JPS62293885A - Transmitting and receiving method for facsimile transmitting-receiving equipment - Google Patents

Abstract

PURPOSE:To improve a line using efficiency and the effective using efficiency of a device by saving the overlapping part of the procedure of the first half for transmitting data when there is transmission data to a calling side in a called Fax and transmitting the data for recognizing a condition that it is possible or impossible to return. CONSTITUTION:During the execution of a communication protocol, simulteneously, when it is detected that a transmission source is Taro from a TSI receiving by the Fax (Hanako), a procedure for retrieving whether there is picture data making the Taro a distribution is prepared in a self-memory file 19 and driven by making the receiving decoding of the TSI a key. When an EOP informing the completion of the transmission of the picture data from the Taro is recognized, the two procedures selected by the result of the retrieval are prepared and either thereof is executed by the recognition of the EOP. Thus, a decision transferring signal for carrying out a return communication and a procedure for supporting a communication processing at the time of using this signal are prepared between the Faxes, thereby, the overlapping part at the time of dialling and returning to the same remote destination in a parameter during the communication procedure thereafter can be saved.

Description

[Detailed Description of the Invention] 3. Detailed Description and Summary of the Invention> Automatic communication seasonal information and a procedure signal for activating the procedure in a facsimile machine waiting for transmission data storage means and a procedure signal for activating the procedure by using a gold film. I: To simplify the 1g procedure and shorten the line occupation time? what is intended.

When the other device sends an injury request to the device, and after completing the reception procedure and data reception is completed and the ``:p end q'' signal is sent, it should immediately return the message confirmation IK signal and release the line. A11vc checks the destination of the data in the transmission data storage means to see if there is data to be sent to the other device that is currently connected.
If there is no data to send, follow the normal procedure and send back a confirmation signal. i- is released, but if there is data to be sent, a data return request is returned and the termination procedure is taken after the return transmission is executed. This increases fraction A-utilization as the first half of the connection procedure is omitted.

<Industrial Field of Application> The present invention relates to a communication system using a facsimile transmitting/receiving device (hereinafter referred to as Fax), and particularly relates to a communication system that uses a facsimile transmitting/receiving device (hereinafter referred to as Fax), and in particular, a communication system that connects communication via a line, starts data communication, and then releases the line after completing the communication. and regarding protocol improvements.

<Prior art and problems> In the fax communication system, the communication line is a single line, so in order to establish a communication connection, a request signal is sent through a single fax, and when a response is returned from the other party's fax, the next signal is sent. A one-way callback format is used, in which the sender sends 4M and waits for a response from the other party's F'ax. For this reason, one fax machine and another fax machine are connected with the line fully open, and the signals and connection procedure to be exchanged as a procedure for monopolizing the line and entering into a communication state are also the procedures for confirming the end of communication and releasing the line. The signals exchanged and termination procedures are also standardized as communication signals and communication protocols.For example, communication signals predefined in the communication standard 03 of CCITT are exchanged according to the communication protocol. It is executed by

Note that there are options among the communication signals and protocols that can be used within these standards, and certain specific operations are possible within the scope of the standards, and line transformation using P'ax uses the communication standards as an interface. The internal functions of the Fax itself that are operated but are not directly related to the interface (local functions are free; it has an internal memory that stores superstition data and sends it all at once, or it can receive received data in memory. You are free to save the data and output it later, read the document in parallel while receiving it in memory, or output the accumulated data locally and use it later.Faxes with this function are well known. It is true that by providing a Fax Di memory equipped with such memory, the usage range and usage efficiency of the fax machine as well as the usage efficiency of the line can be improved to a certain extent. If you want to further increase usage efficiency, you cannot rely on this alone.

The inventors of the present invention, i'ta, and others reviewed the father's protocol in search of elements to improve line utilization efficiency. Confirmation, confirmation of exchange of communication conditions, data transmission and reception confirmation from transmission end notification, receipt confirmation from release notification, Of the line occupation time in VC Toru Ichichi store, only the period from data transmission 1b to transmission end notification It turns out that the expected data is being sent, and before and after that, there is a line connection, an exchange of condition information with Akatsuki, and a process for line release.
If it is possible to transmit data in a single fold while maintaining the folded state, at least the data can be connected to the line for the boar.
Although I found it uneasy to exchange p and condition information,
Conventionally, each time a one-way transmission was made, the process of dialing, finding the other party, exchanging conditions, and connecting was repeated, and if there was data to be returned, this process wasted the line. In addition, in cases of heavy traffic, there was also the problem that even if you dialed back, the other party might be busy and it would take more time to connect.

