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    • 4. 发明授权
    • Optical fiber ring communication system
    • 光纤环通信系统
    • US07035540B2
    • 2006-04-25
    • US10750808
    • 2004-01-05
    • Christopher D. FinanMark Farley
    • Christopher D. FinanMark Farley
    • H04B10/20
    • H04J14/0283H04J14/0226H04J14/0227H04J14/0241H04J14/0287H04Q11/0005H04Q11/0067H04Q11/0071H04Q2011/0075H04Q2011/0092
    • An optical fiber ring network includes a plurality of interconnected nodes, each pair of neighboring nodes being interconnected by a pair of optical links. Using coarse wavelength division multiplexing, data is transmitted in both directions over each link, using a first wavelength λ1 to transmit data in a first direction over the link and a second wavelength λ2 to transmit data in a second, opposite direction over the link. The two wavelengths λ1 and λ2 differ by at least 10 nm. Each of the data streams transmitted over the optical link has a bandwidth of at least 2.5 Gbps. Further, each data stream has at least two logical streams embedded therein. A link multiplexer at each node of the network includes one or more link cards for coupling the link multiplexer to client devices, and one or more multiplexer units for coupling the link multiplexer to the optical links. Each link card includes frame buffers capable of storing numerous Fiber Channel frames that are being transmitted to and from the client device(s) coupled to that link card. The link card also includes flow control logic for pre-filling the frame buffers with frames of data before the receiving client devices send flow control messages to request their transmission. The combined effect of the frame buffers and flow control logic is that the full bandwidth of the links can be utilized even when the network nodes are very far apart and the client devices have small input data buffers.
    • 光纤环网包括多个互连节点,每对相邻节点由一对光链路互连。 使用粗波分复用,通过每个链路在两个方向上传输数据,使用第一波长λ1在链路上沿第一方向传输数据,第二波长λ2以链路上的第二相反方向传输数据。 两个波长λ1和λ2的差异至少为10nm。 通过光链路传输的每个数据流具有至少2.5Gbps的带宽。 此外,每个数据流具有嵌入其中的至少两个逻辑流。 在网络的每个节点处的链路多路复用器包括用于将链路多路复用器耦合到客户端设备的一个或多个链路卡,以及用于将链路复用器耦合到光链路的一个或多个多路复用器单元。 每个链接卡包括能够存储大量光纤通道帧的帧缓冲器,所述多个光纤通道帧正在和/或从耦合到该链接卡的客户端设备传输。 链路卡还包括流控制逻辑,用于在接收客户端设备发送流控制消息以请求它们的传输之前,用帧数据预填充帧缓冲器。 帧缓冲器和流控制逻辑的组合效果是,即使当网络节点相距很远并且客户端设备具有小的输入数据缓冲器时,也可以利用链路的全部带宽。
    • 10. 发明授权
    • Network tap with interface for connecting to pluggable optoelectronic module
    • 网络接头用于连接可插拔光电模块的接口
    • US07542681B2
    • 2009-06-02
    • US11119079
    • 2005-04-29
    • Kevin Scott CornellMark Farley
    • Kevin Scott CornellMark Farley
    • H04B10/00H04J14/00
    • G02B6/2804G02B6/4292
    • A network TAP that provides access to data communicated in a network. The TAP includes a first port for connecting to a pluggable optoelectronic module such as an optical transceiver, a link port for connecting to an optical link configured to receive and send data to the optical transceiver, and a TAP port for relaying diverted optical data to a storage and/or analyzing device. Couplers are used to split the optical signals entering the TAP from the first port and/or the link port such that a useable portion of the optical signal(s) can be stored and/or analyzed. The TAP also includes optical devices for relaying optical signals between components in the TAP.
    • 提供对在网络中传送的数据的访问的网络TAP。 TAP包括用于连接到诸如光收发器的可插拔光电模块的第一端口,用于连接到被配置为向光收发器接收和发送数据的光链路的链路端口,以及用于将转移的光数据中继到 存储和/或分析设备。 耦合器用于从第一端口和/或链路端口分离进入TAP的光信号,使得可以存储和/或分析光信号的可用部分。 TAP还包括用于在TAP中的组件之间中继光信号的光学装置。