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    • 2. 发明授权
    • Fiber/wired communication system
    • 光纤/有线通信系统
    • US06654563B1
    • 2003-11-25
    • US09460770
    • 1999-12-14
    • Thomas Edward DarcieBhavesh N. DesaiAlan H. GnauckXiaolin LuSheryl Leigh Woodward
    • Thomas Edward DarcieBhavesh N. DesaiAlan H. GnauckXiaolin LuSheryl Leigh Woodward
    • H04J1408
    • H04N7/17309H04B10/25751H04N7/22
    • A communication system between head-ends and end-users is provided which expands bandwidth and reliability. A concentrator receives communication signals from a head-end and forwards the received communication signals to one or more fiber nodes and/or one or more mini-fiber nodes. The concentrator demultiplexes/splits received signals for the mini-fiber nodes and the fiber nodes and forwards demultiplexed/split signals respectively. The mini-fiber nodes may combine signals received from the head-end with loop-back signals used for local medium access control prior to forwarding the signals to the end-users. Upstream data are received by the mini-fiber nodes and/or fiber node and transmitted to the concentrator. The concentrator multiplexes/couples the mini-fiber node and the fiber node upstream signals and forwards multiplexed/coupled signals to the head-end. Communication signals received from the mini-fiber nodes that are destined to other end-users also connected to the mini-fiber nodes may be routed by the concentrator without head-end interaction.
    • 提供头端和终端用户之间的通信系统,可扩展带宽和可靠性。 集中器从头端接收通信信号,并将接收到的通信信号转发到一个或多个光纤节点和/或一个或多个微型光纤节点。 集中器对微型光纤节点和光纤节点进行解复用/分离接收信号,并分别转发分离/分离信号。 在将信号转发给最终用户之前,微型光纤节点可以组合从头端接收的信号和用于本地介质访问控制的环回信号。 上行数据由微型光纤节点和/或光纤节点接收并发送到集中器。 集中器将微纤维节点和光纤节点上行信号复用/耦合,并将多路复用/耦合信号转发到前端。 从迷你光纤节点接收的目的地为也连接到微型光纤节点的其他最终用户的通信信号可以由集线器路由,而无需头端交互。
    • 6. 发明授权
    • Fiber/wired communication system
    • 光纤/有线通信系统
    • US07734179B1
    • 2010-06-08
    • US10639456
    • 2003-08-13
    • Thomas Edward DarcieBhavesh N. DesaiAlan H. GnauckXiaolin LuSheryl Leigh Woodward
    • Thomas Edward DarcieBhavesh N. DesaiAlan H. GnauckXiaolin LuSheryl Leigh Woodward
    • H04J14/00
    • H04N7/17309H04B10/25751H04N7/22
    • A communication system between head-ends and end-users is provided which expands bandwidth and reliability. A concentrator receives communication signals from a head-end and forwards the received communication signals to one or more fiber nodes and/or one or more mini-fiber nodes. The concentrator demultiplexes/splits received signals for the mini-fiber nodes and the fiber nodes and forwards demultiplexed/split signals respectively. The mini-fiber nodes may combine signals received from the head-end with loop-back signals used for local medium access control prior to forwarding the signals to the end-users. Upstream data are received by the mini-fiber nodes and/or fiber node and transmitted to the concentrator. The concentrator multiplexes/couples the mini-fiber node and the fiber node upstream signals and forwards multiplexed/coupled signals to the head-end. Communication signals received from the mini-fiber nodes that are destined to other end-users also connected to the mini-fiber nodes may be routed by the concentrator without head-end interaction.
    • 提供头端和终端用户之间的通信系统,可扩展带宽和可靠性。 集中器从头端接收通信信号,并将接收到的通信信号转发到一个或多个光纤节点和/或一个或多个微型光纤节点。 集中器对微型光纤节点和光纤节点进行解复用/分离接收信号,并分别转发分离/分离信号。 在将信号转发给最终用户之前,微型光纤节点可以组合从头端接收的信号和用于本地介质访问控制的环回信号。 上行数据由微型光纤节点和/或光纤节点接收并发送到集中器。 集中器将微纤维节点和光纤节点上行信号复用/耦合,并将多路复用/耦合信号转发到前端。 从迷你光纤节点接收的目的地为也连接到微型光纤节点的其他最终用户的通信信号可以由集线器路由,而无需头端交互。
    • 8. 发明授权
    • Apparatus and method to monitor communication system status
    • 监控通信系统状态的装置和方法
    • US6137780A
    • 2000-10-24
    • US908498
    • 1997-08-07
    • Thomas Edward DarcieAlan H. GnauckXiaolin Lu
    • Thomas Edward DarcieAlan H. GnauckXiaolin Lu
    • H04L12/26G06F11/00H04B7/212H04B7/216
    • H04L12/2602H04L43/00H04L43/0817
    • A monitoring apparatus and method are provided for a communication system in which a central office communicates to at least one end unit using intermediate remote nodes. The remote node receives signals from both the central office and the end units. Each remote node can be equipped with apparatus for monitoring the integrity of paths of the communication system. The monitoring apparatus can include a mixing device that mixes received signals to produce combined signals. The received signals generally include a pilot signal sent from the central office and a data signal sent from the at least one end unit. The state of the communication system is analyzed based on the combined signals. If the combined signals includes only the data signal from the end unit, the path through which the pilot signal was sent is inoperative. If the combined signals includes only the pilot signal, the transmission path from the end unit over which the data signal is sent is inoperative. If the combined signals are not received at the central office after transmission of the pilot signal, a determination is made that any part of transmission path could be inoperative.
    • 提供了一种用于通信系统的监视装置和方法,其中中心局使用中间远程节点与至少一个终端单元进行通信。 远程节点接收来自中心局和终端单元的信号。 每个远程节点可以配备有用于监视通信系统的路径的完整性的装置。 监视装置可以包括混合装置,其混合接收到的信号以产生组合信号。 所接收的信号通常包括从中心局发送的导频信号和从至少一个终端单元发送的数据信号。 基于组合信号分析通信系统的状态。 如果组合信号仅包括来自端单元的数据信号,则导频信号被发送的路径不起作用。 如果组合信号仅包括导频信号,则从发送数据信号的终端单元的传输路径不起作用。 如果在发送导频信号之后在中心局没有接收到组合信号,则确定传输路径的任何部分可能不起作用。