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公开(公告)号：US09003263B2
公开(公告)日：2015-04-07
申请号：US13742340
申请日：2013-01-15
Applicant: LSI Corporation
Inventor： Razmik Karabed , Shaohua Yang , Wu Chang , Victor Krachkovsky
CPC classification number: G06F11/14 , G11B20/1833 , G11C11/26 , G11C11/5628 , G11C11/5642 , H03M5/145
Abstract: A method of generating a hardware encoder includes generating a first directed graph characterizing a constraint set for a constrained system, identifying a scaling factor for an approximate eigenvector for the first directed graph, applying the scaling factor to the approximate eigenvector for the first directed graph to yield a scaled approximate eigenvector, partitioning arcs between each pair of states in the first directed graph, performing a state splitting operation on the first directed graph according to the partitioning of the arcs to yield a second directed graph, and generating the hardware encoder based on the second directed graph.
Abstract translation: 生成硬件编码器的方法包括：生成表征约束系统的约束集的第一有向图，识别第一有向图的近似特征向量的缩放因子，将缩放因子应用于第一有向图的近似特征向量 产生缩放的近似特征向量，在第一有向图中的每对状态之间划分弧，根据弧的划分对第一有向图执行状态分割操作以产生第二有向图，并且基于 第二个有向图。
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公开(公告)号：US20150012800A1
公开(公告)日：2015-01-08
申请号：US13952415
申请日：2013-07-26
Applicant: LSI Corporation
Inventor： Shaohua Yang , George Mathew , Jefferson E. Singleton , Jongseung Park , Richard Rauschmayer
IPC: G06F11/07
CPC classification number: G11B20/1833 , G11B20/10268 , H03M13/1102 , H03M13/1515 , H03M13/2957 , H03M13/3723 , H03M13/3738 , H03M13/3746 , H03M13/3753 , H03M13/6325 , H03M13/6343
Abstract: A data processing system is disclosed including a data detector, a data decoder and an alignment detector. The data detector is operable to apply a data detection algorithm to generate detected values for a data sector. The data decoder is operable to apply a data decode algorithm to a decoder input derived from the detected values to yield decoded values. The alignment detector is operable to calculate an offset between multiple versions of the data sector by correlating the multiple versions.
Abstract translation: 公开了一种数据处理系统，包括数据检测器，数据解码器和对准检测器。 数据检测器可操作以应用数据检测算法来产生数据扇区的检测值。 数据解码器可操作以将数据解码算法应用于从检测值导出的解码器输入，以产生解码值。 对准检测器可操作以通过关联多个版本来计算数据扇区的多个版本之间的偏移。
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13.发明授权Irregular low density parity check decoder with low syndrome error handling 有权具有低综合征错误处理的不规则低密度奇偶校验解码器公开(公告)号：US08929009B2
公开(公告)日：2015-01-06
申请号：US13777381
申请日：2013-02-26
Applicant: LSI Corporation
Inventor： Shaohua Yang , Anatoli A. Bolotov , Chung-Li Wang , Zongwang Li , Shu Li , Mikhail I Grinchuk
CPC classification number: G11B20/18 , G11B20/1833 , G11B2020/185 , H03M13/09 , H03M13/1111 , H03M13/1128 , H03M13/27 , H03M13/6331
Abstract: A data processing system is disclosed including a data decoder circuit, an error handling circuit and a syndrome checker circuit. The data decoder circuit is operable to apply a data decode algorithm to a decoder input to yield a decoded output, and to calculate a syndrome indicating an error level for the decoded output. The error handling circuit is operable to determine whether any errors in the decoded output involve user data bits. The syndrome checker circuit is operable to trigger the error handling circuit based at least in part on the syndrome.
Abstract translation: 公开了一种数据处理系统，包括数据解码器电路，错误处理电路和综合检查电路。 数据解码器电路可操作以将数据解码算法应用于解码器输入以产生解码输出，并计算指示解码输出的误差电平的校正子。 错误处理电路可操作以确定解码输出中的任何错误是否涉及用户数据位。 综合征检查器电路可操作以至少部分地基于综合征触发误差处理电路。
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公开(公告)号：US08922934B2
公开(公告)日：2014-12-30
申请号：US13912159
申请日：2013-06-06
Applicant: LSI Corporation
Inventor： Jin Lu , Shaohua Yang
CPC classification number: G11B20/10037 , G11B20/10046 , H04L25/03025 , H04L25/061 , H04L25/067
Abstract: Systems, methods, devices, circuits for transition based equalization.
Abstract translation: 用于基于过渡的均衡的系统，方法，设备，电路。
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公开(公告)号：US20140281841A1
公开(公告)日：2014-09-18
申请号：US13896048
申请日：2013-05-16
Applicant: LSI Corporation
Inventor： Shaohua Yang
IPC: G06F11/263
CPC classification number: G11B20/10305 , G06F11/263 , G11B20/10361 , G11B20/1037 , G11B20/1816
Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for detecting patterns in a data stream.
