JPH04111115A - Character processor - Google Patents

Abstract

PURPOSE:To produce all ruled line element piece patterns without storing individually these patterns by constituting the processor of a pattern memory, an individual information memory, an individual information reading means, and a pattern conversion means. CONSTITUTION:A CPU performs the arithmetic and logical decisions, etc., for processing of characters and controls the component elements connected to an address bus AB, a control bus CB, and a data bus DB via these buses. When the character information is inputted, an individual information reading means (CPU) reads the desired individual information out of an individual information memory based on the input character information. A pattern conversion means (CPU) analyzes the read individual information and reads the corresponding ruled line element piece pattern out of a pattern memory to convert this pattern into a prescribed one based on the individual information. Then a desired ruled line element piece pattern is obtained from a basic ruled line element piece pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a character processing device capable of printing out desired table lines based on pre-stored ruled line segment patterns.

[Prior Art 1] Fig. 6 is a diagram illustrating the configuration of a ruled line element pattern in a conventional character processing device, for example, JIS C-X0208.
Corresponds to Attached Table 1.

FIG. 7 is a schematic diagram showing an example of frame creation processing using ruled line segment patterns in a conventional character processing device.

In the figure, a3 indicates the contents of the document memory being edited,
Character/ruled line segment patterns are stored in one-to-one correspondence with character/ruled line segment codes.

C corresponds to a state in which the character/rule segment pattern read from the document memory is set in the display storage area (VRAM).

[Problem to be solved by the invention] However, the area of the storage medium storing the pattern is required to be equal to the size of one character of the character/ruled line element pattern multiplied by the number of sizes, and the number of dots making up the pattern is large. In response to the increase in image quality (higher definition) and the addition of patterns with different numbers of constituent dots, it was necessary to memorize all the patterns.

Specifically, for example, the number of pattern constituent dots of the 32 kinds of character/ruled line segments shown in FIG. 6 is 16 vertically and 16 horizontally (hereinafter 16
(shown as 6x16) is 1024 bytes (assuming 1 byte is 8 bits), 24x24 dots is 2304 bytes, and the total of both is 3328 bytes. There was a problem in that if a 48×48 dot pattern was added to this, an additional 9216 bytes would be required.

This invention was made in order to solve the above-mentioned problems, and by generating each desired character/rule segment pattern while managing the basic character/rule segment pattern and its individual information in advance. To provide an inexpensive character processing device capable of generating each desired character/rule line element pattern by simply storing a small amount of basic character/rule line element patterns in advance.

[Means for Solving the Problems] A character processing device according to the present invention includes a pattern memory that stores basic ruled line segment patterns, an individual information memory that stores predetermined individual information corresponding to the basic ruled line segment patterns,
an individual information reading means for reading desired individual information from the individual information memory based on the input character information; and an individual information reading means that analyzes the individual information read by the individual information reading means and extracts a corresponding basic ruled line segment pattern from the pattern memory. A pattern conversion means is provided for reading and converting the basic ruled line segment pattern into a predetermined ruled line segment pattern according to individual information.

[Operation] In this invention, when character information is input, the individual information reading means reads desired individual information from the individual information memory based on the input character information, and further the pattern converting means reads out the individual information read out. Analyze and read the corresponding basic ruled line segment pattern from the pattern memory, and if necessary, convert the read basic ruled line segment pattern into a predetermined ruled line segment pattern according to the individual information, and convert the basic ruled line segment pattern into a desired line segment pattern. It is possible to generate ruled line segment patterns.

[Embodiment] FIG. 1 is a block diagram illustrating the configuration of a character processing device showing an embodiment of the present invention. The CPU is a microprocessor that performs calculations, logical judgments, etc. for character processing, and Each component connected to the bus AB, control bus CB, and data bus DB is controlled via the bus AB, control bus CB, and data bus DB. In addition, the microprocessor CPU determines the position and movement direction of the cursor in the document being edited, controls the drive of the printing device, etc. based on the contents of the RAM, etc., which will be described later.
will do.

The address bus AB transfers an address signal indicating a component to be controlled by an address signal indicating a component to be controlled by the microprocessor CPU. The control bus CB transfers and supplies control signals for the components of the microprocessor CPU. The data bus DB transfers data between each component device.

