Disk drive data protection using clusters containing error detection sectors
US6751757B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2000 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Jul 4, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/415
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention is related to methods and apparatus that can enhance the reliability of a hard drive by providing a built-in error check in the drive. Conventional hard drives can erroneously seek to an incorrect location on a platter of the hard drive. The erroneous seek corrupts the data stream and is difficult to detect and correct. Embodiments of the present invention can detect a logical block address assigned to a portion of the platter of the hard drive and thereby detect when an erroneous seek has occurred. Upon detection of an error, one embodiment of the present invention can further take corrective action to read from the correct portion of the platter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.