G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 7/0037 (2006.01) G11B 7/004 (2006.01) G11B 7/007 (2006.01) H04N 5/85 (2006.01)
Patent
CA 2340314
The present invention has an objective of providing an optical disk having a high resolution picture and a system for reproducing data on the optical disk, which are compatible with a conventional system for reproducing an ordinary resolution picture. A high resolution signal is divided into a main signal and a sub signal by picture division means and MPEG-encoded. The main signal and the sub signal are divided into frames each having 1 GOP or more. The resultant first interleave block 54 and second interleave block 55 are recorded alternately on an optical disk. A high resolution reproduction apparatus reproduced both the first and second interleave blocks, so that a high resolution picture is obtained. A non-high resolution reproduction apparatus reproduces only the first or second interleave block, so that an ordinary resolution picture.
Fukuda Hideki
Ishihara Hideshi
Kawara Toshiyuki
Kitaura Hiromu
Oshima Mitsuaki
Matsushita Electric Industrial Co. Ltd.
Osler Hoskin & Harcourt Llp
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