JPH10164335A - Multi-page original transmission method for facsimile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate time loss due to useless procedures and to shorten the time required for communication by omitting the re-execution of a pre-message procedure in the case that a reception side can not cope with requested ability. SOLUTION: A central processing unit 200 connects a line with a reception side facsimile through a modem 208 and an NCU 210, performs the procedure of a pre-message and stores the confirmed ability information of the reception side facsimile, that is DIS, in a memory part 202. When the transmission of original images equivalent to one page is ended and the change of control setting by the change of the resolution and sheet size, etc., of an original to be transmitted is requested, the ability information of the reception side facsimile stored in the memory part 202 is referred to, and in the case that the ability of the reception side facsimile can not perform coping, the transmission of the original image of the next page is immediately started without re-executing the pre-message procedure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of transmitting a facsimile document, and more particularly, to a method of transmitting a multi-page document, that is, a multi-page document.

[0002]

2. Description of the Related Art Generally, communication between facsimile machines for document transmission is performed by a predetermined transmission procedure for performing a protocol. This transmission procedure is based on CCITT (I
nternational Telegraph and Telephone Consultative
Committee).

[0003] The transmission procedure includes phases A to E. Phase A is a procedure for connecting a line between both facsimile machines. Phase B is a pre-message procedure in which the capability of the receiving side is confirmed and control settings for both facsimile are performed.
The setting items at that time include information such as a transmission speed, a resolution, an encoding method, and a paper size. Phase C is a procedure for transmitting actual document image data. Phase D is a post-messag (post-messag) that selects operations such as multi-page, message end, confirmation, and procedure end.
e procedure). Phase E is a procedure for releasing a line between facsimile machines.

[0004] These transmission procedures proceed in the following flow. After a line is formed between the transmitting and receiving facsimile machines in the phase A, both control settings are made in the phase B, and the phase C for transmitting the document image data is performed. At the end of each page transmission of the original image data, the presence or absence of the next page is confirmed in phase D. If there is the next page, the image data transmission is performed again in phase C. Proceed to E and cut off the line between the sending and receiving facsimile machines and end.

FIG. 1 shows the procedure of a conventional transmission procedure. In phase A, the receiving facsimile receives CNG (Calling ton
e) and receive CED (Called station identification)
And a line is formed between the mutual facsimile machines.
Subsequently, in phase B, the receiving facsimile transmits the DIS (Dig
The transmitting facsimile transmits a DCS (Digital command signal).
DIS is a signal indicating the capability of the receiving facsimile, and includes capability information such as the transmission speed, resolution, encoding method, and paper size of the receiving facsimile. DCS is a signal by which the transmission-side facsimile receives the DIS and performs control setting. Further, the facsimile on the transmitting side uses TCF (Trainin
g check), and the receiving facsimile sends the CFR (Confi
rmation toreceive). The TCF is data that is transmitted on a trial basis in the control setting by the DCS, and transmits “0” data for 1.5 seconds at the same speed as the transmitting facsimile transmits image data. CFR
Is a signal indicating that the receiving facsimile has correctly received the pre-message including the TCF, and is a message indicating that actual document image data may be transmitted.

After the above procedure, actual original image data is sent in phases C and D. The sending facsimile is
At the end of each page transmission of the original image data, if there is a next page, MPS (Multi-page signal) is transmitted, and in response, the receiving facsimile transmits MCF (Message confirmation) indicating confirmation. I do. In this way, the document image data of each page is sequentially transmitted.

Here, when the original to be transmitted includes pages having different resolutions, paper sizes, and the like, the transmitting facsimile transmits an EOM (End Of Message). EOM is a signal for instructing transmission of the next page of the document image data with control settings different from those before. When the receiving facsimile transmits the MCF accordingly, the process returns to the phase B again to update the control setting of the mutual facsimile again.

When the control setting is redone in phase B, if the capability of the receiving facsimile can cope with the control setting requested by the transmitting facsimile, the parameters of the control setting of the receiving facsimile are updated by the DCS. D is executed. On the other hand, if the capability of the receiving facsimile cannot correspond to the control setting requested by the transmitting facsimile, the control settings of the receiving facsimile are not changed, and even pages with different resolutions, paper sizes, etc. Phases C and D are performed with the control settings kept, and the document image data is transmitted.

