CN108140106A - 用于超声波图像传感器的接收侧波束成形 - Google Patents

用于超声波图像传感器的接收侧波束成形 Download PDF

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Publication number
CN108140106A
CN108140106A CN201680054866.8A CN201680054866A CN108140106A CN 108140106 A CN108140106 A CN 108140106A CN 201680054866 A CN201680054866 A CN 201680054866A CN 108140106 A CN108140106 A CN 108140106A
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China
Prior art keywords
pixel
output signal
group
ultrasonic
plane wave
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Pending
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CN201680054866.8A
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English (en)
Chinese (zh)
Inventor
K·D·乔尔杰夫
C·M·W·达夫特
D·W·伯恩斯
A·欣吉尔
H·V·班差瓦加
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Qualcomm Inc
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Qualcomm Inc
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88Sonar systems specially adapted for specific applications
    • G01S15/89Sonar systems specially adapted for specific applications for mapping or imaging
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52079Constructional features
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88Sonar systems specially adapted for specific applications
    • G01S15/89Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88Sonar systems specially adapted for specific applications
    • G01S15/89Sonar systems specially adapted for specific applications for mapping or imaging
    • G01S15/8906Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
    • G01S15/895Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum
    • G01S15/8956Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum using frequencies at or above 20 MHz
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/521Constructional features
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12Fingerprints or palmprints
    • G06V40/13Sensors therefor
    • G06V40/1306Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Image Input (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Transducers For Ultrasonic Waves (AREA)
CN201680054866.8A 2015-09-24 2016-08-12 用于超声波图像传感器的接收侧波束成形 Pending CN108140106A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US14/864,555 2015-09-24
US14/864,555 US10067229B2 (en) 2015-09-24 2015-09-24 Receive-side beam forming for an ultrasonic image sensor
PCT/US2016/046879 WO2017052836A1 (en) 2015-09-24 2016-08-12 Receive-side beam forming for an ultrasonic image sensor

Publications (1)

Publication Number Publication Date
CN108140106A true CN108140106A (zh) 2018-06-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201680054866.8A Pending CN108140106A (zh) 2015-09-24 2016-08-12 用于超声波图像传感器的接收侧波束成形

Country Status (7)

Country Link
US (1) US10067229B2 (enExample)
EP (1) EP3353708B1 (enExample)
JP (1) JP2018535712A (enExample)
KR (1) KR20180059504A (enExample)
CN (1) CN108140106A (enExample)
CA (1) CA2997085A1 (enExample)
WO (1) WO2017052836A1 (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110008897A (zh) * 2019-04-02 2019-07-12 京东方科技集团股份有限公司 超声传感器像素电路及其驱动方法以及显示面板
CN110412587A (zh) * 2019-07-19 2019-11-05 中国科学院声学研究所 一种基于解卷积的下视合成孔径三维成像方法及系统
CN113168531A (zh) * 2019-09-24 2021-07-23 指纹卡有限公司 超声生物计量成像系统和用于控制超声生物计量成像系统的方法
US11238261B2 (en) 2019-12-20 2022-02-01 Boe Technology Group Co., Ltd. Ultrasonic fingerprint recognition method, device and system, display device and storage medium
EP3973442A4 (en) * 2019-05-21 2023-01-11 BOE Technology Group Co., Ltd. SENSOR CIRCUIT FOR GENERATION AND DETECTION OF AN ULTRASOUND MEASUREMENT SIGNAL, DISPLAY DEVICE FOR ULTRASOUND MEASUREMENTS

