Optical recording method
US7362683B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2003 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Sep 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording method of recording information to a phase change optical recording medium with alternate application of peak power and bias power in a pulse manner and with changing a pulse application interval continuously from an inner part through an outer part of the recording medium with an interval proportional to a window width Tw and a fixed interval, comprising the step of starting a top peak power application interval with a delay from a data input pulse signal starting time for a target mark length nTw, where n denotes an integer in a range between 3 and 14, with changing the delay in proportion to the window width Tw with changing a proportionality factor discretely with respect each linear velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.