Method and apparatus for managing corruption of flash memory contents
US9785362B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2015 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Sep 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1471
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to methods and apparatuses for eliminating or mitigating the effects of the corruption of contents in an external flash memory, such as that which can occur during a power interruption. Embodiments of the invention include methods to log external flash memory program and erase operations redundantly to dedicated buffer partitions in the flash memory itself. The log information from external serial flash memory is used to erase the sector that was being programmed or erased when power was removed. According to certain aspects, the redundant storage of log information in embodiments ensures that if one version of the log information is corrupted, the other version can be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.