JPS62289886A - Conversion system for character generator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention [Summary] This is a conversion method for a character generator that stores the shapes of Japanese characters as a collection of many dots, which converts the code system of Japanese notation characters. If a change was necessary, this was done by scanning the character code with software and converting the code, but Japanese characters that store the character code and pattern data of the character whose shape is to be changed By providing a pattern generation means and an output control means for controlling output of one of the character generator and Japanese character pattern generation means as valid, changes in the Japanese character encoding system can be made more efficient. This makes it possible to process the situation and to easily deal with it.

[Industrial application field]

The present invention relates to a conversion method for a character generator that records the shapes of Japanese characters as a collection of many dots.

For example, in a Japanese information processing system, Japanese characters are made to maintain code compatibility in terms of their coding system and character shape according to the JIS code convention.

However, the reality of the JIS code rules for Japanese characters is that character codes are added/deleted/moved and character shapes are changed every few years depending on the social situation.

Furthermore, the current situation is that the character code systems differ slightly among manufacturers of equipment for Japanese information processing systems.

If a discrepancy between the character encoding systems as described above occurs,
Generally speaking, character code data is scanned and code converted using software-based processing, or the idea of adapting to a new or different code system is abandoned.

In such cases, it is necessary to easily adapt to new or different code systems in a simple way so that a wider range of people can use the device.

[Conventional technology]

FIG. 3 shows a block diagram illustrating a conventional example.

Reference numeral 1 shown in FIG. 3 is for printing/displaying Japanese characters on the screen of a printing device or display device, for example.
A character generator memory (corresponding to the character generator mentioned above, hereinafter referred to as CG-R Kano) consisting of a read-only memory (hereinafter referred to as ROM) that stores the shapes of Japanese characters as a collection of many dots. ), 2 is an address generator that generates an address for scanning the CG-ROMI from the row side or column side, and 3 is a predefined address generator for reading Japanese character data stored in the CG-ROMI. A host device (upper device) that issues a character code and issues commands to read a predetermined Japanese character data pattern, and reference numeral 6 denotes a terminal device equipped with a CG-ROMI and an address generator 2. show.

For example, when printing or displaying Japanese character data on a terminal device 6 corresponding to a printing device or a display device connected to a Japanese information processing system, an address is sent by command from the host device 3 of the Japanese information processing system. The generation unit 2 scans the CG-ROMI with the address or column address (■).

In addition, the host device 3 sends the character code ■ corresponding to the Japanese character data to the CG-ROMI, accesses the location specified by the address generator 2, continuously outputs the Japanese character data ■, and prints the Japanese character code ■. Print or display word character data ■.

Japanese character data as mentioned above is usually systematized and standardized using JIS codes, but it is generally reviewed in response to changes in the way Japanese is used.

Therefore, incompatibility may occur between the character code/glyph system of the CG-ROMI built into the terminal device 6 and the character code/glyph system of the Japanese information processing system to which the terminal device 6 is connected. There is.

In such a case, the character code/character shape system on the terminal device 6 side must be converted to match the character code/character shape system on the Japanese information processing system side.

Conventionally, as a method for this, for example, the host device 3 once converts the character code through software-based processing to make it compatible.

For example, a conventional character code stored in a predetermined area of the storage part of the host device 3 is converted by software-based processing and stored in another area, and the converted character code is generated from the area where it is stored. Conversion character code ■
CG-ROMI is accessed by.

In addition, if character shapes are added or changed due to a review of Japanese character data, for example, a memory for storing user-defined character data is provided in the host device 3, and the added or changed portions of these character glyphs are stored as user-defined characters. Countermeasures have been taken, such as treating it as data.

[The problem that the invention is trying to solve]

As mentioned above, (1) For example, if the terminal device 6 incorporating a CG-ROMI made based on the JIS code standard is
When it becomes necessary to adapt to a new code system due to a review/change of the IS code standard, or (2) when a code system/character shape that is partially different from the code system/character shape of the CG-ROMI built into the terminal device 6 is used. Japanese information processing system (
For example, when attempting to connect to a system made by a different manufacturer, this has conventionally been handled by code system/font conversion using software, as described above.

However, since such conversions are processed by software, there is a problem that the processing power of the system is significantly reduced.Furthermore, when the amount of conversion processing is enormous, it is conventional to convert different encoding systems/character shapes. In some cases, the process was abandoned.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention includes the following means.

FIG. 1 shows a block diagram illustrating the invention in detail.

The principle block diagram of FIG. 1 is composed of the host device 3 described in FIG. 3 and a terminal device 10 having the following functional blocks.

The terminal device 10 of the present invention is a CG-ROM explained in FIG.
1. Address generation section 2, which stores Japanese character pattern data, and addresses generation section 2.
Japanese character pattern generating means (Japanese character pattern generating section) 4 that generates predetermined Japanese character pattern data ■ corresponding to the address ■ from the host device 3 and the Japanese character code ■ from the host device 3; Output for inputting the row or column scan data ■ in the above and the Japanese character pattern data ■ from the Japanese character Bakun generation means (Japanese character pattern generation unit) 4, and determining one of them as valid. It is configured to include a control means (output control section) 5.

