JPS60167570A - Information transmitting system - Google Patents

Abstract

PURPOSE:To decrease a transmission time of information and to prevent the leakage of information by providing an information file of a prescribed format similar to a file of the transmitter side to be transmitted at the receiver side and producing the data which indicates both the position and contents of a change such as deletion, etc. at the transmitter side based on said file. CONSTITUTION:A paper 1 for transmission is used for transmission of a document of a format having a high transmitting frequency. The paper 1 includes a file information existing part 2 to contain the data on the file number and the place of the information to be transmitted. In case a transmission control part 9 decides that just a part of information should be transmitted, only the information indicating a prescribed file number is first sent back to a reception office 5 from the part 9 via a selection part 8 and a transmission part 7. The office 5 sents the sent-back file number to a reception control part 14 via a reception part 10. The part 14 decodes the file number.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an information transmission system, for example, a facsimile communication system that can be applied to a facsimile machine equipped with an image information synthesis function or a document editing function.

[Prior art]

In the conventional facsimile communication system, even if a document is in a predetermined format that is frequently transmitted, if even some of the written contents are different, all information including the same format is sent. Therefore, the transmission time is long, and it is uneconomical and inefficient. Furthermore, since all information is transmitted, there is a problem that information may be leaked due to errors in the transmission destination, interference, or the like.

[Purpose of the invention]

An object of the present invention is to provide an information transmission method that can shorten transmission time and prevent information leakage when transmitting documents in a predetermined format that are frequently transmitted.

[Structure of the invention]

In the information transmission system according to the present invention, the receiving side is provided with an information file in a predetermined format similar to the file to be transmitted by the transmitting side. On the sending side, based on this file,
Data is created that instructs the location and content of changes such as deletion. The sending side sends this data along with the base file number, and the receiving side reads out the information file that matches the sent file number and changes it to the above sent data to obtain the desired information.

〔Effect of the invention〕

In the information transmission system of the present invention, only the information that needs to be changed is sent, and the information file on the receiving side is used for information that does not need to be changed, so that the transmission time is shortened.

Furthermore, since the data to be transmitted is only information representing the information file number, change position, and change content, this information alone is generally indecipherable, and leakage of information is prevented.

〔Example〕

FIG. 1 is a block diagram for explaining an information transmission system according to the present invention, and FIG. 2 shows a transmission sheet 1 used in this information transmission system.

When sending documents in a format that is frequently transmitted, the transmission form 1 is used. The transmission form 1 is provided with a file information existing section 2, which includes data representing the file number and the location of the information to be transmitted. The location of this information to be transmitted may be indicated by the number of lines in the sub-scanning direction or the number of dots in the main scanning direction, or may be indicated by the number of lines or several dots/by rows and columns as a unit. good. Furthermore, it may be a block number whose number of lines and dots are known in advance by the transmission/reception control section. in any case,
This file information exists in a form that can be read by the transmission/reception control unit, such as barcodes and characters.

The information to be actually transmitted is entered in the transmission information existence section 3.

In Figure Ω, the transmitting station 4 is on the left, and the receiving station 5 is on the right. The transmitting station 4 includes a reading section 6 that reads information contained in the transmission form 1, etc., and a transmitting section 7 that sends the information to the receiving station 5.
is provided. Further, a selection section 8 is provided between the reading section 6 and the transmission section 7 for selecting whether to send all the information or only a part of the information. The reading section 6, the transmitting section 7, and the selecting section 8 are all controlled by a transmission control section 9.

On the other hand, the receiving station includes a receiving unit 10 that receives information transmitted from the transmitting station 4, a storage unit 11 that stores information files, and an image synthesis unit that combines the information from the receiving unit 10 and the information file read from the storage unit 11. A section 12 and a printer 13 for recording information synthesized in the image synthesizing section 12 are provided, and the receiving section 10, storage section 11, and printer 12 are controlled by a receiving control section 14.

Next, the operation of the facsimile machine shown in figures g and z will be explained. First, in the receiving station 4, the reading section 6 reads the information contained in the transmission form. The read information is sent to the transmission control unit 9, which determines whether all the information should be sent or only some of the information included in the transmission form 1 should be sent. When all information is to be sent, the selection section is switched by a signal from the transmission control section 9, and the information from the reading section is directly sent to the transmission section. On the other hand, if the transmission control unit 9 determines that only part of the information should be sent, the transmission control unit 9 first sends only information indicating a predetermined file number to the receiving station via the selection unit 8 and the transmission unit T. sent to. Thereafter, the image information designated for the information existing portion is sent from the reading unit 6, and white information is transmitted for the other portions.

At the receiving station 5, the transmitted file number is sent to the reception control section 14 via the receiving section 10, where the file number is decoded. The reception control unit 14 causes the storage unit 11 to output a predetermined information file based on the decoded file number. The information of this information file is combined with the transmission information transmitted following the file number information and the image synthesis unit 12.
After being synthesized in , the images are recorded in printer 13 .

As mentioned above, in this information transmission method, for documents in frequently transmitted formats, by indicating the file number and transmission information part of the format as shown in Transmission Form 1, only the minimum amount of information that needs to be changed is transmitted. is transmitted.

In the above embodiment, an example was shown in which the information transmission system of the present invention was applied to a facsimile machine, but it can of course be applied to other drawing and document transmission systems, such as teletex. Furthermore, the file information existence part 2 shown on the transmission form 1 in FIG. , there is no need to specifically describe that data.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a transmission sheet used in the information transmission method of the present invention, and FIG. 1 is a block diagram for explaining the information transmission method of the present invention. DESCRIPTION OF SYMBOLS 1... Transmission form, 2... File information existing part, 3... Transmission information existing part, 4... Transmitting station, 5... Receiving station, 6... Reading unit, 7... - Transmission section, 8... Selection section, 9... Transmission control section, 10... Receiving section, 11... Storage section, 12... Image synthesis section, 13... Printer, 14. ...Reception control section. Figure 1 Figure 2 Figure 5

Claims (1)

[Claims] The receiving station is provided with a known information file, the transmitting station transmits only information including the file number, change position, and change content, and the receiving station combines this information with the information in the information file. Information transmission method.