公开(公告)号：US20180103142A1

公开(公告)日：2018-04-12

申请号：US15726849

申请日：2017-10-06

Applicant: CANON KABUSHIKI KAISHA

Inventor： Teruhiko SUZUKI ,  Masahiro SHINOTSUKA ,  Kazunori MIYAKE

IPC: H04M1/74 ,  H01F27/28 ,  H01F17/00 ,  H02M3/335 ,  H01F27/38 ,  H04N1/00

CPC classification number: H04M1/74 ,  H01F17/00 ,  H01F27/28 ,  H01F27/38 ,  H01F2017/0093 ,  H02M1/12 ,  H02M3/33507 ,  H02M2001/123 ,  H04M2201/80 ,  H04N1/0001 ,  H04N1/00082 ,  H04N1/00994

Abstract: An image forming apparatus may have the followings. A switching transformer has a first coil, a second coil, and a first core. The switching transformer generates a secondary side current in the second coil by a magnetic flux generated in the first core by a current that flows in the first coil. A common mode choke coil has a third coil, a fourth coil, and a second core. The common mode choke coil reduces a common mode noise. The switching transformer and the common mode choke coil are mounted on a substrate so that a direction of the magnetic flux generated in the first core and a direction of a magnetic flux generated in the second core are perpendicular.

公开(公告)号：US20170353590A1

公开(公告)日：2017-12-07

申请号：US15538914

申请日：2015-07-07

Applicant: ZTE Corporation

Inventor： Shaowu SHEN

IPC: H04M1/02 ,  G01R31/02 ,  H04M1/24

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

Abstract: At least some embodiments of disclosure include a method and device for grounding adjustment. The method includes: acquiring a grounding parameter of a port to be detected of a terminal, wherein the grounding parameter is reflective of a grounding state of the port to be detected; when the grounding parameter exceeds a predetermined threshold, determining that the grounding state of the port to be detected does not meet a preset requirement; and adjusting the port to be detected not meeting the preset requirement according to a reason why the grounding state does not meet the preset requirement.

公开(公告)号：US20170041456A1

公开(公告)日：2017-02-09

申请号：US15226424

申请日：2016-08-02

Applicant: CANON KABUSHIKI KAISHA

Inventor： Junji Iguchi

IPC: H04M1/74 ,  H04M3/22 ,  H04N1/00

CPC classification number: H04M1/745 ,  H04M3/2209 ,  H04M2201/52 ,  H04M2201/80 ,  H04N1/0001 ,  H04N1/00037 ,  H04N1/00076 ,  H04N1/00206 ,  H04N2201/0094

Abstract: There is provided a method for capturing a line after an elapse of a predetermined time, in a case where the line has been disconnected caused by an occurrence of a specific event in which a heavy load signal is input to an input side connecting the line. The control method for controlling a communication apparatus configured to perform a data communication via a line, includes detecting a signal on the line, disconnecting the line based on a level of the detected signal, and capturing the line based on an elapse of a predetermined time after the line has been disconnected.

Abstract translation: 提供了一种在经过预定时间之后捕获线的方法，在由连接该线路的输入侧输入重负载信号的特定事件的发生导致线路已断开的情况下。 用于控制被配置为经由线路进行数据通信的通信装置的控制方法包括检测线路上的信号，基于检测信号的电平来断开线路，并且基于预定时间的经过捕获线路 线路断开后。

公开(公告)号：US20160330334A1

公开(公告)日：2016-11-10

申请号：US15109366

申请日：2014-12-24

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

Inventor： Ian Robert COOPER ,  Leslie Derek HUMPHREY

IPC: H04M19/08

CPC classification number: H04M19/08 ,  H04M2201/80

Abstract: A system comprising customer premises equipment including a reverse power supply unit and an access node 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, the reverse power supply unit including a power consumption signature detector 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.

