PROXIMITY SENSOR AND OPERATING METHOD THEREOF
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United States of America Patent
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Issued Date -
May 15, 2014
app pub date -
Nov 6, 2013
filing date -
Nov 9, 2012
priority date (Note) -
Abandoned
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Abstract
A proximity sensor includes a proximity sensing unit and a signal processing unit. The proximity sensing unit detects whether an object to be detected is close by to obtain a measured value. The signal processing unit compares the measured value with an initial noise cross-talk value to determine whether the initial noise cross-talk value should be updated. If the determined result of the signal processing unit is no, the signal processing unit compares the measured value with a default value to determine whether the object to be detected is located in a detection range of the proximity sensing unit.
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