JPS60105030A - Character processor - Google Patents

Abstract

PURPOSE:To reduce the labor of an operator when a shift mode is changed for desired characters by attaining the conversion of the shift mode for an indicated character among the character information fed in a shift mode. CONSTITUTION:When a HIRAGANA (cursive form of Japanese syllabary) or KATAKANA (square form of Japanese syllabary) conversion key is pushed on a keyboard KB, it is decided whether the character on a cursor is a KANA charactor or not. The head bit of a character code is set at 0 in a HIRAGANA conversion mode and then at 1 in a KATAKANA conversion mode respectively. The codes of using characters all consist of binary 8 bits, and the least significant bit is increased successively from 1 for both HIRAGANA and KATAKANA. For a KATAKANA character code, 1 is set at the most significant bit of the code of the corresponding HIRAGANA. Therefore it is possible to discriminate the HIRAGANA from the KATAKANA according to 1 or 0 of the most significant bit. Then a cursor register CREG receives +1 and the cursor is advanced by a digit for display at a display device DP.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field] The present invention relates to a character processing device capable of inputting data in a plurality of shift modes.

[Prior Art] Conventionally, in character processing devices that can input in multiple shift modes, for example, character processing devices that can input flat names and katakana, the same key is used for characters with the same reading for flat names and katakana. Therefore, when inputting a plain name or katakana, it was necessary to operate the shift key in advance to change to the plain name or katakana character type. As a result, when creating a document containing a mixture of plain name and katakana, it is necessary to operate the shift key frequently, and if you forget to operate the shift key or make a mistake, input it again using the correct character J11i. The drawback was that it had to be redone.

[Object] An object of the present invention is to provide a character processing device that can convert the shift mode of a specified character among character information input in a plurality of shift modes. Another object of the present invention is to provide an operating base for correcting characters input with an incorrect shift mode, or for converting the shift mode for necessary characters after inputting a character string in a fixed shift mode. The goal is to reduce the labor involved.

[Explanation] An embodiment of the present invention will be described below with reference to the drawings.

First, the concept of the present invention is shown in FIG. For example, if we consider a case where there is a plain name or katakana as a sheet mode, the character specified by a position indicating means such as a cursor that indicates the position with respect to a character string input by a character input means is converted into a plain name or katakana. It is something that converts.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. KB
Use the keyboard to input character strings, symbols, numbers, cursor movement information, shift mode conversion information, etc. CPU
The central processing unit performs various calculations, judgments, controls, etc. R
OM is a read-only memory, as shown in Figures 5 and 6 (a).
The controller 11 "(
program and other control programs are stored. RAM is random access memory. Of these, CBUF is a character buffer in which character information input from the keyboard KB is stored. Further, CREG is a cursor register, which indicates an address in the character buffer CBUF by interlocking the cursor, and the address is updated using a cursor movement key, which will be described later. CG is a character generator that stores fonts corresponding to codes for each character, symbol, etc. The DP is a display device that visually displays input characters, a cursor, and the like. DPC is a display controller.
Performs display DP sub-control. BL is a pass line that connects each of the above devices and transmits information.

FIG. 3 is a schematic diagram of the key tops of the keyboard KB. Among these, KB, 7 is a group of kana symbol keys, which is a group of keys for inputting symbols such as ``, j ``.'' in addition to characters. KBI and KB2 are cursor movement keys; KBI moves the cursor to the left and KB2 moves the cursor to the right.

KB3 and KB4 are shift mode conversion keys; KB3 converts to plain name, and KB4 converts to katakana. Details will be described later. KB5 and KB6 are shift mode specification keys, and K'B
5 specifies the shift mode as a plain name, and KB6 specifies the shift mode as katakana. To input characters, first specify the shift mode using the shift mode designation key KB5 or KB6, and then press the kana or symbol key.

The operation of the embodiment of the present invention under the above configuration will be explained by the display example shown in FIG. 4, the flowcharts shown in FIGS. This will be explained with reference to a code correspondence diagram.

When the character processing device of the present invention is powered on, step S in FIG.
1 to maintain the state of waiting for key personnel. If any key is input, the key is determined in step S2, and the process branches to step S3, step S4, step S5, and step S6.

When the kana/symbol key is pressed, the process advances to step S3. In step S3, the code of the input character key is stored in the random access memory RAM as the character /<ffa CBUF.
, and adds 1 to the cursor register CREG. Thereafter, the contents of the character buffer CBUF and cursor register CREG are displayed on the display DP via the character generator CG and the display controller DPC. When the cursor movement key KBI or KB2 is pressed, the process proceeds to step S4, where the contents of the cursor register CREG are subtracted or added, and then displayed on the display DP.

