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71. 发明授权

US08473824B1 Quasi-cyclic low-density parity-check (QC-LDPC) encoder 有权
标题翻译：准循环低密度奇偶校验（QC-LDPC）编码器
公开(公告)号：US08473824B1
公开(公告)日：2013-06-25
申请号：US12553584
申请日：2009-09-03
申请人： Panu Chaichanavong , Gregory Burd
发明人： Panu Chaichanavong , Gregory Burd
IPC分类号： H03M13/00
CPC分类号： H03M13/1182 , H03M13/033 , H03M13/1102 , H03M13/1148 , H03M13/116 , H03M13/15 , H03M13/616
摘要： Methods and systems are disclosed herein for generating parity information for using information in a low-density parity check (LDPC) encoder. A quasi-cyclic LDPC generator matrix K can be generated based on the non-invertible parity-check matrix H. Parity information can be generated by the LDPC encoder based at least in part on the user information, the non-invertible parity check matrix H, and the quasi-cyclic LDPC generator matrix K.
摘要翻译：本文公开了用于生成用于在低密度奇偶校验（LDPC）编码器中使用信息的奇偶校验信息的方法和系统。可以基于非可逆奇偶校验矩阵H来生成准循环LDPC生成矩阵K.奇偶校验信息可以由LDPC编码器至少部分地基于用户信息，不可逆奇偶校验矩阵H ，以及准循环LDPC发生器矩阵K.

72. 发明申请

US20120278686A1 SYSTEMS AND METHODS FOR ACHIEVING HIGHER CODING RATE USING PARITY INTERLEAVING 有权
标题翻译：使用奇偶校验交互实现更高编码率的系统和方法
公开(公告)号：US20120278686A1
公开(公告)日：2012-11-01
申请号：US13536522
申请日：2012-06-28
申请人： Heng Tang , Gregory Burd , Zining Wu , Panu Chaichanavong
发明人： Heng Tang , Gregory Burd , Zining Wu , Panu Chaichanavong
IPC分类号： H03M13/27 , G06F11/10
CPC分类号： G11B20/1423 , H03M5/145
摘要： The disclosed technology provides systems and methods for encoding data based on a run-length-limited code and an error correction code to provide codewords. The codewords include RLL-encoded data that are produced based on the RLL code, and parity information that are produced based on the error correction code. The parity information is interleaved among the RLL-encoded data. In one embodiment, the codeword is produced by separately producing the RLL-encoded data and the parity information, and interleaving the parity information among the RLL-encoded data. In one embodiment, the codeword is produced by producing the RLL-encoded data, and using erasure decoding to compute the parity information.
摘要翻译：所公开的技术提供了基于游程长度限制代码和纠错码来编码数据以提供码字的系统和方法。码字包括基于RLL码产生的RLL编码数据和基于纠错码产生的奇偶校验信息。奇偶校验信息在RLL编码数据之间进行交织。在一个实施例中，通过分别产生RLL编码数据和奇偶校验信息，以及在RLL编码数据之间交织奇偶校验信息来产生码字。在一个实施例中，通过产生RLL编码数据并使用擦除解码来计算奇偶校验信息来产生码字。