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10325131B2 (en) * 2015-06-30 2019-06-18 Synaptics Incorporated Active matrix capacitive fingerprint sensor for display integration based on charge sensing by a 2-TFT pixel architecture
US9726755B2 (en) * 2015-09-23 2017-08-08 Qualcomm Incorporated Spoof detection by ultrasonic subdermal probe
US10067229B2 (en) * 2015-09-24 2018-09-04 Qualcomm Incorporated Receive-side beam forming for an ultrasonic image sensor
KR102391478B1 (ko) * 2015-11-17 2022-04-28 삼성디스플레이 주식회사 화소, 화소를 포함하는 디스플레이 패널 및 디스플레이 패널의 제작 방법
US10366269B2 (en) * 2016-05-06 2019-07-30 Qualcomm Incorporated Biometric system with photoacoustic imaging
US10235551B2 (en) 2016-05-06 2019-03-19 Qualcomm Incorporated Biometric system with photoacoustic imaging
KR102670998B1 (ko) * 2016-08-02 2024-05-30 삼성전자주식회사 화면 내장형 지문 센서의 출력 신호들을 리드아웃하는 아날로그 프론트 엔드와 이를 포함하는 장치
KR102568386B1 (ko) * 2016-09-30 2023-08-21 삼성디스플레이 주식회사 터치 센서를 포함하는 표시 장치
US9953205B1 (en) * 2017-04-28 2018-04-24 The Board Of Trustees Of The Leland Stanford Junior University Acoustic biometric touch scanner
US10489627B2 (en) 2017-04-28 2019-11-26 The Board Of Trustees Of The Leland Stanford Junior University Acoustic biometric touch scanner
US10846501B2 (en) 2017-04-28 2020-11-24 The Board Of Trustees Of The Leland Stanford Junior University Acoustic biometric touch scanner
US20180373913A1 (en) 2017-06-26 2018-12-27 Qualcomm Incorporated Ultrasonic fingerprint sensor for under-display applications
EP3425423A1 (en) * 2017-07-06 2019-01-09 Esaote S.p.A. Ultrasound method and system for extracting signal components relating to spatial locations in a target region in the spatial and temporal frequency domain
CN107506704B (zh) * 2017-08-09 2021-06-08 深圳天珑无线科技有限公司 移动终端及其指纹检测方法
KR102724372B1 (ko) 2017-08-09 2024-10-30 더 보드 오브 트러스티즈 오프 더 리랜드 스탠포드 쥬니어 유니버시티 인터랙티브 생체 터치 스캐너
US10503955B2 (en) * 2017-08-29 2019-12-10 Synaptics Incorporated Device with improved circuit positioning
CN109492470B (zh) * 2017-09-12 2023-02-03 江西欧迈斯微电子有限公司 超声波传感器及电子装置
US10775500B2 (en) 2017-09-14 2020-09-15 Qualcomm Incorporated Ultrasonic transducer pixel readout circuitry and methods for ultrasonic phase imaging
US10705656B2 (en) * 2017-09-29 2020-07-07 Qualcomm Incorporated System and method for ultrasonic sensing
CN109769084B (zh) * 2017-11-02 2020-12-11 联咏科技股份有限公司 图像感测装置
EP3729331A4 (en) * 2017-12-21 2021-03-03 Fingerprint Cards AB DISPLAY ARRANGEMENT INCLUDING ULTRASOUND BIOMETRIC DETECTION SYSTEM AND METHOD FOR MANUFACTURING THE DISPLAY ARRANGEMENT
US10846502B2 (en) * 2018-04-20 2020-11-24 Invensense, Inc. Ultrasonic fingerprint sensor with a non-uniform contact layer
CN108446685B (zh) * 2018-05-24 2024-07-26 京东方科技集团股份有限公司 超声波指纹识别模组及其制备方法和显示装置
CN110716115B (zh) * 2018-06-27 2021-01-22 京东方科技集团股份有限公司 超声波信号检测电路、超声波信号检测方法、显示面板
US11126814B2 (en) 2018-10-17 2021-09-21 Qualcomm Incorporated Ultrasonic fingerprint sensor with flexible substrate
EP3644092A1 (en) * 2018-10-24 2020-04-29 IMEC vzw Ultrasound imaging using a null subtraction imaging technique
KR102631414B1 (ko) * 2018-11-23 2024-01-29 엘지디스플레이 주식회사 센싱장치 및 디스플레이 장치
KR102526492B1 (ko) * 2018-11-23 2023-04-27 엘지전자 주식회사 이동 단말기
US10929636B2 (en) 2019-01-18 2021-02-23 Qualcomm Incorporated Ultrasonic fingerprint sensor with electrically nonconductive acoustic layer
CN109614963B (zh) * 2019-01-28 2023-08-29 京东方科技集团股份有限公司 指纹识别结构以及显示装置
EP3915045B1 (en) * 2019-02-21 2025-10-15 Next Biometrics Group ASA Method of detecting replay attacks in a fingerprint sensor system
US10891458B2 (en) * 2019-02-28 2021-01-12 Qualcomm Incorporated Module architecture for large area ultrasonic fingerprint sensor
CN111695386B (zh) * 2019-03-15 2024-04-26 虹软科技股份有限公司 一种指纹图像增强、指纹识别和应用程序启动方法
US10817694B2 (en) * 2019-03-22 2020-10-27 Qualcomm Incorporated Reducing background signal in imaging sensors
CN109872683B (zh) * 2019-03-28 2020-08-25 京东方科技集团股份有限公司 一种像素电路、显示面板及驱动方法
KR102472120B1 (ko) * 2019-05-03 2022-11-28 메이 선 테크놀로지 씨오 엘티디 의사-압전 d33 진동 장치 및 이를 통합하는 디스플레이
US11545612B2 (en) * 2019-05-03 2023-01-03 May Sun Technology Co., Ltd. Pseudo-piezoelectric D33 device and electronic device using the same
CN113994392A (zh) * 2019-06-10 2022-01-28 指纹卡安娜卡敦知识产权有限公司 超声成像设备及超声设备中图像获取的方法
SE1950681A1 (en) * 2019-06-10 2020-12-11 Fingerprint Cards Ab Ultrasonic imaging device and method for image acquisition in the ultrasonic device
SE1950682A1 (en) * 2019-06-10 2020-12-11 Fingerprint Cards Ab Ultrasonic imaging device and method for image acquisition in the ultrasonic device
KR102792090B1 (ko) * 2019-06-25 2025-04-07 삼성디스플레이 주식회사 초음파 감지 장치와 이를 포함하는 표시 장치
TWI727507B (zh) * 2019-11-19 2021-05-11 瑞昱半導體股份有限公司 信號處理裝置與信號處理方法
CN112953562B (zh) * 2019-11-26 2024-02-09 瑞昱半导体股份有限公司 信号处理装置与信号处理方法
US11093090B2 (en) * 2019-12-06 2021-08-17 Fingerprint Cards Ab TFT-based fingerprint sensing system with corrected read-out
US11276251B2 (en) * 2020-06-23 2022-03-15 Qualcomm Incorporated Selective fingerprint sensor activation
KR20220008402A (ko) 2020-07-09 2022-01-21 삼성디스플레이 주식회사 초음파 지문 센서, 및 이를 이용한 초음파 지문 센싱 방법
TWM616810U (zh) * 2020-07-20 2021-09-11 神盾股份有限公司 指紋感測裝置
TWI750011B (zh) * 2021-01-19 2021-12-11 友達光電股份有限公司 超音波驅動電路
CN112883828B (zh) * 2021-01-28 2022-08-16 厦门天马微电子有限公司 一种超声指纹识别电路、显示面板、显示设备及驱动方法
CN113903061B (zh) * 2021-10-08 2024-05-24 上海天马微电子有限公司 显示面板的指纹识别方法、显示面板及显示装置
KR20230099334A (ko) * 2021-12-27 2023-07-04 현대모비스 주식회사 차량용 이중대역 초음파 감지장치 및 그 제어방법
JP2023173685A (ja) * 2022-05-26 2023-12-07 上海天馬微電子有限公司 超音波センサ装置及びその制御方法
CN115661870B (zh) * 2022-09-16 2024-03-15 深圳市汇顶科技股份有限公司 超声指纹识别的方法、超声指纹装置和电子设备
CN117995097A (zh) * 2022-11-04 2024-05-07 广州印芯半导体技术有限公司 显示装置

