Memory refresh method and system
US7580309B2 · kind B2 · utility
24Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2007 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Apr 10, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory refresh method applicable in a system memory is disclosed. The memory system comprises a plurality of memory ranks. It is to determine whether an access request corresponds to the memory rank, and an idle auto-refresh number of the memory rank is calculated if there is no access request corresponds to the memory rank. The memory rank is switched from an auto-refresh mode to a self-refresh mode when the idle auto-refresh number of the memory rank reaches a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.