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1.发明授权Structured set partitioning and multilevel coding for partial response channels 有权部分响应通道的结构化分组和多级编码公开(公告)号：US07205912B1
公开(公告)日：2007-04-17
申请号：US11263128
申请日：2005-10-31
申请人： Xueshi Yang , Alexander Kuznetsov
发明人： Xueshi Yang , Alexander Kuznetsov
IPC分类号： H03M7/00
CPC分类号： G11B20/10009 , G11B20/10055
摘要： A method and apparatus for channel coding useful for recording channel and other communications applications. The proposed channel coding method is actualized via structured set partition (SSP) in conjunction with multilevel coding (MLC) and offers performance gains over conventional coding schemes with comparable complexity at the bit-error rate (BER) level as well as the sector failure rate (SFR) level.
摘要翻译： 一种用于记录信道和其他通信应用的信道编码的方法和装置。 提出的信道编码方法通过结构化分组（SSP）结合多级编码（MLC）实现，并且提供了比传统编码方案具有更高的比特错误率（BER）级别的复杂度以及扇区故障率 （SFR）水平。
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公开(公告)号：US20050168358A1
公开(公告)日：2005-08-04
申请号：US10767831
申请日：2004-01-29
申请人： Alexander Kuznetsov , Erozan Kurtas
发明人： Alexander Kuznetsov , Erozan Kurtas
CPC分类号： H03M5/145 , G11B20/1426
摘要： A system and method of forming RLL coded data streams with separator blocks has an RLL encoder and a channel encoder. The input code word is divided into data portions and a separator portion. The data portions are inserted into an output codeword without encoding. Each data portion is separated from a next data portion by a space. The separator portion is encoded into non-zero separator sub-matrices, which are stuffed into the spaces between the data portions. The separator portions and the data portions may be separately permuted without exceeding a maximum number of consecutive zeros.
摘要翻译： 用分离块形成RLL编码数据流的系统和方法具有RLL编码器和信道编码器。 输入代码字分为数据部分和分隔部分。 将数据部分插入到输出码字中而不进行编码。 每个数据部分与下一个数据部分分开一个空格。 分离器部分被编码成非零分离子子矩阵，其被填充到数据部分之间的空间中。 分离器部分和数据部分可以被分开排列而不超过最大数量的连续零。
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3.发明授权公开(公告)号：US09291554B2
公开(公告)日：2016-03-22
申请号：US14170150
申请日：2014-01-31
CPC分类号： G01N21/4788 , G01B21/30 , G01N21/84 , G01N21/95607 , G01N2021/95615 , G03F7/70625 , G06F17/40 , G06F19/00
摘要： Electromagnetic modeling of finite structures and finite illumination for metrology and inspection are described herein. In one embodiment, a method for evaluating a diffracting structure involves providing a model of the diffracting structure. The method involves computing background electric or magnetic fields of an environment of the diffracting structure. The method involves computing scattered electric or magnetic fields from the diffracting structure using a scattered field formulation based on the computed background fields. The method further involves computing spectral information for the model of the diffracting structure based on the computed scattered fields, and comparing the computed spectral information for the model with measured spectral information for the diffracting structure. In response to a good model fit, the method involves determining a physical characteristic of the diffracting structure based on the model of the diffracting structure.
摘要翻译： 本文描述了用于计量和检验的有限结构和有限照明的电磁建模。 在一个实施例中，用于评估衍射结构的方法包括提供衍射结构的模型。 该方法涉及计算衍射结构环境的背景电场或磁场。 该方法涉及使用基于所计算的背景场的散射场拟合来计算衍射结构中的散射电场或磁场。 该方法还涉及基于计算的散射场计算衍射结构模型的光谱信息，并将所计算的模型光谱信息与用于衍射结构的测量光谱信息进行比较。 响应于良好的模型拟合，该方法包括基于衍射结构的模型确定衍射结构的物理特性。
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4.发明申请公开(公告)号：US20140222380A1
公开(公告)日：2014-08-07
申请号：US14170150
申请日：2014-01-31
IPC分类号： G01N21/27
CPC分类号： G01N21/4788 , G01B21/30 , G01N21/84 , G01N21/95607 , G01N2021/95615 , G03F7/70625 , G06F17/40 , G06F19/00
摘要： Electromagnetic modeling of finite structures and finite illumination for metrology and inspection are described herein. In one embodiment, a method for evaluating a diffracting structure involves providing a model of the diffracting structure. The method involves computing background electric or magnetic fields of an environment of the diffracting structure. The method involves computing scattered electric or magnetic fields from the diffracting structure using a scattered field formulation based on the computed background fields. The method further involves computing spectral information for the model of the diffracting structure based on the computed scattered fields, and comparing the computed spectral information for the model with measured spectral information for the diffracting structure. In response to a good model fit, the method involves determining a physical characteristic of the diffracting structure based on the model of the diffracting structure.
