Control circuit for CATV alert system

Details Control circuit for CATV alert system Control circuit for CATV alert system

1983-03-23

1984-10-09

George, Keith E.

Facsimile and static presentation processing

Static presentation processing

Attribute control

455 4, 455228, H04N 716, H04B 116

Patent

active

044764880

ABSTRACT:
A circuit for controlling the operation of a cable television alarm device in accordance with an alert signal and an all-clear signal developed by a subscriber decoder in response to broadcast codes received over the cable network comprises a flip-flop responsive to the alert and all-clear signals for activating and de-activating the alarm device respectively and a manually operable single-pole switch for controlling the operation of the flip-flop. The switch is displaceable between first and second switching positions for enabling and disabling the flip-flop and is momentarily displaceable to the second switching position for clearing the flip-flop.

REFERENCES:
patent: 3122705 (1964-02-01), Craig et al.
patent: 3701024 (1972-10-01), Knowles et al.
patent: 3886538 (1975-05-01), Takeuchi
patent: 3975583 (1976-08-01), Meadows
patent: 3993955 (1976-11-01), Bezcher et al.
patent: 3996578 (1976-12-01), Takeuchi et al.
patent: 4066966 (1978-01-01), Takeuchi et al.
patent: 4075628 (1978-02-01), Masuda et al.
patent: 4142156 (1979-02-01), Freund

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