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1. 发明申请

US20120207201A1 Systems and Methods for Data Detection Using Distance Based Tuning 有权
标题翻译：使用基于距离的调整进行数据检测的系统和方法
公开(公告)号：US20120207201A1
公开(公告)日：2012-08-16
申请号：US13310028
申请日：2011-12-02
申请人： Haitao Xia , Weijun Tan , Nenad Miladinovic , Shaohua Yang
发明人： Haitao Xia , Weijun Tan , Nenad Miladinovic , Shaohua Yang
IPC分类号： H04L27/01
CPC分类号： H04L25/03254 , H04L25/0305
摘要： Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is disclosed that includes an equalizer circuit and a data detection circuit. The equalizer circuit is operable to filter a series of samples based at least in part on a filter coefficient and to provide a corresponding series of filtered samples. The data detection circuit includes: a core data detector circuit and a coefficient determination circuit. The core data detector circuit is operable to perform a data detection process on the series of filtered samples and to provide a most likely path and a next most likely path. The coefficient determination circuit operable to update the filter coefficient based at least in part on the most likely path and the next most likely path.
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，公开了包括均衡器电路和数据检测电路的数据处理电路。均衡器电路可操作以至少部分地基于滤波器系数对一系列样本进行滤波，并提供相应的一系列滤波样本。数据检测电路包括：核心数据检测器电路和系数确定电路。核心数据检测器电路可操作以对一系列经滤波的样本执行数据检测处理，并提供最可能的路径和下一个最可能的路径。系数确定电路可操作以至少部分地基于最可能的路径和下一个最可能的路径来更新滤波器系数。

2. 发明授权

US08699167B2 Systems and methods for data detection using distance based tuning 有权
标题翻译：使用基于距离调谐的数据检测系统和方法
公开(公告)号：US08699167B2
公开(公告)日：2014-04-15
申请号：US13310028
申请日：2011-12-02
申请人： Haitao Xia , Weijun Tan , Nenad Miladinovic , Shaohua Yang
发明人： Haitao Xia , Weijun Tan , Nenad Miladinovic , Shaohua Yang
IPC分类号： G11B5/035 , H03H7/30 , H03H7/40 , H03K5/159
CPC分类号： H04L25/03254 , H04L25/0305
摘要： Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is disclosed that includes an equalizer circuit and a data detection circuit. The equalizer circuit is operable to filter a series of samples based at least in part on a filter coefficient and to provide a corresponding series of filtered samples. The data detection circuit includes: a core data detector circuit and a coefficient determination circuit. The core data detector circuit is operable to perform a data detection process on the series of filtered samples and to provide a most likely path and a next most likely path. The coefficient determination circuit operable to update the filter coefficient based at least in part on the most likely path and the next most likely path.
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，公开了包括均衡器电路和数据检测电路的数据处理电路。均衡器电路可操作以至少部分地基于滤波器系数对一系列样本进行滤波，并提供相应的一系列滤波样本。数据检测电路包括：核心数据检测器电路和系数确定电路。核心数据检测器电路可操作以对一系列经滤波的样本执行数据检测处理，并提供最可能的路径和下一个最可能的路径。系数确定电路可操作以至少部分地基于最可能的路径和下一个最可能的路径来更新滤波器系数。

3. 发明申请

US20110205653A1 Systems and Methods for Data Recovery 审中-公开
标题翻译：数据恢复的系统和方法
公开(公告)号：US20110205653A1
公开(公告)日：2011-08-25
申请号：US12712136
申请日：2010-02-24
申请人： George Mathew , Shaohua Yang , Haitao Xia , Nenad Miladinovic
发明人： George Mathew , Shaohua Yang , Haitao Xia , Nenad Miladinovic
IPC分类号： G11B27/36
CPC分类号： G11B20/1816 , G11B5/59616 , G11B2020/1287 , G11B2020/1476 , G11B2020/185 , H03M13/33
摘要： Various embodiments of the present invention provide systems and methods for identifying a reproducible location on a storage medium. As an example, a circuit is described that include a media defect detector and an anchor fixing circuit. The media defect detector is operable to identify a media defect, and the anchor fixing circuit is operable to identify a location relative to the media defect. The location is reproducible.
摘要翻译：本发明的各种实施例提供用于识别存储介质上的可再现位置的系统和方法。作为示例，描述了包括介质缺陷检测器和锚固定电路的电路。介质缺陷检测器可操作以识别介质缺陷，并且锚固定电路可操作以识别相对于介质缺陷的位置。该位置是可重现的。

