发明名称 HAND POSITION DETECTION METHOD AND POSITION CORRECTION DEVICE FOR WAVE CORRECTION CLOCK
摘要 PROBLEM TO BE SOLVED: To provide a hand position detection method and position correction device for wave correction clock capable of indicating the present time and detecting and correcting the hand position. SOLUTION: A wave correction clock obtains detection signal indicating hand position by the operation of gears of a second hand drive means 6 and a minute hand drive means 8 for indication correction. To obtain the detection signal, a second hand is terminated for a while. The shielding of the detection light from the luminous element of the detection means by the gear of the second hand drive means 6 is avoided and so a state easily detecting the positions of hour hand and minute hand from the operation of the gears of the minute hand drive means 8 is realized.
申请公布号 JP2001159688(A) 申请公布日期 2001.06.12
申请号 JP19990341322 申请日期 1999.11.30
申请人 RHYTHM WATCH CO LTD 发明人 KABE HIROSHI
分类号 G04C3/14;G04G5/00;G04R20/00 主分类号 G04C3/14
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