Optical recording/reproducing method, system, and program
US7983124B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jun 19, 2007 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Aug 3, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/1263
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data recording/reproducing system (1) reads a recording signal written on a recording track of a recording medium (3), by using light, which is modulated by a drive signal wherein a frequency signal is superposed for scanning the signal along the recording track at a prescribed scanning speed. Then, the system reproduces the read signal as data. The data recording/reproducing system is provided with a computer (13) for controlling the superposition frequency of the frequency signal for the drive signal corresponding to the scanning speed, and an LD driver (17).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.