Circuit arrangement in a color television encoder

Details Circuit arrangement in a color television encoder Circuit arrangement in a color television encoder

1979-09-12

1981-07-14

Griffin, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358148, 358158, H04N 944

Patent

active

042789940

ABSTRACT:
A circuit arrangement in a color television encoder comprising a first oscillator for generating a chrominance subcarrier signal, a second oscillator for generating a signal having the line frequency or a multiple thereof and a phase control loop for readjusting the phase of one of the said oscillators and including a sample and hold circuit operative every 2n.sup.th line and at a given instant in the line period, n being an integer. As a result thereof the phase between the two signals is fixed.

REFERENCES:
patent: 3571513 (1971-03-01), Ward
patent: 3646362 (1972-02-01), Limberg
patent: 3733432 (1973-05-01), Arimura
patent: 3739081 (1973-06-01), Roth
patent: 3904823 (1975-09-01), Van Straaten
patent: 4024343 (1977-05-01), Cense
Ebo Review, nr. 172, Dec. 1978, p. 265-281, "Disturbances Occurring at Edits on Pal 625-Line Video Tapes".

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