| 摘要 |
PURPOSE: A data input device is provided to improve input ability and reduce an occupied area in the data input device by arranging a character board and selecting elements in circular shape, thereby inputting various characters without confusion. CONSTITUTION: A plurality of character arrangement groups(31) are radially arranged, each having a radial center, and characters are arranged on each arrangement in accord with lines expanded from the radial center. A character arrangement selecting part(32) is formed to select one arrangement of the plurality of character arrangement groups(31). A character selection input part(33) is radially arranged, having a plurality of selection positions in accord with the lines to select any one character of characters arranged in the character arrangement selected by the character arrangement selecting part(32).
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