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1. 发明申请

US20130094318A1 Energy Efficient Processor Having Heterogeneous Cache 有权
标题翻译：具有异构缓存的节能处理器
公开(公告)号：US20130094318A1
公开(公告)日：2013-04-18
申请号：US13271771
申请日：2011-10-12
申请人： Nam Sung Kim , Stark C. Draper
发明人： Nam Sung Kim , Stark C. Draper
IPC分类号： G11C5/14
CPC分类号： G06F12/0864 , G06F11/1064 , G06F2212/1028 , Y02D10/13
摘要： A heterogeneous cache structure provides several memory cells into different ways each associated with different minimum voltages below which the memory cells produce substantial state errors. Reduced voltage operation of the cache may be accompanied by deactivating different ways according to the voltage reduction. The differentiation between the memory cells in the ways may be implemented by devoting different amounts of integrated circuit area to each memory cell either by changing the size of the transistors comprising the memory cell or devoting additional transistors to each memory cell in the form of shared error correcting codes or backup memory cells.
摘要翻译：异构缓存结构提供多个不同方式的多个存储器单元，每个存储单元与不同的最小电压相关联，低于该最小电压时，存储器单元产生实质的状态误差。缓存的降压操作可伴随着根据电压降低而不同的方式停用。存储器单元之间的区别可以通过将不同量的集成电路区域投入到每个存储器单元来实现，方法是通过改变包括存储器单元的晶体管的尺寸或者以共享误差的形式将额外的晶体管用于每个存储器单元更正代码或备份存储单元。

2. 发明申请

US20100058139A1 Method for constructing large-girth quasi-cyclic low-density parity-check codes 有权
标题翻译：构建大环准循环低密度奇偶校验码的方法
公开(公告)号：US20100058139A1
公开(公告)日：2010-03-04
申请号：US12199512
申请日：2008-08-27
申请人： Yige Wang , Jonathan S. Yedidia , Stark C. Draper
发明人： Yige Wang , Jonathan S. Yedidia , Stark C. Draper
IPC分类号： H03M13/11 , G06F11/10
CPC分类号： H03M13/116 , H03M13/033
摘要： A method constructs a code, wherein the code is a large-girth quasi-cyclic low-density parity-check code. A base matrix is selected for the code. A cost matrix corresponding to the base matrix is determined. A single element in the base is changed repeatedly maximize a reduction in cost. A parity check matrix is constructing for the code from the base matrix when the cost is zero, and an information block is encoded as a code word using the parity check matrix in an encoder.
摘要翻译：一种方法构建代码，其中代码是大环准循环低密度奇偶校验码。为代码选择基本矩阵。确定与基本矩阵相对应的成本矩阵。基地中的单个元素反复更改最大化成本降低。当成本为零时，从基本矩阵构建奇偶校验矩阵，并且使用编码器中的奇偶校验矩阵将信息块编码为码字。

3. 发明授权

US08103931B2 Method for constructing large-girth quasi-cyclic low-density parity-check codes 有权
标题翻译：构建大环准循环低密度奇偶校验码的方法
公开(公告)号：US08103931B2
公开(公告)日：2012-01-24
申请号：US12199512
申请日：2008-08-27
申请人： Yige Wang , Jonathan S. Yedidia , Stark C. Draper
发明人： Yige Wang , Jonathan S. Yedidia , Stark C. Draper
IPC分类号： H03M13/00
CPC分类号： H03M13/116 , H03M13/033
摘要： A method constructs a code, wherein the code is a large-girth quasi-cyclic low-density parity-check code. A base matrix is selected for the code. A cost matrix corresponding to the base matrix is determined. A single element in the base is changed repeatedly maximize a reduction in cost. A parity check matrix is constructing for the code from the base matrix when the cost is zero, and an information block is encoded as a code word using the parity check matrix in an encoder.
摘要翻译：一种方法构建代码，其中代码是大环准循环低密度奇偶校验码。为代码选择基本矩阵。确定与基本矩阵相对应的成本矩阵。基地中的单个元素反复更改最大化成本降低。当成本为零时，从基本矩阵构建奇偶校验矩阵，并且使用编码器中的奇偶校验矩阵将信息块编码为码字。

