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71. 发明申请

US20130290798A1 Systems and Methods for Short Media Defect Detection Using Non-Binary Coded Information 有权
标题翻译：使用非二进制编码信息进行短介质缺陷检测的系统和方法
公开(公告)号：US20130290798A1
公开(公告)日：2013-10-31
申请号：US13459289
申请日：2012-04-30
申请人： Fan Zhang , Weijun Tan , Haitao Xia , Shaohua Yang , Xuebin Wu , Wu Chang
发明人： Fan Zhang , Weijun Tan , Haitao Xia , Shaohua Yang , Xuebin Wu , Wu Chang
IPC分类号： G11C29/04 , G06F11/16
CPC分类号： G11B20/18 , G06F11/1076 , G11B20/10268
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。

72. 发明申请

US20130246877A1 Systems and Methods for Compression Driven Variable Rate Decoding in a Data Processing System 有权
标题翻译：数据处理系统中压缩驱动变速率解码的系统和方法
公开(公告)号：US20130246877A1
公开(公告)日：2013-09-19
申请号：US13422986
申请日：2012-03-16
申请人： Fan Zhang , Shaohua Yang , Yang Han , Chung-Li Wang , Weijun Tan
发明人： Fan Zhang , Shaohua Yang , Yang Han , Chung-Li Wang , Weijun Tan
IPC分类号： G06F11/07 , H03M13/09 , G06F11/10 , H03M13/05
CPC分类号： H03M13/1111 , G06F11/1076 , G11B20/00007 , G11B20/1833 , G11B2020/185 , G11B2220/2516 , H03M13/2957 , H03M13/3707 , H03M13/6331 , H03M13/6343 , H03M13/6516
摘要： The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for variable rate encoding and/or decoding 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，更具体地涉及用于数据处理系统中的可变速率编码和/或解码的系统和方法。

73. 发明授权

US08443267B2 Systems and methods for hard decision assisted decoding 有权
标题翻译：硬判决辅助解码的系统和方法
公开(公告)号：US08443267B2
公开(公告)日：2013-05-14
申请号：US12430927
申请日：2009-04-28
申请人： Hao Zhong , Shaohua Yang , Weijun Tan , Changyou Xu , Yuan Xing Lee
发明人： Hao Zhong , Shaohua Yang , Weijun Tan , Changyou Xu , Yuan Xing Lee
IPC分类号： G06F11/00
CPC分类号： H03M13/1111 , H03M13/1108 , H03M13/1128 , H03M13/3715 , H03M13/6331
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 processing loop circuit having a data detector and a soft decision decoder. The data detector provides a detected output, and the soft decision decoder applies a soft decoding algorithm to a derivative of the detected output to yield a soft decision output and a first hard decision output. The systems further include a queuing buffer and a hard decision decoder. The queuing buffer is operable to store the soft decision output, and the hard decision decoder accesses the soft decision output and applies a hard decoding algorithm to yield a second hard decision output. The data detector is operable to perform a data detection on a derivative of the soft decision output if the soft decision decoder and the hard decision decoder fail to converge.
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，公开了一种包括具有数据检测器和软判决解码器的处理环路电路的数据处理系统。数据检测器提供检测输出，软判决解码器将软解码算法应用于检测输出的导数，以产生软决策输出和第一硬决策输出。该系统还包括排队缓冲器和硬判决解码器。排队缓冲器可操作以存储软判决输出，并且硬判决解码器访问软决策输出并应用硬解码算法以产生第二硬决策输出。如果软判决解码器和硬判决解码器不能收敛，则数据检测器可操作以对软决策输出的导数执行数据检测。

74. 发明申请

US20130111290A1 Systems and Methods for Ambiguity Based Decode Algorithm Modification 有权
标题翻译：基于模糊度的解码算法修改的系统与方法
公开(公告)号：US20130111290A1
公开(公告)日：2013-05-02
申请号：US13284754
申请日：2011-10-28
申请人： Fan Zhang , Weijun Tan , Zongwang Li , Shaohua Yang , Yang Han
发明人： Fan Zhang , Weijun Tan , Zongwang Li , Shaohua Yang , Yang Han
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/1108 , H03M13/1111 , H03M13/1128 , H03M13/1142 , H03M13/1171 , H03M13/3707 , H03M13/451
摘要： Various embodiments of the present invention provide systems and methods for data processing. For example, data processing systems are disclosed that include a data decoding system.
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，公开了包括数据解码系统的数据处理系统。

