JPS6049423A - Character processor - Google Patents

Abstract

PURPOSE:To eliminate the need for mode switching done by a key input operator by switching automatically the operation to a mode equal to the mode of a character where a cursor is positioned in case a key input is carried out after a shift of the cursor. CONSTITUTION:Various keys of KATAKANA (square form of Japanese syllabary), HIRAGANA (Japanese syllabary), etc. are arranged on a keyboard 5 to set various keys and modes for indication of the cursor shift. When a cursor shift key is pushed, the contents of a cursor register CR in an RAM14 are rewritten by a prescribed procedure in response to the type of the key. Then the cursor is shifted on a screen of a CRT device 8. If the cursor is positioned at HIRAGANA, for example, a mode register MODR in the RAM14 is changed to a HIRAGANA mode regardless of the preceding mode. Thus it is possible to eliminate the need for mode switching done by a key input operator.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a character processing device that performs character processing such as creating, editing, or proofreading a document using an input device such as a keyboard while viewing an output display screen such as a CRT display. .

[Prior Art] Conventionally, in this type of character processing device, for example, Japan J.
If it is necessary to correct or modify characters while creating, editing or proofreading a document using a word processor, etc., move the cursor to the position of the character you want to correct or modify, and then follow the predetermined operating procedure. By using key human power according to the instructions, it was possible to make corrections and corrections such as rewriting or adding characters.

However, in such a conventional device, for example, j':
If you want to correct a single character, and the current mode is Hiragana and the cursor should be moved to Katakana mode, press the ``Katakana'' key etc. to set it to Katakana mode, and then input it in sequence. Corrections were made manually using the letter keys, etc. As described above, in the conventional apparatus, when it is necessary to change the mode when correcting or correcting a document, it is troublesome for the key operator to manually set the mode each time.

``Purpose of the present invention'' In view of the two points, when moving the cursor and manually pressing the keys, the present invention automatically switches the mode to the same mode as the mode of the character where the cursor is located. It is an object of the present invention to provide a character processing device which eliminates mode yJ change by a manual key operator.

[Failure to implement] The present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an example of the configuration of the character processing device of the present invention, where 1 is a microprocessor, which performs calculations and logical judgments for character processing, and connects to these buses via /Hess 2 to 4. Control each connected component. 2 is an address bus which specifies the address of each person's output memory. Further, 3 is a data bus, which is a bidirectional bus used for transferring various data. Reference numeral 4 denotes a control path, which is used for transmitting information such as reading and writing of each memory, reception of interwoven data, data set timing, and the like.

Furthermore, 5 is a keyboard, on which various keys such as alphabet keys and hiragana keys are arranged as shown in FIG. 21, and 6 is a keyboard controller. The data entered manually by the keyboard 5 is encoded by the keyboard controller 6, and the interlab toy No. 41 is sent to the control path 4.

Next, 7 is a CRT controller, and the CRT % position 8. Character generator 8, refresh memory l
0 and the refresh memory controller 11. Further, the CRT device 8 can display a display similar to a normal television receiver. The character generator 8 sequentially outputs the number turns of the line of the character pattern based on the code such as the character code and the line address of the character pattern. The refresh memo 1JlO+i stores the character code to be displayed on the CRT device 8, and repeatedly outputs the character code yi in response to display instructions from the CRT controller 7. The refresh memory controller IX operates the above-mentioned refresh memory cycle and microprocessor sensor for CRT display in response to the instructions from the CI'tT controllers 7 and others.
Controls writing and reading of data from.

Roughly speaking, 12 is a read-only memory, l/X so-called ROM.
The control procedure related to the present invention can be refreshed and stored, and various processing procedures can also be stored. Also,
13 is a controller for the ROM 12; Reference numeral 14 denotes a random access memory, so-called RAM, which is used for temporary storage of various data, a register INI)R that stores key signals input manually from the keyboard 5, a register CR1 that stores the cursor position, and Hiragana mode or Katakana mode 751. A mode register M that stores the mode type such as 1, )l ± English capital symbol or English small symbol.
DIIR etc.). Number 15 is RAM
There are 14 controllers.

