JPS62276940A - Telex equipment - Google Patents

Abstract

PURPOSE:To reduce the communication time at communication between the same kind of equipments by bypassing secceeding confirming procedure in a communication protocol at the time of discriminating an opposite station has the same kind of equipment as that of its own station in the confirmation of the function of the opposite station by a communication equipment. CONSTITUTION:A telex equipment consists of a main body control section 25, a word processor comprising a keyboard 21, a printer 22, a CRT monitor 23 and a floppy disk device FDD 24 and a communication controller 28 arranged between a public communication line and the word processor. The controller 28 controls the communication rules for data transmission/reception decided for data communication with other telex equipment. In such a case, an extension section specified by the communication protocol is used, the kind of equipment of the other party is confirmed at the initial function confirmation, and in case of the discrimination as the same kind of telex equipment, the function confirmation in each succeeding control layer is omitted and the communication mode between the same equipments is transited immediately. Thus, the communication time to confirm the opposite function is reduced remarkably.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a so-called teletex device, which is a communication system for transmitting and receiving documents between word processors using a public communication line. Between teletex devices of the same model,
This is related to shortening the time required to confirm functions.

[Conventional technology]

Conventional Teletex equipment, such as NTT's Comword, can be used to check the functionality of other Teletex equipment (
Using the communication rules for data transmission and reception established for data communication with other devices (same model or other models), from the own station to the other station, and from the other station to the other station according to the procedures for each layer of the protocol. Functions were checked in one direction at a time, such as at my own station. Therefore, even in communication between devices of the same type, for which the functionality has already been determined, it takes a long time to actually communicate document data.

[Problem that the invention seeks to solve]

When checking the functionality in the conventional technology, the functions of the other party are checked in one direction at each layer of the protocol, from the local station to the other station, and from the other station to the local station. , the time leading up to the start of document data communication was wasted.

An object of the present invention is to provide a teletex device that can shorten the communication time when communicating between devices of the same model by improving the function confirmation means specified in the prior art and confirming the model of the other party when confirming one function. It is to be.

[Means for solving problems]

In order to achieve the above object, the present invention provides communication related to data transmission and reception, which is defined in a system on the communication device side for data communication with other teletex devices (same model or different models). By using the extensions stipulated in the regulations, the model of the other party is confirmed during the first function check, and in the case of teletex devices of the same model, the subsequent model confirmation is bypassed, and communication between the same models is performed. This shortens the time required to confirm functionality.

[Effect]

When communicating documents between teletex devices of the same model, each device inserts the model code of its own model into the first partner's function confirmation data and sends it to the other party's teletex device of the same model, and the receiving side judges the received model code. Since the device then shifts to the same-model communication mode, subsequent function checks in each control layer can be omitted, and the communication time for checking the other party's functions can be significantly shortened.

[Embodiments of the invention]

Next, an embodiment of the present invention will be described in detail.

As shown in FIG. 2, the teletex device of the present invention comprises a main body 20. Keyboard 21.
Printer 22. It is composed of a word processor consisting of a CRT monitor 23, and a communication device 26 including a control section and a temporary storage section related to communication functions.

In FIG. 2, 24 and 27 are floppy disk drives (hereinafter referred to as FDD).

FIG. 1 is its block diagram. Each of the above parts is connected to a cable 201, 202, 203, 204, respectively.
control signals and information signals are sent and received through the

A main body control section 25 is installed inside the main body 2o.

The main body control section 25 includes the following:

Hereinafter, it will be referred to as the CPU. Host CPU 251 and a non-volatile boot ROM that contains a program to be executed when the power is turned on.
252, a RAM program memory 253 that stores programs and information for executing functions as a word processor, and a CRT display device 254 that generates screen display patterns according to instructions from the CPU 251 and sends video signals to the CRT monitor 23. A floppy disk controller (FDC) 255 controls the FDD 24 in accordance with instructions from the CPU 251, and sends signals to control the printer 22 and print signals to the printer 22 in accordance with instructions from the CPU 251, and sends status signals of the printer 22 to the printer 22.
The printer controller 256 receives and sends data to the CPU 251, and the keyboard 21 according to instructions from the CPU 251.
In addition to controlling the input signal from the keyboard 21,
Key human controller 257 and 1 sent to PU251
An interface conversion board 258 for transmitting and receiving data between the communication device 26 and the main body control section 25, and the CP
υ251. Boot ROM252. Program memory 25
3. CRT display device 254, FDC255, IJ
', 7 controller 256. It is composed of a key manual controller 257 and an internal wiring path connecting an interface conversion board 258. Furthermore, all control circuits and FDD24. CRT monitor 23°keyboard 21
Also accommodated is a power supply circuit 260 that supplies DC power to.

