Acoustically coupled antenna
    31.
    发明授权
    Acoustically coupled antenna 失效
    声耦合天线

    公开(公告)号:US5034753A

    公开(公告)日:1991-07-23

    申请号:US359517

    申请日:1989-06-01

    申请人: Robert J. Weber

    发明人: Robert J. Weber

    CPC分类号: H01Q21/0006 H01Q1/38

    摘要: An acoustically coupled antenna which can be configured as a transmitting or receiving antenna for coupling between an electrical circuit (transmitter or receiver) and an electromagnetic propagating medium such as the atmosphere. The antenna is a two port device in which one port is connected to the electrical circuit and the second port includes a transducer which interfaces (radiates or receives) electromagnetic energy with the propagating medium. The ports are acoustically coupled to each other by forming the device as a stacked crystal filter with three conductive electrodes separated by two piezoelectric resonating elements. The first port comprises two of the electrodes separated by one of the piezoelectric elements, and the second port shares the electrode separating the two piezoelectric elements, and further includes the second piezoelectric element and the final electrode. The electrical signals in the bandwidth of the antenna at the two ports are acoustically coupled by the coupled resonators of the stacked crystal filter for translating energy from one port to the other while providing electromagnetic isolation by virtue of the acoustic coupling.

    摘要翻译: 声耦合天线,其可以被配置为用于在电路(发射机或接收机)和电磁传播介质(例如大气)之间耦合的发射或接收天线。 天线是两端口设备,其中一个端口连接到电路,第二端口包括将电磁能与传播介质接合(辐射或接收)的换能器。 通过将该器件形成为具有由两个压电谐振元件隔开的三个导电电极的堆叠晶体滤波器而使端口彼此声学耦合。 第一端口包括由一个压电元件分离的两个电极,并且第二端口共享分离两个压电元件的电极,并且还包括第二压电元件和最终电极。 在两个端口处的天线的带宽中的电信号被层叠晶体滤波器的耦合谐振器声耦合,用于将能量从一个端口转换到另一个端口,同时通过声耦合提供电磁隔离。

    Advanced drive circuitry for Sagnac interferometric switch utilizing faraday rotation
    32.
    发明授权
    Advanced drive circuitry for Sagnac interferometric switch utilizing faraday rotation 有权
    用于采用法拉第旋转的Sagnac干涉式开关的先进驱动电路

    公开(公告)号:US09110317B1

    公开(公告)日:2015-08-18

    申请号:US13440355

    申请日:2012-04-05

    IPC分类号: G02F1/095 G02F1/313

    摘要: A pre-pulsed magnetic field generation circuit for a fiber-based, magneto-optic (MO) optical modulator or switch for use in an interferometer is provided. The pre-pulsed magnetic field is used to control the amount of rotation in the state of polarization (SOP), and therefore, the ON-OFF extinction ratio. The circuit includes a pair of amplifier circuits that control the current through a coil to generate the pre-pulsed magnetic field. One amplifier controls a magnitude of a steady state portion of the magnetic field, while the other controls both the amplitude and duration of a pre-pulse portion of the magnetic field.

    摘要翻译: 提供了用于干涉仪中的用于光纤的磁光(MO)光调制器或开关的预脉冲磁场产生电路。 预脉冲磁场用于控制偏振状态(SOP)中的旋转量,因此控制ON-OFF消光比。 该电路包括一对放大器电路,其控制通过线圈的电流以产生预脉冲磁场。 一个放大器控制磁场的稳态部分的大小,而另一个控制磁场的预脉冲部分的幅度和持续时间。

    Low profile metal-surface mounted RFID tag antenna
    33.
    发明授权
    Low profile metal-surface mounted RFID tag antenna 有权
    薄型金属表面贴装RFID标签天线

