H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 37/02 (2006.01)
Patent
CA 2116690
2116690 9305627 PCTABS00020 An apparatus and method for a sensing apparatus used for example in an illumination control monitoring a particular area. The sensing apparatus includes selectable and independent triggering and retriggering modes for activating and deactivating a lamp. Three sensors, a PIR, a sound and a light sensor cooperatively interact to cause triggering upon detecting motion in a low ambient light room. Thereafter, retriggering results upon either motion or sound being periodically detected in the room. No motion or sound within a predetermined duration results in deactivation of the light and a return to a pre-triggering configuration.
Desa Patent Holdings Corporation
Fetherstonhaugh & Co.
LandOfFree
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