73. 发明授权

US08255765B1 Embedded parity coding for data storage 有权
标题翻译：用于数据存储的嵌入式奇偶编码
公开(公告)号：US08255765B1
公开(公告)日：2012-08-28
申请号：US11827213
申请日：2007-07-11
申请人： Engling Yeo , Eugene Pan , Henri Sutioso , Jun Xu , Shaohua Yang , Panu Chaichanavong , Gregory Burd , Zining Wu
发明人： Engling Yeo , Eugene Pan , Henri Sutioso , Jun Xu , Shaohua Yang , Panu Chaichanavong , Gregory Burd , Zining Wu
IPC分类号： H03M13/00
CPC分类号： H03M13/6362 , H03M5/145 , H03M13/1128 , H03M13/116 , H03M13/1515 , H03M13/2906 , H03M13/2915 , H03M13/31 , H03M13/6343
摘要： A low-density parity check (LDPC) decoder comprises a decoded data stream generator that generates a decoded data stream based on a received data stream and a set of matrix-based codewords. The matrix-based codewords form a LDPC parity check matrix H. A decoder control module at least one of prewrites or replaces a selected portion of at least one of the plurality of codewords with zeros prior to generation of the decoded data stream.
摘要翻译：低密度奇偶校验（LDPC）解码器包括基于接收到的数据流和基于矩阵的码字集合来生成解码数据流的解码数据流生成器。基于矩阵的码字形成LDPC奇偶校验矩阵H.解码器控制模块在生成解码的数据流之前用零预写或替换多个码字中的至少一个码字的选定部分中的至少一个。

74. 发明授权

US08219868B1 Quasi-cyclic low-density parity-check (QC-LDPC) encoder 有权
标题翻译：准循环低密度奇偶校验（QC-LDPC）编码器
公开(公告)号：US08219868B1
公开(公告)日：2012-07-10
申请号：US12277118
申请日：2008-11-24
申请人： Panu Chaichanavong , Gregory Burd
发明人： Panu Chaichanavong , Gregory Burd
IPC分类号： G08C25/02 , H04L1/18
CPC分类号： H03M13/611 , H03M13/116
摘要： Systems and methods are provided for a quasi-cyclic low-density parity check (QC-LDPC) encoders that have reduced memory requirements. In some embodiments, the LDPC encoder may store a quasi-cyclic parity seed matrix instead of a full code generator matrix. The LDPC encoder may receive a plurality of user symbols and compute a parity seed vector based at least in part on the received user symbols. The LDPC encoder may then use the quasi-cyclic parity seed matrix and the parity seed vector to generate a plurality of parity symbols for the user symbols. In some embodiments, the LDPC encoder may generate a full code generator matrix from a quasi-cyclic parity seed matrix instead of storing the full code generator matrix.
摘要翻译：为具有减少存储器要求的准循环低密度奇偶校验（QC-LDPC）编码器提供了系统和方法。在一些实施例中，LDPC编码器可以存储准循环奇偶校验种子矩阵而不是全码生成矩阵。 LDPC编码器可以至少部分地基于所接收的用户符号来接收多个用户符号并计算奇偶种子向量。然后，LDPC编码器可以使用准循环奇偶校验种子矩阵和奇偶种子向量来生成用于用户符号的多个奇偶校验符号。在一些实施例中，LDPC编码器可以从准循环奇偶种子矩阵生成全码生成矩阵，而不是存储全码生成矩阵。

75. 发明授权

US08156400B1 Embedded parity coding for data storage 有权
标题翻译：用于数据存储的嵌入式奇偶编码
公开(公告)号：US08156400B1
公开(公告)日：2012-04-10
申请号：US11827339
申请日：2007-07-11
申请人： Engling Yeo , Eugene Pan , Henri Sutioso , Jun Xu , Shaohua Yang , Panu Chaichanavong , Gregory Burd , Zining Wu
发明人： Engling Yeo , Eugene Pan , Henri Sutioso , Jun Xu , Shaohua Yang , Panu Chaichanavong , Gregory Burd , Zining Wu
IPC分类号： H03M13/00
CPC分类号： H03M13/6362 , H03M5/145 , H03M13/1128 , H03M13/116 , H03M13/1515 , H03M13/2906 , H03M13/2915 , H03M13/31 , H03M13/6343
摘要： A decoder memory system comprises a first memory comprising at least a portion of a parity check matrix H. A second memory receives the portion from the first memory and that is associated with a previous decoding iteration. A third memory communicates with the first memory, receives the parity check matrix H and is associated with a current decoding iteration. A fourth memory comprises likelihood ratios. A control module generates a LDPC decoded signal based on the parity check matrix H, the previous decoded iteration and the likelihood ratios.
摘要翻译：解码器存储器系统包括包括奇偶校验矩阵H的至少一部分的第一存储器。第二存储器接收来自第一存储器的部分，并且与先前的解码迭代相关联。第三存储器与第一存储器通信，接收奇偶校验矩阵H并与当前解码迭代相关联。第四存储器包括似然比。控制模块基于奇偶校验矩阵H，先前的解码迭代和似然比来生成LDPC解码信号。

