| 摘要 |
PCT No. PCT/JP98/03570 Sec. 371 Date Apr. 12, 1999 Sec. 102(e) Date Apr. 12, 1999 PCT Filed Aug. 11, 1998 PCT Pub. No. WO99/08375 PCT Pub. Date Feb. 18, 1999In an electronic apparatus such as a timing device capable of a quick-moving operation, a detecting coil wound coaxially with a driving coil for driving a rotor is arranged, a feedback-induced voltage appearing in the detecting coil is detected by a detector circuit, and a first peak appearing first subsequent to the supply of a drive pulse and having the same polarity as the drive pulse is picked up to detect the rotation of a rotor. Based on the detected timing of the first peak, a next drive pulse is supplied, and the drive pulse is thus fast supplied while the rotation of the rotor is checked. This arrangement allows a quick-moving operation free from faulty watch hand driving to run even faster.
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