Single read based soft-decision decoding of non-volatile memory
US9239754B2 · kind B2 · utility
12Cited by
11References
24Claims
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Key dates
| Filing date | Aug 4, 2012 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Apr 3, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/26
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A Solid-State Disk (SSD) controller performs soft-decision decoding with a single read, thus improving performance, power, and/or reliability of a storage sub-system, such as an SSD. In a first aspect, the controller generates soft-decision metrics from channel parameters of a hard decode read, without additional reads and/or array accesses. In a second aspect, the controller performs soft decoding using the generated soft-decision metrics. In a third aspect, the controller generates soft-decision metrics and performs soft decoding with the generated soft-decision metrics when a hard decode read error occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.