JPS6043964A - Transmission back-up system - Google Patents

Abstract

PURPOSE:To eliminate trouble of resending operation of a resent document at the time of resending due to abnormality of communication by providing a storing device that stores image data of an original of plural pages and a device that stores number of sent pages. CONSTITUTION:A document 1 of plural pages is let out successively one sheet by one sheet. Image data read by an image sensor 5 are binary coded by a data controlling section 6, compressed by a main controlling section 7 and sent to a picture memory 8. Then, the image data are stored by a file controlling section 11 in a memory section 10, and at the same time, sent out from the picture memory 8 to a circuit by a circuit controlling section 9. When abnormality of communication on the circuit occurs during transmission, recording of a receiving equipment is interrupted. However, reading is made uninterruptedly in the transmitting equipment, and the image data are stored in the storing section 10. After the abnormality of communication is restored, image data from the beginning of the page in which abnormality of communication occurred out of image data stored in the storing section 10 are sent out to the circuit.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a transmission method for a facsimile communication device, and more particularly to a transmission backup method that can easily perform retransmission due to a communication error during transmission.

(b) Background of the Technology Recently, facsimile communication has been put into practical use for transmitting documents, figures, etc. to distant locations using communication lines. As shown in Figure 1, in facsimile communication, transmitting and receiving devices between users are connected by a communication line, and document communication is carried out at 17'. The image data of the IJl image is transmitted as an electrical signal, and the receiving side records it on, for example, thermal paper to reproduce a document. There is also a method that uses a telephone line for the line.

On the transmitting side, documents are normally fed out one by one and read by an image sensor and transmitted.However, when transmitting a plurality of documents, it is desirable to be able to easily perform 1++ transmission even if there is a communication error.

+c) Prior art and problems Hereinafter, the conventional method will be explained with reference to the bookmark diagram in FIG.

Normally, a device capable of transmitting and receiving is used as a transmitter/receiver as described above, but in order to simplify the explanation, it will be described as a transmitter.

Figure 2 shows a block diagram of the transmitting device.
4 is a lens, 5 is an image sensor, 6 is a controller, 7 is a main controller, 8 is an image memory, and C) is a line controller.

The transmission document 1 of the reading unit 2 is sent as 1 4; 2 so that it is transported at a constant speed by R1.

A light-emitting lamp 3 is arranged so as to emit light onto a document on which characters or the like are written.

The upper part of the transmission lens 4 and the image sensor 5
is set up. The image sensor 5 is a line sensor such as a charge-coupled device (CCD), which scans a projected image and converts it into image data.

The data control section 6 has a function of converting the read image data into binary values and sending it out.

1: Control unit 7 controls each mechanical unit of the transmitter 1, compresses the image data sent from the data system (III fHI 6), sends it to the image memory 8, and transmits it to the line control unit 9. It has the function of commanding.

The image memory 8 holds the sent image data,
Line fee? 1TIIff1l It has a function without being sent to 9.

The line control unit 9 has a function of controlling transmission and reception of data over the line.

With such a configuration and function, when transmitting document 1, the operator communicates with the designated destination, transfers document 1 to the device, and then presses the send button (not shown). Then, the receiving device (not shown) becomes ready for reception, and the transmitted document is sequentially fed out by a feeding mechanism (not shown), transported by the drive of the feeding roller R1, and read by the image sensor force 5 to be converted into image data. The converted data, which is binarized by the data control section 7, is sent to the main control section 7, compressed, and sent to the image memory 8, and sent to the line by the line control section 9.

A receiving device (not shown) performs processing such as decompression on the received data and reproduces it in a recording unit to form a received document.

In this case, the transmission text W1 of the transmitting device is often used to transmit multiple pages of documents, and the reading unit I sends them as shown in the figure, stacks them on one stacker, and feeds them out one page at a time as described above. It is read as follows and sent one after another.

According to this method, multiple pages of text,
14. A communication error occurred on line -1- during the transmission of l:1. When it is L, the transmission is interrupted, so it is necessary to retransmit after an abnormality occurs, which has the disadvantage that the work is troublesome.