The character processing device of the present invention, which is comprised of the above-mentioned components 1'-, 15, is operated by input data from the keyboard 5, and performs various character processing according to control procedures stored in the ROM 12 according to the input data. IjIJ works. The keyboard 5 shown in Fig. 2 includes keys for instructing cursor movement, such as '←゛, '→°', and 'Screen up', as well as katakana, hiragana, and art university symbol keys for setting the mode. There are various keys such as

Processing operations such as document creation, editing, proofreading, etc. using the character processing device of the present invention having each of the above-described configurations are no different from the commonly used methods, so a description thereof will be omitted. However, 1q only regarding processing operations associated with cursor movement according to the present invention.

I will clarify.

First, there are the various keys used to move the cursor, such as °°Screen up'' and 'Cursor top'.
When a key such as ``Forward'' or ``Backward'' is pressed by a key operator, the register IN in RA old 4 is
It can be easily identified by determining the contents of the DR. Next, after these cursor movement keys are pressed, the contents of the cursor register OR (not shown) in the RAM 1A are rewritten according to a predetermined procedure according to the type of the cursor movement key, and the screen of the CRT device δ8 is Move the cursor above.

Next, determine whether the character where the cursor is located is hiragana, katakana, uppercase letters, small numerals, or special codes such as blank code or space code without mode setting from the □ character need. If the character code has some mode, for example, the character code is represented by the JIS code '2422'.
”, it means “a”, and this “a”
Since is a hiragana character, the mode to which the character belongs is converted into some internal code that can be identified by the microprocessor 1 and stored in the mode register MOOR (not shown) in the RAM 1A.

After this mode conversion process, the contents of the mode register MOOR described above will continue until the cursor movement key is pressed again or a mode setting key such as the "Hiragana" key or the "English capital letter" key is pressed. do not change,
A series of character processing such as document creation, editing, or proofreading is performed based on the mode stored in the ODR in the mode register.

In this example, when the cursor movement key is pressed, only the contents of the mode register MODH are changed to I5 to perform character processing. By incorporating an LED (light emitting diode) into the top of the key to light it up, or by displaying the mode on a display surface such as the CR7 screen, the current key manual mode can be easily recognized by the key manual operator. It is also possible to further improve character input efficiency.

Furthermore, the contents of the mode register will not be rewritten even if the cursor movement key is pressed, but the contents of the mode register will be rewritten only when the character key is pressed after the cursor movement key. ROM
This can be easily achieved by rewriting the contents of 12 and changing the processing procedure, and in this case there is an advantage that the processing time can be shortened.

Moreover, in this example, the mode of the character code at the position after the cursor is moved is determined, but it is not the mode of the character where the cursor is located, but the adjacent characters to the left, right, above, and below of that character. If it is possible to match the mode, there is an advantage that characters can be inserted without changing the mode at all. Furthermore, it is clear that functions similar to this example can be achieved using input devices other than the keyboard.

[Effect] As explained above, according to the present invention, when a character is corrected by pressing a cursor movement key to move the cursor to a desired location, the mode of the character at the cursor movement position is adjusted. Even if the mode of the character after moving the cursor is different from the mode that was set before moving the cursor, the manual key operator will be able to The effect is that the mode can be changed without pressing the mode change key in the same input mode as the mote, and as a result, operability such as usability is improved and work time is shortened.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of the structure of the character processing cylinder of the present invention, and FIG. 2 is a plan view showing an example of the layout and structure of the keyboard shown in FIG. 1.0. Microprocessor, 5... Keyboard, 8... CRT, 12... Read only memory (R'OM), 14...
・Random access memory (RAM) ・Patent applicant Canon Corporation

Claims (1)

[Claims] Input means for inputting information such as characters; input mode switching instruction means for instructing switching of input modes; cursor instruction means for instructing movement of a cursor; a display means for displaying a cursor, and an input mode for automatically switching the input mode to a mode of information such as IT characters at the position of the cursor after the movement when the cursor is moved by the cursor movement instruction means; 1. A character processing device comprising a switching control means. (Margin below)