JPS62127889A - Storage of character - 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 [Field of Industrial Application] The present invention relates to a method for storing characters in a pattern memory of a character generator.

[Conventional technology]

FIGS. 5(a) and 5(b) are schematic diagrams explaining the conventional character storage method, and in FIG. 5(a), 31.3
2 is character data of alphabets "H" and "I", which are stored in a pattern memory of a character generator (not shown). In FIG. 3(b), numeral 33 indicates stored character data, which is stored in the memory within the character generator, including the blank portions used when printing the character data 31 and 32 shown in FIG. 4(a).

[Problem that the invention seeks to solve]

This has resulted in the problem that the memory capacity of the character generator becomes extremely large, making the device expensive.

The present invention was made to solve the above problems, and an object of the present invention is to provide a character storage method that allows character data to be stored in a small memory space.

[Means for solving problems]

The character storage method according to the present invention stores the characters of each character densely in the pattern memory by storing blank information to be formed before and after the character of each character separately from the data representing the character. .

[Effect]

In this invention, each character is stored densely in the pattern memory by storing blank information to be formed before and after each character separately from data representing the character.

〔Example〕

FIG. 1 is a block diagram illustrating a method of storing character data according to an embodiment of the present invention. Reference numeral 1 denotes an interface section for transmitting and receiving character code data from an external device (not shown). Reference numeral 2 denotes a control unit that interprets the character code sent through the interface unit 1 and creates the first address of the character generator unit 4 in which the recorded character pattern specified by the character code is stored. Reference numeral 3 denotes a motion storage section, which includes a start address table 3a that stores the start addresses of characters generated by the character generator section 4.
have. Further, the action storage section 3 stores the total number of columns including the characters to be generated. A recording section 5 prints characters according to the character pattern stored in the pattern memory 4a of the character generator section 4. In addition to the area for storing characters, the pattern memory 4a has an area for storing blank information, which will be described later.

Next, the operation shown in FIG. 1 will be explained with reference to FIGS. 2 to 4.

FIG. 2 is a diagram illustrating the structure of character data stored in the pattern memory 4a shown in FIG.
．． 12 is character data, the number of dots in the vertical direction is
For example, it is composed of 16 dots. 11a and 12a are start addresses, and these start addresses 11a and 12a are stored in the operation storage section 3 shown in FIG. In addition, the pattern memory 4 specified by the start address lla, 12a
For example, blank information 11b consisting of 1 byte is stored in the first column of a, and in the case of character data 11, the character is rHJ and the number of blank columns to be added before and after character data 11. , that is, the blank information 11b is 4
Bit by bit rooolJ, r.

001" are added to each. Similarly, in the case of character data 12, the character is rHJ, and the number of columns of blank space to be added before the character data 12, that is, the blank information 12b is added in 4-bit increments of ``ROOL'' and ROLOOJ.

FIG. 3 is a diagram illustrating the character pattern structure that generated the character data 11°12 shown in FIG.
22 is a character pattern generated by the character generator section 4 based on the blank information 11b or 12b.

FIG. 4 is a flowchart illustrating the character data generation operation according to the present invention. In addition, (1) to (8)
indicates each step.

First, when a recording character instruction is sent, the control section 1 accesses the start address table 3a in the operation storage section 3 and reads out the start address Ila of the recording character.
Read out all columns including blank parts of recorded characters (1) 0. Next, access the pattern memory 4a based on the start address 11a.

For example, read the blank information 11b and 12b (1 byte) 2), send the blank data to be added to the beginning of the recorded character to the recording section 5 (3), then read the character data 11 and 12 from the pattern memory 4d. 4) and sends the character data to the recording unit 5 using DH.
Determine whether the transmission of a, 12a is completed (5)
. If this judgment is NO, return to step (4) and continue reading the character data 11a, 12a; if YES, blank data to be added after the character data lla, 12a (lower 4 blank information (indicated by bits) is sent to the recording unit 5 (6).

In this way, by adding information about the blank areas formed before and after the recorded characters, that is, blank information, to one byte of the first column of the pattern memory 4a of the character generator section 4, only the character data excluding the blank areas can be patterned. By simply storing the information in the memory 4a, it is possible to print the same recorded characters as conventional ones, such as character patterns 21 and 22 (shown in FIG. 3) based on the character data 11a and 12a.

In the above embodiment, a case has been described in which blank information of a recorded character is added to one byte of the first column of character data, but for example, when character data is composed of 16 dots in the vertical direction.

The blank information may be 2 bytes.

Furthermore, as shown in FIG. 5(b), the character data 31
, 32 are stored, if the configuration is configured so that the amount of blank space to be deleted when printing in a blank column can be specified, the amount of blank space can be adjusted when printing character data 31, 32. It goes without saying that it can be done.

〔Effect of the invention〕

As explained above, the present invention stores the blank information to be formed before and after the characters of each letter separately from the data representing the characters, so that the characters of each letter can be stored densely in the pattern memory. Since it is possible to store all conventional character data in a small capacity, it has the excellent advantage of reducing the cost of character data.

[Brief explanation of drawings]

1 is a block diagram illustrating a method of storing character data according to an embodiment of the present invention; FIG. 2 is a diagram illustrating the structure of character data stored in the pattern memory shown in FIG. 1; The figure is a diagram explaining the character pattern structure that generated the character data shown in Figure 2, Figure 4 is a flowchart explaining the character data generation operation according to the present invention, and Figures 5 (a) and (b) are conventional FIG. 2 is a schematic diagram illustrating a method of storing character data. In the figure, 1 is an interface section, 2 is a control section, 3 is an operation storage section, 3a is a leading address table, 4 is a character generator section, 4a is a pattern memory, and 5 is a recording section. Fig. 1 3a, start address 7 fushi 4a, 0 turn memory Fig. 2 Fig. 3 Fig. 4 Fig. 5

Claims (1)

[Claims] A method for storing character data, characterized in that characters of a character are densely stored in a pattern memory by storing blank information for forming before and after each character separately from data representing the character.