Method and apparatus for reading multiple tracks and writing at least one track of an optical disk
US6314071A · kind A · utility
6Cited by
50References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1998 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Feb 20, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/13727
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides an optical system having a read mode, during which multiple tracks of an optical disk are simultaneously read, and a write mode, during which data is written to at least one track of the optical disk. The multiple light beams employed during read mode may be generated by a single laser diode operated at low power used in combination with a diffractive element, multiple laser diodes, or combinations thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.