| http://www.w3.org/ns/prov#value | - ture, where N is an integer greater than 1; means for processing the N sets of subsamples during N NTSC video frames, respectively, to generate the subsampled video signal at an NTSC compatible rate which is different from the first rate, the subsampled video signal forming a picture having lines, the N NTSC video frames forming an NTSC picture corresponding to the high definition picture, each of
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