When the hiragana conversion key or the katakana conversion key is pressed, the process proceeds to step S5 or step S6, respectively. Detailed flowcharts of step S5 and step S6 are shown in FIGS. 6(a) and 6(b). In step S5,
First, in step S5.1, it is determined whether or not the character on the cursor is a kana.
Proceed to. Step S5.2 sets the first bit of the character code to O.

The character code will be explained here. What is shown in FIG. 7 is an example of a character code correspondence table. The character codes here are all binary 8-bits, and the plain names are "A" and "I".
"U"......The code number is rooo
The format is such that the number is increased one by one starting from oooolJ. On the other hand, the katakana character code has a format in which the most significant bit of the code of the corresponding flat name character is set to 1,
Plain names and katakana are clearly distinguished depending on whether this most significant bit is 1 or 0.

Since the code system is as described above, step 5502
This means that it was converted to a flat name in .

After that, in step s5.3, cursor register 7! , CREG is calculated and displayed in step 55-4. Now, if the character on the cursor is a kana,
It becomes the plate name code, the plate name is displayed, and the cursor moves one digit to the right.

FIG. 6(b) is the reverse of hiragana conversion, in which the first bit of the character code is set to 1 in step S6.2.

For example, suppose that the character key and cursor movement key described above are used to input "Amerikajin" as shown in FIG. 4(a), and the cursor is brought to the beginning of the sentence. here"
When you want to convert the word "Amerika" into katakana, press the katakana conversion key KB4 on the keyboard shown in Figure 3. Then m
5b The flowchart branches to step S6. At step S6.1, the character "A" on the cursor is determined to be a kana, and the process advances to step S6.2. In Stella 7"S6.2, by setting 1 to the first bit of the character code of "a", it is converted to the character code of "a". After this processing, the process proceeds to step S6.3, where the cursor register CREG is added by 1 and the cursor is set to 1.
Display is performed in advance step S6.4. As a result, "a" becomes "a" as shown in FIG. 4(b), and the cursor is placed under "me". Once this process is completed, the process returns to step S1.

On the other hand, when you want to convert "ji j" to "ji" as shown in FIG. 4(c), by operating the plate name change key KB3 in FIG. The process is carried out as shown in the flowchart shown in Figure 4(b), and "shi" is changed to "ji" as shown in Figure 4(a).
, and the cursor advances by one.

[Other Embodiments] Note that the display device DP in the above-described embodiments may be any device that visually displays, such as a liquid crystal display or a CRT. Also, the character code is 2 for each character.
Although the system is set to 8 bits, the present invention will not be impaired even if it is set to 16 bits. Furthermore, although the difference in the code between the flat name and the katakana is based on the ON/OFF of the top bit, it is of course possible to make the difference in other formats.

In addition, in the embodiment of the present invention, the shift mode is set to plain name and katakana, but in addition, uppercase letters, lowercase letters, and
A key given to one key, such as +-7a;
It is clear that the present invention can be applied to symbols such as "j".Furthermore, even if the shift mode is not specified at the time of input, the desired key exists individually, and there is no shift mode specifying key, of course the present invention can be applied to symbols such as "j". The invention is applicable.

[Effects] As is clear from the above explanation, according to the present invention, there is no need to change the shift mode each time when inputting a character string containing a combination of flat name and katakana, and furthermore, it is not necessary to change the shift mode each time the character string that has been input is changed. Later on, you can sequentially change to a different shift mode character, and this effect is not limited to only characters, but also applies when multiple symbols are given to one key.

Further, according to the present invention, there are effects such as reducing the labor of the operator and shortening the input time. Furthermore, characters input using a full keyboard without a shift mode designation key can be changed to characters with a different shift mode by simply operating a key at a fixed location.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the concept of the present invention. FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention. FIG. 3 is a schematic diagram of the key tops of the keyboard. FIG. 4 is a diagram showing a display example. FIG. 5 is a flowchart of main control. FIG. 6(a) is a flowchart of hiragana conversion processing. FIG. 6(b) is a flowchart of katakana conversion processing. FIG. 7 is a character code correspondence diagram. CB U F 100 character buffer, CREG...Cursor register, KBI...Cursor left movement key, K
H2...Cursor right movement key, KH2...Hiragana conversion key, KH4...Katakana conversion key.

Claims (1)

[Claims] an input means for inputting character information of multiple shift modes;
A memory for storing character information inputted by the input means, and a position indicating means for indicating a position with respect to the character information stored in the memory, and with respect to the character specified by the position specifying means, A character processing device comprising means for converting the character into a character in a shift mode other than the shift mode of the character.