公开(公告)号：US10929636B2

公开(公告)日：2021-02-23

申请号：US16252408

申请日：2019-01-18

Applicant: QUALCOMM Incorporated

Inventor： Yipeng Lu ,  Hrishikesh Vijaykumar Panchawagh ,  Kostadin Dimitrov Djordjev ,  Chin-Jen Tseng ,  Nicholas Ian Buchan ,  Tsongming Kao ,  Jae Hyeong Seo

IPC: G06K9/00

Abstract: An ultrasonic fingerprint sensor system of the present disclosure may be provided with a thick electrically nonconductive acoustic layer and thin electrode layer coupled to a piezoelectric layer of an ultrasonic transmitter or transceiver. The thick electrically nonconductive acoustic layer may have a high density or high acoustic impedance value, and may be adjacent to the piezoelectric layer. The thin electrode layer may be divided into electrode segments. The ultrasonic fingerprint sensor system may use flexible or rigid substrates, and may use an ultrasonic transceiver or an ultrasonic transmitter separate from an ultrasonic receiver.

公开(公告)号：US10410034B2

公开(公告)日：2019-09-10

申请号：US15804902

申请日：2017-11-06

Applicant: QUALCOMM Incorporated

Inventor： Jessica Liu Strohmann ,  Yipeng Lu ,  Ashish Hinger ,  David William Burns

IPC: G06K9/20 ,  G06K9/00 ,  G06F21/32

Abstract: A system may include a fingerprint sensor system and a control system. The system may be configured to transmit an ultrasonic wave including a first frequency. The control system may be configured to obtain dermis layer image data from a target object based on reflected portions of the ultrasonic waves received by the fingerprint sensor system. The dermis layer image data may correspond to ultrasonic waves received from the target object within a time interval corresponding with the dermis layer. The reflected portions of the ultrasonic wave corresponding to the dermis layer image data may include ultrasonic waves at a second frequency that is an integer multiple of the first frequency. The control system may be configured to determine whether a magnitude of the ultrasonic waves at the second frequency exceeds a harmonic threshold and, if the magnitude exceeds the harmonic threshold, the control system may perform an authentication process.

公开(公告)号：US10235551B2

公开(公告)日：2019-03-19

申请号：US15149046

申请日：2016-05-06

Applicant: QUALCOMM Incorporated

Inventor： Yipeng Lu ,  David William Burns

IPC: G06K9/00 ,  G01N29/14 ,  G06F21/32

Abstract: A biometric system may include an ultrasonic sensor array, a light source system and a control system. Some implementations may include an ultrasonic transmitter. The control system may be capable of controlling the light source system to emit light and of receiving signals from the ultrasonic sensor array corresponding to acoustic waves emitted from portions of a target object in response to being illuminated with the light emitted by the light source system. The control system may be capable of performing a user authentication process that is based, at least in part, on the signals from the ultrasonic sensor array.

公开(公告)号：US10001552B2

公开(公告)日：2018-06-19

申请号：US14883583

申请日：2015-10-14

Applicant: QUALCOMM Incorporated

Inventor： Hrishikesh Vijaykumar Panchawagh ,  Hao-Yen Tang ,  Yipeng Lu ,  Kostadin Dimitrov Djordjev ,  Suryaprakash Ganti ,  David William Burns ,  Ravindra Vaman Shenoy ,  Jon Bradley Lasiter ,  Nai-Kuei Kuo ,  Firas Sammoura

IPC: H01L41/09 ,  H01L41/113 ,  B06B1/06 ,  G01S7/52 ,  H01L41/047 ,  G10K11/34 ,  G06F3/041 ,  G06F3/043 ,  G06K9/00 ,  G10K11/26 ,  G01S7/521 ,  G01S15/04 ,  G01S15/89 ,  H01L41/08 ,  B06B1/02

CPC classification number: G01S7/5208 ,  B06B1/0207 ,  B06B1/0607 ,  B06B1/0644 ,  B06B1/0666 ,  B06B2201/20 ,  B06B2201/55 ,  G01S7/521 ,  G01S15/04 ,  G01S15/89 ,  G01S15/8915 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/043 ,  G06F3/0436 ,  G06F2203/04101 ,  G06K9/0002 ,  G06K9/00335 ,  G10K11/26 ,  G10K11/34 ,  G10K11/341 ,  G10K11/346 ,  H01L41/047 ,  H01L41/08

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.

公开(公告)号：US20160131747A1

公开(公告)日：2016-05-12

申请号：US14883585

申请日：2015-10-14

Applicant: QUALCOMM Incorporated

Inventor： Hao-Yen Tang ,  Yipeng Lu ,  Hrishikesh Vijaykumar Panchawagh

IPC: G01S7/52 ,  G10K11/34

CPC classification number: G01S7/5208 ,  B06B1/0207 ,  B06B1/0607 ,  B06B1/0644 ,  B06B1/0666 ,  B06B2201/20 ,  B06B2201/55 ,  G01S7/521 ,  G01S15/04 ,  G01S15/89 ,  G01S15/8915 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/043 ,  G06F3/0436 ,  G06F2203/04101 ,  G06K9/0002 ,  G06K9/00335 ,  G10K11/26 ,  G10K11/34 ,  G10K11/341 ,  G10K11/346 ,  H01L41/047 ,  H01L41/08

