Wear leveling with marching strategy
US9501396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2013 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Jun 17, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7211
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for managing utilization of a memory including a physical address space comprises mapping logical addresses of data objects to locations within the physical address space, and defining a plurality of address segments in the space as an active window. The method comprises allowing writes of data objects having logical addresses mapped to locations within the plurality of address segments in the active window. The method comprises, upon detection of a request to write a data object having a logical address mapped to a location outside the active window, updating the mapping so that the logical address maps to a selected location within the active window, and then allowing the write to the selected location. The method comprises maintaining access data indicating utilization of the plurality of address segments in the active window, and adding and removing address segments from the active window in response to the access data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.