JPS6276994A - Document communicating method - Google Patents

Abstract

PURPOSE:To improve transmission efficiency with the simplification of a protocol by constituting a document constituted with each plural blocks of character code blocks and bit image blocks with blocks less than the plural blocks and transmitting a page. CONSTITUTION:The document C of one page after editing is constituted with the blocks 1-6 of character codes and the blocks 7 and 8 of bit images. The document is divided into two blocks: a code block (a) and a bit image block (b). In the code block (a), since a part corresponding to the block 7 is at line end, no codes are necessary to be packed. The part corresponding to the block 8 is filled with an empty code, such as a space or a tab, etc., at a space to the next character code. The bit image block (b) is made as one block including at least blocks 7 and 8 to form the minimum rectangular block (the size is optional for the rectangular block having no limitation).The part corresponding to character code block of the document C is packed with an all white bit.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a document communication device, particularly to a method for creating a transmission document in a teletex/mi/dust terminal.

(Prior Art) There have been proposals for methods that can mix and transmit character codes and bit images.

As a mixed terminal transmission method, a method has been considered in which one document is assembled into a set of a plurality of blocks, including character code blocks and bit image blocks, and the blocks are sequentially sent.

However, when a large number of letters, photographs, and pictures are mixed together, the number of blocks becomes large, and the protocol for transmitting each block becomes complicated, resulting in poor transmission efficiency.

(Purpose of the blade) In order to eliminate the above-mentioned drawbacks, the present invention aims to improve documents in which character codes and bit images are mixed on one page, especially documents consisting of multiple blocks each of character code blocks and bit image blocks. By transmitting one page using fewer blocks than the plurality of blocks, transmission efficiency can be improved by simplifying the protocol.

Also, blocks in which character codes and bit images overlap (transparent overlay blocks) can be easily transmitted.

In particular, transmitting one page using one text block and one image block greatly improves transmission efficiency.

(Embodiment) FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a perspective view showing the above embodiment.

The reader 10 reads a predetermined document and outputs an electrical signal.

Is the facsimile body 20 a reader/printer interface? ■, an image compression unit (hereinafter referred to as rIcUJ) 22, a program memory (hereinafter referred to as rPMEMJ) 23, and a dot move unit (hereinafter referred to as rPMEMJ) 22,
24, image memory (hereinafter referred to as rIMEMJ) 25, and video RAM (hereinafter referred to as rIMEMJ) 24,
VRAMJ) 26, and a central processing unit (hereinafter referred to as rcj).
U, J) 27, bus 29, and communication control unit (hereinafter referred to as rCCUJ) 3
0.

The ICU 22 compresses or expands data, and in order to increase the encoding rate, two-dimensional compression (high pressure '#
) has been adopted. The PMEM 23 has an OS program and an application program memory area for controlling the input/output devices provided around the facsimile main body 20 and each unit in the facsimile main body, and also converts character codes into image data. It has a font memory and area for.

The PMEM23 also has a memory management unit (MMEU), which allows data to be transferred from the hard disk to the CCU3.
It also has a work area as a buffer for transmission data to be sent via the CCU 3O and stored from the CCU 3O to the hard disk. Note that the above buffer is for adjusting the speed of the whistle. It also stores the code data of the text written by the key 61.

The BMU 24 performs image editing (image processing) in the CRT 60, and enlarges, reduces, rotates, moves, or cuts a predetermined image.

The IMEM 25 has 4 Mbytes and stores images from the reader, images edited by the BMU 24, data decompressed by the ICU 22, and data converted from character codes to images. be. Here, one page of mixed document information is composed of a block of bit image data and a block of character code data. Each block data is attached to PMEM with an identification code and an attribute code indicating the block position.
, and stored in IMEM. Note that an attribute code can also be added to each block when it is transmitted.

The VRAM 26 stores image data to be displayed on the CRT 60.
It is stored using bitmap code.

Furthermore, a hard disk device 50 and a floppy disk device 51 are provided as external storage devices. Although these devices are non-volatile memories, backup memories may be used as the non-volatile memories.

The keyboard 61 is used to input characters and the like and to specify the position of the CRT 601 using a cursor. Mouse 62 is one of the pointing devices. In addition, a printer 70 is provided.

Next, the operation of the above embodiment will be explained.

FIG. 4 is a flowchart showing the transmission operation in the above embodiment. The flowchart below shows PMEM23
The CPU 27 executes the program based on the program stored in the CPU 27.

