JPS61123872A - Correction and expansion of dot mitrix 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 correcting and enlarging characters in devices that express characters, symbols, figures, etc. using dots, such as various printers and display devices.

"Prior Art and Problems" Generally, when handling enlarged characters with each of the above devices, the basic pattern of dot-constituent characters is stored in a storage element such as ROM (read-only memory), and this basic pattern is enlarged and corrected. used.

Conventionally, as a correction and enlargement method for this purpose, a pattern formed by elements adjacent to each element of the basic character pattern and an enlarged partial pattern with correction dots added according to the enlargement magnification are stored in a storage element (such as a ROM). However, a method is adopted in which these partial patterns are synthesized to obtain an enlarged character pattern. Each method has its own characteristics depending on how adjacent elements are selected for obtaining correction information for the element to be expanded. If the standard is , the characters tend to be too thick, the original basic pattern must be composed of horizontal, vertical, and 45° directions, and the composite result may deviate slightly from the standard position. There is a problem with printing.

In addition, in the case where the square pattern formed by the adjacent 8-bit elements surrounding the enlarged element is used as a standard, although the above problem has been solved, the elements contributing to the structure of the partial pattern are enlarged. Since it is composed of a group of 9-bit elements, the circuit structure inevitably becomes complicated, and another problem arises in that it takes time to synthesize characters when reading from the ROM.

"Problems to be Solved by the Invention" The present invention provides a method in which when characters are corrected and enlarged, they are not over-corrected, the thickness is uniform, and character composition can be processed in a short time.

``Means for Solving the Problems'' As a means for solving the above problems, the present invention sequentially extracts each element of a basic character pattern composed of a dot matrix as an element to be enlarged, and corrects it. Combine the partial patterns created in advance for enlargement,
In a character correction/enlargement method for creating enlarged characters, when the pattern in all cases formed by five element groups consisting of the element to be enlarged and surrounding elements on the upper, lower, left, and right sides is human information, each The element to be magnified is simply magnified by a circuit consisting of a gate element configured to obtain a partial pattern according to the magnification, or by adding a correction door), or by deleting a correction dot. He invented a method for synthesizing corrected and enlarged characters by either enlarging the original or by combining these processes.

Hereinafter, the present invention will be explained in detail based on the drawings.

"Embodiment" Figure 1 shows the configuration of an embodiment to which the present invention is applied.
1 is a block diagram. Microcomputer-1 (
In this embodiment, an Intel 8085 is used) controls a character generator 3 and a correction/enlargement circuit 4 via an input/output controller 2. The character generator generates basic patterns of characters consisting of stored 24x24 dot matrices. The correction/enlargement circuit 4 corrects and enlarges the basic character pattern supplied from the character generator 3 according to instructions from the microcomputer, supplies the enlarged character pattern to the output canister 5, and outputs the characters stored in the output canister 5. The enlarged pattern is displayed externally.

FIG. 2 shows a 24 row by 24 column dot matrix for configuring the basic pattern of characters stored in the character generator. In the figure, 00 indicates a group of elements used to add or delete dots, X indicates an element to be enlarged, and A-D indicate elements surrounding X in the upper, lower, left, and right directions.

The element to be expanded X is located in the outermost row or column of the dot matrix, and the surrounding elements are 24x24
If the elements are located outside the matrix, all of those elements shall be O (meaning white).

Figures 3 and 4 show an element group G0 consisting of the enlarged element (X) and the elements A-D that surround it.
This figure shows the pattern created by , and the corresponding partial pattern when magnified by 2 or 3.4 times. This example shows that for patterns other than (C), (et), and <11 in the figure, the element to be expanded is simply expanded by 2.3.4 times, and basically ( C), [8), (i
) and patterns obtained by rotating them by 90', 180°, and 270°.

FIG. 5 is a block diagram showing the configuration of the correction/enlargement circuit 4. As shown in FIG. Figure (RIn Rz and Rs in al are each 8-bit shift registers, and each bit has a character.
The basic pattern of characters is supplied from the generator 3 in 8 bits each.

Of the constituent elements of the element group G0, the element to be expanded On the second bit.

D is then applied to the most significant bit of the 8 bits previously applied to R2. These signals are the signals E0 and El that specify the magnification factor (2x - E0 = 1.E, -0
, 3 times → Eo = O, El = 1.4 times - E, = 1. E
The output of the gate circuit is inputted together with l-1) to the gate circuit shown in Fig. 1(C) in accordance with the enlargement factor.

Tables 1, 2, and 3 show the relationship between the input and output of the gate circuit when the magnification is 2.3.4 times, respectively.0 The diagonal lines in the table indicate that the bit is O (white). means),
Even if it is 1 (meaning black), it means that it is a bit that does not participate in the composition of enlarged characters. In addition, in the case of simple expansion, if X-0, all of Y0 to YIs are Q,
-1 means that all of Y0 to YIS are set to 1. In this example, 1x (outputs the basic pattern of characters as is).

2x (corrected magnification shown in Table 1a).

3x (corrected magnification shown in Table 1b).

4 times (corrected magnification shown in Table 10).

6x (2x simple enlargement x 3x corrected enlargement).

