Memory controller, nonvolatile storage module, access module and nonvolatile storage system
US8375160B2 · kind B2 · utility
7Cited by
3References
14Claims
0Family size
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Key dates
| Filing date | Nov 11, 2008 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Feb 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7211
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
When a write command is issued, new data is written into a free physical block of a nonvolatile memory (110). Here, if data of the same logical block has been written already, the block is erased and a recording state is judged by a recording state judgment unit (126). A physical block is swapped according to the number of write processes performed. Thus, it is possible to effectively perform a swap without increasing the number of write processes in a particular area, thereby increasing the lifetime of a nonvolatile storage module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.