Wideband transmission through wire
    14.
    发明授权
    Wideband transmission through wire 失效
    通过线宽传输

    公开(公告)号:US6111895A

    公开(公告)日:2000-08-29

    申请号:US858170

    申请日:1997-05-14

    CPC分类号: H04B3/32

    摘要: A method for broadband transmissions through metallic wire in an interference-laden environment. Wideband communication through a wire is achieved in the presence of other wideband signals in the wire or in adjacent wires by applying a modulation schema to the wideband communication signal that forms a signal which is orthogonal or nearly orthogonal to all other signals that are present in the wire, whether directly applied or electromagnetically induced. In accordance with one illustrated embodiment, a CDMA code is applied to the wideband signal that is to be communicated through a given wire, and the code that is employed is orthogonal to the CDMA codes that are applied to other signals that flow through the wire or through other wires which are in the neighborhood of the given wire.

    摘要翻译: 一种在受干扰环境中通过金属线进行宽带传输的方法。 通过线路中的其他宽带信号的存在,通过对宽带通信信号应用调制方案来实现通过线路的宽带通信,所述宽带通信信号形成与所述其他信号中存在的所有其他信号正交或几乎正交的信号 电线,无论是直接应用还是电磁感应。 根据一个所示的实施例,将CDMA码应用于要通过给定线路传送的宽带信号,并且所采用的码与被应用于流过线的其他信号的CDMA码正交,或 通过在给定电线附近的其他电线。

    Wideband communication system for the home
    15.
    发明授权
    Wideband communication system for the home 失效
    宽带通信系统为家庭

    公开(公告)号:US6061326A

    公开(公告)日:2000-05-09

    申请号:US943312

    申请日:1997-10-14

    IPC分类号: H04L27/26 H04M11/06 H04L12/28

    CPC分类号: H04M11/06 H04L27/2601

    摘要: A wideband communication system is achieved with apparatus coupled to a wire pair, such as the wire pair provided by a communication services provider at a customer's premises. Disclosed is an embodiment which illustratively employs CDMA as the modulation schema for communicated signals and which, by this means, achieves a bandwidth in the range of 1 MHz. Specifically, a modem is interposed between the wire pair and the customer premises devices which modulates applied signals using code division modulation. The customer premises devices interface with the modem through interfaces that are specialized for the type of device that does the communication, and through a controller that manages the interactions. Illustratively, the apparatus includes the ability to provide one or more POTS ports, an ISDN port, and an asynchronous digital port. Protocol with the provider's network is effected through a signaling channel that occupies a preselected frequency band. Of course, a corresponding modem and controller are present at the service provider's end of the wire pair.

    摘要翻译: 通过耦合到线对的设备来实现宽带通信系统,例如由客户驻地处的通信服务提供商提供的有线对。 公开了说明性地使用CDMA作为通信信号的调制模式的实施例,并且通过这种方式实现了1MHz范围内的带宽。 具体来说,调制解调器被插入在线对和客户端设备之间,其使用码分多址调制来调制所施加的信号。 客户端设备通过专用于进行通信的设备类型的接口以及通过管理交互的控制器与调制解调器接口。 说明性地,该装置包括提供一个或多个POTS端口,ISDN端口和异步数字端口的能力。 具有提供商网络的协议通过占用预选频带的信令信道来实现。 当然,对应的调制解调器和控制器存在于电线对的服务提供商的末端。