| 摘要 |
PROBLEM TO BE SOLVED: To discriminate which one of a plurality of simultaneously activated keys in a keyboard based on capacitive sensors is a key intended for selection. SOLUTION: Keyboard keys are preferentially selected as the user intended key based on their positions within the keyboard. Thus a key which is frequently wrongly activated when a user selects another key, e.g., because the key is adjacent to the intended key and the user normally passes his finger over it while approaching the desired key, can be suppressed relative to the desired key based on their relative positions. For example, keys may be associated with predefined rankings according to their position within the keyboard and in use keys are preferentially selected according to their rankings. Alternatively, signals from the keys may be scaled by weighting factors associated with their positions, and a key may be selected according to the weighted signals. COPYRIGHT: (C)2008,JPO&INPIT
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