公开(公告)号：WO2014170247A1

公开(公告)日：2014-10-23

申请号：PCT/EP2014/057479

申请日：2014-04-14

Applicant: ALCATEL LUCENT

Inventor： VAN DEN BERG, Eric ,  VAN BRUYSSEL, Danny

IPC: H04M11/06 ,  H03F1/02 ,  H04M3/18

CPC classification number: H03F1/02 ,  H04M3/18 ,  H04M11/062 ,  H04M2201/80

Abstract: The present invention relates to a transmission arrangement (100; 200) comprising a line driver (130) for driving a transmission line (L) with a transmit signal (Vs) comprising successive transmit DMT symbols (S1 to S5), and a clamping device (152; 252; 254) for protecting the line driver from signal surges occurring over the transmission line. in accordance with an embodiment of the invention, the transmission arrangement further comprises a peak amplitude equalizer (111) configured to increase the amplitude of selected signal crests (V1P; V2P) of respective transmit DMT symbols (S1; S2) up to a desired crest value (VOPT) for short recharge of the clamping device. The present invention also relates to a method for driving a transmission line (L) with a transmit signal (Vs) comprising successive transmit DMT symbols (S1 to S5).

Abstract translation: 本发明涉及一种传输装置（100; 200），包括用于利用包括连续传输DMT符号（S1至S5）的传输信号（Vs）驱动传输线（L）的线路驱动器（130）和夹紧装置 （152; 252; 254），用于保护线路驱动器免受在传输线路上发生的信号浪涌。 根据本发明的实施例，传输装置还包括峰值幅度均衡器（111），其被配置为将各个发射DMT符号（S1; S2）的所选择的信号峰值（V1P; V2P）的振幅增加到期望的波峰 值（VOPT）用于夹紧装置的短暂充电。 本发明还涉及一种用包括连续发送DMT符号（S1至S5）的发送信号（Vs）驱动传输线（L）的方法。

公开(公告)号：WO2005074241A1

公开(公告)日：2005-08-11

申请号：PCT/GB2005/000252

申请日：2005-01-25

Applicant: TYCO ELECTRONICS ARGENTINA SA ,  TYCO ELECTRONICS UK LTD ,  GUTNISKY, Walter, Gustavo

Inventor： GUTNISKY, Walter, Gustavo

IPC: H04M3/18

CPC classification number: H02H3/202 ,  H02H3/066 ,  H04M3/18 ,  H04M2201/80

Abstract: A protection device (10) uses a single-coil (15) latch relay (11) to decouple a telephone and/or data installation from DC transmission lines (12) in the event of a line AC/overvoltage disturbance. A trip circuit (19) and a reset circuit (21) are respectively connected to normally-closed (OUTA1, OUTB1) and normally-open (OUTA2, OUTB2) terminals of the relay to monitor the line voltage using an earth connection as a reference voltage, supplying respectively trip (23) or reset (25) currents to the coil for switching the relay. Hence, the protection device may operatively tolerate an inexpensive high-resistance earth connection. The reset current is supplied to the relay coil by a transistor circuit (Q1, Q2) only after the disturbance has ceased, the nominal transmission voltage has been restored and the line has stabilized for some seconds.

Abstract translation: 在线路AC /过电压干扰的情况下，保护装置（10）使用单线圈（15）闩锁继电器（11）将电话和/或数据装置与DC传输线（12）分离。 跳闸电路（19）和复位电路（21）分别连接到继电器的常闭（OUTA1，OUTB1）和常开（OUTA2，OUTB2）端子，以使用接地连接作为参考来监视线路电压 电压，分别为线圈提供跳闸（23）或复位（25）电流以切换继电器。 因此，保护​​装置可操作地容忍廉价的高电阻接地连接。 仅在干扰停止后，晶体管电路（Q1，Q2）将复位电流提供给继电器线圈，标称传输电压已恢复，线路稳定了几秒钟。

公开(公告)号：WO01008389A1

公开(公告)日：2001-02-01

申请号：PCT/US2000/019732

申请日：2000-07-20

IPC: H02H9/04 ,  H04M3/18 ,  H02H9/00

CPC classification number: H04M3/18 ,  H02H9/048 ,  H04M2201/80

Abstract: A surge reset circuit (200) used to automatically reset a surge protection circuit within a telephone line interface circuit. A sensor (300) (e.g., a zenering device) advantageously generates a voltage level representing current draining out of the transient voltage suppression portion of the surge protection circuit after a transient energy surge. If the current is draining, which may indicate a potential lockup situation, feedback circuitry (305) generates a reset feedback signal that is provided to a cutoff device (330). The cutoff device, in response to receiving the feedback signal, disables a current limiter portion of the surge protection circuit to reduce the current draining from the transient voltage suppression portion. As the current level is reduced, the transient voltage suppression portion will reset when the current drops below a threshold value or is substantially eliminated. As a result, the feedback circuitry removes the reset feedback signal from the cutoff device to re-enable the current limiter (34).

