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41. 发明授权

US07948699B2 Systems and methods for equalizer optimization in a storage access retry 有权
标题翻译：存储访问重试中均衡器优化的系统和方法
公开(公告)号：US07948699B2
公开(公告)日：2011-05-24
申请号：US12348236
申请日：2009-01-02
申请人： Jingfeng Liu , Hongwei Song , Richard Rauschmayer , Yuan Xing Lee
发明人： Jingfeng Liu , Hongwei Song , Richard Rauschmayer , Yuan Xing Lee
IPC分类号： G11B5/09
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10481 , G11B20/18 , G11B2020/183 , G11B2220/2516
摘要： Various embodiments of the present invention provide data processing circuits that include a multiplexer, a memory buffer, a data processing circuit, and a channel setting modification circuit. A first input of the multiplexer receives an input data set and a second input of the multiplexer receives a buffered data set. The multiplexer provides either the input data set or the buffered data set as a multiplexer output based upon a select signal. The memory buffer receives the multiplexer output and provides the buffered data set. Operation of the data processing circuit is at least in part governed by channel settings. The data processing circuit receives the multiplexer output and performs a data detection process. The select signal is asserted to select the buffered data set when the data detection process fails, and is asserted to select the input data set when the data detection process succeeds. The channel setting modification circuit is operable to modify the channel settings when the data detection process fails.
摘要翻译：本发明的各种实施例提供了包括多路复用器，存储器缓冲器，数据处理电路和通道设置修改电路的数据处理电路。多路复用器的第一输入接收输入数据集，多路复用器的第二输入接收缓冲数据集。复用器根据选择信号提供输入数据组或缓冲数据组作为多路复用器输出。存储器缓冲器接收多路复用器输出并提供缓冲数据集。数据处理电路的操作至少部分由通道设置决定。数据处理电路接收复用器输出并执行数据检测处理。当数据检测过程失败时，选择信号被置位以选择缓冲数据集，当数据检测过程成功时，选择信号选择输入数据集。当数据检测处理失败时，通道设置修改电路可操作以修改通道设置。

42. 发明申请

US20100172046A1 Systems and Methods for Equalizer Optimization in a Storage Access Retry 有权
标题翻译：存储访问重试中均衡器优化的系统和方法
公开(公告)号：US20100172046A1
公开(公告)日：2010-07-08
申请号：US12348236
申请日：2009-01-02
申请人： Jingfeng Liu , Hongwei Song , Richard Rauschmayer , Yuan Xing Lee
发明人： Jingfeng Liu , Hongwei Song , Richard Rauschmayer , Yuan Xing Lee
IPC分类号： G11B20/10
CPC分类号： G11B20/10009 , G11B20/10046 , G11B20/10055 , G11B20/10481 , G11B20/18 , G11B2020/183 , G11B2220/2516
摘要： Various embodiments of the present invention provide data processing circuits that include a multiplexer, a memory buffer, a data processing circuit, and a channel setting modification circuit. A first input of the multiplexer receives an input data set and a second input of the multiplexer receives a buffered data set. The multiplexer provides either the input data set or the buffered data set as a multiplexer output based upon a select signal. The memory buffer receives the multiplexer output and provides the buffered data set. Operation of the data processing circuit is at least in part governed by channel settings. The data processing circuit receives the multiplexer output and performs a data detection process. The select signal is asserted to select the buffered data set when the data detection process fails, and is asserted to select the input data set when the data detection process succeeds. The channel setting modification circuit is operable to modify the channel settings when the data detection process fails.
摘要翻译：本发明的各种实施例提供了包括多路复用器，存储器缓冲器，数据处理电路和通道设置修改电路的数据处理电路。多路复用器的第一输入接收输入数据集，多路复用器的第二输入接收缓冲数据集。复用器根据选择信号提供输入数据组或缓冲数据组作为多路复用器输出。存储器缓冲器接收多路复用器输出并提供缓冲数据集。数据处理电路的操作至少部分由通道设置决定。数据处理电路接收复用器输出并执行数据检测处理。当数据检测过程失败时，选择信号被置位以选择缓冲数据集，当数据检测过程成功时，选择信号选择输入数据集。当数据检测处理失败时，通道设置修改电路可操作以修改通道设置。