8x (2x simple enlargement x 4x corrected enlargement).

A magnification of 12 times (3 times simple enlargement x 4 times corrected enlargement) is obtained.

FIG. 6(a) is an example of a basic character pattern composed of a 24×24 do-no-do matrix stored in the character generator, and represents the character ``moon''. Figure 6(b) is a three-fold corrected enlargement of the area within the bold line in Figure (8), and the shaded area means the case where simple three-fold enlargement is applied, and the blacked-out area shows the correction effect of this invention. It can be seen that this allows enlarged characters with uniform wall thickness and good quality to be obtained.

"Effect of invention" 5. Yo, t, yo, yo, yo, carpenter...a...
・Depending on the enlargement magnification and any patterns formed by □ (and the five element groups surrounding it in the top, bottom, left, and right), the element to be enlarged may be simply enlarged, enlarged with additional correction dots, or enlarged with correction dots added. The characters are corrected and enlarged by either deleting the enlargement or enlarging by combining these processes, but the pattern formed by the five element groups and the partial pattern corresponding to the enlargement rate are stored in the ROM. Instead of storing the characters in a memory element such as , the correction/enlargement circuit basically consists of only gate elements and directly synthesizes the characters.As a result, a unique effect can be obtained.

■ A composite character pattern with uniform thickness can be obtained without excessive interpolation.

■ Since the element group for creating a partial pattern consists of 5 elements including the element to be enlarged, the load on the electronic circuit is small, and therefore the time required to synthesize characters is shorter than, for example, the adjacent 8-bit method. Even about 1/
It can be shortened to about 2 to 1/3.

[Brief explanation of drawings]

FIG. 1: A block diagram of a circuit showing the configuration of an embodiment to which the present invention is applied. Figure 2: A diagram showing a 24x24 dot matrix that constitutes the basic pattern of characters stored in the character generator 3. Go is a group of elements for creating a partial pattern, and X is an element to be expanded. Figures 3 and 4: Diagrams showing patterns created by element groups and corresponding partial patterns 2, 3.4 times larger. FIG. 5: A block diagram showing the configuration of the correction/enlargement circuit 4. Table 1: A table showing the relationship between the input and output of the gate circuit, in the case of double. Table 2: Table showing the relationship between the input and output of a gate circuit, in the case of 3 times. Table 3: A table showing the relationship between the input and output of the gate circuit, in the case of 4 times. Figure 6... (al is an example of the basic pattern of characters stored in the character generator, (b) is a diagram showing the result of applying 3x correction and enlargement to the thick line in (a) Patent applicant Kanzaki Paper Co., Ltd. Figure 1 Figure 2 Diagram (b) Procedures Amendment, writing (method) % formula % 2. Method for amending and enlarging the letters that make up the dots in the name of the invention 3. Relationship with the case of the person making the amendment Patent applicant address 4-chome, Ginza, Chuo-ku, Tokyo 9-8-4, Agent residence (660) 1-115, Jokoji Motomachi, Amagasaki City, date of amendment order: March 6, 1985 (shipment date: 60.3)
．． 26) (Contents of amendment) il+ The explanations of Tables 1 to 3 in the column "4. Brief explanation of the drawings" in the specification are deleted. (2) Tables 1 to 3 attached to the specification will be deleted. (Above) Procedural amendment August 1, 1985 Patent Application No. 245265, filed in 1988 2, Method for amending and enlarging letters of the name of the invention 3, Person making the amendment Relationship with the case Patent applicant 4, Agent Place of residence: 7, Kanzaki Paper Co., Ltd., 1-11 Motomachi Jokoji, Amagasaki City, 660 JPY Contents of amendments Remains of attached sheet (contents of amendments) (1) Amendments to drawings (a) At the bottom right of Figure 5 is written. Please correct the above and submit the corrected drawings. (Middle) Newly supplement figures 6 to 8. . (C) Amend Figure 6 at the time of filing to Figure 9 and submit the amended drawing. (2) Amendment to the specification (al) In the column “4. Brief description of the drawings” in the specification,
・Add the following information after Figure 5. Figure 6: Otcr showing the relationship between the input and output of the gate circuit
□ times. Place.・Figure 7: A diagram showing the relationship between the input and output of a gate circuit, in the case of 3 times the number. Figure 8: A diagram showing the relationship between the input and output of the gate circuit, in the case of 4 times.) Specification In the column "4. Brief explanation of the drawings", correct "Figure 6" to "Figure 9". 8. List of attached documents Figures 5 to 9 One copy each Figure 9 (a) Figure 9 (b)

Claims (1)

[Claims] A method for correcting and enlarging characters that sequentially extracts each element of a basic character pattern composed of a dot matrix as an element to be enlarged, and composes a partial pattern created in advance to correct and enlarge the elements to create an enlarged character. When input information is a pattern and a magnification ratio in all cases formed by the element to be magnified and five element groups consisting of elements on the top, bottom, left, and right sides surrounding the element, the output is a partial pattern corresponding to each magnification. The element to be enlarged may be simply enlarged by a circuit consisting of a gate element configured to obtain a A method for correcting and enlarging characters, characterized by composing corrected and enlarged characters by combining and enlarging them.