Figure 3 (C) shows a one-page document as a result of editing. Blocks 1 to 6 are character code blocks, and blocks 7 and 8 are bit image blocks. In this way, there are character codes in the document. If bit image blocks are mixed, a large number of blocks will be required.

This is divided into two blocks in Figure 3 (a) and (b).
). They become blocks 9 and 10, respectively.

Figure 3(a) is a code block, block 7 in it.
The part corresponding to is at the end of the line, so there is no need to fill in any code. In the area corresponding to block 8, the space between the next character code and the next character code is filled with a blank code such as a space or a tab.

Figure 3 (b) is a bit image block, and in order to make it the smallest rectangular block, it must be one block that includes at least blocks 7 and 8 as shown in the figure (particularly if it is a rectangular block that does not have this restriction, the (optional), 3rd
The portion corresponding to the character code block in Figure (C) is filled with blank bits.

FIG. 4 shows a processing chart of block conversion.

The bit image data from the reader 10 and the code data from the keyboard 61 are combined on the CRT 60 and the third
Edit the sentence as shown in Figure (C) and input the code indicating the block boundary and the code indicating the attribute of the block. It is determined from the attribute code whether there is a character code block in it (2), and if there is, P1 is determined whether there are multiple blocks (3), and if there are multiple blocks, the image area between the blocks is filled with space codes ( 4). Then, delete the code indicating the block boundary, change the attribute, and store it in PMEM as one block with only character code (5) 6 Next, determine whether there is a bit image block from the attribute code 6) , if so, determine whether it is multiple or not.7)
, if there are multiple, fill in the spaces between the blocks with all white bits (8)
. Then, delete those block boundaries, change the attributes, and store it in IMEM as one block consisting of only bit images (9)0. Next, determine whether there are multiple blocks in total (10), and now character code block 9. Since there are two blocks with image block 10, a superimposition attribute code that means that both blocks are superimposed on point A of block 9 is set in PMEM. Then, by inputting a transmission command, the attribute code is transmitted, and then PMEM
.

The code data and bit image data stored in the IMEM are sequentially transmitted. The attribute code can also be sent after sending the document data.

On the receiving side, the transmitted document data 9 and 10 are stored on the disk 50, and then stored in the PMEM.

Transfer to IMEM, detect the block superimposition attribute sent before or after, superimpose block 9 and block 10, and reproduce the transmitted document of FIG. 3(c) on the CRT 60-H or printer 70. I can do it.

FIG. 5(C) is a sentence that has a block 12 in which character code and bit image data are superimposed between character code blocks 11 and 13.
can be divided into a code block 12-1 and a bit image block 12-2 of the same size and sent. In that case, there will be a four-block configuration, but the heavy 1) block 1
2 into smaller blocks, fewer blocks are required and transmission efficiency is improved. In this case, a superimposed attribute coat is applied to block 12 while leaving other block boundaries and attributes intact, and on the receiving side, the transmitted block 12-1.
Only 12-2 is overlapped and reproduced.

In addition, FIGS. 5(a) and 5(b) show that sentence 3(c) on one page including overlapping blocks is divided into two blocks (character code block 14.
It consists of bit image blocks 15), the block boundaries are deleted in the same manner as described above, a superimposition attribute code based on point B is attached, and the data is transmitted, and the receiving side reads the data of blocks 14 and 15 according to the attribute code. Combine and display or print.

In addition, the code block 12-1 of the superimposition block 12 is expanded into data as a bit image via CG in the memory PMEM, and overlay composited (takes a logical OR) with the bit image data of the bit image block 12-2.
It is also possible to store it in the memory IMEM in an image pattern such as C). In this case, since the boundary and attributes of code block 12-1 are deleted, only three blocks are required, and the transmission efficiency is increased in this respect. The boundaries and attributes of block 12 are the same as block 12-2.

As described above, according to the wooden sword method, a large number of image bit blocks and code blocks can be realized with fewer blocks, S, transmission efficiency can be improved by simplifying the protocol, and the cost reduction effect is significant.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a communication device according to the present invention, FIG. 2 is a perspective view of the communication device according to the present invention, FIGS. 3 and 55 are document data formats, and FIG. 4 is a flowchart showing a communication method. , 10 is a document image reading device,
61 is a character input device, and PMEM and IMEM are memories.

Claims (1)

[Claims] In a method of transmitting or transmitting/receiving character codes and bit images, document information consisting of multiple blocks each of character code blocks and bit image blocks is combined into fewer blocks than the above-mentioned multiple blocks and one page is transmitted. A document communication method characterized by: