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41. 发明授权

US5187403A Acoustic image signal receiver providing for selectively activatable amounts of electrical signal delay 失效
标题翻译：提供电子信号延迟选择性激活的声音图像信号接收器
公开(公告)号：US5187403A
公开(公告)日：1993-02-16
申请号：US520681
申请日：1990-05-08
申请人： John D. Larson, III
发明人： John D. Larson, III
IPC分类号： A61B8/00 , H03H9/38 , H04R17/00 , H05K10/00
CPC分类号： H03H9/38
摘要： Apparatus and method to provide a controllable one-dimensional array or two-dimensional array of delay times for an array of acoustic signals propagating in a plurality of bodies of piezoelectric material. Each piezoelectric body is provided with three or more pairs of electrodes, with the first and second electrodes of a pair being spaced apart and positioned on first and second surfaces, respectively, of the piezoelectric body. As an acoustic wave propagates longitudinally in the piezoelectric body, an electrical voltage signal is generated between each electrode pair as the wave passes between the two electrodes of that pair. Time delay is controlled by choice of the longitudinal position of each electrode pair along the piezoelectric body.

42. 发明授权

US4482834A Acoustic imaging transducer 失效
标题翻译：声学成像传感器
公开(公告)号：US4482834A
公开(公告)日：1984-11-13
申请号：US052705
申请日：1979-06-28
申请人： J. Fleming Dias , H. Edward Karrer , John D. Larson, III , David A. Wilson , Amin M. Hanafy
发明人： J. Fleming Dias , H. Edward Karrer , John D. Larson, III , David A. Wilson , Amin M. Hanafy
IPC分类号： H04R1/46 , A61B8/00 , B06B1/06 , G01N29/24 , G01S7/521 , G10K11/00 , G10K11/02 , G10K11/26 , H04R17/00 , H01L41/08
CPC分类号： G01N29/2437 , B06B1/0622 , G10K11/002 , G10K11/02 , G10K11/26
摘要： The acoustic imaging transducer described herein incorporates an acoustic stack contained in an alumina housing which also provides structure for electrically connecting the transducer array elements to system signal processing electronics.
摘要翻译：本文所述的声学成像换能器包括包含在氧化铝壳体中的声学堆叠，其还提供用于将换能器阵列元件电连接到系统信号处理电子器件的结构。

43. 发明授权

US09048812B2 Bulk acoustic wave resonator comprising bridge formed within piezoelectric layer 有权
标题翻译：包含在压电层内形成的桥的体声波谐振器
公开(公告)号：US09048812B2
公开(公告)日：2015-06-02
申请号：US13208909
申请日：2011-08-12
申请人： Dariusz Burak , Phil Nikkel , Jyrki Kaitila , John D. Larson, III , Alexandre Shirakawa
发明人： Dariusz Burak , Phil Nikkel , Jyrki Kaitila , John D. Larson, III , Alexandre Shirakawa
IPC分类号： H03H9/54 , H03H9/13 , H03H9/02 , H03H3/04 , H03H9/17 , H03H9/58
CPC分类号： H03H9/132 , H03H3/04 , H03H9/02007 , H03H9/02118 , H03H9/173 , H03H9/175 , H03H9/584 , H03H9/585 , H03H9/587 , H03H9/589
摘要： A bulk acoustic wave (BAW) structure includes a first electrode disposed over a substrate, a piezoelectric layer disposed over the first electrode, and a second electrode disposed over the first piezoelectric layer. A bridge is formed within the piezoelectric layer, where the bridge is surrounded by piezoelectric material of the piezoelectric layer.
摘要翻译：体声波（BAW）结构包括设置在基板上的第一电极，设置在第一电极上的压电层和设置在第一压电层上的第二电极。桥接器形成在压电层内，桥被压电层的压电材料包围。