75. 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。

76. 发明授权

US08219892B2 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：US08219892B2
公开(公告)日：2012-07-10
申请号：US12399713
申请日：2009-03-06
申请人： Weijun Tan , Hongwei Song , Shaohua Yang
发明人： Weijun Tan , Hongwei Song , Shaohua Yang
IPC分类号： G06F11/00
CPC分类号： G11B5/09 , G11B20/10009 , G11B20/10046 , G11B20/10055 , H03M13/3905
摘要： Various embodiments of the present invention provide systems and methods for detecting storage medium defects. As one example, a media defect detection system is disclosed that includes a data detector circuit that applies a detection algorithm to the data input and provides a hard output and a soft output. A first circuit combines a first derivative of the hard output with a derivative of the data input to yield a first combined signal. A second circuit combines a second derivative of the hard output with a derivative of the first combined signal to yield a second combined signal. A third circuit combines a derivative of the soft output with the second combined signal and a threshold value to yield a defect signal.
摘要翻译：本发明的各种实施例提供了用于检测存储介质缺陷的系统和方法。作为一个示例，公开了一种媒体缺陷检测系统，其包括将检测算法应用于数据输入并提供硬输出和软输出的数据检测器电路。第一电路将硬输出的一阶导数与数据输入的导数组合以产生第一组合信号。第二电路将硬输出的二阶导数与第一组合信号的导数组合以产生第二组合信号。第三电路将软输出的导数与第二组合信号和阈值组合以产生缺陷信号。

77. 发明授权

US08201051B2 Method for detecting short burst errors in LDPC system 有权
标题翻译：用于检测LDPC系统中短脉冲串错误的方法
公开(公告)号：US08201051B2
公开(公告)日：2012-06-12
申请号：US12287959
申请日：2008-10-15
申请人： Weijun Tan , Shaohua Yang , Hongwei Song
发明人： Weijun Tan , Shaohua Yang , Hongwei Song
IPC分类号： H03M13/00
CPC分类号： H03M13/1128 , H03M13/17
摘要： The present invention is a device for detecting short burst errors. The device includes a first signal input, wherein the first signal input is configured to receive a first signal. The device includes a second signal input, wherein the second signal input is configured to receive a second signal. The device includes a logic gate, wherein the logic gate is operable for receiving the first signal vial the first signal input, receiving the second signal via the second signal input, and generating a logic output gate signal based on the received first signal and the second signal. Furthermore, the device includes a filter, wherein the filter is configured for receiving the logic output gate signal from the logic gate and generates a filter output signal based upon the received logic output gate signal, wherein the filter output signal is operable for flagging errors.
摘要翻译：本发明是用于检测短脉冲串错误的装置。该设备包括第一信号输入，其中第一信号输入被配置为接收第一信号。该设备包括第二信号输入，其中第二信号输入被配置为接收第二信号。该装置包括逻辑门，其中逻辑门可操作用于接收第一信号输入端，第一信号输入端，经由第二信号输入端接收第二信号，并根据接收到的第一信号和第二信号产生逻辑输出门信号信号。此外，该器件包括滤波器，其中滤波器被配置为从逻辑门接收逻辑输出门信号，并且基于接收的逻辑输出门信号产生滤波器输出信号，其中滤波器输出信号可用于标记误差。

