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18 条记录 (耗时 0.025 秒)

    Tunable evanescent-mode cavity filter
    1.
    发明授权
    Tunable evanescent-mode cavity filter 有权
    可调ev逝模式滤波器

    公开(公告)号：US09024709B2

    公开(公告)日：2015-05-05

    申请号：US13122370

    申请日：2009-10-03

    申请人： Himanshu Joshi ,  Hjalti Hreinn Sigmarsson ,  Dimitrios Peroulis ,  William J. Chappell ,  Xiaoguang Liu

    发明人： Himanshu Joshi ,  Hjalti Hreinn Sigmarsson ,  Dimitrios Peroulis ,  William J. Chappell ,  Xiaoguang Liu

    IPC分类号： H01P1/219 ,  H01P7/06 ,  H01P11/00

    CPC分类号： H01P1/219 ,  H01P7/06 ,  H01P11/007

    摘要： A tunable filter having an electronically tunable center frequency and dynamic bandwidth control over a large tuning range. High-Q continuously tunable evanescent-mode cavity resonators and filters using reliable RF MEMS actuators. One embodiment is a 3.4-6.2 GHz (1.8:1 tuning ratio) continuously tunable electrostatic MEMS resonator with quality factor of 460-530, with a volume of 18×30×4 mm including the actuation scheme and biasing lines. A tunable resonators is also disclosed with a 2.8:1 (5.0-1.9 GHz) tuning ratio, and Q of 300-650.

    摘要翻译： 一种可调谐滤波器，具有电子可调谐的中心频率和大调谐范围内的动态带宽控制。 使用可靠的RF MEMS执行器的高Q连续可调ev逝腔谐振器和滤波器。 一个实施例是质量因子为460-530的3.4-6.2GHz（1.8：1调谐比）连续可调静电MEMS谐振器，体积为18×30×4mm，包括致动方案和偏置线。 还公开了可调谐谐振器，具有2.8:1（5.0-1.9GHz）调谐比，Q为300-650。

    TUNABLE EVANESCENT-MODE CAVITY FILTER
    2.
    发明申请
    TUNABLE EVANESCENT-MODE CAVITY FILTER 有权
    可变模式空气过滤器

    公开(公告)号：US20110241802A1

    公开(公告)日：2011-10-06

    申请号：US13122370

    申请日：2009-10-03

    申请人： Himanshu Joshi ,  Hjalti Hreinn Sigmarsson ,  Dimitrios Peroulis ,  William J. Chappell ,  Xiaoguang Liu

    发明人： Himanshu Joshi ,  Hjalti Hreinn Sigmarsson ,  Dimitrios Peroulis ,  William J. Chappell ,  Xiaoguang Liu

    IPC分类号： H01P1/207

    CPC分类号： H01P1/219 ,  H01P7/06 ,  H01P11/007

    摘要： A tunable filter having an electronically tunable center frequency and dynamic bandwidth control over a large tuning range. High-Q continuously tunable evanescent-mode cavity resonators and filters using reliable RF MEMS actuators. One embodiment is a 3.4-6.2 GHz (1.8:1 tuning ratio) continuously tunable electrostatic MEMS resonator with quality factor of 460-530, with a volume of 18×30×4 mm including the actuation scheme and biasing lines. A tunable resonators is also disclosed with a 2.8:1 (5.0-1.9 GHz) tuning ratio, and Q of 300-650.

    摘要翻译： 一种可调谐滤波器，具有电子可调谐的中心频率和大调谐范围内的动态带宽控制。 使用可靠的RF MEMS执行器的高Q连续可调ev逝腔谐振器和滤波器。 一个实施例是质量因子为460-530的3.4-6.2GHz（1.8：1调谐比）连续可调静电MEMS谐振器，体积为18×30×4mm，包括致动方案和偏置线。 还公开了可调谐谐振器，具有2.8:1（5.0-1.9GHz）调谐比，Q为300-650。

    Implantable medical device charging
    7.
    发明授权
    Implantable medical device charging 失效
    植入式医疗器械充电

    公开(公告)号：US08706256B2

    公开(公告)日：2014-04-22

    申请号：US14056076

    申请日：2013-10-17

    申请人： Himanshu Joshi

    发明人： Himanshu Joshi

    IPC分类号： A61N1/00

    CPC分类号： A61N1/3787 ,  A61N1/37223

    摘要： A particular method of providing power to an implantable medical device includes providing a first signal to a primary coil that is inductively coupled to a secondary coil of an implantable medical device. The method also include determining a first alignment difference between a voltage corresponding to the first signal and at least one of a current corresponding to the first signal and a component voltage at a component of a primary coil circuit. The method further includes determining a frequency sweep range based on the first alignment difference. The method also includes performing a frequency sweep over the frequency sweep range.

