公开(公告)号：US20240161533A1

公开(公告)日：2024-05-16

申请号：US18513144

申请日：2023-11-17

Applicant: QUALCOMM Incorporated

Inventor： Jessica Liu STROHMANN ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Nai-Kuei KUO ,  Yipeng LU ,  Ali LOPEZ ,  Kostadin Dimitrov DJORDJEV

IPC: G06V40/13 ,  G06F21/32 ,  H03H9/17

CPC classification number: G06V40/1306 ,  G06F21/32 ,  H03H9/17

Abstract: Some disclosed implementations include an ultrasonic sensor stack and an acoustic resonator. The acoustic resonator may be configured to enhance ultrasonic waves transmitted by the ultrasonic sensor stack in an ultrasonic frequency range that is suitable for ultrasonic fingerprint sensors. In some examples, the acoustic resonator may include one or more low-impedance layers residing between a first higher-impedance layer and a second higher-impedance layer. Each of the one or more low-impedance layers may have a lower acoustic impedance than an acoustic impedance of the first higher-impedance layer or an acoustic impedance of the second higher-impedance layer. At least one low-impedance layer may have a thickness corresponding to a multiple of a half wavelength at a peak frequency of the acoustic resonator. The peak frequency may be within a frequency range from 1 MHz. to 20 MHz.

公开(公告)号：US20240037979A1

公开(公告)日：2024-02-01

申请号：US18486914

申请日：2023-10-13

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：US20230252816A1

公开(公告)日：2023-08-10

申请号：US18302241

申请日：2023-04-18

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：US20230088820A1

公开(公告)日：2023-03-23

申请号：US17448031

申请日：2021-09-17

Applicant: QUALCOMM Incorporated

Inventor： Jessica Liu STROHMANN ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Nai-Kuei KUO ,  Yipeng LU ,  Ali LOPEZ ,  Kostadin Dimitrov DJORDJEV

IPC: H03H9/17 ,  G06K9/00 ,  G06F21/32

Abstract: Some disclosed implementations include an ultrasonic sensor stack and an acoustic resonator. The acoustic resonator may be configured to enhance ultrasonic waves transmitted by the ultrasonic sensor stack in an ultrasonic frequency range that is suitable for ultrasonic fingerprint sensors. In some examples, the acoustic resonator may include one or more low-impedance layers residing between a first higher-impedance layer and a second higher-impedance layer. Each of the one or more low-impedance layers may have a lower acoustic impedance than an acoustic impedance of the first higher-impedance layer or an acoustic impedance of the second higher-impedance layer. At least one low-impedance layer may have a thickness corresponding to a multiple of a half wavelength at a peak frequency of the acoustic resonator. The peak frequency may be within a frequency range from 1 MHz. to 20 MHz.

公开(公告)号：US20250120598A1

公开(公告)日：2025-04-17

申请号：US18486866

申请日：2023-10-13

Applicant: QUALCOMM Incorporated

Inventor： Emily Kathryn BROOKS ,  John Keith SCHNEIDER ,  Vivekananda Parampalli ADIGA ,  Shounak Uday GORE ,  Nicholas BUCHAN ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Evan Michael BRELOFF ,  Ye ZHAN

IPC: A61B5/021 ,  A61B5/00

Abstract: In some implementations, an apparatus may obtain activity information indicative of an activity performed by a person. The apparatus may update a model for determining blood pressure of the person based at least in part on the obtained activity information. The apparatus may detect an acoustic wave corresponding to a photoacoustic response of a blood vessel of the person to light emitted by a light source system. The apparatus may estimate a blood pressure based at least in part on the updated model and the acoustic wave. In some embodiments, the apparatus may comprise a wearable device worn by the person.

公开(公告)号：US20250090028A1

公开(公告)日：2025-03-20

申请号：US18468618

申请日：2023-09-15

Applicant: QUALCOMM Incorporated

Inventor： Hrishikesh Vijaykumar PANCHAWAGH ,  Bernard HERRERA SOUKUP ,  Emily Kathryn BROOKS ,  Nicholas BUCHAN ,  John Keith SCHNEIDER ,  Kostadin Dimitrov DJORDJEV

IPC: A61B5/00 ,  A61B5/02 ,  A61B5/021 ,  A61B5/024 ,  A61B5/0295

Abstract: Multi-sensor devices and systems are disclosed. A multi-sensor user device may include a first acoustic sensor and a second acoustic sensor disposed at a first distance from each other, the first and second acoustic sensors each configured to obtain respective first and second acoustic signals associated with a blood vessel of a user; a first motion sensor and a second motion sensor disposed at a second distance from each other, the first and second motion sensors each configured to obtain respective first and second motion signals associated with the blood vessel; at least one optical sensor configured to obtain reflected optical signals from the blood vessel; and a wearable structure securable to the user and comprising the first acoustic sensor, the second acoustic sensor, the first motion sensor, the second motion sensor, and the at least one optical sensor.