Abstract translation: 本发明涉及用于数据处理的系统和方法，更具体地涉及用于检测数据流中的模式的系统和方法。
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Patent Agency Ranking
公开(公告)号：US20140268390A1
公开(公告)日：2014-09-18
申请号：US13912159
申请日：2013-06-06
Applicant: LSI Corporation
Inventor： Jin Lu , Shaohua Yang
CPC classification number: G11B20/10037 , G11B20/10046 , H04L25/03025 , H04L25/061 , H04L25/067
Abstract: Systems, methods, devices, circuits for transition based equalization.
Abstract translation: 用于基于过渡的均衡的系统，方法，设备，电路。
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公开(公告)号：US20140237313A1
公开(公告)日：2014-08-21
申请号：US13770030
申请日：2013-02-19
Applicant: LSI CORPORATION
Inventor： Chung-Li Wang , Fan Zhang , Qi Qi , Shu Li , Shaohua Yang
CPC classification number: G11B20/1833 , H03M13/1111 , H03M13/1117 , H03M13/1122 , H03M13/1128 , H03M13/1142 , H03M13/2957 , H03M13/6331 , H03M13/6343 , H03M13/658
Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for performing data decoding including utilization of different scaling values on a portion by portion basis during the data decoding.
Abstract translation: 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解码期间逐个基础地执行包括不同缩放值的使用的数据解码的系统和方法。
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公开(公告)号：US08810949B2
公开(公告)日：2014-08-19
申请号：US13724962
申请日：2012-12-21
Applicant: LSI Corporation
Inventor： Jin Lu , Weijun Tan , Shaohua Yang
CPC classification number: G11B20/10287 , G11B20/10046
Abstract: An apparatus comprises read channel circuitry and associated signal processing circuitry. The signal processing circuitry comprises: an equalizer configured to combine an output of two or more component filters into a single equalized data signal; a detector with an input coupled to an output of the equalizer configured to determine a set of soft outputs, hard decision information and reliability indicators of the single equalized data signal; a decoder with an input coupled to an output of the decoder configured to perform an iterative decoding process using the set of soft outputs, hard decision information and reliability indicators to determine a decoded data signal; and a multiplexer with a first input coupled to an output of the decoder, a second input coupled to an output of the detector, and an output coupled to an input of the equalizer. The hard decision information is used to train the equalizer.
Abstract translation: 一种装置包括读通道电路和相关的信号处理电路。 信号处理电路包括：均衡器，被配置为将两个或更多个分量滤波器的输出组合成单个均衡数据信号; 具有耦合到所述均衡器的输出的输入的检测器，被配置为确定所述单个均衡数据信号的一组软输出，硬判决信息和可靠性指示符; 解码器，具有耦合到所述解码器的输出的输入，所述输出被配置为使用所述一组软输出执行迭代解码处理，硬判决信息和可靠性指示符，以确定解码的数据信号; 以及多路复用器，其具有耦合到解码器的输出的第一输入，耦合到检测器的输出的第二输入和耦合到均衡器的输入的输出。 硬判决信息用于训练均衡器。
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公开(公告)号：US08810943B2
公开(公告)日：2014-08-19
申请号：US13728443
申请日：2012-12-27
Applicant: LSI Corporation
Inventor： Shaohua Yang , Yoon L. Liow , Wu Chang , Xuebin Wu
IPC: G11B5/09
CPC classification number: G11B20/10222
Abstract: Methods and apparatus are provided for detecting a sync mark in a storage system, such as a hard disk drive. A sync mark is detected in a storage system by obtaining one or more branch metrics from a data detector in the storage system; generating one or more sync mark metrics using the one or more branch metrics from the data detector; and identifying the sync mark based on the sync mark metrics. An input data set is optionally compared with a plurality of portions of a sync mark pattern to yield corresponding comparison values and the comparison values can be summed to obtain at least one result. A sync mark found signal is asserted based upon the at least one result.
Abstract translation: 提供了用于检测诸如硬盘驱动器的存储系统中的同步标记的方法和装置。 在存储系统中通过从存储系统中的数据检测器获得一个或多个分支度量来检测同步标记; 使用来自所述数据检测器的所述一个或多个分支度量来生成一个或多个同步标记度量; 以及基于同步标记度量识别同步标记。 输入数据组可选地与同步标记图案的多个部分进行比较以产生对应的比较值，并且可以将比较值相加以获得至少一个结果。 基于至少一个结果来确定发现同步标记信号。
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公开(公告)号：US20140226229A1
公开(公告)日：2014-08-14
申请号：US13766911
申请日：2013-02-14
Applicant: LSI CORPORATION
Inventor： Shaohua Yang , Chung-Li Wang , Anatoli Bolotov , Bruce A. Wilson
IPC: H03M7/00
CPC classification number: H03M13/2957 , H03M13/1131 , H03M13/6337 , H03M13/6343
Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for performing data decoding.
Abstract translation: 本发明涉及用于数据处理的系统和方法，更具体地涉及用于执行数据解码的系统和方法。
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