公开(公告)号：US20130016418A1

公开(公告)日：2013-01-17

申请号：US13637026

申请日：2010-08-16

申请人： Jianhua Chen ,  Hong Yi

发明人： Jianhua Chen ,  Hong Yi

IPC分类号： G02F1/01

CPC分类号： G02F1/0123 ,  G02F1/225 ,  G02F2001/212 ,  H04B10/50575

摘要： The disclosure discloses a method and an apparatus for determining a bias point of a modulator, wherein the method includes: adding pilot signals to the bias voltages of the modulator; adjusting the bias point of the modulator at a predetermined step and acquiring a first harmonic amplitude value corresponding to each bias point in a backlight detection current signal output by the modulator; and determining a bias point corresponding to the maximum value of the first harmonic amplitude values associated with multiple bias points as the bias point of the modulator. By virtue of the disclosure, the detection of a difference frequency signal can be eliminated, thereby reducing the complexity and cost of a periphery control circuit while ensuring the control accuracy, effectively improving the stability and reliability of the control process, and improving the modulation and transmission performance of optical signals in the whole system.

摘要翻译： 本公开公开了一种用于确定调制器的偏置点的方法和装置，其中该方法包括：将导频信号添加到调制器的偏置电压; 在预定步骤调整调制器的偏置点，并获取由调制器输出的背光检测电流信号中对应于每个偏置点的一次谐波振幅值; 并且确定对应于与多个偏置点相关联的一次谐波振幅值的最大值的偏置点作为调制器的偏置点。 凭借本公开，可以消除差分频率信号的检测，从而降低外围控制电路的复杂性和成本，同时确保控制精度，有效提高控制过程的稳定性和可靠性，并改进调制和 光信号在整个系统中的传输性能。

公开(公告)号：US08774645B2

公开(公告)日：2014-07-08

申请号：US13634469

申请日：2010-08-20

申请人： Jianhua Chen ,  Hong Yi

发明人： Jianhua Chen ,  Hong Yi

IPC分类号： H04B10/06

CPC分类号： H04B10/69 ,  H04B10/50575 ,  H04B10/50577 ,  H04B10/677

摘要： Method and apparatus for controlling bias point of DQPSK demodulator are disclosed. The method comprises: step 1: respectively applying first and second bias voltages to I-path and Q-path, and applying identical pilot voltage signals to I-path and Q-path (S202); step 2: executing filtering processing on I-path and Q-path differential current signals collected by balance receiver and determining θIand θQ (S204); step 3: performing feedback control to first and second bias voltages respectively according to θI and θQ so that θI and θQ respectively reaches expected bias point values of I-path and Q-path (S206); executing step 2 and 3 cyclically at preset regular intervals (S208), so that θI and θQ remains consistently the expected bias point values of I-path and Q-path. The solution enables bias point of DQPSK demodulator to be locked at any expected bias point value, facilitates realization of digitization, and is not easily influenced.

摘要翻译： 公开了用于控制DQPSK解调器偏置点的方法和装置。 该方法包括：步骤1：分别对I路径和Q路径施加第一和第二偏置电压，并向I路径和Q路径施加相同的导频电压信号（S202）; 步骤2：对平衡接收机收集的I路径和Q路径差分电流信号执行滤波处理和确定; Iand＆thetas; Q（S204）; 步骤3：分别根据I和I等级Q对第一和第二偏置电压进行反馈控制，使得I和I等于Q分别达到I路径和Q路径的预期偏置点值（S206）; 以预定的时间间隔循环执行步骤2和3（S208），使得I和＆amp; t; Q保持一致地是I-path和Q-path的预期偏置点值。 该解决方案使DQPSK解调器的偏置点能够被锁定在任何预期的偏置点值，便于数字化的实现，并且不容易受到影响。

公开(公告)号：US08743448B2

公开(公告)日：2014-06-03

申请号：US13637026

申请日：2010-08-16

申请人： Jianhua Chen ,  Hong Yi

发明人： Jianhua Chen ,  Hong Yi

IPC分类号： G02F1/01

CPC分类号： G02F1/0123 ,  G02F1/225 ,  G02F2001/212 ,  H04B10/50575

摘要： The disclosure discloses a method and an apparatus for determining a bias point of a modulator, wherein the method includes: adding pilot signals to the bias voltages of the modulator; adjusting the bias point of the modulator at a predetermined step and acquiring a first harmonic amplitude value corresponding to each bias point in a backlight detection current signal output by the modulator; and determining a bias point corresponding to the maximum value of the first harmonic amplitude values associated with multiple bias points as the bias point of the modulator. By virtue of the disclosure, the detection of a difference frequency signal can be eliminated, thereby reducing the complexity and cost of a periphery control circuit while ensuring the control accuracy, effectively improving the stability and reliability of the control process, and improving the modulation and transmission performance of optical signals in the whole system.

