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    Multiple track detection
    1.
    发明授权
    Multiple track detection 有权
    多轨检测

    公开(公告)号：US09129648B2

    公开(公告)日：2015-09-08

    申请号：US14158739

    申请日：2014-01-17

    Applicant: LSI Corporation

    Inventor： George Mathew ,  Bruce A. Wilson ,  Jongseung Park

    IPC: G11B20/10 ,  G11B5/09

    CPC classification number: G11B20/10046 ,  G11B5/09 ,  G11B20/10055 ,  G11B20/10222 ,  G11B20/10268

    Abstract: An apparatus for reading data includes an array of analog inputs operable to receive analog signals retrieved from a magnetic storage medium, wherein the analog inputs correspond to multiple data tracks on the magnetic storage medium, and wherein the number of analog inputs in the array of analog inputs is greater than the number of data tracks being read, at least one joint equalizer operable to filter the analog inputs to yield an equalized output for each of the data tracks being read, and at least one data detector operable to apply a detection algorithm to the equalized output from the joint equalizer to yield detected values for each of the data tracks being read.

    Abstract translation: 一种用于读取数据的装置包括可操作以接收从磁存储介质检索的模拟信号的模拟输入阵列，其中所述模拟输入对应于所述磁存储介质上的多个数据磁道，并且其中所述模拟输入阵列中的模拟输入的数量 至少一个联合均衡器可操作以对模拟输入进行滤波，以产生正被读取的每个数据轨道的均衡输出，以及至少一个数据检测器，可操作以将检测算法应用于 来自联合均衡器的均衡输出，以产生正被读取的每个数据轨道的检测值。

    Adaptive calibration of noise predictive finite impulse response filter based on decoder convergence
    2.
    发明授权
    Adaptive calibration of noise predictive finite impulse response filter based on decoder convergence 有权
    基于解码器收敛的噪声预测有限脉冲响应滤波器的自适应校准

    公开(公告)号：US09202519B2

    公开(公告)日：2015-12-01

    申请号：US14251350

    申请日：2014-04-11

    Applicant: LSI Corporation

    Inventor： Bruce A. Wilson ,  Haitao Xia ,  Seongwook Jeong ,  Weijun Tan

    IPC: G11B20/18 ,  G11B20/10 ,  H03M13/11

    CPC classification number: G11B20/1833 ,  G11B20/10046 ,  G11B20/10509 ,  G11B2020/185 ,  G11B2020/1856 ,  G11B2020/1863 ,  H03M13/1142

    Abstract: A communication system and a noise predictive calibration method are disclosed. The communication system includes a decoder configured to decode an input signal, wherein the decoder produces one of: a converged data output when the decoder decodes the input signal successfully, and a non-converged data output when the decoder decodes the input signal unsuccessfully. The communication system also includes a convergence monitor configured to determine a calibration procedure based on at least one of: a number of times where the decoder decodes successfully, and a number of times where the decoder decodes unsuccessfully. A noise predictive calibration circuit is configured to utilize output produced by the decoder without qualification when the convergence monitor indicates utilization of a first calibration procedure. The noise predictive calibration circuit is further configured to utilize only the converged data output produced by the decoder when the convergence monitor indicates utilization of a second calibration procedure.

    Abstract translation: 公开了通信系统和噪声预测校准方法。 通信系统包括：解码器，被配置为对输入信号进行解码，其中解码器产生以下之一：当解码器成功地解码输入信号时的收敛数据输出;当解码器解码输入信号失败时，输出非收敛数据。 通信系统还包括汇聚监视器，其被配置为基于以下中的至少一个来确定校准过程：解码器成功解码解码的次数以及解码器不成功解码的次数。 当收敛监视器指示使用第一校准过程时，噪声预测校准电路被配置为利用解码器产生的输出而不限定。 噪声预测校准电路还被配置为当会聚监视器指示使用第二校准过程时仅利用由解码器产生的会聚数据输出。

    Systems and methods for enhanced data encoding and decoding
    3.
    发明授权
    Systems and methods for enhanced data encoding and decoding 有权
    用于增强数据编码和解码的系统和方法

    公开(公告)号：US09196299B2

    公开(公告)日：2015-11-24

    申请号：US14025104

    申请日：2013-09-12

    Applicant: LSI Corporation

    Inventor： Bruce A. Wilson ,  Shaohua Yang ,  Shu Li

    IPC: G06F11/10 ,  G11B20/18 ,  H03M13/00

    CPC classification number: G11B20/1833 ,  G06F11/1076 ,  G11B2020/1853 ,  H03M13/00 ,  H03M13/1102 ,  H03M13/2909 ,  H03M13/293 ,  H03M13/41 ,  H03M13/6325 ,  H03M13/6343

    Abstract: Systems and methods relating generally to data processing, and more particularly to systems and methods for encoding and decoding information. As an example, a method is discussed that includes: applying a first level encoding on a section by section basis to a first data portion to yield a first encoding data including a first encoded portion; applying a second level encoding on a section by section basis to the first encoded portion to yield a first parity set; applying a third level encoding on a section by section basis to a combination of the first data portion, the second data portion, and a portion derived from the first encoded portion to yield a second encoding data.

    Abstract translation: 一般涉及数据处理的系统和方法，更具体地涉及用于编码和解码信息的系统和方法。 作为示例，讨论了一种方法，其包括：将逐级编码应用于第一数据部分，以产生包括第一编码部分的第一编码数据; 对第一编码部分逐个应用第二级编码以产生第一奇偶校验集; 对于第一数据部分，第二数据部分和从第一编码部分导出的部分的组合，逐个应用第三级编码，以产生第二编码数据。

    Non-Decision Directed Magnetoresistive Asymetry Estimation
    5.
    发明申请
    Non-Decision Directed Magnetoresistive Asymetry Estimation 有权
    非决策定向磁阻非对称估计

    公开(公告)号：US20150255109A1

    公开(公告)日：2015-09-10

    申请号：US14200228

    申请日：2014-03-07

    Applicant: LSI Corporation

    Inventor： Bruce A. Wilson ,  Nayak Ratnakar Aravind ,  Haitao Xia

    IPC: G11B20/10

    CPC classification number: G11B20/10324 ,  G11B5/012 ,  G11B5/455 ,  G11B20/10009 ,  G11B20/10027 ,  G11B20/10037 ,  G11B2005/0016

    Abstract: Systems and methods for magnetoresistive asymmetry estimation may include, but are not limited to, operations for: receiving a magnetic read head transducer output; computing a mean value of the magnetic read head transducer output; computing a median value of the magnetic read head transducer output; and applying a correction coefficient to a magnetic read head detector input according to at least the mean value of the magnetic read head transducer output and the median value of the magnetic read head transducer output.

    Abstract translation: 用于磁阻非对称估计的系统和方法可以包括但不限于用于：接收磁读头传感器输出的操作; 计算磁读头传感器输出的平均值; 计算磁读头传感器输出的中值; 以及至少根据磁读头变换器输出的平均值和磁读头变换器输出的中值，向磁读头检测器输入施加校正系数。

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