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    ACTIVE BEAM-FORMING TECHNIQUE FOR PIEZOELECTRIC ULTRASONIC TRANSDUCER ARRAY
    21.
    发明申请
    ACTIVE BEAM-FORMING TECHNIQUE FOR PIEZOELECTRIC ULTRASONIC TRANSDUCER ARRAY 审中-公开
    用于压电超声波传感器阵列的主动波束形成技术

    公开(公告)号：WO2016061412A1

    公开(公告)日：2016-04-21

    申请号：PCT/US2015/055827

    申请日：2015-10-15

    Applicant: QUALCOMM INCORPORATED

    Inventor： TANG, Hao-Yen ,  LU, Yipeng ,  PANCHAWAGH, Hrishikesh Vijaykumar

    IPC: G06K9/00 ,  G10K11/34 ,  B06B1/06

    CPC classification number: B06B1/0607 ,  B06B1/0207 ,  B06B2201/20 ,  B06B2201/55 ,  G06K9/0002 ,  G10K11/346

    Abstract: An apparatus includes an array of pixels, each pixel including in-cell pixel logic and a piezoelectric micromechanical ultrasonic transducer (PMUT) element, each in-cell pixel logic being communicatively coupled with at least one adjacent pixel in the array. Transceiver electronics may operate the array in a selectable one of a first mode and a second mode. In the first mode, the array may generate a substantially plane ultrasonic wave. In the second mode, the array may generate, from at least one superpixel region, a focused beam of relatively high acoustic pressure, each superpixel region including at least one inner pixel disposed in a central portion of the superpixel region and at least a first group of outer pixels disposed in an outer portion of the superpixel region. The transceiver electronics may be configured to operate the array by configuring at least one in-cell pixel logic.

    Abstract translation: 一种设备包括像素阵列，每个像素包括单元内像素逻辑和压电微机械超声换能器（PMUT）元件，每个单元内像素逻辑与阵列中的至少一个相邻像素通信耦合。 收发器电子器件可以以第一模式和第二模式中的可选择的一个操作阵列。 在第一模式中，阵列可以产生基本平面的超声波。 在第二模式中，阵列可以从至少一个超像素区域产生相对高声压的聚焦光束，每个超像素区域包括设置在超像素区域的中心部分中的至少一个内像素和至少第一组 设置在超像素区域的外部的外部像素。 收发器电子设备可以被配置为通过配置至少一个单元内像素逻辑来操作阵列。

    THREE-PORT PIEZOELECTRIC ULTRASONIC TRANSDUCER
    22.
    发明申请
    THREE-PORT PIEZOELECTRIC ULTRASONIC TRANSDUCER 审中-公开
    三端口压电超声波传感器

    公开(公告)号：WO2016061410A1

    公开(公告)日：2016-04-21

    申请号：PCT/US2015/055825

    申请日：2015-10-15

    Applicant: QUALCOMM INCORPORATED

    Inventor： PANCHAWAGH, Hrishikesh Vijaykumar ,  TANG, Hao-Yen ,  LU, Yipeng ,  DJORDJEV, Kostadin Dimitrov ,  GANTI, Suryaprakash ,  BURNS, David William ,  SHENOY, Ravindra Vaman ,  LASITER, Jon Bradley ,  KUO, Nai-Kuei ,  SAMMOURA, Firas

    IPC: B06B1/06

    CPC classification number: B06B1/0607 ,  B06B1/0207 ,  B06B2201/20 ,  B06B2201/55 ,  G06K9/0002 ,  G10K11/346

    Abstract: A piezoelectric micromechanical ultrasonic transducer (PMUT) includes a diaphragm disposed over a cavity, the diaphragm including a piezoelectric layer stack including a piezoelectric layer, a first electrode electrically coupled with transceiver circuitry, and a second electrode electrically coupled with the transceiver circuitry. The first electrode may be disposed in a first portion of the diaphragm, and the second electrode may be disposed in a second, separate, portion of the diaphragm. Each of the first and the second electrode is disposed on or proximate to a first surface of the piezoelectric layer, the first surface being opposite from the cavity. The PMUT is configured to transmit first ultrasonic signals by way of the first electrode during a first time period and to receive second ultrasonic signals by way of the second electrode during a second time period, the first time period and the second time period being at least partially overlapping.

    Abstract translation: 压电微机械超声换能器（PMUT）包括设置在空腔上方的隔膜，所述隔膜包括压电层堆叠，所述压电层堆叠包括压电层，与收发器电路电耦合的第一电极和与所述收发器电路电耦合的第二电极。 第一电极可以设置在隔膜的第一部分中，并且第二电极可以设置在隔膜的第二，分离的部分中。 第一和第二电极中的每一个设置在压电层的第一表面上或其附近，第一表面与空腔相对。 PMUT被配置为在第一时间段期间通过第一电极传输第一超声波信号，并且在第二时间段期间通过第二电极接收第二超声波信号，第一时间段和第二时间段至少是 部分重叠。

    SUPERPIXEL ARRAY OF PIEZOELECTRIC ULTRASONIC TRANSDUCERS FOR 2-D BEAMFORMING
    23.
    发明申请
    SUPERPIXEL ARRAY OF PIEZOELECTRIC ULTRASONIC TRANSDUCERS FOR 2-D BEAMFORMING 审中-公开
    用于二维波束形成的压电超声波传感器的超级薄膜阵列

    公开(公告)号：WO2016061406A1

    公开(公告)日：2016-04-21

    申请号：PCT/US2015/055821

    申请日：2015-10-15

    Applicant: QUALCOMM INCORPORATED

    Inventor： LU, Yipeng ,  TANG, , Hao-Yen ,  PANCHAWAGH, Hrishikesh Vijaykumar

    IPC: G06K9/00 ,  B06B1/06

    CPC classification number: B06B1/0607 ,  B06B1/0207 ,  B06B2201/20 ,  B06B2201/55 ,  G06K9/0002 ,  G10K11/346

    Abstract: An array of piezoelectric ultrasonic transducer elements includes a plurality of superpixel regions. Each superpixel region includes at least two pixel sets, a first pixel set of the at least two pixel sets being disposed in a central portion of the superpixel region, and at least a second pixel set being disposed in an outer portion of the superpixel region. An electrical coupling may be provided between the array and transceiver electronics. The transceiver electronics may be configured to operate the array in a selectable one of a first mode and a second mode. In the first mode, the array generates a substantially plane ultrasonic wave having a first acoustic pressure. In the second mode, the array generates, from each superpixel region, a focused beam having a second acoustic pressure that is substantially higher than the first acoustic pressure.

    Abstract translation: 一组压电超声换能器元件包括多个超像素区域。 每个超像素区域包括至少两个像素组，所述至少两个像素组的第一像素组被布置在超像素区域的中心部分中，并且至少第二像素组设置在超像素区域的外部部分中。 可以在阵列和收发器电子设备之间提供电耦合。 收发器电子设备可以被配置为以第一模式和第二模式中的可选择的一个操作阵列。 在第一模式中，阵列产生具有第一声压的基本平面的超声波。 在第二模式中，阵列从每个超像素区域产生具有明显高于第一声压的第二声压的聚焦光束。

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