Optical storage system divider based draw verification
US9899055B1 · kind B1 · utility
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20Claims
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Key dates
| Filing date | Aug 22, 2016 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Aug 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/1353
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical storage system includes an optical head and controller arrangement. The arrangement is configured to write data to an optical medium via a higher power main beam, to read, directly after writing, feedback from the medium containing the written data and noise resulting from the higher power main beam, to remove the noise from the feedback by dividing the feedback with data indicative of the higher power main beam, and to generate output indicative of the written data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.