Optical recording/reproducing method, system, and program
US7986596B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Jun 19, 2007 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Aug 11, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/005
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording/reproducing system 1 reads, based on a predetermined reproduction clock, information associated with a recording track of a recording medium by irradiating frequency light. The frequency light is scanned at a predetermined scan velocity. The optical recording/reproducing system includes a computer 13, a DSP 49, and a LD driver that modulate light by a drive signal on which a frequency signal is superimposed to thereby output the frequency light, and synchronizes a frequency of the frequency signal with a frequency of the reproduction clock according to the scan velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.