Methods, optical recording apparatus using such methods and optical recording medium for use by the methods and the apparatus
US7110336B2 · kind B2 · utility
2Cited by
10References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2001 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | May 15, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0045
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In methods and an optical recording apparatus using these methods, an optimum write power of a radiation beam in the apparatus is set by writing a series of test patterns on the optical recording medium, forming a read signal from the patterns and processing the read signal. Such processing involves fitting a function, preferably a straight line, to parameters obtained from the read signal without having to perform a differentiation step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.