| 摘要 |
PROBLEM TO BE SOLVED: To provide a keyboard wherein positions of keys are easy to be discriminated by a visual handicapped person without reducing the size of a key, without reducing sizes of characters or the surface of a key top, and without increasing kinds of the keys. SOLUTION: When pushing down a function key 12, a visual handicapped person can sense a projection 15 by touch of a finger, and can easily find the key 12 with a position of the projection 15 leading the finger to the key. When pushing down an Alt key 13, a finger senses the shape of a projection 16 and the visual handicapped person can easily find the Alt key 13. COPYRIGHT: (C)2004,JPO
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