JPH0113117B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a character pattern registration processing method, particularly in a document creation processing device equipped with a display such as a liquid crystal display that can display only a small number of lines, such as one or two lines. The present invention relates to a character pattern registration processing method that allows any desired character pattern, so-called non-standard characters, to be reliably registered.

FIG. 1 is a diagram explaining the correspondence between dot matrix and characters, FIG. 2 is a diagram explaining an example of the mode of registering conventional character patterns, and FIG. 3 is a display screen of a display device related to the present invention. Here is an example.

For example, as shown in Figure 1, the character 1 displayed on a display such as a word processor is n×m.
It is represented by a dot matrix pattern composed of dots 2. That is, each character is represented by black and white dots such as 16x16, 24x24, or 32x32, for example. And the white/black of these dots is
Inside the processing device, data processing units and
It corresponds to 0/1 of a bit, which is the smallest unit of storage.

For commonly used standard patterns of characters, information on the bits 0/1 is provided and used in the form of a read-only memory or the like in which the information is predetermined and stored. However, it is desirable to be able to use special patterns other than standard patterns at any time, and in such cases, users can register the special patterns individually and use the registered pattern information. Display is being carried out.

Conventionally, as a display device for a document processing device,
CRT display devices are often used.
FIG. 2 is a diagram for explaining the manner in which the above-mentioned special pattern is registered when a conventional CRT display device is used. In the figure, 1' is a character area corresponding to the size of character 1 shown in Figure 1, and 3 is a character area corresponding to the size of character 1 shown in Figure 1.
On the display screen of the CRT display device, 4 represents a display area for character pattern registration, and 5 represents a cursor.

For example, when using a CRT display device,
A relatively large display screen 3, such as 40 characters x 22 lines, can be provided. Therefore, when registering a custom character, the display area 4 for character pattern registration is displayed on the display screen 3 by specifying pattern registration, and the display area 4 corresponds to the dot 2 shown in Figure 1. so that n×m character areas are included. Then, by pressing a specific character key while moving the cursor 5 indicating the character position using the cursor movement keys, the dot corresponding to the character position at the time of the press is blacked out. The pattern is registered by processing the pattern as follows.

However, in the case of CRT display devices, there are problems in that it is difficult to make the device smaller and lighter, and it is easy to cause eye fatigue. Therefore, document processing devices that use liquid crystal displays have recently begun to be used. However, in the case of a liquid crystal display, it is difficult to increase the number of characters displayed on one screen due to technical constraints and costs related to the so-called duty ratio. Only one or two lines of characters 11 are displayed. In this case, display screen 1
0, it is not possible to provide a display area 4 for character pattern registration as shown in FIG. I was unable to register a pattern.

The present invention aims to solve the above-mentioned problems by preparing a pattern configuration buffer in which each dot of a character pattern composed of an n×m dot matrix corresponds to one character. In addition to cutting out data line by line from the configuration buffer and displaying it on the display, the line number where the data is located is also displayed, and pattern data can be input by selecting any line by moving the cursor. Therefore, it is an object of the present invention to provide a character pattern registration processing method that enables character pattern registration from a display device with a small number of display lines, such as a liquid crystal display device. This will be explained below with reference to the drawings.

FIG. 4 shows the configuration of an embodiment of the present invention, FIG. 5 shows an example of the configuration of a display area in an embodiment of the present invention, and FIG.
The figure shows a diagram illustrating a character pattern registration mode according to the present invention.

In the figure, 21 is a central processing unit (CPU), 22 is a character generator, 23 is a character generator for external characters, 24 is a keyboard control unit, 25 is a keyboard, 2
6 is a display control section, 27 is a display memory, 2
8 is a display, 29 is a memory, 30 is a document data processing section, 31 is a pattern configuration buffer, 32 is a cursor control section, 33 is a cursor storage section, 34 is a line number display section, 35 is a pattern data display/input section , 36 is a pattern storage section, 40 is a line number display area, 41 is a pattern data display area, 43
represents a cursor.

The central processing unit 21 is a device that sequentially fetches and executes instructions on the memory 29. The character generator 22 is constituted by, for example, a read-only memory (ROM), and outputs a character pattern image corresponding to a predetermined character code. Character generator 22 stores pattern images for standard characters. The character generator 23 for external characters is constituted by, for example, a random access memory (RAM). This includes:
If necessary, pattern images such as characters, symbols, codes, etc. that are not registered in the character generator 22 can be registered and stored through processing described later. Since the pattern image data is now given externally,
In contrast to standard characters, characters registered in the character generator 23 for external characters are called "external characters." pattern·
For example, if an image is defined by a 16 x 16 dot matrix, 16 x 16 = 256, so 256
Requires bits of storage space, 32 bits per character.
Byte space is allocated. For example 24×24
The size of the dot matrix, such as the dot matrix, is determined depending on the equipment configuration of the system, but in this embodiment, a case of a 16×16 dot matrix will be explained. The same applies to other cases. When a new character is registered in the character generator 23 for external characters, for example, a 2-byte undefined character code is assigned, and after registration, the binary number of the pattern image is specified from the address corresponding to that character code. Data is read and output.

