG. 8 is an example of a system configuration in a case where a plurality of operators use the facsimile terminal device of the present invention exclusively for the reading section and the recording section.
Each facsimile terminal device is equipped with a terminal control section 2, a reading section 4, or a recording section 5, depending on the number of users.
By simply adding , it is possible to create an effect as if each operator were exclusively using a conventional facsimile terminal.

Note that the connection wires 31 in FIGS. 3 and 4 do not necessarily need to be wired inside the device housing; instead, the terminal control section 2, the reading section 4, and the recording section 5 are provided in separate housings, and the connection wires 31 are routed between them. It can also be used as a connection cable.

Further, in FIG. 3, the connection line 31 is a star connection, but it can also easily be a bus connection or a loop connection.

As described above, according to the present invention, an operator can connect as many reading units and recording units as necessary to a single communication control unit. Communication between these reading sections and recording sections is as fast as the copying operation of conventional factor z') terminals, and communication between any reading section or recording section and the other terminal through the communication line at-. The communication m is performed in the conventional manner using a single communication control unit.

be able to.

Each operator can use their own reading section and recording section as if they had monopolized the conventional facsimile terminal device. In addition, it can be used as a communication system as shown in Figure 8, for example, and the communication control unit can be installed in each office, department, section, etc., making it possible to create an inexpensive system. .

-4. Brief description of the drawings Fig. 1 is a configuration diagram of a conventional facsimile terminal device, Fig. 2 is a system configuration diagram using a conventional facsimile terminal device, and Fig. 3 is a configuration diagram of an embodiment of the present invention. Figure 4 is an example diagram of the switching circuit shown in Figure 3, Figure 5 is a signal example of the control line shown in Figure 4, and Figure 6 is a diagram of a case where an image signal storage circuit is provided in the communication control section. 7 is a signal example of the control line when the image signal is switched on the time axis in FIG. 6, and FIG. 8 is an example of the system configuration when the facsimile terminal device of the present invention is used. Figures are shown respectively.

In the figure, 1 is a facsimile terminal device, 2 is a terminal control unit, 3 is a communication control unit, 4 is a reading unit, 5 is a recording unit, 12 is a redundancy compression circuit, 13 is a redundancy expansion circuit, and 14 is a transmission control circuit. , 15 is a modem circuit, 16 is a network control circuit, 17 is a communication line, 20 is a switch, 21.21' is a business office, department,
A frame indicating divisions between departments, etc., 30 is a switching circuit, 31 is a connection line,
32 is a connector, 33 is an address selector and a path driver, 34 is a switching circuit CPU, 35 is a breakdown of control lines,
40 represents an image signal storage circuit.

Patent applicant: Nippon Telegraph and Telephone Corporation Agent Patent Attorney Mori 1) Hiroshi 2nd

Claims (3)

[Claims] (1) A plurality of terminal control unit units including one or both of an image signal reading unit and an image signal recording unit, and one communication control unit, and the communication control unit is connected to the terminal control unit. A facsimile terminal device characterized in that it is configured so that two or more units can be connected simultaneously. (2) In the facsimile terminal device according to item 1, the communication control section includes a switching circuit, and the one or more image signal reading sections and the one or more image signal recording sections; A facsimile terminal device characterized in that a communication line connected to a communication control unit can be arbitrarily switched between three parties for connection. (3) In the seven-axis terminal device described in the above paragraphs 1 and 2, the communication control section is provided with an image signal storage circuit, and the image signal is transmitted from the communication line to the image signal recording section or from the image signal reading section to the communication line. A facsimile terminal device that temporarily stores an image signal when not outputting it in real time.