4. 发明授权

US08750447B2 Systems and methods for variable thresholding in a pattern detector 有权
标题翻译：模式检测器中可变阈值的系统和方法
公开(公告)号：US08750447B2
公开(公告)日：2014-06-10
申请号：US12917756
申请日：2010-11-02
申请人： Nenad Miladinovic , Haitao Xia , Shaohua Yang
发明人： Nenad Miladinovic , Haitao Xia , Shaohua Yang
IPC分类号： H04L7/06
CPC分类号： G11B20/10222 , G11B20/10268 , G11B20/1403 , G11B2020/1287 , G11B2220/2516 , H04B2203/5458 , H04L7/042
摘要： Various embodiments of the present invention provide systems and methods for pattern identification. As an example, a pattern detection circuit is discussed that include: a distance calculation circuit operable to calculate a distance value corresponding to a difference between a first pattern and a second pattern; a threshold comparator circuit operable to compare the distance value to a variable threshold value; and a threshold value calculation circuit. The threshold value calculation circuit is operable to modify the variable threshold value based at least in part on the distance value.
摘要翻译：本发明的各种实施例提供了用于模式识别的系统和方法。作为示例，讨论了包括：距离计算电路，用于计算对应于第一图案和第二图案之间的差的距离值; 阈值比较器电路，用于将距离值与可变阈值进行比较; 和阈值计算电路。阈值计算电路可操作以至少部分地基于距离值来修改可变阈值。

5. 发明申请

US20120106607A1 Systems and Methods for Variable Thresholding in a Pattern Detector 有权
标题翻译：模式检测器中可变阈值的系统和方法
公开(公告)号：US20120106607A1
公开(公告)日：2012-05-03
申请号：US12917756
申请日：2010-11-02
申请人： Nenad Miladinovic , Haitao Xia , Shaohua Yang
发明人： Nenad Miladinovic , Haitao Xia , Shaohua Yang
IPC分类号： H04B3/46
CPC分类号： G11B20/10222 , G11B20/10268 , G11B20/1403 , G11B2020/1287 , G11B2220/2516 , H04B2203/5458 , H04L7/042
摘要： Various embodiments of the present invention provide systems and methods for pattern identification. As an example, a pattern detection circuit is discussed that include: a distance calculation circuit operable to calculate a distance value corresponding to a difference between a first pattern and a second pattern; a threshold comparator circuit operable to compare the distance value to a variable threshold value; and a threshold value calculation circuit. The threshold value calculation circuit is operable to modify the variable threshold value based at least in part on the distance value.
摘要翻译：本发明的各种实施例提供了用于模式识别的系统和方法。作为示例，讨论了包括：距离计算电路，用于计算对应于第一图案和第二图案之间的差的距离值; 阈值比较器电路，用于将距离值与可变阈值进行比较; 和阈值计算电路。阈值计算电路可操作以至少部分地基于距离值来修改可变阈值。