44. 发明授权

US08587391B2 Acoustic coupling layer for coupled resonator filters and method of fabricating acoustic coupling layer 有权
标题翻译：用于耦合谐振滤波器的声耦合层和制造声耦合层的方法
公开(公告)号：US08587391B2
公开(公告)日：2013-11-19
申请号：US12710590
申请日：2010-02-23
申请人： Steve Gilbert , Rick Snyder , John D. Larson, III , Phil Nikkel
发明人： Steve Gilbert , Rick Snyder , John D. Larson, III , Phil Nikkel
IPC分类号： H03H9/205 , H03H9/54
CPC分类号： H03H9/584 , H03H9/50 , H03H9/587
摘要： In accordance with a representative embodiment, a bulk acoustic wave (BAW) resonator structure, comprises: a first BAW resonator comprising a first lower electrode, a first upper electrode and a first piezoelectric layer disposed between the first lower electrode and the first upper electrode; a second BAW resonator comprising a second lower electrode, a second upper electrode and a second piezoelectric layer disposed between the second lower electrode and the second upper electrode; and a single-material acoustic coupling layer disposed between the first and second BAW resonators, the acoustic coupling layer having an acoustic impedance less than approximately 6.0 MRayls and an acoustic attenuation less than approximately 1000 dB/cm.
摘要翻译：根据代表性实施例，体声波（BAW）谐振器结构包括：第一BAW谐振器，包括第一下电极，第一上电极和设置在第一下电极和第一上电极之间的第一压电层; 第二BAW谐振器，包括设置在所述第二下电极和所述第二上电极之间的第二下电极，第二上电极和第二压电层; 以及设置在第一和第二BAW谐振器之间的单材料声耦合层，声耦合层具有小于约6.0Mrad的声阻抗和小于约1000dB / cm的声衰减。

45. 发明授权

US07362198B2 Pass bandwidth control in decoupled stacked bulk acoustic resonator devices 有权
标题翻译：在解耦堆叠体声波谐振器装置中通过带宽控制
公开(公告)号：US07362198B2
公开(公告)日：2008-04-22
申请号：US10965449
申请日：2004-10-13
申请人： John D. Larson, III , Stephen L. Ellis
发明人： John D. Larson, III , Stephen L. Ellis
IPC分类号： H03H9/54
CPC分类号： H03H9/605 , H03H9/02102 , H03H9/132 , H03H9/175 , H03H9/584 , H03H9/587 , H03H9/589
摘要： The decoupled stacked bulk acoustic resonator (DSBAR) device has a lower film bulk acoustic resonator (FBAR), an upper FBAR stacked on the lower FBAR, and an acoustic decoupler between the FBARs. Each of the FBARs has opposed planar electrodes and a layer of piezoelectric material between the electrodes. The acoustic decoupler has acoustic decoupling layers of acoustic decoupling materials having different acoustic impedances. The acoustic impedances and thicknesses of the acoustic decoupling layers determine the acoustic impedance of the acoustic decoupler, and, hence, the pass bandwidth of the DSBAR device. Process-compatible acoustic decoupling materials can then be used to make acoustic decouplers with acoustic impedances (and pass bandwidths) that are not otherwise obtainable due to the lack of process-compatible acoustic decoupling materials with such acoustic impedances.
摘要翻译：解耦堆叠体声波谐振器（DSBAR）器件具有较低的膜体声波谐振器（FBAR），堆叠在下FBAR上的上FBAR和FBAR之间的声耦合器。每个FBAR具有相对的平面电极和电极之间的压电材料层。声解耦器具有具有不同声阻抗的声去耦材料的声去耦层。声学解耦层的声阻抗和厚度决定了声耦合器的声阻抗，并因此决定了DSBAR器件的通带宽度。然后，由于缺乏具有这种声阻抗的工艺兼容的声学解耦材料，因此可以使用与工艺兼容的声学解耦材料来制造具有声阻抗（和通过带宽）的声学去耦器。