摘要翻译： 本公开公开了一种用于确定调制器的偏置点的方法和装置，其中该方法包括：将导频信号添加到调制器的偏置电压; 在预定步骤调整调制器的偏置点，并获取由调制器输出的背光检测电流信号中对应于每个偏置点的一次谐波振幅值; 并且确定对应于与多个偏置点相关联的一次谐波振幅值的最大值的偏置点作为调制器的偏置点。 凭借本公开，可以消除差分频率信号的检测，从而降低外围控制电路的复杂性和成本，同时确保控制精度，有效提高控制过程的稳定性和可靠性，并改进调制和 光信号在整个系统中的传输性能。

公开(公告)号：US20130044366A1

公开(公告)日：2013-02-21

申请号：US13634469

申请日：2010-08-20

申请人： Jianhua Chen ,  Hong Yi

发明人： Jianhua Chen ,  Hong Yi

IPC分类号： G02F2/00

CPC分类号： H04B10/69 ,  H04B10/50575 ,  H04B10/50577 ,  H04B10/677

摘要： Method and apparatus for controlling bias point of DQPSK demodulator are disclosed. The method comprises: step 1: respectively applying first and second bias voltages to I-path and Q-path, and applying identical pilot voltage signals to I-path and Q-path (S202); step 2:executing filtering processing on I-path and Q-path differential current signals collected by balance receiver and determining θIand θQ (S204); step 3: performing feedback control to first and second bias voltages respectively according to θI and θQ so that θI and θQ respectively reaches expected bias point values of I-path and Q-path (S206); executing step 2 and 3 cyclically at preset regular intervals (S208), so that θI and θQ remains consistently the expected bias point values of I-path and Q-path. The solution enables bias point of DQPSK demodulator to be locked at any expected bias point value, facilitates realization of digitization, and is not easily influenced.

摘要翻译： 公开了用于控制DQPSK解调器偏置点的方法和装置。 该方法包括：步骤1：分别对I路径和Q路径施加第一和第二偏置电压，并向I路径和Q路径施加相同的导频电压信号（S202）; 步骤2：对平衡接收机收集的I路径和Q路径差分电流信号执行滤波处理和确定; Iand＆thetas; Q（S204）; 步骤3：分别根据I和I等级Q对第一和第二偏置电压进行反馈控制，使得I和I等于Q分别达到I路径和Q路径的预期偏置点值（S206）; 以预定的时间间隔循环执行步骤2和3（S208），使得I和＆amp; t; Q保持一致地是I-path和Q-path的预期偏置点值。 该解决方案使DQPSK解调器的偏置点能够被锁定在任何预期的偏置点值，便于数字化的实现，并且不容易受到影响。

公开(公告)号：US09431203B2

公开(公告)日：2016-08-30

申请号：US13567245

申请日：2012-08-06

申请人： Shelomon Patrick Doblack ,  Jianhua Chen ,  Matthew P. Galla

发明人： Shelomon Patrick Doblack ,  Jianhua Chen ,  Matthew P. Galla

IPC分类号： H01H85/36 ,  H01H37/76 ,  H01H37/04

CPC分类号： H01H85/36 ,  H01H37/761 ,  H01H2037/046 ,  H01H2037/762

摘要： A circuit protection device includes a housing, which includes first and second electrodes. The device includes a conductive slider inside the housing. At a first location within the housing, the slider provides an electrical connection between the first and second electrodes. At a second location within the housing, the slider does not provide the electrical connection. A spring is secured to and stretched between the slider and an inner side of the housing such that the spring is held in tension in an expanded state. The slider is held at the first location by a solder between the slider and the first and second electrodes. After the device is armed, detection of an over-temperature condition causes the solder to begin to melt and the spring to compress and pull the slider to the second location within the housing, thus severing the electrical connection between the first and second electrodes.

