Security system

Details Security system Security system

1982-05-25

1986-10-07

Crosland, Donnie L.

Communications: electrical

Condition responsive indicating system

With particular coupling link

340504, 340505, 340506, 340531, 358 86, 455 3, 375 36, G08B 108

Patent

active

046162143

ABSTRACT:
A CATV system includes a security system incorporated therein through which a subscriber can automatically or manually transmit various warning or emergency signals to the CATV base station. Apparatus at the base operates to determine the type of warning signal received, and transmits a corresponding confirmation signal to the particular home unit. An indicator on the unit gives a visual indication of the receipt of the corresponding confirmation signal.

REFERENCES:
patent: 3713142 (1973-01-01), Getchell
patent: 3737858 (1973-06-01), Turner et al.
patent: 3866206 (1975-02-01), DeGiorgio et al.
patent: 3914692 (1975-10-01), Seaborn Jr.
patent: 4148021 (1979-04-01), Watanabe
patent: 4361730 (1982-11-01), Barber et al.
"Exploration of Future CATV", published by Broadcast Journal Company, Feb., 1973.

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