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    SPECTRAL EXTENSION IN A CABLE NETWORK
    1.
    发明申请
    SPECTRAL EXTENSION IN A CABLE NETWORK 审中-公开

    公开(公告)号：US20180115434A1

    公开(公告)日：2018-04-26

    申请号：US15788515

    申请日：2017-10-19

    Applicant: Futurewei Technologies, Inc.

    Inventor： Xiaolong Zhang ,  Li Zhang ,  Tao Ouyang ,  James Jeng Chen

    IPC: H04L12/28 ,  H04L5/14

    CPC classification number: H04L12/2801 ,  H04L5/14 ,  H04L12/4625 ,  H04Q2213/13199

    Abstract: A system for cable network communications is provided, comprising a cable modem termination system (CMTS), a trunk cable coupled to the CMTS, cable modems (CMs) divided into at least a low frequency CM group and a high frequency CM group positioned between the CMTS and the low frequency CM group, one or more second taps attached to the trunk cable, with corresponding second drop cables coupled to one or more corresponding CMs of the low frequency CM group, and a first duplexer tap attached to the trunk cable between the CMTS and the one or more second taps, with a corresponding first drop cable coupled to a CM of the high frequency CM group. The first duplexer tap receives an input signal and provides a low frequency signal to the low frequency CM group and a high frequency signal to the high frequency CM group.

    Reverse-Direction Tap (RDT), Remote Diagnostic Management Tool (RDMT), and Analyses Using the RDT and the RDMT
    2.
    发明申请
    Reverse-Direction Tap (RDT), Remote Diagnostic Management Tool (RDMT), and Analyses Using the RDT and the RDMT 审中-公开
    反向抽头（RDT），远程诊断管理工具（RDMT）和使用RDT和RDMT的分析

    公开(公告)号：US20160241334A1

    公开(公告)日：2016-08-18

    申请号：US15042322

    申请日：2016-02-12

    Applicant: Futurewei Technologies, Inc.

    Inventor： John L. Moran, III ,  Liming Fang ,  Jim Chen ,  Li Zhang ,  Xiaolong Zhang ,  Karl E. Moerder ,  Marc L. Morrissette

    IPC: H04B10/077

    CPC classification number: H04B10/0775 ,  H04B10/0773 ,  H04L43/12 ,  H04L43/50 ,  H04N21/24

    Abstract: A coaxial cable tap comprises a housing, and a faceplate coupled to the housing. The faceplate comprises a first directional tap port, and a diagnostic reverse (DR) port configured to receive a first upstream signal originating downstream from the coaxial cable tap, and inject a downstream test signal in a downstream direction. A hybrid fiber-coaxial (HFC) network comprises a headend, a first amplifier coupled to the headend, and a tap coupled to the first amplifier, configured to couple to a plurality of cable modems (CMs), and comprising a diagnostic forward (DF) port configured to receive a downstream signal originating from the first amplifier, and inject an upstream test signal in an upstream direction for reception at the headend.

    Abstract translation: 同轴电缆分接头包括壳体和联接到壳体的面板。 面板包括第一方向抽头端口和诊断反向（DR）端口，该端口被配置为接收从同轴电缆抽头下游产生的第一上行信号，并且在下游方向上注入下游测试信号。 混合光纤同轴（HFC）网络包括头端，耦合到头端的第一放大器和耦合到第一放大器的抽头，被配置为耦合到多个电缆调制解调器（CM），并且包括诊断转发（DF ）端口，被配置为接收源自所述第一放大器的下行信号，并且在上行方向注入上行测试信号以在前端接收。

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