公开(公告)号：KR20180066096A

公开(公告)日：2018-06-18

申请号：KR20187010264

申请日：2016-10-14

Applicant: QUALCOMM INC

Inventor： PANCHAWAGH HRISHIKESH VIJAYKUMAR ,  GANTI SURYAPRAKASH ,  DJORDJEV KOSTADIN DIMITROV ,  BURNS DAVID WILLIAM ,  DICKINSON TIMOTHY ALAN ,  KIDWELL JR DONALD WILLIAM ,  SHENOY RAVINDRA VAMAN ,  LASITER JON BRADLEY ,  TANG HAO YEN ,  LU YIPENG

IPC: H01L41/09 ,  B06B1/02 ,  B06B1/06 ,  G01S7/52 ,  G06F3/043 ,  G06K9/00 ,  H01L27/12 ,  H01L27/20 ,  H01L41/083 ,  H01L41/113 ,  H01L41/311

CPC classification number: H01L27/20 ,  B06B1/0207 ,  B06B1/0607 ,  G01S7/52028 ,  G06F3/0436 ,  G06K9/0002 ,  H01L27/1214 ,  H01L41/1132 ,  H01L41/311

Abstract: 초음파센서픽셀은, 기판, 압전마이크로기계식초음파트랜스듀서(PMUT), 및센서픽셀회로를포함한다. PMUT는, 캐비티위에배치된압전층을포함하는압전층 스택― 캐비티는압전층 스택과기판사이에배치됨―; 압전층과캐비티사이에배치되는기준전극; 및압전층의제1 표면상에또는그에근접하게배치되는수신전극및 송신전극중 하나또는둘 모두를포함하며, 제1 표면은캐비티에대향한다. 센서픽셀회로는기준전극, 수신전극, 및송신전극중 하나이상과전기적으로커플링되고, PMUT 및센서픽셀회로는기판상의센서픽셀회로와통합된다.

公开(公告)号：CA2937756A1

公开(公告)日：2015-08-27

申请号：CA2937756

申请日：2015-02-22

Applicant: QUALCOMM INC

Inventor： GANTI SURYAPRAKASH ,  CHILUKURU SRIKANTH ,  SONG LIVINGSTONE ,  DJORDJEV KOSTADIN DIMITROV ,  KITCHENS JACK CONWAY ,  SCHNEIDER JOHN ,  BUCHAN NICHOLAS IAN ,  FENNELL LEONARD EUGENE ,  PANCHAWAGH HRISHIKESH VIJAYKUMAR ,  HINGER ASHISH ,  KUO NAI-KUEI ,  NARAYANAN KOLLENGODE ,  GUPTA SAMIR KUMAR ,  DICKINSON TIMOTHY ,  HAMEL MAX ,  BURNS DAVID WILLIAM ,  SEZAN MUHAMMED IBRAHIM ,  DANTSKER EUGENE

IPC: G06K9/00

Abstract: Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave.

公开(公告)号：CA2929723C

公开(公告)日：2020-09-15

申请号：CA2929723

申请日：2014-12-12

Applicant: QUALCOMM INC

Inventor： GANTI SURYAPRAKASH ,  BURNS DAVID WILLIAM ,  GRIFFITHS JONATHAN CHARLES

IPC: G06F3/043 ,  G06K9/00

Abstract: An apparatus may include a one- or two-dimensional array of micromechanical ultrasonic transducer (PMUT) elements positioned below, beside, with, on, or above a backplane of a visual display. The backplane may be a thin-film transistor (TFT) backplane. The array of PMUT elements may be a piezoelectric micromechanical ultrasonic transducer (PMUT) array or a capacitive micromechanical ultrasonic transducer (CMUT) array. The PMUT array may be configurable to operate in modes corresponding to multiple frequency ranges. When operating in the low-frequency mode, the apparatus may be capable of gesture detection. A high-frequency mode may include a fingerprint sensor mode or a stylus detection mode.

公开(公告)号：CA3036513A1

公开(公告)日：2018-04-19

申请号：CA3036513

申请日：2017-08-23

Applicant: QUALCOMM INC

Inventor： D'SOUZA SANDEEP LOUIS ,  WINEBRAND VADIM ,  HINGER ASHISH ,  PAN PAUL PENCHIN ,  AGASSY MEIR ,  ABUDI YIZHAQ ,  LAWRENCE MICAH TIMOTHY ,  KIM JONG SOO ,  ANTAO SHERMAN SEBASTIAN ,  WANG BO-REN ,  ROHAM MASOUD ,  MATHE LENNART KARL ,  ALTMAN NATHAN FELIX ,  GANTI SURYAPRAKASH ,  BURNS DAVID WILLIAM

IPC: G06F21/32 ,  G06K9/00

Abstract: Systems, methods and apparatus for configuring a fingerprint sensor to operate in a capacitive sensing mode and an ultrasonic sensing mode are disclosed. A fingerprint sensor may be configured to operate in a capacitive sensing mode by driving a sensing electrode using a controller. In some implementations, an object positioned on or near the sensing electrode may be detected using the fingerprint sensor in the capacitive sensing mode, and the controller can drive electrodes of the fingerprint sensor differently to configure the fingerprint sensor to operate in an ultrasonic sensing mode. In some implementations, an applications processor may be instructed to authenticate a fingerprint of the object from image data obtained when the fingerprint sensor is operating in the ultrasonic sensing mode. In some implementations, a display of a mobile device containing the fingerprint sensor may be unlocked, or the mobile device may be woken up when the fingerprint is authenticated.

