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    • 2. 发明授权
    • System and method for dynamic video routing
    • 动态视频路由的系统和方法
    • US6108308A
    • 2000-08-22
    • US715214
    • 1996-09-17
    • Robert Alan FlavinPerwaiz NihalGeoffrey Hale PurdyNorbert George Vogl
    • Robert Alan FlavinPerwaiz NihalGeoffrey Hale PurdyNorbert George Vogl
    • H04L12/56G06F13/00
    • H04L45/02
    • One or more novel switch controllers are used in a network of network devices to connect and disconnect to one another. The switch can be any general purpose computer that has one or more communication links that connect one or more outputs of the computer to one or more of the network devices. In the computer, the network is represented by a directed graph that has two or more nodes and one or more directional edges connecting one or more pairs of the nodes. Each node in the pair represents a device that is connected/disconnected (represented by the edge of the directed graph.) One or more commands are associated with each edge that is used to connect the network devices represented by the nodes that the edge connects. When connecting the connected source to the connected sink, the computer executes a routing process that searches the directed graph to find the nodes associated with both the connected source and the connected sink and a path between the connected source and the connected sink through the directed graph (network). The computer executes a connection process that traverses the path and performs each command associated with each of the edges along the path so that the network devices operate to form a connection between the connected source and the connected sink along the path.
    • 在网络设备的网络中使用一个或多个新颖的交换机控制器来彼此连接和断开连接。 交换机可以是具有将计算机的一个或多个输出连接到一个或多个网络设备的一个或多个通信链路的任何通用计算机。 在计算机中,网络由具有两个或多个节点和连接一个或多个节点对的一个或多个方向边缘的有向图表示。 该对中的每个节点表示连接/断开的设备(由有向图的边缘表示)。一个或多个命令与用于连接由边缘连接的节点表示的网络设备的每个边缘相关联。 当将连接的源连接到连接的接收器时,计算机执行路由过程,其搜索有向图以找到与连接的源和连接的宿相关联的节点以及通过有向图连接的源和连接的宿之间的路径 (网络)。 计算机执行遍历路径的连接处理,并且执行与沿着路径的每个边缘相关联的每个命令,使得网络设备操作以沿着路径在连接的源和连接的宿端之间形成连接。
    • 3. 发明授权
    • Controlling the direction of broadband energy flow through components in
networking systems
    • 控制网络系统中组件的宽带能量流动方向
    • US5949301A
    • 1999-09-07
    • US975352
    • 1997-11-20
    • Edward Payson Clarke, Jr.Robert Alan FlavinGeoffrey Hale PurdyPerwaiz NihalNorbert George Vogl
    • Edward Payson Clarke, Jr.Robert Alan FlavinGeoffrey Hale PurdyPerwaiz NihalNorbert George Vogl
    • H04L12/28H04N7/10H01P1/10H01P5/04
    • H04L12/2801H04N7/102
    • The present invention is a switching system for a broadband network operating above five megahertz. The system connects to a first and second network through appropriate network connections. There are four components in the switching network. A first component with a first common connection, a first A branch, and a first B branch, the first common connection is connected to the first network terminal. A second component has a second common connector and a second A and B branch. The second common connector is connected to the second network terminal. The third component has a third A and B branch and one third common connector. The third A branch is connected to the first A branch. The third B branch is connected to the second B branch. The third common connector is connected to a first device terminal of a device. The fourth component has a fourth A and B branch and a fourth common connector. The fourth B branch is connected to the second B branch. The fourth common connector is connected to a second device terminal of the device. The fourth A branch is connected to the first A branch. One or more of the first, second, third and fourth components is chosen to be a switch or splitter and configured to change the flow of electromagnetic power through the first and second terminals of the device and the first and second network terminals.
    • 本发明是一种高于五兆赫的宽带网络的交换系统。 系统通过适当的网络连接连接到第一和第二网络。 交换网络中有四个组件。 具有第一公共连接的第一组件,第一A分支和第一B分支,第一公共连接连接到第一网络终端。 第二组件具有第二公共连接器和第二A和B分支。 第二公共连接器连接到第二网络终端。 第三个组件具有第三个A和B分支以及一个第三个公共连接器。 第三个A分支连接到第一个A分支。 第三个B分支连接到第二个B分支。 第三公共连接器连接到设备的第一设备终端。 第四组件具有第四个A和B分支以及第四个公共连接器。 第四个B分支连接到第二个B分支。 第四公共连接器连接到设备的第二设备终端。 第四个A分支连接到第一个A分支。 第一,第二,第三和第四组件中的一个或多个被选择为开关或分离器,并且被配置为改变通过设备的第一和第二端子以及第一和第二网络端子的电磁力的流动。
    • 4. 发明授权
    • Broadband any point to any point switch matrix
    • 宽带任何点到任何点开关矩阵
    • US06205138B1
    • 2001-03-20
    • US09066209
    • 1998-04-24
    • Perwaiz NihalRobert Alan FlavinThompson Baum VeseckyNorbert George VoglEdward Payson Clarke, Jr.Luis Rodriguez-CortesGeoffrey Hale Purdy
    • Perwaiz NihalRobert Alan FlavinThompson Baum VeseckyNorbert George VoglEdward Payson Clarke, Jr.Luis Rodriguez-CortesGeoffrey Hale Purdy
    • H04L1250
    • H04L49/101H04L49/201H04L49/351H04L49/40
    • This invention is a broadband matrix switch system and method of operation. The broadband matrix switch has N number of broadband inputs, each of the broadband inputs having one or more broadband signals. The matrix switch has M number of broadband outputs. There are N number of splitters. Each of the splitters has a splitter input connected to one of the broadband inputs. Each of the splitters has M number of splitter outputs that produce the splitter output signal. There are N times M number of node switches. Each node switch is uniquely connected to one of the splitter outputs. The node switches have a control input that allows the node switch to pass the respective splitter output signal upon receiving a close command at the control input and to terminate the respective splitter output signal with an input impedance upon receiving an open command at the control input. There are M number of combiners. Each combiner has a combiner output connected to one of the broadband outputs. Each combiner further having N number of combiner inputs. Each of the combiner inputs are connected to one and only one of the inputs through the respective splitter and node switch. The node switches terminate the combiner input with an output impedance upon receiving an open command. The matrix switch further has a controller that sends one or more open commands to selected node switches to connect one or more of the broadband inputs to one or more of the broadband outputs. The matrix switch has many uses in switching and monitoring and analyzing broadband networks, for example, cable TV networks.