43. 发明授权

US08804260B2 Systems and methods for inter-track interference compensation 有权
标题翻译：轨道间干扰补偿的系统和方法
公开(公告)号：US08804260B2
公开(公告)日：2014-08-12
申请号：US13186174
申请日：2011-07-19
申请人： George Mathew , Jongseung Park , Shaohua Yang , Erich F. Haratsch , Ming Jin , Yuan Xing Lee
发明人： George Mathew , Jongseung Park , Shaohua Yang , Erich F. Haratsch , Ming Jin , Yuan Xing Lee
IPC分类号： G11B5/09
CPC分类号： G11B20/10046 , G11B5/012 , G11B5/09 , G11B19/045 , G11B20/10398 , G11B20/1217 , G11B2020/10759 , G11B2020/1232 , G11B2020/1298 , G11B2220/2516
摘要： Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is discussed that includes: a data buffer, an inter-track interference response circuit, and an inter-track interference signal estimator circuit. The data buffer is operable to store a previous track data set. The inter-track interference response circuit is operable to estimate an inter-track interference response from the previous track data set based at least in part on the previous track data set and a current track data set. The inter-track interference signal estimator circuit is operable to calculate an inter-track interference from the previous track data set based at least in part on the previous track data set and the inter-track interference response from the previous track data set.
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，讨论了包括数据缓冲器，轨道间干扰响应电路和轨道间干扰信号估计器电路的数据处理电路。数据缓冲器可操作以存储先前的轨迹数据集。轨道间干扰响应电路可用于至少部分地基于先前的轨道数据集和当前轨道数据集来估计来自先前轨道数据集的轨道间干扰响应。轨道间干扰信号估计器电路可用于至少部分地基于先前的轨道数据集和来自前一轨道数据集的轨道间干扰响应来计算来自先前轨道数据集的轨道间干扰。

44. 发明申请

US20120063022A1 Systems and Methods for Inter-track Interference Compensation 有权
标题翻译：轨道间干扰补偿的系统和方法
公开(公告)号：US20120063022A1
公开(公告)日：2012-03-15
申请号：US13186174
申请日：2011-07-19
申请人： George Mathew , Jongseung Park , Shaohua Yang , Erich F. Haratsch , Ming Jin , Yuan Xing Lee
发明人： George Mathew , Jongseung Park , Shaohua Yang , Erich F. Haratsch , Ming Jin , Yuan Xing Lee
IPC分类号： G11B5/09
CPC分类号： G11B20/10046 , G11B5/012 , G11B5/09 , G11B19/045 , G11B20/10398 , G11B20/1217 , G11B2020/10759 , G11B2020/1232 , G11B2020/1298 , G11B2220/2516
摘要： Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is discussed that includes: a data buffer, an inter-track interference response circuit, and an inter-track interference signal estimator circuit. The data buffer is operable to store a previous track data set. The inter-track interference response circuit is operable to estimate an inter-track interference response from the previous track data set based at least in part on the previous track data set and a current track data set. The inter-track interference signal estimator circuit is operable to calculate an inter-track interference from the previous track data set based at least in part on the previous track data set and the inter-track interference response from the previous track data set.
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，讨论了包括数据缓冲器，轨道间干扰响应电路和轨道间干扰信号估计器电路的数据处理电路。数据缓冲器可操作以存储先前的轨迹数据集。轨道间干扰响应电路可用于至少部分地基于先前的轨道数据集和当前轨道数据集来估计来自先前轨道数据集的轨道间干扰响应。轨道间干扰信号估计器电路可用于至少部分地基于先前的轨道数据集和来自前一轨道数据集的轨道间干扰响应来计算来自先前轨道数据集的轨道间干扰。

45. 发明申请

US20110235490A1 AMPLITUDE-BASED APPROACH FOR DETECTION AND CLASSIFICATION OF HARD-DISC DEFECT REGIONS 失效
标题翻译：用于检测和分类硬盘区缺陷区域的基于幅度的方法
公开(公告)号：US20110235490A1
公开(公告)日：2011-09-29
申请号：US12729312
申请日：2010-03-23
申请人： Shaohua Yang , George Mathew , Yang Han , Zongwang Li , Yuan Xing Lee
发明人： Shaohua Yang , George Mathew , Yang Han , Zongwang Li , Yuan Xing Lee
IPC分类号： G11B27/36
CPC分类号： G11B20/1816 , G11B20/1883 , G11B2005/0018 , G11B2020/1823 , G11B2220/20 , G11B2220/2516
摘要： In a hard-disc drive, a defect region on the hard disc is classified as corresponding to either thermal asperity (TA) or media defect (MD) by generating two statistical measures. A first measure (e.g., ∝1) is based on (i) the magnitudes of one or both of signal values (e.g., equalizer input or output signal values) and the corresponding expected values of those signal values and (ii) the signs of one or both of the signal values and the expected signal values. A second measure (e.g., ∝2) is based on the magnitudes of one or both of the signal values and the expected signal values, but not the signs of either the signal values or the expected signal values. The two measures are then compared to determine whether the defect region corresponds to TA or MD.
摘要翻译：在硬盘驱动器中，通过产生两个统计测量值将硬盘上的缺陷区域分类为对应于热粗糙度（TA）或介质缺陷（MD）。第一测量（例如，α1）基于（i）信号值（例如，均衡器输入或输出信号值）中的一个或两个的大小以及那些信号值的相应期望值，以及（ii）一个或两个信号值和预期信号值。第二量度（例如，α2）基于信号值和预期信号值中的一个或两个的幅度，而不是信号值或期望信号值的符号。然后比较两个测量值以确定缺陷区域是否对应于TA或MD。