The ROM is a fixed memory that stores control procedures and individual pattern information by the microprocessor CPU.

The RAM is a writable random access memory having a configuration of 1 word and 16 bits, and is used for temporary storage of various data from each component. Random access memory R
AM includes a work area BtJF1.M which stores read steps and other individual information from the fixed memory ROM. A work area BUF2 that stores basic patterns read from a character generator CG to be described later and patterns obtained by rotating and mirroring the basic patterns. It has BUF3.

KB is a keyboard, and document information such as input characters and ruled line segments is stored in a document buffer memory DBUF.

CR is the cursor register, microprocessor CPU
allows you to read and write its contents. CRTC is CRT
The controller displays a cursor at a corresponding position on the display device CRT based on the contents of the cursor register CR.

During document editing, the display device CRT displays the contents stored in the document buffer memory DBUF on the CRT controller CRT.
Displayed under the control of C.

The CRT controller CRTC has a cursor register CR.
Y and the contents stored in the display pattern buffer VRAM are displayed on the display device CRT.

The character generator CG generates characters of basic patterns of ruled line segments such as characters, symbols, and cursors to be displayed on the display device CRT.

Incidentally, in response to various inputs from the keyboard KB, included signals are notified to the microprocessor CPU, and the microprocessor CPU reads out various control signals stored in the fixed memory ROM and notifies each component of the corresponding control signals. However, each part is controlled comprehensively.

Further, the rotation/mirror processing performed on the work area BUF is a basic function in a character processing device, and is performed by known image processing, so a detailed description thereof will be omitted.

FIG. 2 is a diagram showing the main parts of the individual information stored in the fixed memory ROM shown in FIG. 1. In this embodiment, the individual ruled line segment code consists of 2 bytes and the mirroring information consists of 1 byte The storage capacity is 96 bytes per ruled line element, and 192 bytes in total.

FIG. 3 is a schematic diagram illustrating character pattern generation processing in the character processing device according to the present invention.

In this figure, al is a storage medium for individual pattern information (
ROM), a2 represents the basic pattern 1 medium (CG). Further, bl is an area for reading individual information of each ruled line segment (corresponding to work area BUF1), b2. b
3 represents an area (corresponding to work area BUF2.3) for rotating and mirroring the read basic pattern.

C is an area corresponding to a display pattern buffer VRAM that stores contents to be displayed on the display device CRT shown in FIG.

In the character processing device configured as described above, when character information is input, the individual information reading means (microprocessor CPU in this embodiment) reads desired individual information from the individual information memory based on the input character information. Compare the readings,
Furthermore, the pattern conversion means (microprocessor CPU in this embodiment) analyzes the read individual information and reads out the corresponding basic ruled line segment pattern from the pattern memory, and converts the read basic ruled line segment pattern into the individual information ( Individual code, basic code, rotation amount/mirror image specification, etc.)
It is possible to generate a desired ruled line segment pattern from the basic ruled line segment pattern by converting it into a predetermined ruled line segment pattern according to the basic ruled line segment pattern.

Specifically, FIG. 3 corresponds to the case where the upper right corner pattern of a thick line segment is displayed, and individual pattern information corresponding to the hexadecimal code (2824) of the ruled line segment on the document memory is displayed from the fixed memory ROM for working purposes. Read out the pattern of the basic ruled line element code (2823) that is visible there to the area BUFI from the character generator CG to the work area B.
Load onto IJF2. Furthermore, rotation and mirroring processing is performed on the work area BUFB according to the individual pattern information,
The created pattern is stored on random access memory RAM.

FIG. 4 is a flowchart showing an example of a pattern generation processing procedure in the character processing device according to the present invention. In addition,
(1) to (5) indicate each step.

First, the code of a necessary ruled line segment is read from the document buffer memory DBUF (1). Read the individual information of the ruled line segment from the fixed memory ROM to the work area BUFI (2) Next, read the code pattern of the basic pattern in the individual information of the work area BUFI to the character generator C
Read from G into the work area BUF2 (3) Next, perform rotation or mirroring processing on the pattern of the work area BUF2 according to the individual information 4) and store it in the work area BUF3. Next, work area BUF
The display pattern No. 3 is transferred to the display pattern buffer VRAM (5), and the process ends.