The keyboard control unit 24 controls the keyboard 25, scans the keyboard 25 with a strobe signal, detects the press of a key, and sends the central processing unit 21 a character code corresponding to the pressed key. It is intended to convey the following.

The display control section 26 scans the display memory 27, sequentially reads data of the 0/1 pattern image stored in the display memory 27, and performs control to output it to the display 28. The display memory 27 is a random access memory with a storage capacity corresponding to the display screen of the display 28. For example, when the display 28 displays 1 line x 20 characters, one character is 16 x 20 characters. If it is composed of 16 dot matrices, it has a capacity of 640 bytes. The display 28 displays characters, symbols, etc. using, for example, a liquid crystal.

A document data processing unit 30 consisting of a group of commands stored in a memory 29 processes document data input from the keyboard 2 under the control of the central processing unit 21, and displays document creation and editing on the display 28. The designated document is printed on a printer (not shown) while being displayed. These can be considered to be the same as before.

The pattern configuration buffer 31 is used to create a non-standard character pattern, and is a memory having a storage capacity for at least 16 x 16 character codes when, for example, one character is represented by a dot pattern of a 16 x 16 dot matrix. . The 16×16 character code matrix in the pattern configuration buffer 31 is used to express a 16×16 dot matrix pattern. That is, the pattern configuration buffer 31
One character is determined to correspond to one dot of the character pattern of the external character to be newly registered or modified. When a new registration is started, the contents of the pattern configuration buffer 31 are, for example, blanked or cleared, and when any character is written, the dot corresponding to the character position is treated as black. A dot corresponding to a blank character is determined to be white.

The cursor control unit 32 controls a cursor that indicates the position of the character currently being operated among the information displayed on the display 28, and
Detects the press of each of the up, down, left, and right cursor movement keys and moves the cursor upward, downward, left, or right. In the case of the present invention, when creating a non-standard character pattern, one line of character strings in the pattern configuration buffer 31 is displayed on the display 28, and the pattern configuration buffer 31 is displayed using the upward or downward cursor movement key. The line that is cut out and displayed can now be changed.
The cursor storage section 33 stores the position of the cursor, and is managed by the cursor control section 32. That is, the cursor storage unit 33
holds the values of the X coordinate indicating the position in the row and the Y coordinate corresponding to the row number.

The line number display unit 34 indicates that the information currently displayed on the display 28 is based on the Y coordinate held in the cursor storage unit 33.
The number of the upper row is displayed on the display 28 as will be described later with reference to FIG. By specifying a line number, the pattern of numbers generated by the character generator 22 is transferred to a predetermined area of the display memory 27 and displayed.

The pattern data display/input unit 35 reads the contents of the cursor storage unit 33, extracts one line of character string on the pattern configuration buffer 31 where the cursor is positioned, and stores the pattern data in the display memory 27.
It writes in an image and displays the character string, and when a character is input from the keyboard 2, the code of the input character is written at the position on the pattern configuration buffer 31 corresponding to the current cursor position. . The pattern storage section 36 is
Upon notification of completion of pattern data input, the characters in the pattern configuration buffer 31 are read out sequentially starting from the first character, and the bit value is set to "0" in order to make blank characters correspond to "white" dots, and the other characters are read out as "0". Convert the pattern data to binary data by setting the bit value to ``1'' so that it becomes a black dot,
This is written in a predetermined area of the character generator 23 for external characters.

The display area 10 of the display 28 is configured as shown in FIG. 5, for example. Assume that the display area 10 has a display size of, for example, 20 characters per line. A two-digit area is prepared as the line number display area 40,
Here, the current line number is displayed by the line number display section 34. As the pattern data display area 41, an area of 16 digits per line is prepared. Here, pattern data display/input section 3
5, one line of the pattern configuration buffer 31 is displayed. The cursor 43 can be moved within the pattern data display area 41 during pattern registration. When there is an instruction to move the cursor 43 upward or downward, the position of the cursor 43 within the pattern display area 41 is not changed, but instead the displayed content is changed by scrolling.

If a dot pattern display area 44 is further provided in the display area 10, character patterns can be registered and modified even more easily. In this dot pattern display area 44, the contents of the current pattern configuration buffer 31 are displayed as dots for one character by the pattern data display/input section 35.
By converting it into a pattern and writing it into the display memory 27, the pattern data input so far is displayed as a dot image. It may be considered that the conversion from pattern data to a dot pattern is performed in the same way as the conversion by the pattern storage section 36.

