公开(公告)号：US09986342B2

公开(公告)日：2018-05-29

申请号：US14254270

申请日：2014-04-16

Applicant: CANON KABUSHIKI KAISHA

Inventor： Kazutoshi Torashima ,  Ayako Kato ,  Takahiro Akiyama

IPC: H04R19/00 ,  H04R31/00 ,  B06B1/02

CPC classification number: H04R19/00 ,  B06B1/0292 ,  B06B2201/20 ,  H04R31/00

Abstract: A transducer includes at least one element including a plurality of cells. Each of the cells includes a pair of electrodes disposed with a gap therebetween and a vibrating membrane including one of the electrodes, and the vibrating membrane is vibratably supported. First and second cells of the plurality of cells in the element have the gaps that communicate with each other, and the first cell and a third cell in the element have the gaps that do not communicate with each other.

公开(公告)号：US20170320091A1

公开(公告)日：2017-11-09

申请号：US15533715

申请日：2015-11-30

Applicant: KONINLKLIJKE PHILIPS N.V.

Inventor： FRANCISCUS PAULUS MARIA BUDZELAAR ,  ALFONS WOUTER GROENLAND ,  ANTONIA CORNELIA VAN RENS

IPC: B06B1/02 ,  A61B8/00 ,  A61B8/06 ,  A61B8/08

CPC classification number: B06B1/0292 ,  A61B8/06 ,  A61B8/4483 ,  A61B8/488 ,  B06B2201/20 ,  B06B2201/76

Abstract: The invention related to an ultrasound system comprising: an ultrasound array including at least one capacitive micromachined ultrasonic transducer device comprising a membrane coupled to a first electrode, a substrate opposing the membrane with a gas or vacuum cavity there between and coupled to a second and a third electrodes, wherein the second electrode opposes the first electrode in a peripheral region and the third electrode opposes the first electrode in a central region; at least one drive circuit coupled to the array. The system further comprises a high impedance resistor, which electrically couples to the second electrode and the third electrode and has an impedance value higher than an AC impedance between the first and the second electrodes, when the membrane of the CMUT device is in the collapsed state and the CMUT devices is activated at operating frequency.

公开(公告)号：US09761324B2

公开(公告)日：2017-09-12

申请号：US15116441

申请日：2015-02-03

Applicant: Cornell University

Inventor： Amit Lal ,  Justin C. Kuo

IPC: G11C21/00 ,  G11C21/02 ,  B06B1/02 ,  G11C7/16 ,  G11C19/00

CPC classification number: G11C21/023 ,  B06B1/0215 ,  B06B2201/20 ,  B06B2201/55 ,  B06B2201/70 ,  G11C7/16 ,  G11C19/00 ,  G11C2013/0095

Abstract: Delay line memory device, systems and methods are disclosed. In one aspect, a delay line memory device includes a substrate; an electronic unit disposed on the substrate and operable to receive, amplify, and/or synchronize data signals into a bit stream to be transmitted as acoustic pulses carrying data stored in the delay line memory device; a first and a second piezoelectric transducer disposed on the substrate and in communication with the electronic unit, in which the first piezoelectric transducer is operable to transmit the data signals to the acoustic pulses that carry the data through the bulk of the substrate, and the second piezoelectric transducer is operable to transduce the received acoustic pulses to intermediate electrical signals containing the data, which are transferred to the electronic unit via an electrical interconnect to cause refresh of the data in the delay line memory device.

公开(公告)号：US20170169899A1

公开(公告)日：2017-06-15

申请号：US15116441

申请日：2015-02-03

Applicant: Cornell University

Inventor： Amit LAL ,  Justin C. KUO

IPC: G11C21/02 ,  B06B1/02

CPC classification number: G11C21/023 ,  B06B1/0215 ,  B06B2201/20 ,  B06B2201/55 ,  B06B2201/70 ,  G11C7/16 ,  G11C19/00 ,  G11C2013/0095

Abstract: Delay line memory device, systems and methods are disclosed. In one aspect, a delay line memory device includes a substrate; an electronic unit disposed on the substrate and operable to receive, amplify, and/or synchronize data signals into a bit stream to be transmitted as acoustic pulses carrying data stored in the delay line memory device; a first and a second piezoelectric transducer disposed on the substrate and in communication with the electronic unit, in which the first piezoelectric transducer is operable to transmit the data signals to the acoustic pulses that carry the data through the bulk of the substrate, and the second piezoelectric transducer is operable to transduce the received acoustic pulses to intermediate electrical signals containing the data, which are transferred to the electronic unit via an electrical interconnect to cause refresh of the data in the delay line memory device.

