JPS603693A - 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] [Field of Application of the Invention] A technology for displaying characters in a dot matrix configuration of a character pattern with a larger number of dots than the number of characters displayed on a physical screen using a character display device with the present invention and a keyboard connected thereto. It is created on the screen of a character display device using .

[Background of the invention]

There are many devices that represent characters using dot matrices, but in Chinese character display devices and Chinese character printing devices, characters of 9 to 10 points are represented using dot matrices of 16 x 16 dots to 32 x 32 dots. When creating character patterns for new characters to be used with these devices, the dot pitch is as fine as 0.1 to 0.2 mm in the actual character size, and the creator's visual judgment cannot follow it, so it takes many times more. The method is to create a dot matrix composition of the character pattern in an enlarged form.

When creating such a character pattern using a character display device, since the minimum display unit of the character display device is a character, each dot of the character pattern corresponds to a character such as @ or * as shown in Figure 1. I'm letting you do it. That is, in creating a dot matrix configuration of a character pattern of m×n dots, a display area of M characters×N rows is used. At this time,
If the number of characters in one line of the physical screen of the display device is less than the number of horizontal dots of the character pattern, and the number of lines of the physical screen is less than the number of vertical dots of the character pattern, the dot matrix configuration of one character pattern will not be displayed physically. It overflows from the screen.

For example, as shown in Figure 1, when the character pattern is composed of 20 dots horizontally x 20 dots vertically, and the physical screen size of the character display device is 20 characters horizontally and 10 lines vertically, the first
Either the upper half of the character pattern is displayed on the screen and the lower half of the character pattern is displayed on the second screen, or a portion of the character pattern is displayed by scrolling. In either case, the entire character pattern is By not being able to see
This will lead to a deterioration of the man-machine interface for the creator.

[Purpose of the invention]

An object of the present invention is to create a character pattern with a larger number of dots than the number of characters displayed on a physical screen on one physical surface without changing the basic technology of character display in a character display device.

[Summary of the invention]

In the present invention, the dot matrix structure of a character pattern created at the display position of one character on a character display device is horizontal A dots and vertical B dots, and the Zaxb combination pattern represented by the combination of horizontal A dots and vertical B dots is expressed as a pixel. Characters are prepared in advance in a form that can be referenced using basic character display technology (in other words, pixel characters in the same form as normal characters), and dot information at a specific position in the Todd matrix is input from the keyboard. At that point, the corresponding pixel character is replaced by the combination of dot information of the a x b dots at the character display position, including the input dot information, and the dot matrix of the character pattern is replaced in synchronization with the input from the keyboard. The structure is created on the screen of a character display device.

[Embodiments of the invention]

Next, an embodiment of the present invention in which two dots horizontally and two dots vertically in a dot matrix structure of a character pattern are assigned to one character display position will be described with reference to the drawings.

FIG. 2 is a block diagram of a character pattern creation device which is an embodiment of the present invention.

The character pattern creation device includes a keyboard 1 for inputting dot information, an input control circuit 2 for controlling the coordinate position of information input from the keyboard 1, an output control circuit 3 for selecting a pixel character code based on the input information, and a display 6. It is composed of a screen buffer 4 that stores character code information of data and a pixel character memory 5 that stores character patterns of pixel characters.

FIG. 3 shows pixel character patterns and assignment codes.

The keyboard 1 is a JISC6233 with a cursor key and several function keys added, and the character keys and interval keys are used interchangeably when creating character patterns.

Character key 1... Indicates the upper left dot position of the character display position. Character key 2... Indicates the upper right dot position of the character display position. Character key 3... Indicates the lower left dot position of the character display position. Indication character key 4...Indication of the lower right dot position of the character display position.Indication of the character key B...Black dot input interval key...White dot input.Character key C...Dot inversion instruction A method for creating the character pattern shown in FIG. 1 will now be described. A function key is used to switch from the normal character display mode to the mode for creating the character pattern of the present invention. When the character pattern creation mode is entered, the output control circuit 3 displays the display area allocated for character pattern creation as shown in FIG.
The input control circuit 2 sets the input coordinates to the upper left dot position of the first character display position. Dot input is from (A-U, 1-L) to (A-U1-R) in the dot matrix configuration shown in Figure 4.
...(A-U, 10-R),) A-L0, 1-L)・
... (A-L0, 10-R) ... (J-L0, 10-
R) are input in this order.

In this mode, when the return key is pressed, A-U→A-L0
A line break of BU→ is performed. The cursor keys move forward and backward by character display position, but the displayed content does not change.

When creating the dot matrix configuration shown in Figure 4,
By default in this mode, the dot input position is (A-
U, 1-L). By pressing the interval key or character key B on the keyboard 1, the input control circuit 2 advances the dot input position one by one in the horizontal direction.
- To input the raster line shown in U, press the interval key five times, press the letter key B interval key five times, and press the letter key B. At this point, inputs from (AU, 1-L) to (AU, 6-R) have been made, so the return key is pressed. By pressing the return key, the input control circuit 2 changes the dot input position to (A-
Proceed to L0, 1-L). Since the input dot data for the A-U raster line and the A-L0 raster line are the same, the input for the A-L0 raster line is completed by performing the same operations.

