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41. 发明授权

US08689062B2 Systems and methods for parameter selection using reliability information 有权
标题翻译：使用可靠性信息进行参数选择的系统和方法
公开(公告)号：US08689062B2
公开(公告)日：2014-04-01
申请号：US13251342
申请日：2011-10-03
申请人： Haitao Xia , Shaohua Yang , Kenneth M. Hall , Mark A. Landreth
发明人： Haitao Xia , Shaohua Yang , Kenneth M. Hall , Mark A. Landreth
IPC分类号： G06F11/00
CPC分类号： G11B27/36 , G11B2220/2516 , H03M13/2957 , H03M13/6343
摘要： Various embodiments of the present invention provide systems and methods for data processing. For example, a data processing system is disclosed that includes: a data detector circuit, and a reliability monitor circuit. The data detector circuit is operable to apply a data detection algorithm to a data set to yield a detected output that includes soft data. The reliability monitor circuit is operable to determine a proxy error count based at least in part on the soft data, and to modify a parameter governing an operation of the data processing system based at least in part on the proxy error count.
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，公开了一种数据处理系统，其包括：数据检测器电路和可靠性监视电路。数据检测器电路可操作以将数据检测算法应用于数据集，以产生包括软数据的检测输出。可靠性监控电路可操作以至少部分地基于软数据来确定代理错误计数，并且至少部分地基于代理错误计数来修改控制数据处理系统的操作的参数。

42. 发明授权

US08630053B2 Systems and methods for parameter modification during data processing retry 有权
标题翻译：数据处理重试期间参数修改的系统和方法
公开(公告)号：US08630053B2
公开(公告)日：2014-01-14
申请号：US13372600
申请日：2012-02-14
申请人： Shaohua Yang , Jin Lu , Haitao Xia
发明人： Shaohua Yang , Jin Lu , Haitao Xia
IPC分类号： G11B5/09
CPC分类号： G11B5/09 , G11B20/10009
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: a buffer circuit, an equalizer circuit, a data processing circuit, and a retry determination circuit. The buffer is operable to store digital samples as a buffered output, and the equalizer circuit is operable to equalize the buffered output using a first equalization target to yield a first equalized output, and to yield a second equalized output using a second equalization target. The retry determination circuit is operable to select the second equalization target based at least in part on an occurrence of an error.
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，讨论了包括缓冲电路，均衡器电路，数据处理电路和重试确定电路的数据处理系统。缓冲器可操作以将数字样本存储为缓冲输出，并且均衡器电路可操作以使用第一均衡目标来均衡缓冲输出，以产生第一均衡输出，并且使用第二均衡目标产生第二均衡输出。重试确定电路可操作以至少部分地基于错误的发生来选择第二均衡目标。

43. 发明授权

US08526133B2 Systems and methods for user data based fly height calculation 有权
标题翻译：基于用户数据的飞行高度计算的系统和方法
公开(公告)号：US08526133B2
公开(公告)日：2013-09-03
申请号：US13185562
申请日：2011-07-19
申请人： Haitao Xia , George Mathew , Ming Jin , Shaohua Yang
发明人： Haitao Xia , George Mathew , Ming Jin , Shaohua Yang
IPC分类号： G11B21/02
CPC分类号： G11B5/6029
摘要： Various embodiments of the present invention provide systems and methods for calculating and/or modifying fly height. For example, a circuit for calculating fly height is disclosed that includes: a first pattern detector circuit, a second pattern detector circuit, a first pattern fly height calculation circuit, a second pattern fly height calculation circuit, a first averaging circuit, a second averaging circuit, and a combining circuit.
摘要翻译：本发明的各种实施例提供了用于计算和/或修改飞行高度的系统和方法。例如，公开了一种用于计算飞行高度的电路，其包括：第一模式检测器电路，第二模式检测器电路，第一模式飞行高度计算电路，第二模式飞行高度计算电路，第一平均电路，第二平均电路和组合电路。

