Generating read thresholds using gradient descent and without side information
US8923062B1 · kind B1 · utility
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25Claims
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Key dates
| Filing date | Jul 5, 2013 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jul 5, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A next read threshold is determined by determining a first number of solid state storage cells having a stored voltage which falls into a first voltage range and determining a second number of solid state storage cells having a stored voltage which falls into a second voltage range. A gradient is determine by taking a difference between the first number of solid state storage cells and the second number of solid state storage cells. The next read threshold is determined based at least in part on the gradient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.