Patent ID: 6925250
Filing Date: 2005-08-02
Classification: G11B,H04N

Abstract:
1. An optical disk reproduction apparatus for reproducing a signal recorded on an optical disk, in which the optical disk has, recorded thereon, at least a first video stream representing a low frequency component of the video signal and a second video stream representing at least a high frequency component of the video signal, the first video stream includes a plurality of first interleave units and the second video stream includes a plurality of second interleave units, each of the plurality of first interleave units includes m1 GOPs (where m1 is an integer of 1 or greater), each of the plurality of second interleave units includes m2 GOPs (where m2 is an integer of 1 or greater), the optical disk reproduction apparatus comprising: a reproduction section for reproducing the first video stream and the second video stream recorded on the optical disk; a division section for dividing the reproduced first video stream into the plurality of first interleave units and for dividing the reproduced second video stream into the plurality of second interleave units; a decoding section for decoding the plurality of first interleave units to generate a first reproduction signal representing the low frequency component of the video signal and for decoding the plurality of second interleave units to generate a second reproduction signal representing at least the high frequency component of the video signal; a synthesis section for synthesizing the first reproduction signal and the second reproduction signal to generate the video signal; and an output section for selectively outputting at least one of the first reproduction signal, the second reproduction signal, and the video signal.