Infrared intrustion detector
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United States of America Patent
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Sep 3, 1991
Grant Date -
N/A
app pub date -
Nov 22, 1989
filing date -
Nov 25, 1988
priority date (Note) -
Expired
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Abstract
A passive infrared intrusion detector provides improved intruder detection while using a single signal evaluation channel. Pyroelectric sensor element configurations include a diamond pattern with differentially opposed pairs of elements of opposite polarization connected in series for increased coverage and sensitivity.
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