JP2607567B2 - Facsimile information transmission method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an information transmission system in a GB facsimile, and more particularly to an information transmission system suitable for exchanging control information other than image information between G3 facsimile machines.

[Conventional technology]

In the conventional system, as described in Japanese Patent Application Laid-Open No. 58-223954, the character code representing the transmission source information is transmitted by extending Phase B (pre-message procedure) independently of the image information.

G4 facsimile is a device that can exchange image information and control information at high speed, but this function is realized by separating and transmitting control information and image information by the function of the session layer not available in G3 facsimile. I have. JP
59-112765 describes a decompression circuit that can collectively transmit control information and image information and decompress it separately. In this case, a flag that can uniquely identify the boundary between control information and compressed image information is provided. That was what happened.

[Problems to be solved by the invention]

The method of transmitting control information in phase B has a problem that a long transmission time is required due to a low transmission speed.

When trying to realize a method of transmitting control information separated from image information by the function of the session layer like the G4 facsimile, the procedure is significantly different from that of the G3 facsimile, so a new procedure program must be developed. There was.

The method of providing a uniquely identifiable flag at the boundary between the control information and the compressed image information and transmitting the data collectively imposes restrictions on the data of the control information and the compressed image information so that the flag can be uniquely identified, There is a problem with extensibility.

An object of the present invention is to provide an information transmission method in a facsimile that can transmit control information at a high speed in a procedure corresponding to the transmission procedure of a G3 facsimile and can realize flexible expandability.

[Means for solving the problem]

The above object, an input unit for inputting image information, an information processing unit for converting the image information and control information indicating a terminal station to which the image information is transmitted to transfer data for transmitting to a relay station, A facsimile apparatus having a communication control unit that performs transmission of transfer data converted by the information processing unit between the relay station and the relay station based on a predetermined communication procedure, wherein the facsimile is converted by the information processing unit. The transfer data is obtained by converting the image information and the control information into transfer data including an attribute of the information, a content of the information, and a length of the content, and transferring the transfer data converted by the communication control unit to the relay station. Before transmitting to the relay station, it is possible to confirm that the relay station can receive the transfer data and to instruct to perform error retransmission.

[Action]

The composition of the data transferred from the facsimile, information attributes,
By making a series of transfer data composed of the contents and the length of the contents, the image information and the control information can be transmitted with the same configuration, and when transmitting this series of transfer data, first, a series of transfer transmission data is transmitted. Make sure you have a replaceable function. After the confirmation is completed, a message to be transmitted is a series of transfer data and a message instructing to perform error retransmission is transmitted, and a series of transfer data is transmitted, so that control information and image information can be transmitted together at high speed. .

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an embodiment of a facsimile procedure for carrying out the present invention. The calling station confirms in the phase B procedure that the called station has the ability to receive a series of transfer data and that the called station has the error retransmission capability in the phase C (message transmission). , And instruct the called station to perform error retransmission. Thereafter, a series of transfer data is transmitted by a message. The called station notifies the calling station of the error in the procedure, and in the event of an error, notifies the block in the message of the error. If there is an error, the calling station will retransmit the block. The embodiment shows a case where there is no error. Thereafter, phase D (post-message procedure) is performed and the transmission is terminated.

FIG. 2 shows an embodiment of a series of transfer data of phase C transmitted by the present invention. 1 indicates the entire phase C data, and 1-1 and 1-2 indicate first and second series of transfer data, respectively. 1-1-1 indicates the attribute of the first series of transfer data, and in the embodiment, indicates the transmission confirmation data. 1-1-2 indicates the length of the contents of the first series of transfer data. Thus, the range of the contents of the first series of transfer data and the start position of the second series of transfer data can be identified. 1-1-3 is the content of the delivery confirmation data, for example, represented by a character code so that information processing can be performed. The contents of 1-1-3 include, for example, the fax number of the other party sent by broadcast, the transmission date and time, and the fax of the other party who could not send.
It consists of a number and a reason. 1-2-1 indicates that the attribute of the second series of transfer data is image information. 1-2-2 indicates the length of the content of the second series of transfer data.
Are the contents of the second series of transfer data. Since the content of 1-2-3 can be identified as image information from the data 1-2-1 indicating the attribute, the receiver can decode this into the original pixel signal and record it. As a result, there is an effect that it is possible to easily know to which document the delivery confirmation data indicated by the first series of transfer data is.

FIG. 3 shows an example in which the present invention is applied to a facsimile network. Master station facsimile A requests the broadcast transmission to C _n from the terminal station facsimile C ₁ communication 2-1 to the relay station facsimile B. Phase C at this time
Data and FAX number of C _n from the terminal station facsimile C ₁ of
It consists of image information of the original to be transmitted. In this case, the 1-1-1 attributes of the second view by broadcast transmission FAX number, 1-1-3 is a FAX number of C _n from the terminal station facsimile C _1. RS facsimile B is, C _n from the terminal station facsimile C ₁ instructed
The received image information is transmitted. Thereafter, the relay station facsimile B transmits the delivery confirmation report as shown in FIG. 2 to the master station facsimile A by communication 2-3. Since the master station facsimile A can receive the fax number of the terminal station facsimile of the non-delivery destination by a code, it can output a non-delivery destination report and notify the operator of the parent station facsimile A of the delivery result. At this time, since the image information of the undelivered document can be output at the same time, the operator of the master station facsimile A can easily know the undelivered document.