Next, a specific manner of pattern registration will be described with reference to FIG. 6. For example, as shown in FIG. 6, when registering the postal code mark "〒" in the external character character generator 23, the operator first uses the keyboard 25 to instruct pattern registration. As a result, the contents of the pattern configuration buffer 31 are blanked and cleared, and the cursor is positioned at the character position 50 shown in FIG. This cursor position information is stored in the cursor storage section 33, and the contents on the pattern configuration buffer 31 are initially displayed as in the display area 10' indicated by dotted lines in FIG.
In this example, the "black" dot pattern starts from the third line, so by pressing the cursor movement key 46 twice, the display area is adjusted to the third line of the pattern configuration buffer 31. Then, enter 10 characters starting from the fourth digit. In this example, when characters are input using normal character keys other than function keys and blank keys, the character code of a black circle "●" is written at the position specified by the cursor in the pattern configuration buffer 31. It's getting old. Note that when an input is made by pressing the blank key, a character code of "blank" is written in the position specified by the cursor in the pattern configuration buffer 31.

By inputting characters into the third line of the pattern configuration buffer 31, a pattern of horizontal bars above the postal code mark is created. Similarly, the cursor movement key 46 is pressed to input information on the seventh line. The illustrated display area 10 in FIG. 6 shows the state during this input. Line number display area 40
, it is displayed that the seventh line is currently being processed, and the line position within the pattern configuration buffer 31 can be seen. The character to be operated in the horizontal direction can be identified by a cursor 43. If you need to re-enter the previous line,
Using the cursor movement key 45, it is possible to return to the previous line. When the input of pattern data is completed through the operations described above, the pattern storage section 36 is activated by a notification of completion. The pattern storage section 36 converts the contents of the pattern configuration buffer 31 into binary data representing a dot pattern, and registers it in the character generator 23 for external characters. The character at character position 50 shown in FIG. 6 corresponds to one bit of bit 51 in character generator 23 for external characters. From then on,
According to the specification, the pattern image registered in the external character character generator 23 is transferred to the display memory, so that the postal code mark can be displayed on the display and printed in the same way as normal standard characters. becomes.

Although the example of the 16×16 dot matrix has been described above, the same applies to other numbers of dots.
The same applies when the display can display not only one line but two or more lines at a time. In particular, in the case of a display unit with a display area of two or more lines, when a movement instruction that would cause the cursor to leave the current display area is given, the display contents may be scrolled to change the line to be displayed. All you have to do is control it.

As explained above, according to the present invention, even if it is a document processing device that uses a display device such as a liquid crystal display that cannot have a large number of display lines, desired pattern registration can be performed using a conventional CRT display device. This can be done in the same way as when using .

[Brief explanation of drawings]

FIG. 1 is a diagram explaining the correspondence between dot matrix and characters, FIG. 2 is a diagram explaining an example of the mode of registering conventional character patterns, and FIG. 3 is a display screen of a display device related to the present invention. 4 shows a configuration of an embodiment of the present invention, FIG. 5 shows an example of the configuration of a display area in an embodiment of the present invention, and FIG. 6 shows a diagram illustrating a character pattern registration mode according to the present invention. show. In the figure, 10 display screens, 23 a character generator for external characters, 31 a pattern configuration buffer, 32 a cursor control section, 34 a line number display section, 35 a pattern data display/input section, and 36 a pattern storage section. represent

Claims (1)

[Scope of Claims] 1. A display device that displays an n×m dot matrix of n width and m height in correspondence with one character,
In a data processing device equipped with a display having a display area of fewer lines than m lines of character strings, a character generator for external characters that generates a pre-registered dot pattern based on a specified code; a pattern configuration buffer having a storage capacity for at least n×m character codes in which a character code area is arranged corresponding to each dot position of the n×m dot matrix constituting the character pattern; and a character on the pattern configuration buffer. a cursor control unit that controls a cursor to specify a position; and a cursor control unit that displays line number information of a line that includes the character position specified by the cursor in the pattern configuration buffer in a part of the display area of the display device. While displaying the line number display area and the line containing the character position specified by the cursor in the pattern configuration buffer, enter the character code and character pattern corresponding to the dot part of the character pattern by inputting from the keyboard. Pattern data display that stores the character code corresponding to the blank area at the character position specified by the cursor in the pattern configuration buffer.
an input section; converts information for n x m character codes in the pattern configuration buffer into a form corresponding to a character pattern for n x m dots, and stores the conversion result in a predetermined area of the character generator for external characters; A character pattern registration processing method comprising: a pattern storage section for storing patterns in a character pattern registration processing method;