Automatic noise removal device for a picture signal

Details Automatic noise removal device for a picture signal Automatic noise removal device for a picture signal

1981-10-01

1983-10-25

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 521

Patent

active

044122535

ABSTRACT:
Disclosed is an automatic noise removal device which detects an amplitude of noise contained in a high frequency component of a picture signal during a flyback period of the picture signal, produces a threshold level depending on the detected signal, and removes from a video signal a high frequency component of the picture signal contained in a picture signal at a lower level than the threshold level.

REFERENCES:
patent: 4031547 (1977-06-01), Saiki et al.

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