Soft-decision input generation for data storage systems
US10635524B1 · kind B1 · utility
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Key dates
| Filing date | Aug 24, 2018 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Aug 24, 2038 |
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.