System and method for combining pre-mastered errors with marks or printed spots on optical media
US8243570B2 · kind B2 · utility
1Cited by
10References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2008 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Dec 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2541
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical article for playback in a player, the optical article including at least one sector having data, and a mark disposed in a predetermined relationship with the at least one sector, wherein the mark renders a portion of the data generally unreadable. The optical article further includes error correction code associated with the at least one sector, wherein data within the error correction code is configured as partially corrupted. The inclusion of partially corrupted error correction code reduces the size of the mark or spot required to render the data sector uncorrectable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.