摘要翻译： 电路保护装置包括壳体，其包括第一和第二电极。 该装置包括在壳体内的导电滑块。 在壳体内的第一位置处，滑块提供第一和第二电极之间的电连接。 在壳体内的第二位置处，滑块不提供电连接。 弹簧被固定到滑块和壳体的内侧之间并被拉伸，使得弹簧在膨胀状态下保持张紧。 滑块通过滑块和第一和第二电极之间的焊料保持在第一位置。 在装置布防后，检测到过温度状况导致焊料开始熔化，并且弹簧压缩并拉动滑块到壳体内的第二位置，从而切断第一和第二电极之间的电连接。

公开(公告)号：US08581686B2

公开(公告)日：2013-11-12

申请号：US12383595

申请日：2009-03-24

申请人： Matthew P. Galla ,  Jianhua Chen ,  Martyn A. Mattheisen

发明人： Matthew P. Galla ,  Jianhua Chen ,  Martyn A. Mattheisen

IPC分类号： H01H37/76 ,  H01H85/143 ,  H01H71/20

CPC分类号： H01H37/761 ,  H01H2037/046 ,  H01H2037/762 ,  H01H2037/763

摘要： A reflowable thermal fuse includes a conduction element with first and second ends, disposed within a housing. The reflowable thermal fuse also includes an elastic element disposed within the housing and adapted to apply force on the conduction element in an activated state of the reflowable thermal fuse. A restraining element is utilized to secure the elastic element and prevent the elastic element from applying force on the conduction element in an installation state of the reflowable thermal fuse. Application of an activating current through the restraining element causes the restraining element to break and thereby release the elastic element and place the reflowable thermal fuse in the activated state.

摘要翻译： 可回流的热熔丝包括设置在壳体内的具有第一和第二端的导电元件。 可回流热保险丝还包括设置在壳体内的弹性元件，并且适于在可回流热熔丝的激活状态下对导电元件施加力。 使用限制元件来固定弹性元件，并防止弹性元件在可回流热熔丝的安装状态下对导电元件施加力。 施加激活电流通过约束元件使得约束元件断裂，从而释放弹性元件并将可回流热熔丝置于激活状态。

公开(公告)号：US08289122B2

公开(公告)日：2012-10-16

申请号：US12383560

申请日：2009-03-24

申请人： Martyn A. Matthiesen ,  Jianhua Chen ,  Anthony Vranicar

发明人： Martyn A. Matthiesen ,  Jianhua Chen ,  Anthony Vranicar

IPC分类号： H01H85/04 ,  H01H85/02

CPC分类号： H01H37/761 ,  H01H2037/046 ,  H01H2037/763 ,  Y10T29/49107

摘要： A reflowable thermal fuse includes a positive-temperature-coefficient (PTC) device that defines a first end and a second end, a conduction element that defines a first end and a second end in electrical communication with the second end of the PTC device, and a restraining element that defines a first end in electrical communication with the first end of the PTC device and a second end, in electrical communication with a second end of the conduction element. The restraining element is adapted to prevent the conduction element from coming out of electrical communication with the PTC device in an installation state of the thermal fuse. During a fault condition, heat applied to the thermal fuse diverts current flowing between the first end of the PTC device and the second end of the conduction element to the restraining element, causing the restraining element to release the conduction element and activate the fuse.

摘要翻译： 可回流热熔丝包括限定第一端和第二端的正温度系数（PTC）装置，限定与PTC装置的第二端电连通的第一端和第二端的导电元件，以及 限定元件，其限定与PTC装置的第一端电连通的第一端和与导电元件的第二端电连通的第二端。 限制元件适于在热熔丝的安装状态下防止导电元件脱离与PTC器件的电连通。 在故障状态期间，施加到热熔丝的热量将在PTC器件的第一端和导电元件的第二端之间流动的电流转移到限制元件，使得限制元件释放导电元件并激活熔丝。

