Chrominance signal reproducing apparatus for video tape recorder

Facsimile and static presentation processing – Facsimile – Recording apparatus

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358329, H04N 979

Patent

active

049910264

ABSTRACT:
A magnetic recording and reproducing apparatus for eliminating the crosstalk component from an adjacent track of a tape of a VTR and obtaining a high picture quality. Chrominance signals in the base band which are produced by a low frequency conversion chroma signal are supplied to comb-shaped filters which are used in the magnetic recording and reproducing apparatus. The chrominance signals in the base band are obtained by generating carriers synchronized with a burst signal of the low frequency conversion chroma signal including the jitter component upon reproduction and by multiplying the carriers and the low frequency conversion chroma signal. A burst signal portion between the resultant chrominance signals in the base band is applied as a frequency control input signal to an oscillator as the carrier generating source, so that desired carriers are derived. Thus, the frequency fluctuation is eliminated from the converted chrominance signal in the base band and the high picture quality can be realized.

REFERENCES:
patent: 3315028 (1967-04-01), Kool
patent: 4400742 (1983-08-01), Yamamitsu et al.
patent: 4477831 (1984-10-01), Hosoya

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