Intruder detection system

Details Intruder detection system Intruder detection system

1978-01-03

1980-04-08

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

340552, 340554, G01S 942, G08B 1322

Patent

active

041975375

ABSTRACT:
A microwave radar type of intruder detection system incorporating signal sensing, storing and comparison logic which enables the system to self-adapt to any preselected environment and produce a signal in the event of a predetermined change from the ambient conditions of the preselected environment.

REFERENCES:
patent: 3723738 (1973-03-01), Brenner et al.
patent: 3815131 (1974-06-01), Dautel et al.
patent: 3967283 (1976-06-01), Clark et al.

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