Progressive scan video signal processor

Details Progressive scan video signal processor Progressive scan video signal processor

H - Electricity

04

N

350/36

H04N 5/14 (2006.01) H04N 5/44 (2006.01) H04N 9/77 (2006.01)

Patent

CA 1311835

RCA 82,215 ABSTRACT PROGRESSIVE SCAN VIDEO SIGNAL PROCESSOR A speed-up circuit time compresses and interlaces field delayed (Yd) and interpolated (Yi) lines of a video input signal (Y1) for display in progressive scan fashion. The interpolated lines (Yi) are produced by adding low and high frequency components derived from the video input signal. The low frequency component (s5) is produced by frame-combing (in 62) and low pass filtering the input signal. The high frequency component is obtained by field delaying (in 56), line comb filtering (in 66) and high pass filtering the input signal. The combined low and high frequency components are spatially and temporally coincident thereby reducing the visibility of motion artifacts (double images) on the display.

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