JPS6118253A - Picture processor - Google Patents

Abstract

PURPOSE:To allow the reception side to confirm it that one original is divided into >=2 pages by adding the 2nd and succeeding pages of divided picture information with a sub number of a page number added to the 1st page and transmitting the added result. CONSTITUTION:In transmitting one page of picture information while being divided into 1 pages, character information P1-1 added to the 2nd page is set to a register, the last half of the divided page is written in a coded pattern memory and transmitted. Then the reception side discriminates it that one original is divided into two pages.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an image processing device. [Prior Art] Recent image processing devices, such as facsimile machines, have advanced functions such as high resolution, high speed transmission, and Tonal expression, etc. are required, and for this purpose, the amount of data to be handled has increased, and at the same time, it has become necessary to process pixel information at high speed. As a result, in order to match the original reading speed and the high-speed processing capability of the encoding circuit, or the processing capability of the encoding circuit and the data transmission speed to the line, a screen memory is used to temporarily store and accumulate image data. A high-speed facsimile machine has been developed. Many of these devices use electrostatic recording printers that use fixed length recording paper to ensure high quality images on the receiver side. Because of this background, transmitters often have a limit on the length of a document in the sub-scanning direction. Therefore, when reading and transmitting a document whose length in the sub-scanning direction is longer than the length in the sub-scanning direction of the fixed-length recording paper on the receiver side, the image portion that exceeds the document's limit length will be deleted and recorded on the receiving side. Therefore, one page of image information may be divided into two pages and sent, but the receiving side
There was a drawback that it was unclear whether an image divided into pages was originally one page or two pages.

〔the purpose〕

Therefore, the present invention has been made in view of the above points, and an object of the present invention is to enable the receiving side to immediately determine that one page of image information has been divided into two or more pages. That is, in an image processing apparatus having a transmitting means for dividing image information into two or more pages and transmitting the divided pages, and a means for adding a page number to the image information, one page is added to the second and subsequent pages of the divided image information. It is an object of the present invention to provide an image processing device that adds a sub-number of a page number added to the page number and transmits the result.

〔Example〕

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

The apparatus according to this embodiment reads originals up to A4 size in the main scanning direction, adds a page number to the read image information, performs MH encoding, stores it in the screen memory, and reads out the page data from the screen memory. This is a facsimile machine that sends information over a line. Line density in sub-scanning direction is 8ttne/w
If the length in the sub-scanning direction exceeds the A4 size, that is, the number of sub-scanning lines is 8 tine X 297 (row) = 2376
If a document that exceeds the Line is read, it is divided into two pages and sent as shown in FIG. Furthermore, as shown in FIG. 1, information obtained by adding a subnumber to the page number of the first page is added to the second divided page.

FIG. 2 is a block diagram showing the configuration of this device. Reference numeral 201 denotes a reading circuit, which is a known circuit using a CCD image sensor, and while reading one line of data, sets the line signal 2-2 to H to notify the control unit 207. Original detection signal 2-8 to H
The control unit 207 is notified of this. When the reading υ start signal 2-1 is received from the control unit, reading and printing of the original is started.
When reading and writing are completed, a reading and writing completion signal 2-3 is sent to the control unit. 202 is a binarization circuit, and the reading section 201
This is a well-known A/D converter that converts the analog image information that has been transferred to a binary white/black electrical signal. 203 is a multiplexer, and the data from the binarization circuit 202 or C
Either one of the data from the G circuit 206 is selected and sent to the MH encoding circuit 204, which will be described later. Note that when the CG start signal 2-4 is H, data from the 00 circuit is selected, and when it is L, data from the binarization circuit 202 is selected. Reference numeral 204 denotes an ME encoding circuit, which is a known code compression circuit that converts black and white binary pixel data into a run-length code and then performs MH encoding. When the change occurs, the second Ising edge starts operating, and the RTC insertion command 2 is sent from the control unit 207.
-6, the page end code (R1'C: E
OL (two consecutive OLs) is generated, and the encoding operation ends. The output data of the MH encoding circuit 204 is written to the screen memory 205 by the screen memory write pulse 2-7. This screen memory write pulse 2-7 is MH
One bit is generated for each bit of code. Reference numeral 205 denotes a screen memory, which is a known memory circuit composed of RAM. 206 is a 00 circuit, which is a known character generator circuit composed of a ROM circuit that stores character information.
If a character is selected in advance by the control unit 207 using the CG upper set number 2-5, the set character information is set to 8L by the CG start signal 2-4.
The data for 24 lines (approximately 3 cm) is transferred to the MH encoding circuit 204 at a linear density of ine/m. 208 transmits image information.
209 is a control signal transmitting/receiving circuit, each of which is a known line interface circuit.

The control unit 207 is a microcomputer/ROM/RAM
It is a CPU circuit consisting of many different types.

