- 专利标题: SYSTEM AND METHOD FOR ADAPTIVE MULTIPLE READ OF NAND FLASH
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申请号: US16573962申请日: 2019-09-17
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公开(公告)号: US20200012561A1公开(公告)日: 2020-01-09
- 发明人: Guangming Lu
- 申请人: Guangming Lu
- 主分类号: G06F11/10
- IPC分类号: G06F11/10 ; G11C16/28 ; G11C29/52 ; G11C11/56 ; G11C16/26 ; G11C29/02 ; H03M13/29 ; H03M13/11 ; H03M13/37 ; H03M13/00
摘要:
A system and method for adaptive multiple read of NAND flash memory. A solid state drive may employ adaptive multiple-read to perform enhanced performance error correction using soft decisions without a performance penalty that otherwise might result from performing unnecessary reads. The soft decision error correcting algorithm may employ lookup tables containing log likelihood ratios. The method may include performing one or more read operations to obtain one or more raw data words for a code word, attempting to decode the code words using the one or more raw data words, and performing additional read operations when the decoding attempt fails. This process may be repeated until a decoding attempt succeeds.
公开/授权文献
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