公开(公告)号：WO2004028126A1

公开(公告)日：2004-04-01

申请号：PCT/DE2003/003097

申请日：2003-09-17

Applicant: EPCOS AG ,  HUEMER, Philipp ,  CONNETT, David ,  MORIANZ, Mike ,  FELLNER, Siegfried

Inventor： HUEMER, Philipp ,  CONNETT, David ,  MORIANZ, Mike ,  FELLNER, Siegfried

IPC: H04M3/18

CPC classification number: H05K3/301 ,  H01C1/022 ,  H04M3/18 ,  H05K2201/10022 ,  H05K2201/10537 ,  H05K2203/168

Abstract: Die Erfindung betrifft eine elektrische Baugruppe mit einem Gehäuse (1), enthaltend wenigstens zwei gleichartige elektrische Bauelemente (21, 22), die in Bezug auf eine Kenngröße aneinander angepaßt sind, und mit Anschlüssen (311, 312, 321, 322) zur separaten Kontaktierung jedes einzelnen Bauelements (21, 22). Die Baugruppe kann vorteilhaft bei Telekomanwendungen verwendet werden, wo zwei Telefonleitungen mit Thermistoren derselben Widerstandsklasse bestückt werden müssen.

Abstract translation: 本发明涉及包括含有其适于在相对于一个特征值彼此至少两个相同的电部件（21，22），壳体（1）的电组件及与终端（311，312，321，322），用于分别接触 的每个单独的部件（21，22）。 模块可以有利地在电信应用中使用，其中两条电话线与热敏电阻相同的电阻类必须库存。

公开(公告)号：WO03036773A2

公开(公告)日：2003-05-01

申请号：PCT/US0232158

申请日：2002-10-08

Applicant: OCCAM NETWORKS

Inventor： RUMER MARK

IPC: H04M1/74 ,  H04M3/18 ,  H02H3/32 ,  H04N1/00

CPC classification number: H04M1/745 ,  H04M3/18

Abstract: A protection device includes a substrate capable of suppressing electromagnetic fields, with a channel formed therein, a current dependent circuit interrupter (24) disposed inside the channel, and voltage management circuitry (26) coupled to the substrate. The voltage management circuitry is electrically coupled to the current dependent circuit interrupter (24) so as to form a crowbar (28) circuit in the presence of overvoltage or undervoltage conditions as determined according to a reference voltage.

Abstract translation: 保护装置包括能够抑制电磁场的衬底，其中形成有通道，设置在通道内的电流依赖电路断续器（24）和耦合到衬底的电压管理电路（26）。 电压管理电路电耦合到电流相关电路断续器（24），以便在存在根据参考电压确定的过电压或欠压条件的情况下形成撬棒（28）电路。

公开(公告)号：WO02089458A8

公开(公告)日：2003-03-20

申请号：PCT/US0213438

申请日：2002-04-30

Applicant: OCTAVE COMMUNICATIONS INC

Inventor： O'MALLEY WILLIAM ,  GRANDGENT CHARLES M

IPC: G06F15/16 ,  H04L12/16 ,  H04L12/18 ,  H04M3/18 ,  H04M3/20 ,  H04M3/42 ,  H04M3/56 ,  H04M9/08 ,  H04Q1/45 ,  H04M11/00

CPC classification number: H04M3/56 ,  H04L12/1813 ,  H04L12/1818 ,  H04M3/18 ,  H04M3/20 ,  H04M3/567 ,  H04M3/568 ,  H04M3/569 ,  H04M2201/18 ,  H04Q1/45

Abstract: The present invention comprises a method for audio/video conferencing including an audio conferencing platform (26), the platform comprising network interface cards (38-40), processing boards (44-46), a CPU (48), a TDM bus (42) and a PCI bus (50). The method comprises using dynamic threshold value to determine whether there is speech on a line. In one aspect, the method comprises determining a dynamic threshold value based on one or more chracteristics of signals received on a port, associating that dynamic threshold value with the port; and comparing one or more characteristics of signals subsequently received on the port to the dynamic threshod value. Signals received over a plurality of ports are summed, but for ports whose signal characterisics have a specified relationship to the dynamic threshold value associated with that port, signals are not contained in the sum.

Abstract translation: 本发明包括一种用于音频/视频会议的方法，包括音频会议平台（26），该平台包括网络接口卡（38-40），处理板（44-46），CPU（48），TDM总线 42）和PCI总线（50）。 该方法包括使用动态阈值来确定线上是否存在语音。 一方面，该方法包括基于在端口上接收到的信号的一个或多个特征来确定动态阈值，将该动态阈值与端口相关联; 并将随后在端口上接收的信号的一个或多个特性与动态阈值进行比较。 在多个端口上接收的信号相加，但是对于其信号特性与与该端口相关联的动态阈值具有指定关系的端口，信号不包含在总和中。

公开(公告)号：WO02050970A2

公开(公告)日：2002-06-27

申请号：PCT/GB2001/005641

申请日：2001-12-19

IPC: H04Q3/42 ,  H04M3/18 ,  H02H

CPC classification number: H04M3/18

Abstract: An overvoltage protection circuit for preventing voltage and current overload on a telephone line conductor (11, 13) to prevent damage to a SLIC (22) has a first SCR (47) for connecting the conductor to a reference potential (42) and a first trigger means (D1, TR5, R1) operable to switch the SCR from a first, OFF state to a second, ON state. The trigger means (D1, TR5, R1) is voltage-triggered by voltages exceeding a first magnitude on said conductor and current-triggered by voltages exceeding a second magnitude on said conductor, thereby to provide overvoltage protection at two discrete voltage magnitudes.