46. 发明授权

US07173504B2 Impedance transformation ratio control in film acoustically-coupled transformers 有权
标题翻译：薄膜声耦合变压器中的阻抗变换比控制
公开(公告)号：US07173504B2
公开(公告)日：2007-02-06
申请号：US10965474
申请日：2004-10-13
申请人： John D. Larson, III , Naghmeh Sarkeshik , Stephen L. Ellis
发明人： John D. Larson, III , Naghmeh Sarkeshik , Stephen L. Ellis
IPC分类号： H03H9/54 , H03H9/60
CPC分类号： H03H9/605 , H01L2224/48091 , H01L2224/49175 , H03H9/132 , H03H9/584 , H03H9/587 , Y10T29/42 , H01L2924/00014
摘要： The film acoustically-coupled transformer (FACT) has decoupled stacked bulk acoustic resonators (DSBARs), a first electrical circuit and a second electrical circuit. Each of the DSBARs has a lower film bulk acoustic resonator (FBAR), an upper FBAR and an acoustic decoupler. The upper FBAR is stacked on the lower FBAR and the acoustic decoupler is located between the FBARs. Each FBAR has opposed planar electrodes and a piezoelectric element between the electrodes. The first electrical circuit interconnects the lower FBARs. The second electrical circuit interconnects the upper FBARs. The FBARs of one of the DSBARs differ in electrical impedance from the FBARs of another of the DSBARs. The FACT has an impedance transformation ratio greater than 1:m2, where m is the number of DSBARs. The actual impedance transformation ratio depends on the ratio of the impedances of the FBARs.
摘要翻译：薄膜声耦合变压器（FACT）已经分离了堆叠体声共振器（DSBAR），第一电路和第二电路。每个DSBAR具有较低的膜体声波谐振器（FBAR），上部FBAR和声学解耦器。上FBAR堆叠在下FBAR上，声耦合器位于FBAR之间。每个FBAR具有相对的平面电极和电极之间的压电元件。第一个电路将下部FBAR互连。第二个电路将上部FBAR互连。其中一个DSBAR的FBAR的电阻抗与另一DSBAR的FBAR不同。 FACT具有大于1：m 2的阻抗变换比，其中m是DSBAR的数量。实际的阻抗变换比取决于FBAR的阻抗比。

47. 发明授权

US07019605B2 Stacked bulk acoustic resonator band-pass filter with controllable pass bandwidth 有权
标题翻译：具有可控通带宽度的堆叠体声波谐振器带通滤波器
公开(公告)号：US07019605B2
公开(公告)日：2006-03-28
申请号：US10699289
申请日：2003-10-30
申请人： John D. Larson, III
发明人： John D. Larson, III
IPC分类号： H03H9/54
CPC分类号： H03H9/587 , H03H9/132 , H03H9/584 , H03H9/605 , Y10T29/42 , Y10T29/49005 , Y10T29/49117
摘要： The band-pass filter has a stacked pair of film bulk acoustic resonators (FBARs) and an acoustic decoupler between the FBARs. Each of the FBARs has opposed planar electrodes and a layer of piezoelectric material between the electrodes. The acoustic decoupler has a single layer of acoustic decoupling material having a nominal thickness equal to an odd integral multiple of one quarter of the wavelength in the acoustic decoupling material of an acoustic wave having a frequency equal to the center frequency. The acoustic decoupling material comprises plastic. The acoustic decoupler controls the coupling of acoustic energy between the FBARs. Specifically, the acoustic decoupler couples less acoustic energy between the FBARs than would be coupled by direct contact between the FBARs. The reduced acoustic coupling gives the band-pass filter desirable in-band and out-of-band properties.
摘要翻译：带通滤波器具有叠层的薄膜体声共振器（FBAR）和FBAR之间的声耦合器。每个FBAR具有相对的平面电极和电极之间的压电材料层。声学解耦器具有单层声学解耦材料，其具有等于具有等于中心频率的频率的声波的声学去耦材料中四分之一波长的奇数整数倍的标称厚度。声学解耦材料包括塑料。声耦合器控制FBAR之间的声能耦合。具体来说，声耦合器耦合FBAR之间较少的声能，而不是FBAR之间的直接接触。减少的声耦合给出带通滤波器所需的带内和带外特性。

