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112 条记录 (耗时 0.013 秒)

    Multidomain acoustic wave devices
    84.
    发明授权
    Multidomain acoustic wave devices 有权
    多域声波器件

    公开(公告)号：US08344588B2

    公开(公告)日：2013-01-01

    申请号：US12440632

    申请日：2007-09-11

    申请人： Igor Ostrovskii ,  Andriy Nadtochiy

    发明人： Igor Ostrovskii ,  Andriy Nadtochiy

    IPC分类号： H01L41/08

    CPC分类号： H03H9/562 ,  H03H9/30 ,  H03H9/568 ,  H04R17/00

    摘要： A multidomain plate acoustic wave device is provided having one or more single piezoelectric crystalline plates with differently polarized ferroelectric domains, where the domains have diverse directions of their axes of polarization. The device may consist of a multidomain plate acoustic wave transducer, a multidomain plate acoustic wave delay line, a multidomain plate acoustic wave rf filter, and any combination thereof. The differently polarized ferroelectric domains may comprise a collection of inversely or differently poled ferroelectric domains within a single piezoelectric medium. The medium may be any crystalline or ceramic plate with non-zero piezoelectric properties, in which the domains are created and embedded. In varying embodiments, the device includes electrodes oriented to generate an external rf field in various, respective directions, including in a direction normal to a basal plane of the device, or in a direction parallel to a length or a width of the device.

    摘要翻译： 提供了具有一个或多个具有不同极化铁电畴的单个压电晶体板的多畴平板声波器件，其中畴具有其偏振轴的不同方向。 该装置可以由多域平板声波传感器，多域平板声波延迟线，多域平板声波rf滤波器及其任何组合组成。 不同极化的铁电畴可以包括在单个压电介质内的反向或不同极化的铁电畴的集合。 该介质可以是具有非零压电特性的任何结晶或陶瓷板，其中产生和嵌入这些畴。 在不同的实施例中，该装置包括定向成在各种相应方向上产生外部射频场的电极，包括在垂直于装置的基底平面的方向上，或在平行于装置的长度或宽度的方向上。

    Monolithically integrated switchable circuits with MEMS
    85.
    发明申请
    Monolithically integrated switchable circuits with MEMS 有权
    具有MEMS的单片集成可切换电路

    公开(公告)号：US20060170514A1

    公开(公告)日：2006-08-03

    申请号：US11046604

    申请日：2005-01-28

    申请人： Jeffrey Yang ,  Matt Nishimoto ,  Gregory Rowan ,  Kelly Tornquist ,  Patty Chang-Chien

    发明人： Jeffrey Yang ,  Matt Nishimoto ,  Gregory Rowan ,  Kelly Tornquist ,  Patty Chang-Chien

    IPC分类号： H03H7/38

    CPC分类号： H01P5/04 ,  G11C23/00 ,  H03H7/18 ,  H03H9/30 ,  H03H11/26

    摘要： A reconfigurable circuit and a related method for its use, the circuit including multiple microelectromechanical systems (MEMS) switches connected between selected points in the circuit. The MEMS switches are controlled to select a desired circuit condition, such as an impedance matching condition, and then the switch conditions may be fused permanently. In the context of an impedance matching circuit, the MEMS switches may be used to optimize matching after circuit fabrication or after packaging, thereby allowing optimization even after potentially performance changing events.

    摘要翻译： 可重构电路及其使用的相关方法，该电路包括连接在电路中的选定点之间的多个微机电系统（MEMS）开关。 控制MEMS开关以选择期望的电路条件，例如阻抗匹配条件，然后开关条件可以永久融合。 在阻抗匹配电路的上下文中，MEMS开关可用于优化电路制造之后或封装之后的匹配，从而即使在潜在的性能改变事件之后也允许优化。

    Ultrasonic delay line
    86.
    发明授权
    Ultrasonic delay line 失效
    超声波延时线

    公开(公告)号：US4516090A

    公开(公告)日：1985-05-07

    申请号：US484503

    申请日：1983-04-13

    申请人： Toru Kambara ,  Michihiko Uemura ,  Takeya Iwanaga

    发明人： Toru Kambara ,  Michihiko Uemura ,  Takeya Iwanaga

    IPC分类号： H03H9/10 ,  H03H9/30 ,  H03H9/36 ,  H03H9/25

    CPC分类号： H03H9/36 ,  H03H9/30

    摘要： An ultrasonic delay line of a construction which is made up of: a casing having therein a delay medium accommodating section to accommodate therein a delay medium and a terminal accommodating section to accommodate therein planar metal terminals; and a cover to tightly close the casing, in which the terminal accommodating section has a plurality of projections to fix the planar metal terminals, a partition frame is provided between the terminal accommodating section and the delay medium accommodating section to separate both accommodating sections, the delay medium is accommodating in the delay medium accommodating section, the base part of the planar metal terminal is positioned and housed by means of projections in the terminal accommodating section, and one end of a lead wire, the other end of which has been connected with a transducer provided on the said surface of the delay medium, is connected with the base part of the planar metal terminal.

