JPS5933540A - Communication controller - Google Patents

Abstract

PURPOSE:To synthesize code information and image information, by setting an image area on a screen buffer, and storing the image information from an electronic computer to the image buffer after converting the code information in the screen buffer into the image information. CONSTITUTION:An image area is set to an optional area of a buffer 6 by designating an optional row and column of the screen buffer 6 of a communication controller 2 from the electronic computer 1. Further, the code information in the buffer 6 8s converted into the image information at each column in the unit of row, and the image information from the computer 1 is stored in an image buffer 8 when the row and column correspond to the image area during the processing after the code information in one row is converted all into the image information. Thus, the code information and the image information from the computer 1 are synthesized and transmitted to a line.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a communication control device that is connected to a computer, is controlled by instructions from the computer, and exchanges information through a line. In particular, the present invention relates to a communication control device having a function of combining code information and image information from a computer and transmitting the composite to a line.

(b) Technical background The data handled by facsimiles and the like is not limited to only text, but often contains graphs, figures, etc. inserted into text a, as shown in Figure 1.

When processing such a document mixed with graphics on a computer and transmitting it by facsimile, etc., the handling is different from that of a document consisting only of characters. That is, parts such as figures are also composed of a collection of pixels, but since the shape of a figure is infinite, it is impossible to encode it.

(C1 Prior Art and Its Problems By the way, terminal devices capable of transmitting and receiving image information include displays, printers, facsimiles, etc.

Conventionally, when transmitting images from a computer to these terminal devices, the following methods have been used.

■Sentences, figures, etc. are stored in advance in the form of image information directly in the memory of a computer, and the stored image information is sent to a terminal device via a communication control device or the like.

(2) A character generator (CG) converts text edited with code information into image information corresponding to the code information, and sends it to the communication control device.

However, with the method (■), a manuscript containing text and figures is created in advance as data for one size (for example, A4 size), and all of it is converted into image information using a facsimile machine or the like and input into a single electronic machine. In order to store information, text, graphics, etc. are all similarly stored in a memory in a computer as image information, that is, a collection of pixels. Therefore, it is impossible to directly partially change or insert the stored image information. Even if you want to partially change or insert text or figures (for example, change the date), you should change or insert the original before it was stored in the computer, or create a new one and send it again by facsimile, etc. had to be entered and accumulated through . However, it is troublesome to modify or create a uniform hard copy manuscript before inputting it.

On the other hand, with method (■), code information can be easily changed and inserted from a keyboard, etc., so it is easy to change and insert stored contents, but it is difficult to convert figures etc. into codes and generate them in CG. Therefore, only characters and symbols determined by the system could be used, and image information such as figures and maps could not be inserted.

This has been improved by storing parts that can be expressed with code information in the form of code information, leaving areas that cannot be expressed with code information blank, and inserting image information into those areas. However, since such processing is performed by a computer, it increases the load on the computer itself, increases memory and file capacity, and is economically disadvantageous.
The drawback was that it did not adversely affect the performance of the system.

(d1 Purpose of the Invention) In order to solve such problems in conventional image information processing, the present invention converts code information into image information within a communication control device, and converts image information such as figures during the conversion process. The purpose is to be able to synthesize.

(Structure of the e1 Invention To achieve this object, the present invention provides a screen that is connected to an electronic 81 computer, is controlled by instructions from the computer, and stores code information such as characters and symbols input from the computer. In a communication control device that has a function of preparing a buffer for each line, converting the code information of the screen buffer into image information and sending it to the line, specifying any row or column of the screen buffer from a computer. sets an image area in any area of the screen buffer, converts the code information in the screen buffer into image information row by row and column by column, and during that process, the accompanying columns are set in the image area. When this happens, or after converting all the code information in one line to image information, the image information from the computer is stored in the image buffer, and the code information and image information from the computer are combined to connect the line. The configuration is such that it is sent to

(f) Eighth Embodiment Next, how the communication control device according to the present invention is actually implemented will be explained using an embodiment. FIG. 2 is a diagram showing the principle of the present invention, where ◯ indicates an electronic meter Wta, and 2 indicates a communication control device. Electronic meter 1. The machine 1 has a central processing unit 3 and a main storage device 4.
and an auxiliary storage device 5 such as a magnetic disk device. The communication control device 2 is generally used for online-related control, and has its own processing device separate from the central processing device 3 of the electronic computer.

The communication control device 2 includes a screen buffer 6 for one page, and the number of screen buffers 6 is the same as the number of lines that the communication control device 2 can process.