公开(公告)号：ES2774312T3

公开(公告)日：2020-07-20

申请号：ES14733473

申请日：2014-06-02

Applicant: QUALCOMM INC

Inventor： SCHNEIDER JOHN ,  KITCHENS JACK ,  GOJEVIC STEPHEN ,  DICKINSON TIMOTHY ,  GUPTA SAMIR ,  DJORDJEV KOSTADIN ,  BURNS DAVID ,  FENNELL LEONARD ,  GANTI SURYAPRAKASH

IPC: G06F3/043

Abstract: Un dispositivo de visualización, que comprende: una pantalla de visualización (4) capaz de proporcionar una imagen; y un sensor de matriz de área ultrasónica (7) unido a un componente de lado posterior de la pantalla de visualización, caracterizado por que el sensor de matriz de área ultrasónica está unido de modo que un área de detección del sensor de matriz de área está en ángulo con respecto a una superficie formadora de imágenes de la pantalla de visualización.

公开(公告)号：SG11201910414UA

公开(公告)日：2020-01-30

申请号：SG11201910414U

申请日：2018-06-14

Applicant: QUALCOMM INC

Inventor： PANCHAWAGH HRISHIKESH VIJAYKUMAR ,  BADGE ILA RAVINDRA ,  LU YIPENG ,  DJORDJEV KOSTADIN DIMITROV ,  GANTI SURYAPRAKASH ,  TSENG CHIN-JEN ,  BUCHAN NICHOLAS IAN ,  KAO TSONGMING ,  FENNELL LEONARD EUGENE ,  SAMMOURA FIRAS ,  STROHMANN JESSICA LIU ,  BURNS DAVID WILLIAM

IPC: G06K9/00 ,  G06F3/043

Abstract: Disclosed are methods, devices, apparatuses, and systems for an under-display ultrasonic fingerprint sensor. A display device may include a platen, a display underlying the platen, and an ultrasonic fingerprint sensor underlying the display, where the ultrasonic fingerprint sensor is configured to transmit and receive ultrasonic waves via an acoustic path through the platen and the display. A light-blocking layer and/or an electrical shielding layer may be provided between the ultrasonic fingerprint sensor and the display, where the light-blocking layer and/or the electrical shielding layer are in the acoustic path. A mechanical stress isolation layer may be provided between the ultrasonic fingerprint sensor and the display, where the mechanical stress isolation layer is in the acoustic path.

公开(公告)号：CA2957218A1

公开(公告)日：2016-03-10

申请号：CA2957218

申请日：2015-09-04

Applicant: QUALCOMM INC

Inventor： DU ELIZA YINGZI ,  CHEN MING YU ,  VURAL ESRA ,  CHAN KWOKLEUNG ,  BURNS DAVID WILLIAM ,  GANTI SURYAPRAKASH ,  SCHNEIDER JOHN KEITH ,  BANDYOPADHYAY SAURAV ,  GU JIN

IPC: G06V30/144 ,  G06T7/00

Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.

公开(公告)号：HUE049182T2

公开(公告)日：2020-09-28

申请号：HUE15708999

申请日：2015-02-22

Applicant: QUALCOMM INC

Inventor： GANTI SURYAPRAKASH ,  CHILUKURU SRIKANTH ,  SONG LIVINGSTONE ,  DJORDJEV KOSTADIN DIMITROV ,  KITCHENS JACK CONWAY ,  SCHNEIDER JOHN ,  BUCHAN NICHOLAS IAN ,  FENNELL LEONARD EUGENE ,  PANCHAWAGH HRISHIKESH VIJAYKUMAR ,  HINGER ASHISH ,  KUO NAI-KUEI ,  NARAYANAN KOLLENGODE ,  GUPTA SAMIR KUMAR ,  DICKINSON TIMOTHY ,  HAMEL MAX ,  BURNS DAVID WILLIAM ,  SEZAN MUHAMMED IBRAHIM ,  DANTSKER EUGENE

IPC: G06K9/00

公开(公告)号：AU2015311785B9

公开(公告)日：2020-05-28

申请号：AU2015311785

申请日：2015-09-04

Applicant: QUALCOMM INC

Inventor： DU ELIZA YINGZI ,  CHEN MING YU ,  VURAL ESRA ,  CHAN KWOKLEUNG ,  BURNS DAVID WILLIAM ,  GANTI SURYAPRAKASH ,  SCHNEIDER JOHN KEITH ,  BANDYOPADHYAY SAURAV ,  GU JIN

IPC: G06V30/144

Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.

公开(公告)号：CA2937756C

公开(公告)日：2019-11-26

申请号：CA2937756

申请日：2015-02-22

Applicant: QUALCOMM INC

Inventor： GANTI SURYAPRAKASH ,  CHILUKURU SRIKANTH ,  SONG LIVINGSTONE ,  DJORDJEV KOSTADIN DIMITROV ,  KITCHENS JACK CONWAY ,  SCHNEIDER JOHN ,  BUCHAN NICHOLAS IAN ,  FENNELL LEONARD EUGENE ,  PANCHAWAGH HRISHIKESH VIJAYKUMAR ,  HINGER ASHISH ,  KUO NAI-KUEI ,  NARAYANAN KOLLENGODE ,  GUPTA SAMIR KUMAR ,  DICKINSON TIMOTHY ,  HAMEL MAX ,  BURNS DAVID WILLIAM ,  SEZAN MUHAMMED IBRAHIM ,  DANTSKER EUGENE

IPC: G06K9/00

Abstract: Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave.