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    • 22. 发明授权
    • Constellation adjustment based on detected encoding and encoding conversion for modem connections
    • 基于调制解调器连接的检测编码和编码转换的星座调整
    • US06687306B1
    • 2004-02-03
    • US09527008
    • 2000-03-16
    • Zhenyu WangJinguo Yu
    • Zhenyu WangJinguo Yu
    • H04B1404
    • H04B14/04H04L25/4927
    • A first transceiver transmits a set of test levels to a second transceiver through a communication channel with one or more types of companding laws. The second transceiver determines line encoding with, and conversion between, the companding laws present in the communication channel based on the received set of test signals. The set of test levels are signals having levels determined based on the difference between the normalized amplitude, vertex, or energy curves for the types of companding laws, with or without accounting for other sources of network distortion. Additional distortion from line characteristics, such as robbed-bit signaling (RBS) and/or line impairment, may be detected based on changes in encoding sample levels of transmitted test signals that are reconstructed by the second transceiver. The second transceiver may then transmit information to the first transceiver about the companding laws and other sources of distortion present in the network. The second transceiver employs a method of constellation adjustment to correct for distortion resulting from line encoding, encoding conversion, RBS and other line impairments. For a given, detected encoding conversion during the training phase, two constellations are employed, one for the first transceiver and one for the second transceiver. For constellation adjustment, each transceiver first detects encoding, encoding conversion, RBS, and other line impairments using a set of PCM test levels during their respective training phases. The second transceiver then adjusts its transmit constellation for communication with the first transceiver based on the detected encoding, encoding conversion, RBS, and other line impairments.
    • 第一收发器通过具有一种或多种类型的压扩定律的通信信道将一组测试级别发送到第二收发器。 第二收发机基于所接收的一组测试信号来确定在通信信道中存在的压扩法的线路编码和转换。 测试级别的集合是具有基于压缩法的类型的归一化幅度,顶点或能量曲线之间的差确定的等级的信号,具有或不考虑其他网络失真源。 可以基于由第二收发器重建的发送的测试信号的编码采样电平的变化来检测来自诸如抢占信令(RBS)和/或线路损害的线路特性的附加失真。 然后,第二收发器可以向第一收发器发送关于网络中存在的压扩定律和其它失真源的信息。 第二收发器采用星座调整的方法来校正由线编码,编码转换,RBS和其他线路损伤引起的失真。 对于在训练阶段期间的给定的检测到的编码转换,采用两个星座,一个用于第一收发器,一个用于第二收发器。 对于星座调整,每个收发器首先在各自的训练阶段使用一组PCM测试级别来检测编码,编码转换,RBS和其他线路损伤。 然后,第二收发器基于检测到的编码,编码转换,RBS和其他线路损伤来调整其与第一收发器通信的发送星座。
    • 23. 发明授权
    • Method and apparatus for implementing K-shortest paths algorithm in the case of existing multiple edges between adjacent nodes
    • 在相邻节点之间存在多个边缘的情况下实现K-最短路径算法的方法和装置
    • US08467315B2
    • 2013-06-18
    • US13257609
    • 2009-09-02
    • Dajiang WangZhenyu Wang
    • Dajiang WangZhenyu Wang
    • H04L12/28
    • H04L45/24H04L45/00H04L45/12
    • The present invention discloses a method and apparatus for implementing a K-shortest paths algorithm in a condition of multiple sides between adjacent nodes. The implementing method comprises: recording original topology information into a topology structure; adding one virtual node into each of the original sides other than the one with the shortest weight between the two nodes respectively to divide each of the original sides except for the original side with the shortest weight into two new sides, a weight of the new side being obtained by splitting a weight of the original edge where the new side locates; according to new topology information after adding virtual nodes, calculating K-shortest paths between designated nodes; and checking each path in the calculated K-shortest paths in sequence: reinstituting hops which belong to virtual nodes and new sides in each path into the original topology information recoded in said topology structure.
