JPS6226501B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a character processing device that handles Hangul characters. Classifying the basic characters of Hangul, as shown in Table 1, Hangul has two types of compositions: consonant (C) + vowel (V) and consonant (C) + vowel (V) + consonant (C). For example, 〓 is the former and 〓 is the latter.

[Table] The present invention determines the structure of the above-mentioned Hangul characters,
A character processing device that handles Hangul characters is provided. The present invention provides a character processing device that assigns a code to each basic character, identifies Hangul characters from continuously inputted character codes, generates a character pattern corresponding to the Hangul character, and prints or displays the character pattern. . An embodiment of the present invention will be described below with reference to the drawings. Figure 1 is a diagram of a full keyboard with Hangul basic Jamo keys. ASCC1 standard 2-speed shift with Hangul mode 1
This is an example of a key layout for a 3-stage shift (Upper, Lower, Hangul) with an additional row. In this case, it cannot accommodate 51 Hangul characters, so it uses 7 vertical and horizontal compound vowels (〓, 〓, 〓, 〓, 〓, 〓, 〓) is realized by the combination of horizontal vowel key and vertical vowel key, C+V+V,
Alternatively, the key input order is C+V+V+C. Therefore, when vowels are input consecutively, logic is required to determine whether they are a single vertical/horizontal composite vowel. If you use a 4-stage shift keyboard like the Kanaful keyboard, you can arrange all 51 character keys, but of course you will need a shift switching operation. FIG. 2 is a block diagram showing one embodiment of the present invention. Reference numeral 21 is a code generator which generates the pressed Hangul alphabet code when the keyboard is in Hangul mode. 22 is a character code discrimination logic that determines whether the input character is a consonant or a vowel. For example, if it is a consonant, the bit "0" is set.
If it is a vowel, a bit "1" is sent to the register. 23 is a Jamo code register which stores the code generated in 21 for one Hangul character. 24 is a 4-bit shift register that stores the binary signal sent out from 22. 25 is a logic circuit that monitors the state of the 4-bit shift register 24 and detects that one Hangul character's worth of jamo has been input. Reference numeral 26 denotes a logic circuit that transfers the Jamo code for one Hangul character from the Jamo code register 23 to the code conversion logic 27. 28 is a memory that stores patterns corresponding to Hangul character codes; for example, if Hangul characters are composed of a 16×16 dot matrix and the character code is 2 bytes, 34 bytes are required for each Hangul character.
A register 29 stores the Hangul pattern specified by the character code, and sends it to the display 30 or printer 32. Register 24 when inputting 〓 and 〓 in Fig. 3
The state transition diagram is shown below. Since there are two types of Hangul characters, C+V and C+V+C, one Hangul character can be identified by knowing the status of each consonant and vowel of the four characters. When the upper 3 bits of the 4-bit register 24 become "010", the lowest bit becomes "0".
If so, it is a C+V+C type Hangul character, so the code “CBA” shown in FIG.
6 to the code conversion logic 27, where it is converted into the character code given to the Hangul character (in this example, "〓"). Also, if the least significant bit is "1", it is a C+V type Hangul character, so in this case, it is shown in Figure 4.41.
“BA” shown in is sent to the code conversion logic 27. The output of code conversion logic 27 is sent to pattern memory 28. The pattern memory stores character patterns corresponding to each Hangul character code in the form of a 16 x 16 dot matrix as shown in Figure 5, which is stored in the pattern buffer register 2.
9 and will be read out and printed or displayed. As described above based on the embodiments, according to the present invention, there is no need to use a space signal or the like to separate the characters each time the input of one Hangul character is completed, and the Hangul characters can be written as quickly and easily as if inputting kana characters from a standard keyboard. can be processed.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an example of a keyboard in which a third shift for Hangul is added to the standard ASC11 keyboard, Fig. 2 is a block diagram of an embodiment according to the present invention, and Figs. FIG. 5 is a state transition diagram when input is made from the keyboard, and FIG. 5 is a diagram showing an example of a dot pattern of Hangul characters. 22...Discrimination logic, 23...Register, 2
4...4-bit shift register, 25...4-bit comparison logic.

Claims (1)

[Scope of Claims] 1. A group of input keys in which characters constituting Hangul characters are arranged; a key code generating means for generating a key code corresponding to an operated key of the input key group; and the key code generating means. discriminating means for discriminating whether a key operated by a key code from is a vowel key or a consonant key; a storage means for storing the discrimination result of the discriminating means for at least four character bases; and output means for outputting Hangul characters according to the discrimination result of the discrimination means and the key code from the key code generation means.