Read error recovery using soft information
US7738201B2 · kind B2 · utility
75Cited by
2References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2006 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Sep 6, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2516
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In general, this disclosure describes read recovery techniques for data storage devices that use soft information associated with multiple read operations to detect data. Specifically, the read recovery techniques comprise computing soft information for each bit detected during a first read operation of a data storage medium, computing soft information for each bit detected during a second read operation of the data storage medium and averaging the soft information computed during the first and second read operations to determine the value of each of the bits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.