Optical disk for high resolution and general video recording, optical disk reproduction apparatus, optical disk recording apparatus, and reproduction control information generation apparatus
US8107794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2009 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | May 13, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0085
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention has an objective of realizing compatibility of an optical disk having a high resolution video signal recorded thereon and a system for reproducing the optical disk, with a conventional system for producing a standard resolution video signal. A high resolution video signal is divided by video division means into a main signal and a sub signal, and the main signal and the sub signal are MPEG-encoded. The stream of the main signal and the stream of the sub signal are divided into 1 GOP or more of frames. First interleave blocks 54 each including 1 GOP or more of the stream of the main signal and second interleave blocks 55 each including 1 GOP or more of the stream of the sub signal are recorded on an optical disk 1. A high resolution reproduction apparatus reproduces both the first and second interleave blocks to obtain a high resolution video output. A non-high quality picture reproduction apparatus reproduces only the first or second interleave blocks to obtain a standard resolution video output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.