    公开(公告)号:US08169322B1

    公开(公告)日:2012-05-01

    申请号:US12266913

    申请日:2008-11-07

    IPC分类号: G08B13/14

    摘要: A passive RFID tag suitable for attachment to an electrically conductive surface is provided. The passive RFID tag includes a dielectric substrate, an RFID chip for storing data, and an RFID antenna structure operatively connected to the RFID chip wherein the RFID antenna structure comprises a slotted inverted L-shape. A method of manufacturing a passive RFID tag includes forming an antenna structure on a conductive layer, the antenna structure comprising a slotted inverted L-shape. The method further includes operatively connecting an RFID chip with the antenna structure. A method associated with a passive RFID tag includes providing a passive RFID tag. The passive RFID tag includes a dielectric substrate, an RFID chip for storing data, and an RFID antenna structure operatively connected to the RFID chip wherein the RFID antenna structure comprises a slotted inverted L-shape. The method further includes operatively connecting the passive RFID tag to a conductive surface.

    摘要翻译: 提供了适用于连接到导电表面的无源RFID标签。 无源RFID标签包括电介质基板,用于存储数据的RFID芯片和可操作地连接到RFID芯片的RFID天线结构,其中RFID天线结构包括开槽的倒L形。 一种制造无源RFID标签的方法包括在导电层上形成天线结构,该天线结构包括开槽倒L形。 该方法还包括将RFID芯片与天线结构可操作地连接。 与无源RFID标签相关联的方法包括提供无源RFID标签。 无源RFID标签包括电介质基板,用于存储数据的RFID芯片和可操作地连接到RFID芯片的RFID天线结构,其中RFID天线结构包括开槽的倒L形。 该方法还包括将无源RFID标签可操作地连接到导电表面。

    All fiber magneto-optic on-off switch for networking applications
    34.
    发明授权
    All fiber magneto-optic on-off switch for networking applications 有权
    用于网络应用的所有光纤开关开关

    公开(公告)号:US07916982B1

    公开(公告)日:2011-03-29

    申请号:US12112266

    申请日:2008-04-30

    IPC分类号: G02B6/12 G02F1/095

    摘要: An integrated fiber optic switch based on the magneto-optic effect of magnetic materials suitable for optical fiber networks is presented. The switch is based on the Faraday Effect exhibited by magneto-optic materials. The all-fiber magneto-optic switch has a beam splitter at the input that splits an incoming signal into orthogonal polarized paths. Each path has at least one magneto-optic Faraday rotator (MOFR) controlled by a field. When the field is present, the polarization of the optical beam changes, thereby turning the switch on or off. A beam coupler couples the orthogonal polarized paths at the output of the all-fiber magneto-optic switch. The switch is constructed in the Mach-Zehnder configuration, utilizing two 3 dB couplers, isolators and MOFRs fabricated on silicon-on-insulator.

    摘要翻译: 提出了一种基于适用于光纤网络的磁性材料的磁光效应的集成光纤开关。 该开关基于磁光材料展示的法拉第效应。 全光纤光电开关在输入处具有分束器,其将输入信号分离成正交偏振路径。 每个路径具有由场控制的至少一个磁光法拉第旋转器(MOFR)。 当场存在时,光束的偏振改变,从而打开或关闭开关。 光束耦合器在全光纤光电开关的输出处耦合正交偏振路径。 该开关采用马赫 - 曾德尔(Mach-Zehnder)结构,采用两个3 dB耦合器,隔离器和绝缘体上制造的MOFR。

    Individual descriptive record system
    35.
    发明授权
    Individual descriptive record system 失效
    个人描述记录系统

    公开(公告)号:US5499626A

    公开(公告)日:1996-03-19

    申请号:US263651

    申请日:1994-06-20

    IPC分类号: A01K11/00 G06F159/00

    CPC分类号: A01K11/006

    摘要: An electronic individual descriptive record system for storing the individual's identification and descriptive data on a programmable electronic identification and data storage module carried with the individual so that the individual's identification, the individual's descriptive data and the individual itself become one. The system includes an implantable programmable electronic identification and data storage module carried by the individual, and a reading and recording device which communicates with the electronic identification and data storage module.

