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    • 43. 发明授权
    • Error injection for LDPC retry validation
    • 错误注入用于LDPC重试验证
    • US08930794B2
    • 2015-01-06
    • US13483982
    • 2012-05-30
    • Yang HanShaohua Yang
    • Yang HanShaohua Yang
    • H03M13/00G06F11/00
    • H03M13/6343H03M13/1142H03M13/451H03M13/6331
    • The present inventions are related to systems and methods for validating retry features in LDPC decoders and in systems incorporating LDPC decoders. For example, a data processing circuit is disclosed that includes a low density parity check decoder and is operable to correct errors in a data set. The data processing circuit includes at least one retry feature operable to assist in correcting the errors that are not corrected without the at least one retry feature. A retry validation circuit in the data processing circuit is operable to inject errors in the data set to trigger the at least one retry feature.
    • 本发明涉及用于验证LDPC解码器中的重试特征的系统和方法以及结合LDPC解码器的系统。 例如,公开了一种数据处理电路,其包括低密度奇偶校验解码器,并且可操作以校正数据集中的错误。 所述数据处理电路包括至少一个重试特征,其可操作以帮助校正在没有所述至少一个重试特征的情况下未校正的错误。 数据处理电路中的重试验证电路可操作以在数据集中注入错误以触发至少一个重试特征。
    • 45. 发明申请
    • Adaptive Calibration of Noise Predictive Finite Impulse Response Filter
    • 噪声预测有限脉冲响应滤波器的自适应校准
    • US20130339827A1
    • 2013-12-19
    • US13525182
    • 2012-06-15
    • Yang HanShaohua YangFan ZhangZongwang LiChangyou Xu
    • Yang HanShaohua YangFan ZhangZongwang LiChangyou Xu
    • G06F11/07
    • G11B20/10046H03M13/1111H03M13/2957H03M13/6325H03M13/6343H04L25/03171H04L25/03318H04L25/067
    • Various embodiments of the present inventions are related to adaptive calibration of NPFIR filters in a data detector. For example, an apparatus for calibrating a noise predictive filter is disclosed, including a data detector operable to generate detected values for data sectors and having an embedded noise predictive finite impulse response filter. The apparatus also includes a comparator operable to determine whether a quality metric for a current one of the data sectors meets a noise threshold. The apparatus also includes a filter calibration circuit operable to adapt a number of filter coefficients for the noise predictive finite impulse response filter based on the detected values for the data sectors, and to omit the detected values for the current one of the data sectors from adaptation for one of the filter coefficients if the quality metric for the current one of the data sectors does not meet the noise threshold.
    • 本发明的各种实施例涉及数据检测器中的NPFIR滤波器的自适应校准。 例如,公开了一种用于校准噪声预测滤波器的装置,包括可操作以产生数据扇区的检测值并具有嵌入式噪声预测有限脉冲响应滤波器的数据检测器。 该装置还包括比较器,可操作以确定当前数据扇区的质量度量是否符合噪声阈值。 该装置还包括滤波器校准电路,其可操作以基于用于数据扇区的检测值来适应用于噪声预测有限脉冲响应滤波器的多个滤波器系数,并且从适配中省去当前数据扇区的检测值 对于当前一个数据扇区的质量度量不满足噪声阈值的滤波器系数之一。
    • 47. 发明申请
    • Error Injection for LDPC Retry Validation
    • 用于LDPC重试验证的错误注入
    • US20130326302A1
    • 2013-12-05
    • US13483982
    • 2012-05-30
    • Yang HanShaohua Yang
    • Yang HanShaohua Yang
    • H03M13/05G06F11/10
    • H03M13/6343H03M13/1142H03M13/451H03M13/6331
    • The present inventions are related to systems and methods for validating retry features in LDPC decoders and in systems incorporating LDPC decoders. For example, a data processing circuit is disclosed that includes a low density parity check decoder and is operable to correct errors in a data set. The data processing circuit includes at least one retry feature operable to assist in correcting the errors that are not corrected without the at least one retry feature. A retry validation circuit in the data processing circuit is operable to inject errors in the data set to trigger the at least one retry feature.
    • 本发明涉及用于验证LDPC解码器中的重试特征的系统和方法以及结合LDPC解码器的系统。 例如,公开了一种数据处理电路,其包括低密度奇偶校验解码器,并且可操作以校正数据集中的错误。 所述数据处理电路包括至少一个重试特征,其可操作以帮助校正在没有所述至少一个重试特征的情况下未校正的错误。 数据处理电路中的重试验证电路可操作以在数据集中注入错误以触发至少一个重试特征。