[Effect]

The Japanese character encoding system and Japanese character shapes are CG-
If there is incompatibility between the built-in ROMI and the Japanese information processing system, for example, when printing or displaying Japanese characters on a printing device, display device, etc. in accordance with a command from the host device 3 of the Japanese 1n information processing system, The character code ■ and character glyph shape that require the conversion process are stored in the Japanese character pattern generation means (Japanese character pattern generation unit) 4, and the CG-ROMI from the address generation unit 2 and the host device 3 is stored. CG- with address ■ and character code ■
The ROMI and Japanese character pattern generation means (Japanese character pattern generation unit) 4 are accessed.

As a result, the output control means (output control section) 5 determines the respective character data ■, ■ output from the CG-Rf) Ml and the Japanese character pattern generation means (Japanese character pattern generation section) 4, and By configuring one of them to be valid and sending it to a printing device, display device, etc., it becomes possible to quickly and easily respond to changes in the Japanese character encoding system and Japanese character shapes.

〔Example〕

The gist of the present invention will be specifically explained below with reference to an embodiment shown in FIG.

FIG. 2 shows a block diagram illustrating the invention in detail. Note that the same reference numerals refer to the same objects throughout the plan.

The Japanese character pattern generation unit 4 of this embodiment is
A conversion code address memory 41 that generates a conversion code address ■ for the conversion character data memory 42 using a code address ■ according to the new code system from 3, and a conversion character data memory 42 that stores character codes and character glyphs to be converted. Be equipped.

Similarly, the output control unit 5 of this embodiment includes a gate control signal generation circuit 51 that generates a gate control signal (■) for the gate circuit 52 using a code address (■) based on a new code system from the host device 3, and a gate control signal generation circuit (2) that generates a gate control signal (■) from the CG-ROMI The gate circuit 52 determines that one of the Japanese character pattern data (2) generated from the converted character data memory 42 and the Japanese character pattern data (2) generated from the converted character data memory 42 is valid and outputs it.

It is assumed that the character code address (2) for CG-ROMI is given by the new code system from the host device 3.

If the character code address ■ according to this new code system differs from that corresponding to the original CG-ROMI, the conversion code address memory 41
It is converted into a conversion code address ■ for 2 and sent out.

Accessed by these character code address ■, conversion code address ■, and memory address ■ from address generation section 2, CG-ROMI and conversion character data memory 4
Japanese character pattern data from 2 ■.

(2) is sent to the gate circuit 52.

The gate circuit 52 is Japanese character pattern data ■.

The selection of (2) is determined by the gate control signal (2) which is output based on the data stored in the gate control signal generation circuit 51, and the Japanese character pattern data (2) of the selected one is determined.
, ■ are extracted as Japanese character pattern data ■.

Note that the gate control signal generation circuit 51 stores in advance a value that determines the selection of Japanese character pattern data ■ and ■, and the gate circuit 52 will be controlled by the gate control signal ■ that will be output from now on. .

By the method described above, the character encoding system of CG-ROMI/
To easily and quickly follow incompatible character code systems/character shapes with different character shapes.

[Effects of the Invention] According to the present invention as described above, processing of incompatible character code systems/character shapes can be quickly followed for a CG-ROM that incorporates predefined character code systems/character shapes. Moreover, it has the effect of being easy to perform.

[Brief explanation of drawings]

FIG. 1 is a block diagram explaining the present invention in detail, FIG. 2 is a block diagram explaining the present invention in detail, and FIG. 3 is a block diagram explaining a conventional example. In the figure, 1 is the CG-R leaf, 2 is the address generator,
3 is a host device (upper device), 4 is a Japanese character pattern generation unit (Japanese character pattern generation means), 5 is an output control unit (output control means), 6.10 is a terminal device, 41 is a conversion code address memory , 42 is a converted character data memory, 51 is a gate control signal generation circuit, and 52 is a gate circuit. 7>Kairo's 7 principles are the 2 most famous ones, Paguchi and Sono 0. 1
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Claims (1)

[Scope of Claims] A character generator (1) that stores predefined Japanese character shapes as a collection of many dots is provided, and the character generator (1) stores the shapes of Japanese characters defined in advance as a collection of many dots. A device having means for outputting character data read out by scanning rows or columns of the character generator (1), which stores Japanese character pattern data and has an address generator (1).
Japanese character pattern generating means (4) for generating and outputting predetermined Japanese character pattern data corresponding to the row or column address ([1]) from 2) and the character code ([2]) from the host device; , output control means for inputting the row or column scan data in the character generator (1) and the Japanese character pattern data from the Japanese character pattern generation means (4), and determining one of them as valid; (5), and when the character encoding system of the Japanese character stored in the character generator (1) is changed, the pattern data of the Japanese character to be changed is changed to the character code system of the Japanese character stored in the character generator (1). The character generator () is stored in the pattern generating means (4) and corresponds to the address ([1]) from the address generator (2) and the character code ([2]) from the host device. 1)
and row or column scan data from the Japanese character pattern generating means (4) corresponding to the same address ([1]) and character code ([2]) as the character generator (1). A conversion method for a character generator, characterized in that the output control means (5) determines one of the words and character pattern data as valid and outputs it.