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1. 发明申请

US20060123241A1 Biometric based user authentication and data encryption 有权
公开(公告)号：US20060123241A1
公开(公告)日：2006-06-08
申请号：US11218261
申请日：2005-09-01
申请人： Emin Martinian , Anthony Vetro , Sergey Yekhanin , Jonathan Yedidia
发明人： Emin Martinian , Anthony Vetro , Sergey Yekhanin , Jonathan Yedidia
IPC分类号： H04K1/00
CPC分类号： H04L9/0894 , G07C9/00158 , H04L9/0866 , H04L9/3231
摘要： First biometric parameters are acquired from a user. Input data are encrypted according to the biometric parameters to produce ciphertext. The biometric parameters are encoded using a syndrome encoder to produce a syndrome code. The ciphertext and the syndrome code are associated with each other and stored in a computer readable media so that only the same user can subsequently decrypt the cipher text.

2. 发明申请

US20070174633A1 Biometric Based User Authentication and Data Encryption 有权
标题翻译：基于生物特征的用户认证和数据加密
公开(公告)号：US20070174633A1
公开(公告)日：2007-07-26
申请号：US11564638
申请日：2006-11-29
申请人： Stark Draper , Ashish Khisti , Emin Martinian , Anthony Vetro , Jonathan Yedidia
发明人： Stark Draper , Ashish Khisti , Emin Martinian , Anthony Vetro , Jonathan Yedidia
IPC分类号： H04L9/00 , H04K1/00
CPC分类号： G06K9/00885 , G06K9/00073 , H04L9/3231 , H04L9/3236
摘要： Biometric parameters acquired from human forces, 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.
摘要翻译：从人力，语音，指纹和鸢尾获得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。

3. 发明授权

US07372393B2 Method and system for determining unwrapped phases from noisy two-dimensional wrapped-phase images 有权
公开(公告)号：US07372393B2
公开(公告)日：2008-05-13
申请号：US11482491
申请日：2006-07-07
申请人： Jonathan Yedidia , Ali Azarbayejani , Emin Martinian , Ying-Zong Huang
发明人： Jonathan Yedidia , Ali Azarbayejani , Emin Martinian , Ying-Zong Huang
IPC分类号： G01S13/90
CPC分类号： G01S13/9035
摘要： A method converts an input image of noisy wrapped phases to an output image of absolute unwrapped phases. The noisy wrapped phases in the input image are represented as a set of re-wrapped phases and a set of phase shifts. The set of re-wrapped phases are partitioned into a first group and a second group. Integer differences between the phase shifts are optimized while holding the re-wrapped phases fixed. Then, the first group of re-wrapped phases are optimized, while holding the integer differences between the phase shifts, and the second group of re-wrapped phases fixed. The integer differences between the phase shifts are optimized again, while holding the re-wrapped phases fixed. Then, the second group of re-wrapped phases are optimized, while holding the integer differences between the phase shifts, and the first group of re-wrapped phases fixed. The optimizing steps are repeated until the re-wrapped phase converge. Then, the converged re-wrapped phases and integer differences between the phase shifts are output as an output image of absolute unwrapped phases.

4. 发明申请

US20080007450A1 Method and system for determining unwrapped phases from noisy two-dimensional wrapped-phase images 有权
标题翻译：用于从噪声二维包裹相图像确定展开相位的方法和系统
公开(公告)号：US20080007450A1
公开(公告)日：2008-01-10
申请号：US11482491
申请日：2006-07-07
申请人： Jonathan Yedidia , Ali Azarbayejani , Emin Martinian , Ying-Zong Huang
发明人： Jonathan Yedidia , Ali Azarbayejani , Emin Martinian , Ying-Zong Huang
IPC分类号： G01S13/90
CPC分类号： G01S13/9035
摘要： A method converts an input image of noisy wrapped phases to an output image of absolute unwrapped phases. The noisy wrapped phases in the input image are represented as a set of re-wrapped phases and a set of phase shifts. The set of re-wrapped phases are partitioned into a first group and a second group. Integer differences between the phase shifts are optimized while holding the re-wrapped phases fixed. Then, the first group of re-wrapped phases are optimized, while holding the integer differences between the phase shifts, and the second group of re-wrapped phases fixed. The integer differences between the phase shifts are optimized again, while holding the re-wrapped phases fixed. Then, the second group of re-wrapped phases are optimized, while holding the integer differences between the phase shifts, and the first group of re-wrapped phases fixed. The optimizing steps are repeated until the re-wrapped phase converge. Then, the converged re-wrapped phases and integer differences between the phase shifts are output as an output image of absolute unwrapped phases.
摘要翻译：一种方法将噪声包裹相位的输入图像转换为绝对展开相位的输出图像。输入图像中的噪声包裹相位被表示为一组再包裹相位和一组相移。重新包装阶段的集合被分成第一组和第二组。优化相移之间的整数差异，同时保持重新包装的相位固定。然后，优化了第一组重新包装阶段，同时保持相移之间的整数差，而第二组重新包装阶段固定。相位移之间的整数差再次被优化，同时保持重新包裹的相位固定。然后，对第二组重新缠绕阶段进行优化，同时保持相移之间的整数差，而第一组再缠绕相固定。重复优化步骤直到重新缠绕相位收敛。然后，将相移之间的收敛再包裹相位和整数差值输出为绝对展开相位的输出图像。

