发明名称 |
INTER-CELL INTERFERENCE CANCELLATION IN FLASH MEMORIES |
摘要 |
Inter-cell interference cancellation is provided for flash memory devices. Data from a flash memory device is processed by obtaining one or more quantized threshold voltage values for at least one target cell of the flash memory device; obtaining one or more hard decision read values for at least one aggressor cell of the target cell; determining an aggressor state of the at least one aggressor cell; determining an interference amount based on the aggressor state; determining an adjustment to the quantized threshold voltage values based on the determined interference amount; and adjusting the quantized threshold voltage values based on the determined adjustment. The quantized threshold voltage values for at least one target cell are optionally re-used from a previous soft read retry operation. The adjusted quantized threshold voltage values are optionally used to determine reliability values and are optionally applied to a soft decision decoder and/or a buffer. |
申请公布号 |
US2013176779(A1) |
申请公布日期 |
2013.07.11 |
申请号 |
US201313778860 |
申请日期 |
2013.02.27 |
申请人 |
LSI CORPORATION;LSI CORPORATION |
发明人 |
CHEN ZHENGANG;HARATSCH ERICH F. |
分类号 |
G11C16/04 |
主分类号 |
G11C16/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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