会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • ACOUSTIC POWER TRANSFORMER INCLUDING LENS
    • 包括镜头的声音电力变压器
    • US20080297282A1
    • 2008-12-04
    • US11755825
    • 2007-05-31
    • John D. Larson, IIIMichael L. FrankMark A. UnkrichStephen R. Gilbert
    • John D. Larson, IIIMichael L. FrankMark A. UnkrichStephen R. Gilbert
    • H03H9/00
    • H01L41/107
    • An acoustic power transformer includes: an input port adapted to receive an input signal; a transmitting acoustic transducer coupled to the input port and adapted to transmit an acoustic wave in response to the input signal received at the input port; a receiving acoustic transducer adapted to receive the acoustic wave and in response thereto to produce an output signal; an output port adapted to output the output signal; and an acoustic medium disposed in an acoustic wave propagation path between the transmitting acoustic transducer and the receiving acoustic transducer. In one case, at least one of the transmitting acoustic transducer and receiving acoustic transducer includes a Fresnel lens. In another case, the transformer includes an acoustic lens disposed in the acoustic wave propagation path between the transmitting acoustic transducer and the receiving acoustic transducer.
    • 声功率变压器包括:适于接收输入信号的输入端口; 耦合到所述输入端口并且响应于在所述输入端口处接收的输入信号而发射声波的发射声学换能器; 适于接收声波并响应于此产生输出信号的接收声换能器; 输出端口,其适于输出所述输出信号; 以及声传播介质,布置在传声传感器和接收声换能器之间的声波传播路径中。 在一种情况下,至少一个发射声换能器和接收声换能器包括菲涅尔透镜。 在另一种情况下,变压器包括设置在传声换能器和接收声换能器之间的声波传播路径中的声透镜。
    • 5. 发明授权
    • Acoustic power transformer including lens
    • 声功率变压器包括镜头
    • US07613076B2
    • 2009-11-03
    • US11755825
    • 2007-05-31
    • John D. Larson, IIIMichael L. FrankMark A. UnkrichStephen R. Gilbert
    • John D. Larson, IIIMichael L. FrankMark A. UnkrichStephen R. Gilbert
    • G01S13/00
    • H01L41/107
    • An acoustic power transformer includes: an input port adapted to receive an input signal; a transmitting acoustic transducer coupled to the input port and adapted to transmit an acoustic wave in response to the input signal received at the input port; a receiving acoustic transducer adapted to receive the acoustic wave and in response thereto to produce an output signal; an output port adapted to output the output signal; and an acoustic medium disposed in an acoustic wave propagation path between the transmitting acoustic transducer and the receiving acoustic transducer. In one case, at least one of the transmitting acoustic transducer and receiving acoustic transducer includes a Fresnel lens. In another case, the transformer includes an acoustic lens disposed in the acoustic wave propagation path between the transmitting acoustic transducer and the receiving acoustic transducer.
    • 声功率变压器包括:适于接收输入信号的输入端口; 耦合到所述输入端口并且响应于在所述输入端口处接收的输入信号而发射声波的发射声学换能器; 适于接收声波并响应于此产生输出信号的接收声换能器; 输出端口,其适于输出所述输出信号; 以及声传播介质,布置在传声传感器和接收声换能器之间的声波传播路径中。 在一种情况下,至少一个发射声换能器和接收声换能器包括菲涅尔透镜。 在另一种情况下,变压器包括设置在传声换能器和接收声换能器之间的声波传播路径中的声透镜。
    • 7. 发明授权
    • Thin-film acoustically-coupled transformer
    • 薄膜声耦合变压器
    • US06946928B2
    • 2005-09-20
    • US10699481
    • 2003-10-30
    • John D. Larson, IIIRichard C. Ruby
    • John D. Larson, IIIRichard C. Ruby
    • H03H9/17H03H9/13H03H9/60H03H9/54H03H9/205
    • H03H9/605H01L2224/48091H01L2224/49175H03H9/132H03H9/584H03H9/587Y10T29/42H01L2924/00014
    • The acoustically-coupled transformer includes first and second stacked bulk acoustic resonators (SBARs), each having a stacked pair of film bulk acoustic resonators (FBARs) with an acoustic decoupler between them. In one embodiment, the acoustic decoupler comprises a layer of decoupling material has having a nominal thickness equal to an odd integral multiple of one quarter of the wavelength of an acoustic wave having a frequency equal to the transformer's center frequency. In another embodiment, the acoustic decoupler comprises a Bragg stack. Each FBAR has opposed planar electrodes with piezoelectric material between them. The transformer additionally has first terminals, second terminals, a first electrical circuit connecting one FBARs of the first SBAR to one FBAR of the second SBAR and the first terminals, and a second electrical circuit connecting the other FBAR of the first SBAR to the other FBAR of the second SBAR and the second terminals.