    摘要翻译： 一种构造的超声波延迟线，其由以下构成的壳体构成：具有延伸介质容纳部的壳体，用于容纳延迟介质和容纳在其中的平面金属端子的端子容纳部; 以及用于紧固壳体的盖子，其中端子容纳部分具有用于固定平面金属端子的多个突起，在端子容纳部分和延迟介质容纳部分之间设置有分隔架，以分离两个容纳部分， 延迟介质容纳在延迟介质容纳部分中，平面金属端子的基部通过凸起定位并容纳在端子容纳部分中，并且引线的另一端与 设置在延迟介质的所述表面上的换能器与平面金属端子的基部连接。

    Echo annexation device
    87.
    发明授权
    Echo annexation device 失效
    回声吞并装置

    公开(公告)号：US4112396A

    公开(公告)日：1978-09-05

    申请号：US654715

    申请日：1976-02-02

    申请人： Chuzo Honda

    发明人： Chuzo Honda

    IPC分类号： G10K15/10 ,  H03H9/30 ,  G10H1/02 ,  H03H9/26

    CPC分类号： H03H9/30 ,  G10K15/10 ,  Y10S84/26

    摘要： The present invention is related to devices for annexing an echo resembling natural reverberation in the course of sound recording, in which a line or lines of coil spring with a portion or portions protruded axially at a right angle are spanned between the drive-transducer and the pickup-transducer.

    摘要翻译： 本发明涉及用于在声音记录过程中附加类似自然混响的回波的装置，其中具有部分或部分以直角轴向突出的螺旋弹簧的线或线被跨越在驱动换能器和 拾音传感器。

    Ultrasonic delay material
    88.
    发明授权
    Ultrasonic delay material 失效
    超声波延迟材料

    公开(公告)号：US3961289A

    公开(公告)日：1976-06-01

    申请号：US502187

    申请日：1974-08-30

    申请人： Yoshihiro Kino

    发明人： Yoshihiro Kino

    IPC分类号： H03H9/30 ,  H03H9/26

    CPC分类号： H03H9/30

    摘要： A spinel-type oxide exhibiting a cooperative Jahn-Teller effect shows an extraordinary reduction of sound velocity therethrough at temperatures near the Jahn-Teller phase transition temperature thereof. The sound velocity and effective temperature range can be varied over wide ranges by using a solid solution of such an oxide and another spinel-type oxide not exhibiting the Jahn-Teller effect. NiCr.sub.2 O.sub.4 and ZnCr.sub.2 O.sub.4 are particularly advantageous as the former and latter oxides, respectively.

    摘要翻译： 表现出合作Jahn-Teller效应的尖晶石型氧化物在Jahn-Teller相转变温度附近的温度下显示出非凡的声速降低。 通过使用这种氧化物的固溶体和不具有Jahn-Teller效应的另一种尖晶石型氧化物，声速和有效温度范围可以在宽范围内变化。 NiCr2O4和ZnCr2O4分别作为前者和后一种氧化物是特别有利的。

    Matched MIC delay line transducer using a series array
    90.
    发明授权
    Matched MIC delay line transducer using a series array 失效
    使用串联阵列匹配的MIC延时线传感器

    公开(公告)号：US3893048A

    公开(公告)日：1975-07-01

    申请号：US48629674

    申请日：1974-07-08

    申请人： US ARMY

    发明人： LIEBERMAN STUART I

    IPC分类号： H03H9/125 ,  H03H9/30 ,  H03H9/26 ,  H03H9/32

    CPC分类号： H03H9/125 ,  H03H9/30

    摘要： A transducer for a bulk-mode acoustic delay line comprises a plurality of series-connected transducers and a series inductance deposited at the end of the delay line. The number and configuration of the series-connected transducers is selected such that the sum of the resistive components of their impedances matches the driving impedance. The value of the inductance is chosen to balance the combined capacitive components of the series-connected transducers. Series contact between the electrodes of adjacent transducers is achieved by configuring the ground layer electrode with a finger-like projection which is overlapped by a similar projection in the top layer electrode of the adjacent transducer. The overlapping portions of the electrodes are permitted to make electrical contact with one another by removing the piezoelectric material from the overlap region.

    摘要翻译： 用于体模式声延迟线的换能器包括多个串联连接的换能器和沉积在延迟线末端的串联电感。 选择串联连接的换能器的数量和配置，使得其阻抗的电阻分量之和与驱动阻抗匹配。 选择电感的值来平衡串联连接的换能器的组合电容元件。 相邻换能器的电极之间的串联接触通过用在相邻换能器的顶层电极中与类似突起重叠的手指状突起构成接地层电极来实现。 通过从重叠区域移除压电材料，允许电极的重叠部分彼此电接触。