ELECTRONIC WATCH AND METHOD FOR CONTROLLING ELECTRONIC WATCH
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United States of America Patent
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Issued Date -
Jan 7, 2021
app pub date -
Jul 2, 2020
filing date -
Jul 3, 2019
priority date (Note) -
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Abstract
An electronic watch includes a motor including a coil, a driver controlled to an ON state for supplying a driving current to the coil and an OFF state for not supplying the driving current, a driver controller configured to control the driver to the ON state or the OFF state depending on a value of a current flowing through the coil, and a polarity switcher configured to switch a polarity of the driving current when a prescribed condition is satisfied after detecting that an ON time, which is a duration of the ON state of the driver controller, reaches a maximum.
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