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    Systems and methods for loop pulse estimation
    11.
    发明授权
    Systems and methods for loop pulse estimation 有权
    环路脉冲估计的系统和方法

    公开(公告)号：US08929010B1

    公开(公告)日：2015-01-06

    申请号：US14029559

    申请日：2013-09-17

    Applicant: LSI Corporation

    Inventor： Rui Cao ,  Yu Kou ,  Xuebin Wu ,  Yang Han

    IPC: G11B20/10 ,  G11B5/035 ,  H04L25/03

    CPC classification number: H04L25/03885 ,  G11B5/09 ,  G11B20/10027 ,  H04L25/0212 ,  H04L25/0238 ,  H04L25/025

    Abstract: A data processing system includes a digital data input operable to receive digital data, a digital data values input operable to receive values of the digital data, a loop pulse response estimation circuit operable to calculate a loop pulse response based on the digital data and the values of the digital data and based at least in part on past values of the loop pulse response, and a scaling circuit operable to scale the loop pulse response based at least in part on an absolute sum of the loop pulse response to yield a scaled loop pulse response.

    Abstract translation: 数据处理系统包括可操作以接收数字数据的数字数据输入，可操作以接收数字数据值的数字数据值输入;循环脉冲响应估计电路，其可操作以基于数字数据和值计算环路脉冲响应 至少部分地基于环路脉冲响应的过去值，以及缩放电路，其可操作以至少部分地基于环路脉冲响应的绝对和来缩放环路脉冲响应，以产生缩放的环路脉冲 响应。

    Diversity loop detector with component detector switching
    14.
    发明授权
    Diversity loop detector with component detector switching 有权
    具有分量检测器切换的分集环路检测器

    公开(公告)号：US09407295B2

    公开(公告)日：2016-08-02

    申请号：US13741482

    申请日：2013-01-15

    Applicant: LSI Corporation

    Inventor： Yang Han ,  Yu Kou ,  Xuebin Wu ,  Bruce A. Wilson

    IPC: G06F17/18 ,  H03M13/41

    CPC classification number: H03M13/41

    Abstract: Aspects of the disclosure pertain to a system and method for providing component detector switching for a diversity loop detector. Switching between component detectors is performed via one of: a periodic state likelihood reset process, a slope-based switching process, or a cross-over connection process. The joint decision circuit switches among component detectors to promote improved performance with present of constant or transition phase offset.

    Abstract translation: 本公开的方面涉及用于为分集环路检测器提供分量检测器切换的系统和方法。 通过周期状态似然重置处理，基于斜率的切换处理或交叉连接处理之一来执行分量检测器之间的切换。 联合决策电路在组件检测器之间切换，以通过存在恒定或过渡相位偏移来促进改进的性能。

    Systems and methods for data retry using averaging process
    15.
    发明授权
    Systems and methods for data retry using averaging process 有权
    使用平均过程进行数据重试的系统和方法

    公开(公告)号：US09190104B2

    公开(公告)日：2015-11-17

    申请号：US13802627

    申请日：2013-03-13

    Applicant: LSI Corporation

    Inventor： Shaohua Yang ,  Kapil Gaba ,  Yoon L. Liow ,  Xuebin Wu ,  Qi Zuo ,  YuQing Yang ,  Lei Wang

    IPC: G06F17/10 ,  G11B20/10

    CPC classification number: G11B20/10046

    Abstract: Embodiments are related to systems and methods for data processing, and more particularly to systems and methods for calibration during data processing. As an example, a data processing system is discussed that includes a sample averaging circuit operable to average digital samples from an analog to digital converter circuit over multiple instances of an analog input to yield an X-average output, and a selector circuit operable to select one of the digital samples or the X-average output as a processing output.

    Abstract translation: 实施例涉及用于数据处理的系统和方法，更具体地涉及在数据处理期间用于校准的系统和方法。 作为示例，讨论了一种数据处理系统，其包括采样平均电路，其可操作以在模拟输入的多个实例上平均来自模数转换器电路的数字采样以产生X平均输出，以及可操作以选择 数字样本之一或X平均输出作为处理输出。

    Sync mark detection using branch metrics from data detector
    16.
    发明授权
    Sync mark detection using branch metrics from data detector 有权
    使用来自数据检测器的分支度量进行同步标记检测

    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。

    Systems and methods for fragmented data recovery
    18.
    发明授权
    Systems and methods for fragmented data recovery 有权
    分散数据恢复的系统和方法

