Memory management method and storage controller
US10360986B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2018 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Jun 5, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C29/44
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory management method and a storage controller are provided. The memory management method includes: dividing a plurality of word lines of a first block into a plurality of word line groups and recording a characteristic value for each of the word line groups; accumulating the characteristic values of a second word line group and a third word line group when reading a first word line group, wherein the second word line group and the third word line group are directly adjacent to the first word line group; and reading the second word line group via a first optimal read voltage group when the characteristic value of the second word line group is greater than a first threshold, wherein the first optimal read voltage group is different from a default read voltage group corresponding to the second word line group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.