H - Electricity – 04 – N
Patent
H - Electricity
04
N
352/18
H04N 9/82 (2006.01) H04N 9/79 (2006.01) H04N 9/85 (2006.01)
Patent
CA 1320762
PATENT 39.0110.2083 COLOR VIDEO SIGNAL REPRODUCING APPARATUS ABSTRACT OF THE DISCLOSURE A video signal reproducing apparatus has a filter circuit interposed in a transmission path for a reproduced luminance signal, and the characteristic of the filter circuit desirably includes a band-eliminating characteristic and a comb-filter passband characteristic which can be selectively emphasized. When the reproduced luminance signal has a normal or relatively smaller frequency bandwidth or a relatively small line correlation component, or when the level of the reproduced carrier chrominance signal is high, the band-eliminating characteristic of the filter circuit is emphasized. The foregoing video signal reproducing apparatus is particularly suited for reproducing a color video signal that includes a wide band luminance signal, in which case the comb-filter passband characteristic of the filter circuit is selected or emphasized so as to reduce noise near the color subcarrier frequency, to avoid displacement of a reproduced picture of high definition in the vertical direction and also to avoid interference caused by the vertical non-correlation component of a color picture. -1- SONY2.03
570078
Gowling Lafleur Henderson Llp
Sony Corporation
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