JPH0398115A - Sentence processor - Google Patents

Abstract

PURPOSE:To omit the patterns of 'en' characters and to reduce the character pattern data by printing the 'en' and 'em' characters with use of the same character pattern. CONSTITUTION:When a character is inputted from an input means, a character code generating means 2 produces a code in response to the input character. This character code is directly stored in a character code storage means 4 as long as no instruction of an 'en' character is received from the means 1. If the instruction of an 'en' character is received, the information on the 'en' character is added to the character code and stored in a character code storage means 4. A print head control means 9 changes the shift pitch of a print head of a print means 8 into 1/2 shift pitch applied for the print shift of an 'em' character in order to print the transferred character pattern in the 'en' characters only when a detection means 6 detects the information on the 'en' characters. Thus it is possible to print both 'em' and 'en' characters with a single character pattern corresponding to a single character. As a result, the patterns of 'en' characters can be omitted and the character pattern data can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field This invention relates to a text processing device that can print created text on paper, and in particular to a text processing device that can print created text on paper, and in particular, uses one character pattern to print full-width characters and half-width characters. 2. Description of the Related Art Related to Text Processing Devices Capable of Printing Text Conventionally, text processing devices of this type are configured to print text on paper using a dot matrix serial printer. Then, for the same character, full-width and half-width characters are printed using a full-width character font and a half-width character font, respectively. In this case, the half-width character font has half the number of dots in the horizontal direction of the full-width character font.

(C) Problems to be Solved by the Invention However, with the above configuration, printed half-width characters are composed of half the number of dots as full-width characters, so the printing quality is inferior to that of full-width characters. Ta. Therefore, when printing Kanji characters with a large number of strokes in half-width characters, the printed Kanji characters are difficult to read.

Furthermore, since fonts for full-width characters and half-width characters are required, it is necessary to use a storage device with a large capacity.

The present invention has been made in consideration of the above circumstances, and aims to provide a text processing device that can print full-width characters and half-width characters using one character pattern (font).

(2) Means for solving the problem FIG. 1 is a block diagram showing the configuration of this invention,
In the figure, the present invention includes an input means 1 for inputting various instructions including instructions for characters and half-width characters and instructions for printing, and a character code for generating a character code corresponding to a character input manually from the input means 1. generation means 2; addition means 3 for adding half-width character information to the character code generated by the character code generation means 2 when a half-width character instruction is input from the input means 1; and character code generation means 2. character code storage means 4 for storing the character code and the character code to which half-width character information has been added by the addition means 3;
A reading unit 5 reads a character code from the character code storage unit 4 when a printing instruction is input from the input unit 1, and detects information on half-width characters added to the character code read by the reading unit 5. a detecting means 6; a character pattern generating means 7 for generating a character pattern corresponding to the character code read by the reading means 6; and a printing means 8 having a print head and printing dot matrix characters on paper. , when the detection means 6 detects information on half-width characters, the printing means is operated to print half-width characters according to the character pattern generated by the character pattern generation means 7 corresponding to the character code to which the information is attached. This text processing device includes a print head control means 9 that changes the movement pitch of the print head to 1/2 of the movement pitch when printing full-width characters.

As the input means 1 in this invention, a keyboard having character keys such as kana and alphabet keys and function keys for inputting various instructions can be used.

When each character key is pressed, a corresponding key signal is output to the character code generating means 2.

The character code generating means 2 includes, for example, an encoding circuit that encodes an input key signal and outputs a character code, and an input buffer that temporarily stores the character code output from the encoding circuit. The character code is for one character input from human power means 1! There is no distinction between full-width and half-width characters.

As the character code storage means 4, a rewritable RA
A floppy disk device, a hard disk device, etc. that use M or a floppy disk as a storage medium can be used.

The adding means 3, the reading means 5, the detecting means 6 and the print head control stage 9 may be constructed using a microcomputer.

The half-width character information added to the character code by the addition means 3 is as follows:
For example, a flag or 2-bit information may be used. This information makes it possible to identify whether the character corresponding to one character code is a full-width character or a half-width character. This identification is performed by the detection means 6 detecting information of half-width characters.

As the character pattern generating means 7, for example, a character generator known in the art can be used. The character pattern generating means 7 may generate only the character pattern of full-width characters corresponding to the character code.

The printing means 8 may be composed of a print head for printing characters in a dot matrix and its driving circuit. The print head of the printing means 8 may be either an impact type having a printing wire or a non-impact type used in inkjet printers, thermal printers, and the like.

(e) Operation When a character is input from the human power means 1, the character code generating means 2 generates a corresponding character code.

Manpower means here! If there is no instruction for half-width characters, the generated character code is stored as is in the character code storage means 4, and if there is an instruction for half-width characters, the addition means 3 adds half-width character information to the character code and converts it into a character. The code is stored in the code storage means 4.

The reading means 5 reads out the character code stored in the character code storage means 4 when a printing instruction is input from the input means 1. The read character code is transferred to the character pattern generating means 7 and the detecting means 6. As a result, the character pattern generation means 7 generates a character pattern corresponding to the character code and outputs it to the print head control means 9. On the other hand, the detection means 6 detects whether half-width character information is added to the read character code.

