Apparatus and method of initializing phase-change optical disk
US7558187B2 · kind B2 · utility
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5References
19Claims
0Family size
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Key dates
| Filing date | Dec 8, 2005 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Jul 17, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/268
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided is an apparatus and method of initializing a recording layer used in manufacturing a phase-change optical disk for storing information. The optical disk is initialized using a UV lamp in order to initialize the recording layer of the phase-change optical disk capable of repeatedly writing information, without a separate optical head, whereby it is possible to increase productivity by remarkably reducing an initialization time of the optical disk since a large area is initialized using a UV beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.