JPH0815794B2 - Character processor - Google Patents

Description

The present invention relates to a character processing device such as a word processor.

The present invention relates to a word processor having a wide variety of printable character sizes.

[Conventional technology]

The conventional word processor has a structure as shown in FIG. The character string input from the keyboard 302 is displayed on the display device 303. The user performs input and editing work while looking at the display, and this display is performed as follows. That is, the CPU 301 scans the keyboard 302 and detects the input character string. CPU301 is VRAM
Write the code of the detected character to be displayed on 307. The display device 303 refers to the display character font 306 from the character code string expanded in the VRAM 307 to create and display a character image to be displayed.

Printing is performed as follows. That is, the character code string to be printed is read out from the document file 308 in which the document data to be printed is stored and expanded in the print buffer 310. The printer 304 refers to the print character font 309 according to the contents of this buffer and prints.

This conventional word processor uses 2 for printing for display purposes.
It has different types of character fonts. This is because it is necessary to display as many characters as possible for the limited display capacity in the display, but essentially different character fonts are used in printing in order to obtain a beautiful finished result. A 16x16 dot Gothic font is usually used as a character font for display, and a Mincho font with a matrix size of 24x24 dots or more is often used for printing. Further, Japanese Patent Laid-Open No. 55-147776 discloses that when a font is read, the read clock is halved or doubled to enlarge or reduce the font for display or printing.

Further, Japanese Patent Laid-Open No. 343421/5734 discloses that there are two types of fonts, Mincho typeface and Gothic typeface, and two types of typefaces are selected and displayed or printed by the typeface code attached to the character code. ing.

[Problems to be solved by the invention]

In the conventional document processing apparatus, the function of changing the size of the printed character is poor, and as shown in Japanese Patent Laid-Open No. 55-147776, one dot of a character font is printed vertically or horizontally to make n dots (n is an integer). ) It is a method to print out enlarged characters repeatedly. This method is limited to the case where n is an integer, and for example, not only does it impose a great burden on the CPU that is trying to expand it to 1.5 times or reduce it to 2/3 times the standard size, but it also causes the printed characters to be square and unusable. It becomes a natural thing.

Further, Japanese Patent Application Laid-Open No. 57-34241 only discloses that display or printing is performed using Mincho typeface and Gothic typeface font, and does not propose any new reduction printing function.

An object of the present invention is to provide a document processing apparatus capable of high speed printing of a character having a non-integral ratio to a standard character size such as a 2 / 3-width character without adding new hardware or complicated software logic. To provide.

[Means for solving problems]

A document processing apparatus according to the present invention is a character processing apparatus having font data accessed according to character data and display means for displaying according to the contents of the font data, wherein the font data is a plurality of font sets having different dot matrix sizes. Display control means configured to be divided and displaying only using a specific font set that is not the maximum size among the plurality of font sets, and print data using the plurality of font sets including the maximum size font set And a reduced print control means for generating reduced print data by using the specific font set used at the time of display as it is.

[Action]

It is preferable to use a matrix size as small as possible for the display character font in order to improve the efficiency of the display body. On the other hand, for printing, from the original purpose of a word processor, a matrix size is large enough to create a beautifully printed document. Therefore, it is possible to print in a small size by using a font that has been conventionally used exclusively for display as a print. In addition, the display font is generally a Gosic type, and it is possible to print two types of fonts, the Mincho type which has been conventionally used for printing.

〔Example〕

FIG. 1 is a block diagram showing the configuration of a character processing device according to the present invention.

The CPU 101 receives data input from the keyboard 102, processes such as kana-kanji conversion, a display device 103, a printer 104,
It controls the external storage device 105 and the like.

When inputting a document, the CPU 101 is the keyboard 102.
To detect the pressed key. For the character corresponding to the detected key, the character font is read from the first character font 106 and expanded in the VRAM 107. The display device 103
The display data of the VRAM 107 is read and displayed. The user creates document data while editing or correcting while viewing this display. The created document data is RAM108
Or stored in the external storage device 105. The CPU 101 also performs processes such as kana-kanji conversion and editing.

When the document data has been created, the normal printing process starts, but the operation at this time is as follows. Ie CPU1
Reference numeral 01 reads the content of the document data stored in the external storage device 105 or the RAM 108, reads the corresponding character font data from the first character font 106 or the second character font 109, and expands the print image in the print buffer 110. The printer 104 prints according to the print image developed in the print buffer 110.

Since the first character font 106 is also used for display, it is preferable that the matrix size is as small as possible. Normally, it is sufficient to have a matrix size of 14 to 16 dots. On the other hand, if the matrix size of the characters to be printed is larger than a certain level, the printing quality will be poor and the characters will end up.

Printing in various character sizes can be done as follows. That is, at the time of the document inputting work, the user designates a character string that is desired to be printed in large characters such as a title, or to be printed in small characters such as a comment line. This designation is recorded in the document data together with the character code string as an attribute of the character string or as a code that modifies the character code string in the document data.

At the time of printing, it is determined which of the first character font 106 and the second character font 109 the character font data should be read according to the character size specified in the document data, and the size of the character font data specified in the print buffer 110 is determined. It is enough to develop the character print image. The printer 104 prints according to the print image developed in the print buffer 110. Normally, a 24-pin dot matrix type is used as the printer 104. When printing a character having a matrix size smaller than 24 dots, for example, when printing a character having a font size of the first character font 106, allow 8 pins to play. Print with only 16 pins. When printing enlarged characters, one character may be printed several times.

If the matrix sizes of the first character font 106 and the second character font 109 are not in the relation of integral multiples, the conventional method of taking or reducing every 2 dots or arranging them to enlarge them to an integral multiple is further added. The size of the characters becomes rich.

FIG. 2 is a printing example of the character processing device according to the present invention.
FIG. 2A shows an example of printing with the first character font 106,
FIG. 2B is an example of printing with the second character font 109. In this example, the first character font 106 has a matrix size of 16x16 dots, and the second character font 109 has a matrix size of 24x24 dots. 2 (c), (d)
Is a font in which the first and second character fonts are each 2 dots vertically and horizontally, and a total of 4 dots are ORed to reduce it to 1/4. Similarly, FIGS. 2 (e) and 2 (f) are obtained by overlapping the first and second character fonts in the horizontal direction by 2 dots each and enlarging in the horizontal direction.
2 (g) and 2 (h) are enlarged in the vertical direction. FIGS. 2 (i) and 2 (j) are enlarged vertically and horizontally.

〔The invention's effect〕

As described above, according to the present invention, at the time of reduced printing, printing is performed using the display font set, so reduced size printing can be performed without adding special hardware and complicated software logic. It becomes possible to execute at high speed and with good print quality.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a word processor according to the present invention. FIG. 2 is a diagram showing a printing example of the word processor according to the present invention. FIG. 3 is a diagram showing an example of a block diagram of a conventional word processor. 101 …… CPU 102 …… Keyboard 103 …… Display device 104 …… Printer 105 …… External storage device 106 …… First character font 107 …… VRAM 108 …… RAM 109 …… Second character font 110 …… Print buffer

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Claims (1)

[Claims] 1. A character processing device having font data accessed according to character data and display means for displaying according to the contents of the font data, wherein the font data is divided into a plurality of font sets having different dot matrix sizes. A display control unit configured to display using only a specific font set that is not the maximum size among the plurality of font sets, and generate print data using the plurality of font sets including the maximum size font set. And a reduced print control means for generating reduced print data by using the specific font set used for display as it is.