Information recording medium, recording apparatus, reproduction apparatus, recording method and reproduction method
US7031239B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2003 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Jun 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2562
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information recording medium includes a data area for recording user data, and a defect management area for recording a defect list for managing N number of defect areas existing in the data area, where N is an integer satisfying N≧0. The defect list includes a header located at a fixed position in the defect list, N number of defect entries respectively including position information on positions of the N number of defect areas, and an anchor. The header, the N number of defect entries, and the anchor are located in this order. The header includes a defect list identifier for identifying the defect list, first update times information, and a defect entry number representing the number of the defect entries. The anchor includes an anchor identifier for identifying the anchor, and second update times information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.