JPS61189589A - Character pattern generation system - 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 Application of the Invention] The present invention relates to a character pattern method in a printer.
In particular, it relates to a black and white reversal character pattern system in which a black and white reversal character pattern is expressed by a combination K of dots.

[Background of the invention]

As an example of a black and white inverted character pattern, one character is arranged in 9 rows horizontally.
It is divided into a dot matrix of 7 vertical rows, and the presence or absence of dots is determined by a binary code "O" in memory.

The case where a character pattern is created by associating "1" with K will be explained.

FIG. 2 is a diagram showing the character "A" divided according to the above example. As shown in Figure 3, this character pattern is divided into 9 columns vertically and 7 rows horizontally, numbers are assigned to each row and column, and the presence or absence of dots is made to correspond to the memory rob and rlJ (the presence of dots is l".

K rtl is expressed as shown in the 4th column, 1st row, 6th column, 1st row, and 3rd column, 2nd row. Ru.

The character pattern rOJ expressed in binary code in this way,
If a logical negation is performed to invert the erlJ data, and a dot is present in correspondence with the negation result data "1", a black and white inverted character pattern as shown in FIG. 4 is created.

However, the pattern shown in Figure 4 is limited to the extent that it is possible to guess the alphabet rAJ;
It does not become an inverted character pattern of AJ.

In this way, generally the column data of the basic dot matrix is
If a character pattern is stored in which adjacent dots do not exist, and the data is logically negated, black and white inverted characters cannot be created.

Therefore, in the past, a character pattern generation method was adopted in which black and white inverted character patterns were separately stored in a storage device and used.

Therefore, as the number of stored characters increases, the storage capacity also increases, creating a cost problem.

[Purpose of the invention]

An object of the present invention is to eliminate the drawbacks of the above-mentioned prior art, and to provide a method for storing exclusive black and white inverted character patterns without storing them in a storage device.
To obtain a character pattern generation method capable of obtaining a black and white inverted character pattern.

[Summary of the invention]

To achieve this objective, the present invention provides a method for obtaining black and white inverted character patterns from basic character patterns expressed using a dot matrix.

The feature is that a polar bear inverted character pattern is created from a basic character pattern by performing logical sum and logical negation of adjacent column data of a basic character pattern composed of a dot matrix.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a dot matrix pattern obtained by inverting the rAJ dot matrix character pattern shown in FIG. 2 using the character no-turn generation method of the present invention.

The fifth step is to obtain the inverted pattern shown in FIG. 1 from the rAJ decomposition roJt rtJ pattern shown in FIG.
This will be explained using the rOJ and rlJ matrices shown in FIGS.

The character pattern generation method according to the present invention basically performs logical sum and logical negation of adjacent column data.

To explain this in more detail, in FIG. 3, all "O" data in each row are placed before the first column.
Assume a temporary column data consisting of O, 0, 0, OJ, and similarly assume a K "0" data column after the 9th column.

First, when calculating the logical sum of adjacent column data, the logical sum of tlP, the first column, and the previous temporary column is calculated. This is the wc1 column data in FIG. In this case, all my column data are "0", so the first row in Figure 5
The data in column 1 in the tjIL3 diagram is shown as is. Next, the logical sum of the first column and the second column in FIG. 3 is taken. This is the data in the second column in Figure 5. Similarly, the logical sum of the second and third columns in FIG. 3 is entered as the third column data in FIG. 5, and the third and fourth columns are entered as the fourth column data, and! The logical sum of the 9th column in FIG. 3 and the subsequent temporary column data is shown as data in the 10th column in FIG.

Then, the result obtained by logically negating this data and inverting it is 11.
This is Figure 6.

The inverted character pattern rAJ shown in FIG. 1 is a pattern in which the portion corresponding to "1" k in FIG. 6 is dotted.

According to this method, a perfectly formed inverted character pattern can be obtained even in the case of a character pattern in which there are no adjacent dots.

FIG. 7 shows a dot matrix pattern indicating BJK, FIG. 8 shows a dot matrix pattern indicating rHJ, and FIGS. 9 and 10 respectively show patterns created by the inverted character pattern generation method according to the present invention. That is, FIG. 9 shows the rBJ reversal pattern 7, and FIG. 10 shows the rHJ reversal pattern.

[Function and effect of the invention]

As explained above, according to the present invention, when creating a black and white inverted character based on a basic matrix character pattern, the logical OR of adjacent column data of the basic character pattern composed of a dot matrix is taken, and Since a black-and-white inverted character pattern is created by logically negating the data, there is no need to have a black-and-white inverted character pattern in the storage device, and the storage capacity can be reduced compared to conventional storage methods. It is possible to provide a character pattern generation method with excellent functionality without the drawbacks of the prior art.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a black and white inverted character pattern created by the character generation method according to the present invention, Fig. 2 is a state diagram of the basic pattern decomposed into dots, and Fig. 3 is the basic pattern divided into r
Fig. 4 is an explanatory drawing showing a black and white inverted character pattern created from the conventional basic pattern, and Fig. 5 is an explanatory drawing showing oJ and rxJ data. FIG. 6 is an explanatory diagram showing the logical sum data which is the g1 step, FIG. 6 is an explanatory diagram showing the logical negation data which is the second step, FIGS. 7 and 8 are explanatory diagrams showing other different basic patterns, Figures 9 and 10
The figure is an explanatory diagram showing the black and white inverted character pattern. Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5.1 Fig. 6 IPl-111- Fig. 7 Fig. 9 Decoy Fig. 8 Fig. 1O

Claims (1)

[Claims] When obtaining a black and white inverted character pattern from a basic character pattern expressed using a dot matrix, the character pattern is decomposed into predetermined rows and columns, and the first
Assuming a temporary column where all the rows before and after the last column are "0" data, we will calculate the corresponding rows of adjacent column data of the basic character pattern composed of a dot matrix including this temporary column. A character pattern generation method characterized in that a black and white inverted character pattern is created from a basic character pattern by logically ORing each data and then logically negating this data.