Video signal processing circuit for extracting a chroma signal f

Details Video signal processing circuit for extracting a chroma signal f Video signal processing circuit for extracting a chroma signal f

1990-09-14

1992-06-02

Kosak, Victor R.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358329, 358 36, H04N 978

Patent

active

051191792

ABSTRACT:
A video signal processing circuit for reproducing an FM video signal. A video reproduction signal output from a magnetic head is supplied to a low-pass filter, which extracts a chroma signal. The video reproduction signal is also supplied to a chroma signal removing circuit through a high-pass filter of low degree and sharpness. The chroma signal removing circuit removes the chroma signal component. The output of the chroma signal removing circuit is amplitude-limited to a predetermined degree by a limiter, and then supplied to a demodulator which extracts a luminance signal.

REFERENCES:
patent: 4766486 (1988-08-01), Ozaki
patent: 4771341 (1988-09-01), Shimizu et al.
patent: 4831463 (1989-05-01), Faroudja

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