Apparatus for suppressing noises in a video signal

Facsimile and static presentation processing – Static presentation processing – Attribute control

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358 38, H04N 987

Patent

active

049281666

ABSTRACT:
An apparatus for suppressing noises in a color video signal is constructed to extract a frequency band component of the color video signal, to limit the amplitude of the extracted frequency band component, and to subtract the component, which is limited in amplitude, from the color video signal. Thus, a beat component such as a beat component generated by the interference between the main carrier signal and the color carrier signal of a recording video signal is removed from a video signal obtained after demodulation.

REFERENCES:
patent: 4667225 (1987-05-01), Kanda
patent: 4672429 (1987-06-01), Faroudja et al.
patent: 4709269 (1987-11-01), Ozaki
patent: 4779133 (1988-10-01), Sugimori et al.
patent: 4802016 (1989-01-01), Kaneko

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