Invention Grant
- Patent Title: Electronic watch
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Application No.: US16364612Application Date: 2019-03-26
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Publication No.: US11656580B2Publication Date: 2023-05-23
- Inventor: Shogo Kimura , Akinari Takada
- Applicant: CITIZEN WATCH CO., LTD.
- Applicant Address: JP Nishitokyo
- Assignee: CITIZEN WATCH CO., LTD.
- Current Assignee: CITIZEN WATCH CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP 2018059347 2018.03.27 JP 2019042178 2019.03.08
- Main IPC: G04C10/04
- IPC: G04C10/04 ; G04C3/16

Abstract:
An electronic watch includes a power generating mechanism; a battery that is charged with power generated by the power generating mechanism; hands that include a second hand; a driving source that rotates the hands; a driving circuit that drives the driving source with power supplied by the battery; and a control circuit that controls the driving circuit. The control circuit executes a first stopping operation for stopping the driving circuit and the control circuit in a power saving mode for suppressing power consumption and when a first determination time elapses without any power being generated by the power generating mechanism. The control circuit executes a second stopping operation for stopping the driving circuit and the control circuit in the power saving mode and when a second determination time elapses while a voltage of the battery is at a level equal to or lower than a predetermined level.
Public/Granted literature
- US20190302699A1 ELECTRONIC WATCH Public/Granted day:2019-10-03
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