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    • 5. 发明授权
    • Data error detection and correction in non-volatile memory devices
    • 非易失性存储器件中的数据错误检测和校正
    • US07865809B1
    • 2011-01-04
    • US12166191
    • 2008-07-01
    • Charles C. LeeI-Kang YuAbraham Chih-Kang MaMing-Shiang Shen
    • Charles C. LeeI-Kang YuAbraham Chih-Kang MaMing-Shiang Shen
    • H03M13/00
    • G06F11/1076G06F11/1068H03M13/153H03M13/1535H03M13/1545H03M13/6561
    • Data error detection and correction in non-volatile memory devices are disclosed. Data error detection and correction can be performed with software, hardware or a combination of both. Generally an error corrector is referred to as an ECC (error correction code). One of the most relevant codes using in non-volatile memory devices is based on BCH (Bose, Ray-Chaudhuri, Hocquenghem) code. In order to correct reasonable number (e.g., up to 8-bit (eight-bit)) of random errors in a chunk of data (e.g., a codeword of 4200-bit with 4096-bit information data), a BCH(4200,4096,8) is used in GF(213). ECC comprises encoder and decoder. The decoder further comprises a plurality of error detectors and one error corrector. The plurality of error decoders is configured for calculating odd terms of syndrome polynomial for multiple channels in parallel, while the error corrector is configured for sequentially calculating even terms of syndrome polynomial, key solver and error location.
    • 公开了非易失性存储器件中的数据错误检测和校正。 可以通过软件,硬件或两者的组合来执行数据错误检测和校正。 通常,误差校正器被称为ECC(纠错码)。 在非易失性存储器件中使用的最相关的代码之一是基于BCH(Bose,Ray-Chaudhuri,Hocquenghem)代码。 为了纠正数据块(例如,具有4096位信息数据的4200位的码字)中的合理数量(例如,高达8位(8位))的随机错误,BCH(4200, 4096,8)用于GF(213)。 ECC包括编码器和解码器。 解码器还包括多个误差检测器和一个误差校正器。 所述多个误差解码器被配置为并行地计算多个通道的奇数项的奇数项,而所述误差校正器被配置为顺序地计算校正子多项式,密钥求解器和误差位置的偶数项。