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    SEQUENTIALLY SWITCHED BULK ACOUSTIC WAVE (BAW) DELAY LINE CIRCULATOR
    2.
    发明申请
    SEQUENTIALLY SWITCHED BULK ACOUSTIC WAVE (BAW) DELAY LINE CIRCULATOR 审中-公开

    公开(公告)号：US20190393924A1

    公开(公告)日：2019-12-26

    申请号：US16167731

    申请日：2018-10-23

    申请人： Qorvo US, Inc.

    发明人： Charles Forrest Campbell

    IPC分类号： H04B1/48 ,  H03H9/30 ,  H03H9/70 ,  H01L27/12 ,  H03H9/205 ,  H01L23/66

    摘要： A sequentially switched bulk acoustic wave (BAW) delay line circulator is disclosed herein. A circulator circuit is implemented with semiconductor components in order to provide a compact, low cost solution for simultaneous signal transmission and reception over a single antenna. For example, the circulator circuit can include a transmit (TX) port, a receive (RX) port, and an antenna port. Antenna switching circuitry selectively couples the antenna port to two or more BAW delay lines, and TX/RX switching circuitry selectively couples the BAW delay lines to the TX port or the RX port. The BAW delay lines function as memory to store TX and RX signals long enough for the antenna switching circuitry, a TX switch, and a RX switch to be switched in sequence and route the TX signals from the TX port to the antenna port and route the RX signals from the antenna port to the RX port.

    Data transmitting and receiving apparatus and method for a digital mobile station
    3.
    发明授权
    Data transmitting and receiving apparatus and method for a digital mobile station 有权
    数字移动台的数据发送和接收装置和方法

    公开(公告)号：US06920331B1

    公开(公告)日：2005-07-19

    申请号：US09531658

    申请日：2000-03-20

    申请人： Seng-Wook Sim ,  Joung-Kyou Park ,  Ki-Sang Jeon ,  Yong-Jin Lee

    发明人： Seng-Wook Sim ,  Joung-Kyou Park ,  Ki-Sang Jeon ,  Yong-Jin Lee

    IPC分类号： H04B1/40 ,  H03H9/30 ,  H03M7/30 ,  H04W4/14 ,  H04W88/02 ,  H04Q7/32 ,  H04Q7/20

    CPC分类号： H04W88/02 ,  H04W4/14

    摘要： Disclosed is an apparatus and method of transmitting and receiving storage data for a digital mobile station, and more particularly a data transmitting and receiving apparatus and method capable of transmitting and receiving a large capacity of data using a short message service. According to the data transmitting method, stored data is read and encoded in a data transmission mode, and inherent distinction data transmission headers are generated according to the completion of the data encoding, the encoded data and the generated data transmission headers are formed into the user data of a short message service, and short message service blocks including the user data of the short message service are transmitted.

    摘要翻译： 公开了一种用于数字移动台的发送和接收存储数据的装置和方法，更具体地说，一种能够使用短消息服务来发送和接收大容量数据的数据发送和接收装置和方法。 根据数据发送方法，以数据传输模式读取和编码存储的数据，并且根据数据编码的完成生成固有的区别数据传输标题，将编码数据和生成的数据传输标题形成为用户 发送短消息服务的数据和包括短消息服务的用户数据的短消息服务块。

    Acoustic wave devices employing surface skimming bulk waves
    4.
    再颁专利
    Acoustic wave devices employing surface skimming bulk waves 失效
    采用表面抛光体波的声波装置

    公开(公告)号：USRE35204E

    公开(公告)日：1996-04-09

    申请号：US412447

    申请日：1995-03-29

    申请人： Meirion F. Lewis

    发明人： Meirion F. Lewis

    IPC分类号： H03H3/08 ,  H01L41/00 ,  H03H9/00 ,  H03H9/02 ,  H03H9/25 ,  H03H9/30 ,  H03H9/38 ,  H01L41/08

    CPC分类号： H03H9/02559 ,  H03H9/02236 ,  H03H9/02551 ,  H03H9/30

    摘要： An acoustic wave device employing surfaces skimming bulk waves comprises a piezo electric substrate having a flat surface which carries an input transducer and an output transducer for respectively lanuching and receiving acoustic waves into and from the bulk of the substrate. The substrate may be of quartz, lithium tantalate, or lithium niobate and has the flat surface orientated so that a surface skimming bulk wave is launched without generation of surface acoustic waves.