46. 发明授权

US08161357B2 Systems and methods for using intrinsic data for regenerating data from a defective medium 有权
标题翻译：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
申请人： Weijun Tan , Shaohua Yang , George Mathew , Kelly Fitzpatrick , Hao Zhong , Yuan Xing Lee
发明人： Weijun Tan , Shaohua Yang , George Mathew , Kelly Fitzpatrick , Hao Zhong , Yuan Xing Lee
IPC分类号： H03M13/00
CPC分类号： H03M13/2957 , H03M13/1102 , H03M13/6331
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。

47. 发明授权

US08095855B2 Systems and methods for regenerating data from a defective medium 失效
标题翻译：从缺陷介质再生数据的系统和方法
公开(公告)号：US08095855B2
公开(公告)日：2012-01-10
申请号：US12111902
申请日：2008-04-29
申请人： Weijun Tan , Shaohua Yang , George Mathew , Kelly Fitzpatrick , Hao Zhong , Yuan Xing Lee
发明人： Weijun Tan , Shaohua Yang , George Mathew , Kelly Fitzpatrick , Hao Zhong , Yuan Xing Lee
IPC分类号： H03M13/00
CPC分类号： G06F11/0793 , G06F11/0727 , G11B20/1816
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。

48. 发明授权

US08031420B2 Frequency-based approach for detection and classification of hard-disc defect regions 有权
标题翻译：基于频率的硬盘缺陷区域检测和分类方法
公开(公告)号：US08031420B2
公开(公告)日：2011-10-04
申请号：US12707820
申请日：2010-02-18
申请人： George Mathew , Yang Han , Shaohua Yang , Zongwang Li , Yuan Xing Lee
发明人： George Mathew , Yang Han , Shaohua Yang , Zongwang Li , Yuan Xing Lee
IPC分类号： G11B27/36 , G11B5/02
CPC分类号： G11B20/1816 , G11B19/041 , G11B27/36
摘要： In a hard-disc drive read channel, frequency-based measures are generated at two different data frequencies (e.g., 2T and DC) by applying a transform, such as a discrete Fourier transform (DFT), to signal values, such as ADC or equalizer output values, corresponding to, e.g., a 2T data pattern stored on the hard disc. The frequency-based measures are used to detect defect regions on the hard disc and/or to classify defect regions as being due to either thermal asperity (TA) or drop-out media defect (MD).
摘要翻译：在硬盘驱动读取通道中，通过将诸如离散付里叶变换（DFT）之类的变换应用于信号值（例如ADC或ADC），以两个不同的数据频率（例如，2T和DC）生成基于频率的测量均衡器输出值，对应于例如存储在硬盘上的2T数据模式。基于频率的测量用于检测硬盘上的缺陷区域和/或将缺陷区域分类为由于热粗糙度（TA）或脱落介质缺陷（MD）引起的。

49. 发明申请

US20100265608A1 Systems and Methods for Storage Channel Testing 有权
标题翻译：存储通道测试的系统和方法
公开(公告)号：US20100265608A1
公开(公告)日：2010-10-21
申请号：US12425757
申请日：2009-04-17
申请人： Yuan Xing Lee , George Mathew , Shaohua Yang , Hongwel Song , Weijun Tan , Hao Zhong
发明人： Yuan Xing Lee , George Mathew , Shaohua Yang , Hongwel Song , Weijun Tan , Hao Zhong
IPC分类号： G11B27/36
CPC分类号： G11B20/182 , G11B2220/2516
摘要： Various embodiments of the present invention provide systems and methods for validating elements of storage devices. A an example, various embodiments of the present invention provide semiconductor devices that include a write path circuit, a read path circuit and a validation circuit. The write path circuit is operable to receive a data input and to convert the data input into write data suitable for storage to a storage medium. The read path circuit is operable to receive read data and to convert the read data into a data output. The validation circuit is operable to: receive the write data, augment the write data with a first noise sequence to yield a first augmented data series; and augment a derivative of the first augmented data series with a second noise sequence to yield the read data.
摘要翻译：本发明的各种实施例提供用于验证存储设备的元件的系统和方法。作为示例，本发明的各种实施例提供包括写入路径电路，读取路径电路和验证电路的半导体器件。写入路径电路可操作用于接收数据输入并将数据输入转换成适合于存储的写数据到存储介质。读路径电路可操作以接收读数据并将读数据转换为数据输出。验证电路可操作用于：接收写数据，用第一噪声序列增加写数据以产生第一增强数据序列; 并且用第二噪声序列来增加第一增强数据序列的导数以产生读取的数据。

50. 发明申请

US20090235146A1 Systems and Methods for Using Intrinsic Data for Regenerating Data from a Defective Medium 有权
标题翻译：使用内在数据从有缺陷的介质再生数据的系统和方法
公开(公告)号：US20090235146A1
公开(公告)日：2009-09-17
申请号：US12111867
申请日：2008-04-29
申请人： Weijun Tan , Shaohua Yang , George Mathew , Kelly Fitzpatrick , Hao Zhong , Yuan Xing Lee
发明人： Weijun Tan , Shaohua Yang , George Mathew , Kelly Fitzpatrick , Hao Zhong , Yuan Xing Lee
IPC分类号： H03M13/45 , G06F11/08
CPC分类号： H03M13/2957 , H03M13/1102 , H03M13/6331
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。

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