In view of the above, the purpose of the present invention is to focus on improving efficiency when there is return transmission data, and to solve the problem by improving line usage efficiency by changing the communication procedure in that case. The conditions for solving this problem are: (1) The system must consist of a line and multiple fax machines that can be connected via the line.

@ Fax has a storage means (buffer memory) for transmission data, and it is specified that the destination (7 Ekinuti number) and transmission contents (data) can be stored and retrieved. Called terminal identification signal as an optional communication signal in addition to the communication operation function in the standard mode using the standard communication No. 48, which has the function of implementing the Zui 5 procedure: (a person from a seaweed),
Transmitting terminal identification signal: TSI (content: ``I am the one who called you'') and a new mutually defined specific signal: A (content: ``I would like to send it to you too'') ) in a non-standard mode that allows the use of communication signals including F! To have a functional ability.

■ The fax has a newly prepared lighting procedure, and the transmission procedure end signal that is the standard signal that indicates the end of the data sent from the other party's fax is the execution procedure that is activated by receiving the EOP. TS received first
Enter the destination ('
If there is no data stored, send a message confirmation signal: MCF according to the standard procedure
) to acknowledge the release of the other party's fax line, but if there is an accumulation, the specified signal A as an expression of the desire to return the fax.
and wait for a response 2 from the other party's fax (8 possible.) If an hF response is returned, return to the middle of the communication procedure, omitting the one that was exchanged during the previous reception in the first half of the communication procedure, and repeat the communication procedure for sending. The procedure side (goods) to carry out is prepared.

■ For Fax K, a new procedure other than the normal procedure that is selected based on the subject determination procedure of the own fax and the determination result is prepared as an additional execution procedure that is activated upon reception of the specific signal A mentioned above. 1! When A is received, it is determined according to the condition determination procedure described above, and if it is impossible to receive 1G, including undecipherable or optional signal support, a line disconnection command signal: DCN (content: ``I will disconnect now'') is returned and the process ends. Executes Hand III, but if it is receivable, non-standard terminal identification number 9 indicates option signal support is not possible:
N5F (Contents: "Can be moved as an option") Procedural control to return all faxes, return to the middle of the communication procedure, and execute a reception session with the other party's fax must be prepared.

The above are the necessary and sufficient solutions and conditions, and usually,
The actual hardware consists of memory as a container for executable programs, memory as a work space, and a microprocessor as a procedure execution means.

The problem is solved by incorporating the above arrangement into the execution support function kFax.

Effects> In a system with these optional conditions and the user J1 under these conditions, if the caller's fax finishes sending data while the caller's fax is connected for communication, if the called party's If the fax has data to send to the calling party, the other party's fax has already been sent.
Since we know the 11I call number and part of the condition information, and the line is still connected to the other party, we will omit the previous 1,000 + continuation km for such data transmission. Since data can be sent only by checking the conditions to see if it can be returned, the efficiency of line usage and the effective usage of equipment are certainly improved.

〈Example〉, XIGangTing This is an explanatory diagram of implementation 1j which also serves as a principle diagram of the present invention, and also describes the communication procedure and the processing procedure of the additional parts processed by each fax. Figure 2 is a supplementary diagram to Figure 1 and shows the functions and structure of the device image.

Note that one communication in the multi-layer transmission control procedure by CCITT is completed by receiving an EOP from the fax machine shown in bold in Figure 1 and then returning an unconditional VCMCF.
Same as when you selected , will you respond with ■ to the new part of the invention? It is important to be able to choose, and to have the response process and its activation function ready after the response of ■ is selected.

In addition, the device functions of the embodiments and (Figure 2)
If you look at them as It is. Furthermore, the direction of the signal is differentiated between arrows and message supplementary sentences for male and female words.

00 to 07 in FIG. 2 indicate the functional blocks of the sending side Fax (in bold), and the identification number in bold is also the line registration number, that is, the telephone number.