On the other hand, in the communication device 26, a communication control section 28 in the block diagram of FIG. 1 is installed.

That is, it controls a communication CPU 301, a boot ROM 302 that has a program executed when the power is turned on, a communication RAM program memory 306 that stores programs and information for executing communication functions through a telephone line, and a communication program memory. A memory control unit 305 that performs C
A communication controller 303 converts data and controls the line for communicating through the telephone line 205 according to commands from the PU 301, and converts digital signals from the communication controller 303 into analog signals and monitors dialing and status of the ilt talker A205. A floppy disk controller 307 that controls the FDD 27 according to commands from the NCU modem 304 and the communication CPU 301, and the communication CPU
U301, boot ROM302, communication controller 303゜memory control unit 3o5. It consists of an internal wiring path e connecting the floppy disk controller 307. Furthermore, a power supply circuit 360 that supplies DC power to all control circuits and the FDD 27 is also accommodated.

The main body control unit 25 and the communication control unit 28 are connected by a wiring path 204.The communication program memory 306 can be accessed from either the host CPU 251 or the communication CPt 1301 through the memory control unit 305, and both can communicate. Control is exchanged through a designated area of program memory 306.

Since the main body control section 25 and the communication control section 28 are operated by separate power supplies, individual functions can be executed even if one of them is not powered on.

Here, the FDDs 24 and 27 drive floppy disks to record and read information. Two FDDs 24 and one FDD 27 are provided on the front surfaces of the main body 20 and Tsushin [26].

Note that a word processor program is recorded on one of the floppy disks housed in the FDD 24, and a document created with the word processor is recorded on the other. Further, a communication control program is recorded on a floppy disk housed in the FDD 27, and furthermore, transmitted/received documents and communication results are temporarily recorded.

Next, the overall operation of the teletex device will be explained.

When the power supply 260 is turned on, the word processor transfers the word processor program having the flow shown in FIG. 3 stored on the floppy disk in the FDD 24 to the program memory 253 according to the program in the boot ROM 252. Start the word processor operation according to the program.

On the other hand, the communication device 26 similarly follows the program in the boot ROM 302 and transfers the communication control program having the flow shown in FIG. 4 stored on the floppy disk in the FDD 27 to the program memory 306, and in accordance with.

Perform communication functions.

In FIG. 3, when input processing is selected by the work selection input, the input processing program is executed.

The document being inputted is processed by controlling the CRT display circuit 254 to create a screen pattern according to the input processing program in the program memory 253, converting it into a video signal, and displaying the CRT display circuit 254 in accordance with the input processing program in the program memory 253.
The data is applied to the RT monitor 23 to form a display screen on the screen of the CRT monitor. Processing instructions associated with inputting data to the document are issued in accordance with data and function instructions input from the keyboard 21. In input processing.

Input and editing are repeated until an instruction to end data input is given, and the results are displayed on the CRT monitor 23.

When an instruction to end data input is input from the keyboard 21, the CPL 1251 detects this, executes end processing, and prepares for the next processing as shown in the flowchart of FIG.

In the editing process shown in FIG. 3, one screen is rewritten in accordance with function keys input from the keyboard 21. Even for other processes, CRT
displayed on the monitor 23.

In the printing process shown in FIG. 3, a specified document recorded on the floppy disk in the FDD 24 is converted into image data according to the function keys input from the keyboard 21, and a signal is sent to the printer 22 via the printer controller 256. is given, and the document is printed on paper set in the printer 22.

In the transfer process shown in FIG. 3, the power is turned on to one communication device 26, and if there is a response, the specified document recorded on the floppy disk in the FDD 24 is transferred according to the function key input from the keyboard 21. is set in a specified area of the communication program memory 306 via the interface conversion board 258 and the memory control unit 305, and delivered to the communication CPU 301 of one communication device. The communication CPIJ 301 records the received data on the floppy disk in the FDD 27 through the floppy disk controller 307 for temporary storage. If so, when specified from the keyboard 21, the communication CPU 301 sets the specified document in the specified area of the communication program memory, and the host CPU 251 in the main body control unit sets the specified document in the specified area of the communication program memory. Receive.

In FIG. 3, the auxiliary function is a general term for a function that aggregates functions such as copying a document on a floppy disk to another floppy disk.

Next, the operation of the communication device will be explained with reference to FIG. At the beginning of the program, it is determined whether there is a reception request via telephone or W2O5, and if there is, the reception process is performed. In the reception process, the NCU modem 304° communication controller 30
3. FD through floppy disk controller 307
The received document is recorded on the floppy disk in the D27. If there is no reception request, determine whether there is a document to be sent.

If so, process the transmission. In the transmission process, FDD27
The document recorded on the floppy disk in the communication controller 303. NCU modem 304° fli talk 4i120
Send through 5.

