JPS6370661A - Data communication system - Google Patents

Abstract

PURPOSE:To facilitate operator's operation on a reception side by displaying only rough information in a picture of one page when the amount of data is large and displaying detailed data information by a mouse input indication. CONSTITUTION:Data received through a line 40 and a communication control unit 30 is stored on a disk 50 and when the data is received, the reception is displayed on a CRT 60. When it is judged that the received data contains data having detailed block data from a transmission side, a block area is secured on an image memory 25 on the basis of information on the address and size of the block data. Then it is outputted on a printer 70 through an interface 21. Further, when the data is displayed on the CRT 60, that is read out of a VRAM 26 and displayed. Further, that the corresponding block data has the detailed block data is displayed on the CRT 60 and the response of the reception side becomes easy to know. Then, the input to the block area is instructed with a mouse 62 and an editing process is carried out.

Description

[Detailed description of the invention] 〔Technical field〕 The present invention relates to a data communication system.

[Conventional example]

Conventionally, when displaying received data on a CRT with this type of device, the amount of data that can be displayed on the screen at one time is limited, so when the amount of data is large, it is divided into several screens or the data is reduced. The disadvantages are that the operator's operations are complicated and the display is difficult to read.

〔the purpose〕

The present invention eliminates the drawbacks of the conventional example described above, and when the amount of data is large, it is possible to display only general information on a single page screen and display detailed data information by manual input using a mouse. This makes it easier for operators on the receiving side to operate.

(Example) An example of the present invention will be described in detail below with reference to the drawings.

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.

The facsimile main body 20 includes a reader/printer interface 21, an image compression unit (hereinafter referred to as "ICU") 22, and a program memory (hereinafter referred to as "r").
PMEMJ) 23, bit move unit (hereinafter referred to as BMUJ) 24, and image memory (hereinafter referred to as r1).
MEMJ) 25 and video RAM (rVR
AMJ) 26, central processing unit (hereinafter referred to as rcPUJ)
) 27, a communication interface 28, a bus 29, and a communication control unit (hereinafter referred to as rCCU) 30.

The ICU 22 compresses or expands data,
Two-dimensional compression (high compression) is used to increase the coding rate. The PMEM 23 has an input/output device installed around the facsimile main body 20, which has an OS program and an application program memory area for controlling each unit in the facsimile main body, and also has a memory area for converting character codes into image data. It has a font memory area.

In addition, PMEM23 is a memory management unit (
It also has a work area as a buffer for transmission data to be transmitted from the hard disk via the CCU 3O and stored from the CCU 3O to the hard disk. Note that the above buffer is a disk,
This is for adjusting the speed of lines, etc.

The BMU 24 performs image editing (image processing) on the CRT 60, and enlarges, reduces, rotates, and
It is used for moving or cutting.

IMEM 25 has 4 bytes and can store images from the reader, images edited by BMU 24,
It stores data decompressed by the ICU 22, word processing code data based on key code characters, mixed data, or data obtained by converting character codes into images. Here, in the case of mixed data, an identification code is attached to the image block and character block and stored. Further, the r MEM 25 is used to match the speed of the reader 10 and the line 40 by temporarily storing predetermined data, and is used as a VRAM.
26 is CRT601. : The image data to be displayed is stored as a 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 a position on the CRT 60 using a cursor.

, 62 is a pointing device. In addition, a printer 70 is provided.

The mixed mode terminal of this embodiment can communicate image data, character data, and data in which image and character data are mixed.

First, in the case of transmission, the original to be sent is divided into multiple blocks (image data or character data may be divided into multiple blocks), such as an image area and a character area, and position information and size information are assigned to each block. Information etc. are added in the form of a code, and packets are exchanged between receiving devices in units of blocks.

Figure 3 (a), (b), (c), (d).

(e) is a diagram showing the data structure according to this embodiment.

A in FIG. 3(a) is transmission information data such as the name of the sender, the date and time of transmission, and the number of originals. B is base data,
The page data B includes an identification code indicating whether the manuscript data of one page is all character data, all image data, or a mixture of character data and image data, and the number of manuscript data of one page. It consists of a code indicating whether it is composed of block data. C is a code indicating that block data continues. D and E are block data, and E' is detailed block data of block data E. Above transmission data A, page data B, block data instruction code C
is added by the sending device.

FIG. 3(b) is a diagram showing the data structure of the block. a is block address information.

b is block size information, C is information indicating that the block data is an image, and d is information indicating the type of encoding of the image data. For example, if the block image data is MH, MR, MMR. This shows which encoding method is used for encoding.

e is information indicating the scanning density of image data in the sub-scanning direction, and f is image data.

In FIG. 3(C), C' is information indicating that the block data is a character, d' is information indicating a new style of character, such as the size of the character, the direction in which the characters are arranged, etc., and g is information indicating the new style of the character. This is character data.

Fig. 3(d) shows the data structure when detailed block data is added to the image block, Fig. 3(e) shows the data structure when detailed block data is added to the character block, and h shows the data structure when the detailed block data is added to the block data. This is information indicating that data has been added.

First, data creation in FIG. 3(a) will be explained.

