Method and apparatus for coupling to a studio synchronizer a rec

Details Method and apparatus for coupling to a studio synchronizer a rec Method and apparatus for coupling to a studio synchronizer a rec

1974-06-26

1976-04-06

Griffin, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

360 36, H04N 576, H04N 578

Patent

active

039494152

ABSTRACT:
A color TV signal is recorded on an information carrier and includes a luminance component which occupies a predetermined luminance frequency range and a modulated chrominance subcarrier. In a conventional color TV signal, the modulated chrominance subcarrier occupies a first chrominance frequency range having a predetermined location relative to the luminance frequency range. However, the modulated chrominance subcarrier is assigned a different second frequency range which has the advantage that the modulated chrominance subcarrier in such range is easier to record. A color TV picture is to be reproduced from such recorded color TV signal. Firstly, there is introduced into such color TV signal a corrective phase shift bringing the signal into synchronism with a studio synchronizer. Only thereafter is the modulated chrominance subcarrier frequency-translated from the second back to the conventional first chrominance frequency range to thereby form a conventional color TV signal.

REFERENCES:
patent: 3549793 (1970-12-01), Ross
patent: 3629491 (1971-12-01), Dann et al.
patent: 3637936 (1972-01-01), Krause
patent: 3704341 (1972-11-01), Fujita

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