Database of memory read thresholds
US8259506B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2010 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Mar 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/3404
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for data storage includes storing multiple sets each including one or more read thresholds for use in reading data from a plurality of analog memory cells. The memory cells are arranged in multiple erasure blocks each including multiple pages, and each set of read thresholds is associated with a respective page in one of the erasure blocks. A first page, which belongs to a given erasure block and is not associated with any of the stored sets of read thresholds, is read by retrieving a stored set of read thresholds that is associated with a second page in the given erasure block, adapting the retrieved set of read thresholds to match the first page, and reading the first page using the adapted set of read thresholds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.