Optical recording/reproducing method, system, and program
US8068391B2 · kind B2 · utility
1Cited by
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18Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 19, 2007 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Jul 8, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/1263
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording/reproducing system 1 reads a recorded signal written to a recording track of a recording medium 3 by light. The light is modulated by a drive signal on which a frequency signal is superimposed. The light is scanned along the recording track at a predetermined scan velocity. The optical recording/reproducing system 1 includes a computer 13 and an LD driver 17 that control, based on the scan velocity, a superimposed magnitude of the frequency signal on the drive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.