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一第一组 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。

公开(公告)号：US11798307B2

公开(公告)日：2023-10-24

申请号：US17446436

申请日：2021-08-30

Applicant: QUALCOMM Incorporated

Inventor： Shiang-Chi Lin ,  Hrishikesh Vijaykumar Panchawagh ,  Jessica Liu Strohmann ,  Yipeng Lu ,  Chin-Jen Tseng ,  Kostadin Dimitrov Djordjev ,  Min-Lun Yang ,  Chia-Wei Yang

IPC: G06V40/13 ,  G01S7/52 ,  G06F21/32

CPC classification number: G06V40/1306 ,  G01S7/52079 ,  G06F21/32

Abstract: An apparatus may include an ultrasonic sensor stack, a foldable display stack and a transmission enhancement layer. The foldable display stack may include a display stiffener and display stack layers. The display stack layers may form one or more display stack resonators configured to enhance ultrasonic waves transmitted by the ultrasonic sensor stack in a first ultrasonic frequency range. In some implementations, a transmission enhancement resonator may include the display stiffener and the transmission enhancement layer. In some examples, the transmission enhancement resonator may include at least a portion of the ultrasonic sensor stack. The transmission enhancement resonator may be configured to enhance the ultrasonic waves transmitted by the ultrasonic sensor stack in the first ultrasonic frequency range.

公开(公告)号：US20210158002A1

公开(公告)日：2021-05-27

申请号：US16691416

申请日：2019-11-21

Applicant: QUALCOMM Incorporated

Inventor： Jack Conway Kitchens ,  John Keith Schneider ,  Stephen Michael Gojevic ,  Evan Michael Breloff ,  James Anthony Miranto ,  Emily Kathryn Brooks ,  Fitzgerald John Archibald ,  Alexei Stoianov ,  Raj Kumar ,  Sai Praneeth Sreeram ,  Nirma Lnu ,  Sandeep Louis D'Souza ,  Nicholas Ian Buchan ,  Yipeng Lu ,  Chin-Jen Tseng ,  Hrishikesh Vijaykumar Panchawagh

IPC: G06K9/00 ,  G02B1/00

Abstract: An apparatus may include a cover layer, a layer of first metamaterial proximate (or in) the cover layer, a light source system configured for providing light to the layer of first metamaterial and a receiver system. The first metamaterial may include nanoparticles configured to create ultrasonic waves when illuminated by light. The receiver system may include an ultrasonic receiver system configured to receive ultrasonic waves reflected from a target object in contact with, or proximate, a surface of the cover layer. The control system may be configured to receive ultrasonic receiver signals from the ultrasonic receiver system corresponding to the ultrasonic waves reflected from the target object and to perform an authentication process and/or an imaging process that is based, at least in part, on the ultrasonic receiver signals.

公开(公告)号：US10515255B2

公开(公告)日：2019-12-24

申请号：US15469326

申请日：2017-03-24

Applicant: QUALCOMM Incorporated

Inventor： Jessica Liu Strohmann ,  Yair Karmi ,  Yipeng Lu ,  Hrishikesh Vijaykumar Panchawagh ,  David William Burns

IPC: G06K9/00

Abstract: An apparatus may include an ultrasonic sensor system, a platen, a set of bioimpedance electrodes proximate the platen and a control system configured for communication with the ultrasonic sensor system and the set of bioimpedance electrodes. The control system may be further configured for controlling the ultrasonic sensor system to transmit ultrasonic waves, receiving ultrasonic sensor signals from the ultrasonic sensor system corresponding to ultrasonic waves reflected from a portion of a body in contact with the platen, receiving bioimpedance measurements from the set of bioimpedance electrodes and estimating a status of one or more biometric indicators of the portion of the body based on the ultrasonic sensor signals and the bioimpedance measurements.

公开(公告)号：US20180373913A1

公开(公告)日：2018-12-27

申请号：US16006640

申请日：2018-06-12

Applicant: QUALCOMM Incorporated

Inventor： Hrishikesh Vijaykumar Panchawagh ,  Ila Ravindra Badge ,  Yipeng Lu ,  Kostadin Dimitrov Djordjev ,  Suryaprakash Ganti ,  Chin-Jen Tseng ,  Nicholas Ian Buchan ,  Tsongming Kao ,  Leonard Eugene Fennell ,  Firas Sammoura ,  Jessica Liu Strohmann ,  David William Burns

IPC: G06K9/00 ,  G01S15/89 ,  G01S7/52 ,  H01L27/32 ,  H01L51/00 ,  B06B1/06

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：US20180276440A1

公开(公告)日：2018-09-27

申请号：US15469313

申请日：2017-03-24

Applicant: QUALCOMM Incorporated

Inventor： Jessica Liu Strohmann ,  Yair Karmi ,  Yipeng Lu ,  Hrishikesh Vijaykumar Panchawagh ,  David William Burns

IPC: G06K9/00

Abstract: Some disclosed methods involve controlling an ultrasonic sensor system to transmit ultrasonic waves and receiving signals from the ultrasonic sensor system corresponding to ultrasonic waves reflected from a finger positioned on a platen. The methods may involve obtaining fingerprint image data corresponding to the signals and determining a change in a force of at least a portion of the finger on the platen corresponding to the signals.