Motion sensor apparatus having a plurality of light sources
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United States of America Patent
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May 22, 2018
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N/A
app pub date -
Apr 8, 2014
filing date -
Apr 26, 2013
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Abstract
A motion sensor device according to an embodiment of the present disclosure includes an image sensor and LED light sources. Using three images captured by the image sensor when only the LED light source is turned ON, when only the LED light source is turned ON, and when only the LED light source is turned ON, respectively, the motion sensor device estimates the distance to an object based on the luminance ratio of the object.
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