Systems and methods for data detection using distance based tuning
    1.
    发明授权
    Systems and methods for data detection using distance based tuning 有权
    使用基于距离调谐的数据检测系统和方法

    公开(公告)号:US08699167B2

    公开(公告)日:2014-04-15

    申请号:US13310028

    申请日:2011-12-02

    CPC分类号: H04L25/03254 H04L25/0305

    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 an equalizer circuit and a data detection circuit. The equalizer circuit is operable to filter a series of samples based at least in part on a filter coefficient and to provide a corresponding series of filtered samples. The data detection circuit includes: a core data detector circuit and a coefficient determination circuit. The core data detector circuit is operable to perform a data detection process on the series of filtered samples and to provide a most likely path and a next most likely path. The coefficient determination circuit operable to update the filter coefficient based at least in part on the most likely path and the next most likely path.

    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,公开了包括均衡器电路和数据检测电路的数据处理电路。 均衡器电路可操作以至少部分地基于滤波器系数对一系列样本进行滤波,并提供相应的一系列滤波样本。 数据检测电路包括:核心数据检测器电路和系数确定电路。 核心数据检测器电路可操作以对一系列经滤波的样本执行数据检测处理,并提供最可能的路径和下一个最可能的路径。 系数确定电路可操作以至少部分地基于最可能的路径和下一个最可能的路径来更新滤波器系数。

    Systems and Methods for Data Recovery
    2.
    发明申请
    Systems and Methods for Data Recovery 审中-公开
    数据恢复的系统和方法

    公开(公告)号:US20110205653A1

    公开(公告)日:2011-08-25

    申请号:US12712136

    申请日:2010-02-24

    IPC分类号: G11B27/36

    摘要: Various embodiments of the present invention provide systems and methods for identifying a reproducible location on a storage medium. As an example, a circuit is described that include a media defect detector and an anchor fixing circuit. The media defect detector is operable to identify a media defect, and the anchor fixing circuit is operable to identify a location relative to the media defect. The location is reproducible.

    摘要翻译: 本发明的各种实施例提供用于识别存储介质上的可再现位置的系统和方法。 作为示例,描述了包括介质缺陷检测器和锚固定电路的电路。 介质缺陷检测器可操作以识别介质缺陷,并且锚固定电路可操作以识别相对于介质缺陷的位置。 该位置是可重现的。

    Systems and Methods for Data Detection Using Distance Based Tuning
    3.
    发明申请
    Systems and Methods for Data Detection Using Distance Based Tuning 有权
    使用基于距离的调整进行数据检测的系统和方法

    公开(公告)号:US20120207201A1

    公开(公告)日:2012-08-16

    申请号:US13310028

    申请日:2011-12-02

    IPC分类号: H04L27/01

    CPC分类号: H04L25/03254 H04L25/0305

    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 an equalizer circuit and a data detection circuit. The equalizer circuit is operable to filter a series of samples based at least in part on a filter coefficient and to provide a corresponding series of filtered samples. The data detection circuit includes: a core data detector circuit and a coefficient determination circuit. The core data detector circuit is operable to perform a data detection process on the series of filtered samples and to provide a most likely path and a next most likely path. The coefficient determination circuit operable to update the filter coefficient based at least in part on the most likely path and the next most likely path.

    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,公开了包括均衡器电路和数据检测电路的数据处理电路。 均衡器电路可操作以至少部分地基于滤波器系数对一系列样本进行滤波,并提供相应的一系列滤波样本。 数据检测电路包括:核心数据检测器电路和系数确定电路。 核心数据检测器电路可操作以对一系列经滤波的样本执行数据检测处理,并提供最可能的路径和下一个最可能的路径。 系数确定电路可操作以至少部分地基于最可能的路径和下一个最可能的路径来更新滤波器系数。

    Systems and methods for variable thresholding in a pattern detector
    4.
    发明授权
    Systems and methods for variable thresholding in a pattern detector 有权
    模式检测器中可变阈值的系统和方法

    公开(公告)号:US08750447B2

    公开(公告)日:2014-06-10

    申请号:US12917756

    申请日:2010-11-02

    IPC分类号: H04L7/06

    摘要: Various embodiments of the present invention provide systems and methods for pattern identification. As an example, a pattern detection circuit is discussed that include: a distance calculation circuit operable to calculate a distance value corresponding to a difference between a first pattern and a second pattern; a threshold comparator circuit operable to compare the distance value to a variable threshold value; and a threshold value calculation circuit. The threshold value calculation circuit is operable to modify the variable threshold value based at least in part on the distance value.

