G - Physics – 08 – B
Patent
G - Physics
08
B
340/124.4
G08B 29/00 (2006.01) G08B 13/19 (2006.01)
Patent
CA 1326517
ABSTRACT OF THE DISCLOSURE There is disclosed an audio indicator apparatus for locating boundaries of optically divided detection zones covered by a passive infrared detection system having a collector for collecting infrared rays from the zones of an area to be monitored, and a detector for passively detecting infrared rays collected by the collector and for generating a first signal having an amplitude responsive to the rays collected by the collector, which comprises a signal generator to be connected to a speaker for producing a second signal responsive to the first signal, the second signal being indicative of activity of the detection system at a point, within the area to be monitored, where an infrared radiation emitting object is moved, to locate the boundaries of the zones.
607681
Hershkovitz Shmuel
Shpater Pinhas
Anglehart Et Al.
Hershkovitz Shmuel
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