This screen buffer 6 stores information in the form of two-to-one information, and character information is entered manually using the keyboard 15 of the terminal device. In order to read out this screen buffer 6 and output it in the form of an image, a character generator (r CG
This is done by extracting a character pattern corresponding to the 2-1 information from the 2-1 information (abbreviated as J). By the way, in order to use memory efficiently, CG separates characters into alphanumeric characters (i.e. alpha/numeric characters), JIS level 1 characters, JIS level 2 characters, and user-defined characters, and stores them in separate storage units. It is better to store it. That is, for alphanumeric characters, CG1 for alphanumeric characters is provided in the communication control device 2,
The alphanumeric part in the screen buffer 6 is this alphanumeric CG7.
is extracted and stored in Image No.7F8. Like the screen buffer 6, this image buffer 8 is also provided for each line.

The CG41 of JIS first level characters is stored in the main memory 4, and the JIS first level characters in the screen buffer 6 are extracted by extracting the CG41 from the main memory 4. The pattern is image buffer 8
is memorized.

CG5 for JtS level 2 characters and user-defined characters
1 may also be provided in the main storage device 4, but in order to reduce the load on the main storage device 4, in this example, the auxiliary storage device 5
is stored in. Separately from the screen buffer 6, a second code buffer 9 is provided for each line, and second image buffers 10 for patterning and storing the code information in the code/sofa 9 are provided in the same number as lines. The second image buffer 10 is read out and character patterns are stored in predetermined columns of the image buffer 8.

Graphics that cannot be coded, such as characters, are stored in the image information storage area 42 of the main storage device 4 by inputting them by facsimile or the like.

When inserting a figure or the like, this image information storage area 42 is read out and inserted into the image buffer 8 at a position corresponding to the figure position B of the screen buffer 6.

For example, the case where a document mixed with figures as shown in FIG. 1 is synthesized will be explained as follows. First, the character part a in FIG. 1 is stored in the screen buffer 6 and the second code buffer 9 in the form of code information, and then the part a of the character shown in FIG. It is stored in . In the screen buffer 6, the main memory 4
When storing code information with the specified number of digits from J
Detects the code of the Is second level or user-defined character, and sends alphanumeric code information and J to the screen buffer.
Code information of IS first level characters is stored, and code information of JIS second level or user-defined characters is stored in the second code buffer 9. Then, the second code buffer is read out, the corresponding character pattern is extracted from CG51 for JIS second level characters, and is stored in the second image buffer 10, so that input to the image buffer 8 can be performed at high speed. Let's do it like this.

As shown in FIG. 3, in the screen buffer 6, in order to secure an arbitrary area B for inserting a figure,
An image area is set in an arbitrary area in the screen buffer 6 by specifying an arbitrary row and column. For example, the image area B is set in the area from row x1 to row xz and column yi to column 72 of the screen buffer. In this way, data representing the beginning and end of image area B is stored line by line in the area of the screen buffer where images such as figures are stored.

With the code information and image information stored in this manner, the code information in the screen buffer is converted into image information line by line. That is, the code information in the screen buffer 6 and the code information in the second code buffer 9 are converted into image information and stored in the image buffer 8. That is, when the storage in the screen buffer 6 is completed, it is determined whether or not the second code buffer 9 stores code information of JIS second level or user-defined characters. If the code information is stored, the code information in the second code buffer 9 is transferred to the processing device 3, and a request is made to transfer the image information corresponding to the code information. Upon receiving the image information from the processing device, it is stored in the second image buffer 10. When the code information is JIS level 2 or user-defined characters, the second image buffer 10
Image information is extracted from the image buffer 8 and transferred to the image buffer 8. Regarding alphanumeric characters, CG7 for alphanumeric characters is read, and a portion of the JIS first level characters are transferred to the image buffer 8 without reading CG4L of the main storage device 4.

Further, in order to insert image information into a position corresponding to image area B, the image information storage section 42 of the computer is read out and the image information is inserted into the image buffer 8.

Such composition is performed line by line in the screen buffer 6. For example, in the case of a document as shown in Fig. 1, CG7.41 is extracted line by line from the first line, and the second image processor 10 is read out, converted to image information, and sent to the communication line. Sent out. And in Figure 1 “
In the case of character information such as "1 book B", "1" and rBJ of the characters "1 book B" are extracted from the alphanumeric CG 7, and "book" is extracted from the JIS No. 1 in the main storage 4. 1
Extracted from the level CG. User-defined characters and JIs 2nd
If there are characters of the same level, they are extracted from the CG 51 of the auxiliary storage device 5 in advance as described above and stored in the second image buffer 1.
Accumulated in 0. In this case, one line in the screen buffer 6 is converted into image information one character at a time, starting from the left digit, for example, and added to the image buffer 8 according to its code information. At that time, alphanumeric characters are extracted from CG7 for alphanumeric characters, JIS 1st level characters are extracted from CG41 for JIS 1st level characters, and JIS 2nd level characters and user-defined characters are extracted from CG41. The process of reading data from the two-image buffer 10 is performed sequentially according to one row of code information.

