Method and apparatus for recording and/or reproducing data
US7649817B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2004 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Nov 20, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0079
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus for recording and/or reproducing data in which a recording and/or reproduction velocity is be reduced when a data recording and/or reproduction error occurs due to a defect of an optical disc during recording of data on and/or reproduction of data from the optical disc. The method includes: recording data on an optical disc that is rotating at a predetermined constant angular velocity; determining whether a data recording error occurs; and if it is determined that a data recording error has occurred, recording data on the optical disc that is rotating at a constant angular velocity which is lower than the predetermined constant angular velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.