Apparatus for eliminating a noise signal

Details Apparatus for eliminating a noise signal Apparatus for eliminating a noise signal

1988-06-06

1989-12-05

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358340, 358166, H04N 5213

Patent

active

048856398

ABSTRACT:
An apparatus for eliminating a noise from a video signal, employs a first-order type noise eliminating section, for example, a limiter or the like. Such noise eliminating section, by utilizing line correlation, eliminates noise from the video signal in a high frequency region where the signal component level is large, for example, at the portion of a video signal corresponding to an edge portion of the display or picture.

REFERENCES:
patent: 4091420 (1978-05-01), Omori
patent: 4291330 (1981-09-01), Hirai
patent: 4635120 (1987-01-01), Ichinoi
patent: 4748498 (1988-05-01), Yamanishi
patent: 4768094 (1988-08-01), Ichinoi

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