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    Method for detecting bridged taps on telephony cable
    5.
    发明申请
    Method for detecting bridged taps on telephony cable 失效
    电话线上桥接抽头检测方法

    公开(公告)号：US20050243904A1

    公开(公告)日：2005-11-03

    申请号：US10838180

    申请日：2004-05-03

    申请人： Richard Hart ,  Raghvendra Savoor ,  Laurie King ,  George Cambron ,  Kapil Shrikhande

    发明人： Richard Hart ,  Raghvendra Savoor ,  Laurie King ,  George Cambron ,  Kapil Shrikhande

    IPC分类号： H04B1/38 ,  H04L12/66 ,  H04M3/30

    CPC分类号： H04M3/30 ,  H04L12/66 ,  H04M3/085 ,  H04M3/2209

    摘要： In a particular embodiment a method of collecting and processing modem data is provided. The method includes,during training of a broadband modem, sending a series of tones within a frequency transmission band of the broadband modem, receiving the transmitted series of tones at a receiving broadband modem, receiving a measurement value of a power level for each of the received tones in the series of tones transmitted to the receiving broadband modem, determining a transmission loss for each of the series of tones by comparing the predetermined transmission power level, and the received measured power level, performing a statistical match comparison between each of the received tone signals and a plurality of different computer models of a single transmission facility having various bridge taps connected to the single transmission facility, and determining a best fit between each of the received tone signals and one of the plurality of the bridge tap computer models. The series of tones have a predetermined transmission power level.

    摘要翻译： 在特定实施例中，提供了收集和处理调制解调器数据的方法。 该方法包括：在宽带调制解调器的训练期间，在宽带调制解调器的频率传输频带内发送一系列音调，在接收宽带调制解调器处接收所发送的一系列音调，接收每一个的功率电平的测量值 在发送到接收宽带调制解调器的一系列音调中接收到的音调，通过比较预定发射功率电平和接收到的测量功率电平来确定每一个音调中的每个音调的传输损耗，执行接收到的每一个之间的统计匹配比较 音调信号和具有连接到单个传输设施的各种桥接抽头的单个传输设施的多个不同计算机模型，以及确定每个接收到的音调信号与多个桥接抽头计算机模型中的一个之间的最佳拟合。 一系列音调具有预定的发射功率电平。

    Method of selecting a profile of a broadband communication line
    6.
    发明授权
    Method of selecting a profile of a broadband communication line 有权
    选择宽带通信线路的简档的方法

    公开(公告)号：US08159942B2

    公开(公告)日：2012-04-17

    申请号：US11096206

    申请日：2005-03-31

    申请人： Xidong Wu ,  Ganesh Krishnamuthi ,  Kapil Shrikhande ,  Raghvendra G. Savoor

    发明人： Xidong Wu ,  Ganesh Krishnamuthi ,  Kapil Shrikhande ,  Raghvendra G. Savoor

    IPC分类号： G01R31/08 ,  H04J3/16 ,  G06F15/173

    CPC分类号： H04M3/304 ,  H04M3/306

    摘要： The application discloses a system and a method of selecting a profile of a digital subscriber line. In a particular embodiment, the method includes setting a threshold for voice quality and determining a number of acceptable code violations that can occur without compromising the voice quality of the digital subscriber line. When the actual number of code violations exceeds the determined number of code violations an alternate profile is selected for the DSL line.

    摘要翻译： 本申请公开了一种选择数字用户线的简档的系统和方法。 在特定实施例中，该方法包括设置用于语音质量的阈值，并确定可以在不影响数字用户线路的语音质量的情况下可以发生的可接受代码违例的数量。 当实际的代码违例数量超过确定的代码违例数量时，为DSL线路选择一个备用配置文件。

    System and method for improving DSL performance
    8.
    发明授权
    System and method for improving DSL performance 失效
    改善DSL性能的系统和方法

    公开(公告)号：US07519110B2

    公开(公告)日：2009-04-14

    申请号：US11037847

    申请日：2005-01-18

    申请人： Kapil Shrikhande ,  Ganesh Krishnamurthi ,  Raghvendra G. Savoor

    发明人： Kapil Shrikhande ,  Ganesh Krishnamurthi ,  Raghvendra G. Savoor

    IPC分类号： H04B1/38

    CPC分类号： H04M3/306 ,  H04M11/062

    摘要： A system and method is described for determining a condition of a communication line, such as the absence of a filter device on a digital subscriber line (DSL). A first signal characterized by a high upstream power is activated over the line, and a first set of parameters associated with the communication line is obtained. A second signal characterized by a low upstream power is activated, and a second set of parameters associated with the communication line is obtained. Comparison of first and second sets of parameters is indicative of a condition of the connection and presences or absence of a DSL filter on the communication line.

    摘要翻译： 描述了用于确定通信线路的状况的系统和方法，诸如在数字用户线路（DSL）上没有滤波器设备。 通过线路激活以上游功率高的特征的第一信号，并且获得与通信线路相关联的第一组参数。 以下游功率为特征的第二信号被激活，并且获得与该通信线路相关联的第二组参数。 第一和第二组参数的比较表示通信线路上的DSL滤波器的连接状态和存在或不存在。

    METHODS AND APPARATUS TO TEST A SUBSCRIBER LINE FOR A BROADBAND ACCESS SERVICE
    9.
    发明申请
    METHODS AND APPARATUS TO TEST A SUBSCRIBER LINE FOR A BROADBAND ACCESS SERVICE 有权
    测试用于宽带接入服务的订户行的方法和装置

    公开(公告)号：US20090074155A1

    公开(公告)日：2009-03-19

    申请号：US11857724

    申请日：2007-09-19

    申请人： Jin Wang ,  Kapil Shrikhande

    发明人： Jin Wang ,  Kapil Shrikhande

    IPC分类号： H04M1/24 ,  H04B1/38 ,  H04M3/30 ,  H04B10/08

    CPC分类号： H04B10/07 ,  H04B10/0775 ,  H04M1/24 ,  H04M3/306

    摘要： Methods and apparatus to test a subscriber line for a broadband access service are disclosed. An example network interface device (NID) comprises a tone generator to transmit a tone on a subscriber line to characterize the subscriber line while a DSL modem is providing a DSL service via the subscriber line, the tone having a frequency occurring within a range of frequencies in use by the DSL modem to provide the DSL service, and a pair of terminals to couple the DSL modem and the tone generator to the subscriber line.

    摘要翻译： 公开了测试宽带接入服务的用户线路的方法和装置。 示例性网络接口设备（NID）包括音频发生器，用于在用户线路上发送音调以表征用户线路，而DSL调制解调器经由用户线路提供DSL服务，音调具有在频率范围内发生的频率 由DSL调制解调器使用以提供DSL服务，以及一对终端将DSL调制解调器和音调发生器耦合到用户线路。