Contour correcting apparatus for video signals

Details Contour correcting apparatus for video signals Contour correcting apparatus for video signals

1980-11-03

1983-07-12

Masinick, Michael A.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 514

Patent

active

043934072

ABSTRACT:
A contour correcting arrangement for video signals includes a differentiator to differentiate an input video signal, a delay circuit which delays by a predetermined time period the differentiated waveform resultant from the differentiation and the video signal, and a combining circuit for combining the inverted waveform of the differentiated waveform, delayed differentiated waveform, and delayed video signal.

REFERENCES:
patent: 4030121 (1977-06-01), Faroudja
patent: 4086618 (1978-04-01), Koubek
patent: 4170785 (1979-10-01), Yoshida
patent: 4268864 (1981-05-01), Green

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