Systems and methods for recovering information from a defective medium
    1.
    发明授权
    Systems and methods for recovering information from a defective medium 有权
    从缺陷介质中恢复信息的系统和方法

    公开(公告)号:US08411537B2

    公开(公告)日:2013-04-02

    申请号:US12399750

    申请日:2009-03-06

    IPC分类号: G06F11/20

    摘要: Various embodiments of the present invention provide systems and methods for data regeneration. For example, a system for regenerating data is disclosed. The system includes a media defect detector that is operable to identify a potential media defect associated with a medium from which an input signal is derived, an attenuation amplitude detector that generates an attenuation factor, and a data detector. The data detector includes a first data path and a second data path. The first data path includes a bank of two or more selectable noise prediction filters and the second data path includes a fixed noise prediction filter and the attenuation factor. The data detector processes a derivative of the input signal using the second data path when the potential media defect is indicated, and processes the derivative of the input signal using the first data path when a media defect is not indicated.

    摘要翻译: 本发明的各种实施例提供了用于数据再生的系统和方法。 例如,公开了一种用于再生数据的系统。 该系统包括媒体缺陷检测器,其可操作以识别与从其导出输入信号的介质相关联的潜在介质缺陷,产生衰减因子的衰减幅度检测器和数据检测器。 数据检测器包括第一数据路径和第二数据路径。 第一数据路径包括一组两个或多个可选择的噪声预测滤波器,并且第二数据路径包括固定噪声预测滤波器和衰减因子。 当指示潜在介质缺陷时,数据检测器使用第二数据路径处理输入信号的导数,并且当没有指示介质缺陷时,使用第一数据路径处理输入信号的导数。

    Systems and Methods for Symbol Selective Scaling in a Data Processing Circuit
    3.
    发明申请
    Systems and Methods for Symbol Selective Scaling in a Data Processing Circuit 审中-公开
    数据处理电路中符号选择性缩放的系统和方法

    公开(公告)号:US20130111297A1

    公开(公告)日:2013-05-02

    申请号:US13284826

    申请日:2011-10-28

    IPC分类号: H03M13/09

    摘要: Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing system is discussed that includes: a data detector circuit, a symbol selective scaling circuit, and a data decoder circuit. The data detector circuit is operable to apply a data detection algorithm to a data input guided by a first data set derived from a decoded output to yield a detected output. The symbol selective scaling circuit is operable to selectively scale one or more symbols of a second data set derived from the detected output to yield a scaled data set. The data decoder circuit operable to apply a data decode algorithm to a third data set derived from the scaled data set to yield the decoded 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。 作为示例,讨论了包括数据检测器电路,符号选择缩放电路和数据解码器电路的数据处理系统。 数据检测器电路可操作以将数据检测算法应用于由从解码输出导出的第一数据集引导的数据输入,以产生检测到的输出。 符号选择性缩放电路可操作以选择性地缩放从检测到的输出导出的第二数据集的一个或多个符号,以产生缩放的数据集。 数据解码器电路可操作以将数据解码算法应用于从缩放数据集导出的第三数据集,以产生解码输出。

    Systems and Methods for Phase Dependent Data Detection in Iterative Decoding
    4.
    发明申请
    Systems and Methods for Phase Dependent Data Detection in Iterative Decoding 有权
    迭代解码中相关数据检测的系统和方法

    公开(公告)号:US20110029837A1

    公开(公告)日:2011-02-03

    申请号:US12512235

    申请日:2009-07-30

    IPC分类号: H03M13/00 G11C29/00

    摘要: Various embodiments of the present invention provide systems and methods for data processing. For example, a data processing circuit is disclosed that includes a first data detection circuit that applies a phase dependent data detection algorithm to a data set such that a first output of the first data detection circuit varies depending upon a phase of the data set presented to the first data detection circuit. A first phase of the data set is presented to the first data detection circuit. The circuits further include a decoder circuit that applies a decoding algorithm to the first output to yield a decoded output, and a phase shift circuit that phase shifts the decoded output such that a second phase of the data set is provided as a phase shifted output. A second detection circuit applies a phase dependent data detection algorithm to the phase shifted output such that a second output of the second data detection circuit varies from the first output at least in part due to a different phase of the data set presented to the second data detection circuit.

    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,公开了一种数据处理电路,其包括第一数据检测电路,该第一数据检测电路将相关数据检测算法应用于数据组,使得第一数据检测电路的第一输出根据所呈现的数据集的相位而变化 第一数据检测电路。 将数据集的第一阶段呈现给第一数据检测电路。 这些电路还包括对第一输出应用解码算法以产生解码输出的解码器电路,以及相位移动电路,使得解码输出相移,使得提供数据组的第二相作为相移输出。 第二检测电路将相位相关数据检测算法应用于相移输出,使得第二数据检测电路的第二输出至少部分地由于呈现给第二数据的数据集的相位而从第一输出变化 检测电路。

    Systems and Methods for Regenerating Data from a Defective Medium
    6.
    发明申请
    Systems and Methods for Regenerating Data from a Defective Medium 失效
    从有缺陷的介质再生数据的系统和方法

    公开(公告)号:US20090235116A1

    公开(公告)日:2009-09-17

    申请号:US12111902

    申请日:2008-04-29

    IPC分类号: G06F11/07

    摘要: Various embodiments of the present invention provide systems and methods for data regeneration. For example, a system for data regeneration is disclosed that includes a data input derived from the medium. A data detector and a data recovery system receive the data input. The data detector provides a first soft output, and the data recovery system provides a second soft output. The first soft output and the second soft output are provided to a multiplexer. A media defect detector performs a media defect detection process, and provides a defect flag that indicates whether the data input is derived form a defective portion of the medium. The defect flag is provided to the multiplexer where it is used to select whether the first soft output or the second soft output is provides as an extrinsic output.

