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475 条记录 (耗时 0.014 秒)

    ADSL splitter
    41.
    发明公开
    ADSL splitter 审中-公开
    ADSL Verteiler

    公开(公告)号：EP1901540A1

    公开(公告)日：2008-03-19

    申请号：EP06019190.5

    申请日：2006-09-13

    申请人： YCL ELECTRONICS CO., LTD.

    发明人： Chen, Yung-Sheng ,  Liu, Wen-Chung

    IPC分类号： H04M11/06

    CPC分类号： H04M11/062 ,  H03H7/427 ,  H04L5/023 ,  H04L5/143

    摘要： A signal splitter includes a common mode choke circuit (34, 34') that includes a first choke coil (T1) having two input nodes (e) coupled to an incoming telephone line, and two output nodes (f) coupled respectively to two first input nodes (a) of a first filter inductor (L1) of a first filter circuit (31), and a second choke coil (T2) having two input nodes (g) coupled respectively to two second output nodes (d) of a second filter inductor (L2) of a third filter circuit (33), and two output nodes (h) coupled to a telephony instrument. A second filter circuit (32) includes a first capacitor (C1) coupled between two first output nodes (b) of the first filter inductor (L1) that are coupled respectively to two second input nodes (c) of the second filter inductor (L2). The third filter circuit (33) further includes a second capacitor (C2) coupled between the second output nodes (d) of the second filter inductor (L2).

    摘要翻译： 信号分离器包括共模扼流电路（34,34'），其包括具有耦合到输入电话线的两个输入节点（e）的第一扼流圈（T1）和分别耦合到两个第一 第一滤波器电路（31）的第一滤波电感器（L1）的输入节点（a）和具有两个输入节点（g）的第二扼流线圈（T2）分别耦合到第二滤波器电路的第二输出节点（d） 第三滤波器电路（33）的滤波电感器（L2）和耦合到电话仪器的两个输出节点（h）。 第二滤波器电路（32）包括耦合在第一滤波电感器（L1）的两个第一输出节点（b）之间的第一电容器（C1），它们分别耦合到第二滤波电感器（L2）的两个第二输入节点（c） ）。 第三滤波器电路（33）还包括耦合在第二滤波电感器（L2）的第二输出节点（d）之间的第二电容器（C2）。

    ADAPTIVE-ALLOCATION OF I/O BANDWIDTH USING A CONFIGURABLE INTERCONNECT TOPOLOGY
    43.
    发明公开
    ADAPTIVE-ALLOCATION OF I/O BANDWIDTH USING A CONFIGURABLE INTERCONNECT TOPOLOGY 有权
    的I / O带宽适应分配使用可配置的连接拓扑

    公开(公告)号：EP1716474A4

    公开(公告)日：2007-05-02

    申请号：EP05706081

    申请日：2005-01-25

    申请人： RAMBUS INC

    发明人： CHING MICHAEL ,  WOO STEVEN C

    IPC分类号： G06F13/40 ,  G06F3/00 ,  H04L5/14 ,  H04L5/18 ,  H04L25/02

    CPC分类号： G06F13/4072 ,  H04L5/14 ,  H04L5/143 ,  H04L5/18 ,  H04L25/0272 ,  H04L25/0294 ,  Y02D10/14 ,  Y02D10/151

    摘要： Apparatus and methods allocate I/O bandwidth of an electrical component, such as an IC, by configuring an I/O interface finto various types of interfaces. In an embodiment of the present invention, an I/O interface is configured into either a bi-directional contact, unidirectional contact (including either a dedicated transmit or dedicated receive contact) or a maintenance contact used in a maintenance or calibration mode of operation. The I/O interface is periodically reconfigured to optimally allocate I/O bandwidth responsive to system parameters, such as changing data workloads in the electronic components. System parameters include, but are not limited to, 1) number of transmit-receive bus turnarounds; 2) number of transmit and/or receive data packets; 3) user selectable setting 4) number of transmit and/or receive commands; 5) direct requests from one or more electronic components; 6) number of queued transactions in one or more electronic components; 7) transmit burst-length setting, 8) duration or cycle count of bus commands, and control strobes such as address/data strobe, write enable, chip select, data valid, data ready; 9) power and/or temperature of one or more electrical components; 10) information from executable instructions, such as a software application or operating system; 11) multiple statistics over respective periods of time to determine if using a different bandwidth allocation would result in better performance.; The importance of a system parameter may be weighted over time in an embodiment of the present invention.

