公开(公告)号：US10275638B1

公开(公告)日：2019-04-30

申请号：US15274944

申请日：2016-09-23

Applicant: Apple Inc.

Inventor： Marduke Yousefpor ,  Mohammad Yeke Yazdandoost ,  Brian Michael King ,  Aaron Tucker ,  Marcus Yip ,  Ehsan Khajeh

IPC: G06K9/28 ,  G06K9/00 ,  G06F3/043 ,  G01S15/89

Abstract: An acoustic imaging system includes multiple acoustic transducers disposed to circumscribe a portion of imaging surface. An acoustic imaging system also includes a controller and an image resolver. The acoustic transducers convert electrical signals into mechanical energy and/or mechanical energy into electrical signals. The controller is adapted to apply an electrical signal to the acoustic transducers which, in response, induce a mechanical wave, such as a surface wave, into the circumscribed portion. The controller is also adapted to receive electrical signals from the acoustic transducers. The image resolver uses the electrical signals received by the controller in order to construct an image of an object in physical contact with the imaging surface.

公开(公告)号：US09904836B2

公开(公告)日：2018-02-27

申请号：US14823928

申请日：2015-08-11

Applicant: Apple Inc.

Inventor： Mohammad Yeke Yazdandoost ,  Brian Michael King ,  Marduke Yousefpor ,  Marcus Yip

IPC: G06K9/28 ,  G06K9/00

CPC classification number: G06K9/0002

Abstract: An acoustic imaging system can include an array of transducers in acoustic communication with a substrate configured to receive a subject for imaging. The transducers can independently or cooperatively send an acoustic pulse into the substrate toward the subject. In many examples, a number of adjacently-positioned transducers are activated substantially simultaneously so as to generate a plane wave into the substrate. After the plane wave has had an opportunity to propagate through the substrate, reflect from the top surface, and propagate through the substrate again, the electrical signals can be obtained from the transducers and an image of the subject can be assembled. In many embodiments, the plurality of transducers can be driven and read in groups such as non-intersecting (disjoint) sets or subarrays.

公开(公告)号：US09613246B1

公开(公告)日：2017-04-04

申请号：US14487253

申请日：2014-09-16

Applicant: Apple Inc.

Inventor： Giovanni Gozzini ,  Matthew E. Last ,  Brian Michael King ,  Marduke Yousefpor

IPC: H01L41/22 ,  G06K9/00 ,  H01L41/25

CPC classification number: G06K9/0002 ,  H01L41/0825 ,  H01L41/25

Abstract: An ultrasonic biometric scanner includes an ultrasonic multiple scan element array with multiple scan elements. The array includes piezoelectric material such as lead zirconate titanate or polyvinylidene difluoride with a first electrode on a first surface and a second electrode on a second, opposite surface. At least one of the first electrode or the second electrode include multiple electrodes wherein the number of the multiple electrodes corresponds to a number of the multiple scan elements. A substrate is electrically coupled to the second electrode and/or the first electrode. A cover may be positioned over the first electrode. The cover has an acoustic impedance matching ultrasonic signals emitted by the piezoelectric material.

公开(公告)号：US20170053151A1

公开(公告)日：2017-02-23

申请号：US15239455

申请日：2016-08-17

Applicant: Apple Inc.

Inventor： Mohammad Yeke Yazandoost ,  Giovanni Gozzini ,  Brian Michael King ,  Marcus Yip ,  Marduke Yousefpor ,  Ehsan Khajeh ,  Aaron Tucker

IPC: G06K9/00 ,  A61B8/00 ,  A61B5/1172

CPC classification number: G06K9/0002 ,  A61B5/1172 ,  A61B5/6898 ,  A61B8/00 ,  B06B1/0207

Abstract: An acoustic imaging system includes multiple transducers disposed to circumscribe a portion of substrate. An acoustic imaging system also includes a controller and an image resolver. The transducers convert electrical signals into mechanical energy and/or mechanical energy into electrical signals. The controller is adapted to apply an electrical signal to the transducers which, in response, induce a mechanical wave, such as a surface wave, into the circumscribed portion. The controller is also adapted to receive electrical signals from the transducers. The image resolver uses the electrical signals received by the controller in order to construct an image of an object in physical contact with the substrate.

Abstract translation: 声学成像系统包括多个换能器，其设置成外接一部分基底。 声学成像系统还包括控制器和图像解析器。 传感器将电信号转换为机械能和/或机械能转换为电信号。 控制器适于将电信号施加到换能器，换能器作为响应将诸如表面波的机械波引入外接部分。 控制器还适于从换能器接收电信号。 图像解析器使用由控制器接收的电信号，以构建与基板物理接触的物体的图像。