Abstract translation: 一种包括客户驻地设备的系统，包括反向电源单元和接入节点，客户端设备连接到接入节点，用于允许连接到客户驻地设备的电话设备经由客户驻地设备和接入节点进行和接收电话呼叫。 反向电源单元适合于通过双绞铜线从客户的房屋向接入节点提供电力，反向电源单元包括功率消耗签名检测器，可操作以检测从反向电源单元抽取的电力是否对应 指示当直接连接到反向电源单元并且没有经由限流接口连接时，指示电话设备处于或转变到摘机状态的签名功耗模式。

公开(公告)号：US08705728B2

公开(公告)日：2014-04-22

申请号：US12885906

申请日：2010-09-20

Applicant: Qiangsheng Charssen Ge ,  Elizabeth Ellen Perry ,  David Paul Chabinec

Inventor： Qiangsheng Charssen Ge ,  Elizabeth Ellen Perry ,  David Paul Chabinec

IPC: H04M1/00

CPC classification number: H04M1/745 ,  H04M3/005 ,  H04M3/18 ,  H04M2201/80

Abstract: A device includes a plurality of subscriber line interface circuits and a shared protection device. Each subscriber line interface circuit has a voltage input terminal and first and second interface line terminals. The shared protection device is coupled to the interface line terminals and operable to sense a negative reference voltage representing a most negative one of the voltages present on the voltage input terminals and to provide overvoltage protection responsive to a voltage on at least one of the interface line terminals exceeding the negative reference voltage.

Abstract translation: 一种设备包括多个用户线接口电路和共享保护设备。 每个用户线接口电路具有电压输入端和第一和第二接口线端子。 共享保护装置耦合到接口线路终端并且可操作以感测代表电压输入端子上存在的最大负电压的负参考电压，并且响应于至少一个接口线路上的电压提供过电压保护 端子超过负参考电压。

公开(公告)号：US06760437B1

公开(公告)日：2004-07-06

申请号：US09148357

申请日：1998-09-04

Applicant: Wi-Cher Lim

Inventor： Wi-Cher Lim

IPC: H04M1900

CPC classification number: H04M3/18 ,  H02H9/02 ,  H04M2201/80 ,  H04M2207/203

Abstract: An overcurrent protection circuit for an analog modem which uses passive-device features during normal operation to minimize modem signal noise and distortion, and active-device features when inadvertently connected to a line having excessive line current.

Abstract translation: 用于模拟调制解调器的过流保护电路，其在正常操作期间使用无源器件特征来最小化调制解调器信号噪声和失真，以及当无意中连接到具有过大线路电流的线路时的有源器件特征。

公开(公告)号：US20130070383A1

公开(公告)日：2013-03-21

申请号：US13621321

申请日：2012-09-17

Applicant: Raymond Pepe

Inventor： Raymond Pepe

IPC: H02H3/20

CPC classification number: H02H3/20 ,  H04M1/745 ,  H04M2201/80

Abstract: A protector module for use with a communication system, such as a telephone system having a tip line and a ring line, includes a base member and a plurality of electrically conductive pins mounted on the base member. A first electrical contact is fixedly mounted on the top surface of the base member and is in electrical communication with one of the tip line and the ring line. A movable second electrical contact is connected to a ground pin mounted on the base member and is situated in alignment with the first electrical contact. A solder pellet, which may melt in high current, long duration power surges, and a solid state device, are positioned between the first and second electrical contacts.

Abstract translation: 用于通信系统的保护器模块，例如具有尖端线和环形线的电话系统，包括基座部件和安装在基座部件上的多个导电销。 第一电触点固定地安装在基底构件的顶表面上并与尖端线和环线之一电连通。 可移动的第二电触头连接到安装在基座构件上的接地销，并且与第一电触头对准。 可以在高电流，长时间的功率浪涌中熔化的焊料颗粒和固态设备位于第一和第二电触点之间。

公开(公告)号：US20050099755A1

公开(公告)日：2005-05-12

申请号：US10705415

申请日：2003-11-10

Applicant: David Martin ,  Curtis Dietzsch

Inventor： David Martin ,  Curtis Dietzsch

IPC: H01T1/14 ,  H02H9/06 ,  H04M3/18

CPC classification number: H01T1/14 ,  H02H9/06 ,  H04M3/18 ,  H04M2201/80 ,  Y02A30/50

Abstract: A surge protection device includes a gas discharge tube surge protector connected between a Tip line and a Ring line, and further includes solid state heat-generating resistive elements in the Tip and Ring lines, and thermally-responsive sneak current grounding switches in the Tip and Ring lines that have an untripped position connecting Tip and Ring line terminals of the surge protector respectively to the Tip and Ring line resistive elements, and a tripped position in which they ground the Tip and Ring line terminals. The switches are switched to their tripped position in response to the heat generated in the resistive elements as a consequence of current passing through them that exceeds a predetermined current level. A surge suppression element is connected in parallel with each of the resistive elements. The resistive elements are preferably carbon film resistors, and the surge suppression elements are preferably transient voltage suppression diodes.