76. 发明授权

US08140943B1 Parity insertion for inner architecture 有权
标题翻译：内部架构的奇偶校验插入
公开(公告)号：US08140943B1
公开(公告)日：2012-03-20
申请号：US13089733
申请日：2011-04-19
申请人： Zining Wu , Panu Chaichanavong , Gregory Burd
发明人： Zining Wu , Panu Chaichanavong , Gregory Burd
IPC分类号： G11C29/00
CPC分类号： H03M13/2945 , G11B20/1426 , G11B20/1833 , G11B2020/1222 , G11B2020/1836 , G11B2020/185 , G11B2020/1853 , G11B2020/1856 , G11B2220/2516 , G11B2220/2562 , H03M5/145 , H03M13/2906 , H03M13/31
摘要： A coding system for digital data. The coding system includes a constrained encoder module configured to generate encoded data based on a first constrained code; a bit insertion module configured to insert at least one bit location in the encoded data; and an inner encoding module configured to (i) generate inner-code parity bits based on the encoded data, and (ii) program the inner-code parity bits into the at least one bit location.
摘要翻译：数字数据编码系统。编码系统包括被配置为基于第一约束码产生编码数据的约束编码器模块; 配置成在编码数据中插入至少一个位位置的位插入模块; 以及内部编码模块，其被配置为（i）基于所述编码数据生成内部码奇偶校验位，以及（ii）将所述内部码奇偶校验位编程到所述至少一个比特位置中。

77. 发明授权

US08028216B1 Embedded parity coding for data storage 有权
标题翻译：用于数据存储的嵌入式奇偶编码
公开(公告)号：US08028216B1
公开(公告)日：2011-09-27
申请号：US11809670
申请日：2007-06-01
申请人： Engling Yeo , Eugene Pan , Henri Sutioso , Jun Xu , Shaohua Yang , Panu Chaichanavong , Gregory Burd , Zining Wu
发明人： Engling Yeo , Eugene Pan , Henri Sutioso , Jun Xu , Shaohua Yang , Panu Chaichanavong , Gregory Burd , Zining Wu
IPC分类号： H03M13/00
CPC分类号： H03M13/6362 , H03M5/145 , H03M13/1128 , H03M13/116 , H03M13/1515 , H03M13/2906 , H03M13/2915 , H03M13/31 , H03M13/6343
摘要： An encoder system includes a receive module that receives a data stream. A parity generation module generates parity bits based on the data stream and a tensor-product code. A parity insertion module combines the parity bits and the data stream to generate encoded bits.
摘要翻译：编码器系统包括接收数据流的接收模块。奇偶校验生成模块基于数据流和张量乘积码生成奇偶校验位。奇偶校验插入模块组合奇偶校验位和数据流以产生编码比特。

