Electronic timepiece and indicator position detection method
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United States of America Patent
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Oct 31, 2023
Grant Date -
Apr 16, 2020
app pub date -
Oct 15, 2019
filing date -
Oct 16, 2018
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An electronic timepiece that shortens the time from starting to completing indicator position detection. The electronic timepiece 1 an indicator 11; an actuator 12 that drives the indicator 11; a light emitter 21; a photodetector 22 that detects light emitted from the light emitter 21 selectively when when the indicator 11 is at a reference position; and a control circuit 35 that executes a first mode to drive the indicator 11 continuously in one direction until the indicator 11 is detected while the light emitter 21 is emitting, and a second mode to alternately drive the indicator 11 and drive the light emitter 21 to emit to detect the indicator 11 at the reference position after the photodetector 22 detects light in the first mode and the indicator 11 has past the reference position.
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