Proximity sensor monitor
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United States of America Patent
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Oct 31, 2017
Grant Date -
Jul 2, 2015
app pub date -
Aug 14, 2013
filing date -
Aug 17, 2012
priority date (Note) -
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Abstract
The present invention generally relates to proximity sensor monitors and proximity monitor systems incorporating proximity sensor monitors. A proximity sensor monitor measures the impedance or other electrical characteristics of a proximity sensor component to determine the presence of a target. The proximity sensor monitor performs this measurement independently of a separate proximity sensor. The proximity sensor monitor is configured to compensate for differences between the measurement frequency of the proximity sensor monitor and the driving frequency of the proximity sensor.
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