公开(公告)号：US20250072762A1

公开(公告)日：2025-03-06

申请号：US18461397

申请日：2023-09-05

Applicant: QUALCOMM Incorporated

Inventor： Sumit AGRAWAL ,  Ye ZHAN ,  Emily Kathryn BROOKS ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Ali LOPEZ ,  Nicholas BUCHAN ,  Kostadin Dimitrov DJORDJEV ,  John Keith SCHNEIDER

IPC: A61B5/00 ,  A61B5/02

Abstract: An apparatus may include a platen, a light source system, an ultrasonic receiver system and a control system, the light source system configured for providing first light of a first wavelength and second light of a second wavelength to a target object along a first axis. The control system may be configured to: cause the light source system to provide the first light to the target object at a first time and to provide the second light to the target object at a second time; receive first ultrasonic receiver signals and second ultrasonic receiver signals from the ultrasonic receiver system corresponding to photoacoustic responses of the target object to the first light and the second light, respectively; and estimate one or more blood vessel features based on at least one of the first ultrasonic receiver signals or the second ultrasonic receiver signals.

公开(公告)号：US20250072760A1

公开(公告)日：2025-03-06

申请号：US18461387

申请日：2023-09-05

Applicant: QUALCOMM Incorporated

Inventor： Sumit AGRAWAL ,  Ye ZHAN ,  Emily Kathryn BROOKS ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Ali LOPEZ ,  Nicholas BUCHAN ,  Kostadin Dimitrov DJORDJEV ,  John Keith SCHNEIDER

IPC: A61B5/00 ,  A61B5/02 ,  A61B5/021

Abstract: An apparatus may include a platen, a light source system, an ultrasonic receiver system and a control system, the light source system being configured for providing first light and second light having first and second wavelengths to a target object on an outer surface of the platen and including one or more light guides configured to convey light parallel to a surface of the platen. The control system may be configured to: cause the light source system to provide the first light and the second light to the target object at a first time and a second time, respectively; receive first and second ultrasonic receiver signals from the ultrasonic receiver system corresponding to photoacoustic responses of the target object to the first light and the second light, respectively; and estimate one or more blood vessel features based on at least one of the first or the second ultrasonic receiver signals.

公开(公告)号：US20250037498A1

公开(公告)日：2025-01-30

申请号：US18919355

申请日：2024-10-17

Applicant: QUALCOMM Incorporated

Inventor： Hrishikesh Vijaykumar PANCHAWAGH ,  Ila Ravindra BADGE ,  Yipeng LU ,  Kostadin Dimitrov DJORDJEV ,  Suryaprakash GANTI ,  Chin-Jen TSENG ,  Nicholas BUCHAN ,  Tsongming KAO ,  Leonard Eugene FENNELL ,  Firas SAMMOURA ,  Jessica Liu STROHMANN ,  David William BURNS

IPC: G06V40/13 ,  B06B1/06 ,  G01S7/52 ,  G01S15/89 ,  H10K59/00 ,  H10K59/65 ,  H10K77/10 ,  H10K102/00

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：US20240423487A1

公开(公告)日：2024-12-26

申请号：US18339162

申请日：2023-06-21

Applicant: QUALCOMM Incorporated

Inventor： Emily Kathryn BROOKS ,  John Keith SCHNEIDER ,  Hrishikesh Vijaykumar PANCHAWAGH ,  Nicholas BUCHAN ,  Evan Michael BRELOFF ,  Ye ZHAN ,  Vivekananda Parampalli ADIGA ,  Shounak Uday GORE ,  Bernard HERRERA SOUKUP

IPC: A61B5/021 ,  A61B5/00 ,  A61B5/02

Abstract: Some disclosed devices include a light source system, an ultrasonic receiver system and a control system. The control system may be configured to receive first sensor signals, including ultrasonic receiver signals, from the ultrasonic receiver system and to estimate one or more blood vessel features based on the first sensor signals. The control system may be configured to receive second sensor signals from a second sensor and to estimate a PWV based on the first sensor signals and the second sensor signals. The control system may be configured to estimate blood pressure based, at least in part, on the one or more blood vessel features and the PWV.