The operator edits the image data read by the reader 10 and the character data input by the keyboard while viewing the image on the CRT 60. The operator divides one page of document data while looking at the one page document displayed on the CRT 60. At this time, the operator inputs the address and size of each block using the pointing device 62 and keyboard 61, and then inputs the address and size of each block, as shown in FIG. 3(b). , (c
), (d), and (e), address information a and size b are added, and if the block is image data, information C indicating that it is image data is added, and if it is a character block, it is a character block. Information C' indicating that it is data is added. Further, the image data read by the reader 10 is encoded by the ICU 22, and information e indicating the encoding method d and the scanning density of the image data in the sub-scanning direction is also added.

New style information d' of the character is added to the character data.

In addition, when dividing one page of a manuscript into multiple blocks, if one block in the manuscript is a block with detailed information, the operator inputs an instruction indicating that the block has detailed information from the keyboard 61. and create detailed block data. The creation method is the same as normal block data, and the detailed block data is shown in Figure 3 (b) and (c).
It has a data structure of Then, information indicating that there is detailed block data shown in FIGS. 3(d) and (e) is added.

All of the above-mentioned information is added by the CPU 27, and a one-page manuscript is thus created and stored in the hard disk 50.

When transmitting, the operator operates the keyboard 61 and causes the CPU 27 to read the transmission document data from the hard disk 50. The data to be sent is shown in Figure 3 (
The sender information data A and page data B in a) are added manually using the keyboard 61. Further, a code C indicating that block data follows and block data D and E are added. When block data E has detailed block data E', detailed block data E' is added after the block data. In this way, the transmission data shown in FIG. 3(a) is created and transmitted to the receiving device via the CCU 3O.

Next, reception will be explained. FIG. 6 is a flowchart showing the control operation of the CPU 27 when outputting data.

Data received via the line 30 and CCU 3O is first stored in the hard disk 50. When data is received, a message indicating that data has been received is displayed on the CRT 60. When displaying the received data on the CRT 60 or printing it out using the printer 70, the operator specifies the original data using the keyboard 61 and manually executes the display or printout.This causes the CPU 27 to transfer the specified original data to the hard disk. It is read out from the device 50 (step Sl in FIG. 6).

Then, the data shown in FIG. 3(a) is developed into dot data and stored in the IMEM 25. The CPU 27 determines whether the data in the block is image data or character data based on the data identification information C1C' added to the block.S5. S6), in the case of image data, I is based on the encoding information d1 and the pixel density data e.
The CU22 performs decoding (S7), and the IMEM2
Dot data is stored in that block area of 5 (S8
). In the case of character data, the character is expanded (SIO) based on the font data stored in the PMEM 23 based on the new style information d', and the dot data is stored in the block area of the IMEM 25 (S11).

If the received data includes block data with detailed block data from the sending side, as shown in Figure 3(d).
, the data structure shown in (e) is received, and based on the information indicating that there is detailed block data, it is determined that the corresponding block data has detailed block data (S4), address information a, size b of the corresponding block data Based on the information, a block area is secured in IMEM25 and the reader/
It is output to the printer 70 via the printer interface 21. Also, when displaying on the CRT 60, the block data is read out to the VRAM 26 and displayed on the CRT 60. At this time, it is displayed on the CRT 60 that the corresponding block data includes detailed block data, making it easier to understand the response from the receiving side. An example of the display at this time is shown in FIG. 4(a).

Next, the operator executes editing processing on the detailed block data by manually specifying the corresponding block area using the mouse 62. The detailed block data has the data structure shown in FIGS. 3(a) and 3(b), and a block area is secured in the IMEM 25 based on the information of address a and size b, and the reader/printer interface 21
The data is output to the printer 70 via the . Also, when displaying, the detailed block data is read out to the VRAM26 and then transferred to the CRT.
60. As another example, FIG. 5(a)
5 is a display example of a corresponding block. Detailed block data is displayed by manually pointing an area within the corresponding block using the pointing device 62, and by superimposing and displaying the corresponding block data and detailed block data, the display shown in FIG. It will be displayed as shown in b). Also, Figure 5(b)
Pointing device 62 to the area within the detail block of
By giving an input instruction, it is possible to return to the display shown in FIG. 5(a), and the display can be switched.

(Effects) As explained above, the present invention allows for richer data representation, making it easier for operators to use it.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing one embodiment of the present invention, Figure 2 is a perspective view of the above embodiment, and Figures 3 (a), (b), (c), (d) and (e) are The data structure diagrams, Figures 4 and 5 are display examples of block data that the receiving side has detailed block data in one page of original data (
a) and (b) when detailed block data is displayed. FIG. 6 is a flowchart when data is output. 10 is the leader, 23 is PMEM, 25 is IMEM126
VRAM 27 is a CPU, 30 is a CCU1, 40 is a line, 50 is a hard disk device, 51 is a floppy disk device, 60 is a CRT, 61 is a keyboard, 62 is a pointing device, and 70 is a printer.

Claims (1)

[Claims] A data transmitting means for transmitting data divided into a plurality of blocks, a transmitting means for adding detailed data of the block to the block data, and a receiving means for receiving the data divided into a plurality of blocks. . A data communication system characterized in that a block obtained by adding detailed block data to the block data is received from a transmitting side, an input instruction is given based on the instruction of the block data, and the detailed block data is displayed.