Magnetic storage devices with dynamic boost adjustment to reduce read errors
US5438462A · kind A · utility
17Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1993 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | Oct 12, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/183
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a magnetic storage system, an error recovery is performed by reading the magnetic medium again with the filter programmed to a higher boost. If the retry still fails, the magnetic medium is read again with the filter programmed to a lower boost. The filter adjustment can be performed in combination with position adjustment of the read head, i.e. displacing the read/write head from the centerline of the track during error recovery to reduce read errors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.