    摘要翻译: 一种电子单独描述记录系统,用于将个人的识别和描述数据存储在与个人携带的可编程电子识别和数据存储模块上,使得个人的识别,个人的描述数据和个体本身变为一个。 该系统包括由个体携带的可植入式可编程电子识别和数据存储模块,以及与电子识别和数据存储模块通信的读取和记录装置。

    Optical modulator device using a thin film resonator
    36.
    发明授权
    Optical modulator device using a thin film resonator 失效
    使用薄膜谐振器的光调制器件

    公开(公告)号:US5465171A

    公开(公告)日:1995-11-07

    申请号:US334674

    申请日:1994-11-04

    摘要: An optical modulator device comprised of a semiconductor laser acoustically coupled to a thin film resonator is disclosed herein. The thin film resonator includes a piezoelectric crystal layer having first and second opposing surfaces, with the first opposing surface being in contact with a metallic electrode. The semiconductor laser is interposed between an acoustically reflective surface and the second surface of the thin film resonator. In a preferred implementation the acoustically reflective surface is defined by a submount underlying a substrate upon which is mounted the semiconductor laser.A frequency modulator exhibiting an improved modulation index may be achieved by integrating a superlattice structure within the active region of the semiconductor laser. The superlattice structure will preferably include a cascaded stack of stacked pairs, each stack pair constituent being of a thickness equivalent to a multiple of one-half of the wavelength of optical emission produced by the semiconductor laser of the superlattice.The optical device may also be implemented in the form of a phase modulator disposed to provide a phase-modulated optical output of predetermined frequency. Phase modulation is produced in the absence of appreciable frequency modulation by configuring the thin film resonator to be of a longitudinal length less than that of the semiconductor laser.

    摘要翻译: 本文公开了由声耦合到薄膜谐振器的半导体激光器构成的光调制器装置。 薄膜谐振器包括具有第一和第二相对表面的压电晶体层,第一相对表面与金属电极接触。 半导体激光器介于声反射表面和薄膜谐振器的第二表面之间。 在优选实施例中,声反射表面由安装半导体激光器的衬底下方的底座限定。 可以通过在半导体激光器的有源区域内集成超晶格结构来实现具有改进的调制指数的频率调制器。 超晶格结构将优选地包括堆叠对的级联堆叠,每个叠层组分的厚度等于由超晶格的半导体激光器产生的光发射的波长的一半的倍数。 光学器件还可以以相位调制器的形式实现,该相位调制器设置成提供预定频率的相位调制光输出。 在没有明显的频率调制的情况下通过将薄膜谐振器配置成比半导体激光器的纵向长度小的纵向长度来产生相位调制。

    Livestock record system
    37.
    发明授权
    Livestock record system 失效
    家畜记录系统

    公开(公告)号:US5322034A

    公开(公告)日:1994-06-21

    申请号:US877461

    申请日:1992-05-01

    IPC分类号: A01K11/00

    CPC分类号: A01K11/006

    摘要: An electronic livestock record system stores the individual animal's identification and performance data on a programmable electronic identification and data storage module carried with the animal so that the animal's identification, the animal's performance data and the animal itself become one. The system includes a programmable electronic identification and data storage module carried by the animal, and a reading and recording device which communicates with the electronic identification and data storage module.

