Systems and methods for storing, retrieving, and adjusting read thresholds in flash memory storage system
US8467249B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2011 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Sep 27, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/26
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, system and computer-readable medium are provided for reading information from a memory unit. A request may be received to read information from a set of memory cells in the memory unit. At least one read threshold in an initial set of read thresholds may be perturbed to generate a perturbed set of read thresholds. The set of memory cells may be read using the perturbed set of read thresholds to provide a read result. The performance of said reading may be evaluated using the perturbed set of read thresholds. The at least one read threshold may be iteratively perturbed for each sequential read operation that the read performance is evaluated to be sub-optimal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.