Security device for cable television

Details Security device for cable television Security device for cable television

1983-04-28

1985-09-24

Buczinski, S. C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

339 37, H04N 716, H04K 100, H01R 1344

Patent

active

045436061

ABSTRACT:
An electrical circuit that interrupts normal operation of a cable television channel selection box responsive to unauthorized entry into the box. A closure means is mounted about its periphery by a plurality of screw members that must be removed in a predetermined sequence to avoid disabling the box. A power source provides current through a bypass means in the form of a normally closed switch means as long as the closure means remains closed, but removal of a fastening means not associated with said bypass means prior to interruption of said current results in de-activation of the channel selection box.

REFERENCES:
patent: 4097894 (1978-06-01), Tanner et al.
patent: 4149158 (1979-04-01), Iwaoka et al.
patent: 4232396 (1980-11-01), Grimes
patent: 4313132 (1982-01-01), Doles et al.

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