44. 发明申请

US20130148226A1 Systems and Methods for Zone Servo Timing Gain Recovery 有权
标题翻译：区域伺服定时增益恢复系统与方法
公开(公告)号：US20130148226A1
公开(公告)日：2013-06-13
申请号：US13316899
申请日：2011-12-12
申请人： Haitao Xia , Ming Jin , Dahua Qin , Shaohua Yang
发明人： Haitao Xia , Ming Jin , Dahua Qin , Shaohua Yang
IPC分类号： G11B5/09
CPC分类号： G11B5/59688 , G11B5/59622
摘要： Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing system is disclosed that includes Various embodiments of the present invention provide data processing systems that include an analog to digital converter circuit and a phase and gain computation circuit. The analog to digital converter circuit is operable to convert an analog input into a series of digital samples. At least a portion of the series of digitals samples represent a periodic signal from a servo data region. The phase and gain computation circuit is operable to: determine an approximate amplitude of the periodic signal based at least in part upon the digital samples representing the periodic signal from the servo data region; determine a gain based at least in part on the approximate amplitude; and determine a phase based at least in part on the approximate amplitude.
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系统，其包括本发明的各种实施例，其提供包括模数转换器电路和相位和增益计算电路的数据处理系统。模数转换器电路可操作以将模拟输入转换为一系列数字采样。一系列数字采样的至少一部分表示来自伺服数据区的周期性信号。相位和增益计算电路可操作以：至少部分地基于表示来自伺服数据区域的周期信号的数字采样来确定周期信号的近似幅度; 至少部分地基于近似幅度确定增益; 并且至少部分地基于近似幅度来确定相位。

45. 发明申请

US20130091400A1 Systems and Methods for Parity Shared Data Encoding 有权
标题翻译：用于奇偶校验共享数据编码的系统和方法
公开(公告)号：US20130091400A1
公开(公告)日：2013-04-11
申请号：US13269852
申请日：2011-10-10
申请人： Haitao Xia , Shaohua Yang , Johnson Yen
发明人： Haitao Xia , Shaohua Yang , Johnson Yen
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/1102 , G11B20/1833 , G11B2020/185 , G11B2220/2516 , H03M13/2942 , H03M13/3761 , H03M13/6331 , H03M13/6343 , H03M13/6502
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。

46. 发明申请

US20120212849A1 Systems and Methods for Data Pre-Coding Calibration 有权
标题翻译：数据预编码校准系统与方法
公开(公告)号：US20120212849A1
公开(公告)日：2012-08-23
申请号：US13031818
申请日：2011-02-22
申请人： Changyou Xu , Shaohua Yang , Haitao Xia , Kapil Gaba
发明人： Changyou Xu , Shaohua Yang , Haitao Xia , Kapil Gaba
IPC分类号： G11B5/00 , H04L27/01
CPC分类号： G11B20/10083 , G11B20/10296 , G11B20/1833 , G11B2020/185 , G11B2220/2516 , G11B2220/415
摘要： Various embodiments of the present invention provide systems and methods for selecting between pre-coding and non-pre-coding. As an example, a data processing circuit is disclosed that includes: a first data detector circuit, a second data detector circuit, a first comparator circuit, a second comparator circuit, and a pre-code selection circuit. The first data detector circuit is selectably configurable to operate in a pre-coded state, and operable to apply a data detection algorithm on a data input to yield a first detected output. The second data detector circuit operable to apply the data detection algorithm to the data input to yield a second detected output without compensating for pre-coding. The first comparator circuit operable to compare the first detected output against a known input to yield a first comparison value, and the second comparator circuit operable to compare the second detected output against the known input to yield a second comparison value. The pre-code selection circuit is operable to determine a selectable configuration of the first data detector circuit based at least in part on the first comparison value and the second comparison value.
摘要翻译：本发明的各种实施例提供了用于在预编码和非预编码之间进行选择的系统和方法。作为示例，公开了一种数据处理电路，其包括：第一数据检测器电路，第二数据检测器电路，第一比较器电路，第二比较器电路和预代码选择电路。第一数据检测器电路可选择地被配置为以预编码状态操作，并且可操作以将数据检测算法应用于数据输入以产生第一检测输出。第二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第二检测输出而不补偿预编码。第一比较器电路可操作以将第一检测输出与已知输入进行比较以产生第一比较值，并且第二比较器电路可操作以将第二检测输出与已知输入进行比较以产生第二比较值。预编码选择电路可操作以至少部分地基于第一比较值和第二比较值来确定第一数据检测器电路的可选配置。

