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United States of America Patent
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Feb 19, 2019
Grant Date -
Jan 25, 2018
app pub date -
Apr 17, 2015
filing date -
Apr 17, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A scanner is disclosed. The scanner includes a light source to emit light of a first color during a first turn-on period and emit light of a second color during a second turn-on period; a sensor to receive light from a scanning area, in response to the light of the first color directed to the scanning area, during a first sensing period, and receive light from the scanning area, in response to the light of the second color directed to the scanning area, during a second sensing period; and a controller to control the timing of the first turn-on period within the first sensing period and the second turn-on period within the second sensing period.
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