4. 发明授权

US07945845B2 Maximum likelihood decoding via mixed-integer adaptive linear programming 有权
标题翻译：通过混合整数自适应线性规划的最大似然解码
公开(公告)号：US07945845B2
公开(公告)日：2011-05-17
申请号：US11764938
申请日：2007-06-19
申请人： Stark C. Draper , Jonathan S. Yedidia
发明人： Stark C. Draper , Jonathan S. Yedidia
IPC分类号： H03M13/03
CPC分类号： H03M13/1105 , H03M13/37 , H03M13/451 , H03M13/458
摘要： A method and system decode a sequence of symbols received via a channel to a codeword of an error-correcting code. Log-likelihood ratios are determined from a sequence of symbols received via a channel. A set of constraints is initialized according to the log-likelihood ratios. An adaptive linear programming decoder is applied to the set of constraints and the log- likelihood ratios according to an error-correcting code to produce an estimate of the codeword and an updated set of constraints. If the estimate of the codeword is a non-integer pseudo codeword, further update the set of updated constraints with a set of integer constraints if the estimate of the codeword is the non-integer pseudo codeword, and proceeding with the applying step, and otherwise producing the estimate of the codeword as the final codeword.
摘要翻译：方法和系统将经由信道接收的符号序列解码为纠错码的码字。从通过信道接收的符号序列确定对数似然比。根据对数似然比初始化一组约束。根据纠错码将自适应线性规划解码器应用于约束集和对数似然比，以产生码字的估计和更新的约束集合。如果码字的估计是非整数伪码字，则如果码字的估计是非整数伪码字，并进行应用步骤，则用一组整数约束进一步更新更新的约束集合，否则产生码字的估计作为最终码字。

5. 发明申请

US20100192040A1 Multi-Stage Decoder for Error-Correcting Codes 有权
标题翻译：用于纠错码的多级解码器
公开(公告)号：US20100192040A1
公开(公告)日：2010-07-29
申请号：US12360832
申请日：2009-01-27
申请人： Jonathan S. Yedidia , Yige Wang , Stark C. Draper
发明人： Jonathan S. Yedidia , Yige Wang , Stark C. Draper
IPC分类号： H03M13/29 , G06F11/10
CPC分类号： H04L1/0053 , H03M13/1108 , H03M13/1111 , H03M13/112 , H03M13/1194 , H03M13/2957 , H03M13/3707 , H03M13/3761 , H03M13/45 , H03M13/6577 , H03M13/658 , H04L1/005
摘要： A multi-stage decoder decodes a block of symbols, received via a noisy channel, to a codeword. The decoder includes multiple sub-decoders connected sequentially, and wherein a next sub-decoder has a slower processing time and better word error rate than a previous sub-decoder, and wherein the next sub-decoder is only executed if the previous decoder fails to decode the block sequence of symbols, and a last sub-decoder is executed until a termination condition is reached.
摘要翻译：多级解码器将经由噪声信道接收到的符号块解码为码字。解码器包括顺序连接的多个子解码器，并且其中下一个子解码器具有比先前的子解码器更慢的处理时间和更好的字错误率，并且其中下一个子解码器仅在先前的解码器不能对符号的块序列进行解码，并且执行最后一个子解码器直到达到终止条件。