公开(公告)号：US20170144194A1

公开(公告)日：2017-05-25

申请号：US15422527

申请日：2017-02-02

Applicant: OLYMPUS CORPORATION

Inventor： Takanao FUJIMURA

IPC: B06B1/06

CPC classification number: B06B1/0622 ,  A61B8/12 ,  B06B2201/20 ,  B06B2201/55 ,  B06B2201/76

Abstract: An ultrasound transducer includes: an acoustic matching layer bending with a predetermined curvature; a plurality of piezoelectric elements disposed on an inner face on a side of a curvature center of the acoustic matching layer in such a manner that the plurality of piezoelectric elements bend; a plurality of wirings including respective one ends electrically connected to the plurality of piezoelectric elements, respectively; a substrate to which respective other ends of the plurality of wirings are electrically connected; and a holding member provided on the plurality of wirings at a position partway of the plurality of wirings between the plurality of piezoelectric elements and the substrate, the holding member being configured to hold a pitch of the plurality of wirings so as to be a pitch that is equal to or smaller than a predetermined arrangement pitch of the plurality of piezoelectric elements.

公开(公告)号：US09364862B2

公开(公告)日：2016-06-14

申请号：US14437616

申请日：2013-11-01

Applicant: UNIVERSITY OF WINDSOR

Inventor： Sazzadur Chowdhury

IPC: B06B1/02

CPC classification number: B06B1/0292 ,  B06B2201/20 ,  B06B2201/40 ,  B06B2201/70

Abstract: A sensor assembly including one or more capacitive micromachined ultrasonic transducer (CMUT) microarray modules which are provided with a number of individual transducers. The microarray modules are arranged to simulate or orient individual transducers in a hyperbolic paraboloid geometry. The transducers/sensor are arranged in a rectangular or square matrix and are activatable individually, selectively or collectively to emit and received reflected beam signals at a frequency of between about 100 to 170 kHz.

Abstract translation: 一种传感器组件，包括一个或多个电容式微加工超声波换能器（CMUT）微阵列模块，其设置有多个单独的换能器。 微阵列模块被布置成在双曲抛物面几何中模拟或定向各个换能器。 传感器/传感器被布置成矩形或矩形矩阵，并且可以单独地，选择性地或集体地激活以以大约100到170kHz之间的频率发射和接收反射光束信号。

公开(公告)号：US09096422B2

公开(公告)日：2015-08-04

申请号：US13768820

申请日：2013-02-15

Applicant: Arman Hajati

Inventor： Arman Hajati

IPC: H01L41/08 ,  A61B8/00 ,  B81B7/00 ,  B81B7/02 ,  H01L41/09

CPC classification number: B81B7/008 ,  B06B1/0207 ,  B06B1/0629 ,  B06B2201/20 ,  B81B7/02 ,  G01N29/262 ,  G01S7/52017 ,  G01S15/8925 ,  G10K11/346 ,  H01H1/0036 ,  H01L27/20 ,  H01L41/0825 ,  H01L41/0973

Abstract: Switchable micromachined transducer arrays are described where a MicroElectroMechanical Systems (MEMS) switch, or relay, is monolithically integrated with a transducer element. In embodiments, the MEMS switch is implemented in the same substrate as the transducer array to implement one or more logic, addressing, or transducer control function. In embodiments, each transducer element of an array is a piezoelectric element coupled to at least one MEMS switch to provide element-level addressing within the array. In certain embodiments the same piezoelectric material employed in the transducer is utilized in the MEMS switch.

Abstract translation: 描述了可切换的微机械传感器阵列，其中微电子机械系统（MEMS）开关或继电器与换能器元件单片集成。 在实施例中，MEMS开关实现在与换能器阵列相同的衬底中，以实现一个或多个逻辑，寻址或换能器控制功能。 在实施例中，阵列的每个换能器元件是耦合到至少一个MEMS开关的压电元件，以在阵列内提供元件级寻址。 在某些实施例中，在MEMS开关中使用在换能器中使用的相同的压电材料。