    摘要翻译： 向可植入医疗设备提供电力的特定方法包括向感应耦合到可植入医疗装置的次级线圈的初级线圈提供第一信号。 该方法还包括确定对应于第一信号的电压与对应于第一信号的电流和初级线圈电路的分量之间的分量电压中的至少一个之间的第一对准差。 该方法还包括基于第一对准差确定频率扫描范围。 该方法还包括在频率扫描范围上执行频率扫描。

    Method for refinery foulant deposit characterization
    8.
    发明授权
    Method for refinery foulant deposit characterization 有权
    炼油厂污垢沉积特性的方法

    公开(公告)号：US07708864B2

    公开(公告)日：2010-05-04

    申请号：US11173979

    申请日：2005-07-01

    申请人： Glen Brons ,  Leo D. Brown ,  Himanshu Joshi ,  Raymond J. Kennedy ,  Tom Bruno ,  Thomas M. Rudy

    发明人： Glen Brons ,  Leo D. Brown ,  Himanshu Joshi ,  Raymond J. Kennedy ,  Tom Bruno ,  Thomas M. Rudy

    IPC分类号： C10B43/14

    CPC分类号： G01N17/008 ,  G01N33/28 ,  Y10S436/805 ,  Y10S436/908 ,  Y10T436/24

    摘要： The present invention is a method to identify a refinery solid foulant of unknown composition including the following steps: obtaining a solid foulant sample, removing trapped feed from the sample with a solvent to obtain an insoluble sample, scanning the insoluble sample with a scanning electron microscope and energy dispersive x-rays, performing a thermal gravimetric analysis including an ash test on the insoluble sample to determine the presence of polymer, coke and inorganic elements, performing an elemental analysis on the insoluble sample for the elements carbon, hydrogen, sulfur, nitrogen, halogens, and metals, performing an optical microscopy on the insoluble sample to determine the presence of wax, asphaltenes, anisotropic coke and isotropic coke, and identifying the solid foulant.

    摘要翻译： 本发明是一种识别未知组合物的炼厂固体污垢的方法，包括以下步骤：获得固体污垢样品，用溶剂从样品中除去捕获的饲料以获得不溶性样品，用扫描电子显微镜扫描不溶性样品 和能量色散X射线，进行热重分析，包括对不溶性样品进行灰分测试，以确定聚合物，焦炭和无机元素的存在，对不溶性样品进行碳，氢，硫，氮的元素分析 ，卤素和金属，对不溶性样品进行光学显微镜检查，以确定蜡，沥青质，各向异性焦炭和各向同性焦炭的存在，并鉴定固体污垢。

    Implantable medical device with backscatter signal based communication
    9.
    发明授权
    Implantable medical device with backscatter signal based communication 有权
    具有背向散射信号的植入式医疗设备通信

    公开(公告)号：US09343923B2

    公开(公告)日：2016-05-17

    申请号：US13593178

    申请日：2012-08-23

    申请人： Himanshu Joshi

    发明人： Himanshu Joshi

    IPC分类号： H02J7/00 ,  H02J7/02 ,  A61N1/372 ,  H02J5/00 ,  A61N1/378

    CPC分类号： H02J50/80 ,  A61N1/37229 ,  A61N1/3727 ,  A61N1/3787 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/90

    摘要： An implantable medical device is disclosed that includes a charging coil configured to inductively couple to a first external coil to receive a charging signal to charge a charge storage element of the implantable medical device. The implantable medical device also includes a circuit coupled to the charging coil. The circuit includes a circuit component that, in response to the charging signal, generates a backscatter signal. The implantable medical device also includes a communication coil orthogonal to the charging coil and coupled to the circuit component. The communication coil is configured to inductively couple to a second external coil to communicate the backscatter signal to the second external coil.

    摘要翻译： 公开了一种植入式医疗装置，其包括充电线圈，其被配置为感应耦合到第一外部线圈以接收充电信号以对可植入医疗装置的电荷存储元件充电。 可植入医疗装置还包括耦合到充电线圈的电路。 该电路包括响应于充电信号产生反向散射信号的电路部件。 可植入医疗装置还包括与充电线圈正交并耦合到电路部件的通信线圈。 通信线圈被配置为感应耦合到第二外部线圈以将后向散射信号传送到第二外部线圈。

    Implantable medical device charging
    10.
    发明授权
    Implantable medical device charging 失效
    植入式医疗器械充电

    公开(公告)号：US08594804B2

    公开(公告)日：2013-11-26

    申请号：US13096805

    申请日：2011-04-28

    申请人： Himanshu Joshi

    发明人： Himanshu Joshi

    IPC分类号： A61N1/00

    CPC分类号： A61N1/3787 ,  A61N1/37223

    摘要： A particular method of providing power to an implantable medical device includes providing a first signal to a primary coil that is inductively coupled to a secondary coil of an implantable medical device. The method also include determining a first alignment difference between a voltage corresponding to the first signal and at least one of a current corresponding to the first signal and a component voltage at a component of a primary coil circuit. The method further includes determining a frequency sweep range based on the first alignment difference. The method also includes performing a frequency sweep over the frequency sweep range.

    摘要翻译： 向可植入医疗设备提供电力的特定方法包括向感应耦合到可植入医疗设备的次级线圈的初级线圈提供第一信号。 该方法还包括确定对应于第一信号的电压与对应于第一信号的电流和初级线圈电路的分量之间的分量电压中的至少一个之间的第一对准差。 该方法还包括基于第一对准差确定频率扫描范围。 该方法还包括在频率扫描范围上执行频率扫描。