发明授权
US08996958B2 Method, device and computer program product for decoding a codeword
有权
用于解码码字的方法，设备和计算机程序产品
- 专利标题： Method, device and computer program product for decoding a codeword
- 专利标题（中）： 用于解码码字的方法，设备和计算机程序产品
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申请号： US13574368申请日： 2011-01-27
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公开(公告)号： US08996958B2公开(公告)日： 2015-03-31
- 发明人: Roy D. Cideciyan , Ilias Iliadis , Roman Pletka
- 申请人： Roy D. Cideciyan , Ilias Iliadis , Roman Pletka
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理机构： Cantor Colburn LLP
- 优先权： EP10151942 20100128
- 国际申请： PCT/IB2011/050355 WO 20110127
- 国际公布： WO2011/092641 WO 20110804
- 主分类号： G11C29/00
- IPC分类号： G11C29/00 ; G06F11/10
摘要：
A method and apparatus for decoding a codeword received from a flash memory. The flash memory comprises multi-level flash memory cells, wherein each multi-level flash memory cell stores one symbol of the codeword. An ECC decoder is arranged for decoding the codeword into a decoded codeword and correcting a maximum number of errors. The method determines the number of errors in the codeword. If the number of errors is more than the maximum number of errors that the ECC decoder can correct, the method generates modified codewords, calculates a corrective effect of a modified codeword, and determines a decoded codeword based on the corrective effect.
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