Process for refreshing a dynamic random access memory and corresponding device
US7193918B2 · kind B2 · utility
7Cited by
14References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2004 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Apr 18, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/4061
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The content of a few pages of the dynamic random access memory is backed up, then one tries to refresh them less quickly, for example two times less quickly, and one observes whether this does or does not cause errors. The operation is repeated on the entire memory. Depending on the number of errors that have appeared on the pages refreshed less often, the refresh period is decreased or increased. Thus, the memory self-adjusts its refresh period to what is necessary for it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.