    摘要翻译: 本发明的各种实施例提供了用于模式识别的系统和方法。 作为示例,讨论了包括:距离计算电路,用于计算对应于第一图案和第二图案之间的差的距离值; 阈值比较器电路,用于将距离值与可变阈值进行比较; 和阈值计算电路。 阈值计算电路可操作以至少部分地基于距离值来修改可变阈值。

    Systems and Methods for Variable Thresholding in a Pattern Detector
    5.
    发明申请
    Systems and Methods for Variable Thresholding in a Pattern Detector 有权
    模式检测器中可变阈值的系统和方法

    公开(公告)号:US20120106607A1

    公开(公告)日:2012-05-03

    申请号:US12917756

    申请日:2010-11-02

    IPC分类号: H04B3/46

    摘要: Various embodiments of the present invention provide systems and methods for pattern identification. As an example, a pattern detection circuit is discussed that include: a distance calculation circuit operable to calculate a distance value corresponding to a difference between a first pattern and a second pattern; a threshold comparator circuit operable to compare the distance value to a variable threshold value; and a threshold value calculation circuit. The threshold value calculation circuit is operable to modify the variable threshold value based at least in part on the distance value.

    摘要翻译: 本发明的各种实施例提供了用于模式识别的系统和方法。 作为示例,讨论了包括:距离计算电路,用于计算对应于第一图案和第二图案之间的差的距离值; 阈值比较器电路,用于将距离值与可变阈值进行比较; 和阈值计算电路。 阈值计算电路可操作以至少部分地基于距离值来修改可变阈值。

    Systems and methods for SNR measurement using equalized data
    6.
    发明授权
    Systems and methods for SNR measurement using equalized data 有权
    使用均衡数据进行SNR测量的系统和方法

    公开(公告)号:US08929017B2

    公开(公告)日:2015-01-06

    申请号:US13316953

    申请日:2011-12-12

    IPC分类号: G11B5/035 G11B5/596 G11B20/10

    摘要: Various embodiments of the present invention provide systems and methods for data processing. For example, a data processing system is discussed that includes: an equalizer circuit, a signal to noise ratio calculation circuit, and a parameter adjustment circuit. The equalizer circuit is operable to equalize a data input to yield an equalized output. The signal to noise ratio calculation circuit is operable to calculate a signal to noise ratio of the equalized output based at least in part on a noise power derived from the equalized output. The parameter adjustment circuit is operable to adjust a parameter based at least in part on the signal to noise ratio.

    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,讨论了包括均衡器电路,信噪比计算电路和参数调整电路的数据处理系统。 均衡器电路可操作以均衡数据输入以产生均衡的输出。 信噪比计算电路可用于至少部分地基于从均衡输出得到的噪声功率来计算均衡输出的信噪比。 参数调整电路可操作以至少部分地基于信噪比来调整参数。

    Systems and methods for parity shared data encoding
    7.
    发明授权
    Systems and methods for parity shared data encoding 有权
    奇偶校验共享数据编码的系统和方法

    公开(公告)号:US08862960B2

    公开(公告)日:2014-10-14

    申请号:US13269852

    申请日:2011-10-10

    摘要: Various embodiments of the present invention provide systems and methods for data processing. For example, a low density parity check encoding system is described that includes: a low density parity check encoder circuit, and a combining circuit. The low density parity check encoder circuit is operable to encode a first data set to yield a first low density parity check encoded sub-codeword, and to encode a second data set to yield a second low density parity check encoded sub-codeword. The combining circuit is operable to: generate a composite low density parity check sub-codeword by mathematically combining at least the first low density parity check encoded sub-codeword and the second low density parity check encoded sub-codeword; and combine at least the first low density parity check encoded sub-codeword and the composite low density parity check sub-codeword into an overall codeword.