6. 发明申请

US20130007551A1 Stochastic Stream Decoding of Binary LDPC Codes 有权
标题翻译：二进制LDPC码的随机流解码
公开(公告)号：US20130007551A1
公开(公告)日：2013-01-03
申请号：US13174537
申请日：2011-06-30
申请人： Anantha Raman Krishnan , Nenad Miladinovic , Yang Han , Shaohua Yang
发明人： Anantha Raman Krishnan , Nenad Miladinovic , Yang Han , Shaohua Yang
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/1117 , H03M13/6577
摘要： Various embodiments of the present invention provide systems and methods for stochastic stream decoding of binary LDPC codes. For example, a data decoder circuit is discussed that includes a number of variable nodes and check nodes, with serial connections between the variable nodes and the check nodes. The variable nodes are each operable to perform a real-valued computation of a variable node to check node message for each neighboring check node. The check nodes are operable to perform a real-valued computation of a check node to variable node message for each neighboring variable node. The messages are passed iteratively between the variable nodes and the check nodes.
摘要翻译：本发明的各种实施例提供了用于二进制LDPC码的随机流解码的系统和方法。例如，讨论了包括多个可变节点和校验节点的数据解码器电路，其中变量节点和校验节点之间具有串行连接。变量节点各自可操作以执行变量节点的实值计算，以检查每个相邻校验节点的节点消息。检查节点可操作用于对每个相邻变量节点执行校验节点对可变节点消息的实值计算。消息在变量节点和校验节点之间迭代地传递。

7. 发明申请

US20110292535A1 METHODS AND APPARATUS FOR SYNCHRONIZATION MARK DETECTION BASED ON A POSITION OF AN EXTREME DISTANCE METRIC 有权
标题翻译：基于极限距离位置的同步标记检测方法与装置
公开(公告)号：US20110292535A1
公开(公告)日：2011-12-01
申请号：US12790249
申请日：2010-05-28
申请人： Erich F. Haratsch , Shaohua Yang , Nenad Miladinovic , Yuan Xing Lee
发明人： Erich F. Haratsch , Shaohua Yang , Nenad Miladinovic , Yuan Xing Lee
IPC分类号： G11B5/09
CPC分类号： G11B20/10009 , G11B5/59616 , G11B20/1403 , G11B27/3027 , G11B2020/1287 , G11B2020/1476 , G11B2220/2516 , H04L7/08
摘要： Methods and apparatus are provided for detection of a synchronization mark based on a position of an extreme distance metric. A synchronization mark is detected in a received signal by computing a distance metric between the received signal and an ideal version of the received signal expected when reading the synchronization mark, wherein the distance metric is computed for a plurality of positions within a search window; determining a substantially extreme distance metric within the search window; and detecting the synchronization mark based on a position of the substantially extreme distance metric. The distance metric can comprise a sum of square differences or a Euclidean distance between the received signal and the ideal version of the received signal.
摘要翻译：提供了用于基于极距离度量的位置来检测同步标记的方法和装置。通过计算接收到的信号与读取同步标记之间期望的接收信号的理想版本之间的距离度量，在接收信号中检测同步标记，其中针对搜索窗口内的多个位置计算距离度量; 确定搜索窗口内的基本上极端的距离度量; 以及基于所述基本上极端的距离度量的位置来检测所述同步标记。距离度量可以包括平方差的和或接收信号与接收信号的理想版本之间的欧氏距离。

8. 发明授权

US08650451B2 Stochastic stream decoding of binary LDPC codes 有权
标题翻译：二进制LDPC码的随机流解码
公开(公告)号：US08650451B2
公开(公告)日：2014-02-11
申请号：US13174537
申请日：2011-06-30
申请人： Anantha Raman Krishnan , Nenad Miladinovic , Yang Han , Shaohua Yang
发明人： Anantha Raman Krishnan , Nenad Miladinovic , Yang Han , Shaohua Yang
IPC分类号： H03M13/00
CPC分类号： H03M13/1117 , H03M13/6577
摘要： Various embodiments of the present invention provide systems and methods for stochastic stream decoding of binary LDPC codes. For example, a data decoder circuit is discussed that includes a number of variable nodes and check nodes, with serial connections between the variable nodes and the check nodes. The variable nodes are each operable to perform a real-valued computation of a variable node to check node message for each neighboring check node. The check nodes are operable to perform a real-valued computation of a check node to variable node message for each neighboring variable node. The messages are passed iteratively between the variable nodes and the check nodes.
摘要翻译：本发明的各种实施例提供了用于二进制LDPC码的随机流解码的系统和方法。例如，讨论了包括多个可变节点和校验节点的数据解码器电路，其中变量节点和校验节点之间具有串行连接。变量节点各自可操作以执行变量节点的实值计算，以检查每个相邻校验节点的节点消息。检查节点可操作用于对每个相邻变量节点执行校验节点对可变节点消息的实值计算。消息在变量节点和校验节点之间迭代地传递。

