发明名称 |
Data reading method and control circuit and memory controller using the same |
摘要 |
A data reading method for a flash memory module is provided. The method includes applying a bit-data-read voltage to get read data from memory cells of the flash memory module. The method also includes setting a minus-adjustment-bit-data-read voltage and a plus-adjustment-bit-data-read voltage corresponding to the bit-data-read voltage based on an error-distribution estimated value and applying the minus-adjustment-bit-data-read voltage and the plus-adjustment-bit-data-read voltage to obtain soft values corresponding to the read data from the memory cells. The method further includes calculating a soft-information estimated value corresponding to each bit of the read data according to the soft-values. Accordingly, the method can effectively obtain soft information. |
申请公布号 |
US8289771(B2) |
申请公布日期 |
2012.10.16 |
申请号 |
US20100861089 |
申请日期 |
2010.08.23 |
申请人 |
TSENG CHIEN-FU;LAI KUO-HSIN;PHISON ELECTRONICS CORP. |
发明人 |
TSENG CHIEN-FU;LAI KUO-HSIN |
分类号 |
G11C11/34;G11C16/06 |
主分类号 |
G11C11/34 |
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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