Magneto-optical recording device using magneto-resistive head
US6288981A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2000 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Jul 18, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an optical recording and magnetic-head reproducing system, the reproduced output is prevented from starting to decrease, upon the length of record bits getting shorter, in the range of the bit length larger than reproducing resolution of a magnetic reproducing head. When data are recorded magneto-optically on a magnetic recording medium, the radius of curvature of arcs constituting the boundary of recorded magnetic domains is made as large as possible so that the shape of the recorded spot may be substantially rectangular. As a result, it becomes possible to improve the efficiency of magnetic reproduction, and high-output as well as high-SN-ratio reproduction at high linear recording density can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.