Magnetic storage medium and heat assisted recording and reproduction method
US6603619B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2000 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Jan 7, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic storage medium includes a magnetic storage medium that exhibits a magnetic compensation temperature specified higher than room temperature to minimize effects of heat generated by a head using magneto-resistance effect. In a heat assisted recording and reproduction method using such a magnetic storage medium, during reproduction, the S/N ratio in a reproduction signal is enhanced by optimizing the bias current applied to the head using magneto-resistance effect. A magnetic storage medium and a heat assisted recording and reproduction method using such a magnetic storage medium whereby information is magnetically recorded and reproduced by heating a read-out domain are offered that enables signal reproduction with a good S/N ratio despite possible use of a head exhibiting magneto-resistance effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.