48. 发明授权

US06954121B2 Method for controlling piezoelectric coupling coefficient in film bulk acoustic resonators and apparatus embodying the method 失效
标题翻译：用于控制膜体声波谐振器中的压电耦合系数的方法和体现该方法的装置
公开(公告)号：US06954121B2
公开(公告)日：2005-10-11
申请号：US10457737
申请日：2003-06-09
申请人： Paul D. Bradley , Yury Oshmyansky , Benjamin Yu , John D. Larson, III
发明人： Paul D. Bradley , Yury Oshmyansky , Benjamin Yu , John D. Larson, III
IPC分类号： H01L41/09 , H01L41/187 , H01L41/22 , H03H3/04 , H03H9/02 , H03H9/17 , H03H9/00
CPC分类号： H03H9/173 , H03H3/04 , H03H9/02149
摘要： An apparatus such as a thin film resonator has a bottom electrode, a top electrode, and a composite layer between the two electrodes. The composite layer includes a piezoelectric (PZ) layer having a first coupling coefficient and a coupling coefficient control (CCC) layer having a second coupling coefficient. By varying the relative thicknesses of the PZ layer and the CCC layer during the manufacturing process, the coupling coefficient of the resonator can be established (to any value between the first coupling coefficient and the second coupling coefficient) with minimal impact on resonant frequency. Further, it is relatively less difficult to fabricate the PZ layer and the CCC layer having the desired coupling coefficient (as a combination of the first coupling coefficient and the second coupling coefficient) compared to the difficulties of fabrication of a uniform PZ layer having the desired coupling coefficient.
摘要翻译：诸如薄膜谐振器的装置在两个电极之间具有底电极，顶电极和复合层。复合层包括具有第一耦合系数的压电（PZ）层和具有第二耦合系数的耦合系数控制（CCC）层。通过在制造过程中改变PZ层和CCC层的相对厚度，可以以对谐振频率的最小影响来建立谐振器的耦合系数（在第一耦合系数和第二耦合系数之间的任何值）。此外，制造具有期望的耦合系数（作为第一耦合系数和第二耦合系数的组合）的PZ层和CCC层相对于制造具有期望的均匀PZ层的困难相对较难，耦合系数。

49. 发明授权

US5267221A Backing for acoustic transducer array 失效
标题翻译：支撑声换能器阵列
公开(公告)号：US5267221A
公开(公告)日：1993-11-30
申请号：US835157
申请日：1992-02-13
申请人： Miller David G. , John D. Larson, III
发明人： Miller David G. , John D. Larson, III
IPC分类号： A61B8/00 , B06B1/06 , G01N29/24 , G10K11/00 , H04R17/00
CPC分类号： B06B1/0622 , G10K11/002
摘要： An acoustic transducer assembly is provided having a one or two dimensional array of transducer elements, an electrical circuit element such as a circuit element and a backing for interconnecting transducer elements to corresponding contacts or traces of the circuit element. The backing is a block of acoustic attenuating material having a conductor extending therethrough between each transducer element and the corresponding circuit contact. The block has acoustic properties, including acoustic impedance and acoustic velocity, to achieve a desired degree of acoustic match with the transducer elements and/or to permit coupling of acoustic energy from the conductors into the block. The block may be of a single material or may have different volumes of two or more materials having different acoustic properties to achieve desired results. Multiple thin conductors or conducting fibers or foils may be utilized for each transducer element to reduce or eliminate acoustic coupling into the conductors. Acoustic coupling into the conductors may also be reduced by providing off-center contact with the transducer elements. Removal of acoustic energy from the conductors may be facilitated by covering each conductor with a material having a lower acoustic velocity than the conductor, which material is impedance matched to at least a portion of adjacent backing material.

50. 发明授权

US5252922A Radiofrequency focusing of magnetic resonance images 失效
标题翻译：磁共振图像的射频聚焦
公开(公告)号：US5252922A
公开(公告)日：1993-10-12
申请号：US694514
申请日：1991-04-30
申请人： John D. Larson, III
发明人： John D. Larson, III
IPC分类号： G01R33/3415 , G01R33/56 , G01B33/20
CPC分类号： G01R33/5659 , G01R33/3415 , G01R33/56
摘要： Apparati and methods for magnetic resonance imaging a selected interrogation volume in a tissue of a human or animal body, to provide increased signal-to-noise ratios for fixed data acquisition times. The method involves excitation of magnetic resonance in a selected interrogation volume that may be as small as 500-3,000 cm.sup.3, through controllable focusing or steering of a rotating magnetic field signal used to induce magnetic resonance. The response signals issued by the excited volume element are then collected by focusing of these response signals, using a phased array of antennae for this purpose. Use of the invention with well known nuclear magnetic resonance excitation procedures, such as spin echo, echo planar, gradient recalled and backprojection, are discussed.

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