Intrusion alarm system

Details Intrusion alarm system Intrusion alarm system

1991-12-31

1994-02-01

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

Specific condition

250342, 250349, G08B 1318

Patent

active

052835510

ABSTRACT:
A passive intrusion alarm system having an array of infrared sensing elements arranged and sampled so as to provide a two dimensional thermographic image of an intruder.

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