Soft-decision input generation for data storage systems
US8924824B1 · kind B1 · utility
40Cited by
7References
21Claims
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Key dates
| Filing date | Mar 12, 2013 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jun 28, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/45
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An error management system for a data storage device can generate soft-decision log-likelihood ratios (LLRs) using multiple reads of memory locations. 0-to-1 and 1-to-0 bit flip count data provided by multiple reads of reference memory locations can be used to generate probability data that is used to generate possible LLR values for decoding target pages. Possible LLR values are stored in one or more look-up tables.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.