Similarly, 10 to 23 indicate the functional blocks of the receiving side Fax (Hanako), and this telephone number is also set to "Hanako". Fax (Hanako) has a local function, and even when it is not called from the line as shown in Figure 1 (Fax (bold section)), it reads the original from the reading section 17 and compresses the data via the compression/decompression section 12. It is possible to store data to be transmitted and distributed to distribution destinations in the memory file 19 via the file i!l1la section 13i, and the main control section 10 controls the execution of these tasks. It is assumed that the operator instructs from the panel section 23 whether to control the execution of the data, and the operator also adds the distribution destination identification number (talk number) of the accumulated data to be sent and distributed from the panel section 23. (You can specify it directly, or you can allocate it from the speed dial list.)
For fax (Hanako), the destination management unit 14, which manages the presence or absence of data accumulated in the memory file 19 and the destination number, also reads the data from the TSI received during communication. The number detecting unit 16 that decodes and detects the phone number of the other party's fax, the matching unit 15 that performs a collation search on the data in both parts (14, 16) to determine whether or not there is an allocation, and detects all allocations. The transmission ++I11 procedure system # section 11 that supports line communication, the line control section (NCU section) 20 that executes connection control with the line, the automatic transmission section 22
We will proceed with the discussion assuming that the modem section 21 is also provided, and the functional scope of the transmission control procedure control section 110 includes functions ft/If that support A in addition to C3I and TSI as option Ig. shall be.

In addition, for Fax (bold), functions other than the procedure execution function shown in Fig. 1 are omitted, but the functional range of the transmission procedure control unit 01 that controls the connection with the line for the NCU unit 03V is Fa.
It is assumed that, like that of x (Hanako), it has a function to support A in addition to C81 and TSI.

Under the above conditions, Fax (Abe) performs dial alcohol to catch Fax (Hanako), and Fax (Hanako)
Fax when available when the line is not in use
(Hanako) transmits a series of response signals (CED) to the dial call destination to notify the terminal building 9 functional range, self-identification code, and standard level according to a predetermined communication procedure.

Send NSI, C8I, and DIS in sequence. I took the F.
The ax (bold part) side decodes this to confirm the function of the other party and the other party, and also sends an assertion of the transmission source, an assertion of the transmission format, and a training signal, that is, TSI.

Sends NSF and TCF.

On the other hand, for Fax (Hanako's side identifies and memorizes the thick part of TSI, selects an optional receiving mode from NSS,
When it is determined that the TCF has been received, the CF'R is sent back to the fat section to establish a reception system, and the fax (fat section) side confirms the return of the CFH and sends the PIX (image data) (as many pages as possible). After sending the last page of the image data, send an EOP indicating that there is no more data, and on the fax (Hanako) side, if the data is accepted as a corresponding process by receiving the EOP. Return MCFft to report reception and fax (fat part)
When the MCF is returned, the side confirms that Hanako has received the message, completes the termination process, and releases the line. The above is the conventional procedure for transmitting one-line image data.

What is new about this embodiment is that when the Fax (Hanako) detects that the sender is a fat section from the received TSI in parallel during the execution of all the above exchange fg protocols, the self-memory file 1
9, there is a means to search whether there is data that is distributed to the thick part, and it is activated using the reception decoding of the TSI as the key, and the image data from the Fax (bold part) is prepared. When the FJOP that signals the end of H is approved, there are two procedures that are selected depending on the results of the above search, and one of them is executed when the EOP is confirmed.
If it corresponds to the figure, if there is no reservation, ■ will be selected and MC
This is a termination procedure that has the same result as after t1, which returns F.
If there is a reservation, Ai will be returned.The newly added ■ side is affordable.

There is a response determination procedure that is activated using the reception of A from Hanako after sending an EOP to Fax (Fat), and if possible, select the response procedure corresponding to signal A and execute it. In order to enter, the receiver 4g first sends the NSF as a response signal indicating that the own fax is compatible with opt-in and the standard identification signal DIS of the own fax, and waits for a response from the other fax (Hanako). In the middle of the response, the system enters into a compulsion system. Also, on the receiving Fax (Hanako) side, NS is sent to the response signal after sending A.
The presence or absence of NSF is verified by the procedure of determining whether or not F is returned, and if NSF is included, the transmission procedure sends NSF and TCFt as a response, Fax (bold section)
When CF'R returns from the side, it sends the image data PIX for the thick part in its own memory file 19, and EOPs it at the end.
'! When the MCF returns, it enters a termination procedure, thereby completing one communication cycle of the return transmission procedure and releasing the line.

