发明名称 Electronic apparatus with azimuth meter and azimuth measuring emthod in this electronic apparatus
摘要 An electronic apparatus with an azimuth meter, which is capable of measuring an accurate azimuth and of being miniaturized even if one or a plurality of magnetized member(s) for generating a magnetic field exist(s), is provided. Magnetic screen 10 and 11a for shielding an azimuth sensor from a magnetic field generated from a battery 3 and a stepping motor 4. Moreover, when the stepping motor 4 rests, an azimuth is measured, and rotor rest time and a direction of the magnetic field generated from a rotor 4b are predicted based on rotor rotation starting time and a direction of a driving current flowing through a coil 373, and the measured azimuth is corrected according to the predicted result. <IMAGE>
申请公布号 HK1030809(A1) 申请公布日期 2007.07.06
申请号 HK20010101735 申请日期 2001.03.12
申请人 CITIZEN HOLDINGS CO., LTD. 发明人 NORIO MIYAUCHI
分类号 G01C;G01C17/30;G04G;G04G21/02;G04G99/00 主分类号 G01C
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