    • 本发明公开了一种在相邻节点之间的多边条件下实现K-最短路径算法的方法和装置。 实现方法包括:将原始拓扑信息记录到拓扑结构中; 在两个节点之间的最小权重之外的每个原始侧面中分别添加一个虚拟节点,以将最短权重的原始侧面之外的每个原始侧划分成两个新的边,新边的权重 通过分割新侧所在的原始边缘的重量来获得; 根据添加虚拟节点后的新拓扑信息,计算指定节点之间的K-最短路径; 并且按顺序检查所计算的K个最短路径中的每个路径:将属于每个路径中的虚拟节点和新侧的跳再次重建为在所述拓扑结构中重新编码的原始拓扑信息。
    • 24. 发明申请
    • Method for Calculating Interlayer Path
    • 层间路径计算方法
    • US20120140762A1
    • 2012-06-07
    • US13390224
    • 2010-04-28
    • Dajiang WangZhenyu Wang
    • Dajiang WangZhenyu Wang
    • H04L12/28
    • H04L45/42H04L45/04H04L45/50
    • In order to achieve the discovery and calculation of interlayer paths, a method for calculating an interlayer path is proposed by the present invention, comprising: a label switch router (LSR) of a layer selecting a path calculation element (PCE) of the layer according to the received discovery information of each PCE and sending thereto a path calculation request for the LSR, wherein the above discovery information comprises: indication information and interlayer information, with the indication information indicating whether the PCE can be used as a default interlayer path calculation element of the layer, and the interlayer information indicating a layer where the PCE is located and an adjacent layer thereof; when a path of the LSR is disconnected, selecting based on the interlayer information a path calculation element (PCE) of the next layer and sending thereto a path calculation request for the disconnected portion of the path until the path is connected; and replying a path calculation result to the PCE of the layer.
    • 为了实现层间路径的发现和计算,本发明提出了一种用于计算层间路径的方法,包括:选择层的路径计算元素(PCE)的层的标签交换路由器(LSR),根据 对于所接收到的每个PCE的发现信息,并向其发送LSR的路径计算请求,其中上述发现信息包括:指示信息和层间信息,其中指示信息指示PCE是否可以用作默认层间路径计算元素 以及指示PCE所在的层的层间信息及其相邻层; 当LSR的路径断开时,基于层间信息选择下一层的路径计算单元(PCE),并向其发送路径的断开部分的路径计算请求,直到路径连接为止; 并将路径计算结果应答到该层的PCE。
    • 26. 发明申请
    • SYSTEM AND METHOD FOR IMPLEMENTING AN AUTOMATIC DISCOVERY FUNCTION IN A DWDM NETWORK
    • 在DWDM网络中实现自动发现功能的系统和方法
    • US20110002688A1
    • 2011-01-06
    • US12865955
    • 2008-02-04
    • Zhihong KangZhenyu Wang
    • Zhihong KangZhenyu Wang
    • H04B10/08
    • H04J14/0227H04J14/0246H04J14/025H04J14/0279H04L41/04H04Q11/0062H04Q2011/0069H04Q2011/0079
    • A system and method for implementing an automatic discovery function in a DWDM network are provided, wherein the system includes: an optical supervisory channel (OSC) being a bi-directional physical channel, configured to transmit information through multiplexing/de-multiplexing a wavelength independent of a master optical channel with the master optical channel; a first ASON control unit, being located in a first node, configured to interact with a second ASON control unit in an adjacent second node through the OSC channel so as to obtain the information of the second ASON control unit; and the second ASON control unit, being located in the second node, configured to interact with the first ASON control unit in the adjacent first node through the OSC channel so as to obtain the information of the first ASON control unit. Thereby, using the method and system of the present invention, the automatic discovery function can be implemented through the OSC channel transmission mechanism.
    • 提供了一种在DWDM网络中实现自动发现功能的系统和方法,其中系统包括:作为双向物理信道的光监控信道(OSC),被配置为通过多路复用/解复用波长独立 具有主光通道的主光通道; 第一ASON控制单元,位于第一节点中,被配置为通过OSC信道与相邻第二节点中的第二ASON控制单元进行交互,以获得第二ASON控制单元的信息; 并且位于第二节点中的第二ASON控制单元被配置为通过OSC信道与相邻第一节点中的第一ASON控制单元交互,以便获得第一ASON控制单元的信息。 由此,利用本发明的方法和系统,可以通过OSC信道传输机制实现自动发现功能。
    • 27. 发明申请
    • Training-while-working data communications
    • 培训同时工作的数据通信
    • US20070077953A1
    • 2007-04-05
    • US11633373
    • 2006-12-04
    • Zhenyu Wang
    • Zhenyu Wang
    • H04B7/00H04Q7/20
    • H04L25/03019H04L1/0002H04L5/1446H04L2025/03745
    • A data communication transceiver, such as a PCM or xDSL modem, is operable in a training-while-working mode in which it both trains and communicates user data. In some embodiments, upon initiation of a data communication session, the transceiver operates in a startup training mode in which partial training occurs that is sufficient to enable low rate data communication; the transceiver then enters the training-while-working mode in which it communicates user data and completes training. When training is completed, the transceiver enters a data mode in which it communicates user data but does not train. In some embodiments, if in the data mode conditions arise requiring retraining or making retraining desirable, the transceiver enters the training-while-working mode and retrains while continuing to communicate user data.
