Memory system having hybrid density memory and methods for wear-leveling management and file distribution management thereof
US8015346B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2008 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Apr 12, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/5641
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a memory system having a hybrid density memory. The memory system includes a plurality of storage spaces whereby the storage spaces have respective levels of endurance and each storage space has a plurality of blocks and pre-determined weighting factors corresponding to the levels of endurance of the storage spaces. After executing a command of erasing a specific block, the system records the erase in accordance with the weighting factor of the storage space to which the specific block belongs. Whereby, the erase counts of all the blocks of different storage spaces are able to reach respective levels of endurance as simultaneously as possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.