    摘要翻译： 采用表面扫描体波的声波装置包括具有平坦表面的压电基板，该平坦表面承载输入换能器和输出换能器，用于分别地将声波接收和接收到基体的本体中并从该基底的大部分接收声波。 衬底可以是石英，钽酸锂或铌酸锂，并且具有取向的平坦表面，使得发射表面扫描体波而不产生表面声波。

    Birefringent single-mode acoustic fiber
    5.
    发明授权
    Birefringent single-mode acoustic fiber 失效
    双折射单模声波光纤

    公开(公告)号：US4742318A

    公开(公告)日：1988-05-03

    申请号：US27874

    申请日：1987-03-19

    申请人： Cheng-Kuei Jen ,  Gerald W. Farnell ,  Ahmad Safaai-Jazi

    发明人： Cheng-Kuei Jen ,  Gerald W. Farnell ,  Ahmad Safaai-Jazi

    IPC分类号： G01D5/48 ,  G10K11/24 ,  H03H9/30

    CPC分类号： G01D5/48 ,  G10K11/24

    摘要： A birefringent single-mode acoustic fiber for propagating linearly polarized shear acoustic waves while preserving linear polarization, comprises an elongated core region of a solid material in which acoustic waves can be propagated in two orthogonal shear mode components, and a cladding region enclosing all surfaces of the core region except end surfaces thereof, the cladding region being also of a solid material in which acoustic waves can be propagated in two orthogonal shear mode components. The core and cladding regions have different shear wave velocities with the shear wave velocity of the core region being lower than that of the cladding region, the core or cladding region being characterized by at least one birefringence causing factor selected from the group consisting of (a) noncircular geometry of the core region, (b) asymmetry of shear wave velocity distribution in the core region and (c) asymmetrical stress induced in the cladding region, whereby to strongly break degeneracy between the two orthogonal shear mode components and preserve linear polarization thereof throughout the fiber. The birefringent single-mode acoustic fiber according to the invention is particularly useful in acoustic fiber sensor systems for monitoring environmental changes in pressure, temperature, strain, stress, etc.

    摘要翻译： 用于传播线性偏振剪切声波同时保持线性偏振的双折射单模声波光纤包括固体材料的细长芯区域，其中声波可以在两个正交剪切模式分量中传播，包围区域包围所有表面的 核心区域除了其端面之外，包层区域也是固体材料，其中声波可以在两个正交剪切模式分量中传播。 核心区域和包层区域具有不同的剪切波速度，其中核心区域的剪切波速度低于包层区域的剪切波速度，芯部或包层区域的特征在于至少一个双折射引起因子，其选自（a ）核心区域的非圆形几何形状，（b）芯区域中剪切波速度分布的不对称性和（c）在包层区域中诱发的不对称应力，从而强烈地破坏两个正交剪切模式分量之间的简并性并保留线性极化 整个纤维。 根据本发明的双折射单模声波光纤在用于监测压力，温度，应变，应力等环境变化的声学光纤传感器系统中特别有用。

    Magnetostatic wave delay line
    6.
    发明授权
    Magnetostatic wave delay line 失效
    静电波延迟线

    公开(公告)号：US4554519A

    公开(公告)日：1985-11-19

    申请号：US542840

    申请日：1983-10-17

    申请人： John D. Adam

    发明人： John D. Adam

    IPC分类号： H03H2/00 ,  H03H9/30

    CPC分类号： H03H2/001

    摘要： A magnetostatic wave device operating within a biasing magnetic field for delaying microwave signals is described including a layer of YIG material having a predetermined thickness, first and second transducers spaced apart for generating and receiving magnetostatic waves in the YIG material and a ground plane having a plurality of spacings from said YIG material, each spacing having a predetermined length along the propagation path between the first and second transducers. The invention further includes first and second layers of YIG material, first and second transducers spaced apart for generating magnetostatic waves in said first material and said first material having a plurality of spacings from said second material, each spacing having a predetermined length along the propagation path from said first to said second transducer. The invention overcomes the problem of undesired phase or group delay variations from a desired linear or quadratic phase variation as a function of frequency.