摘要翻译： 本文描述了用于计量和检验的有限结构和有限照明的电磁建模。 在一个实施例中，用于评估衍射结构的方法包括提供衍射结构的模型。 该方法涉及计算衍射结构环境的背景电场或磁场。 该方法涉及使用基于所计算的背景场的散射场拟合来计算衍射结构中的散射电场或磁场。 该方法还涉及基于计算的散射场计算衍射结构模型的光谱信息，并将所计算的模型光谱信息与用于衍射结构的测量光谱信息进行比较。 响应于良好的模型拟合，该方法包括基于衍射结构的模型确定衍射结构的物理特性。
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公开(公告)号：US08307267B2
公开(公告)日：2012-11-06
申请号：US12048830
申请日：2008-03-14
IPC分类号： H03M13/03
CPC分类号： G11B20/10009 , G11B20/10287 , G11B20/10296 , G11B2220/2516
摘要： In a particular embodiment, a channel detector is disclosed that includes a programmable look-up table (LUT) to relate user bits to channel bits. The programmable LUT is adapted to be implemented on a state trellis of arbitrary radix. The channel detector further includes a sectional precoder coupled to a channel and having access to the programmable LUT. The sectional precoder is adapted to map channel bits to user bits and vice versa using a programmable LUT.
摘要翻译： 在特定实施例中，公开了一种信道检测器，其包括用于将用户比特与信道比特相关联的可编程查找表（LUT）。 可编程LUT适于在任意基数的状态网格上实现。 信道检测器还包括耦合到信道并且访问可编程LUT的分段预编码器。 分段预编码器适于使用可编程LUT将通道位映射到用户位，反之亦然。
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公开(公告)号：US06718502B1
公开(公告)日：2004-04-06
申请号：US09637233
申请日：2000-08-11
申请人： Alexander Kuznetsov , Qing-Wei Jia
发明人： Alexander Kuznetsov , Qing-Wei Jia
IPC分类号： H03M1300
CPC分类号： H03M13/255 , G11B20/10009 , H03M13/29 , H03M13/2903 , H03M13/2948 , H03M13/6331 , H03M13/6343 , H03M13/6511 , H04L25/03178 , H04L25/497
摘要： Precoders and their corresponding logic schemes, together with a method of using the precoders and their schemes to generate a media code sequence of symbols for data storage channels, with partial response equalization and a multilevel encoding/modulation scheme. Partial responses are defined by the classical and modified target polynomials, while the multilevel encoding/modulation schemes include: 1) Structured Set Partitions (SSP), 2) a set of conventional block codes with different error correcting capabilities, and 3) a variety of iterative decoding such as the List Trellis Decoder (LTD), the BCJR algorithm, and soft decoding of low-density parity check codes. The precoders are derived from the SSP's, and combined with conventional ECC encoders designed for error detection, or error correction, or both. A cascade of parallel ECC encoders, followed by an SSP precoder, increases the minimum Euclidean distance between different media code sequences of symbols, and as a result gives lower bit error rates after decoding.
摘要翻译： 预编码器及其对应的逻辑方案，以及使用预编码器及其方案以部分响应均衡和多级编码/调制方案生成用于数据存储信道的媒体码序列的方法。 部分响应由经典和修改的目标多项式定义，而多级编码/调制方案包括：1）结构化集合分区（SSP），2）具有不同纠错能力的一组常规块代码，以及3）各种 迭代解码，如列表格式解码器（LTD），BCJR算法和低密度奇偶校验码的软解码。 预编码器是从SSP派生的，并结合传统的ECC编码器设计用于错误检测或纠错，或两者兼有。 并行ECC编码器的级联，随后是SSP预编码器，增加了不同媒体码序列之间的最小欧几里德距离，结果在解码后提供较低的误码率。
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公开(公告)号：US20080267200A1
公开(公告)日：2008-10-30
申请号：US11884520
申请日：2006-02-14
摘要： A router architecture based on combinatorial design. The router includes a plurality of input channels; a plurality of processors; a plurality of output channels; and buses interconnecting the input channels, processors, and output channels in a manner such that each pair of channels exists in only a pre-selected number of processor (pairwise balance property) and subsets of output channels, connected to processing elements. covers entire set of output channels (full covering property).
