用于通过电话线提供电力的方法和设备

    公开(公告)号:CN106063239A

    公开(公告)日:2016-10-26

    申请号:CN201480076627.3

    申请日:2014-12-24

    CPC classification number: H04M19/08 H04M2201/80

    Abstract: 一种系统包括包含反向供电单元(40)的客户驻地设备和接入节点(90),客户驻地设备连接到接入节点(90)以允许连接到客户驻地设备的电话类装置经由客户驻地设备和接入节点打和接电话。反向供电单元适于经由铜双绞线(8)从客户驻地向接入节点提供电力,反向供电单元包括电力消耗标识检测器(212),其可操作以检测从反向供电单元抽取的电力是否对应于指示电话类装置在直接连接到反向供电单元而不是经由电流限制接口来连接时处于或转变为脱钩状态的标识电力消耗模式。客户驻地设备还包括电流限制结构,其连接到客户驻地接线,用于将连接到客户驻地接线的电话类装置可以抽取的电流的量和/或电流的最大增长率限制为不大于预定量或速率,客户驻地接线以语音信号可以从电话类装置传输到双绞线连接到的接入节点的方式连接到铜双绞线。接入网单元(90)包括电流变化率限制装置(91),其中,电流变化率限制装置具有以下特性中的一个或更多个:在连接到50V dc电源时小于150mA/s的电流抽取的最大变化率;并且包括用于执行电流变化率限制的回相器(92)提供了预定电感,以在增大其来自指定dc电源的电力消耗时提供电流抽取的预定最大变化率。

    电话呼叫自动记录仪
    2.
    发明公开

    公开(公告)号:CN107483699A

    公开(公告)日:2017-12-15

    申请号:CN201710840580.9

    申请日:2017-09-18

    Applicant: 黄生林

    Inventor: 黄生林

    CPC classification number: H04M1/656 H04M2201/00 H04M2201/80 H04M2250/60

    Abstract: 本发明公开了电话呼叫自动记录仪,其特征在于:包括桥式整流二极管D、二极管D1、三极管T1、T2、继电器、电阻R1、R2、R3、R4、R5、R6、R7、电容C1、C2和C3,所述的桥式整流二极管D的端口1和端口3之间依次串联电阻R3、电容C1、电阻R1、电阻R2和电阻R4;所述的桥式整流二极管D的端口2和端口4之间连接电阻R5,桥式整流二极管D的端口2还连接三极管T1的基集;所述的三极管T1的基集和发射极之间连接电容C3,三极管T1的集电极与三极管T2的基集之间连接电阻R7。本发明通过上述原理,该电路结构简单,占用空间小,记录结果准确,实用性强。

    一种电子调节计算机网络通话免持装置

    公开(公告)号:CN108234731A

    公开(公告)日:2018-06-29

    申请号:CN201611193575.5

    申请日:2016-12-21

    Inventor: 安洁琳

    CPC classification number: H04M1/6025 H04M1/19 H04M1/6033 H04M2201/80

    Abstract: 本发明公开了一种电子调节计算机网络通话免持装置,其结构包括:免持话筒、计算机上盖、显示屏、摄像头、计算机上盖连接架、电源连接口、网络连接口、VGA连接口、USB连接口、耳机连接口、主机体、触控架盘、电源按钮,所述主机体的右侧设有免持话筒,所述主机体通过计算机上盖连接架和计算机上盖连接,所述计算机上盖上设有显示屏,所述主机体的左侧设有电源连接口,本发明结构简单,设有降噪器,可以有效的去除使用时的环境噪音,有效的提高通话质量,设有过载保护器,可以有效的防止电流或者电压过大对设备造成损坏。

    SHARED PROTECTION SCHEME FOR MULTIPLE VARIABLE BATTERIES
    6.
    发明申请
    SHARED PROTECTION SCHEME FOR MULTIPLE VARIABLE BATTERIES 有权
    多种可变电池的共享保护方案

    公开(公告)号:US20120069990A1

    公开(公告)日:2012-03-22

    申请号:US12885906

    申请日:2010-09-20

    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。

    Dual stage current limiting surge protector system
    7.
    发明授权
    Dual stage current limiting surge protector system 失效
    双级限流浪涌保护器系统

    公开(公告)号:US06992874B2

    公开(公告)日:2006-01-31

    申请号:US10679196

    申请日:2003-10-03

    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。

    Method and device for bonding AC utilities and HFC access networks for surge mitigation
    8.
    发明授权
    Method and device for bonding AC utilities and HFC access networks for surge mitigation 有权
    用于连接交流电力公司和HFC接入网络用于浪涌缓解的方法和设备

    公开(公告)号:US06934138B2

    公开(公告)日:2005-08-23

    申请号:US10214838

    申请日:2002-08-08

    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。

    OVER-CURRENT PROTECTION APPARATUS AND METHOD

    公开(公告)号:US20180241203A1

    公开(公告)日:2018-08-23

    申请号:US15866508

    申请日:2018-01-10

    Abstract: An over-current protection apparatus constituted of: a transistor disposed on a substrate; a first thermal sense device arranged to sense a temperature reflective of a junction temperature of the transistor; a second thermal sense device arranged to sense a temperature reflective of a temperature of a casing surrounding the substrate; and a control circuitry, arranged to alternately: responsive to the sensed temperature by the first thermal sense device and the sensed temperature of the second thermal sense device being indicative that the temperature difference between the transistor junction and the substrate casing is greater than a predetermined value, switch off the transistor; and responsive to the sensed temperature by the first thermal sense device and the sensed temperature by the second thermal sense device being indicative that the temperature difference between the transistor junction and the substrate casing is not greater than the predetermined value, switch on the transistor.

    System and method for providing telephone service restrictions
    10.
    发明申请
    System and method for providing telephone service restrictions 审中-公开
    提供电话服务限制的系统和方法

    公开(公告)号:US20040057188A1

    公开(公告)日:2004-03-25

    申请号:US10254157

    申请日:2002-09-24

    CPC classification number: H04M3/18 H04M2201/80

    Abstract: A telecommunications network is provided which includes a protector device for protecting an associated telecommunications line. The protector device protects the associated telecommunications line from hazardous voltages and/or currents. Further, and in accordance with the present invention, the protector device also protects the associated telecommunications line from unauthorized use. The protector device regulates the class of service provided over the associated telecommunications line. A filter circuit integral with the protector device can be readily configured to pass or block signal frequencies depending on the class of service purchased.

    Abstract translation: 提供了一种电信网络,其包括用于保护相关电信线路的保护装置。 保护装置保护相关电信线免受危险电压和/或电流的影响。 此外,根据本发明,保护装置还保护相关联的电信线路免受未经授权的使用。 保护装置调节通过相关电信线路提供的服务等级。 与保护器装置成一体的滤波器电路可以容易地配置为根据购买的服务等级传递或阻止信号频率。

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