Super resolution producing apparatus capable of adjusting reproduction power
US8102750B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2009 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Aug 12, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2595
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
When a super resolution technology for optical disks is used in a situation where optical disk management information is formed with a signal that cannot be reproduced by a reproduction method based on a conventional optical disk technology, optical disk drives cannot make recording adjustments and/or reproduction adjustments. An optical disk drive uses an optical disk that forms a management information signal with pits not smaller in size than optical resolution and can be read by a reproduction method based on a conventional optical disk technology. When the optical disk drive records information onto or reproduces information from the optical disk having the super resolution region, it is possible to make proper recording adjustments or reproduction adjustments and perform a proper recording operation or reproducing operation in an optical disk's information region for user information recording or reproduction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.