Soft-decision input generation for data storage systems
US10061640B1 · kind B1 · utility
4Cited by
8References
18Claims
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Key dates
| Filing date | Mar 12, 2013 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Mar 12, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/10
- 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. Bit patterns provided by multiple reads of reference memory locations can be counted and 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.