Method and apparatus for maintaining availability of lifeline telephony
service on a hybrid fiber-coax network
    7.
    发明授权
    Method and apparatus for maintaining availability of lifeline telephony service on a hybrid fiber-coax network 失效
    在混合光纤同轴网络上维持生命线电话服务的可用性的方法和装置

    公开(公告)号:US6028916A

    公开(公告)日:2000-02-22

    申请号:US001642

    申请日:1997-12-31

    CPC classification number: H04M19/001 H04L12/2801 Y10T307/625

    Abstract: An apparatus and method of powering a cable telephony service platform (CTSP) in a hybrid fiber coax (HFC) network are provided which utilizes a combination of power from a local AC driven power source having a back-up battery for powering the CTSP within a network interface unit (NIU) during interruptions in normal AC power, and a network generated charging current which maintains the battery at full float voltage charge irrespective of the duration of any such interruptions in AC power delivery. Thus, the present invention minimizes power required to be delivered by the network while still ensuring support of reliable lifeline telephony service for cable telephony on an HFC network.

    Abstract translation: 提供了一种在混合光纤同轴电缆(HFC)网络中为有线电话服务平台(CTSP)供电的装置和方法,其利用来自具有备用电池的本地AC驱动电源的功率组合来为CTSP供电 网络接口单元(NIU),以及网络产生的充电电流,其将电池维持在全浮动电压电荷,而不管AC电力传输中的任何这种中断的持续时间。 因此,本发明使网络所需的功率最小化,同时仍然确保支持在HFC网络上的有线电话的可靠的生命线电话服务。

    Method and apparatus for monitoring local telephony service power on a hybrid fiber-coax network
    10.
    发明授权
    Method and apparatus for monitoring local telephony service power on a hybrid fiber-coax network 失效
    用于监控混合光纤同轴网络上的本地电话服务功率的方法和装置

    公开(公告)号:US06393105B1

    公开(公告)日:2002-05-21

    申请号:US09468391

    申请日:1999-12-20

    CPC classification number: H04M19/001 H04L12/2801 Y10T307/625

    Abstract: An apparatus. and method of powering a cable telephony service platform (CTSP) in a hybrid fiber coax (HFC) network are provided which utilizes a combination of power from a local AC driven power source having a back-up battery for powering the CTSP within a network interface unit (NIU) during interruptions in normal AC power, and a network generated charging current which maintains the battery at full float voltage charge irrespective of the duration of any such interruptions in AC power delivery. Thus, the present invention minimizes power required to be delivered by the network while still ensuring support of reliable lifeline telephony service for cable telephony on an HFC network.

    Abstract translation: 一种装置 并提供了对混合光纤同轴电缆(HFC)网络中的有线电话服务平台(CTSP)供电的方法,其利用来自具有备用电池的本地AC驱动电源的功率的组合来为CTSP在网络接口 单元(NIU)在正常交流电源中断期间,以及网络产生的充电电流,其将电池维持在完全浮充电压电荷,而不管AC电力传送中的任何这种中断的持续时间。 因此,本发明使网络所需的功率最小化,同时仍然确保支持在HFC网络上的有线电话的可靠的生命线电话服务。

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