5. 发明申请

US20060045184A1 Coding correlated images using syndrome bits 有权
标题翻译：使用校正子位编码相关图像
公开(公告)号：US20060045184A1
公开(公告)日：2006-03-02
申请号：US10929050
申请日：2004-08-27
申请人： Anthony Vetro , Jonathan Yedidia
发明人： Anthony Vetro , Jonathan Yedidia
IPC分类号： H04N11/02 , H04N11/04 , H04N15/00 , H04N7/12 , H04N13/00 , H04B1/66
CPC分类号： H04N19/59 , H04N19/124 , H04N19/127 , H04N19/154 , H04N19/166 , H04N19/18 , H04N19/44 , H04N19/46 , H04N19/513 , H04N19/523 , H04N19/597 , H04N19/63
摘要： A method represents a correlated set of images. The correlation can be spatial or temporal. A lossy operation is applied to each image in the correlated set to generate a coarse image. The coarse image is encoded losslessly to yield an encoded coarse image. Each image is also represented by syndrome bits. The combination of the encoded coarse images and the syndrome bits represent the correlated set of images.
摘要翻译：一种方法表示一组相关的图像。相关性可以是空间或时间。对相关集合中的每个图像应用有损操作以生成粗略图像。粗略图像被无损编码以产生编码的粗略图像。每个图像也由校正子位表示。编码的粗略图像和校正子位的组合表示相关的图像集合。

6. 发明申请

US20060048038A1 Compressing signals using serially-concatenated accumulate codes 审中-公开
标题翻译：使用串行级联代码压缩信号
公开(公告)号：US20060048038A1
公开(公告)日：2006-03-02
申请号：US10928448
申请日：2004-08-27
申请人： Jonathan Yedidia , Anthony Vetro , Ashish Khisti , Dmitry Malioutov
发明人： Jonathan Yedidia , Anthony Vetro , Ashish Khisti , Dmitry Malioutov
IPC分类号： H03M13/03
CPC分类号： H03M7/30 , H03M13/00 , H03M13/03 , H03M13/1194 , H03M13/19 , H03M13/6312
摘要： A method compresses a set of correlated signals by first converting each signal to a sequence of integers, which are further organized as a set of bit-planes. This can be done by signal transformation and quantization. An inverse accumulator is applied to each bit-plane to produce a bit-plane of shifted bits, which are permuted according to a predetermined permutation to produce bit-planes of permuted bits. Each bit-plane of permuted bits is partitioned into a set of blocks of bits. Syndrome bits are generated for each block of bits according to a rate-adaptive base code. Subsequently, the syndrome bits can be decompressed in a decoder to recover the original correlated signals. For each bit-plane of the corresponding signal, a bit probability estimate is generated. Then, the bit-plane is reconstructed using the syndrome bits and the bit probability estimate. The sequence of integers corresponding to all of the bit-planes can then be reconstructed from the bit probability estimates, and the original signal can be recovered from the sequences of integers using an inverse quantization and inverse transform.
摘要翻译：一种方法通过首先将每个信号转换成整数序列来压缩一组相关信号，该整数序列进一步被组织为一组位平面。这可以通过信号变换和量化来完成。反向累加器被施加到每个位平面以产生位移位的位平面，它们根据预定的排列被排列以产生置换位的位平面。置换位的每个位平面被划分成一组位块。根据速率自适应基本码为每个位块产生综合位。随后，可以在解码器中解压缩校正子位以恢复原始的相关信号。对于相应信号的每个位平面，产生位概率估计。然后，使用校正子位和位概率估计来重构位平面。然后可以从比特概率估计中重构对应于所有比特平面的整数序列，并且可以使用逆量化和逆变换从整数序列中恢复原始信号。