6. 发明申请

US20080235515A1 Pre-processing Biometric Parameters before Encoding and Decoding 有权
标题翻译：在编码和解码之前预处理生物特征参数
公开(公告)号：US20080235515A1
公开(公告)日：2008-09-25
申请号：US11928687
申请日：2007-10-30
申请人： Jonathan S. Yedidia , Stark C. Draper , Yagiz Sutcu , Anthony Vetro
发明人： Jonathan S. Yedidia , Stark C. Draper , Yagiz Sutcu , Anthony Vetro
IPC分类号： H04K1/00 , H04L9/00
CPC分类号： H04L9/3236 , G06K9/00073 , G06K9/0061 , H04L9/3231 , H04L2209/30 , H04L2209/805
摘要： Biometric parameters acquired from human faces, voices, fingerprints, and irises are used for user authentication and access control. Because the biometric parameters are continuous and vary from one reading to the next, syndrome codes are applied to determine biometric syndrome vectors. The biometric syndrome vectors can be stored securely, while tolerating an inherent variability of biometric data. The stored biometric syndrome vector is decoded during user authentication using biometric parameters acquired at that time. The syndrome codes can also be used to encrypt and decrypt data. The biometric parameters can be pre-processed to form a binary representation, in which the binary representation has a set of predetermined statistical properties enforced imposed by a set of binary logical conditions.
摘要翻译：从人脸，语音，指纹和虹膜获取的生物特征参数用于用户认证和访问控制。因为生物特征参数是连续的，并且从一个读数到下一个读数不同，所以应用校正子码来确定生物统计学综合征矢量。可以安全地存储生物特征综合征矢量，同时容忍生物特征数据的固有变异性。存储的生物统计量子载体在用户认证期间使用当时获取的生物特征参数进行解码。校正码也可用于加密和解密数据。生物特征参数可以被预处理以形成二进制表示，其中二进制表示具有由一组二进制逻辑条件强加的一组预定的统计特性。

7. 发明授权

US08407550B2 Method and system for decoding graph-based codes using message-passing with difference-map dynamics 有权
标题翻译：使用差分图动态消息传递来解码基于图形的代码的方法和系统
公开(公告)号：US08407550B2
公开(公告)日：2013-03-26
申请号：US12541810
申请日：2009-08-14
申请人： Jonathan S. Yedidia , Yige Wang , Stark C. Draper
发明人： Jonathan S. Yedidia , Yige Wang , Stark C. Draper
IPC分类号： G06F11/00
CPC分类号： G06F7/5057 , G06F7/5443 , H03M13/1111 , H03M13/658 , H04B10/6165 , H04L9/3218 , H04L2209/46 , H04L2209/50
摘要： A code to be decoded by message-passing is represented by a factor graph. The factor graph includes variable nodes indexed by i and constraint nodes indexed by a connected by edges for transferring messages mi→a outgoing from the variable nodes to the constraint nodes and messages ma→i incoming from the constraint nodes to the variable nodes. The messages mi→a are initialized based on beliefs bi of a received codeword. The messages ma→i are generated by overshooting the messages mi→a at the constraint nodes. The beliefs bi are updated at the variable nodes using the messages ma→i. The codeword is outputted if found, otherwise, the messages mi→a are updated using a correction for the overshooting.
摘要翻译：通过消息传递解码的代码由因子图表示。因子图包括由i索引的变量节点和由连接的边缘索引的约束节点，用于传送从变量节点传出的约束节点和从约束节点到变量节点的消息ma→i。基于所接收的码字的信念bi来初始化消息mi→a。消息ma→i是通过在约束节点超过消息mi→a生成的。使用消息ma→i在变量节点更新信念bi。如果找到，则输出码字，否则，使用用于过冲的校正来更新消息mi→a。

