Video special effect generator

Details Video special effect generator Video special effect generator

1996-11-19

1998-11-10

Lee, Michael

Television

Image signal processing circuitry specific to television

Special effects

348591, 348580, 348625, H04N 974

Patent

active

058351590

ABSTRACT:
A video special effect generator comprises a first mixer supplied with an input video signal indicative of an input image, a delay circuit for delaying an output video signal supplied thereto from the first mixer and supplying a delayed output video signal to the first mixer, and a control circuit including an edge detecting circuit for detecting an edge of an input image indicated by the input video signal supplied thereto and outputting an edge signal indicative of the detected edge and generating a mixing ratio control signal on the basis of the edge signal, wherein the first mixer mixes the input video signal and the delayed output video signal supplied thereto from the first delay circuit with a mixing ratio based on the mixing ratio control signal.

REFERENCES:
patent: 4141041 (1979-02-01), Peters
patent: 4358788 (1982-11-01), Burrowes
patent: 5146333 (1992-09-01), Chaplin
patent: 5619277 (1997-04-01), Kobayashi

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