When transmission of the last page of the manuscript is completed,
The sending facsimile is the procedure end message EO
A P (End of procedure) is transmitted, and the receiving facsimile transmits the MCF. When the transmitting facsimile transmits DCN (Disconnect) in phase E, the line between the mutual facsimile is released.

[0010]

In the transmission of a multi-page document, if the document to be transmitted includes pages having different resolutions, paper sizes, and the like, and a change in control settings is required,
It usually takes about 7.5 seconds to re-perform phase B. For example, fine resolution with initial control settings
After the original image data is transmitted, when the control setting is to be changed to superfine, phase B is executed again. At this time, if the capability of the receiving facsimile cannot support the super fine, the transmission of the next page is performed in the same resolution fine as the previous page without changing the control setting even after performing the phase B. You. In this case, phase B becomes an unnecessary procedure as a result, and about 7.5 seconds of time required for performing phase B are wasted.

In other words, according to the conventional multi-page document transmission method, when a document to be transmitted includes pages having different resolutions, paper sizes, and the like, and a change in facsimile control settings is required, the received control setting is not used. Regardless of whether or not the side facsimile can cope, the procedure of phase B is always re-executed, which causes an increase in the required communication time. SUMMARY OF THE INVENTION An object of the present invention is to provide a facsimile multi-page document transmission method which eliminates time loss due to useless procedures and shortens communication time.

[0012]

In order to achieve the above object, according to the present invention, at the time of a pre-message procedure for confirming and setting up the capability of the receiving side, the capability information of the receiving side is stored at the transmitting side, When a change of control information is requested between pages during document transmission, the capability information stored on the transmitting side is checked, and if the receiving side cannot respond to the required capability, the pre-message procedure is re-executed. The feature is omitted. That is, a step of calling the receiving side to connect the line, a step of performing a pre-message procedure for confirming and setting up the capability of the receiving side, and storing the capability information of the receiving side confirmed by the pre-message procedure in the transmitting side After transmitting the original, the step of confirming the capability information stored on the transmitting side when a change in control information is requested between pages during the original transmission, and this capability confirmation,
When the receiving side determines that the required capability cannot be met, the process of continuing to send the original document without changing the currently set up control information, and when the receiving side determines that the required capability can be met, From the message procedure to the process of starting again. The capability information on the receiving side is DIS information sent from the receiving side. The change in the document includes a change in resolution or paper size.

[0013]

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

FIG. 2 is a block diagram of a normal facsimile to which the present invention is applied. Central processing unit 200
Controls the operation of the facsimile based on the program stored in the memory unit 202. The memory unit 202 stores an operation program of the central processing unit 200, a protocol control program, and various kinds of reference data, and temporarily stores data obtained by executing the program of the central processing unit 200. OPE (Operating Panel Equipment) 204
It has numeric keys and function keys and a display device, and inputs data from the keys to the central processing unit 200, and
0 displays various states of the facsimile controlled. The scanner 206 scans a document and outputs document image data to the central processing unit 200. The image data output from the scanner 206 is processed by the central processing unit 200, stored in the memory unit 202, and stored in a modem (MODE).
M: Modulator-Demodulator) 208 or printed by the printing unit 212. Modem 208
The output data and image data of the central processing unit 200 are modulated into analog signals, and the NCU (Network Control Unit)
The data is input to the NCU 210 and transmitted by the NCU 210 through the transmission path. The received signal is input from NCU 210 to modem 208 and demodulated from an analog signal. The NCU 210 forms a line between the transmission line and the modem 208 under the control of the central processing unit 200. Printing unit 2
Reference numeral 12 prints an image under the control of the central processing unit 200.

FIG. 3 is a flowchart showing the procedure of the embodiment of the present invention. The operation according to the flowchart of FIG. 3 is programmed in the memory unit 202 of FIG. 2 and performed by the central processing unit 200.

In the following, a case where the transmitting facsimile having the configuration of FIG. 2 operates according to the flow of FIG. 3 will be described. The central processing unit 200 shown in FIG.
0, phase A connecting the line to the receiving facsimile through the modem 208 and the NCU 210 as in the conventional method.
I do. Next, in step 302, a phase B of a pre-message procedure for confirming and controlling the capabilities of the receiving facsimile is performed. At step 304, the central processing unit 200
Stores the capability information of the receiving facsimile confirmed by performing the procedure of the phase B, that is, DIS, in the memory unit 202. In step 306, the original is scanned by the scanner 206, and the image data is
Phase C of transmitting to the receiving facsimile through the CU 210 is performed. When the transmission of one page of the document image is completed, in step 308, the presence or absence of the next page of the document is confirmed.

