Information recording method, reproducing method, and recording/reproducing method utilizing holography
US7321541B2 · kind B2 · utility
33Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2003 |
| Grant date | Jan 22, 2008 |
| Priority date | — |
| Expiry date | Oct 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0065
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for recording information on a recording medium utilizing an interference pattern by interference between an information light modulated spatially with digital pattern information displayed on a spatial light modulator having multiple pixels and a reference light for recording. In order to provide a novel recording method capable of enhancing the recording density and the transfer rate furthermore, digital information to be recorded is represented by match/mismatch of the attributes of adjacent pixels in the spatial light modulator to produce digital pattern information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.