Method to reestablish a predetermined phase relationship of a ch

Details Method to reestablish a predetermined phase relationship of a ch Method to reestablish a predetermined phase relationship of a ch

1986-05-05

1987-10-06

Masinick, Michael A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 37, H04N 964

Patent

active

046986677

ABSTRACT:
To simplify the apparatus and the method steps to reestablish predetermined phase relationship of a chrominance TV signal with a reference, two chrominance derived signals of carrier frequency, respectively phase shifted by plus and minus 45.degree. with respect to the carrier frequency are obtained; chrominance derived signals, likewise phase shifted with respect to the input chrominance signal, are amplitude modulated with set voltages, and the amplitude modulated chrominance derived signals are so added that the phase position of the resulting chrominance signal will match that of the reference carrier.

REFERENCES:
patent: 4285006 (1981-08-01), Kurahashi
patent: 4434438 (1984-02-01), Rzeszewski
patent: 4502076 (1985-02-01), Cluniat
Article by H. Fix, in "RTM" Television Slow-Motion Apparatus for Black-White and Color TV by Use of a Magnetic Disc Memory, No. 6, 1968, pp. 249-259.

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