Semiconductor memory device
US8725930B2 · kind B2 · utility
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3References
4Claims
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Key dates
| Filing date | Dec 15, 2009 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Jul 3, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1441
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A command analyzer 160 determines whether or not a first write command after power-on is issued. A new block reserve determinator 170 determines that a new physical block is reserved, in a case where the command analyzer 160 determines that first writing command after power-on is issued and the physical block corresponding to a logical address at which a host device requests transmit is in a written state. At this time, the semiconductor memory device writes data to the new physical block. Thereby, data written before power disconnection does not been destroyed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.