8. 发明授权

US08375218B2 Pre-processing biometric parameters before encoding and decoding 有权
标题翻译：在编码和解码之前预处理生物特征参数
公开(公告)号：US08375218B2
公开(公告)日：2013-02-12
申请号：US11928687
申请日：2007-10-30
申请人： Jonathan S. Yedidia , Stark C. Draper , Yagiz Sutcu , Anthony Vetro
发明人： Jonathan S. Yedidia , Stark C. Draper , Yagiz Sutcu , Anthony Vetro
IPC分类号： G06F21/00
CPC分类号： H04L9/3236 , G06K9/00073 , G06K9/0061 , H04L9/3231 , H04L2209/30 , H04L2209/805
摘要： Biometric parameters acquired from human faces, voices, fingerprints, and irises are used for user authentication and access control. Because the biometric parameters are continuous and vary from one reading to the next, syndrome codes are applied to determine biometric syndrome vectors. The biometric syndrome vectors can be stored securely, while tolerating an inherent variability of biometric data. The stored biometric syndrome vector is decoded during user authentication using biometric parameters acquired at that time. The syndrome codes can also be used to encrypt and decrypt data. The biometric parameters can be pre-processed to form a binary representation, in which the binary representation has a set of predetermined statistical properties enforced imposed by a set of binary logical conditions.
摘要翻译：从人脸，语音，指纹和虹膜获取的生物特征参数用于用户认证和访问控制。因为生物特征参数是连续的，并且从一个读数到下一个读数不同，所以应用校正子码来确定生物统计学综合征矢量。可以安全地存储生物特征综合征矢量，同时容忍生物特征数据的固有变异性。存储的生物统计量子载体在用户认证期间使用当时获取的生物特征参数进行解码。校正码也可用于加密和解密数据。生物特征参数可以被预处理以形成二进制表示，其中二进制表示具有由一组二进制逻辑条件强加的一组预定的统计特性。

9. 发明申请

US20080279281A1 Method and System for Compound Conditional Source Coding 审中-公开
标题翻译：复合条件源编码方法与系统
公开(公告)号：US20080279281A1
公开(公告)日：2008-11-13
申请号：US11745519
申请日：2007-05-08
申请人： Stark C. Draper , Emin Martinian
发明人： Stark C. Draper , Emin Martinian
IPC分类号： H04B1/66
CPC分类号： H03M7/30
摘要： Embodiments of the invention describe a compound conditional source coding method and system for communicating source data over a network. Length-n random uncompressed source data are drawn according to a distribution px(x), and serves as input data to an encoder. A set P of candidate side-information vectors is also input to the encoder. The encoder encodes the source data, utilizing the set of the candidate side-information vectors, to produce an encoded message. The message is transmitted to a decoder. The decoder decodes the received message to produce a source estimate, using selected side-information vector and an index of the selected side-information vector in the set of the candidate side-information vectors.
摘要翻译：本发明的实施例描述了一种用于通过网络传送源数据的复合条件源编码方法和系统。长度为n的随机未压缩源数据根据分布p x x（x）绘制，并且用作编码器的输入数据。候选侧信息向量的集合P也被输入到编码器。编码器利用候选侧信息向量集合对源数据进行编码，以产生编码消息。该消息被发送到解码器。解码器对所接收的消息进行解码以使用候选侧信息向量的集合中的所选侧信息向量和所选择的侧信息向量的索引来产生源估计。

10. 发明授权

US08687453B2 Energy efficient processor having heterogeneous cache 有权
标题翻译：具有异构缓存的节能处理器
公开(公告)号：US08687453B2
公开(公告)日：2014-04-01
申请号：US13271771
申请日：2011-10-12
申请人： Nam Sung Kim , Stark C. Draper
发明人： Nam Sung Kim , Stark C. Draper
IPC分类号： G11C5/14
CPC分类号： G06F12/0864 , G06F11/1064 , G06F2212/1028 , Y02D10/13
摘要： A heterogeneous cache structure provides several memory cells into different ways each associated with different minimum voltages below which the memory cells produce substantial state errors. Reduced voltage operation of the cache may be accompanied by deactivating different ways according to the voltage reduction. The differentiation between the memory cells in the ways may be implemented by devoting different amounts of integrated circuit area to each memory cell either by changing the size of the transistors comprising the memory cell or devoting additional transistors to each memory cell in the form of shared error correcting codes or backup memory cells.
摘要翻译：异构缓存结构提供多个不同方式的多个存储器单元，每个存储单元与不同的最小电压相关联，低于该最小电压时，存储器单元缓存的降压操作可伴随着根据电压降低而不同的方式停用。存储器单元之间的区别可以通过将不同量的集成电路区域投入到每个存储器单元来实现，方法是通过改变包括存储器单元的晶体管的尺寸或者以共享误差的形式将额外的晶体管用于每个存储器单元更正代码或备份存储单元。

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