Invention Grant
- Patent Title: Electronic timepiece
- Patent Title (中): 电子钟表
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Application No.: US13083909Application Date: 2011-04-11
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Publication No.: US08714812B2Publication Date: 2014-05-06
- Inventor: Nobuhiro Aoki
- Applicant: Nobuhiro Aoki
- Applicant Address: JP Tokyo
- Assignee: Casio Computer Co., Ltd.
- Current Assignee: Casio Computer Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Amin, Turocy & Watson, LLP
- Priority: JP2010-091090 20100412; JP2010-091111 20100412
- Main IPC: G04C9/00
- IPC: G04C9/00

Abstract:
Disclosed is an electronic timepiece, comprising: a second hand and a minute hand; a stepping motor which performs a stepping drive of the hands; a rotating body which includes a target section, and rotates with the second hand; a detection section which detects an existence of the target section; a detection control section which makes the detection section operate by every rotation period, to make the detection section detect the existence of the target section at a first timing and at a second timing; a hand position counter which counts estimated positions of the hands based on the number of drive times of the stepping motor; a counted value holding section capable of temporarily holding a value of the hand position counter; a counted value saving section which makes the counted value holding section hold the value; and a counted value correcting section which corrects the value.
Public/Granted literature
- US20110249538A1 ELECTRONIC TIMEPIECE Public/Granted day:2011-10-13
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