Information recording method, information recording/reproducing apparatus, and information recording medium
US6683834B2 · kind B2 · utility
21Cited by
9References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2003 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Mar 5, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An information recording method has;a history determination step for determining whether or not a medium being cased and capable of being used for information recording and reproduction has previously been taken out from the case by using an identification section having historical information as to whether the medium has previously been taken out from the case or not; anda verification step for verifying correctness of information recorded always or on condition that a predetermined condition is satisfied when a result of the determination shows that the medium has previously been taken out from the case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.