If there is a next page, the central processing unit 20
In step 310, a check is made to see if there is a request to change the control settings due to a change in the resolution or paper size of the document to be transmitted. If there is no request to change the control setting, the process proceeds to step 306 to transmit the image data of the next page.

On the other hand, when a request to change the control information is made, the process proceeds to step 312. In step 312, the central processing unit 200 determines in step 304 that the memory unit 2
02, if it is confirmed that the capability of the receiving facsimile can cope with the required control setting, the step 302 is performed in order to change the control setting as before. Return to and execute the pre-message procedure again. On the other hand, if it is confirmed that the capability of the receiving facsimile cannot cope with the requested control setting, the process proceeds to step 306 to immediately transmit the document image data of the next page without re-executing the pre-message procedure. Move on.

Phases C and D are repeated by the above steps. If it is confirmed in step 308 that the original has no next page, the flow advances to step 314 to execute phase E for releasing the line, and Is completed.

FIG. 4 shows a procedure of a transmission procedure according to the embodiment of the transmission method of the present invention.

In the conventional method, as shown in FIG. 1, as soon as a change in the control setting is requested, the EOM which instructs the receiving facsimile to transmit with the control setting different from the previous one is used.
While the signal was transmitted, the method of the present invention
Before transmitting the M signal, the central processing unit refers to the capability information of the receiving facsimile stored in the memory unit and performs confirmation. Therefore, if the capability of the receiving facsimile cannot cope with the required control setting, As in 4, the operation of transmitting the EOM signal and re-executing the procedure of phase B is omitted. Therefore, it is not necessary to take time to perform phase B, which is an unnecessary procedure.

Although the embodiment of the present invention has been described with reference to the case where the control information of the resolution and the paper size is changed, the present invention can be similarly applied to the case where the control information such as the transmission speed is changed. .

[0023]

As described above, according to the multi-page document transmission method of the present invention, when a change in control settings is required, the central processing unit stores the data in the memory unit before re-executing the control setting procedure. Since the confirmation is performed with reference to the stored capability information of the receiving facsimile, it is not necessary to take time to execute unnecessary procedures, and the time required for communication can be reduced.

[Brief description of the drawings]

FIG. 1 is a timing chart showing a procedure of a transmission procedure according to a conventional transmission method.

FIG. 2 is a configuration diagram of a normal facsimile.

FIG. 3 is a flowchart showing a process of a transmission-side facsimile according to the present invention.

FIG. 4 is a timing chart showing a procedure of a transmission procedure according to the transmission method of the present invention.

[Explanation of symbols]

 200 Central processing unit 202 Memory unit 204 OPE 206 Scanner 208 Modem 210 NCU

Claims (5)

[Claims] In a facsimile original transmission method for multi-page, in a pre-message procedure for confirming and setting up the receiving side capability, the receiving side capability information is stored at the transmitting side, and the original is being transmitted. When a change of control information between pages is requested, the capability information stored at the transmitting side is checked, and if the receiving side cannot respond to the required capability, re-execution of the pre-message procedure is omitted. A document transmission method characterized by the following. 2. The document transmission method according to claim 1, wherein the change in the control information is a change in resolution or paper size. 3. A method of transmitting a facsimile original in a multi-page facsimile, connecting a line by calling a receiving side, performing a pre-message procedure for checking and setting up the capability of the receiving side, Transmitting the original after storing the capability information of the receiving side confirmed by the procedure on the transmitting side, and confirming the stored capability information on the transmitting side when a change of control information between pages is requested during the original transmission. If the receiving side determines that the required capability cannot be met,
It is characterized by implementing the process of continuing to send the original document without changing the control information currently set up, and the process of re-starting from the pre-message procedure when the receiving side determines that the required capability can be met. Original transmission method. 4. The document transmission method according to claim 3, wherein the change in the control information is a change in resolution or paper size. 5. The original transmitting method according to claim 4, wherein the capability information on the receiving side is DIS information sent from the receiving side.