    Destination dependent coding for discrete multi-tone modulation
    46.
    发明公开
    Destination dependent coding for discrete multi-tone modulation 有权
    接收器依赖性编码离散多音调制

    公开(公告)号：EP0981222A3

    公开(公告)日：2006-01-04

    申请号：EP99306377.5

    申请日：1999-08-12

    申请人： International Business Machines Corporation

    发明人： Davis, Gordon T., c/o IBM UK Ltd, IP Law

    IPC分类号： H04L5/06 ,  H04M11/06

    CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0046 ,  H04L5/143 ,  H04L5/1438 ,  H04M11/062

    摘要： Systems, methods and computer program products are provided for simultaneously transmitting data over a plurality of subscriber lines, such as twisted pair telephone wires, extending between a shared device and a respective plurality of remote devices using a symbol-based discrete multi-tone transmission scheme. A destination code within a first group of frequency bands and modulated data within a second group of frequency bands different from the first group of frequency bands, are transmitted from the shared device to the remote devices. The second group of frequency bands is selected for a subscriber line connected to a remote device having the destination code within the first group of frequency bands. A number of bits transmitted within each of the frequency bands in the second group of frequency bands for a remote device is selected during a communication handshake between the remote device and the shared device by probing a subscriber line connected to the remote device to determine data rates that can be supported by the subscriber line at each of a plurality of frequency bands.

    Asymmetric digital subscriber loop transceiver and method
    47.
    发明授权
    Asymmetric digital subscriber loop transceiver and method 失效
    非对称数字用户线收发器的方法和电路

    公开(公告)号：EP0919085B1

    公开(公告)日：2005-08-17

    申请号：EP97928875.0

    申请日：1997-06-10

    申请人： Analog Devices, Inc.

    发明人： RIBNER, David, Byrd ,  ROBERTSON, David, Hall

    IPC分类号： H04B1/38 ,  H04L27/26

    CPC分类号： H04L5/143 ,  H04L5/023

    摘要： A discrete multi-tone, asymmetrical transceiver (10') and method wherein a modem at a central office (12') transmits information to a modem at a remote terminal (14') on a down-stream signal and the modem at the remote terminal (14') transmits information to the modem at the central office (12') on an up-stream signal. The up-stream signal comprises data carried by a lower portion of a predetermined band of frequencies and the down-stream signal comprises data carried by an upper portion of the predetermined band of frequencies.

    DETECTING A CARRIER SIGNAL BY USING A POWER AVERAGING CIRCUIT
    50.
    发明公开
    DETECTING A CARRIER SIGNAL BY USING A POWER AVERAGING CIRCUIT 有权
    使用电路一个延迟的信号采集导致最大需求VALUE

    公开(公告)号：EP1535438A1

    公开(公告)日：2005-06-01

    申请号：EP03767126.0

    申请日：2003-08-05

    申请人： Scientific-Atlanta, Inc.

    发明人： KIEN, Thai-Bao, H. ,  AO, Jiening ,  WEST, Lamar, E., Jr.

    IPC分类号： H04L27/14

    CPC分类号： H04L27/0014 ,  H04L5/143

    摘要： The present invention provides an aparatus and method for detecting the presence of a carrier signal that is included in the reverse signals of a communications system. The present invention uses an improved apparatus that determines the average power of the reverse signals during a predetermined counting cycle. The average power is then compared to a threshold power value. If the average power exceeds the threshold power value, an enable signal is provided to allow further transmission of the reverse signals.