| 摘要 |
PROBLEM TO BE SOLVED: To easily, efficiently, and reliably identify a manual operation with a small consumption of energy by detecting, of sub-sets of sensors, an operating sensor in which the fluctuation of electric value is maximum by the manual operation with a finger. SOLUTION: One set of transparent conductive electrodes K, M, S, 0, E are arranged on the inner surface 24 of the glass 6 of a watch 1. The electrodes K-E are connected to an electronic circuit 23 by conductors 25-29, respectively. Each of the electrodes K-E forms one of electrodes of a series of capacitative sensors, and the other electrode of sensor is formed by the finger 32 of a user. When the user touches a prescribed zone opposed to a prescribed electrode on the outside of the glass 6, a capacitance is formed between the finger 32 and the electrode. An identifying device detects an operating sensor in which the fluctuation of capacitance (electric value) is maximum, of a sub-set formed of combination of one set of capacitative sensors. The output signal corresponding to this sensor is transmitted to a writing recognizing element to recognize a hand-written character.. |
