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公开(公告)号：US20250104462A1
公开(公告)日：2025-03-27
申请号：US18973926
申请日：2024-12-09
Applicant: QUALCOMM Incorporated
Inventor： Jessica Liu STROHMANN , Hrishikesh Vijaykumar PANCHAWAGH , Yipeng LU , Chin-Jen TSENG , Kostadin Dimitrov DJORDJEV
Abstract: Various aspects of the present disclosure relate generally to ultrasonic fingerprint sensor. In some aspects, a device may include a flexible display. The device may include an ultrasonic fingerprint sensor that is configured to transmit and receive an ultrasonic signal in an acoustic path through the flexible display. The device may include an acoustics configuration layer that is situated between the display and the ultrasonic fingerprint sensor. The acoustics configuration layer may be configured to optimize a signal strength of the ultrasonic signal based at least in part on a configuration of one or more layers of the flexible display. Numerous other aspects are provided.
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公开(公告)号：US20240249549A1
公开(公告)日：2024-07-25
申请号：US18625257
申请日：2024-04-03
Applicant: QUALCOMM Incorporated
Inventor： Jessica Liu STROHMANN , Hrishikesh Vijaykumar PANCHAWAGH , Yipeng LU , Chin-Jen TSENG , Kostadin Dimitrov DJORDJEV
CPC classification number: G06V40/1306 , G06F1/1652
Abstract: Various aspects of the present disclosure relate generally to ultrasonic fingerprint sensor. In some aspects, a device may include a flexible display. The device may include an ultrasonic fingerprint sensor that is configured to transmit and receive an ultrasonic signal in an acoustic path through the flexible display. The device may include an acoustics configuration layer that is situated between the display and the ultrasonic fingerprint sensor. The acoustics configuration layer may be configured to optimize a signal strength of the ultrasonic signal based at least in part on a configuration of one or more layers of the flexible display. Numerous other aspects are provided
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3.发明申请公开(公告)号：US20230097300A1
公开(公告)日：2023-03-30
申请号：US18061938
申请日：2022-12-05
Applicant: QUALCOMM Incorporated
Inventor： Rakesh PALLERLA , Hrishikesh Vijaykumar PANCHAWAGH , Prakash TIWARI , Naga Chandan Babu GUDIVADA
Abstract: Apparatuses, systems, and methods are provided for ultrasonic fingerprint sensors that are able to be used to detect fingerprints from opposing sides of an apparatus, e.g., a smartphone with screens on both sides of the housing. Some implementations of such sensors may include, for example, two piezoelectric and sensor pixel layer assemblies coupled to a common controller. Other implementations of such sensors may include, for example, a single piezoelectric and sensor pixel assembly coupled with a controller configured to apply a range-gate delay to obtain fingerprint scans from either opposing side of an apparatus. Yet further implementations of such sensors may include acoustic masking layers to spatially filter ultrasonic waves propagating to either side of an apparatus.
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公开(公告)号：US20230063693A1
公开(公告)日：2023-03-02
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
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.
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5.发明申请公开(公告)号：US20230033861A1
公开(公告)日：2023-02-02
申请号：US17443936
申请日：2021-07-28
Applicant: QUALCOMM Incorporated
Inventor： Rakesh PALLERLA , Hrishikesh Vijaykumar PANCHAWAGH , Prakash TIWARI , Naga Chandan Babu GUDIVADA
Abstract: Apparatuses, systems, and methods are provided for ultrasonic fingerprint sensors that are able to be used to detect fingerprints from opposing sides of an apparatus, e.g., a smartphone with screens on both sides of the housing. Some implementations of such sensors may include, for example, two piezoelectric and sensor pixel layer assemblies coupled to a common controller. Other implementations of such sensors may include, for example, a single piezoelectric and sensor pixel assembly coupled with a controller configured to apply a range-gate delay to obtain fingerprint scans from either opposing side of an apparatus. Yet further implementations of such sensors may include acoustic masking layers to spatially filter ultrasonic waves propagating to either side of an apparatus.
