发明名称 Electronic unit, and control method for electronic unit
摘要 In an electronic unit having a plurality of motors, a reduction in power-supply voltage is suppressed even if the plurality of motors are driven, and a difference in hand moving timing is allowed to be made inconspicuous. An electronic timepiece having a seconds motor for driving a seconds hand and an hour-and-minute motor for driving hour and minute hands, which serves as an electronic unit, moves the seconds hand and the hour and minute hands such that, when a seconds auxiliary pulse signal is output to the seconds motor at the hand moving timing of the seconds hand, control is applied in a way in which neither magnetic-field detection around the hour-and-minute motor nor the rotation detection of the hour-and-minute motor is performed at the hand moving timing of the hour and minute hands, and an hour-and-minute auxiliary pulse signal is output to the hour-and-minute motor.
申请公布号 US6327225(B1) 申请公布日期 2001.12.04
申请号 US20000622194 申请日期 2000.08.11
申请人 SEIKO EPSON CORPORATION 发明人 OKEYA MAKOTO;SHIMURA NORIAKI;KITAHARA JOJI;KOJIMA HIROYUKI;YABE HIROSHI
分类号 G04C3/14;G04G19/08;(IPC1-7):G04F5/00;G04B1/00;G06F1/04;H02P8/00 主分类号 G04C3/14
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