47. 发明申请

US20120207201A1 Systems and Methods for Data Detection Using Distance Based Tuning 有权
标题翻译：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
申请人： Haitao Xia , Weijun Tan , Nenad Miladinovic , Shaohua Yang
发明人： Haitao Xia , Weijun Tan , Nenad Miladinovic , Shaohua Yang
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。

48. 发明授权

US08972800B2 Systems and methods for enhanced media defect detection 有权
标题翻译：增强介质缺陷检测的系统和方法
公开(公告)号：US08972800B2
公开(公告)日：2015-03-03
申请号：US13561243
申请日：2012-07-30
申请人： Fan Zhang , Weijun Tan , Ming Jin , Haitao Xia
发明人： Fan Zhang , Weijun Tan , Ming Jin , Haitao Xia
IPC分类号： G06F11/07
CPC分类号： G11B20/1889 , G11B20/10305
摘要： Various embodiments of the present invention provide systems and methods for media defect detection.
摘要翻译：本发明的各种实施例提供了用于介质缺陷检测的系统和方法。

49. 发明授权

US08930788B2 LDPC decoder with fractional unsatisfied check quality metric 有权
$LDPC decoder with fractional unsatisfied check quality metric$
标题翻译：具有分数不满足检验质量度量的LDPC解码器
公开(公告)号：US08930788B2
公开(公告)日：2015-01-06
申请号：US13602463
申请日：2012-09-04
申请人： Fan Zhang , Ming Jin , Wu Chang , Haitao Xia
发明人： Fan Zhang , Ming Jin , Wu Chang , Haitao Xia
IPC分类号： H03M13/00
CPC分类号： H03M13/6343 , H03M13/1111 , H03M13/1117 , H03M13/1128 , H03M13/1171 , H03M13/2957 , H03M13/658
摘要： An apparatus includes a low density parity check decoder operable to iteratively generate messages between a plurality of check nodes and variable nodes, and to calculate a fractional quality metric for a data block as it is decoded in the low density parity check decoder based at least in part on perceived values of data in the variable nodes. The fractional unsatisfied check quality metric is a probabilistic determination of a number of unsatisfied parity checks in the low density parity check decoder.
摘要翻译：一种装置包括低密度奇偶校验解码器，其可操作以在多个校验节点和可变节点之间迭代地生成消息，并且在低密度奇偶校验解码器中解码时计算数据块的分数质量度量，至少基于部分变量节点中数据的感知值。分数不满足的检查质量度量是低密度奇偶校验解码器中的不满足奇偶校验的数量的概率确定。

50. 发明申请

US20140032454A1 Systems and Methods for Data Processing Using Soft Data Shaping 有权
标题翻译：使用软数据整形的数据处理系统和方法
公开(公告)号：US20140032454A1
公开(公告)日：2014-01-30
申请号：US13561230
申请日：2012-07-30
申请人： Fan Zhang , Jun Xiao , Ming Jin , Haitao Xia
发明人： Fan Zhang , Jun Xiao , Ming Jin , Haitao Xia
IPC分类号： G06N3/12
CPC分类号： G06N3/126 , G06N3/12
摘要： The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for manipulating soft data in a data processing system.
摘要翻译：本发明涉及用于数据处理的系统和方法，更具体地涉及用于在数据处理系统中操纵软数据的系统和方法。

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