Data retrieval from a storage device using a combined error correction and detection approach
US7426676B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 2004 |
| Grant date | Sep 16, 2008 |
| Priority date | — |
| Expiry date | Sep 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/1515
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
One or more methods and systems of effectively retrieving data stored in a media of a storage device are presented. The one or more methods and systems are implemented by way of correcting and detecting errors using a multi-stage decoding process. In one embodiment, the storage device comprises a magnetic hard drive. In one embodiment, the system and method applies an encoding/decoding technique that allows error correction and detection to be performed over a number of successive decode stages or processing stages. Use of the system and method increases the maximum number of symbol errors that may be corrected in an encoded codeword, providing an improvement in data recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.