(d) Invention 1”A invention θ month-1! This is to solve the shortcomings of ,L,1-, when sending multiple sheets of text, 1. jr, 1. , l, To provide a backup method that can easily perform I11 transmission due to normal operation.

((・)Invention (111 formation/F:, invention ε), 1g means for recording image data of a plurality of pages of manuscript, and 1.g means for recording the number of transmitted pages.
1) to record the image data of the scanned multiple pages of the manuscript. Describe in means a 1. At the same time as
When transmitting image data and a communication error occurs during transmission, after the communication error is recovered, proceed as described in 1. This is a send/N backup method in which the image data stored in the q means is retransmitted from the page where an abnormality has occurred, and by doing so, the purpose can be achieved.

(f) Embodiment of the Invention An embodiment of the invention will be described below with reference to the block diagram of FIG. 3. The same 〇zJ locations as in Fig. 2 are indicated by the same symbols.

In Fig. 3, 10 is a storage section, 11 is a file system ta.
Part 11 is shown.

The section 10 has a function of storing compressed image data for a predetermined number of pages.

The file control unit 11 has a function of reading out the image data input to the image memory 8 and accessing the memory tQ section 0, and also always keeps track of the number of pages that have been sent and the number of pages that have been successfully communicated. If an abnormality occurs, the number of pages where the abnormality has occurred will be displayed on the display section (not shown), and if you press the resend button on the operation section (not shown), the message will be displayed.
．． It has a control function to send out data from the displayed page in the image data stored in section a 1o.

With this structure and function, the multi-page document 1 is sequentially fed out one by one, and the image data read by the image sensor 5 is transferred to the pig control unit 6.
When the image data is converted into a value, compressed by the main control section 7, and sent to the image memory 8, the image data is sent to the LJ source control section 11.
is stored in the storage unit 10, and the image memory 8
The line controller 9 then sends the signal to the line.

Then, the receiving device (not shown) converts the received data to (1
It is processed in the same manner as January and reproduced in the recording section to become a received document.

When the transmission corresponding to a predetermined number of pages of image data ilk recorded in the first section 10 is carried out without any abnormality, the image data in the first section 10 is cleared.

If a communication error occurs on line H during U7 transmission 1-1, recording in the receiving device is interrupted, but reading continues in the transmitting device, and the image data is stored in the storage unit 10.
is memorized. Therefore, all image data of a predetermined number of pages are stored and stored.

Additionally, the number of pages in which a communication error has occurred is displayed on the display section.

Image data from the beginning of the displayed page after the communication error is restored. Therefore, in the storage unit 10, write 1. a
The image data from the beginning of the page where the communication error occurred among the image data currently being sent is sent to the line.

In this way, page-by-page management is possible, and retransmission can be started from the page where the communication error has occurred, so retransmission (i) can be easily performed without requiring much effort.

(+Details of the Invention As explained above, according to the present invention, when transmitting a multi-page document, retransmission due to a communication error can be performed from the page where the error occurred, so retransmission can be easily performed.
This has the effect of saving the effort of transmitting the transmitted document again.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram showing facsimile communication, FIG. 2 is a block diagram showing a conventional method, and FIG. 3 is a block diagram showing an embodiment according to the present invention. 43 in 1 'C11 is a transmission document, 2 is a reading section, 5 is a 1'] Sealer, 6 is a data control section, 7 is a main control section, 11 i:1. 1j indicates a line control section, 10 indicates a G section, and 11 indicates a file control section.

Claims (1)

[Claims] In an image transmitting device that reads an image written on a document as image data and transmits the read data for each document, 1. and a means for recording the number of transmitted pages, and when the image data of the read multi-vane document is recorded in the storage means, 1a! The image data is sent to l:, and the communication (Is
If J' also occurs secretly, after the communication abnormality is recovered,
Said 4. (f. Means Note 4. A transmission backup method characterized in that the image data being displayed is retransmitted from the page where the abnormality has occurred.