JPS62242548A - Recording method of character pattern - Google Patents

Abstract

PURPOSE:To record various full-faced character, outline characters, etc. by means of a small quantity of font memories by providing a basic pattern and more than one type of shell patterns sequentially surrounding the basic pattern for the same character then combining said patterns logically and synthesizing a specific character pattern. CONSTITUTION:A basic pattern 1 is designed such that it is surrounded by other shell patterns 8, 9 without fail and when there are more than two types of shell patterns 8, 9, one pattern surrounds the other without fail. When the basic pattern and an outline character pattern are inputted from two sets of font memories to a logic circuit 4 so as to perform a processing based upon a command '01', the basic pattern 1 is outputted from said logic circuit. While when the processing is performed based upon a command '11', an outline character pattern 2 is outputted. Furthermore, when the processing is performed based upon a logic of (not 00)AND(not 11) or '10'OR'01', a character pattern 11 corresponding to the inside portion of the shell pattern 2 is synthesized while when the processing is controlled based upon the logic (not 00), a character pattern 12 corresponding to a full-faced hypen is synthesized.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a method for recording various character patterns on a recording member by means of a dot matrix.

``Prior Art'' A large number of character recording devices connected to computers, facsimile machines, etc., employ methods of obtaining character patterns using so-called dot matrices, such as wire dot printers and thermal head printers. ing.

These devices use 5X7 for letters and numbers, for example.
A dot matrix structure is used, and character patterns for kanji and hiragana are created using a 12x12 dot matrix structure, and these are recorded.

On the other hand, character patterns created in this manner are also enlarged, reduced, or processed into character patterns with certain deformations.

Typically, basic character patterns are stored in a storage element called font memory. Here, for example, when recording so-called thick characters, the character pattern of a specific character is read out from this font memory and arithmetic processing is performed on it according to a certain rule.

Similarly, a so-called outline character pattern, which represents only the outline of a character, can also be created by arithmetic processing. This technique is described in Japanese Patent Laid-Open No. 59-2171 or Japanese Patent Laid-Open No. 59-5388.

``Problem to be solved by the invention'' However, when a certain calculation process is applied to the character pattern read from the font memory, the time required for the calculation process is relatively long, and the recording speed is sacrificed to some extent. I have no choice but to do it.

Furthermore, if all character patterns are obtained through uniform arithmetic processing, it is not necessarily possible to obtain character patterns with the desired optimal design.

On the other hand, if you prepare a font memory that stores character patterns of various fonts, such as bold characters and outline characters, in addition to the font memory that stores basic character patterns, the processing speed will be improved. , it is possible to record character patterns with appropriate designs set in advance.

However, this requires a large amount of font memory, which increases the size of the circuit and increases costs.

The present invention has been made in view of the above points, and an object of the present invention is to provide a character pattern recording method that can record a wide variety of thick characters, outline characters, etc. using a relatively small amount of font memory. It is something to do.

"Means for Solving the Problems" The character pattern recording method of the present invention, when recording a character pattern on a recording member using a dot matrix, for the same character, a basic pattern and a type of pattern that sequentially surrounds the basic pattern. The present invention is characterized in that a predetermined character pattern is synthesized from a logical combination of the above-mentioned shell pattern and the above-mentioned shell pattern and is recorded.

"Operation" In this method, for example, as shown in Figure 1, basic pattern 1 and outline character pattern 2 are output from two sets of font memories.
If necessary, a so-called halftone pattern 3 created by a microprocessor (not shown) or the like is simultaneously used.

Then, these are input into one logic circuit 4.

In this logic circuit 4, there are three types of patterns l~
Regarding 3, logical products or logical sums are performed in various combinations. The combination to be processed depends on the instruction content of the control signal 5 input to this logic circuit.

As a result, as shown in the figure, for example, a character pattern 6 ("mountain") in which a hatching pattern 3 is included in an outline character pattern 2 is synthesized. This is sent to a recording unit such as a printer (not shown).

In this example, two sets of font memories are used,
For example, about seven types of character patterns can be obtained. This is shown in FIG. 6, and the details will be explained later.

"Example" The relationship between the basic pattern 1, the shell pattern, and the outline character pattern 2 will be explained with reference to FIG.

According to the present invention, as shown in the figure, the basic pattern l is always surrounded by other shell patterns 8.9, and when there are two or more types of shell patterns 8.9, one always surrounds the other. It is designed to surround.

In this figure, a shell pattern 8 surrounds the basic pattern 1, and a shell pattern 9 surrounds the outside thereof.

First, basic pattern 1 is stored in the first font memory. On the other hand, the second font memory stores an outline character pattern 2 corresponding to the area sandwiched between the inner shell pattern 8 and the outer shell pattern 9.

