Loop integrity test device and method for digital subscriber line (XDSL) communication
    1.
    发明授权
    Loop integrity test device and method for digital subscriber line (XDSL) communication 失效
    用于数字用户线(XDSL)通信的环路完整性测试设备和方法

    公开(公告)号:US06366644B1

    公开(公告)日:2002-04-02

    申请号:US08929778

    申请日:1997-09-15

    IPC分类号: H04M124

    摘要: A digital subscriber line (xDSL) communication system (10) is disclosed that allows xDSL communication across a local loop. The system (10) includes a local loop termination point (14) and customer premises equipment (12) connected to a twisted pair telephone line (16). Loop integrity test devices (22, 24) for xDSL communication are located at the local loop termination point (14) and the customer premises equipment (12) and are coupled to the telephone line (16). The loop integrity test devices (22, 24) are respectively operable to transmit test signatures across the telephone line (16), to receive and evaluate test signatures from the telephone line (16), and to indicate whether the telephone line (16) can support xDSL communication based upon evaluation of test signatures.

    摘要翻译: 公开了允许通过本地环路进行xDSL通信的数字用户线路(xDSL)通信系统(10)。 系统(10)包括连接到双绞线电话线(16)的本地环路终端点(14)和客户端设备(12)。 用于xDSL通信的环路完整性测试设备(22,24)位于本地环路终端点(14)和客户驻地设备(12)处并耦合到电话线路(16)。 环路完整性测试设备(22,24)可分别用于在电话线路(16)上传输测试签名,以接收和评估来自电话线路(16)的测试签名,并指示电话线路(16)是否可以 基于测试签名的评估来支持xDSL通信。

    Remote XDSL transceiver unit and method of operation
    3.
    发明授权
    Remote XDSL transceiver unit and method of operation 失效
    远程XDSL收发器单元及其操作方法

    公开(公告)号:US06278728B1

    公开(公告)日:2001-08-21

    申请号:US09040884

    申请日:1998-03-18

    IPC分类号: H04B138

    CPC分类号: H04M11/062

    摘要: A remote XDSL transceiver unit (16) includes an XDSL transceiver (19) and a control block (18). The XDSL transceiver (19) is operable to establish and communicate across an XDSL physical layer. The control block (18) is coupled to the XDSL transceiver (19) and operates to transmit a request for service to a loop termination point. The control block (18) also operates to identify a signal received from the loop termination point (14) and respond based upon a current context of the remote XDSL transceiver unit (16). Further, the control block (18) operates to control power-up and training of the XDSL transceiver (19) such that the XDSL physical layer can be dynamically brought up and down. In one embodiment, the control block (18) operates to store profile information for an established XDSL physical layer to use for future re-establishing of the XDSL physical layer.

    摘要翻译: 远程XDSL收发器单元(16)包括XDSL收发器(19)和控制块(18)。 XDSL收发器(19)可操作以在XDSL物理层上建立和通信。 控制块(18)耦合到XDSL收发器(19)并且操作以将服务请求发送到循环终止点。 控制块(18)还用于识别从循环终止点(14)接收的信号,并且基于远程XDSL收发器单元(16)的当前上下文进行响应。 此外,控制块(18)操作以控制XDSL收发器(19)的上电和训练,使得XDSL物理层可以被动态上升和下降。 在一个实施例中,控制块(18)操作以存储用于将来重建XDSL物理层的已建立的XDSL物理层的简档信息。

    Method and system for self-testing a line card
    5.
    发明授权
    Method and system for self-testing a line card 有权
    自动测试线卡的方法和系统

    公开(公告)号:US07787386B1

    公开(公告)日:2010-08-31

    申请号:US10025599

    申请日:2001-12-18

    IPC分类号: H04L12/26

    摘要: According to one embodiment of the invention, a method for self-testing a portion of a line card having a digital signal processor for manipulating data received by the line card, and a transmit channel and a receive channel coupled to a combined transmit and receive channel includes transmitting a test signal through at least a portion of the transmit channel toward the combined channel and detecting, by the digital signal processor any resulting signal in the receive channel to determine whether any components in the transmit channel, receive channel or combined channel are malfunctioning.

    摘要翻译: 根据本发明的一个实施例,一种用于自行测试具有用于操纵由线卡接收的数据的数字信号处理器的线卡的一部分的方法,以及耦合到组合的发送和接收信道的发送信道和接收信道 包括通过所述发射信道的至少一部分朝向所述组合信道发射测试信号,并且由所述数字信号处理器检测所述接收信道中的任何结果信号,以确定所述发射信道,接收信道或组合信道中的任何组件是否发生故障 。

    Method and system for converting alternating current to ethernet in-line power
    9.
    发明授权
    Method and system for converting alternating current to ethernet in-line power 有权
    将交流电转换为以太网在线电源的方法和系统

    公开(公告)号:US07366297B1

    公开(公告)日:2008-04-29

    申请号:US10443938

    申请日:2003-05-21

    IPC分类号: H04M1/00

    CPC分类号: H04L12/10

    摘要: According to one embodiment, a method for converting alternating current voltage signals to Ethernet in-line power includes converting an alternating current voltage signal to an approximate direct current voltage signal, adding at least one odd harmonic of the approximate direct current voltage signal to produce a compensated direct current voltage signal, and conditioning the compensated direct current voltage signal to produce an Ethernet in-line power signal.

    摘要翻译: 根据一个实施例,一种用于将交流电压信号转换成以太网在线功率的方法包括将交流电压信号转换为近似直流电压信号,加上近似直流电压信号的至少一个奇次谐波以产生 补偿直流电压信号,并调节补偿的直流电压信号以产生以太网在线电源信号。

    Method and apparatus for determining crosstalk
    10.
    发明授权
    Method and apparatus for determining crosstalk 有权
    用于确定串扰的方法和装置

    公开(公告)号:US06553075B1

    公开(公告)日:2003-04-22

    申请号:US09228686

    申请日:1999-01-12

    IPC分类号: H04B110

    CPC分类号: H04B1/1027 H04B3/46 H04L1/20

    摘要: A system to analyze and compensate for noise on a transmission line (35) is provided. The system comprises a transmission card which includes a transceiver (32), and a microprocessor (34) attached to the transceiver (32). The system also comprises a transmission line (35) coupled to the transceiver (32) and at least one customer premise equipment (38) coupled to the transceiver (32) by the transmission line (35). The microprocessor (34) is operable to monitor the transmission line (32) and determine the signal-to-noise ratio on the line as a function of frequency, and adjust the rate of transmission in terms of bandwidth in terms of bits as a function of frequency.

    摘要翻译: 提供了一种用于分析和补偿传输线(35)上的噪声的系统。 该系统包括传输卡,其包括收发器(32)和附接到收发器(32)的微处理器(34)。 该系统还包括耦合到收发器(32)的传输线(35)和通过传输线(35)耦合到收发器(32)的至少一个客户驻地设备(38)。 微处理器(34)可操作以监测传输线(32)并确定线路上的信噪比作为频率的函数,并且根据位的带宽调整传输速率作为一个功能 的频率。