Method and apparatus for determining writing power for recording data
US7839738B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 10, 2006 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Sep 3, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/006
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for determining an optimal writing power for recording data on a recording medium such as an optical disk, are discussed. The method according to an aspect of the present invention includes (a) performing an optimal power calibration (OPC) operation on a first area of the recording medium, and detecting a first writing power based on the OPC operation performed on the first area; (b) performing an OPC operation on a second area of the recording medium after erasing data on the second area, and detecting a second writing power based on the OPC operation performed on the second area; and (c) determining an optimal writing power for recording data on the recording medium based on the detected first and second writing powers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.