High density data write strategy
US6775218B1 · kind B1 · utility
7Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1999 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Aug 12, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/006
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method are disclosed for recording information on a phase change medium is disclosed. The method includes irradiating a region of the phase change medium with a first dose of laser energy. A first portion of the region is irradiated with a second dose of laser energy in a manner that causes the first portion of the region irradiated with the second dose of laser energy to be in a different state than a second portion of the region that is not irradiated by the second dose of laser energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.