FIG. 4 shows a configuration example of a facsimile to which the present invention is applied. A reading unit 10 is, for example, a CCD (Charge Coupled Device).
The original is read by an imaging device such as ce) and pixel signals are output. A recording unit 20 receives a pixel signal and prints it on recording paper. Reference numeral 30 denotes an encoding unit which receives a pixel signal, performs information compression encoding, and outputs encoded image information. The encoding unit includes, for example, MH (Modified Hu-ffmo).
n) There is a sign. Reference numeral 40 denotes a decoding unit which receives the coded image information and converts it into an original pixel signal. Reference numeral 50 denotes a font development unit that inputs a character code and develops the code into a pixel signal. Reference numeral 60 denotes an operation unit which includes an input device such as a numeric keypad button and a display device such as a liquid crystal panel, and outputs operation information such as a facsimile operation mode. Reference numeral 70 denotes an information processing unit, which is composed of a micro computer and outputs a series of transfer data by inputting image information, operation information, a communication result, etc. Decompose and output. Reference numeral 80 denotes a communication control unit which includes a microcomputer, a modem, and the like, and executes the communication procedure shown in FIG. 1, a series of transmission / reception of transfer data, and error retransmission control.

 Next, the operation will be described.

First, the operation of the master station A when executing the communication 2-1 in FIG. 3 will be described.

The master station A sends a relay broadcast mode command and a relay station B from the operation unit 60.
And when the terminal station C ₁ to input operation information comprising C _n FAX number, enter the image information by starting the reading section 10, from the end station facsimile C ₁ of a set consisting of FAX number and the image information of C _n Creates the transfer data, and the communication control unit 8 with the fax number of the relay station B.
Output to 0. The communication control unit 80 receives the received fax of the relay station B.
A line is connected to the relay station B from the number, and a series of transfer data is transmitted to the relay station B by executing the communication procedure of FIG.

Next, the operation of the relay station B when executing the communication 2-2-1 to 2-2-n of FIG. 2 will be described.

The communication control unit 80 outputs a series of transfer data received from the master station A to the information processing unit 70 while performing error retransmission and the like. The information processing unit 70 decodes the C _n FAX number from the terminal station C ₁ should relay broadcast of a series of transfer data, and outputs sequentially the FAX number and the image information of the end station to the communication control unit 80. The communication control unit 80 connects the line to the terminal designated by the FAX number input from the information processing unit 70 and transmits the image information, thereby sequentially executing the communication 2-2-1 to 2-2-n.

Next, the relay station B when performing the communication 2-3 of FIG.
Will be described.

The information processing unit 70 creates a series of transfer data from the result of the communication 2-2-1 to 2-2-n, the delivery confirmation information including the FAX number and the date, and part or all of the transmitted image information. Communication control with the fax number of the destination master station A
Output to 0. The communication control unit 80 connects the line to the master station A,
A series of transfer data including part or all of the delivery confirmation information and the image information is transmitted to the master station A.

Next, the operation of the master station A executing the communication 2-3 of FIG. 3 will be described.

The information processing unit 70 processes the transmission confirmation information from the series of transfer data input from the communication control unit 80,
The fax number is output to the font developing section 50 and printed on the recording section 20, and then the image information is output to the decoding section 40 and printed on the recording section 20 to output a delivery confirmation report.

According to the present embodiment, the received information can be clearly separated into image information and other information, so that the decoding unit 40
It can be the same as FAX, and has the effect that a commercially available FAX compression / decompression LSI can be used as it is.

〔The invention's effect〕

According to the present invention, control information can be transmitted in the same manner as image information, and control information and image information can be transmitted together at a high speed.

[Brief description of the drawings]

FIG. 1 is a sequence diagram of a facsimile procedure, FIG. 2 is a configuration diagram of transfer data, FIG. 3 is a network diagram when the present invention is applied to relay broadcasting, and FIG. 4 is a facsimile that executes the present invention. It is a block diagram. 1 ... Transfer data, 10 ... Reading unit, 20 ... Recording unit, 30 ...
... encoding unit, 40 ... decoding unit, 50 ... font development unit,
60 ... operation unit, 70 ... information processing unit, 80 ... communication control unit,
A ...... master station, B ...... RS, C _n ...... end station from C _1.

Claims (1)

(57) [Claims] An input unit for inputting image information; an information processing unit for converting the image information and control information indicating a terminal station to which the image information is transmitted into transfer data for transmitting to a relay station; A facsimile apparatus comprising: a communication control unit that transmits transfer data converted by the information processing unit to and from the relay station based on a predetermined communication procedure; The transfer data is obtained by converting the image information and the control information into transfer data including attributes of information, contents of the information, and a length of the contents, and relaying the transfer data converted by the communication control unit. A facsimile apparatus which confirms that the relay station can receive the transfer data before transmitting to the station, and instructs to perform error retransmission.