Optical information recording medium, reproduction apparatus, and reproduction method
US9111553B2 · kind B2 · utility
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2References
3Claims
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Key dates
| Filing date | Dec 7, 2012 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Dec 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2595
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The reliability of a super-resolution optical information recording medium whose capacity can be increased is increased. On an optical information recording medium (11) according to the present invention, a content is recorded as a pit group formed such that an average length Tm [nm] of a minimum mark length and a minimum space length becomes shorter than an optical system resolution limit, and reading speed information designating a reading speed in a range from 2×(4.92×Tm/149) [m/s] to less than (10000/60)×2×π×(24/1000) [m/s] is recorded as a reading speed for reproducing the content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.