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91 条记录 (耗时 0.021 秒)

    Saturation-based loop control assistance
    1.
    发明授权
    Saturation-based loop control assistance 有权
    基于饱和度的回路控制辅助

    公开(公告)号：US08854750B2

    公开(公告)日：2014-10-07

    申请号：US13562140

    申请日：2012-07-30

    申请人： Haotian Zhang ,  Haitao Xia

    发明人： Haotian Zhang ,  Haitao Xia

    IPC分类号： G11B5/02

    CPC分类号： H03G3/3052 ,  G11B20/10009

    摘要： The present inventions are related to systems and methods for data processing, and more particularly to data processing using distortion-correction loops with saturation-based assistance.

    摘要翻译： 本发明涉及用于数据处理的系统和方法，更具体地涉及使用基于饱和的协助的失真校正循环的数据处理。

    Zero gain start bias estimation
    2.
    发明授权
    Zero gain start bias estimation 有权
    零增益启动偏差估计

    公开(公告)号：US08824087B2

    公开(公告)日：2014-09-02

    申请号：US13564763

    申请日：2012-08-02

    申请人： Haotian Zhang ,  Scott Michael Dziak ,  Haitao Xia

    发明人： Haotian Zhang ,  Scott Michael Dziak ,  Haitao Xia

    IPC分类号： G11B5/03

    CPC分类号： G11B5/09 ,  G11B2005/0008

    摘要： A method and system for estimating a zero gain start (ZGS) bias in a read channel is disclosed. The method may include: receiving preamble samples within a fixed-length window selected for ZGS calculation; calculating an energy associated with a 2T frequency in the preamble samples; calculating an energy associated with non-2T frequencies in the preamble samples; and calculating the ZGS bias based on the energy associated with the 2T frequency in the preamble samples and the energy associated with non-2T frequencies in the preamble samples.

    摘要翻译： 公开了一种用于估计读取通道中的零增益开始（ZGS）偏置的方法和系统。 该方法可以包括：在为ZGS计算选择的固定长度窗口内接收前导码样本; 计算在前导码样本中与2T频率相关联的能量; 计算在前导码样本中与非2T频率相关联的能量; 并且基于在前导码样本中与2T频率相关联的能量和与前同步码样本中的非2T频率相关联的能量来计算ZGS偏差。

    ZERO GAIN START BIAS ESTIMATION
    3.
    发明申请
    ZERO GAIN START BIAS ESTIMATION 有权
    零增益偏差估计

    公开(公告)号：US20140036385A1

    公开(公告)日：2014-02-06

    申请号：US13564763

    申请日：2012-08-02

    申请人： Haotian Zhang ,  Scott Michael Dziak ,  Haitao Xia

    发明人： Haotian Zhang ,  Scott Michael Dziak ,  Haitao Xia

    IPC分类号： G11B5/03

    CPC分类号： G11B5/09 ,  G11B2005/0008

    摘要： A method and system for estimating a zero gain start (ZGS) bias in a read channel is disclosed. The method may include: receiving preamble samples within a fixed-length window selected for ZGS calculation; calculating an energy associated with a 2T frequency in the preamble samples; calculating an energy associated with non-2T frequencies in the preamble samples; and calculating the ZGS bias based on the energy associated with the 2T frequency in the preamble samples and the energy associated with non-2T frequencies in the preamble samples.

    摘要翻译： 公开了一种用于估计读通道中的零增益开始（ZGS）偏置的方法和系统。 该方法可以包括：在为ZGS计算选择的固定长度窗口内接收前导码样本; 计算在前导码样本中与2T频率相关联的能量; 计算在前导码样本中与非2T频率相关联的能量; 并且基于在前导码样本中与2T频率相关联的能量和与前同步码样本中的非2T频率相关联的能量来计算ZGS偏差。

    Saturation-Based Loop Control Assistance
    4.
    发明申请
    Saturation-Based Loop Control Assistance 有权
    基于饱和度的循环控制协助

    公开(公告)号：US20140029128A1

    公开(公告)日：2014-01-30

    申请号：US13562140

    申请日：2012-07-30

    申请人： Haotian Zhang ,  Haitao Xia

    发明人： Haotian Zhang ,  Haitao Xia

    IPC分类号： G11B5/09 ,  H03L5/00

    CPC分类号： H03G3/3052 ,  G11B20/10009

    摘要： The present inventions are related to systems and methods for data processing, and more particularly to data processing using distortion-correction loops with saturation-based assistance.

    摘要翻译： 本发明涉及用于数据处理的系统和方法，更具体地涉及使用基于饱和的协助的失真校正循环的数据处理。

    LDPC decoder with fractional unsatisfied check quality metric
    6.
    发明授权
    LDPC decoder with fractional unsatisfied check quality metric 有权
    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。

    Systems and methods for track width determination
    7.
    发明授权
    Systems and methods for track width determination 有权
    轨道宽度确定的系统和方法

    公开(公告)号：US08854752B2

    公开(公告)日：2014-10-07

    申请号：US13100063

    申请日：2011-05-03

    申请人： Ming Jin ,  Haitao Xia

    发明人： Ming Jin ,  Haitao Xia

    IPC分类号： G11B27/36 ,  G11B19/04 ,  G11B20/22

    CPC分类号： G11B27/36 ,  G11B19/045 ,  G11B20/22 ,  G11B2220/2516

    摘要： Various embodiments of the present invention provide systems and methods for read sensor characterization. As an example, a data storage device is disclosed that includes a storage medium, a read/write head assembly disposed in relation to the storage medium, and a track width setting circuit. The track width setting circuit is operable to: write data to at least a first track and a second track on the storage medium, read data from the second track, determine an estimated track offset where interference from the data written to the first track is insubstantial, and modify at least the second track width based at least in part on the estimated track offset. The first track is a first track width and the second track is a second track width.

    摘要翻译： 本发明的各种实施例提供用于读取传感器表征的系统和方法。 作为示例，公开了包括存储介质，相对于存储介质设置的读/写头组件和轨道宽度设置电路的数据存储设备。 轨道宽度设置电路可操作用于：将数据写入存储介质上的至少第一磁道和第二磁道，从第二磁道读取数据，确定估计的磁道偏移量，其中写入第一磁道的数据的干扰是非实质的 并且至少部分地基于估计的轨道偏移来修改至少第二轨道宽度。 第一轨道是第一轨道宽度，第二轨道是第二轨道宽度。