Apparatus for processing a color video signal

Details Apparatus for processing a color video signal Apparatus for processing a color video signal

H - Electricity

04

N

352/18.2

H04N 5/225 (2006.01) H04N 5/915 (2006.01) H04N 9/87 (2006.01) H04N 9/873 (2006.01) H04N 11/20 (2006.01)

Patent

CA 1321642

PATENT 39-0100.2135 AN APPARATUS FOR PROCESSING A COLOR VIDEO SIGNAL ABSTRACT OF THE DISCLOSURE In an apparatus for processing a repeatedly reproduced single field of a color video signal, the phase of a chrominance subcarrier in the color video signal is shifted by 90 degrees at each field period, and the single repeatedly reproduced field of the color video signal is selectively delayed during alternate field periods for a delay time equal to one-half the horizontal scanning period so that the single field, as repeatedly reproduced and selectively delayed in two successive field periods, can function as interlaced fields of a frame while avoiding disturbance of the chrominance subcarrier due to the selective delaying in alternate field periods.

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