Abstract translation: 一种浪涌复位电路（200），用于自动复位电话线路接口电路内的浪涌保护电路。 传感器（300）（例如，齐纳装置）有利地产生表示在瞬态能量浪涌之后从浪涌保护电路的瞬态电压抑制部分排出的电流的电压电平。 如果电流正在排水，这可能指示潜在的锁定情况，则反馈电路（305）产生提供给切断装置（330）的复位反馈信号。 截止装置响应于接收到反馈信号而禁用浪涌保护电路的限流器部分，以减小从瞬态电压抑制部分流出的电流。 当电流电平降低时，当电流下降到阈值以下或基本上消除时，瞬态电压抑制部分将复位。 结果，反馈电路从切断装置去除复位反馈信号以重新启动限流器（34）。

公开(公告)号：WO2016101590A1

公开(公告)日：2016-06-30

申请号：PCT/CN2015/083478

申请日：2015-07-07

Applicant: 中兴通讯股份有限公司

Inventor： 沈少武

IPC: H04M1/725 ,  G01R31/02

CPC classification number: H04M1/0202 ,  G01R31/02 ,  G01R31/025 ,  G01R31/026 ,  H04M1/24 ,  H04M1/725 ,  H04M2201/80

Abstract: 本发明公开了一种接地调整方法及装置，其中，该方法包括：获取终端的待检测端口的接地参数，其中，接地参数用于反映待检测端口的接地状态；在接地参数超出预定阈值的情况下，确定待检测端口的接地状态不满足预设要求；依据接地状态不满足预设要求的原因对不满足预设要求的待检测端口进行调整。通过本发明解决了相关技术中无法对终端的接地状态进行检测和调整的问题，进而实现了终端智能接地检测及校准优化处理，防止接地问题导致的通讯质量差，发热高，静电释放等故障。

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。

公开(公告)号：WO1996011543A1

公开(公告)日：1996-04-18

申请号：PCT/CA1995000125

申请日：1995-03-08

Applicant: NORTHERN TELECOM LIMITED

Inventor： NORTHERN TELECOM LIMITED ,  PISTILLI, Antonio

IPC: H04M03/18

CPC classification number: H04M3/18 ,  H02H9/048 ,  H04M2201/80

Abstract: A telephone line interface circuit with d.c. amplifiers (12) coupled to tip and ring paths is protected against transient voltages by a crowbar-type protection device (52) coupled via a diode bridge (28, 30) to the tip and ring paths, positive and negative terminals of the diode bridge being connected respectively to ground and via a diode (54) to a negative supply voltage line for the amplifiers. The diode prevents discharge of a capacitor (26), coupled between the negative supply voltage line and ground, through the protection device when it conducts. A locked up state, in which the amplifiers maintain holding current to the protection device after a transient voltage, is avoided by further diodes (56, 58) coupled from the negative terminal of the diode bridge to inputs of the amplifiers, or by controlling a current limiter (34) to interrupt current to the capacitor when the diode is reverse biased, so that the capacitor discharges. The current limiter includes a resistance (38) and inductance (40) in series for sensing current, whereby initial charging current for the capacitor is reduced on closing of relay contacts (K1, K2) in series with the current limiter, and relay contact deterioration is avoided.

Abstract translation: 具有直流电的电话线路接口电路 耦合到尖端和环路的放大器（12）通过经由二极管桥（28,30）耦合到尖端和环路径的通路型保护装置（52）来防止瞬态电压，二极管桥的正端和负端 分别连接到地和通过二极管（54）连接到用于放大器的负电源电压线。 当二极管导通时，二极管防止通过保护装置在负电源电压线和地之间耦合的电容器（26）的放电。 通过从二极管电桥的负端子耦合到放大器的输入端的另外的二极管（56,58）避免放大器在瞬态电压之后保持对保护装置的保持电流的锁定状态，或通过控制 限流器（34）在二极管反向偏置时中断电容器电流，使电容放电。 电流限制器包括用于感测电流的电阻（38）和电感（40），由此在与限流器串联的继电器触点（K1，K2）闭合时，电容器的初始充电电流减小，并且继电器触点劣化 被避免。

公开(公告)号：EP3183869A1

公开(公告)日：2017-06-28

申请号：EP15833706.3

申请日：2015-07-28

Applicant: Broadband Node Technologies Pty Ltd.

Inventor： HALFORD, Ashley, Lester ,  DEL PAPA, John ,  DAVIES, William, Stanley ,  WASHINGTON, William, Alan ,  JOHNSON, Brian, Andrew

IPC: H04M7/00 ,  H04L12/12

CPC classification number: H04M3/007 ,  H04M3/18 ,  H04M11/062 ,  H04M2201/80 ,  H04Q11/0071 ,  H04Q2011/0064

Abstract: A method is provided for migrating at least one of a plurality of subscribers from a first service connecting the subscriber to an exchange to a second service connecting the subscriber to a FTTx node, the subscriber being connected to the first service via a subscriber line. The method includes establishing a connection between the FTTx node and the subscriber line at a node connection point; establishing a connection between the FTTx node and the exchange at the node connection point; and remotely activating the first service at the exchange and deactivating the second service at the FTTx node, or remotely deactivating the first service at the exchange and activating the second service at the FTTx node. Throughout the process, the subscriber remains physically and simultaneously connected to both the FTTx node and the exchange at all times.

