Apparatus for selectively transmitting television images from a

Details Apparatus for selectively transmitting television images from a Apparatus for selectively transmitting television images from a

1976-12-08

1978-05-23

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 522, H04N 700

Patent

active

040914224

ABSTRACT:
A system for selectively transmitting television images includes a plurality of television cameras for generating image signals. The cameras may be placed at different respective locations, and at least a single television monitor-receiver is provided for selectively receiving and monitoring one of the image signals. The monitor-receiver includes a circuit for generating common line and field synchronizing signals for the cameras, and an activation-signal generating circuit for supplying activation signals for the cameras, respectively. The activation and synchronizing signals are transmitted to the cameras, respectively, by cable or radio-frequency.

REFERENCES:
patent: 3258531 (1966-06-01), Reindl et al.
patent: 3437753 (1969-04-01), Stith

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