Systems and Methods for Utilizing Circulant Parity in a Data Processing System
    11.
    发明申请
    Systems and Methods for Utilizing Circulant Parity in a Data Processing System 有权
    在数据处理系统中利用循环奇偶校验的系统和方法

    公开(公告)号:US20110029839A1

    公开(公告)日:2011-02-03

    申请号:US12510885

    申请日:2009-07-28

    IPC分类号: H03M13/05 H03M13/09 G06F11/10

    摘要: Various embodiments of the present invention provide systems and methods for data processing. For example, a method for data processing is disclosed that includes receiving a codeword that has at least a first circulant with a plurality of data bits and a first circulant parity bit, a second circulant with a plurality of data bits and a second circulant parity bit, and one or more codeword parity bits. The methods further include decoding the codeword using the one or more codeword parity bits to access the first circulant and the second circulant, performing a first circulant parity check on the first circulant, and performing a second circulant parity check on the second circulant.

    摘要翻译: 本发明的各种实施例提供了用于数据处理的系统和方法。 例如,公开了一种用于数据处理的方法,其包括:接收具有至少第一循环的码字,其具有多个数据位和第一循环奇偶校验位,第二循环具有多个数据位和第二循环奇偶校验位 ,以及一个或多个码字奇偶校验位。 所述方法还包括使用所述一个或多个码字奇偶校验比特来解码所述码字,以访问所述第一循环和所述第二循环,对所述第一循环执行第一循环奇偶校验,以及对所述第二循环执行第二循环奇偶校验。

    Turbo-equalization methods for iterative decoders
    13.
    发明授权
    Turbo-equalization methods for iterative decoders 有权
    用于迭代解码器的Turbo均衡方法

    公开(公告)号:US08291299B2

    公开(公告)日:2012-10-16

    申请号:US12524418

    申请日:2009-04-02

    IPC分类号: H03M13/00

    摘要: Certain embodiments of the present invention are improved turbo-equalization methods for decoding encoded codewords. In one embodiment, in global decoding iteration i, the magnitude values of all decoder-input LLR values (Lch) are adjusted based on the number b of unsatisfied check nodes in the decoded codeword produced by global iteration i−1. The improved turbo-equalization methods can be used as the sole turbo-equalization method for a given global decoding session, or interleaved with other turbo-equalization methods.

    摘要翻译: 本发明的某些实施例是用于解码编码码字的改进的turbo均衡方法。 在一个实施例中,在全局解码迭代i中,基于由全局迭代i-1产生的解码码字中的不满足的校验节点的数量b来调整所有解码器输入的LLR值(Lch)的幅度值。 改进的turbo均衡方法可以用作给定全局解码会话的唯一turbo均衡方法,或者与其他turbo均衡方法交织。

    Turbo-Equalization Methods For Iterative Decoders
    14.
    发明申请
    Turbo-Equalization Methods For Iterative Decoders 有权
    用于迭代解码器的涡轮均衡方法

    公开(公告)号:US20110311002A1

    公开(公告)日:2011-12-22

    申请号:US12524418

    申请日:2009-04-02

    IPC分类号: H04L27/06

    摘要: Certain embodiments of the present invention are improved turbo-equalization methods for decoding encoded codewords. In one embodiment, in global decoding iteration i, the magnitude values of all decoder-input LLR values (Lch) are adjusted based on the number b of unsatisfied check nodes in the decoded codeword produced by global iteration i−1. The improved turbo-equalization methods can be used as the sole turbo-equalization method for a given global decoding session, or interleaved with other turbo-equalization methods.

    摘要翻译: 本发明的某些实施例是用于解码编码码字的改进的turbo均衡方法。 在一个实施例中,在全局解码迭代i中,基于由全局迭代i-1产生的解码码字中的不满足的校验节点的数量b来调整所有解码器输入的LLR值(Lch)的幅度值。 改进的turbo均衡方法可以用作给定全局解码会话的唯一turbo均衡方法,或者与其他turbo均衡方法交织。

    Systems and methods for power measurement in a data processing system
    15.
    发明授权
    Systems and methods for power measurement in a data processing system 有权
    数据处理系统中功率测量的系统和方法

    公开(公告)号:US08856575B2

    公开(公告)日:2014-10-07

    申请号:US13284684

    申请日:2011-10-28

    IPC分类号: G06F1/00 G06F11/30 G06F1/30

    CPC分类号: G06F11/3062 G06F1/30

    摘要: Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is disclosed that includes: a data detector circuit, a data decoder circuit, and a power usage control circuit. The data detector circuit is operable to apply a data detection algorithm to a data input to yield a detected output. The data decoder circuit is operable to apply a data decode algorithm to a data set derived from the detected output to yield a decoded output. The power usage control circuit is operable to force a defined number of global iterations applied to the data input by the data detector circuit and the data decoder circuit regardless of convergence of the data decode algorithm.

