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    Systems and Methods for Multi-Level Encoding and Decoding
    1.
    发明申请
    Systems and Methods for Multi-Level Encoding and Decoding 有权
    多级编码和解码的系统和方法

    公开(公告)号：US20150062734A1

    公开(公告)日：2015-03-05

    申请号：US14015126

    申请日：2013-08-30

    Applicant: LSI Corporation

    Inventor： Lu Pan ,  Lu Lu ,  Haitao Xia

    IPC: G11B5/09

    CPC classification number: G11B5/09 ,  G11B5/012 ,  G11B20/1833

    Abstract: A storage system includes a storage medium operable to maintain a data set, a read/write head assembly operable to write the data set to the storage medium and to read the data set from the storage medium, a multi-level encoder operable to encode the data set at a plurality of different code rates before it is written to the storage medium, and a multi-level decoder operable to decode the data set retrieved from the storage medium and to apply decoded values encoded at a lower code rate when decoding values encoded at a higher code rate.

    Abstract translation: 存储系统包括可操作以维持数据组的存储介质，可操作以将数据集写入存储介质并从存储介质读取数据集的读/写头组件，可操作以对存储介质进行编码的多电平编码器 数据在被写入存储介质之前以多种不同的代码率进行设置;以及多级解码器，其可操作以对从存储介质检索的数据集进行解码，并且在解码编码的值时应用以较低码率编码的解码值 以更高的代码率。

    Two dimensional magnetic recording system head separation estimator
    2.
    发明授权
    Two dimensional magnetic recording system head separation estimator 有权
    二维磁记录系统头分离估计器

    公开(公告)号：US08861112B1

    公开(公告)日：2014-10-14

    申请号：US14261395

    申请日：2014-04-24

    Applicant: LSI Corporation

    Inventor： Lu Pan ,  Rui Cao ,  Haitao Xia

    IPC: G11B5/09

    CPC classification number: G11B5/09 ,  G11B5/3977 ,  G11B5/4886 ,  G11B5/59644

    Abstract: An apparatus for estimating head separation in an array reader magnetic recording system includes an array reader with multiple read heads operable to read data from a magnetic storage medium, a first preamplifier connected to a first read head, a second preamplifier connected to a second read head, and a head separation estimation circuit connected to the first preamplifier and to the second preamplifier, operable to estimate an integer phase offset and a fractional phase offset between a first signal from the first read head and a second signal from the second read head.

    Abstract translation: 一种用于估计阵列读取器磁记录系统中的磁头分离的装置，包括阵列读取器，具有可操作以从磁存储介质读取数据的多个读取头，连接到第一读取头的第一前置放大器，连接到第二读取头的第二前置放大器 以及连接到第一前置放大器和第二前置放大器的头部分离估计电路，其可操作以估计来自第一读取头的第一信号和来自第二读取头的第二信号之间的整数相位偏移和分数相位偏移。

    Systems and methods for ATI characterization
    4.
    发明授权
    Systems and methods for ATI characterization 有权
    ATI表征的系统和方法

    公开(公告)号：US09281006B2

    公开(公告)日：2016-03-08

    申请号：US14148407

    申请日：2014-01-06

    Applicant: LSI Corporation

    Inventor： Lu Lu ,  Haitao Xia ,  Lu Pan ,  Xiufeng Song

    IPC: G11B20/10

    CPC classification number: G11B20/10046 ,  G11B20/10212

    Abstract: Systems, methods, devices, circuits for data processing, and more particularly to data processing including adjacent track interference detection and/or characterization.

