Storage device including storage controller and method for operating storage controller
US11799497B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2022 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | May 14, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/1151
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for operating a storage controller includes receiving a first read command, performing a first read of data stored in a nonvolatile memory using a first read level and receiving a first read data, performing first error correction decoding of the first read data to determine whether the first error correction decoding succeeds, determining a second read level using a predetermined method, and determining a first soft decision offset value of the second read level, reading data stored in the nonvolatile memory using the determined second read level and the first soft decision offset value and receiving a first soft decision data, performing second error correction decoding of the first soft decision data to determine whether the second error correction decoding succeeds, and storing the second read level, a first method used to determine the second read level and the first soft decision offset value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.