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公开(公告)号：US06826719B2
公开(公告)日：2004-11-30
申请号：US10681655
申请日：2003-10-08
IPC分类号： G06F1100
CPC分类号： H04J13/00 , H04J3/0605 , H04L7/048
摘要： A telecommunications system and method which includes a transmitter, a first code generator for generating a noise code and a second code generator for generating a string-based code, wherein data which is transmitted by the transmitter is coded by the first and second code generators before transmission. One of the code generators preferably comprises a pseudorandom noise generator, and the other code generator preferably comprises a cyclic redundancy checking coder for assisting in deskewing of data. The telecommunications system allows the transmitter to dynamically request additional bandwidth from the telecommunications provider in order to efficiently transmit data. The present telecommunications system also substantially reduces skew experienced between the transmitter and the receiver.
摘要翻译： 一种电信系统和方法，包括发射机，用于产生噪声码的第一码发生器和用于生成基于串的码的第二码发生器，其中由发射机发射的数据由第一和第二码发生器在前 传输。 代码生成器之一优选地包括伪随机噪声发生器，并且另一代码生成器优选地包括用于辅助数据的偏斜校正的循环冗余校验编码器。 电信系统允许发射机动态地请求来自电信提供商的附加带宽以有效地传输数据。 目前的电信系统还大大减少了发射机和接收机之间经历的偏斜。
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公开(公告)号：US06665825B1
公开(公告)日：2003-12-16
申请号：US09707145
申请日：2000-11-06
IPC分类号： G11B500
CPC分类号： H04J13/00 , H04J3/0605 , H04L7/048
摘要： A telecommunications system and method which includes a transmitter, a first code generator for generating a noise code and a second code generator for generating a string-based code, wherein data which is transmitted by the transmitter is coded by the first and second code generators before transmission. One of the code generators preferably comprises a pseudorandom noise generator, and the other code generator preferably comprises a cyclic redundancy checking coder for assisting in deskewing of data. The telecommunications system allows the transmitter to dynamically request additional bandwidth from the telecommunications provider in order to efficiently transmit data. The present telecommunications system also substantially reduces skew experienced between the transmitter and the receiver.
摘要翻译： 一种电信系统和方法，包括发射机，用于产生噪声码的第一码发生器和用于生成基于串的码的第二码发生器，其中由发射机发射的数据由第一和第二码发生器在前 传输。 代码生成器之一优选地包括伪随机噪声发生器，并且另一代码生成器优选地包括用于辅助数据的偏斜校正的循环冗余校验编码器。 电信系统允许发射机动态地请求来自电信提供商的附加带宽以有效地传输数据。 目前的电信系统还大大减少了发射机和接收机之间经历的偏斜。
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公开(公告)号：US20110164672A1
公开(公告)日：2011-07-07
申请号：US12652390
申请日：2010-01-05
申请人： Hong Jiang , Kim N. Matthews , Zulfiquar Sayeed , Paul A. Wilford , Lesley J. Wu
发明人： Hong Jiang , Kim N. Matthews , Zulfiquar Sayeed , Paul A. Wilford , Lesley J. Wu
IPC分类号： H04B1/66
CPC分类号： H04J11/003 , H04N19/39
摘要： In one aspect, an orthogonal multiple description encoder comprises orthogonal multiple description generation circuitry configured to produce multiple descriptions of a given signal by processing the signal using respective ones of a plurality of orthogonal matrices. Each of the multiple descriptions is generated as a function of the signal and a corresponding one of the plurality of orthogonal matrices. Other aspects include an orthogonal multiple description decoder, orthogonal multiple description encoding and decoding methods, and associated computer program products.
摘要翻译： 一方面，正交多重描述编码器包括正交多描述生成电路，其被配置为通过使用多个正交矩阵中的相应矩阵处理信号来产生给定信号的多个描述。 多个描述中的每一个作为信号的函数和多个正交矩阵中的相应一个生成。 其他方面包括正交多重描述解码器，正交多重描述编码和解码方法以及相关联的计算机程序产品。
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4.发明授权
公开(公告)号：US5420754A
公开(公告)日：1995-05-30
申请号：US590246
申请日：1990-09-28
CPC分类号： H05K7/023 , H01L2224/16 , H01L2224/48091 , H01L2924/19107 , H05K1/144
摘要： A system is described for arraying multi-device processing nodes in a 3-dimensional computing architecture and for flexibly connecting their ports. The topology of each processing node is of a fixed and constant physical geometry. The nodes may comprise a digital signal processor chip, a static RAM, and a communications and network controller. The nodes are mounted on boards. Selective connection of ports of each board to ports of another adjacent board is effected by a routing and spacer element having internal routing paths.
摘要翻译： 描述了一种用于在三维计算架构中排列多设备处理节点并且用于灵活地连接其端口的系统。 每个处理节点的拓扑结构具有固定和恒定的物理几何。 节点可以包括数字信号处理器芯片，静态RAM以及通信和网络控制器。 节点安装在电路板上。 每个板的端口与另一相邻板的端口的选择性连接由具有内部路由路径的路由和间隔元件实现。
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公开(公告)号：US06445752B1
公开(公告)日：2002-09-03
申请号：US09248904
申请日：1999-02-12
IPC分类号： H04L2714
CPC分类号： H04L27/066 , H04L1/0045 , H04L2027/003 , H04L2027/0057 , H04L2027/0067
摘要： A phase tracker receives a signal component xn and forms a phase- and gain-corrected signal zn. In particular, the phase tracker performs a Hilbert transform of xn to produce a quadrature phase component yn to form the constellation defined by (xn, yn). Consequently, phase rotation and gain adjustment are combined into a linear transform of the constellation defined by (xn, yn). The linear transform zn=&agr;xn+&bgr;yn employs two coefficients &agr; and &bgr;. The coefficients &agr; and &bgr; of the linear transform are derived so as to provide an optimal solution according to minimum mean square error. Approximations to the coefficients &agr; and &bgr; of the linear transform may be iteratively determined with a stochastic gradient method. Advantages of employing the phase- and gain-corrected signal zn as an I-phase detection result of a demodulator include 1) the phase rotation and gain adjustment are combined into one operation, and 2) the a sine/cosine lookup table is not employed. Including both phase rotation and a gain adjustment may provide for better performance of the demodulator. In addition, these advantages may result in reduced circuit complexity and reduced added error.
摘要翻译： 相位跟踪器接收信号分量xn并且形成相位和增益校正信号zn。 特别地，相位跟踪器执行xn的希尔伯特变换以产生正交相位分量yn，以形成由（xn，yn）定义的星座。 因此，相位旋转和增益调整被组合成由（xn，yn）定义的星座的线性变换。 线性变换zn = alphaxn + betayn采用两个系数α和β。 导出线性变换的系数α和β，以便根据最小均方误差提供最优解。 可以用随机梯度法迭代确定线性变换的系数α和β的近似值。 采用相位和增益校正信号zn作为解调器的I相检测结果的优点包括1）将相位旋转和增益调整组合成一个操作，2）不使用正弦/余弦查找表 。 包括相位旋转和增益调整都可以提供更好的解调器性能。 此外，这些优点可能导致电路复杂度降低和附加误差降低。
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