9. 发明授权

US08587888B2 Methods and apparatus for synchronization mark detection based on a position of an extreme distance metric 有权
标题翻译：基于极端距离度量位置的同步标记检测方法和装置
公开(公告)号：US08587888B2
公开(公告)日：2013-11-19
申请号：US12790249
申请日：2010-05-28
申请人： Erich F. Haratsch , Shaohua Yang , Nenad Miladinovic , Yuan Xing Lee
发明人： Erich F. Haratsch , Shaohua Yang , Nenad Miladinovic , Yuan Xing Lee
IPC分类号： G11B5/09
CPC分类号： G11B20/10009 , G11B5/59616 , G11B20/1403 , G11B27/3027 , G11B2020/1287 , G11B2020/1476 , G11B2220/2516 , H04L7/08
摘要： Methods and apparatus are provided for detection of a synchronization mark based on a position of an extreme distance metric. A synchronization mark is detected in a received signal by computing a distance metric between the received signal and an ideal version of the received signal expected when reading the synchronization mark, wherein the distance metric is computed for a plurality of positions within a search window; determining a substantially extreme distance metric within the search window; and detecting the synchronization mark based on a position of the substantially extreme distance metric. The distance metric can comprise a sum of square differences or a Euclidean distance between the received signal and the ideal version of the received signal.
摘要翻译：提供了用于基于极距离度量的位置来检测同步标记的方法和装置。在接收到的信号中通过计算接收信号与读取同步标记之间期望的接收信号的理想版本之间的距离度量来检测接收信号中的同步标记，其中为搜索窗口内的多个位置计算距离度量; 确定搜索窗口内的基本上极端的距离度量; 以及基于所述基本上极端的距离度量的位置来检测所述同步标记。距离度量可以包括平方差的和或接收信号与接收信号的理想版本之间的欧氏距离。

10. 发明授权

US09294132B1 Dual-stage data decoding for non-volatile memories 有权
标题翻译：用于非易失性存储器的双级数据解码
公开(公告)号：US09294132B1
公开(公告)日：2016-03-22
申请号：US13672047
申请日：2012-11-08
申请人： Borja Peleato-Inarrea , Andrei Vityaev , Nenad Miladinovic
发明人： Borja Peleato-Inarrea , Andrei Vityaev , Nenad Miladinovic
IPC分类号： H03M13/29 , G11B20/18 , H03M13/39 , G06F11/10 , H03M13/27
CPC分类号： H03M13/29 , G06F11/1048 , G06F11/1068 , G11B20/1833 , G11B2020/1846 , G11B2020/185 , H03M13/1108 , H03M13/1117 , H03M13/27 , H03M13/2948 , H03M13/3707 , H03M13/3927 , H03M13/6325
摘要： A method and system for decoding information read from a non-volatile memory uses a two stage decoding algorithm, where the first stage is a high-speed, low precision decoder and the second stage is a low-speed, high precision decoder. Most of the time only the first stage of the decoder is used, which lowers the average power consumption of the decoding process.
摘要翻译：用于解码从非易失性存储器读取的信息的方法和系统使用两级解码算法，其中第一级是高速，低精度解码器，第二级是低速，高精度解码器。大多数时候只使用解码器的第一级，这降低了解码过程的平均功耗。

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