    摘要翻译： 描述了在用于延迟微波信号的偏置磁场内工作的静磁波装置，其包括具有预定厚度的YIG材料层，间隔开的用于在YIG材料中产生和接收静磁波的第一和第二换能器以及具有多个 来自所述YIG材料的间隔，每个间隔具有沿着第一和第二换能器之间的传播路径的预定长度。 本发明还包括第一和第二层YIG材料，间隔开的第一和第二换能器，用于在所述第一材料中产生静磁波，并且所述第一材料具有来自所述第二材料的多个间隔，每个间隔沿传播路径具有预定长度 从所述第一传感器到所述第二传感器。 本发明克服了作为频率的函数的期望的线性或二次相位变化的不期望的相位或组延迟变化的问题。

    Magnetostatic wave delay line having improved group delay linearity
    7.
    发明授权
    Magnetostatic wave delay line having improved group delay linearity 失效
    具有改善组延迟线性的静电波延迟线

    公开(公告)号：US4400669A

    公开(公告)日：1983-08-23

    申请号：US305667

    申请日：1981-09-25

    申请人： Michael R. Daniel ,  John D. Adam ,  Robert A. Moore

    发明人： Michael R. Daniel ,  John D. Adam ,  Robert A. Moore

    IPC分类号： H03H2/00 ,  H03H9/30 ,  H03H9/125

    CPC分类号： H03H2/001

    摘要： The linearity of group delay versus frequency in magnetostatic wave delay lines is improved by a linear variation of one of three discrete parameters in the region between the two delay line transducers. The parameter variation is applied to magnetostatic wave delay lines that have a ground plane, a magnetic garnet crystal film substrate that is spaced from the ground plane and has transmitting and receiving transducers engaged to it, and a magnetic bias field. The discrete parameters varied are the magnetic bias field; the distance of the substrate from the ground plane; and the thickness of the substrate. Appropriate linear variations of any one of the these parameters provides improved linearity of group delay versus frequency.

    摘要翻译： 通过两个延迟线换能器之间的区域中的三个离散参数之一的线性变化，改善了静磁波延迟线中组延迟与频率的线性关系。 参数变化适用于具有接地面的静磁波延迟线，磁性石榴石晶体薄膜基板与接地平面间隔开并具有与其接合的发射和接收换能器以及磁偏置场。 离散参数变化是磁偏置场; 基板距接地平面的距离; 和基板的厚度。 这些参数中任何一个的适当的线性变化提供了组延迟与频率的改善的线性度。

    Reverberation annexation device
    9.
    发明授权
    Reverberation annexation device 失效
    混响兼并装置

    公开(公告)号：US4264883A

    公开(公告)日：1981-04-28

    申请号：US29488

    申请日：1979-04-12

    申请人： Chuzo Honda

    发明人： Chuzo Honda

    IPC分类号： G10K15/10 ,  H03H9/30

    CPC分类号： G10K15/10

    摘要： In a device for annexing a reverberation sound similar to natural reverberation in the course of sound recording, an elastic raw material such as a leaf spring is bent into a bridge element of any shape such as a stanchion ( ), or M-shape provided with a pair of rising foot portions. The bridge element is interposed in an intermediate portion of a coiled spring which is spanned between a drive-transducer and a pickup-transducer. Vibration which is applied along the helical direction of the coiled spring is transmitted, and at the same time the compressive movement of the coiled spring induced by said vibration is absorbed by means of spring action of the bridge element, thereby flutter modulation caused by the compressive movement of the coiled spring can be prevented. Moreover, irregular bending of any portion of the bridge element in front or rear direction can prevent induction of resonance in the audio frequency range.

    摘要翻译： 在用于兼容在录音过程中类似于自然混响的混响声音的装置中，诸如板簧的弹性原材料被弯曲成任何形状的桥接元件，例如支柱（）或M形， 一双上升的脚部分。 桥接元件插入螺旋弹簧的中间部分，该中间部分跨越驱动换能器和拾取 - 换能器。 沿着螺旋弹簧的螺旋方向施加的振动被传递，并且同时由所述振动引起的螺旋弹簧的压缩运动通过桥接元件的弹簧作用而被吸收，从而由压缩 可以防止螺旋弹簧的运动。 此外，桥元件的前后方向的任何部分的不规则弯曲可以防止音频频率范围内的谐振感应。