Magneto-optical disc apparatus
US6018505A · kind A · utility
6Cited by
7References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1997 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | Jan 17, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10534
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magneto-optical disc apparatus using an initializing magnetic field generator, the magnetic field generator including a permanent magnet slides on or and floats above a surface of the magneto-optical disc for applying a magnetic field at a position on a track and precede to or follow a light beam spot irradiated by an optical head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.