    Abstract translation: 用于数据处理的系统，方法，设备，电路，更具体地涉及包括相邻轨道干扰检测和/或表征的数据处理。

    Zero phase start for array reader magnetic recording system
    5.
    发明授权
    Zero phase start for array reader magnetic recording system 有权
    阵列阅读器磁记录系统的零相启动

    公开(公告)号：US09196298B1

    公开(公告)日：2015-11-24

    申请号：US14320011

    申请日：2014-06-30

    Applicant: LSI Corporation

    Inventor： Haotian Zhang ,  Lu Pan ,  Haitao Xia

    IPC: G11B5/09 ,  G11B20/10 ,  G11B5/48

    CPC classification number: G11B20/1217 ,  G11B5/09 ,  G11B5/4813 ,  G11B20/10037 ,  G11B20/10222 ,  G11B20/10481 ,  G11B2020/1232

    Abstract: An apparatus includes an array reader with multiple of read heads operable to read a preamble pattern from a magnetic storage medium. A number of analog to digital converters are operable to sample an output of each of the read heads to generate digital data streams for the preamble pattern. A zero phase start calculation circuit is operable to calculate a phase offset between the digital data streams and to generate an integer phase adjustment signal and a fractional phase adjustment signal.

    Abstract translation: 一种装置包括具有多个读取头的阵列读取器，其可操作以从磁性存储介质读取前导码模式。 多个模数转换器可操作以对每个读取头的输出进行采样以产生用于前同步码模式的数字数据流。 零相位开始计算电路可用于计算数字数据流之间的相位偏移并产生整数相位调整信号和分数相位调整信号。

    Systems and methods for multi-level encoding and decoding
    9.
    发明授权
    Systems and methods for multi-level encoding and decoding 有权
    用于多级编码和解码的系统和方法

    公开(公告)号：US09047882B2

    公开(公告)日：2015-06-02

    申请号：US14015126

    申请日：2013-08-30

    Applicant: LSI Corporation

    Inventor： Lu Pan ,  Lu Lu ,  Haitao Xia

    IPC: G11B5/09 ,  G11B5/012 ,  G11B20/18

    CPC classification number: G11B5/09 ,  G11B5/012 ,  G11B20/1833

    Abstract: A storage system includes a storage medium operable to maintain a data set, a read/write head assembly operable to write the data set to the storage medium and to read the data set from the storage medium, a multi-level encoder operable to encode the data set at a plurality of different code rates before it is written to the storage medium, and a multi-level decoder operable to decode the data set retrieved from the storage medium and to apply decoded values encoded at a lower code rate when decoding values encoded at a higher code rate.

    Abstract translation: 存储系统包括可操作以维持数据组的存储介质，可操作以将数据集写入存储介质并从存储介质读取数据集的读/写头组件，可操作以对存储介质进行编码的多电平编码器 数据在被写入存储介质之前以多种不同的代码率进行设置;以及多级解码器，其可操作以对从存储介质检索的数据集进行解码，并且在解码编码的值时应用以较低码率编码的解码值 以更高的代码率。

    Synchronization mark detection for multi-dimensional magnetic recording
    10.
    发明授权
    Synchronization mark detection for multi-dimensional magnetic recording 有权
    多维磁记录同步标记检测

    公开(公告)号：US09019642B1

    公开(公告)日：2015-04-28

    申请号：US14243539

    申请日：2014-04-02

    Applicant: LSI Corporation

    Inventor： Haitao Xia ,  Rui Cao ,  Lingyan Sun ,  Lu Pan

    IPC: G11B5/09 ,  G11B20/10

    CPC classification number: G11B20/10009 ,  G11B5/02 ,  G11B5/09 ,  G11B5/4886

    Abstract: A method for detecting an information pattern includes obtaining a first sample stream and a second sample stream. The first sample stream and the second sample stream are obtained by sensing recorded information at a target location of a storage medium using a first sensor and a second sensor, respectively. A first metric is computed by comparing the first sample stream to a reference pattern representative of a target information pattern to be detected. A second metric is computed by comparing the second sample stream to the reference pattern. A combined metric is computed by combining the first metric and second metric using a weighting function. The target information pattern is detected using the combined metric.

    Abstract translation: 用于检测信息模式的方法包括获得第一样本流和第二样本流。 通过使用第一传感器和第二传感器分别在存储介质的目标位置处感测记录信息来获得第一采样流和第二采样流。 通过将第一采样流与表示要检测的目标信息模式的参考模式进行比较来计算第一度量。 通过将第二样本流与参考模式进行比较来计算第二度量。 通过使用加权函数组合第一度量和第二度量来计算组合度量。 使用组合度量检测目标信息模式。

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