Encoding apparatus for a closed circuit television system

Details Encoding apparatus for a closed circuit television system Encoding apparatus for a closed circuit television system

1982-04-23

1984-12-25

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358108, 358125, 358185, H04N 526

Patent

active

044907427

ABSTRACT:
Apparatus for generating an indicator on a remote monitor screen representative of the orientation of the monitoring camera. A sensor on the camera produces a signal proportional to the camera orientation. An encoder, including a sawtooth generator, a comparator, and time delay single-shot multivibrators, is synchronized to the camera video horizontal and vertical synchronization signals to provide a camera orientation indicator on the monitor. A modulator at the camera superimposes the encoded indicator signal onto the camera video signal thereby producing a single composite signal for transmission preferably over a single video or RF cable to the monitor.

REFERENCES:
patent: 3786481 (1974-01-01), Hartman
patent: 3916094 (1975-10-01), Marrone
patent: 3984268 (1976-10-01), Sharp
patent: 4045815 (1977-08-01), Griffin
patent: 4064528 (1977-12-01), Bowerman
patent: 4064540 (1977-12-01), Jetten
patent: 4084184 (1978-04-01), Crain
patent: 4208675 (1980-06-01), Bajon
patent: 4288809 (1981-09-01), Yabe
patent: 4402009 (1983-08-01), Rathjens et al.

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