Selection of memory blocks for garbage collection based on variable block life threshold
US9239780B2 · kind B2 · utility
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3References
18Claims
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Key dates
| Filing date | Sep 13, 2012 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Feb 19, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7205
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Memory blocks of a nonvolatile memory device are managed by identifying a full memory block, determining whether a block life of the full memory block exceeds a threshold value, and upon determining that the block life of the full memory block exceeds the threshold value, selecting the full memory block as a target block for garbage collection. The threshold of the block life is determined using an average write distance of logical pages programmed in the nonvolatile memory device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.