SSD for long term data retention
US10795765B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 3, 2019 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Oct 3, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/1111
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for long term data retention in a flash memory. In some embodiments, the method includes transitioning the flash memory to a long term data retention state by re-storing first encoded data, the first encoded data being initially stored in the flash memory at a first code rate. The re-storing may include determining a second code rate, lower than the first code rate; reading the first encoded data from the flash memory; decoding the first encoded data at the first code rate to obtain first decoded data; encoding the first decoded data at the second code rate to form second encoded data; and storing the second encoded data in the flash memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.