In the above embodiment, the type of ruled line element is 3 in JIS.
We have explained the case where there are two types of line segments, thin lines and thick lines, but it is also possible to increase the number of line segments by adding double lines to the line types or realizing other possible line segments. By executing the pattern generation process described above, a desired pattern can be generated with a smaller memory capacity.

FIGS. 5(a) and 5(b) are diagrams illustrating the configuration of ruled line segment patterns in a character processing device showing another embodiment of the present invention, in which 51 is a combination ruled line segment pattern; 51a and a thin wire piece 51b, which is stored in a fixed memory ROM. As a result, the combined ruled line segment patterns 61 to 64 of the conventional configuration can be generated using the combined ruled line segment pattern 51.

Furthermore, 71 is a combined ruled line segment pattern, which is composed of a thick ruled line segment 71a, a thin line segment 71b, and a double line segment 71c, and is stored in a fixed memory ROM. As a result, the combined ruled line segment patterns 81 to 88 of the conventional configuration
can be generated using the above-mentioned combined ruled line segment pattern 51.

As a result, in the same figure (a), the fixed memory ROM
The storage area (including individual information) of the fixed memory R can be reduced to 1/4 compared to the conventional one.
OM storage area (including individual information) is reduced to 1/2 compared to conventional
8.

Therefore, for example, even if 192 bytes are required for the individual information as in the above embodiment, only 11 types of basic patterns are required, and the memory capacity required to store the basic pattern when the number of constituent dots is 16x16 is 352 bytes. number is 2
The storage capacity required for basic pattern storage in the case of 4×24 is 792 bytes, which is 1144 bytes for both. Furthermore,
Even if the number of constituent dots is 48×48, the storage capacity required to store the basic pattern is only 3168 bytes.

[Effects of the Invention] As explained above, the present invention includes a pattern memory for storing basic ruled line segment patterns, an individual information memory for storing predetermined individual information corresponding to the basic ruled line segment patterns, and an input memory. an individual information reading means for reading desired individual information from the individual information memory based on character information; and an individual information reading means for reading out the corresponding basic ruled line segment pattern from the pattern memory by analyzing the individual information read by the individual information reading means. Since a pattern conversion means is provided for converting a basic ruled line segment pattern into a predetermined ruled line segment pattern according to individual information, it is not necessary to individually store all the ruled line segment patterns as in the past. It becomes possible to generate all ruled line segment patterns simply by storing the patterns.

Therefore, even if the types of ruled line segment patterns or dot configurations increase, it is no longer necessary to store all the ruled line segment patterns, and the storage capacity for storing ruled line segment patterns can be significantly reduced compared to the past. , the memory cost can be significantly reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating the configuration of a character processing device showing an embodiment of the present invention, FIG. 2 is a diagram showing main parts of individual information stored in the fixed memory shown in FIG. 3 is a schematic diagram illustrating the character pattern generation process in the character processing device according to the present invention, FIG. 4 is a flowchart showing an example of the pattern generation process procedure in the character processing device according to the present invention, and FIG. 5(a), (b) is a diagram explaining the configuration of a ruled line segment pattern in a character processing device showing another embodiment of the present invention, FIG. 6 is a diagram explaining the configuration of a ruled line segment pattern in a conventional character processing device, and FIG. The figure is a schematic diagram showing an example of frame creation processing using ruled line segment patterns in a conventional character processing device. In the figure, CPU is a microprocessor, RAM is random access memory, ROM is fixed memory, and VRAM is a display pattern buffer. Figure Figure

Claims (1)

[Claims] A pattern memory that stores a basic ruled line segment pattern, an individual information memory that stores predetermined individual information corresponding to the basic ruled line segment pattern, and desired individual information from the individual information memory based on input character information. and an individual information reading means for reading out the individual information, and reading out the corresponding basic ruled line element pattern from the pattern memory by analyzing the individual information read by the individual information reading means, and reading out the read basic ruled line element pattern in accordance with the individual information. 1. A character processing device comprising: a pattern conversion means for converting into a ruled line segment pattern.