    • 诸如PCM或xDSL调制解调器的数据通信收发器可以在训练同时工作的模式中操作,其中它训练和传送用户数据。 在一些实施例中,在数据通信会话开始时,收发器以启动训练模式工作,其中出现部分训练足以实现低速率数据通信; 然后收发器进入其中传达用户数据并完成训练的同时工作模式。 训练完成后,收发器进入数据模式,在该模式下,用户数据进行通信,但不进行训练。 在一些实施例中,如果在数据模式中出现需要再训练或需要再培训的条件,则收发器进入同步工作模式并在继续传送用户数据的同时继续训练。
    • 28. 发明授权
    • Constellation design for modem receiver
    • 调制解调器接收器的星座设计
    • US07076003B1
    • 2006-07-11
    • US09324304
    • 1999-06-02
    • Zhenyu Wang
    • Zhenyu Wang
    • H04L25/06
    • H04L25/4927
    • A method of forming a constellation design, and a receiver having both a processor that generates the constellation design and having a comparator. The particular constellation design described herein reduces errors resulting from a noisy communication channel. The generated constellation design includes a minimum threshold and a maximum threshold representing a variable range for each of a plurality of possible message levels. The constellation design accounts for the interrelationship between signal strength and noise in the communication channel. The comparator identifies the transmitted message by comparing the received signal with the generated constellation design.
    • 一种形成星座图设计的方法,以及具有生成星座设计并具有比较器的处理器的接收机。 本文描述的特定星座设计减少了由噪声通信信道导致的错误。 所生成的星座图设计包括表示多个可能消息级别中的每一个的可变范围的最小阈值和最大阈值。 星座设计考虑了通信信道中信号强度和噪声之间的相互关系。 比较器通过将接收到的信号与所生成的星座设计进行比较来识别所发送的消息。
    • 30. 发明授权
    • Method for calculating interlayer path
    • 层间路径计算方法
    • US08670328B2
    • 2014-03-11
    • US13390224
    • 2010-04-28
    • Dajiang WangZhenyu Wang
    • Dajiang WangZhenyu Wang
    • H04L12/28H04J3/22
    • H04L45/42H04L45/04H04L45/50
    • In order to achieve the discovery and calculation of interlayer paths, a method for calculating an interlayer path is proposed by the present invention, comprising: a label switch router (LSR) of a layer selecting a path calculation element (PCE) of the layer according to the received discovery information of each PCE and sending thereto a path calculation request for the LSR, wherein the above discovery information comprises: indication information and interlayer information, with the indication information indicating whether the PCE can be used as a default interlayer path calculation element of the layer, and the interlayer information indicating a layer where the PCE is located and an adjacent layer thereof; when a path of the LSR is disconnected, selecting based on the interlayer information a path calculation element (PCE) of the next layer and sending thereto a path calculation request for the disconnected portion of the path until the path is connected; and replying a path calculation result to the PCE of the layer.
    • 为了实现层间路径的发现和计算,本发明提出了一种用于计算层间路径的方法,包括:选择层的路径计算元素(PCE)的层的标签交换路由器(LSR),根据 对于所接收到的每个PCE的发现信息,并向其发送LSR的路径计算请求,其中上述发现信息包括:指示信息和层间信息,其中指示信息指示PCE是否可以用作默认层间路径计算元素 以及指示PCE所在的层的层间信息及其相邻层; 当LSR的路径断开时,基于层间信息选择下一层的路径计算单元(PCE),并向其发送路径的断开部分的路径计算请求,直到路径连接为止; 并将路径计算结果应答到该层的PCE。