The print head control means 9 adjusts the movement pitch of the print head of the printing means 8 when printing full-width characters in order to print the transferred character pattern in half-width characters only when the detection means 6 detects information on half-width characters. The movement pitch is changed to 172. As a result, full-width characters and half-width characters can be printed with one character pattern corresponding to one character.

(F) EXAMPLES Hereinafter, examples of the present invention will be described in detail with reference to the drawings, but the present invention is not limited to the following examples.

In Figure 2, 1! The keyboard is equipped with character keys and various function keys.

The function keys include a print key for inputting printing instructions and a half-width key for inputting instructions for half-width characters. l
A CRT 2 displays characters and information input from the keyboard l1. and keyboard 11 and CRTl 2
are respectively connected to the control unit l3.

The control unit I3 is mainly configured with a microcomputer that executes a control program stored in a program memory I4. The control unit 13 includes an encoding circuit that generates a character code in response to a character input to the microcomputer from the keyboard 11, an input buffer that temporarily stores the character code, a CRT controller for controlling the CRT 12, and a printing unit 15. It is configured to include an interface circuit for data communication with.

The printing unit 15 includes a print head for dot matrix, a drive circuit for driving the print head, and the like.

(2) A text memory 6 sequentially stores character codes entered manually from the keyboard 11 and character codes to which half-width character information is added in the order in which they are input.

17 is a character generator in which character patterns of full-width characters such as kanji and kana characters are stored in correspondence with character codes. For example, the character pattern is 52 dots x 52
Formed by dots.

Next, the operation of this embodiment will be explained with reference to FIG.

First, prior to printing, characters are input from the keyboard IN. The control unit 13 converts key signals from the keyboard 1l into character codes, stores them in the text memory l6, and displays characters corresponding to the character codes on the CRT 12. Normally, characters are input as full-width characters, but when instructions for half-width characters are input using the half-width keys from the keyboard 11, the controller 13 adds half-width character information, such as a flag, to the character code corresponding to the input character. and sentence memory l6
Store in.

Next, when the print key on the keyboard 11 is pressed and a print instruction is input, the control unit l3 reads out the character code stored in the text memory l6 (step 100). The control unit 13 detects whether a flag is set on the read character code, and determines whether the character code is to be printed in full-width or half-width (step l01). Step L
If ot determines that the flag is not set, the character corresponding to that character code will be printed in full-width.
The control unit l3 controls the print head of the print head I5 at 1/180 (
A control signal sent at a pitch (inch) is output to the print head 15. At the same time, the control section 13 reads out a character pattern corresponding to the read character code from the character generator 17 and transfers it to the printing section 15.

The printing unit l5 operates the print head 171 according to the above control signal.
It is sent at 80 pitches (step 102), and the characters of the sent character pattern are printed (data printing) (step 103). When printing of one character is completed in step 103, the control unit l3 determines whether a character code remains in the text memory l6 (step 104), and if so, executes step l00 again.

If the flag is set on the character code read in step lOO, that is, if it is determined in step 101 that the character code is not full-width, the control unit 13 controls the print head of the printing unit 15 to print half-width characters. A control signal sent at a pitch of 1/36G (inch), which is 1/2 of the pitch for printing, is output to the printing unit 15. At this time, the control section 13 reads out the character pattern corresponding to the read character code with the flag set from the character generator 17, and transfers it to the printing section 15. The printing unit 15 feeds the print head at a pitch of 1/380 according to the input control signal (step 105), and prints the characters of the sent character pattern in half-width characters (data printing) (step 106). In other words, in this case, the sent character pattern is full-width, but the feed pitch (movement amount) of the print head is 1/2 of that for full-width, so the size of the printed characters is half-width. Become.

Since the same character pattern as in the case of full-width characters is used, the number of dots in the horizontal direction of the printed characters is the same as the number of dots of the characters printed in full-width characters.

(G) Effects of the Invention According to this invention, since full-width characters and half-width characters are printed using the same character pattern (font), character patterns for half-width characters are no longer necessary, and character pattern data (
font data) can be reduced, and the capacity of the character pattern generating means can be reduced. Furthermore, since half-width characters and full-width characters are printed with the same number of dots, the printing quality of half-width characters can be improved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is a block diagram showing the configuration of an embodiment of the invention, and FIG. 3 is a flowchart explaining the operation of the embodiment. l...Input means, 2...Character code generation means, 3...Addition means, 4...Character code storage means, 5...・Reading means, 6...
. . . detection means, 7 . . . character pattern generation means, 8 . . . printing means, 9 . . . print head control means. 3rd ward

Claims (1)

[Claims] 1. Input means for inputting various instructions including instructions for characters and half-width characters and instructions for printing, and character code generation means for generating character codes corresponding to characters input from the input means. and an addition means for adding half-width character information to the character code generated by the character code generation means when an instruction for half-width characters is input from the input means, and a character code generated by the character code generation means and the addition means. a character code storage means for storing a character code to which half-width character information is added; a reading means for reading the character code from the character code storage means when a printing instruction is input from the input means; a detection means for detecting half-width character information added to the character code read by the reading means; a character pattern generation means for generating a character pattern corresponding to the character code read by the reading means; A printing means that prints characters in a matrix on paper, and a character pattern generated by a character pattern generating means corresponding to the character code to which the information is attached when the detection means detects half-width character information. A text processing device comprising: print head control means for changing the movement pitch of a print head of a printing means to half the movement pitch for printing full-width characters in order to print half-width characters.