Proximity switch assembly and method having adaptive time delay
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United States of America Patent
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Jun 23, 2015
Grant Date -
Oct 17, 2013
app pub date -
Apr 11, 2012
filing date -
Apr 11, 2012
priority date (Note) -
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Abstract
A proximity switch assembly and method for detecting activation of the proximity switch assembly is provided. The assembly includes a plurality of proximity switches each providing a sense activation field and control circuitry processing the activation field of each proximity switch to sense activation. The control circuitry monitors the signal responsive to the activation field, determines a rate of change in signal amplitude for each signal, and generates an adaptive time delay based on the control circuitry. The control circuitry further detects a peak amplitude of the signal and determines activation of the switch after expiration of the time delay following the peak amplitude detection.
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