Abstract translation: 一种用于防止电话线路导体（11,13）上的电压和电流过载以防止对SLIC（22）的损坏的过电压保护电路具有用于将导体连接到参考电位（42）的第一SCR（47）和第一 触发装置（D1，TR5，R1）可操作以将SCR从第一OFF状态切换到第二ON状态。 触发装置（D1，TR5，R1）由所述导体上的超过第一幅度的电压触发，并且由所述导体上超过第二幅度的电压触发，从而在两个离散电压幅度下提供过电压保护。

公开(公告)号：WO01043409A3

公开(公告)日：2002-05-10

申请号：PCT/GB2000/004761

申请日：2000-12-12

IPC: H04M3/18 ,  H04B3/32

CPC classification number: H04M3/18

Abstract: An interference cancellation method for use in a communications system in which a plurality of communication paths are arranged to transmit and receive respective analogue signals comprises effecting an initialisation phase to calculate, for each path, the interference effects of the signals transmitted on that path on the signals received on each of the other paths, and storing for each a plurality of weighting factors representing the interference on each of the other paths respectively. During transmission, said weighting factors are used to generate from the transmitted signal on one of the said paths and to apply said cancellation signals to signals received on said other paths, thereby to cancel the interference effect of said transmitted signals.

Abstract translation: 用于其中布置多个通信路径以发送和接收相应的模拟信号的通信系统中的干扰消除方法包括：对每个路径执行初始化阶段，以计算在该路径上传输的信号的干扰效应 在每个其他路径上接收的信号，并且分别为每个其他路径分别存储表示干扰的多个加权因子。 在传输期间，所述加权因子用于从所述路径之一上的发射信号产生，并将所述抵消信号应用于在所述其它路径上接收到的信号，从而消除所述发射信号的干扰效应。

公开(公告)号：WO02033797A1

公开(公告)日：2002-04-25

申请号：PCT/US2001/032477

申请日：2001-10-17

IPC: H04M3/18 ,  H02H9/00

CPC classification number: H04M3/18

Abstract: A failsafe mechanism for protecting telecommunication equipment, having a tip (26) and ring (28), by shunting a sustained overvoltage or excessive current surge to ground, includes a failsafe clip (36), a diode bridge (11), and a trigger unit (12). The trigger unit is configured to bias the second end of the failsafe clip in the normally open position, but releases the failsafe clip when either the sustained overvoltage causes the module components to become excessively hot, or the current surge is high enough to cause a fusible link (34) to part, whereby the failsafe clip shunts all current to the ground.

Abstract translation: 一种用于保护电信设备的故障安全机制，包括一个故障保护夹（36），一个二极管桥（11）和一个触发器，具有尖端（26）和环（28），通过将持续的过电压或过大的电流浪涌分流到地 单位（12）。 触发单元被配置为将故障保护夹的第二端偏置在常开位置，但是当持续过电压使模块组件变得过热时，释放故障保护夹，或者电流浪涌足够高以引起易熔 链路（34）连接到部分，由此故障保护夹将所有电流分流到地面。

公开(公告)号：WO01043415A2

公开(公告)日：2001-06-14

申请号：PCT/US2000/041071

申请日：2000-10-04

IPC: H04L27/26 ,  H04M3/18 ,  H04M3/30 ,  H04M11/06 ,  H04M11/00

CPC classification number: H04M11/062 ,  H04L27/2602 ,  H04M3/18 ,  H04M3/30

Abstract: A method for reducing audible noise in a telephone from a splitterless asymmetric digital subscriber line modem. The modem examines the shape of the power spectrum of fast retrain signals both when the telephone is on-hook and off-hook. By comparing the spectra, in particular the slopes of the spectra, the modem may determine the quality of the telephone that shares the telephone loop with the modem. The modem cuts back its transmitted power depending on the quality of the telephone by an amount that suppresses the audible noise in the telephone. In this manner, a customer may simultaneously use the telephone and the modem on the same telephone loop.

