JPH0812546B2 - Character processor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character processing device for displaying a character pattern.

[0002]

2. Description of the Related Art In a conventional character processing device, a character string is stored by a character code inside the device, and when displaying the stored character string, a character pattern generator that stores a character pattern corresponding to the character code is used. The character pattern corresponding to each stored character code is called and displayed at the display position corresponding to the storage position of the character string.

At this time, when a character whose character pattern is not stored appears in the device, a blank is displayed or a character pattern is read from an external storage device and displayed each time the character appears. .

[0004]

However, among the above-mentioned conventional character processing apparatuses, the apparatus for displaying a blank cannot display the character pattern corresponding to the blank portion at all.

In addition, in a device that reads a character pattern from an external storage device and displays it each time a character not stored in the device appears, the process of reading the character pattern from the external storage device, which takes a long time, is repeated. It is necessary, and it takes time to display the entire character string. Here, it is not always necessary to display a pattern of each character for a character that is not inside the device, and it is sufficient if it can be displayed in some cases or by characters.

Therefore, the present invention is capable of displaying a character pattern string for an input character string at high speed, and for a character for which a character pattern is not stored inside the apparatus, a character processing for confirming the character pattern as needed. The purpose is to provide a device.

[0007]

In order to solve the above-mentioned problems, the present invention has a built-in character pattern storage means in which a character pattern corresponding to a character code is stored, and the corresponding character pattern is stored in the character pattern storage. The input means for inputting the character string to the character processing device connected to the external storage means storing the external character pattern corresponding to the character code of the external character not stored in the means, and the character string input from the input means. A storage unit that stores a corresponding character code string, a display unit that displays a character pattern, and a character pattern that the character code corresponds to each character code of the character code string stored in the storage unit. Is a character code stored in the character pattern storage means,
When the corresponding pattern is read from the character pattern storage means and displayed, and the corresponding character pattern is not stored in the character pattern storage means and is a character code of an external character stored in the external storage means, First display control means for displaying a string of character patterns corresponding to the character code string on the display means by displaying the pattern, and external character display instruction for displaying the external character pattern corresponding to the character code of the external character Means, a cursor designating means for designating one character pattern by a cursor from the character pattern sequence displayed on the display means, and the external character display instruction when the special pattern is designated by the cursor designating means. The external pattern stored in the storage unit corresponding to the specified special pattern in response to an instruction from the unit. Based on the character code, reads the external character pattern corresponding from said external memory means comprises a second display control means for displaying on the display means.

[0008]

In the character processing device of the present invention, the character code string corresponding to the character string input by the input means is stored in the storage means, and the character code stored in the storage means by the first display control means. For each character code in the column, when the corresponding character pattern is a character code stored in the character pattern storage means, the corresponding pattern is read from the character pattern storage means and displayed, When the character pattern to be stored is not stored in the character pattern storage means and is a character code of an external character stored in the external storage means, by displaying a special pattern, the character corresponding to the character code string is displayed. A row of patterns is displayed on the display means. When the special pattern is designated by the row of the character patterns displayed on the display means by the cursor designating means, in response to the instruction of the external character display instructing means for instructing the display of the external character pattern corresponding to the character code of the external character. Then, based on the character code of the external character stored in the storage means, which corresponds to the specified special pattern by the second display control means,
The corresponding external character pattern is read from the external storage means and displayed on the display means.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 exemplifies a sentence display mode on a display unit of a character processing apparatus to which the present invention is applied. In the illustrated character string, 1 is a mark which is replaced with a special character having no corresponding character pattern in the character pattern generator and recorded.
That is, it is a symbol that is tentatively called a "girder mark". After moving the cursor 2 to the position of this barbed mark 1,
As mentioned above, special characters that are not in the character pattern generator,
That is, by pressing the external character display key for displaying the character tentatively called "external character", as shown in FIG.
A bit pattern representing the external character is displayed on the display unit as a dot pattern corresponding to each pixel.

Next, FIG. 3 shows a structural example of the present character processing apparatus for displaying characters in the above-described manner. In the configuration shown in the figure, the character information input by operating the keys of the keyboard 3 is coded by the encoder 4, and the code is input to the code discriminating unit 5. The code discriminating unit 5 discriminates whether or not the input code is the external character display instruction code, and if it is a code other than the external character display instruction code, that is, if it is a character code or another control code, the input code is It is supplied to the control unit 6 which is preferably configured by a processing device (microprocessor) or the like to process or control the character code, and for example, the character code is supplied to the sentence buffer 7 or various edits are performed. Perform processing.

