Electronically controlled mechanical timepiece, control method of an electronically controlled mechanical timepiece, and electronic timepiece
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United States of America Patent
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Jul 4, 2023
Grant Date -
N/A
app pub date -
Jan 6, 2022
filing date -
Jun 4, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A timepiece includes an arithmetic circuit, a first switch that controls connection of a temperature compensation table storage to a power supply circuit, and a second switch that controls connection of a device-difference compensation data storage to the power supply circuit. The arithmetic circuit calculates a compensation amount based on a temperature measured by a temperature detector, a temperature compensation data, a device-difference compensation data, and outputs to a frequency adjustment control circuit and a theoretical regulation circuit. The first switch is controlled to the connect state during a first power supply connection period including a temperature compensation data read period. The second switch is controlled to the connect state during a second power supply connection period including a device-difference compensation data read period.
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