摘要翻译： 基于组合设计的路由器架构。 路由器包括多个输入通道; 多个处理器; 多个输出通道; 以及以这样的方式互连输入通道，处理器和输出通道的总线，使得每对通道仅存在于连接到处理元件的预选数量的处理器（成对均衡特性）和输出通道子集中。 覆盖整套输出通道（全覆盖属性）。
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8.发明申请STRUCTURED SET PARTITIONING AND MULTILEVEL CODING FOR PARTIAL RESPONSE CHANNELS 有权部分响应通道的结构设置分区和多编码公开(公告)号：US20070096950A1
公开(公告)日：2007-05-03
申请号：US11263128
申请日：2005-10-31
申请人： Xueshi Yang , Alexander Kuznetsov
发明人： Xueshi Yang , Alexander Kuznetsov
IPC分类号： H03M7/00
CPC分类号： G11B20/10009 , G11B20/10055
摘要： A method and apparatus for channel coding useful for recording channel and other communications applications. The proposed channel coding method is actualized via structured set partition (SSP) in conjunction with multilevel coding (MLC) and offers performance gains over conventional coding schemes with comparable complexity at the bit-error rate (BER) level as well as the sector failure rate (SFR) level.
摘要翻译： 一种用于记录信道和其他通信应用的信道编码的方法和装置。 提出的信道编码方法通过结构化分组（SSP）结合多级编码（MLC）实现，并且提供了比传统编码方案具有更高的比特错误率（BER）级别的复杂度以及扇区故障率 （SFR）水平。
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9.发明申请Combining spectral shaping with turbo coding in a channel coding system 审中-公开在频道编码系统中将频谱整形与turbo编码相结合公开(公告)号：US20060156171A1
公开(公告)日：2006-07-13
申请号：US11012820
申请日：2004-12-15
申请人： Alexander Kuznetsov , Erozan Kurtas
发明人： Alexander Kuznetsov , Erozan Kurtas
IPC分类号： H03M13/00
CPC分类号： H03M13/31 , G11B20/1866 , H03M13/2903 , H03M13/2963 , H03M13/2984 , H03M13/2987 , H03M13/6343
摘要： A method of combining spectral shaping with turbo coding in a channel coding system. The method comprises encoding user data with spectrally shaped encoding to provide a suppressed DC user data sector output. The method also comprises generating turbo coded redundant bits for the suppressed DC user data sector. The turbo coded redundant bits are interleaved with additive coding to provide a suppressed DC parity sector.
摘要翻译： 一种在频道编码系统中组合频谱整形与turbo编码的方法。 该方法包括用频谱形状编码对用户数据进行编码，以提供抑制的DC用户数据扇区输出。 该方法还包括为被抑制的DC用户数据扇区生成turbo编码的冗余比特。 turbo编码的冗余比特用加法编码进行交织以提供抑制的DC奇偶校验扇区。
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公开(公告)号：US20050289443A1
公开(公告)日：2005-12-29
申请号：US10879395
申请日：2004-06-29
申请人： Alexander Kuznetsov
发明人： Alexander Kuznetsov
CPC分类号： H03M5/145 , G11B20/1426 , G11B2020/1457
摘要： A method of additive encoding of data words includes receiving a plurality of data words, and searching a trellis representation of additive code words to identify a path in the trellis representing a sequence of patterns to be used to encode the data words. The trellis representation is of all possible combinations of matching patterns in a sequence of additive code words. The trellis representation of the additive code words is searched to identify a sequence of flags representing the sequence of patterns to be used to encode the data words.
摘要翻译： 数据字的加法编码的方法包括接收多个数据字，以及搜索加法码字的网格表示以识别代表要用于编码数据字的模式序列的网格中的路径。 网格表示是加法码字序列中匹配模式的所有可能组合。 搜索加法码字的网格表示以识别表示要用于对数据字进行编码的模式序列的标志序列。
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