Abstract translation: 提供了一种方法，用于将多个用户中的至少一个从将用户连接到交换机的第一服务迁移到将用户连接到FTTx节点的第二服务，该用户通过用户线连接到第一服务。 该方法包括在节点连接点建立FTTx节点和用户线路之间的连接; 在节点连接点建立FTTx节点与交换机之间的连接; 以及在交换机处远程激活第一服务并且在FTTx节点处停用第二服务，或者在交换机处远程停用第一服务并且在FTTx节点处激活第二服务。 在整个过程中，用户始终物理上同时连接到FTTx节点和交换机。

公开(公告)号：EP3090532A1

公开(公告)日：2016-11-09

申请号：EP14824064.1

申请日：2014-12-24

Applicant: British Telecommunications Public Limited Company

Inventor： COOPER, Ian Robert ,  HUMPHREY, Leslie Derek

IPC: H04M19/08

CPC classification number: H04M19/08 ,  H04M2201/80

Abstract: A system comprising customer premises equipment including a reverse power supply unit (40) and an access node (90) to which the customer premises equipment is connected for permitting telephony devices connected to the customer premises equipment to make and receive telephone calls via the customer premises equipment and the access node. The reverse power supply unit is suitable for supplying electrical power from the customer's premises to an access node via a twisted copper pair (8), the reverse power supply unit including a power consumption signature detector (212) operable to detect if the power drawn from the reverse power supply unit corresponds to a signature power consumption pattern indicative of a telephony device being in or transitioning into an off-hook state when connected directly to the reverse power supply unit and not being connected via a current limiting interface. The customer premises equipment also includes a current limit arrangement connected to a customer premises wiring for limiting the amount of current and/or the maximum rate of increase of current which can be drawn by a telephony device connected to the customer premises wiring to be no greater than a predetermined amount or rate, the customer premises wiring being connected to the twisted copper pair in such a manner that voice signals can be transmitted from the telephony device to an access node to which the twisted pair is connected. The access network unit (90) includes a rate of change of current limitation device (91) wherein the rate of change of current limitation device has one or more of the following properties: a maximum rate of change of current draw of less than 150mA/s when connected to a 50V dc power supply; and the inclusion of a gyrator (92) for performing the rate of change of current limitation providing a predetermined inductance in order to provide a predetermined maximum rate of change of current draw when increasing its power consumption from a specified dc power source.

公开(公告)号：EP2793455B1

公开(公告)日：2015-12-23

申请号：EP13305513.7

申请日：2013-04-19

Applicant: ALCATEL LUCENT

Inventor： Van Den Berg, Eric ,  Van BruysselL, Danny

IPC: H04M11/06 ,  H03F1/02 ,  H04M3/18

CPC classification number: H03F1/02 ,  H04M3/18 ,  H04M11/062 ,  H04M2201/80

Abstract: The present invention relates to a transmission arrangement (100; 200) comprising a line driver (130) for driving a transmission line (L) with a transmit signal (Vs) comprising successive transmit DMT symbols (S1 to S5), and a clamping device (152; 252; 254) for protecting the line driver from signal surges occurring over the transmission line. In accordance with an embodiment of the invention, the transmission arrangement further comprises a peak amplitude equalizer (111) configured to increase the amplitude of selected signal crests (V1P; V2P) of respective transmit DMT symbols (S1; S2) up to a desired crest value (VOPT) for short recharge of the clamping device. The present invention also relates to a method for driving a transmission line (L) with a transmit signal (Vs) comprising successive transmit DMT symbols (S1 to S5).

公开(公告)号：EP0913980A3

公开(公告)日：2001-04-25

申请号：EP98310260.9

申请日：1995-03-08

Applicant: Nortel Networks Limited

Inventor： Pistilli, Antonio

IPC: H04M3/18 ,  H02H9/04

CPC classification number: H04M3/18 ,  H02H9/048 ,  H04M2201/80

Abstract: A telephone line interface circuit with d.c. amplifiers (12) coupled to tip and ring paths is protected against transient voltages by a crowbar-type protection device (52) coupled via a diode bridge (28, 30) to the tip and ring paths, positive and negative terminals of the diode bridge being connected respectively to ground and via a diode (54) to a negative supply voltage line for the amplifiers. The diode prevents discharge of a capacitor (26), coupled between the negative supply voltage line and ground, through the protection device when it conducts. A locked up state, in which the amplifiers maintain holding current to the protection device after a transient voltage, is avoided by further diodes (56, 58) coupled from the negative terminal of the diode bridge to inputs of the amplifiers, or by controlling a current limiter (34) to interrupt current to the capacitor when the diode is reverse biased, so that the capacitor discharges. The current limiter includes a resistance (38) and inductance (40) in series for sensing current, whereby initial charging current for the capacitor is reduced on closing of relay contacts (K1, K2) in series with the current limiter, and relay contact deterioration is avoided.