78. 发明授权

US07984367B1 Method for iterative decoding in the presence of burst errors 有权
标题翻译：存在突发错误的迭代解码方法
公开(公告)号：US07984367B1
公开(公告)日：2011-07-19
申请号：US11821231
申请日：2007-06-21
申请人： Panu Chaichanavong , Gregory Burd , Zining Wu
发明人： Panu Chaichanavong , Gregory Burd , Zining Wu
IPC分类号： H03M13/03
CPC分类号： H03M13/1111 , H03M13/17 , H03M13/2957 , H03M13/3715 , H03M13/3723 , H03M13/3972
摘要： Systems and methods for iterative decoding in the presence of burst errors are provided. The methods include acquiring extrinsic and channel information for received ECC-encoded data symbols, selecting a window including a subset of the received ECC-encoded symbols, determining the likelihood of a burst error in the window, and updating channel information for selected data symbols in the window. In one embodiment, burst error detection circuitry is used to determine the likelihood of a burst error in the window.
摘要翻译：提供了在存在突发错误的情况下进行迭代解码的系统和方法。所述方法包括获取接收到的ECC编码数据符号的外在信道信息，选择包括接收到的ECC编码符号的子集的窗口，确定窗口中突发错误的可能性，以及更新用于所选择的数据符号的信道信息窗户。在一个实施例中，突发错误检测电路用于确定窗口中突发错误的可能性。

79. 发明授权

US07667626B1 Enumerative DC-RLL constrained coding 失效
标题翻译：枚举DC-RLL约束编码
公开(公告)号：US07667626B1
公开(公告)日：2010-02-23
申请号：US12110921
申请日：2008-04-28
申请人： Panu Chaichanavong , Gregory Burd
发明人： Panu Chaichanavong , Gregory Burd
IPC分类号： H03M7/00
CPC分类号： H03M5/145
摘要： Systems and methods are provided for encoding and decoding constrained codes using an enumerative coding graph. The constrained code may contain run-length and DC level limits. The enumerative coding graph contains a series of states and each state has two branches that lead to other states. Each state in the enumerative coding graph is assigned a cardinality. Configuring the structure of the graph and the cardinalities associated with each state allow the encoder to generate a code that conforms to defined constraints.
摘要翻译：提供了使用枚举编码图对编码和解码约束码的系统和方法。受限代码可能包含游程长度和直流电平限制。枚举编码图包含一系列状态，每个状态有两个分支导致其他状态。枚举编码图中的每个状态都被分配一个基数。配置图形的结构和与每个状态相关联的基数允许编码器生成符合规定的约束的代码。

80. 发明授权

US08127209B1 QC-LDPC decoder with list-syndrome decoding 有权
标题翻译：具有列表综合解码的QC-LDPC解码器
公开(公告)号：US08127209B1
公开(公告)日：2012-02-28
申请号：US12180229
申请日：2008-07-25
申请人： Yifei Zhang , Hongwei Song , Gregory Burd
发明人： Yifei Zhang , Hongwei Song , Gregory Burd
IPC分类号： H03M13/00
CPC分类号： H03M13/1142 , H03M13/036 , H03M13/1128 , H03M13/116 , H03M13/451 , H03M13/458
摘要： A QC-LDPC decoding system employing a trapping set look-up table is provided. The QC-LDPC decoding system includes an iterative decoder that utilizes a message-passing algorithm to decode a received codeword. If the iterative decoder fails to produce a valid codeword, additional processing is performed to decode the received codeword. The additional processing includes the steps of computing the syndrome pattern of the received codeword, searching the look-up table for a trapping set class that is responsible for the iterative decoder's failure, retrieving from the look-up table a syndrome pattern and an error pattern of a member of the responsible trapping set class, and calculating the error pattern of the received codeword based on its syndrome pattern and the information retrieved from the look-up table. The received codeword is then corrected based on its error pattern.
摘要翻译：提供了采用陷阱集查询表的QC-LDPC解码系统。 QC-LDPC解码系统包括利用消息传递算法对接收到的码字进行解码的迭代解码器。如果迭代解码器不能产生有效码字，则执行附加处理以对接收到的码字进行解码。附加处理包括以下步骤：计算接收到的码字的校正子模式，在查找表中搜索负责迭代解码器失败的陷阱集类，从查找表中检索出校正子模式和错误模式负责陷阱集类的成员，并且基于其综合征模式和从查找表检索的信息来计算接收到的码字的错误模式。接收的码字然后根据其错误模式被校正。

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