7. 发明授权

US08595589B2 Quasi-cyclic low-density parity-check codes 有权
标题翻译：准循环低密度奇偶校验码
公开(公告)号：US08595589B2
公开(公告)日：2013-11-26
申请号：US13251180
申请日：2011-09-30
申请人： Jonathan Yedidia , Yige Wang
发明人： Jonathan Yedidia , Yige Wang
IPC分类号： H03M13/00
CPC分类号： H03M13/116 , H03M13/1154 , H03M13/1165
摘要： A system and a method for determining a quasi-cyclic (QC) low-density parity-check (LDPC) code, such that the QC LDPC code has no trapping sets are disclosed. A set of matrices representing a family of QC LDPC codes are acquired, wherein each QC LDPC code is a tail-biting spatially-coupled code of girth not less than eight, and wherein each column of each matrix in the set has a weight not less than four. Based on a trapping set pattern, a matrix from the set of matrices is selected such that the matrix represents the QC LDPC code with no trapping sets. The matrix can be stored into a memory.
摘要翻译：一种用于确定准循环（QC）低密度奇偶校验（LDPC）码的系统和方法，使得QC LDPC码没有捕获集合被公开。获取表示QC LDPC码族的一组矩阵，其中每个QC LDPC码是周长不小于8的尾巴空间耦合码，并且其中集合中的每个矩阵的每列具有不小于比四。基于捕获集合模式，选择来自矩阵集合的矩阵，使得矩阵表示没有陷阱集合的QC LDPC码。矩阵可以存储到存储器中。

8. 发明授权

US08499218B2 System and method for determining quasi-cyclic low-density parity-check codes having high girth 有权
标题翻译：用于确定具有高周长的准循环低密度奇偶校验码的系统和方法
公开(公告)号：US08499218B2
公开(公告)日：2013-07-30
申请号：US13251143
申请日：2011-09-30
申请人： Jonathan Yedidia , Stark Draper , Yige Wang
发明人： Jonathan Yedidia , Stark Draper , Yige Wang
IPC分类号： H03M13/00
CPC分类号： H03M13/1154 , H03M13/036 , H03M13/116 , H03M13/6527 , H03M13/6544
摘要： A method estimates parameters of 3-phase voltage signals to synchronize a power grid in a presence of a voltage unbalance by transforming the 3-phase voltage signals to αβ-reference signals using a Clarke transformation matrix, and estimating sinusoidal signals and corresponding quadrature signals of the αβ-reference signals using an extended Kalman filter, and determining a phase angle of a positive sequence based on a relationship of the phase angle to the estimated the sinusoidal signals.
摘要翻译：一种方法估计三相电压信号的参数以通过使用克拉克变换矩阵将三相电压信号转换为字母表参考信号来在电压不平衡的存在下同步电网，并且估计正弦信号和相应的正交信号使用扩展卡尔曼滤波器的字母表参考信号，以及基于相位角与估计的正弦信号的关系确定正序列的相位角。

9. 发明申请

US20130086456A1 System and Method for Determining Quasi-Cyclic Low-Density Parity-Check Codes Having High Girth 有权
标题翻译：用于确定具有高围圈的准循环低密度奇偶校验码的系统和方法
公开(公告)号：US20130086456A1
公开(公告)日：2013-04-04
申请号：US13251143
申请日：2011-09-30
申请人： Jonathan Yedidia , Stark Draper , Yige Wang
发明人： Jonathan Yedidia , Stark Draper , Yige Wang
IPC分类号： H03M13/05 , G06F11/10 , H03M13/07
CPC分类号： H03M13/1154 , H03M13/036 , H03M13/116 , H03M13/6527 , H03M13/6544
摘要： A system and a method determine a quasi-cyclic (QC) low-density parity-check (LDPC) code corresponding to a protograph and having a predetermined girth. At least several elements of the connectivity matrix representing the protograph are duplicated along at least one line of duplication to produce an inflated connectivity matrix, wherein values of at least several elements in the connectivity matrix form a pattern indicated by the predetermined girth. A hierarchical quasi-cyclic (HQC) LDPC code corresponding to the inflated connectivity matrix is determined and at least several elements of a matrix representing the HQC LDPC code are removed, such that the matrix is squashed along the line of duplication to produce the QC LDPC code.
摘要翻译：系统和方法确定对应于原图并具有预定周长的准循环（QC）低密度奇偶校验（LDPC）码。表示原型图的连接矩阵的至少几个元素沿着至少一行复制复制，以产生充气连接矩阵，其中，连通性矩阵中的至少几个元素的值形成由预定周长表示的图案。确定对应于充气连通性矩阵的分级准循环（HQC）LDPC码，并且去除表示HQC LDPC码的矩阵的至少几个元素，使得矩阵沿着复制线被压缩以产生QC LDPC 码。

10. 发明申请

US20110041033A1 Method and System for Decoding Graph-Based Codes Using Message-Passing with Difference-Map Dynamics 审中-公开
标题翻译：使用差分图动态消息传递来解码基于图的代码的方法和系统
公开(公告)号：US20110041033A1
公开(公告)日：2011-02-17
申请号：US12819396
申请日：2010-06-21
申请人： Jonathan Yedidia , Yige Wang , Stark Draper
发明人： Jonathan Yedidia , Yige Wang , Stark Draper
IPC分类号： H03M13/05 , G06F11/10
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。

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