| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of times of key operation in input of Hiragana (cursive form of Japanese syllabary) and Katakana (Japanese syllabary). SOLUTION: Character sets of candidates for input in which the number (5) of keys in the respective directions such as the center, left, right, up and down is defined as the maximum number of characters are allocated by every one of various input character type modes such as the Hiragana, the Katakana and their voiced sonants and syllabic nasal for the respective pieces of 12 number keys such as 0 to 0, * and #. When a certain number key is depressed, an input character type mode 9, * and #. When a certain number key is depressed, an input character type mode set in the case of determination of the previous inputted character is left as it is if depression is the first time, the input character type modes are successively switched according to a predetermined order if the depression is the second time and after ward and the applicable character set of candidates for input is displayed on a picture. In this case, when a certain direction key is depressed, one corresponding character in the character set of the candidates for input is determined as the inputted character.
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