In such a case, under the control of the control unit 6, part of the sentence information accommodated in the sentence buffer 7 is transferred to the refresh memory 9 for display on the display unit 8 as necessary, The display control unit 10 takes out a character pattern corresponding to the character code in the refresh memory 9 from a character generator (CG), that is, a character pattern generator 11 and supplies the character pattern to the display unit 8 to display the text as shown in FIG. Is displayed.

FIG. 2 shows a character pattern of an external character designated by the cursor 2 by the display controller 10 according to the cursor position information in the cursor register 12 written under the control of the controller 6. To display.

The cursor 2 moves stepwise under the control of the control section 6 each time a character code is input, and moves up, down, left and right in response to the operation of the cursor movement instruction key on the keyboard 3. It is controlled by the controller 6 to move.

When the above-mentioned external character is present in the character string of the input sentence, the display controller 10 controls
The "girder mark" shown in is displayed instead. In order to know what kind of character is the external character that is displayed as a substitute by the "girder mark" in the display character string, by pressing the external character display instruction key on the keyboard 3, the external character display control unit in the code discriminating unit 5 is displayed. Instructs 13 to display external characters.

In the external character display control unit 13, the character code corresponding to the cursor position stored in the cursor register 12 is retrieved from the refresh memory 9, and the character pattern of the external character stored in the external storage device 14 is read out. The read character pattern is decomposed into pixels, and when the pattern of each pixel is "0", a space code is generated. When the pattern of each pixel is "1", a code representing a square mark, that is, , The dot pattern codes are stored in the corresponding memory storage addresses of the characters, and the codes for each pixel are sequentially read and displayed on the display unit 8 as shown in FIG. 2, for example. The external storage device 14 is configured by using, for example, a floppy disk or the like.

In the above description, one pixel in a character pattern of an external character is associated with one character code representing a square mark, but the number of scanning lines forming the display surface is in the vertical direction of the character pattern. If the number of pixels is smaller than the number of pixels and the character pattern cannot be displayed on one screen depending on the correspondence of one pixel one character code, a combination of a plurality of pixels in the vertical direction of the character pattern is made to correspond to one character code. The two pixels in the direction are made to correspond to one character code, and FIG.
By storing the character codes representing the four types of patterns in the refresh memory 9 as shown in (4), the character patterns can be appropriately displayed on the respective display surfaces. In the same manner, various patterns can be represented by associating character codes with a plurality of vertical pixels of 3 pixels or more.

[0018]

As described above, according to the character processing device of the present invention, when a character pattern string for an input character string is displayed, the corresponding character pattern is stored in the built-in character pattern storage means. For external characters stored in the external storage means, by displaying a special pattern, the character pattern string corresponding to the input character string can be read out without reading the pattern from the external storage means. In addition to being able to display at high speed, even for external characters once displayed with a special pattern, if necessary, by specifying the special pattern on the display with the cursor and instructing to display the external character pattern, the corresponding external character pattern can be displayed externally. There is an effect that it can be confirmed by reading out from the storage means and displaying it.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a sentence display mode in a character processing device to which the present invention is applied.

FIG. 2 is a diagram showing an example of a mode of displaying a character pattern for the external character.

FIG. 3 is a block diagram showing a configuration example of a character processing device according to an embodiment of the present invention.

FIG. 4 is a diagram similarly showing an example of a mode of pixel display of the external character pattern.

[Explanation of symbols]

 1 Girder mark 2 Cursor mark 3 Keyboard 4 Encoder 5 Code discriminating unit 6 Control unit 7 Sentence buffer 8 Display unit 9 Refresh memory 10 Display control unit 11 Character generator 12 Cursor register 13 External character display control unit 14 External storage device

Claims (1)

[Claims] 1. A built-in character pattern storage unit that stores a character pattern corresponding to a character code, and stores an external character pattern corresponding to a character code of an external character whose corresponding character pattern is not stored in the character pattern storage unit. A character processing device connected to the external storage means, input means for inputting a character string, storage means for storing a character code string corresponding to the character string input by the input means, and a character pattern. Display means for displaying, and for each character code of the character code string stored in the storage means, the character code is a character code in which the corresponding character pattern is stored in the character pattern storage means. In this case, the corresponding pattern is read from the character pattern storage means and displayed, and the corresponding character pattern is stored in the character pattern storage means. Not not been the case the a character code of the external character stored in the external storage means,
First display control means for displaying a string of character patterns corresponding to the character code string on the display means by displaying a special pattern, and external character display for instructing display of an external character pattern corresponding to a character code of an external character 1 from the instruction means and the sequence of the character patterns displayed on the display means
Cursor designating means for designating one character pattern by a cursor, and when the special pattern is designated by the cursor designating means, the special pattern corresponding to the designated special pattern according to the instruction by the external character display designating means, A second display control means for reading a corresponding external character pattern from the external storage means based on a character code of the external character stored in the storage means and displaying the pattern on the display means. apparatus.