OCCUPANCY SENSOR FOR OCCUPIABLE ITEM E.G. SEAT OR BED
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United States of America Patent
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Issued Date -
Jan 1, 2015
app pub date -
Dec 21, 2012
filing date -
Dec 21, 2011
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Abstract
An occupancy sensor for detecting the occupancy state of an item occupiable by a human or animal occupant, e.g. a seat or a bed, the sensor including a thermistor, to be arranged in compression-dependent heat-conducting relationship with the occupiable item, and a control circuit operatively connected to the thermistor, where the control circuit is configured to derive an occupancy state of the occupiable item from a response of the thermistor to heat generated in or in vicinity of the thermistor.
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