知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

36 records (took 0.019 seconds)

    ULTRASONIC RECEIVER WITH COATED PIEZOELECTRIC LAYER
    2.
    发明申请
    ULTRASONIC RECEIVER WITH COATED PIEZOELECTRIC LAYER 审中-公开
    超声波接收器与涂层压电层

    公开(公告)号：US20140355387A1

    公开(公告)日：2014-12-04

    申请号：US14175876

    申请日：2014-02-07

    Applicant: QUALCOMM Incorporated

    Inventor： Jack Conway Kitchens, II ,  John Keith Schneider ,  Stephen Michael Gojevic

    IPC: H04R17/00 ,  A61B5/117

    CPC classification number: H04R17/005 ,  A61B5/1172 ,  B06B1/0688 ,  G01H1/00 ,  G01H11/08 ,  G06K9/0002

    Abstract: This disclosure provides systems, methods and apparatus related to an ultrasonic receiver for detecting ultrasonic energy received at a first surface of the ultrasonic receiver. The ultrasonic receiver includes an array of pixel circuits disposed on a substrate, each pixel circuit in the array including at least one thin film transistor (TFT) element and having a pixel input electrode electrically coupled to the pixel circuit. The ultrasonic receiver is fabricated by forming a piezoelectric layer so as to be in electrical contact with the pixel input electrodes. Forming the piezoelectric layer includes coating a solution containing a polymer onto the array of pixel circuits, crystallizing the polymer to form a crystallized polymer layer and poling the crystallized polymer layer.

    Abstract translation: 本公开提供了与用于检测在超声波接收器的第一表面处接收的超声能量的超声波接收器有关的系统，方法和装置。 超声波接收器包括设置在基板上的像素电路阵列，阵列中的每个像素电路包括至少一个薄膜晶体管（TFT）元件，并且具有电耦合到像素电路的像素输入电极。 通过形成压电层以与像素输入电极电接触来制造超声波接收器。 形成压电层包括将包含聚合物的溶液涂覆到像素电路阵列上，使聚合物结晶以形成结晶的聚合物层并极化结晶的聚合物层。

    ULTRASONIC IMAGING DEVICES AND METHODS
    4.
    发明申请
    ULTRASONIC IMAGING DEVICES AND METHODS 审中-公开

    公开(公告)号：US20190057267A1

    公开(公告)日：2019-02-21

    申请号：US16167415

    申请日：2018-10-22

    Applicant: QUALCOMM Incorporated

    Inventor： Jack Conway Kitchens, II ,  John Keith Schneider ,  Stephen Michael Gojevic ,  Philip John Schneider ,  Evan Michael Breloff ,  Ashish Hinger ,  David William Burns ,  Muhammed Ibrahim Sezan

    IPC: G06K9/00

    Abstract: An apparatus may include an ultrasonic sensor array and a control system. The control system may be configured to acquire first image data generated by the ultrasonic sensor array corresponding to at least one first reflected ultrasonic wave received by at least a portion of the ultrasonic sensor array from a target object during a first acquisition time window. The control system may be configured to acquire second image data generated by the ultrasonic sensor array corresponding to at least one second reflected ultrasonic wave received by at least a portion of the ultrasonic sensor array from the target object during a second acquisition time window that is longer than the first acquisition time window. The control system may further be configured to initiate an authentication process based on the first image data and the second image data.

    Spoof Detection By Ultrasonic Subdermal Probe
    6.
    发明申请
    Spoof Detection By Ultrasonic Subdermal Probe 有权

    公开(公告)号：US20170082740A1

    公开(公告)日：2017-03-23

    申请号：US14863114

    申请日：2015-09-23

    Applicant: QUALCOMM Incorporated

    Inventor： Jack Conway Kitchens, II ,  John Keith Schneider ,  Stephen Michael Gojevic ,  Timothy Alan Dickinson ,  Phillip John Schneider ,  Evan Breloff ,  Evan Robert Hildreth

    IPC: G01S7/539

    CPC classification number: G01S7/539 ,  G06K9/00107 ,  G06K9/0012 ,  G06K9/00899

    Abstract: Methods and systems of determining whether an object is alive, and therefore part of a live individual, are described. An object having an outer surface (e.g. a friction-ridge surface of a finger) and internal parts (e.g. tissue layer, papillae, blood vessels, fat, muscle, nail and bone) is scanned by a system having a transmitter, receiver and computer. One such system has a substantially planar piezoelectric transmit-layer, an ultrasonic receiver array having a plurality of receivers, and a platen. The transmit layer is caused to produce an ultrasound plane-wave traveling toward the object residing on the platen. Using the ultrasonic receiver, ultrasonic energy that has been reflected from the object is detected. The detected ultrasonic energy is analyzed to provide an analysis result, and the analysis result is compared to a template. A determination is made as to whether the analysis result and the template are similar, and the object is declared to be alive if the analysis result is determined to be similar to the template.

    Multiple Electrode Plane Wave Generator
    7.
    发明申请
    Multiple Electrode Plane Wave Generator 有权
    多电极平面波发生器

    公开(公告)号：US20160233407A1

    公开(公告)日：2016-08-11

    申请号：US14557223

    申请日：2014-12-01

    Applicant: QUALCOMM Incorporated

    Inventor： John Keith Schneider ,  Jack Conway Kitchens, II

    IPC: H01L41/047 ,  H01L41/107

    CPC classification number: H01L41/047 ,  B06B1/0611 ,  H01L41/107

    Abstract: The invention may be embodied as an ultrasonic plane wave generator having a first sheet of piezoelectric material and a second sheet of piezoelectric material. A shared electrode may be between the first sheet and the second sheet. A first electrode set may have a plurality of electrodes, and these electrodes may be positioned with respect to the first sheet to form a set of wave generators. A wave generator in this first wave generator set may include the shared electrode, the first sheet, and one of the electrodes in the first electrode set. A second electrode set may have a plurality of electrodes, and these electrodes may be positioned with respect to the second sheet to form another set of wave generators. A wave generator in this second wave generator set may include the shared electrode, the second sheet, and one of the electrodes in the second electrode set.

    Abstract translation: 本发明可以实现为具有第一压电材料片和第二压电材料片的超声波平面波发生器。 共享电极可以在第一片和第二片之间。 第一电极组可以具有多个电极，并且这些电极可以相对于第一片定位以形成一组波发生器。 该第一波发生器组中的波发生器可以包括共享电极，第一片和第一电极组中的一个电极。 第二电极组可以具有多个电极，并且这些电极可以相对于第二片定位以形成另一组波发生器。 该第二波发生器组中的波发生器可以包括共享电极，第二片和第二电极组中的一个电极。

Patent Agency Ranking