JPS60157660A - Character processing device - Google Patents

Abstract

PURPOSE:To convert HIRAGANA (round form of Japanese syllabary) and KATAKANA (square form of Japanese syllabary) which have been inputted already, to KATAKANA and HIRAGANA, respectively, by providing a means for converting a character within a range indicated by an indicating means, to a character of other shift mode. CONSTITUTION:In case one key of a KANA (Japanese syllabary) and symbol key group CK is operated, a code of an inputted character key is stored in an address displayed on a cursor register CREG of a character buffer CBUT, and also ''1'' is added to the register CREG. Therefore, the contents of the buffer CBUF and the register CREG are displayed on an indicators DIS through a display controller DISC. When a range initial key AB is depressed, the contents of the register CREG are transferred to a range register HREG. When a KATAKANA converting key CC or a HIRAGANA converting key HC is depressed, a designated character is converted to KATAKANA or HIRAGANA.

Description

[Detailed description of the invention] (branch) The present invention relates to a character processing device for creating documents and the like.

In the device, since the same key is used for characters with the same pronunciation as plain name and katakana, it is necessary to switch to the required character 81 (shift mode) in advance when inputting. As a result, when creating a document containing a combination of plain name and katakana, the user must frequently press the shift key, and if the user makes a mistake, the user must input the correct character type again. was there.

(Objective) In view of the above-mentioned drawbacks, it is an object of the present invention to provide a character processing device that can convert an already input plain name into katakana, or convert katakana into a plain name. Another object of the present invention is to provide a character processing device that converts a plurality of characters at once by specifying a range of characters to be converted.

(explanation) Embodiments of the present invention will be described below with reference to the drawings.

The structure of the present invention is shown in the block diagram of FIG. 1. The keyboard is a keyboard which serves as an input terminal for inputting characters, control signals, and the like. C
PU is a central processing unit that performs various logical operations, judgments, and other controls.

The ROM is a read-only memory in which control programs and the like are stored. CBUP stores manually entered character codes in a character buffer. HREG is a range start register and stores the address of the first character to be converted into a character type in the character buffer CBUF. CPLEG is a cursor register in which a value indicating the cursor position is stored. D.I.
SC is a display controller that controls the display device DIS. D
I8 is a display device that visually displays input characters, etc. CG is a character generator that stores character patterns corresponding to character codes. BL is a pass line that connects each of the above-mentioned devices to transmit signals.

FIG. 2 shows an external view of the keyboard KB. CK is a pseudonym.
This is a group of symbol keys for inputting symbols such as ``,'' and ``.'' in addition to hiragana and katakana. CL is a cursor left movement key, and CR is a cursor right movement key, which are keys for moving the cursor to the left and right, respectively. A and B are range start keys, which indicate the start end of the conversion target range. H
C is a hiragana conversion key, which converts the character specified by the range start key or cursor into hiragana. CC is a katakana conversion key, which, like the hiragana conversion key HC, converts specified characters into katakana.

An example of operation under the above configuration will be explained. The flowchart shown in FIG. 2 is a 70-chart of the control program stored in the read-only memory I (OM). When the character processing device of the present invention is turned on, it maintains a state in which it waits for key input in step S1. When a key is pressed, key discrimination is performed in step S2, and the process branches from step S6 to step S7.If one key of the kana/symbol key group CK is operated, the process moves to step S6, and the input character key is selected. The code is stored in the address indicated in the cursor register CREG of the character buffer CBUF, and 1 is added to the cursor register CREG.Then, the contents of the character buffer CBUF and the cursor register CREG are sent to the display device DI8 via the display controller DISC.
to be displayed. If the range start key AB is pressed, the process moves to step S4. Here, cursor register CR,
The contents of BG 'f are transferred to the range register HREG. If the cursor left movement key CL or the cursor right movement key CR is pressed, the process moves to step S5, where the contents of the cursor register CREG are subtracted or added by 1, and the cursor is displayed on the display DI8. When the katakana conversion key CC or the hiragana conversion key HC is pressed, the process moves to step 86 or step S7, respectively, and the designated character is converted to katakana or hiragana through the process described later.

I will explain the character code here. FIG. 4 shows an example of character codes for hiragana and katakana.

The character code consists of 8 bits per character.

The code system is such that when the most significant bit is ``0'' it means hiragana, and when the most significant bit is ``1'' it means katakana. #This is a code system in which the lower 7 bits distinguish sounds, and the upper 1 bit distinguishes between hiragana and katakana.

CK So, from the kana/symbol group on the keyboard KB, input ``Amerikajin'' in hiragana and press the cursor left movement key CL to move the cursor below ``a''.
The display DI8 displays the information as shown in FIG. 5(a). At this time, character buffer C]3UP has the most significant bit rO
This means that it contains the letter code J. In this state, when the range start key AB on the keyboard KB is pressed, the range start process of step S4 is performed. That is, the contents of the cursor register CREG are transferred to the range start register HREG.

In this case, since the cursor is under "A", the character buffer CBUP' transfers the existence address of the code "A" to the range start registers HR, EG.

Next, press the cursor right movement key CR to move the cursor to
If you move it to the bottom of the screen, the display D will appear as shown in Figure 5(b).
Displayed on IS. If the katakana conversion key CC is pressed here, the katakana conversion process of step S6 is performed. That is, the most significant bit of the character code of the character indicated by the cursor register CRBG is set to 1 from the character indicated by the range start register HREG. Then, the display DI8 displays a message as shown in FIG. 5(0). In other words, "Amerika" becomes "America". Also, as shown in Figure 5 (d) (8) (f), if you want to convert "America" to "Amerika", use the above-mentioned Figure 5. (a), (b), and (Q), except for using the hiragana conversion key HC instead of the katakana conversion key CC at the end, can all be realized by the same key operations. That is, the hiragana conversion process in step S7 sets the most significant bit of the character code existing between the addresses of the character buffer CBU'F indicated by the contents of the range start register HRBG and the cursor register CRBG to 0.

(Other Embodiments) In the embodiments described above, the display device DI8 may be a liquid crystal display, a cathode ray tube, etc., as long as it can visually display characters, a cursor, etc., without detracting from the present invention. do not have.

Also, the character code was set to 8 binary bits per character,
Any number of bits is acceptable as long as it can distinguish between characters.

Furthermore, the difference in the code between the plain name and katakana was distinguished by the most significant bit "DJ, rIJ, but even if you use different character codes for the plain name and katakana, this 0REG... cursor register.

Inventions produce effects. Moreover, the present invention is not limited to conversion between flat names and katakana, but also conversion between colors,
Effective for converting numbers into Kanji, Arabic numerals, etc.

(Effects) As explained above, according to the present invention, it is not necessary to operate the shift mode in advance when inputting a character string containing a combination of flat name and katakana, and in addition, it is possible to eliminate the need to operate the shift mode in advance when inputting a character string containing a combination of flat names and katakana. The effect is that you can set the range later and change to another shift mode.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention. Figure 2 is an external view of the keyboard KB. FIG. 6 is a flowchart showing the control process. FIG. 4 is a diagram showing the difference between the character code katakana and the flat name. FIG. 5 is a diagram showing an example of text for explaining the operation. CBUF...Character buffer. HIFtEG--Range start register. Applicant Canon Co., Ltd.

Claims (1)

[Claims] an input means capable of inputting character strings of a plurality of shift modes; a storage means for storing characters input by the input means; an instruction means for specifying an arbitrary range of characters among the characters stored in the storage means; A character processing device comprising means for converting characters in a range designated by the designating means into characters in other shift modes.