Abstract translation: 一种用于从无分路器非对称数字用户线调制解调器降低电话中的可听噪声的方法。 调制解调器检查电话挂机和摘机时快速重新训练信号功率谱的形状。 通过比较光谱，特别是光谱的斜率，调制解调器可以确定与调制解调器共享电话环路的电话的质量。 调制解调器根据电话机的质量将其发射功率减少一定量，从而抑制电话中的可听见的噪音。 以这种方式，客户可以在相同的电话回路上同时使用电话和调制解调器。

公开(公告)号：WO01020743A1

公开(公告)日：2001-03-22

申请号：PCT/US2000/025337

申请日：2000-09-15

IPC: H01T1/14 ,  H01T4/12 ,  H02H9/06 ,  H04M3/18 ,  H04Q1/14 ,  H05K1/02 ,  H05K1/18 ,  H02H7/00

CPC classification number: H01T1/14 ,  H01T4/12 ,  H02H9/06 ,  H04M3/18 ,  H04Q1/146 ,  H05K1/0254 ,  H05K1/181

Abstract: A protection circuit and module include a gas dissipation tube having a first element (2a) connected to a telephone tip input signal, a second element (2b) connected to a telephone ring input signal, and a third element (2c) connected to ground. A first series resistor (8) connects the first element to a telephone tip output signal, and a second series resistor (10) connects the second element to a telephone ring output signal. A diode bridge (20) is connected between the tip and ring signals. The connection between the resistors or the diode bridge (20) and the tip and ring signals may be fusible traces laid out on the printed circuit board, which melt in response to a power surge occuring on the tip signal, ring signal, and/or ground.

Abstract translation: 保护电路和模块包括具有连接到电话端输入信号的第一元件（2a），连接到电话环输入信号的第二元件（2b）和连接到地的第三元件（2c）的气体放电管。 第一串联电阻（8）将第一元件连接到电话端输出信号，第二串联电阻（10）将第二元件连接到电话环输出信号。 二极管桥（20）连接在尖端和环形信号之间。 电阻器或二极管电桥（20）之间的连接以及尖端和环形信号可以是布置在印刷电路板上的可熔迹，其响应于尖端信号，振铃信号和/或 地面。

公开(公告)号：WO00063974A1

公开(公告)日：2000-10-26

申请号：PCT/US2000/009708

申请日：2000-04-12

IPC: H01L29/747 ,  H01L29/87 ,  H04M3/18 ,  H01L27/02 ,  H02H9/02 ,  H02H9/04

CPC classification number: H04M3/18 ,  H01L29/747 ,  H01L29/87

Abstract: An integrated circuit telephone line protection module (10) that provides both overcurrent and overvoltage protection to a telephone line (12). A preferred embodiment of the module (10) contains a pair of bidirectional current carrying devices (60, 80). A shunt resistance (74, 94) is formed in series with each telephone line conductor (16, 18) so that when an overcurrent condition exists on one or both of the telephone line conductors, the respective bidirectional devices (60, 80) are driven into conduction, thereby short circuiting the excessive current to ground. Independent of the overcurrent protection functions, each bidirectional device (60, 80) is also responsive to an overvoltage condition on the telephone line (12) to thereby clamp or crowbar the overvoltage to ground.

Abstract translation: 一种向电话线路（12）提供过电流和过电压保护的集成电路电话线路保护模块（10）。 模块（10）的优选实施例包含一对双向载流装置（60,80）。 与每个电话线路导体（16,18）串联形成并联电阻（74,94），使得当一个或两个电话线路导体上存在过电流状况时，各个双向装置（60,80）被驱动 导通，从而使过大的电流短路到地。 与过电流保护功能无关，每个双向装置（60,80）也响应于电话线路（12）上的过电压状态，从而将过电压钳位或撬开。

公开(公告)号：WO00036809A1

公开(公告)日：2000-06-22

申请号：PCT/CA1999/001112

申请日：1999-11-18

IPC: H04M3/00 ,  H04M3/18 ,  H04M19/00

CPC classification number: H04M3/18 ,  H04M3/005 ,  H04M19/001 ,  H04M2201/80

Abstract: A protection arrangement for a telephone subscriber line interface circuit is disclosed. The arrangement is particularly useful for protecting an electronic telephone set from over-voltage and over-current fault conditions. The arrangement provides a FET (34) that operates in saturation mode to connect an office battery (22) to the subscriber line under normal operation. The FET (34) also provides isolation capabilities for protecting the line circuit from an over-current condition on the subscriber line. Over-voltage protection is provided by way of an isolation relay (12) between the line circuit and the subscriber line. Both the FET and isolation relay are operated by a controller (16) that uses timers in the methods of over-voltage and over-current protection that it performs. A further capability of the arrangement is that is resets itself after the fault condition has ended. This feature is particularly useful in the case of fault conditions of short duration.

Abstract translation: 公开了一种用于电话用户线接口电路的保护装置。 该装置对于保护电子电话机免受过电压和过电流故障条件特别有用。 该装置提供了在饱和模式下工作的FET（34），以在正常操作下将办公室电池（22）连接到用户线路。 FET（34）还提供用于保护线路电路免受用户线路上的过电流状况的隔离能力。 通过线路电路和用户线路之间的隔离继电器（12）提供过电压保护。 FET和隔离继电器都由控制器（16）操作，控制器（16）使用其执行的过电压和过流保护方法中的定时器。 该装置的另一个能力是在故障状态结束后重新设置。 在短时间的故障情况下，该功能特别有用。