    • 声耦合变压器包括第一和第二堆叠的体声波谐振器(SBAR),每个具有堆叠的一对薄膜体声共振器(FBAR),在它们之间具有声耦合器。 在一个实施例中,声学解耦器包括去耦材料层具有等于频率等于变压器中心频率的声波波长四分之一的奇数整数倍的标称厚度。 在另一个实施例中,声分离器包括布拉格堆叠。 每个FBAR都具有与它们之间的压电材料的平面电极。 变压器还具有第一端子,第二端子,将第一SBAR的一个FBAR与第二SBAR的一个FBAR和第一端子连接的第一电路,以及将第一SBAR的另一个FBAR连接到另一个FBAR的第二电路 的第二个SBAR和第二个终端。
    • 8. 发明授权
    • Bulk acoustic resonator perimeter reflection system
    • 体声共振器周边反射系统
    • US06424237B1
    • 2002-07-23
    • US09746525
    • 2000-12-21
    • Richard C. RubyJohn D. Larson, IIIPaul D. Bradley
    • Richard C. RubyJohn D. Larson, IIIPaul D. Bradley
    • H03H915
    • H03H9/173H03H9/0211H03H9/02118H03H9/132Y10T29/42
    • A bulk acoustic resonator having a high quality factor is formed on a substrate having a depression formed in a top surface of the substrate. The resonator includes a first electrode, a piezoelectric material and a second electrode. The first electrode is disposed on the top surface of the substrate and extends beyond the edges of the depression by a first distance to define a first region therebetween. The piezoelectric material is disposed on the top surface of the substrate and over the first electrode, and the second electrode is disposed on the piezoelectric material. The second electrode includes a portion that is located above the depression. The portion of the second electrode that is located over the depression has at least one edge that is offset from a corresponding edge of the depression by a second distance to define a second region therebetween. The first and second regions have different impedances, as a result of the different materials located in the two regions. In addition, the first and second distances are approximately equal to a quarter-wavelength of a sound wave travelling laterally across the respective region, such that reflections off of the edges of the regions constructively interfere to maximize the reflectivity of the resonator.
    • 具有高质量因素的体声波谐振器形成在具有形成在基板的顶表面中的凹陷的基板上。 谐振器包括第一电极,压电材料和第二电极。 第一电极设置在衬底的顶表面上并且延伸超过凹陷的边缘第一距离以限定它们之间的第一区域。 压电材料设置在基板的顶表面上并在第一电极上方,第二电极设置在压电材料上。 第二电极包括位于凹部上方的部分。 位于凹部上方的第二电极的部分具有至少一个边缘,该边缘与凹陷的对应边缘偏移第二距离,以限定它们之间的第二区域。 由于位于两个区域的不同材料,第一和第二区域具有不同的阻抗。 此外,第一和第二距离近似等于横过各个区域横向移动的声波的四分之一波长,使得区域边缘的反射构造地干扰以最大化谐振器的反射率。