Protection system for electronic gear

Details Protection system for electronic gear Protection system for electronic gear

1978-05-05

1981-01-20

Caldwell, Sr., John W.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340 63, 340568, 340571, 375 2, 455 1, 455 26, 455 89, G08B 108, H04K 100

Patent

active

042465737

ABSTRACT:
A system for use in combination with (for electrical attachment to) electronic gear having an audio amplifier and which includes alarm means for generating a theft signal which is broadcast through a transmitter or audio system thereof and internal coded disable means for disabling the alarm upon insertion into the system of a predetermined coincidence signal that is substantially unique for each individual unit protected.

REFERENCES:
patent: 2541461 (1951-02-01), Churchill
patent: 3161829 (1964-12-01), Schulman
patent: 3387101 (1968-06-01), Skiles
patent: 3755776 (1973-08-01), Kotras
patent: 4067411 (1978-01-01), Conley et al.
patent: 4145655 (1979-03-01), Caudel et al.

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