Read-write method and apparatus for LEPS soft decoding estimation, and electronic device
US12088323B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2020 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Nov 25, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/5648
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A read-write method includes: sequentially writing, in a first direction, a code word obtained by information-bit encoding into a target memory cell in each layer of memory cell array in the three-dimensional memory; randomly reading the target memory cell in each layer of memory cell array, or sequentially reading the target memory cell in each layer of memory cell array in a second direction; and determining an LLR value of a current target memory cell according to a storage time corresponding to the current target memory cell when reading, a threshold voltage partition corresponding to the current target memory cell when reading, a comprehensive distribution state corresponding to the current target memory cell when reading, and a pre-established LLR table, so as to perform a soft decoding operation on the code word in the current target memory cell based on the LLR value of the current target memory cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.