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5587533A (en) * 1990-11-07 1996-12-24 Ultra-Scan Corporation Surface feature mapping using high resolution C-scan ultrasonography
CN1712988A (zh) * 2004-06-21 2005-12-28 通用电气公司 自适应超声成像系统
CN101467893A (zh) * 2007-12-26 2009-07-01 株式会社东芝 超声波诊断装置、超声波图像处理装置及方法
CN101683274A (zh) * 2008-09-25 2010-03-31 深圳迈瑞生物医疗电子股份有限公司 偏转凸阵数字扫描变换和凸阵空间复合的方法及成像系统
US20120206585A1 (en) * 2006-05-25 2012-08-16 Ultra-Scan Corporation Biometric Scanner With Waveguide Array
CN103548035A (zh) * 2010-10-08 2014-01-29 苹果公司 包括差分测量电路的手指感测设备和相关方法
CN104052942A (zh) * 2013-03-13 2014-09-17 英特尔公司 改进的图像传感器像素校正技术
US20140355387A1 (en) * 2013-06-03 2014-12-04 Qualcomm Incorporated Ultrasonic receiver with coated piezoelectric layer
CN104668175A (zh) * 2013-11-29 2015-06-03 精工爱普生株式会社 超声波换能器装置、超声波测量装置及超声波图像装置
US20150165479A1 (en) * 2013-12-12 2015-06-18 Qualcomm Incorporated Piezoelectric ultrasonic transducer and process
CN104866813A (zh) * 2015-04-17 2015-08-26 麦克思股份有限公司 指纹识别装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110279662A1 (en) * 2010-05-11 2011-11-17 Schneider John K Reflex Longitudinal Imaging Using Through Sensor Insonification
US8539837B2 (en) 2010-12-10 2013-09-24 Palo Alto Research Center Incorporated Ultrasonic imaging using thin film transistor backplane
KR101288178B1 (ko) 2011-11-30 2013-07-19 삼성전기주식회사 지문 인식 센서 및 지문 인식 방법
US20140359757A1 (en) 2013-06-03 2014-12-04 Qualcomm Incorporated User authentication biometrics in mobile devices
CN105745669A (zh) * 2013-11-04 2016-07-06 高通股份有限公司 移动装置中的用户验证生物计量技术
US9817108B2 (en) * 2014-01-13 2017-11-14 Qualcomm Incorporated Ultrasonic imaging with acoustic resonant cavity
US10503948B2 (en) * 2014-03-06 2019-12-10 Qualcomm Incorporated Multi-spectral ultrasonic imaging
CA2950919A1 (en) * 2014-07-08 2016-01-14 Qualcomm Incorporated Piezoelectric ultrasonic transducer and process
US9995821B2 (en) * 2014-10-15 2018-06-12 Qualcomm Incorporated Active beam-forming technique for piezoelectric ultrasonic transducer array
US9726755B2 (en) * 2015-09-23 2017-08-08 Qualcomm Incorporated Spoof detection by ultrasonic subdermal probe
US10067229B2 (en) * 2015-09-24 2018-09-04 Qualcomm Incorporated Receive-side beam forming for an ultrasonic image sensor
US10140534B2 (en) * 2015-09-26 2018-11-27 Qualcomm Incorporated Ultrasonic imaging devices and methods
US10497748B2 (en) * 2015-10-14 2019-12-03 Qualcomm Incorporated Integrated piezoelectric micromechanical ultrasonic transducer pixel and array

