| http://www.w3.org/ns/prov#value | - lbert J. EndruschatTouchless switch which discriminates between motion intended to toggle the switch and other forms of motionUS5621205 *Apr 16, 1996Apr 15, 1997Tri-Tronics Company, Inc.Photoelectric sensor having an enhanced dynamic range control circuitUS5684458 *Feb 26, 1996Nov 4, 1997Napco Security Systems, Inc.Microwave sensor with adjustable sampling frequency based on environmental conditio
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