公开(公告)号：US06787095B2

公开(公告)日：2004-09-07

申请号：US10179646

申请日：2002-06-24

申请人： Lixiao Wang ,  Jianhua Chen

发明人： Lixiao Wang ,  Jianhua Chen

IPC分类号： B29C4700

CPC分类号： A61M25/1029 ,  A61L29/06 ,  A61M2025/1031 ,  C08K3/38 ,  C08L67/02 ,  Y10T428/1352 ,  Y10T428/139 ,  C08L2666/02

摘要： A processing technique and a composition which allow compositions of PBT polymers or copolymers to be formed into blow molded articles, especially medical balloons such as dilatation or stent placement balloons, from extruded tubular parisons. The process includes a longitudinal stretch step run at a temperature below the Tg of the polymeric material and a radial expansion step run at a temperature above the Tg of the polymeric material. During the longitudinal stretch step, the tubing is subjected to high internal pressure. In the composition a small amount of boric acid is added to the polybutylene terephthalate in a melt blend to give a formulation which has reduced crystallinity after extrusion and which can more readily fashioned into high strength blow molded articles than PBT by itself. Articles, which may be formed using the invention include medical device balloon articles in which the polymer consists essentially of PBT optionally blended with boric acid.

摘要翻译： 一种加工技术和组合物，其允许PBT聚合物或共聚物的组合物从挤出的管状型坯形成吹塑制品，特别是医疗气囊如膨胀或支架放置气球。 该方法包括在低于聚合物材料的Tg的温度下运行的纵向拉伸步骤和在高于聚合物材料的Tg的温度下运行的径向膨胀步骤。 在纵向拉伸步骤期间，管道受到高的内部压力。 在组合物中，在熔融共混物中将少量硼酸加入到聚对苯二甲酸丁二醇酯中，得到挤出后结晶度降低且比PBT本身更容易形成高强度吹塑制品的制剂。 可以使用本发明形成的制品包括其中聚合物基本上由PBT任选与硼酸共混的医疗装置球囊制品。

公开(公告)号：US20130286701A1

公开(公告)日：2013-10-31

申请号：US13456106

申请日：2012-04-25

申请人： Kaochi Im ,  Kedar V. Bhatawadekar ,  Jianhua Chen ,  Matthew P. Galla ,  Patrick J. Hibbs

发明人： Kaochi Im ,  Kedar V. Bhatawadekar ,  Jianhua Chen ,  Matthew P. Galla ,  Patrick J. Hibbs

IPC分类号： H02M7/06

CPC分类号： H02J9/005

摘要： A controller circuit for activating and deactivating an electrical power converter that provides power to a device includes power input terminals on a primary side, and power output terminals on a secondary side, which are configured to provide power to the device. The controller circuit includes a detection circuit configured to determine whether the device is connected and, if connected, causes power to be routed to the electrical power converter to activate the electrical power converter. When the device is not detected, the electrical power converter is deactivated until the device is reconnected.

公开(公告)号：US08417470B2

公开(公告)日：2013-04-09

申请号：US12808269

申请日：2008-05-09

申请人： Jianhua Chen ,  Fengshi Li ,  Yana Zhu

发明人： Jianhua Chen ,  Fengshi Li ,  Yana Zhu

IPC分类号： G01F1/00

CPC分类号： H04Q9/14 ,  G08C19/28

摘要： A security pulse generator and methods thereof are applied in fuel dispensers. The fuel dispenser includes a flow measuring transducer and a control main board on which there is a measuring microprocessor on the control main board. The security pulse generator includes: a pulse signal generating component, which generates a corresponding pulse signal according to the rotation of the flow measuring transducer; an encoding microprocessor, which receives and transduces the pulse signal, transmits it to the control main board, and meanwhile encodes the output pulse signal; a measuring microprocessor, which receives and decodes output pulse number encoded data from the encoding microprocessor and transforms it to the output pulse number after decoding it, then compares it to the pulse number of the control main board to determine if there is suspecting frauds in the fueling process.

摘要翻译： 安全脉冲发生器及其方法应用于燃料分配器中。 燃料分配器包括流量测量传感器和控制主板，控制主板上有一个测量微处理器。 安全脉冲发生器包括：脉冲信号产生部件，其根据流量测量传感器的旋转产生对应的脉冲信号; 接收并转换脉冲信号的编码微处理器将其发送到控制主板，同时编码输出脉冲信号; 测量微处理器，其从编码微处理器接收并解码输出脉冲数编码数据，并在解码之后将其转换为输出脉冲数，然后将其与控制主板的脉冲数进行比较，以确定是否存在可疑的欺诈 加油过程。