Method of and apparatus for establishing emergency communication

Details Method of and apparatus for establishing emergency communication Method of and apparatus for establishing emergency communication

1975-04-25

1976-11-23

Habecker, Thomas B.

Telegraphy

Systems

Printing

325392, 325466, 178DIG13, 178DIG15, 340416, H04B 106

Patent

active

039939553

ABSTRACT:
In a two-way cable television communications system wherein a central or master station is coupled to a plurality of remote stations through a coaxial cable network, each remote unit is provided with means for decoding an emergency alert transmission signal from the master station to generate an internal signal to sound an annunciator, alerting a subscriber or viewer at the remote station that an emergency communication is forthcoming, switching on a television receiver at the remote station, if the television receiver is not on, and tuning the television receiver through a converter to a predetermined television channel to condition the television receiver to receive emergency communications from the master station.

REFERENCES:
patent: 3796829 (1974-03-01), Gray
patent: 3886538 (1975-05-01), Takeuchi

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