Information recording medium, information recording method, information recording apparatus and information reproducing apparatus
US6385148B2 · kind B2 · utility
38Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2001 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Jul 31, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information recording medium of the present invention includes: a volume space in which user data is recorded; a spare area including a replacement area which may be used in place of a defective area included in the volume space; and a defect management information area in which defect management information for managing the defective area is recorded. The defect management information includes status information indicating whether the defective area is replaced by the replacement area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.