DETECTION DEVICE
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Nov 25, 2024
filing date -
Nov 25, 2024
priority date (Note) -
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Abstract
According to an aspect, a detection device includes: an optical sensor; a light source configured to emit light to the optical sensor; a detection signal amplifying circuit configured to convert a variation of current supplied from the optical sensor into a variation of voltage; and an analog-to-digital (A/D) conversion circuit configured to convert an output voltage signal after being converted into the voltage variation into a digital detection value. The A/D conversion circuit is configured to limit the detection value to a maximum digital gradation value or a minimum digital gradation value when the light source is off.
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