Abstract translation: 浪涌保护装置包括连接在尖端线和环线之间的气体放电管浪涌保护器，并且还包括尖端和环形线中的固态发热电阻元件，以及尖端中的热响应潜行电流接地开关 具有将电涌保护器的尖端和环线端子分别连接到尖端和环线电阻元件的脱扣位置的环形线以及它们将尖端和环形线路端子接地的跳闸位置。 响应于电流元件中产生的热量，开关切换到跳闸位置，这是由于电流通过它们而超过预定电流水平的结果。 浪涌抑制元件与每个电阻元件并联连接。 电阻元件优选为碳膜电阻器，浪涌抑制元件优选为瞬态电压抑制二极管。

公开(公告)号：US20050073793A1

公开(公告)日：2005-04-07

申请号：US10679196

申请日：2003-10-03

Applicant: Mohammad Masghati

Inventor： Mohammad Masghati

IPC: H02H9/02 ,  H02H9/04 ,  H04M3/18 ,  H02H9/06

CPC classification number: H02H9/042 ,  H02H9/026 ,  H04M3/18 ,  H04M2201/80

Abstract: A dual stage current limiting surge protector system for protecting telecommunications equipment from power and surge transients is provided. The surge protector system includes a voltage suppressor having first and second ends operatively coupled between input tip and ring terminal pins. The first and second ends of the voltage suppressor are also operatively coupled between output tip and ring terminal pins. First and second current limiting devices are interconnected between the input tip and ring terminal pins and the respective first and second ends of the voltage suppressor. Third and fourth current limiting devices are interconnected between the output tip and ring terminal pins and the respective first and second ends of the voltage suppressor.

Abstract translation: 提供了一种用于保护电信设备免受电力和浪涌瞬变的双级限流浪涌保护器系统。 浪涌保护器系统包括电压抑制器，其具有可操作地耦合在输入尖端和环形端子引脚之间的第一和第二端。 电压抑制器的第一端和第二端也可操作地耦合在输出尖端和环形端子引脚之间。 第一和第二限流装置在输入尖端和环形端子引脚与电压抑制器的相应的第一和第二端之间互连。 第三和第四限流器件在输出尖端和环形端子引脚与电压抑制器的相应的第一和第二端之间互连。

公开(公告)号：US20040027754A1

公开(公告)日：2004-02-12

申请号：US10214838

申请日：2002-08-08

Applicant: General Instrument Corporation

Inventor： Phillip Kent Freyman

IPC: H02H003/20

CPC classification number: H04M3/18 ,  H02H9/026 ,  H02H9/041 ,  H04M2201/80

Abstract: A method and/or device that may be used in locations where equipotential bonding is not practiced can be installed on a customer premises equipment device basis that provides over-voltage protection between the AC main and HFC ground planes. According to one aspect of the present invention, a bonding link is established between the AC main and the HFC coaxial braid that allows energy surges to bypass the CPE equipment and to be passed on to the AC mains, which are traditionally more equipped to deal with these large energy surges. According to another aspect of the present invention, an apparatus is disclosed that may be incorporated into any premises powered HFC CPE device for protection. The apparatus provides a surge energy bypass path around the CPE device being protected and allow voltage differentials to be normalized between systems.

Abstract translation: 可以在不实施等电位连接的位置使用的方法和/或设备可以安装在基于客户驻地设备设备的基础上，在AC主站和HFC接地层之间提供过电压保护。 根据本发明的一个方面，在AC主体和HFC同轴编织物之间建立了一个接合链路，其允许能量浪涌绕过CPE设备并被传递到交流电源，传统上更有能力处理 这些大的能量激增。 根据本发明的另一方面，公开了可以并入到用于保护的任何房屋供电的HFC CPE装置中的装置。 该设备提供围绕被保护的CPE设备的浪涌能量旁路路径，并允许电压差在系统之间被归一化。