发明名称 Electronic equipment
摘要 To provide an electronic equipment having a built-in electronic compass that detects terrestrial magnetism using a magnetic sensor, which is drivable with efficiency, and displays a compass direction (north). In this electronic wrist watch, a comparison means compares a detection value obtained by the first detection with a detection value obtained by the second detection, for instance. The reproducibility judgment means judges whether there exists reproducibility using a result of the comparison. In the case where there exists reproducibility, a pulse width setting means sets a short pulse width for a magnetic field. This makes it possible for a reset means to reset a magnetic sensor using electromagnetic energy that is required to reset the magnetic sensor. <IMAGE>
申请公布号 EP1291618(A2) 申请公布日期 2003.03.12
申请号 EP20020256113 申请日期 2002.09.03
申请人 SEIKO INSTRUMENTS INC. 发明人 KATO, KAZUO
分类号 G01C17/30;G01C17/32;G04B47/06;G04G99/00;(IPC1-7):G01C17/30 主分类号 G01C17/30
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