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Patent Agency Ranking
公开(公告)号：US20210377670A1
公开(公告)日：2021-12-02
申请号：US17302714
申请日：2021-05-11
Applicant: QUALCOMM Incorporated
Inventor： Jessica Liu STROHMANN , Hrishikesh Vijaykumar PANCHAWAGH , Nicholas Ian BUCHAN , Yipeng LU , Kostadin Dimitrov DJORDJEV
IPC: H04R17/00 , B06B1/06 , H01L41/193 , H04R17/02 , H04R1/02
Abstract: A mobile device includes one or more piezoelectric polymer layers underlying a display. The one or more piezoelectric polymer layers may be electrically driven to operate in either a d33 stretching mode or a d31 bending mode. The mobile device functions as an ultrasonic sensor in the d33 stretching mode and as an audio speaker/microphone or a proximity sensor in the d31 bending mode. The piezoelectric polymer layer operating in the d31 bending mode may be directly mechanically coupled to a display, indirectly mechanically coupled to the display and underlying an ultrasonic sensor stack, or integrated in the ultrasonic sensor stack. Signal performance of the piezoelectric polymer layer operating in the d31 bending mode may be enhanced or modulated by having a larger area, multiple layers, bi-pole or uni-pole driving with multiple layers, one or more stiff adhesives, a spacer layer, one or more mass features, a thin TFT layer, a thick piezoelectric polymer layer, or combinations thereof.
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公开(公告)号：US20210056276A1
公开(公告)日：2021-02-25
申请号：US16544681
申请日：2019-08-19
Applicant: QUALCOMM Incorporated
Inventor： Yipeng LU , Jessica Liu STROHMANN , Ila BADGE , Hrishikesh Vijaykumar PANCHAWAGH , Tsongming KAO
IPC: G06K9/00
Abstract: 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.
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公开(公告)号：US20250072764A1
公开(公告)日：2025-03-06
申请号：US18461423
申请日：2023-09-05
Applicant: QUALCOMM Incorporated
Inventor： Hrishikesh Vijaykumar PANCHAWAGH , Ali LOPEZ , Sumit AGRAWAL , Bernard HERRERA SOUKUP , Nicholas BUCHAN , Camilo PEREZ SAAIBI , Legardo REYES , Kostadin Dimitrov DJORDJEV
Abstract: Some disclosed examples involve controlling a light-steering system to direct light emitted by at least a first light source of a light source system to a first plurality of areas of a target object, wherein controlling the light-steering system involves controlling one or more adjustable micromirrors, one or more adjustable lenses, one or more adjustable diffraction gratings, or combinations thereof. Some examples involve receiving ultrasonic receiver signals from an ultrasonic receiver system corresponding to photoacoustic responses of the target object to light provided the light source system to each area of the first plurality of areas and determining a selected area of the target object from which additional ultrasonic receiver signals will be obtained, wherein determining the selected area involves detecting a blood vessel within the target object. Some examples involve controlling the light source system to obtain additional ultrasonic receiver signals from the selected area.
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公开(公告)号：US20240389860A1
公开(公告)日：2024-11-28
申请号：US18323021
申请日：2023-05-24
Applicant: QUALCOMM Incorporated
Inventor： Camilo PEREZ SAAIBI , Hrishikesh Vijaykumar PANCHAWAGH , Sumit AGRAWAL , Kostadin Dimitrov DJORDJEV
Abstract: Some disclosed examples involve controlling, by a control system, a light source system to provide light to a target object on an outer surface of a platen and receiving, by the control system, ultrasonic receiver signals from each of a plurality of ultrasonic receiver elements in an array of ultrasonic receiver elements. The ultrasonic receiver signals may correspond to ultrasonic waves generated by the target object responsive to the light from the light source system. Some disclosed examples involve applying, by the control system, a receiver-side beamforming process to the ultrasonic receiver signals, to produce a beamformed ultrasonic receiver image and detecting, by the control system, a blood vessel within the targe object based, at least in part, on the beamformed ultrasonic receiver image.
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公开(公告)号：US20240210309A1
公开(公告)日：2024-06-27
申请号：US18069893
申请日：2022-12-21
Applicant: QUALCOMM Incorporated
Inventor： Nicholas BUCHAN , Stephen Michael GOJEVIC , Hrishikesh Vijaykumar PANCHAWAGH , Yipeng LU , Htet NAING , John Keith SCHNEIDER , Kostadin Dimitrov DJORDJEV , Camilo PEREZ SAAIBI , Sherman Sebastian ANTAO , Ye ZHAN
CPC classification number: G01N21/1702 , A61B5/0095 , A61B8/4281 , G01N29/2418
Abstract: An apparatus may include a platen, a light source system and an ultrasonic receiver system. The platen may be configured to separate one or more received arterial ultrasonic waves generated by blood in an artery, by an arterial wall, or by a combination thereof, from one or more other types of received ultrasonic waves. The platen may have an outer surface with an acoustic impedance that is configured to approximate the acoustic impedance of human skin. The outer surface of the platen may be configured to conform to a surface of the human skin. The apparatus may include a noise reduction system. The light source system may include at least one multi-junction laser diode. The apparatus may include a mirror layer residing between the ultrasonic receiver system and the platen.
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