Areas containing only text can be processed in this way without reading CG7.41.51, but areas containing graphics are processed as follows. FIG. 4(a) is an enlarged view of the line that the screen buffer 6 consists of, for example, the first line that spans the image area B part and the area A of text a. This shows how two rows are output to the image buffer 8. FIG. 4(b) shows the image buffer 8 in which lines spanning the image area and text area are stored in the form of image information. The text area is CG7.
41.51 is extracted, converted into image information line by line, and input into the image buffer 8. When a pointer indicating the start of image area B is detected in a line consisting of the following lines, image information of the corresponding line is read out from the image information storage section 42, and image information β is inserted. When the end of the image area is detected, image information α such as characters and symbols is inserted in place of the image information. Once one line of image information has been stored, it is sent over the line to a facsimile. Transmission to the line is performed in units of one doso I line, but by preparing two image buffers for each line, the screen is sent out while one doso I line is being sent out. The next line in 6 can be converted into image information. By repeating this process for each line, a document containing a figure inside the sentence a as shown in FIG. 1 is created.

Note that when converting from the screen buffer 6 to the image buffer 8, all the code information in one line may be converted into image information α, and then the image information β corresponding to the image area may be stored in the image buffer.

The above-described processing is performed for each communication line under the control of the processing device 3, and image information is sent out.

In this way, text information and graphic information are synthesized, but when changing part of the text information, for example, when correcting the date, the data stored in the screen buffer 6 can be transferred to a file, etc. The code information at the corresponding address in the screen buffer 6 is corrected by reading out the data, displaying it on a display, etc., and correcting only the portions that require correction. If you want to correct or change the image information, you only need to correct or change only the image information part and store it again in the image information storage unit 42 of the main storage device 4 by facsimile or the like.

In the illustrated example, the CGs of alphanumeric characters, JIS level 1 characters, and JIS level 2 user-defined characters are provided in different storage means, but they may be provided in one or two types of storage means. .

(G1 Effects of the Invention) According to the present invention, as described in 2, the connection with an electronic computer,
A screen buffer that is controlled by instructions from the computer and stores code information such as characters and routing input from the computer is prepared for each line, and the code information in the screen buffer is converted into image information. In a communication control device that has a line transmission function, by specifying an arbitrary row and column of the screen buffer from a computer, an image area is set in an arbitrary area of the screen buffer, and the code in the screen buffer is set as an image area. The information is converted into image information G for each row and each column, and during the processing, when the row or column corresponds to the image area, or all the code information in one row is converted into image information Q. After that, by storing the image information from the computer in the image buffer,
The configuration is such that code information and image information from a computer are combined and sent to the line.

Therefore, code information and image information can be easily combined within the communication control device and sent to the line. Since the communication control device can perform the synthesis, information such as characters and image information such as figures can be synthesized without increasing the memory load of the computer.

[Brief explanation of the drawing]

FIG. 1 is a diagram illustrating a document mixed with figures, FIG. 2 is a block diagram illustrating a communication control device according to the present invention, FIG. 3 is a diagram illustrating the storage state of the screen buffer, and FIG. 4 is a diagram illustrating the storage state of the screen buffer. FIG. 3 is a diagram illustrating one row and the storage state of an image buffer. In the figure, 1 is a computer, 2 is a communication control device, 3 is a central processing unit, 4 is a main storage device, and 41 is a JI'S first
CG for standard characters, 42 is an image information storage unit, 5 is a magnetic disk device, 51 is a CG for JIS second level characters and user-defined characters, 6 is a screen knob, 7 is a CG for alphanumeric characters, 8 is an image 9 indicates the information/sofa, 9 indicates the second court sofa, and 10 indicates the second image buffer. Patent applicant: Fujitsu Ltd. Agent: Minoru Aoyagi, Figure 1, Figure 3

Claims (1)

[Claims] A screen buffer connected to an electronic computer, controlled by instructions from the computer, and storing code information such as characters and symbols inputted from the computer is prepared for each line, and the screen buffer In a communication control device that has a function of converting code information into image information and sending it to a line, by specifying an arbitrary row and column of the screen buffer from a computer, an image can be transferred to an arbitrary area of the screen buffer. Sets the area, converts the code information in the screen buffer into image information row by row and column by column, and during that process, when the row or column corresponds to the image area, or the code in one row After converting all the information into image information, by storing the image information from the computer in the image buffer,
A communication control device characterized by combining code information and image information from a computer and transmitting the result to a line.