When using the cursor keys, operate as follows. A-
In the U raster line, by pressing the forward cursor key twice, character position 3 in the horizontal direction becomes the dot input position.

Here, by pressing the character key 2, the input control circuit 2 performs control by setting the upper right dot position of the character position as the dot input position. By pressing letter key B,
A black dot is input to (A-U, 3-R). The dot input position advances to (A-U, 4-L), so if you cannot press character key 2 after pressing the forward cursor key twice, the dot input position advances to (A-U, 3-R). When instructed to do so, by pressing character key B, a black dot is input at (A-U, 3-R).

If you input the J-L0 raster line by any operation,
The input of this character's dot matrix configuration is completed.

FIG. 5 is a transition diagram of the character display position A in the vertical direction and the character display position 3 in the horizontal direction. The character display position (
In A, 3), four dot input instructions may occur. A-U
When inputting a raster line, the upper left dot is first input, followed by the upper right dot, and when the A-L0 raster line is input, the lower left dot and then the lower right dot are input. The input control circuit 2 converts the dot input coordinates and input dot data into the format shown in FIG. 6 and passes them to the output control circuit 3. In the input dot data, each bit position corresponds to the pixel character code, and it is 0 when the interval key is pressed, and 1 when the character key B is pressed.The creation/correction bit is the interval key, the character key. It is 0 when B is unable to hit. The output control circuit 3 uses the character display position address of the information sent from the input control device 2 to
Read the pixel character code at the relevant position in the screen buffer 4, and since the creation/correction bit is 0, write the result of logical ORing with the input dot data to the screen buffer 4.The display 6 is based on the contents of the screen buffer 4. Since the contents of the current screen buffer are constantly displayed by referring to the pixel character memory 5, the latest dot matrix configuration can be displayed every time an input is made from the keyboard 1.

To change an already input white dot to a black dot or a black dot to a white dot, proceed as follows. Position the dot at the position you want to change using the same procedure as when creating it, and press the letter key C. When character key C is pressed, the input control circuit 2 sets the creation/correction bit to 1 in the format shown in FIG.
Set the bit at the corresponding position of the input dot data to 1. The output control circuit 3 reads the pixel character code at the corresponding position in the double-open buffer 4 from the character display position address of the transfer information from the input control circuit 2. Since the creation/correction hit is 1, exclusive logic is applied to the pixel character code and input dot data, and the result is written to the screen buffer 4. The following operations are the same as creation.

The dot matrix configuration of the character pattern created and corrected in this way is notified by pressing one of the function keys on the keyboard 10, and the output control circuit 3 extracts the contents of the screen buffer 4. , and is transferred to a character pattern creation circuit, which is a host device, and edited and registered as one character by the character pattern creation circuit.

In this embodiment, character keys 1, 2, 3, 4, B, C, and interval keys are used, but the character keys are not specified.

〔Effect of the invention〕

The present invention uses the basic technology of character display devices to create a dot matrix structure of character patterns, and can improve the man-machine interface with the operator.

[Brief explanation of drawings]

Fig. 1 is a dot matrix configuration diagram of a current character pattern using a character display device, Fig. 2 is a block diagram showing an embodiment of the present invention, Fig. 3 is a configuration diagram of a pixel character, and Fig. 4 is a diagram of the current character pattern. A dot matrix structure diagram of a character pattern using the invention, FIG. 5 is a transition diagram of a character display position, and FIG. 6 is a format diagram of input dot information created by an input control circuit. 1...Keyboard 2...Input control circuit 3...Output control circuit 4...Screen buffer 5...Pixel character memory 6...Display attorney Akio Takahashi/Figure H= /2 34.56 7 8 9/θ// /2 /
, 3/4/6 /4 /772! /ri2θth 3rd field (θθoo)2 E mouth (/θθθ)2 field (θ00υ2
N(/θθ/)z 口(θ010)2 日(/θ/θ)2 目(θ0/l)2 ward(/θ//)2 目](θ/θ2 口(/100)2 Field (θ10/)
2 trouble (//θ/) 2 “circle (θ/10) 2 ' IIm play (///θ) 2 field (
0/I/)2 田(////)2 4th mouth 5th figure

Claims (1)

[Claims] 1. In a character display device with a physical screen consisting of M characters per line and N lines per screen, horizontal m dots (m
>M), when creating a dot matrix configuration of a character pattern consisting of vertical n dots (n > N) by inputting from the keyboard, the horizontal a dot and vertical b dot of the character pattern created at one character display position and also,
It has Za x b pixel characters represented by horizontal a dots and vertical b dots, and the character display position is determined based on the dot input information from left to right and top to bottom of the dot matrix of the character pattern input from the keyboard. A character pattern creation device that creates a dot matrix configuration of a character pattern of M×a (≧m), N×b (≧n) dots by directly converting pixel characters.