    摘要翻译: 本发明的各种实施例提供了用于数据处理的系统和方法。 作为示例,公开了一种数据处理电路,其包括:数据检测器电路,数据解码器电路和电力使用控制电路。 数据检测器电路可操作以将数据检测算法应用于数据输入以产生检测到的输出。 数据解码器电路可操作以将数据解码算法应用于从检测到的输出导出的数据集,以产生解码输出。 功率使用控制电路可操作以强制对数据检测器电路和数据解码器电路输入的数据施加的定义数量的全局迭代,而与数据解码算法的收敛无关。

    Apparatus and method for breaking trapping sets
    17.
    发明授权
    Apparatus and method for breaking trapping sets 有权
    用于打破陷阱的装置和方法

    公开(公告)号:US08781033B2

    公开(公告)日:2014-07-15

    申请号:US13533207

    申请日:2012-06-26

    IPC分类号: H04L27/06

    摘要: An error correction data processing apparatus includes a noise predictive calibration circuit operable to calibrate a first set of filter coefficients based on a first data set and a second set of filter coefficients based on a second data set, and includes a first noise predictive detector operable to receive the first set of filter coefficients. The apparatus further includes a decoder operable to perform a first global iteration with the first noise predictive detector and determine a violation check count value, and a second noise predictive detector operable to receive the second set of filter coefficients if the violation check count value is less than a predetermined value or receive the first set of filter coefficients if the violation check count value is greater than the predetermined value.

    摘要翻译: 纠错数据处理装置包括噪声预测校准电路,其可操作以基于第一数据集和基于第二数据集的第二组滤波器系数来校准第一组滤波器系数,并且包括第一噪声预测检测器,其可操作以 接收第一组滤波器系数。 所述装置还包括解码器,其可操作以与所述第一噪声预测检测器执行第一全局迭代并确定违反检查计数值;以及第二噪声预测检测器,其可操作以在所述违反检查计数值较小时接收所述第二组滤波器系数 如果违反检查计数值大于预定值,则接收第一组滤波器系数。

    Correcting errors in miscorrected codewords using list decoding
    19.
    发明授权
    Correcting errors in miscorrected codewords using list decoding 有权
    使用列表解码校正错误码字中的错误

    公开(公告)号:US08898539B2

    公开(公告)日:2014-11-25

    申请号:US13611158

    申请日:2012-09-12

    IPC分类号: H03M13/00

    摘要: A receive path of a communications system comprises an error-correction decoder, an error-detection decoder, and a codeword adjuster. The error-correction decoder performs error-correction decoding on a received codeword to generate a valid codeword. The error-detection decoder performs error-detection decoding on the valid codeword to determine whether or not the valid codeword is the correct codeword that was transmitted. If the valid codeword is not the correct codeword, then the codeword adjuster generates an adjusted valid codeword by applying an error vector to the valid codeword. The error-detection decoder performs error-detection decoding on the adjusted valid codeword to determine whether or not the adjusted valid codeword is the correct codeword. When the error-correction decoder generates an incorrect valid codeword, adjusting the valid codeword enables the receive path to recover the correct codeword without retransmitting or re-detecting the codeword.

    摘要翻译: 通信系统的接收路径包括纠错解码器,错误检测解码器和码字调节器。 误差校正解码器对接收的码字进行纠错解码,以生成有效的码字。 错误检测解码器对有效码字执行错误检测解码,以确定有效码字是否是发送的正确码字。 如果有效码字不是正确的码字,则码字调节器通过向有效码字应用误差向量来生成经调整的有效码字。 错误检测解码器对经调整的有效码字执行错误检测解码,以确定调整后的有效码字是否为正确码字。 当纠错解码器产生不正确的有效码字时,调整有效码字使得接收路径能够恢复正确的码字而不重传或重新检测码字。

    Adaptive calibration of noise predictive finite impulse response filter
    20.
    发明授权
    Adaptive calibration of noise predictive finite impulse response filter 有权
    噪声预测有限脉冲响应滤波器的自适应校准

    公开(公告)号:US08719682B2

    公开(公告)日:2014-05-06

    申请号:US13525182

    申请日:2012-06-15

    IPC分类号: G06F11/07

    摘要: 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.

    摘要翻译: 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。