Optical disk drive and write speed control method
US6498773B1 · kind B1 · utility
7Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2000 |
| Grant date | Dec 24, 2002 |
| Priority date | — |
| Expiry date | Mar 15, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2545
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical disk device has a motor that rotates an optical disk, motor control means for making constant a rotational speed of the motor, and write control means for changing a write frequency of information written to the optical disk such that writing of the information onto the optical disk is made at a substantially constant recording density, irrespective of a track on which the information is recorded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.