发明名称 |
Nonvolatile semiconductor memory system having first and second error correction units |
摘要 |
A nonvolatile semiconductor memory system includes a semiconductor memory, at least one first error correction unit and at least one second error correction unit. The semiconductor memory stores a data frame encoded with LDPC codes. The at least one first error correction unit performs a first error correction for the data frame according to a first iterative decoding algorithm. The at least one second error correction unit performs a second error correction for the data frame which is failed to correct error by the at least one first error correction unit. The at least one second error correction unit performs the second error correction according to a second iterative decoding algorithm which uses a message having a larger number of quantization bits than that of the first iterative decoding algorithm.
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申请公布号 |
US8572465(B2) |
申请公布日期 |
2013.10.29 |
申请号 |
US20100848476 |
申请日期 |
2010.08.02 |
申请人 |
UCHIKAWA HIRONORI;KONDO YOSHIHISA;KABUSHIKI KAISHA TOSHIBA |
发明人 |
UCHIKAWA HIRONORI;KONDO YOSHIHISA |
分类号 |
G06F11/00 |
主分类号 |
G06F11/00 |
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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