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5587533A (en) * 1990-11-07 1996-12-24 Ultra-Scan Corporation Surface feature mapping using high resolution C-scan ultrasonography
CN1712988A (zh) * 2004-06-21 2005-12-28 通用电气公司 自适应超声成像系统
US20120206585A1 (en) * 2006-05-25 2012-08-16 Ultra-Scan Corporation Biometric Scanner With Waveguide Array
CN101467893A (zh) * 2007-12-26 2009-07-01 株式会社东芝 超声波诊断装置、超声波图像处理装置及方法
CN101683274A (zh) * 2008-09-25 2010-03-31 深圳迈瑞生物医疗电子股份有限公司 偏转凸阵数字扫描变换和凸阵空间复合的方法及成像系统
CN103548035A (zh) * 2010-10-08 2014-01-29 苹果公司 包括差分测量电路的手指感测设备和相关方法
CN104052942A (zh) * 2013-03-13 2014-09-17 英特尔公司 改进的图像传感器像素校正技术
US20140355387A1 (en) * 2013-06-03 2014-12-04 Qualcomm Incorporated Ultrasonic receiver with coated piezoelectric layer
CN104668175A (zh) * 2013-11-29 2015-06-03 精工爱普生株式会社 超声波换能器装置、超声波测量装置及超声波图像装置
US20150165479A1 (en) * 2013-12-12 2015-06-18 Qualcomm Incorporated Piezoelectric ultrasonic transducer and process
CN104866813A (zh) * 2015-04-17 2015-08-26 麦克思股份有限公司 指纹识别装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
YIMIN D.ZHANG,ET AL.: "Ultrasonic Flaw Imaging via Multipath Exploitation", 《ADVANCES IN ACOUSTICS AND VIBRATION》 *
夏新源 等: "医学超声成像中相位畸变条件下的最小方差自适应波束形成方法", 《中国科学院声学研究所纪念建所50周年暨第五届学术交流会》 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110008897A (zh) * 2019-04-02 2019-07-12 京东方科技集团股份有限公司 超声传感器像素电路及其驱动方法以及显示面板
US11398106B2 (en) 2019-04-02 2022-07-26 Boe Technology Group Co., Ltd. Ultrasonic sensor pixel circuit, driving method thereof and display panel
EP3973442A4 (en) * 2019-05-21 2023-01-11 BOE Technology Group Co., Ltd. SENSOR CIRCUIT FOR GENERATION AND DETECTION OF AN ULTRASOUND MEASUREMENT SIGNAL, DISPLAY DEVICE FOR ULTRASOUND MEASUREMENTS
CN110412587A (zh) * 2019-07-19 2019-11-05 中国科学院声学研究所 一种基于解卷积的下视合成孔径三维成像方法及系统
CN110412587B (zh) * 2019-07-19 2021-04-09 中国科学院声学研究所 一种基于解卷积的下视合成孔径三维成像方法及系统
CN113168531A (zh) * 2019-09-24 2021-07-23 指纹卡有限公司 超声生物计量成像系统和用于控制超声生物计量成像系统的方法
US11238261B2 (en) 2019-12-20 2022-02-01 Boe Technology Group Co., Ltd. Ultrasonic fingerprint recognition method, device and system, display device and storage medium

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US10067229B2 (en) 2018-09-04
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