Audio and visual intercommunication and surveillance system

Details Audio and visual intercommunication and surveillance system Audio and visual intercommunication and surveillance system

1977-04-14

1981-02-03

Griffin, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 716, H04N 718

Patent

active

042492068

ABSTRACT:
A communication network interconnecting a master control station with a plurality of remote substations, each station having a television receiver connected to a master antenna distribution system. The receiver components are selectively converted into an arrangement with closed circuit television cameras at each station for televised intercommunication under control of the operator at the control station, the cameras also being utilized in a substation surveillance mode of operation. A video tape recorder having a playback capability is operationally coordinated into the network for replay of recorded programs at any station.

REFERENCES:
patent: 3484548 (1969-12-01), Kowal et al.
patent: 3517120 (1970-06-01), Bunting
patent: 3534161 (1970-10-01), Friesen et al.
patent: 3588336 (1971-06-01), Scher
patent: 3946159 (1976-03-01), Fay

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