78. 发明授权

US08176404B2 Systems and methods for stepped data retry in a storage system 有权
标题翻译：存储系统中步进数据重试的系统和方法
公开(公告)号：US08176404B2
公开(公告)日：2012-05-08
申请号：US12556145
申请日：2009-09-09
申请人： Shaohua Yang , Weijun Tan , Yuan Xing Lee
发明人： Shaohua Yang , Weijun Tan , Yuan Xing Lee
IPC分类号： G11C29/00
CPC分类号： G11B20/1879 , G11B20/10527 , G11B2020/1062 , G11B2020/10694 , G11B2020/10851 , G11B2020/183 , G11B2220/2516
摘要： Various embodiments of the present invention provide systems and methods for data processing retries. As an example, a data processing retry circuit is discussed that includes a stepped erasure window register, and an erasure flag set circuit. The stepped erasure window register includes: an erasure flag location, an erasure flag length, and a step size. The erasure flag set circuit is operable to assert a first erasure flag beginning at the erasure flag location and having the erasure flag length at a first time. In addition, the erasure flag set circuit is operable to assert a second erasure flag beginning at the erasure flag location plus the step size, and having the erasure flag length at a second time.
摘要翻译：本发明的各种实施例提供了用于数据处理重试的系统和方法。作为示例，讨论了包括阶梯式擦除窗口寄存器和擦除标志设置电路的数据处理重试电路。阶梯式擦除窗口寄存器包括：擦除标志位置，擦除标志长度和步长。擦除标志设置电路可操作来断言在擦除标志位置开始的第一擦除标志，并且在第一时间具有擦除标志长度。此外，擦除标志设置电路可操作来断言从擦除标志位置开始的第二擦除标志加上步长，并且第二次具有擦除标志长度。

79. 发明申请

US20120033320A1 Systems and Methods for Dynamic Scaling in a Read Data Processing System 有权
标题翻译：读取数据处理系统中动态缩放的系统和方法
公开(公告)号：US20120033320A1
公开(公告)日：2012-02-09
申请号：US13126748
申请日：2009-04-28
申请人： Weijun Tan , Shaohua Yang , Kelly Fitzpatrick , Zongwang Li , Hao Zhong
发明人： Weijun Tan , Shaohua Yang , Kelly Fitzpatrick , Zongwang Li , Hao Zhong
IPC分类号： G11B20/10 , G06F11/07 , G06F7/00
CPC分类号： G11B20/1803 , G11B20/10222 , G11B2020/10722 , G11B2020/10759 , G11B2020/1287 , G11B2020/1289 , G11B2020/185 , H03M13/1111 , H03M13/112 , H03M13/2957 , H03M13/3746 , 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 decoder circuit providing a decoded output, and a dynamic scalar calculation circuit that determines a first dynamic scaling value and a second dynamic scaling value based at least in part on the decoded output. A first multiplier circuit multiplies the decoded output by the first dynamic scaling value and provides a first scaled output. A detector circuit receives the first scaled output and provides a detected output. A second multiplier circuit multiplies the detected output by the second dynamic scaling value and provides a second scaled output.
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，公开了包括提供解码输出的解码器电路的数据处理系统，以及至少部分地基于解码输出来确定第一动态缩放值和第二动态缩放值的动态标量计算电路。第一乘法器电路将解码输出乘以第一动态缩放值并提供第一缩放输出。检测器电路接收第一缩放输出并提供检测输出。第二乘法器电路将检测到的输出乘以第二动态缩放值，并提供第二缩放输出。

80. 发明申请

US20110235204A1 DETECTION OF HARD-DISC DEFECT REGIONS USING SOFT DECISIONS 有权
标题翻译：使用软判决检测硬盘区缺陷区域
公开(公告)号：US20110235204A1
公开(公告)日：2011-09-29
申请号：US12731381
申请日：2010-03-25
申请人： Shaohua Yang , Weijun Tan
发明人： Shaohua Yang , Weijun Tan
IPC分类号： G11B27/36
CPC分类号： G11B20/1816 , G11B20/10009 , H03M13/41
摘要： In a hard-disc drive, a defect region on the hard disc is detected by generating two statistical measures (e.g., β1(k) and β2(k)) based on signal values (e.g., x[n] or y[n]) and soft-decision values (e.g., L[n]) corresponding to the signal values. The measures are compared to detect the location of the defect region of the hard drive. Using the soft-decision values reduces fluctuations in a ratio of the statistical measures compared to a ratio formed from statistical measures that are not based on soft-decision values, resulting in a more-reliable test for detecting defect regions.
摘要翻译：在硬盘驱动器中，通过基于信号值（例如，x [n]或x（n））生成两个统计度量（例如，＆bgr; 1（k）和＆bgr; 2（k））来检测硬盘上的缺陷区域 y [n]）和软判决值（例如，L [n]）。比较措施来检测硬盘驱动器缺陷区域的位置。使用软判决值可减少统计度量与由不基于软判决值的统计测量形成的比率的比率的波动，导致检测缺陷区域的更可靠的测试。

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