    摘要翻译: 本发明的各种实施例提供了用于数据再生的系统和方法。 例如,公开了一种用于数据再生的系统,其包括从介质导出的数据输入。 数据检测器和数据恢复系统接收数据输入。 数据检测器提供第一软输出,数据恢复系统提供第二软输出。 第一软输出和第二软输出被提供给多路复用器。 介质缺陷检测器执行介质缺陷检测处理,并且提供指示数据输入是否从介质的缺陷部分导出的缺陷标志。 缺陷标志被提供给多路复用器,其中它用于选择第一软输出或第二软输出是作为外在输出提供。

    Systems and methods for phase dependent data detection in iterative decoding
    7.
    发明授权
    Systems and methods for phase dependent data detection in iterative decoding 有权
    迭代解码中相位数据检测的系统和方法

    公开(公告)号:US08250431B2

    公开(公告)日:2012-08-21

    申请号:US12512235

    申请日:2009-07-30

    IPC分类号: H03M13/00

    摘要: Various embodiments of the present invention provide systems and methods for data processing. For example, a data processing circuit is disclosed that includes a first data detection circuit that applies a phase dependent data detection algorithm to a data set such that a first output of the first data detection circuit varies depending upon a phase of the data set presented to the first data detection circuit. A first phase of the data set is presented to the first data detection circuit. The circuits further include a decoder circuit that applies a decoding algorithm to the first output to yield a decoded output, and a phase shift circuit that phase shifts the decoded output such that a second phase of the data set is provided as a phase shifted output. A second detection circuit applies a phase dependent data detection algorithm to the phase shifted output such that a second output of the second data detection circuit varies from the first output at least in part due to a different phase of the data set presented to the second data detection circuit.

    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,公开了一种数据处理电路,其包括第一数据检测电路,该第一数据检测电路将相关数据检测算法应用于数据组,使得第一数据检测电路的第一输出根据所呈现的数据集的相位而变化 第一数据检测电路。 将数据集的第一阶段呈现给第一数据检测电路。 这些电路还包括对第一输出应用解码算法以产生解码输出的解码器电路,以及相位移动电路,使得解码输出相移,使得提供数据组的第二相作为相移输出。 第二检测电路将相位相关数据检测算法应用于相移输出,使得第二数据检测电路的第二输出至少部分地由于呈现给第二数据的数据集的相位而从第一输出变化 检测电路。

    Systems and Methods for Recovering Information from a Defective Medium
    8.
    发明申请
    Systems and Methods for Recovering Information from a Defective Medium 有权
    从有缺陷的介质中恢复信息的系统和方法

    公开(公告)号:US20100229031A1

    公开(公告)日:2010-09-09

    申请号:US12399750

    申请日:2009-03-06

    IPC分类号: G06F11/20

    摘要: Various embodiments of the present invention provide systems and methods for data regeneration. For example, a system for regenerating data is disclosed. The system includes a media defect detector that is operable to identify a potential media defect associated with a medium from which an input signal is derived, an attenuation amplitude detector that generates an attenuation factor, and a data detector. The data detector includes a first data path and a second data path. The first data path includes a bank of two or more selectable noise prediction filters and the second data path includes a fixed noise prediction filter and the attenuation factor. The data detector processes a derivative of the input signal using the second data path when the potential media defect is indicated, and processes the derivative of the input signal using the first data path when a media defect is not indicated.

    摘要翻译: 本发明的各种实施例提供了用于数据再生的系统和方法。 例如,公开了一种用于再生数据的系统。 该系统包括媒体缺陷检测器,其可操作以识别与从其导出输入信号的介质相关联的潜在介质缺陷,产生衰减因子的衰减幅度检测器和数据检测器。 数据检测器包括第一数据路径和第二数据路径。 第一数据路径包括一组两个或多个可选择的噪声预测滤波器,并且第二数据路径包括固定噪声预测滤波器和衰减因子。 当指示潜在介质缺陷时,数据检测器使用第二数据路径处理输入信号的导数,并且当没有指示介质缺陷时,使用第一数据路径处理输入信号的导数。

    Systems and methods for using intrinsic data for regenerating data from a defective medium
    10.
    发明授权
    Systems and methods for using intrinsic data for regenerating data from a defective medium 有权
    使用固有数据从有缺陷的介质再生数据的系统和方法

    公开(公告)号:US08161357B2

    公开(公告)日:2012-04-17

    申请号:US12111867

    申请日:2008-04-29

    IPC分类号: H03M13/00

    摘要: Various embodiments of the present invention provide systems and methods for data regeneration. For example, a system for data regeneration is disclosed that includes a data input derived from the medium. A data detector and a data recovery system receive the data input. The data detector provides a first soft output, and the data recovery system provides a second soft output. The first soft output and the second soft output are provided to a multiplexer. A media defect detector performs a media defect detection process, and provides a defect flag that indicates whether the data input is derived from a defective portion of the medium. The defect flag is provided to the multiplexer where it is used to select whether the first soft output or the second soft output is provides as an extrinsic output.

    摘要翻译: 本发明的各种实施例提供了用于数据再生的系统和方法。 例如,公开了一种用于数据再生的系统,其包括从介质导出的数据输入。 数据检测器和数据恢复系统接收数据输入。 数据检测器提供第一软输出,数据恢复系统提供第二软输出。 第一软输出和第二软输出被提供给多路复用器。 介质缺陷检测器执行介质缺陷检测处理,并提供指示是否从介质的缺陷部分导出数据输入的缺陷标志。 缺陷标志被提供给多路复用器,其中它用于选择第一软输出或第二软输出是作为外在输出提供。