    摘要翻译: 电子牲畜记录系统将动物的识别和性能数据存储在与动物携带的可编程电子识别和数据存储模块上,使得动物的身份识别,动物的性能数据和动物本身成为一个。 该系统包括由动物携带的可编程电子识别和数据存储模块,以及与电子识别和数据存储模块通信的读取和记录装置。

    High power semiconductor device with integral heat sink
    38.
    发明授权
    High power semiconductor device with integral heat sink 失效
    具有集成散热器的大功率半导体器件

    公开(公告)号:US5057908A

    公开(公告)日:1991-10-15

    申请号:US550863

    申请日:1990-07-10

    申请人: Robert J. Weber

    发明人: Robert J. Weber

    摘要: A high power semiconductor device with integral heat sink capable of accommodating substantial heat flux on the order of one kw per cm.sup.2. The integral heat sink is formed on the active surface of the semiconductor and utilizes an AlN thin film of high purity to provide a low thermal impedance heat conductor for removing heat directly from the active semiconductor surface. A microchannel heat sink is formed on the A1N thin film and has a source of cooling fluid flowing through the microchannel heat sink for conducting heat away from the sink. The result is the ability to conduct large heat fluxes away from the intimately contacted heat generating semiconductor surface to the cooling fluid in the microchannel heat sink and thus operate the semiconductor under substantially higher power than has been practical heretofore in a device of such simplicity.

    Compact reduced parasitic resonant frequency pulsed power source at
microwave frequencies
    39.
    发明授权
    Compact reduced parasitic resonant frequency pulsed power source at microwave frequencies 失效
    在微波频率下紧凑减小寄生谐振频率脉冲电源

    公开(公告)号:US4896205A

    公开(公告)日:1990-01-23

    申请号:US317146

    申请日:1989-02-28

    申请人: Robert J. Weber

    发明人: Robert J. Weber

    IPC分类号: H01L25/07

    摘要: A Compact Reduced Parasitic Resonant Frequency Pulsed Power Source at Microwave Frequencies is disclosed which uses a series of stacked IMPATT diodes with thick metallic heat sinks interposed between each of the IMPATT diodes with the effective heat sink of each heat sink being roughly equivalent to the diode radius in length. The effective heat sink length is matched through the disclosed analysis to the effective heat sink of the base heat sink which is located at the bottom of the stack of IMPATT diodes. The diodes are operated in a pulsed fashion and the effective heat sink length is matched to the effective heat sink of the base heat sink that the temperature of the stacked IMPATT diodes track together in time.

    摘要翻译: 公开了一种微波频率下的紧凑型减小型寄生频率脉冲电源,其使用一系列堆叠的IMPATT二极管,其具有插入每个IMPATT二极管之间的厚金属散热器,每个散热器的有效散热器大致等于二极管半径 长度。 通过所公开的分析,有效的散热器长度与位于堆叠的IMPATT二极管底部的基座散热器的有效散热器相匹配。 二极管以脉冲方式工作,有效的散热器长度与基板散热器的有效散热器相匹配,使堆叠的IMPATT二极管的温度及时跟踪在一起。

    Novel polymers and crosslinked compositions made therefrom
    40.
    发明授权
    Novel polymers and crosslinked compositions made therefrom 失效
    由其制备的新型聚合物和交联组合物

    公开(公告)号:US4680361A

    公开(公告)日:1987-07-14

    申请号:US831199

    申请日:1986-02-20

    CPC分类号: C08F20/28 C08F8/00

    摘要: This invention is directed in general to polymers (including oligomers) that contain carboxyl-terminated lactone acrylates, to a process for their preparation, and to coating, ink, adhesive, and sealant compositions (including the cured coatings, inks, adhesives, and sealants) that are obtained by crosslinking the above compositions by various means. The cured compositions, which are, for example, high-quality industrial finishes, are made by incorporation of various conventional crosslinking agents and other normally-used formulating ingredients with the polymeric compositions of the invention.

    摘要翻译: 本发明一般涉及包含羧基封端的内酯丙烯酸酯,其制备方法和涂料,油墨,粘合剂和密封剂组合物(包括固化的涂料,油墨,粘合剂和密封剂)的聚合物(包括低聚物) ),其通过各种方式交联上述组合物而获得。 固化的组合物,例如高品质的工业涂饰,是通过将各种常规交联剂和其它通常使用的配制成分与本发明的聚合物组合物结合而制成的。