The story is a little more detailed, but if the Fax (Abe) is a CCITT machine and an Optional Sonon machine, it is P'aχ that does not support /l (for example, if A is defined only between in-house faxes) If A is not supported, etc.), A is received, but it is not possible to decipher what should be supported in terms of content, and there is no support head, so option M is used for A.
Response indicating unsupported: TCF without NSF (
(Supports up to CCITT standard) Please fax it back to me.
Since Hanako's side did not include NSF, she gave up on executing the return procedure and decided to complete the procedure + [j 7. (Once executed, Ichichi's Mk will end.

In addition, regarding hardware support, it is the NCU section (03 on the thick side and 20 on the Hanako side) that directly sends and receives communication procedure signals and data via the line, and the transmission control procedure is the one that controls procedure execution. Control units (01 and 11) The main control unit (OO and 10) instructs the selection of procedures, and the modem unit (01 and 11) performs conversion and inverse conversion of data formats during transmission and reception.
04 and 21), and also compresses and converts the original reading input from the reading section (06 and 17) through the compression/decompression section (02 and 12), and outputs the K output from the recording section (05 and 18.) The configuration and functions such as restoring data are controlled by the main control unit (same as
0 and 10), and the operator gives operation instructions to the main control section from the panel i (07 and 23) if necessary.

Also, the memory file 19 via the file sender @ section 13
1.11.2.1.1.1.1.1.1.1.1.1.1.1.1, 2.1.1, 2.1, 2.1, 2.1, 2.1, 2.1, 2.1, 2.1, 2.1, 2.1.1, 2.1, 2.3.
The control of the ear part 14, the control of the number detection part 16 that decodes the telephone number of the other party's fax during re-examination, and the iII'llll III of the verification part 15 that performs verification are all controlled by the main control part 10. shall be carried out.

Effect> As explained above, according to the present invention, the communication process when using the communication signal for return communication and the communication process when using the first number 1: True communication between Faxes. Compared to the case where image data is transmitted using independent two-way communication, by preparing the dialing and the parts of the parameters in the subsequent communication procedure that are duplicated when returning to the same destination (
(marked with a white circle in Figure 1) can be omitted, and in fact, in a certain
Because it is inside the network, there is no need to worry about it being busy, which brings about the unique effect of reliably improving line utilization efficiency and transmission/reception performance.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of an embodiment that also serves as a principle diagram of the present invention, and is a flowchart of communication procedures and execution processing. Figure 2 is a supplementary diagram of Figure 1. In the composition of the device image, 00 and lO are Main control unit, 01 and 11 are transmission control procedure control units, 03 and 20 are NC
U part, 06 and 17 are reading parts, 05 and 18 are recording parts, 07
and 23 indicate a panel section for operation, 15 a collation section, and 19 a memory file.

Claims (1)

[Claims] A called terminal identification signal (CSI) and a transmitting terminal identification signal (TSI), which have a means for realizing a line connection function and a transmission/reception function, and are permitted to be used as an optional signal in a transmission control procedure. ), and has means for storing image data of the scanned original document, the telephone number of the other party's device included in the TSI sent from the other party's device at the time of reception. is detected, and it is checked whether the image data of the destination that matches the telephone number is stored in the storage means of the device concerned, and if there is image data stored, the sending procedure from the destination device is performed. When the end signal (EOP) is received, the message confirmation signal (MCF) that is sent back to the other device as part of the reception completion procedure during normal communication is not sent back, but instead, the message confirmation signal (MCF) is not sent back to the other device, but instead the message confirmation signal (MCF) is not sent back to the other device. By sending back a pre-arranged specific procedure signal (A) that instructs the device to continue the connection and having the other device take action, it is possible to return the stored image data to the other device. A transmission/reception method of a facsimile transmission/reception device characterized by: