公开(公告)号：US20240210359A1

公开(公告)日：2024-06-27

申请号：US18069901

申请日：2022-12-21

申请人： QUALCOMM Incorporated

发明人： Sumit AGRAWAL ,  Ali LOPEZ ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Kostadin Dimitrov DJORDJEV ,  Camilo PEREZ SAAIBI ,  Legardo REYES ,  Nicholas BUCHAN ,  Ila BADGE ,  Chin-Jen TSENG

IPC分类号： G01N29/24 ,  G01N21/01 ,  G01N21/17 ,  G01N21/88 ,  G01N29/22

CPC分类号： G01N29/2418 ,  G01N21/01 ,  G01N21/1702 ,  G01N21/8806 ,  G01N29/223 ,  G01N2021/0106 ,  G01N2021/8845

摘要： An apparatus may include a platen, a light source system and a receiver system. The light source system may at least a first light-emitting component and at least a first light guide component. The first light guide component may be configured to transmit light from the first light-emitting component towards a target object in contact with a first area of the platen. The receiver system may include at least two receiver stack portions. A first receiver stack portion may reside proximate a first side of a first portion of the first light guide component and a second receiver stack portion may reside proximate a second side of the first portion of the first light guide component. The receiver system may be configured to detect acoustic waves corresponding to a photoacoustic response of the target object to light emitted by the light source system.

公开(公告)号：US20210056276A1

公开(公告)日：2021-02-25

申请号：US16544681

申请日：2019-08-19

申请人： QUALCOMM Incorporated

发明人： Yipeng LU ,  Jessica Liu STROHMANN ,  Ila BADGE ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Tsongming KAO

IPC分类号： G06K9/00

摘要： A device and method for improved sensing with a biometric sensor assembly such as an ultrasound fingerprint sensor using an anti-fingerprint, oleophobic, or hydrophobic coating applied to a surface above the biometric sensor assembly. The coating improves the mechanical coupling of a human finger to the surface, helping to reduce acoustic loss through the finger to surface interface, improving at least the false-rejection ratio.

公开(公告)号：US20240206736A1

公开(公告)日：2024-06-27

申请号：US18069859

申请日：2022-12-21

申请人： QUALCOMM Incorporated

发明人： Yipeng LU ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Nicholas BUCHAN ,  Kostadin Dimitrov DJORDJEV ,  Camilo PEREZ SAAIBI ,  Legardo REYES ,  Ali LOPEZ ,  Ila BADGE ,  Chin-Jen Tseng ,  Ye ZHAN ,  John Keith Schneider

IPC分类号： A61B5/00 ,  A61B5/021 ,  B06B1/06 ,  B06B3/00 ,  G01H11/08 ,  G10K11/02 ,  G10K11/162 ,  G10K11/30

CPC分类号： A61B5/0095 ,  A61B5/02125 ,  A61B5/6824 ,  A61B5/6826 ,  B06B1/0611 ,  B06B3/00 ,  G01H11/08 ,  G10K11/02 ,  G10K11/162 ,  G10K11/30 ,  B06B2201/76

摘要： An apparatus may include a platen, a light source system and an ultrasonic receiver system. The light source system may be configured to provide light to a target object on an outer surface of the platen. The light source system may be configured to direct the light along a first axis oriented at a first angle relative to the outer surface of the platen. The ultrasonic receiver system may be configured to receive ultrasonic waves generated by the target object responsive to the light from the light source system. The ultrasonic receiver system may include one or more receiver elements residing in a receiver plane. A normal to the receiver plane being may be oriented along a second axis at a second angle relative to the outer surface of the platen. The first angle may be different from the second angle.