    • 本发明是宽带矩阵切换系统及其操作方法。 宽带矩阵切换器具有N个宽带输入,每个宽带输入具有一个或多个宽带信号。 矩阵开关具有M个宽带输出。 有N个分割器。 每个分路器具有连接到一个宽带输入的分路器输入。 每个分路器具有M个分路器输出,产生分路器输出信号。 有N次M个节点交换机。 每个节点开关独特地连接到分路器输出之一。 节点开关具有控制输入,其允许节点开关在接收到控制输入端的关闭命令时通过相应的分离器输出信号,并且在控制输入端接收到打开命令时终止具有输入阻抗的相应分离器输出信号。 有M个组合器。 每个组合器具有连接到其中一个宽带输出的组合器输出。 每个组合器还具有N个组合器输入。 每个组合器输入通过相应的分离器和节点开关连接到一个且仅一个输入。 节点开关在接收到打开命令时终止具有输出阻抗的组合器输入。 矩阵开关还具有控制器,该控制器向所选择的节点开关发送一个或多个打开的命令,以将一个或多个宽带输入连接到一个或多个宽带输出。 矩阵开关在切换和监测和分析宽带网络方面有许多用途,例如有线电视网络。
    • 5. 发明授权
    • Selecting and monitoring signal lines with spurious transients in broadband network
    • 在宽带网络中选择和监控带有虚假瞬变的信号线
    • US06291983B1
    • 2001-09-18
    • US09066278
    • 1998-04-24
    • Edward Payson Clarke, Jr.Robert Alan FlavinPerwaiz NihalGeoffrey Hale PurdyNorbert George Vogl
    • Edward Payson Clarke, Jr.Robert Alan FlavinPerwaiz NihalGeoffrey Hale PurdyNorbert George Vogl
    • G01R1900
    • H04B3/46H04N17/00
    • The invention is a broadband network monitoring system and method. The system has one or more RF carrier generators that generate one or more generator signals, called a reference signal, each of the generator signals having a generator signal frequency. One or more RF transient detectors sense a line signal on one or more broadband lines in the broadband network. Each line signal has one or more test signals applied by a remote RF carrier generator. Each test signal has a frequency equal to one of the reference signals. Each RF transient detector senses and compares the test signal and the reference signal in various ways to produce a transient indicator when the test signal and reference/generator signal are not the same. The transient indicator indicates that there may be a perturbation or some other problem in the respective broadband line. A controller is connected to each of the RF transient detectors and controls an RF switch and an analyzer. The RF switch has two or more inputs connected to each respective RF detector and one output connected to the analyzer. When the controller receives a transient indicator, it controls the switch to connect the broadband line producing the transient indicator to the analyzer and, in a preferred embodiment, starts the analyzer. In this way, all of the broadband lines can be monitored and analyzed for perturbations using a single analyzer.
    • 本发明是一种宽带网络监控系统及方法。 该系统具有一个或多个RF载波发生器,其产生称为参考信号的一个或多个发生器信号,每个发生器信号具有发生器信号频率。 一个或多个RF瞬态检测器感测宽带网络中的一个或多个宽带线路上的线路信号。 每个线路信号具有由远程RF载波发生器施加的一个或多个测试信号。 每个测试信号具有等于参考信号之一的频率。 每个射频瞬态检测器以各种方式检测并比较测试信号和参考信号,以便在测试信号和参考/发生器信号不相同时产生瞬态指示。 瞬态指示符表示相应宽带线路中可能存在扰动或其他问题。 控制器连接到每个RF瞬态检测器,并控制RF开关和分析器。 RF开关具有两个或更多个输入,其连接到每个相应的RF检测器,一个输出连接到分析器。 当控制器接收到瞬态指示器时,它控制开关将产生瞬态指示器的宽带线连接到分析器,并且在优选实施例中,启动分析器。 以这种方式,可以使用单个分析仪监测和分析所有宽带线路的扰动。