Method for recording to and reproducing from a magnetic recording medium, recording and reproduction device for the same, and magnetic recording medium
US7535803B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 1, 2005 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Feb 6, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for recording to and reproducing from a magnetic recording medium is disclosed in which an information signal is recorded and reproduced under thermal assist, and which allows one to stably record tiny recording magnetic domains and stably detect a reproduction output signal during reproduction when recording at high density. In this method, the temperature distribution in the information recording and reproduction region of the magnetic recording medium is controlled to be different during recording and during reproduction. This allows recording magnetic domains to be stabilized even when recording fine marks, and greatly increases the recording density because stable detection is possible without reducing the reproduction signal amplitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.