Infrared sensing device and method
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United States of America Patent
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Dec 1, 1998
Grant Date -
N/A
app pub date -
Jul 12, 1996
filing date -
Jul 13, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
An infrared sensing device includes a condensing lens for gathering an infrared ray from a human body, a guide unit for dividing a room to be monitored into a plurality of lateral and vertical zones and for guiding the infrared ray to a part of an infrared sensor unit corresponding to its direction, a housing for enclosing the condensing lens and guide unit to preclude dispersion of the incident infrared ray, an infrared sensor unit for sensing an infrared ray of a certain zone or infrared rays of a plurality of zones guided by the guide unit and housing, and a signal processing unit for amplifying an output signal of the infrared sensor unit, and for converting the applied signal into a digital signal and analyzing the digital signal.
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