If there is no document to be sent, it is determined whether the main body is powered on, and if it is not powered on, the process returns to determining whether there is a reception request. If the main body is energized, it is determined whether there is a transfer instruction from the first main body, and if there is no instruction, the process returns to determining whether there is a reception request. If there is an instruction, the data transfer process with the main unit will begin.1 In the data transfer process with the main unit, according to the instructions from the main unit, the transmitted document is received and recorded on the floppy disk in the FDD 27, and the received document recorded on the floppy disk is It transfers documents to the main unit, status information indicating the status of the communication device, and communication results recorded on a floppy disk.

As shown in Figure 5, the Japanese Teletex communication procedure on public communication networks such as telephone lines is divided into several control layers from the top, including document, session, transport, network, data link, HDTM, and telephone network. The communication procedures are determined for each control layer. The outline of the communication procedure in each control layer is shown in Figure 6. First, the functions of the other party are confirmed in the corresponding control layer, and both the sending and receiving sides check the functions indicated by the other party. If communication is not possible, notify the other party of the impossibility and terminate communication. 6. If communication is possible, perform data communication according to the data communication procedure from the upper document control layer, and then issue a communication termination command from the upper control layer. The communication termination procedure is executed and the communication is terminated. In this way, the partner function confirmation process is performed in order from the lower telephone network control layer to the upper document control layer, and when all are in a communicable state, data communication is started from the upper document control layer. The data communication termination process is performed sequentially from the upper document control layer to the lower control layer.

Next, details of the other party's function confirmation bypass processing, which is characteristic of the present invention in communication between devices of the same type, will be explained with reference to FIGS. 7 and 8.

The other party's function confirmation bypass processing is performed from the sending device to the other party's
When the function confirmation process of the other party is performed in the telephone network control layer for the first time after dialing for &, the local station 4! is added as an option to the local station function data that communicate with each other. & Add a species code and communicate. On the receiving side of the function data, after confirming the function of the other party, if communication is possible, it is determined whether or not this local station model code is present, and if there is no code, the flag is set to other model mode.

If the local station model code is present, code discrimination is performed, and if the model is the same, the flag is set to same model mode, and if it is a different model, a flag is set to other model mode. This completes the line connection, partner function confirmation, and partner model confirmation processing in the telephone network control layer, and the process moves on to the partner function confirmation processing in the primary lower control layer.

Each control layer other than the telephone network control layer checks the same model/other model discrimination flag set by the telephone network control layer before checking the other party's functions, and the flag is set to same model mode. If so, it is assumed that the functions of the partner device are already known, and the partner function confirmation process is bypassed. If the flag is set to other model mode, check the functionality of the other device according to the communication procedure.

As described above, in communication between devices of the same type whose functions are already known, the communication time for confirming the functions of the other party can be minimized, making it possible to shorten the data communication time.

Furthermore, if one flag is used during communication termination processing,
In the case of the same model communication mode, a protocol can be adopted in which the communication in the highest control layer is terminated and the following control layers are terminated, and the time for communication termination processing can be shortened.

〔Effect of the invention〕

According to the present invention, while complying with the communication regulations regarding data transmission and reception stipulated for data communication with teletex devices of the same model or other models, the same model with known functions can be used. In inter-communication, the time required to confirm functions is reduced, making it possible to shorten communication time.

[Brief explanation of drawings]

FIG. 1 is an overall block diagram of a teletex device according to the present invention, FIG. 2 is an external view of the entire teletex device, FIG. 3 is a schematic operational flowchart of a word processor, and FIG. 4 is a schematic operational flowchart of a communication device. Fig. 5 is a diagram showing an outline of the communication control layer in the Japanese Teletex communication procedure, Fig. 6 is a diagram showing an outline of processing in each control layer, and Fig. 7 is a diagram showing the bypass processing of the present invention in the telephone network control layer. A diagram showing the method. FIG. 8 is a diagram showing the bypass processing method of the present invention in areas other than the telephone network control layer. 20... Main body, 21... Keyboard, 22... Printer.

Claims (1)

[Claims] 1. For data communication between a word processor for creating, editing, printing, and registering documents and another teletex device disposed between the word processor and a public communication line such as a telephone line. In a teletex device comprising a communication device that controls predetermined communication rules for data transmission and reception, means for the communication device to determine whether a partner station is of the same model as its own station at the time of starting communication in a partner function confirmation procedure. and, in the case of the same model, means for immediately performing data communication by bypassing the subsequent confirmation procedure in the communication protocol. 2. In the teletex device according to claim 1, the receiving side teletex device includes means for transmitting its own model confirmation code at the beginning of the partner function confirmation procedure, as means for determining the model of each other. A teletex device featuring: