JPS60113283A - Character pattern 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 The present invention relates to a character pattern generating device used for displaying or printing characters and symbols including Chinese characters (hereinafter simply referred to as character patterns).

A character pattern generator stores a character pattern defined by turning on and off dots on a dot matrix of a certain size in a storage device, and reads out a character pattern corresponding to a specified character code from the storage device. A method is often used in which the pattern is stored in a pattern memory. In this type of character pattern generation device, any pattern that can be expressed in a dot matrix can be defined and stored in advance to generate a pattern at high speed. However, the kanji used in Japan have complex character shapes, so each character requires a dot matrix of 918 x 18 or more, and since there are many types of characters, a large memory capacity is required. When dealing with decorative character patterns such as hollow characters, which represent characters on tubes with line edges, it is even more important to define and memorize them in a dot matrix in advance, in addition to memorizing regular character patterns. This method has the drawback of requiring a large-capacity storage device, and also requires a great deal of effort to design and create a character pattern of hollow characters corresponding to each character in advance.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a complete character pattern generation device that eliminates the need to create and store character patterns for hollow characters in advance.

According to the present invention, there is provided a character Bakun generator that generates a character pattern defined by a dot matrix of a constant size corresponding to a character code; a pattern memory s that temporarily stores the character pattern; and a pattern memory s that temporarily stores the character pattern. Enlarging the character pattern on the pattern memory. The present invention further comprises: an enlarging section for creating a boundary dot from the enlarged character pattern on the background memory; and a control section for controlling the operation of the device.
A characteristic character pattern generator is obtained.

Hereinafter, the present invention will be explained with reference to drawings showing embodiments.

FIG. 1 shows one embodiment of the character pattern generating device of the present invention f! I
It is a block diagram shown in FIG. In the figure, reference numeral 1 denotes a character pattern generator (hereinafter referred to as CG) which, when a character code of a character to be generated is input from the outside, outputs a corresponding character pattern P1 in the form of a dot matrix. 2 is a pattern memory, which stores the character pattern p output by CG1.
, j', and the enlarging unit 3. The character patterns obtained as a result of each process by the boundary creation unit 4 are also temporarily stored. 3 is an enlarged section, and pattern memory 2
The character patterns p and j' are inputted, a character pattern Tkl enlarged twice vertically and horizontally is created and outputted to the pattern memory 2. 4 is a boundary creation unit which inputs the enlarged pattern Tkle from the pattern memory 2 and creates the hollow character pattern Q.
kt'i: Create and output to pattern memory 2. Reference numeral 5 denotes a control unit, which inputs a conversion code from the outside to control the operation of the apparatus.

Figure 2 ial, (bl, tc+ are diagrams schematically showing examples of character patterns. Figure 2 ial shows the pattern of the character "self" output from CGI. Figure 2 (b
) indicates a character pattern that has been enlarged twice vertically and horizontally by the enlarging unit 3. FIG. 2(C) shows a hollow character pattern created by the boundary creation section 4.

Fig. 3 fil, (bl is a diagram for explaining the operation of the boundary creation section. Fig. 3 ta+ is composed of a point of interest Y and eight junction points Y (1+Y1, Y2, ..., Y7). Figure 3(b) shows a part of the character pattern.

This shows the serif part in the Mincho typeface.The diagonally shaded part in the figure shows all dots on, that is, all black dots, and is logically represented by a value of 1, and the next blank part is a dot +7).
is off, that is, indicates a white dot, and is logically represented by a value of 0. The part indicated by OtaX is a white dot before boundary creation processing.
It shows the black dot boundary dots created as boundaries of character patterns after boundary creation processing.

Fig. 1, Fig. 2 (31, (bl, (C1, Fig. 3)
The operation of the character pattern generator of the present invention will be explained using al and fbl. For example, when an external instruction is given to generate the character pattern "self", the CGI inputs the character code corresponding to "self" and generates the dot matrix character pattern p1j(i = 1
．． 2.3°..., m, j = 1.2,3. ...
, n) is output to the turn memory 2. In the figure, m=2
4. When n=24, gold is shown. If the instruction from the outside is not a hollow character, the control unit 5 is instructed by the conversion code not to perform the entire operation of generating a hollow character pattern, and therefore the CGI output patterns P and j stored in the pattern memory 2 are This is the final output of this device. on the other hand,
When an external instruction is given to generate a hollow character pattern using the conversion code, the control section 5 causes the enlarging section 3 to perform a pattern enlarging operation. The enlarging unit 3 inputs the character bar 2-PBk into the pattern memory 2, creates a pattern Tk enlarged by M times vertically and N times horizontally according to equation (1), and stores the result in the pattern memory 2 again.

Tk1=P ljb k= 1.2.3. -, M II
m%f), = 1.2.3. −, N ・ni = [(
k+M-t)/to〇, j=[(l+N-t)/N]
(1) In equation (1), M and N are positive integers representing the vertical and horizontal magnification rates, respectively, and the symbols [ ] indicate integerization by truncation. Next, the control unit 5 activates the boundary creation unit 4. The boundary creation unit 4 performs a 3×3 dot logical mask process shown in FIG. 3 (al) on the character pattern Tkffi input from the pattern memory 2.
It logically determines whether or not that point is a boundary point, and creates a character pattern made of only boundary points by setting Y=1 if it is a boundary point, and Y=O if it is not a boundary point. do. The logic for determining the point of interest Y is expressed, for example, by equation (2).

Y@(Y o l'Y, tY 2-!Y, 1-Y4-
5.1- y, l Y7 ) (2) In equation (2), the symbols . and + indicate logical product and logical sum, respectively. The point indicated by the symbol X in Fig. 3 fbl is a boundary point created according to the logic of equation (2).
) shows that it is possible to create a hollow character pattern as shown in the figure below. Therefore, the boundary creation unit 4 may perform the operation shown in equation (3).

(k-1 or ni=M-m'J or [-1 or 1=N
・In case of n) Qkt-TJ・ (lc=2.3.・, M−m −1, (1=&3.・−
, N'n-1) Q+, t-'r,. l ” ('
l k +-I I ”-TN-111”'Tk e-
1+T k-11-1+゛'rk-, t'-Tk-■
+4 ”'Tk!, 4-1 Tk→le, +s)
-(3) Note that the enlarged section 3. The filling forming section 4 can be formed into a cylindrical piece using a microprocessor, and furthermore, since the processing is performed sequentially, the microprocessor can be shared. Also, the enlarged section 3. The boundary creation section 4 can also be easily constructed from simple hardware using a shift register or the like.

As described above, the character pattern generation device of the present invention does not require a new storage device for hollow character patterns in addition to the normally used character patterns, and it is not necessary to create hollow character turns in advance. Because there is no character pattern, it is particularly effective when used to generate character patterns such as complex characters with many types of characters.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the bungyo turn generator of the present invention. FIG. 2 is a schematic diagram showing an example of a character pattern. 3
Figures (al and bl are explanatory diagrams showing the operation of the boundary creation section. In the figure, 1... character pattern generator, 2...
...Pattern memory, 3...Enlarged section, 4
...Boundary creation section, 5...Control section/ft
are shown respectively.

Claims (1)

[Claims] a character pattern generator that generates a character pattern defined by a dot matrix of a constant size corresponding to a character code; a pattern memory that temporarily stores the character pattern; and an enlarger that enlarges the character pattern on the pattern memory; A character pattern comprising: a boundary creation unit that creates boundary dots from the enlarged character pattern on the pattern memory; and a control unit that controls operations of the character pattern generator, enlargement unit, and boundary creation unit. Generator.