Flash memory management method that is resistant to data corruption by power loss
US7275140B2 · kind B2 · utility
21Cited by
9References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2006 |
| Grant date | Sep 25, 2007 |
| Priority date | — |
| Expiry date | Mar 9, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention includes a method of managing page-based data storage media such as flash media, a system that uses the method, and a computer-readable storage medium bearing code for implementing the method. For each page, a corresponding risk zone, of other pages whose data are put at risk of corruption if writing to the page is interrupted, is identified. When a page is selected for writing new data, the written pages in its risk zone are copied to a log. As necessary, corrupt data are replaced with corresponding data from the log.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.