A specific example of the operation of the logic circuit (FIG. 1) that processes such a signal will be explained using FIGS. 4 and 5.

FIG. 4 shows the dot matrix processed by the logic circuit 4 (FIG. 1), in which each dot is identified by attaching 2-bit information. For example, this is a character pattern for recording a hyphen "-".

Here, the portion marked with "00" corresponds to a so-called background color (white dot) portion where no characters are present. All of the parts on the outer periphery (not shown) are of the same ground color. Further, the portions marked with "Ol" indicate dots that should be turned on (black dots) when recording the basic pattern.

Further, the portion marked with "11" indicates the dot that should be turned on when recording the outline character pattern. this is,
This corresponds to the portion sandwiched between shell pattern 8 and shell pattern 9 in FIG. Furthermore, the portions marked with "01" correspond to the portions excluding the basic pattern inside the shell pattern 8 in FIG.

In this way, for example, when a basic pattern and an outline character pattern are input from two sets of font memories (not shown) to the logic circuit 4 (FIG. 1), and processing based on the instruction "01" is performed in this logic circuit, A basic pattern l as shown in FIG. 5a is output from this logic circuit.

In addition, when processing based on instruction "11" is performed, Fig. 5 d
Outline character pattern 2 is output as shown in FIG.

Furthermore, when processed using the logic of (not 00) AND (not 11) or “lO”OR”01”, the character pattern corresponding to the inner part of shell pattern 2 (d in the same figure) is obtained, as shown in Figure 5. 11 are synthesized. Furthermore, when controlled using the logic (not 00), a character pattern 12 corresponding to a thick hyphen is synthesized, as shown in FIG. 5C.

In this way, four types of character patterns can be obtained by combining the outputs of the two sets of font memories.

Similarly, if each dot is identified using N bits of information, (2'''-1) shell patterns can be designed in addition to the basic pattern.

In other words, the dot matrix is divided into the part without dots, the basic pattern part, the first shell pattern, the second shell pattern, etc.
・In order of the (2nd)-1st shell pattern, from “0” to “2”-
It is sufficient to identify information with a weight of 1'. Then, signals corresponding to dots to be turned on can be extracted from the dot matrix based on a predetermined instruction.

When the compositing process is performed on the character pattern "mountain" shown in Figure 3 in exactly the same manner as explained in Figure 4.5, 01
” By turning on the basic pattern A, obtain the “
Turn on the "Ol" and "IO" parts to synthesize the thick Gothic character pattern (shell pattern B and all its insides in Figure 3), and turn on the parts other than "00" to create an even thicker Gothic character pattern. (Outline character pattern C and its inner part in Figure 3), and turn on the "11" part to create the outline character pattern C.
can be humiliated.

Here, without the shell pattern completely surrounding the basic pattern,
If some of the dots overlap, unnecessary dots will be recorded. Therefore, in the present invention, the shell patterns are set and designed so that the shell patterns always surround the basic pattern in order. Furthermore, as shown in FIG. 1, by combining this with a hatching pattern, even more various character patterns can be synthesized. This process is
It is possible to achieve sufficient speed by simply obtaining a logical sum or a logical product.

Figures 6a-H are synthesized by combining and processing the basic pattern A in Figure 3, the first shell pattern B (including the basic pattern), and the outline character pattern C as follows. This shows the character pattern.

Figure 3 a...Shading pattern b...A+B C...A+C d・---C+ (Axnot B)e...
...C+ (AxB) f.--Axnot e g.-. (Axnot C)+B Of course, various other combinations are possible.

"Modification" The character pattern recording method of the present invention is not limited to the above embodiment.

It goes without saying that various character patterns can be synthesized by combining basic patterns, shell patterns, and other patterns in more complex ways.

"Effects of the Invention" The character pattern recording method of the present invention described above can synthesize various character patterns at high speed using a relatively small amount of font memory and a simple logic circuit.

Therefore, a printer capable of recording document titles and various decorative characters can be provided at a lower cost.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a signal processing part showing an embodiment of the character pattern recording method of the present invention, FIGS. 2 and 3 are explanatory diagrams showing the relationship between the basic pattern and shell pattern, and FIG. and FIG. 5 are explanatory diagrams showing an example of simple signal processing, and FIG. 6 is an explanatory diagram showing an example of a character pattern synthesized by the method of the present invention. ■・・・Basic pattern, 2.3・・・Shell pattern. Applicant: Fuji Xerox Co., Ltd. Agent

Claims (1)

[Claims] When recording a character pattern on a recording member using a dot matrix, for the same character, a basic pattern and one or more types of shell patterns surrounding the basic pattern in order are provided, and the logical relationship between the basic pattern and the shell pattern is determined. A method for recording a character pattern, characterized in that a predetermined character pattern is synthesized from a combination and recorded.