| 摘要 |
An input device is provided. An input device includes a plurality of input keys; a voltage setting unit; a switching unit; a detecting unit; and a control unit. When the switching unit selects one of the input keys, the control unit controls the detecting unit to detect voltages at least two times for a selection holding time where the selection of the input key is held. When the detected voltages do not vary or in a switching state where the variation is within a predetermined range, the control unit controls the switching unit to select the next input key after the selection holding time of the input key has elapsed. When the voltages detected at least two times vary or when the variation is beyond the predetermined range, the control unit sets the selection holding time of the input key to be longer than the switching state.
|