公开(公告)号：US20150087991A1

公开(公告)日：2015-03-26

申请号：US14497150

申请日：2014-09-25

Applicant: Massachusetts Institute of Technology

Inventor： Kailiang Chen ,  Charles G. Sodini

IPC: A61B8/00 ,  A61B8/08 ,  H03F3/45 ,  A61B8/13

CPC classification number: A61B8/4488 ,  A61B8/13 ,  A61B8/483 ,  A61B8/54 ,  B06B1/0207 ,  B06B1/0215 ,  B06B2201/20 ,  B06B2201/51 ,  B06B2201/55 ,  B06B2201/76 ,  G01S7/5202 ,  G01S7/52025 ,  G01S7/52033 ,  G01S7/5208 ,  G01S15/8925 ,  G01S15/8993 ,  G01S15/8995 ,  G10K11/346 ,  H03F3/45076 ,  H03F2200/375 ,  H03F2203/45224

Abstract: An ultrasonic imaging system is described in which a column-row-parallel architecture is provided at the circuit level of an ultrasonic transceiver. The ultrasonic imaging system can include a N×M array of transducer elements and a plurality of transceiver circuits where each transceiver circuit is connected to a corresponding one transducer element of the N×M array of transducer elements. A shared pulser gate driver and a shared VGA is provided for each row and column. Selection logic includes row select, column select, and per-element bit select. Through the column-row-parallel architecture, a variety of aperture configurations can be achieved.

Abstract translation: 描述了超声波成像系统，其中在超声波收发器的电路级提供列 - 行并行架构。 超声波成像系统可以包括换能器元件的N×M阵列和多个收发器电路，其中每个收发器电路连接到N×M阵列的换能器元件的对应的一个换能器元件。 为每个行和列提供了共享脉冲器门驱动器和共享VGA。 选择逻辑包括行选择，列选择和每元素位选择。 通过列排并行架构，可以实现各种孔径配置。

公开(公告)号：US20150016221A1

公开(公告)日：2015-01-15

申请号：US14325944

申请日：2014-07-08

Applicant: Canon Kabushiki Kaisha

Inventor： Eiji Takeuchi ,  Takahiro Akiyama ,  Kazutoshi Torashima

IPC: G10K9/12 ,  G01S15/02 ,  H02N1/00

CPC classification number: G10K9/12 ,  B06B1/0207 ,  B06B1/0292 ,  B06B2201/20 ,  G01S15/02 ,  H02N1/006

Abstract: A transducer includes a plurality of elements each including at least one cell structured in such a way that a diaphragm including one of a first electrode and a second electrode disposed facing each other via a space is vibratably supported, bias wiring for supplying a bias voltage to the first electrode to provide a potential difference between the first and the second electrodes, and for electrically connecting the first electrodes of the elements to each other, and signal wiring lines each connected to a different one of the elements. The bias wiring includes a plurality of branch wiring lines to each of which the first electrodes of a part of the elements are connected, a plurality of first common wiring lines for connecting the branch wiring lines to each other, and a second common wiring line for connecting the first common wiring lines to each other.

Abstract translation: 换能器包括多个元件，每个元件包括至少一个单元，其以这样的方式构造，使得包括通过空间相对设置的第一电极和第二电极中的一个的隔膜被振动地支撑，用于将偏置电压提供给 所述第一电极在所述第一和第二电极之间提供电位差，并且用于将所述元件的第一电极彼此电连接，以及每个连接到所述元件的不同元件的信号布线。 偏置布线包括多个分支布线，其中一个元件的一部分的第一电极被连接，用于将分支布线彼此连接的多个第一公共布线，以及用于 将第一公共布线彼此连接。

公开(公告)号：US20140029386A1

公开(公告)日：2014-01-30

申请号：US13851336

申请日：2013-03-27

Applicant: George Whitaker

Inventor： George Whitaker

IPC: B06B1/06

CPC classification number: B06B1/06 ,  B06B1/0207 ,  B06B1/0618 ,  B06B2201/20 ,  B06B2201/55 ,  B06B2201/71 ,  B06B2201/74

Abstract: An apparatus and method associated with amplifying piezoelectric sonic and ultrasonic outputs is presented which provides high power output from piezoelectric devices, especially at high ultrasonic frequencies, in open air, which mitigates or eliminates overheating of the piezoelectric devices when stimulated at or near their peak outputs for extended periods. In addition, the invention provides a means of amplifying a piezoelectric sonic and ultrasonic device if a desired output power exceeds a normal maximum capability of the piezoelectric device.

Abstract translation: 提出了一种与放大压电声波和超声波输出相关联的装置和方法，其提供来自压电装置的高功率输出，特别是在高空气中的高超声波频率下，其在峰值输出处或其附近受到刺激时减轻或消除压电装置的过热 长时间 此外，本发明提供一种如果所需的输出功率超过压电器件的正常最大容量，则可以放大压电声波和超声波装置。