    公开(公告)号：US09298720B2

    公开(公告)日：2016-03-29

    申请号：US14047441

    申请日：2013-10-07

    Applicant: LSI Corporation

    Inventor： Haitao Xia ,  Lu Lu ,  Shu Li ,  Xuebin Wu

    IPC: H03M13/00 ,  G06F17/30 ,  G06F11/08

    CPC classification number: G06F17/30135 ,  G06F11/085 ,  G06F11/1076 ,  G11B20/10009 ,  G11B20/10268 ,  G11B20/18 ,  G11B20/1866

    Abstract: Systems and method relating generally to data processing, and more particularly to systems and methods for fragmenting a data set and recovering the fragmented data set. As one example, a data processing system is discussed that includes: a fragmenting circuit operable to separate a data set into at least a first fragment and a second fragment; and a transfer packet formation circuit operable to: append identification information to the front of the first fragment, and at least a first M+N bits of the second fragment to the end of the first fragment to yield a first transfer fragment, and aggregate the first transfer fragment with other transfer fragments to yield an aggregate output.

    Abstract translation: 一般涉及数据处理的系统和方法，更具体地涉及用于分段数据集和恢复碎片化数据集的系统和方法。 作为一个示例，讨论了数据处理系统，其包括：分段电路，其可操作以将数据集分成至少第一片段和第二片段; 以及传输分组形成电路，可操作用于：将标识信息附加到第一片段的前面，以及将第二片段的至少第一M + N比特附加到第一片段的末尾，以产生第一片段，并将 首先转移片段与其他转移片段产生总产量。

    Read Channel Sampling Utilizing Two Quantization Modules for Increased Sample Bit Width
    19.
    发明申请
    Read Channel Sampling Utilizing Two Quantization Modules for Increased Sample Bit Width 有权
    读取通道采样利用两个量化模块增加采样位宽度

    公开(公告)号：US20150228303A1

    公开(公告)日：2015-08-13

    申请号：US14198008

    申请日：2014-03-05

    Applicant: LSI Corporation

    Inventor： Xuebin Wu ,  Yang Han ,  Weijun Tan ,  Shaohua Yang

    IPC: G11B20/10

    CPC classification number: G11B20/10046 ,  G10L19/0208 ,  G11B5/012 ,  G11B5/5526 ,  G11B5/553 ,  G11B20/10009 ,  G11B20/10268 ,  G11B20/1403

    Abstract: A communication channel structure and a decoding method supported by such a communication channel structure are disclosed. Such a communication channel includes a digital filter configured for filtering an input signal and two quantizer configured for quantizing the filtered signal. A first quantizer is utilized to quantize the filtered signal to produce a first quantized sample having a first precision and a second quantizer is utilized to quantize the filtered signal to produce a second quantized sample having a second precision, wherein the second precision is different from the first precision. The communication channel also includes an iterative decoder configured for utilizing the first quantized sample for a first global iteration of a decoding process and utilizing the second quantized sample for at least one subsequent global iteration of the decoding process.

    Abstract translation: 公开了一种由这种通信信道结构支持的通信信道结构和解码方法。 这样的通信信道包括被配置为对输入信号进行滤波的数字滤波器和被配置为量化滤波信号的两个量化器。 利用第一量化器来量化滤波后的信号以产生具有第一精度的第一量化样本，并且使用第二量化器量化滤波信号以产生具有第二精度的第二量化样本，其中第二精度不同于 第一精度。 通信信道还包括迭代解码器，其被配置为利用第一量化样本进行解码过程的第一全局迭代，并且利用第二量化样本进行解码过程的至少一个后续全局迭代。

    Zero Phase Start Estimation in Readback Signals
    20.
    发明申请
    Zero Phase Start Estimation in Readback Signals 有权
    回读信号中的零相位开始估计

    公开(公告)号：US20150228302A1

    公开(公告)日：2015-08-13

    申请号：US14197748

    申请日：2014-03-05

    Applicant: LSI Corporation

    Inventor： Xuebin Wu ,  Shaohua Yang ,  Zhi Bin Li ,  Haitao Xia

    IPC: G11B20/10

    CPC classification number: G11B20/1024 ,  G11B20/10037

    Abstract: A data storage system identifies analog-to-digital conversion samples with amplitude below a certain threshold. Remaining samples are grouped according to phase into one or more quadrants. A multi-coordinate with overlapping quadrants is used to further differentiate sample points. The system then computes an average phase for zero phase start estimation.

    Abstract translation: 数据存储系统识别幅度低于某一阈值的模数转换样本。 剩余样品根据阶段分组成一个或多个象限。 使用具有重叠象限的多坐标来进一步区分采样点。 然后，该系统计算零相位开始估计的平均相位。

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