    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,描述了一种低密度奇偶校验编码系统,其包括:低密度奇偶校验编码器电路和组合电路。 低密度奇偶校验编码器电路可操作以对第一数据集进行编码,以产生第一低密度奇偶校验编码子码字,并对第二数据集进行编码以产生第二低密度奇偶校验编码子码字。 组合电路可操作用于:通过至少第一低密度奇偶校验编码子码字和第二低密度奇偶校验编码子码字数学地组合来生成复合低密度奇偶校验子码字; 并且将至少第一低密度奇偶校验编码子码字和复合低密度奇偶校验子码字组合成总码字。

    Systems and methods for pattern dependent target adaptation
    9.
    发明授权
    Systems and methods for pattern dependent target adaptation 有权
    用于模式相关目标适应的系统和方法

    公开(公告)号:US08767333B2

    公开(公告)日:2014-07-01

    申请号:US13239719

    申请日:2011-09-22

    IPC分类号: G11B5/35

    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 noise predictive filter circuit, a data detector circuit, and a first and a second pattern dependent adaptive target circuits. The noise predictive filter circuit includes at least a first pattern dependent filter circuit operable to perform noise predictive filtering on a data input for a first pattern using a first adaptive target to yield a first noise predictive output, and a second pattern dependent filter circuit operable to perform noise predictive filtering on the data input for a second pattern using a second adaptive target to yield a second noise predictive output. The data detector circuit is operable to apply a data detection algorithm to the first noise predictive output and the second noise predictive output to yield a detected output. The first pattern dependent adaptive target circuit is operable to adaptively calculate the first adaptive target based at least in part on the first noise predictive output and a training sequence. The second pattern dependent adaptive target circuit operable to adaptively calculate the second adaptive target based at least in part on the second noise predictive output and the training sequence.

    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,公开了包括噪声预测滤波器电路,数据检测器电路以及第一和第二图案相关自适应目标电路的数据处理电路。 所述噪声预测滤波器电路至少包括第一模式相关滤波器电路,其可操作以使用第一自适应目标对第一模式的数据输入执行噪声预测滤波以产生第一噪声预测输出,以及第二模式相关滤波器电路, 使用第二自适应目标对第二模式的数据输入执行噪声预测滤波,以产生第二噪声预测输出。 数据检测器电路可操作以将数据检测算法应用于第一噪声预测输出和第二噪声预测输出,以产生检测到的输出。 第一模式相关自适应目标电路可操作以至少部分地基于第一噪声预测输出和训练序列自适应地计算第一自适应目标。 第二模式相关自适应目标电路可操作以至少部分地基于第二噪声预测输出和训练序列自适应地计算第二自适应目标。

    Systems and methods for ADC based timing and gain control
    10.
    发明授权
    Systems and methods for ADC based timing and gain control 有权
    基于ADC的定时和增益控制的系统和方法

    公开(公告)号:US08669891B2

    公开(公告)日:2014-03-11

    申请号:US13186267

    申请日:2011-07-19

    IPC分类号: H03M3/00

    CPC分类号: H03M1/1028 H03M1/12

    摘要: Various embodiments of the present invention provide circuits, systems and methods for data processing. For example, a data processing circuit is discussed that includes: an analog to digital converter circuit, a target response circuit, and a timing circuit. The analog to digital converter circuit is operable to receive a data input and to provide corresponding digital samples synchronous to a sampling phase. The sampling phase corresponds to a phase feedback. The target response circuit is operable to provide an expected output corresponding to a known input. The timing circuit is operable to generate the phase feedback based at least in part on values derived from the expected output.

    摘要翻译: 本发明的各种实施例提供用于数据处理的电路,系统和方法。 例如,讨论了一种数据处理电路,其包括:模数转换器电路,目标响应电路和定时电路。 模数转换器电路可操作以接收数据输入并提供与采样相位同步的相应数字采样。 采样相位对应于相位反馈。 目标响应电路可操作以提供对应于已知输入的预期输出。 定时电路可操作以至少部分地基于从预期输出导出的值来产生相位反馈。