Recording apparatus for magneto-optical disc and disc cartridge misinsertion preventing mechanism
US5224079A · kind A · utility
50Cited by
18References
8Claims
0Family size
Inventor
Key dates
| Filing date | Jan 16, 1991 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Jan 16, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magneto-optical disc recording apparatus for writing information signals on a disc includes an external magnetic field generator that moves in close to the disc after the disc begins to rotate and moves away from the disc before the disc stops rotating to prevent the external magnetic field generator from contacting the disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.