FIG. 3 is a timing chart of main signals, and FIG. 4 is an operation flowchart of the control section. This will be explained below with reference to FIGS. 43 and 4. However, LIN, X, CH in Figure 4
R indicates the address value of the variable storage area of the RAM in the control unit, (X) indicates the contents of address X, and indicates character data. For example, 'P, (X)-1' represents the character P, 11 when the content of address X is 1.

The control unit 207 first transmits a transmission request signal to the line via the control signal transmission/reception circuit 209 (step 401). When receiving the reception function signal from the line, the reception command signal is sent to the line again (steps 402, 403). In this way, the preparation for transmitting the image signal is completed.

Next, set the CG start signal and RTC insertion command signal to L, set the line counter register LIN to 0,
Page number register X is set to 1 (step 404). The page number information (Yp, IY> to be added to the first page) is set in the register C--R (step 405).

Next, the contents of register C) (H are notified to the C0 circuit 206 using CG upper set number 2-5, and the reading start signal 2-1 is set to H (step 406). o The reading section 201 starts reading the original. As shown in FIG. 3, the line signal 2-2 is transmitted to the control section 207. When the control section 207 detects the first rise signal 2-2, it sets the register LIN to 1.
and immediately sets the ICCGCC-to signal 2-4 to H (steps 407, 408, 409). When the CG start signal 2-4 becomes H, the multiplexer 203 changes the CG start signal 2-4 to the i#) character image information from the ca circuit 206 and selects the character image tW information specified by the register CHRVc. -2 is sent to the MH encoding circuit 2.04. The control unit 207 registers the register LI every time it detects the line signal 2-2.
The contents of N are incremented by 1, and when the contents of register LIN reach 24, that is, when all the cached image information has been transferred to the MH encoding circuit 204, the CG start signal 2-4 is set to L (step 410). .411)
The multiplexer 203 selects the image signals from the 9th section and transfers them to the MH encoding circuit.

That is, the MH encoding circuit 204 MH encodes the character image information for the first 242 inches in synchronization with the line signal 2-2 and writes it to the screen memory 205. Image information t transferred from
7VIH encoded and stored in the screen memory 205. - The control unit 207 simultaneously monitors the reading from the reading unit 201, the 9-end Confucian code 2-3, and the line signal 2-2. If a reading and ending signal is detected before the contents of register LIN reach 2377 (step 412)
, RT C matchmaker command 2-6 is set to H (step 413
) M) I Input R'1" C (page end code) in the I encoding circuit 205?j=qi One person completes the encoding of one page of the original. Then, after setting the RTC insertion command 2-6 to L, (Step 414), increment the register
16).

Then, set the reading start signal to L (step 4 i
7), a transmission end signal is sent to the line via the control signal transmission/reception circuit 209. When a reception confirmation signal is received (step 418), a document detection signal is used to determine whether there is a next document in the reading section. If there is a manuscript, return to step 4069. Repeat the above operation. If there is no original, send a communication end signal to the line Step 42
1) End the transmission operation. However, if it is detected that the contents of the register LIN have become 2377 before the end of reading (step 421-1), the MH encoding circuit is instructed to insert an RTC in order to divide the page (step 4).
22, 423), character information vP, 1-1' to be added to the second page is set in register CHR (step 424), and register LIN is cleared to 0 (step 425). Then, when a transmission end signal is sent to the line (step 426) and a reception confirmation signal is received (step 427), the CG circuit is again sent the CHR of & (p, l
-1) and set the CG start signal to °H'' (
Step 406). Thereafter, the subsequent divided page is encoded and written into the screen memory by the same operation as described above.

However, in the above method, as shown in Figure 3, 2378
Although the information on the line is completely lost, the loss of one scanning line is considered to be sufficiently negligible. Note that the image transmission procedure is shown in FIGS. 5 and 6.

However, Fig. 6(a) shows the case where only one page is transmitted (b).
) is a case where the data is divided into two pages and transmitted.

In addition, for the above embodiment, if it is notified in the facsimile pre-control procedure before image transmission that the receiving device communicating with this device is using roll paper instead of standard length recording paper. In other words, it is possible to provide a function to transmit the document as one page even if the length of the document exceeds the standard size when notified by the reception function signal.

This makes it possible to reduce the communication time with the other party's receiver that uses roll paper. That is, the part A in FIG. 6 Φ) can be eliminated. A flowchart of the control section in this case is shown in FIG.

This differs from FIG. 4 only in step 722, but otherwise is the same. In step 722, it is determined based on the reception function signal whether the other receiver is using roll paper or not, and if it is, the loop is repeated until a reading completion signal is received.

〔effect〕

As described above, according to the present invention, when image information is divided into two or more pages and transmitted, subordination information of the additional information added to the first page is added to the second and subsequent pages and sent. The user can instantly determine that a single document has been divided into two pages, which is very useful when organizing received recorded images.

[Brief explanation of the drawing]

Claims (1)

[Claims] In an image processing device having a transmitting means for dividing image information into two or more pages and transmitting the divided image information, and means for adding a page number to the image information, adding the divided image information to the first page after the second page. An image processing device characterized in that a sub-number of a page number is added and transmitted.