Method for optical data recording and reproducing
US7027376B2 · kind B2 · utility
1Cited by
3References
9Claims
0Family size
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Key dates
| Filing date | Jan 3, 2001 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Feb 15, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/24
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method for optical recording of data on a photosensitive storage medium, characterized in that the data are encoded according to different possible states for the various components of a non-linear susceptibility tensor of the photosensitive medium and it consists in irradiating simultaneously at least a point of said support with write beams whereof the polarization is controlled for optical recording of a given non-linear susceptibility tensor on the photosensitive medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.