Intrusion alarm system utilizing the barking of a watchdog

Details Intrusion alarm system utilizing the barking of a watchdog Intrusion alarm system utilizing the barking of a watchdog

1977-02-14

1978-12-26

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340541, 340573, G08B 1300

Patent

active

041318870

ABSTRACT:
A system is described which detects the sound of barking of a watchdog and generates an electric signal in response to that barking. The electric signal, suitably processed by electronic circuitry, is used to operate an appropriate intrusion reaction device, such as an audible alarm, floodlights, or a remote indicator device located at a guard or police station.

REFERENCES:
patent: 3713126 (1973-01-01), Stettner

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