Disk drive device and data rewrite method thereof
US8068299B2 · kind B2 · utility
8Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2008 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Jun 2, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention help to reduce the occurrence of read hard errors in a hard disk drive (HDD). According to one embodiment, a HDD rewrites data on all data tracks of a block M when the number of write operations to the block consisting of continuous plural data tracks. The HDD further rewrites data on continuous plural data tracks and adjacent to the block. Since the number of write operations is counted every block, a memory area to register the number of write operations can be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.