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公开(公告)号：WO2023034658A1
公开(公告)日：2023-03-09
申请号：PCT/US2022/073482
申请日：2022-07-06
Applicant: QUALCOMM INCORPORATED
Inventor： LIN, Shiang-Chi , PANCHAWAGH, Hrishikesh Vijaykumar , STROHMANN, Jessica Liu , LU, Yipeng , TSENG, Chin-Jen , DJORDJEV, Kostadin Dimitrov , YANG, Min-Lun , YANG, Chia-Wei
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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公开(公告)号：WO2023034657A1
公开(公告)日：2023-03-09
申请号：PCT/US2022/073478
申请日：2022-07-06
Applicant: QUALCOMM INCORPORATED
Inventor： STROHMANN, Jessica Liu , LU, Yipeng , PANCHAWAGH, Hrishikesh Vijaykumar , DJORDJEV, Kostadin Dimitrov
Abstract: An apparatus may include an ultrasonic sensor system having an ultrasonic transceiver layer, a thin-film transistor (TFT) layer and a frequency-differentiating layer. In some examples, the frequency-differentiating layer may include a first frequency-differentiating layer area corresponding to a lower-frequency area of the ultrasonic sensor system. The first frequency-differentiating layer area may include a first material having a first acoustic impedance. In some such examples, the frequency-differentiating layer may include a second frequency-differentiating layer area corresponding to a higher-frequency area of the ultrasonic sensor system. The second frequency-differentiating layer area may include a second material having a second acoustic impedance. The first acoustic impedance may, for example, be higher than the second acoustic impedance.
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公开(公告)号：WO2020081182A1
公开(公告)日：2020-04-23
申请号：PCT/US2019/051672
申请日：2019-09-18
Applicant: QUALCOMM INCORPORATED
Inventor： LU, Yipeng , PANCHAWAGH, Hrishikesh Vijaykumar , DJORDJEV, Kostadin Dimitrov , SEO, Jae Hyeong , BUCHAN, Nicholas Ian , TSENG, Chin-Jen , KAO, Tsongming
Abstract: An ultrasonic fingerprint sensor system of the present disclosure may be provided with a flexible substrate. The ultrasonic fingerprint sensor system may include a film stack disposed on the flexible substrate that provides acceptable acoustic coupling for fingerprint sensing. The ultrasonic fingerprint sensor system includes a high acoustic impedance layer in an acoustic path of ultrasonic waves through a display. The high acoustic impedance layer can be electrically conductive or electrically nonconductive. In some implementations, the ultrasonic fingerprint sensor system includes an ultrasonic transceiver or an ultrasonic transmitter separate from an ultrasonic receiver.
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4.发明申请
公开(公告)号：WO2023044200A1
公开(公告)日：2023-03-23
申请号：PCT/US2022/074552
申请日：2022-08-04
Applicant: QUALCOMM INCORPORATED
Inventor： STROHMANN, Jessica Liu , PANCHAWAGH, Hrishikesh Vijaykumar , KUO, Nai-Kuei , LU, Yipeng , LOPEZ, Ali , DJORDJEV, Kostadin Dimitrov
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.
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公开(公告)号：WO2022140711A1
公开(公告)日：2022-06-30
申请号：PCT/US2021/072051
申请日：2021-10-27
Applicant: QUALCOMM INCORPORATED
Inventor： STROHMANN, Jessica, Liu , PANCHAWAGH, Hrishikesh, Vijaykumar , LU, Yipeng , TSENG, Chin-Jen , DJORDJEV, Kostadin, Dimitrov
IPC: G06V40/13
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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Patent Agency Ranking
公开(公告)号：WO2019005498A1
公开(公告)日：2019-01-03
申请号：PCT/US2018/037581
申请日：2018-06-14
Applicant: QUALCOMM INCORPORATED
Inventor： PANCHAWAGH, Hrishikesh Vijaykumar , BADGE, Ila Ravindra , LU, Yipeng , DJORDJEV, Kostadin Dimitrov , GANTI, Suryaprakash , TSENG, Chin-Jen , BUCHAN, Nicholas Ian , KAO, Tsongming , FENNELL, Leonard Eugene , SAMMOURA, Firas , STROHMANN, Jessica Liu , BURNS, David William
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.
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公开(公告)号：WO2017192233A1
公开(公告)日：2017-11-09
申请号：PCT/US2017/026196
申请日：2017-04-05
Applicant: QUALCOMM INCORPORATED
Inventor： LU, Yipeng , BURNS, David William
IPC: G06K9/00
CPC classification number: G06K9/0002 , G01N29/14 , G06F21/32 , G06K9/00013 , G06K9/00033 , G06K9/00073 , G06K9/00107 , G06K9/0012 , G06K9/00885 , G06K2009/00932
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.
Abstract translation: 生物统计系统可以包括超声波传感器阵列，光源系统和控制系统。 一些实施可能包括超声波发射器。 响应于被光源系统发射的光照射，控制系统可以能够控制光源系统发光以及接收来自超声波传感器阵列的信号，该信号对应于从目标物体的部分发射的声波。 控制系统可以能够执行至少部分地基于来自超声波传感器阵列的信号的用户认证过程。
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公开(公告)号：WO2022006567A1
公开(公告)日：2022-01-06
申请号：PCT/US2021/070498
申请日：2021-04-30
Applicant: QUALCOMM INCORPORATED
Inventor： STROHMANN, Jessica Liu , PANCHAWAGH, Hrishikesh Vijaykumar , BUCHAN, Nicholas Ian , LU, Yipeng , DJORDJEV, Kostadin Dimitrov
IPC: G06K9/00 , G01N29/348 , G06V40/1306 , G06V40/14
Abstract: An ultrasonic sensor system may include an ultrasonic transceiver layer, a thin-film transistor (TFT) layer proximate a first side of the ultrasonic transceiver layer, a frequency-splitting layer proximate a second side of the ultrasonic transceiver layer and a high-impedance layer proximate the frequency-splitting layer. The frequency-splitting layer may reside between the ultrasonic transceiver layer and the high-impedance layer. The high-impedance layer may have a higher acoustic impedance than the frequency-splitting layer.
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公开(公告)号：WO2021216383A1
公开(公告)日：2021-10-28
申请号：PCT/US2021/027840
申请日：2021-04-16
Applicant: QUALCOMM INCORPORATED
Inventor： LIANG, Yue , LU, Yipeng , PANCHAWAGH, Hrishikesh Vijaykumar , STROHMANN, Jessica Liu , XU, Changting
Abstract: An example method of operation may include detecting a user touch in a first area based upon sensor data from one or more sensors of a first type, waking up one or more sensors of a second type configured to measure across some or all of the first area in response to the detecting, obtaining additional sensor data from the one or more sensors of the second type, and determining a location associated with the user touch based in part upon the sensor data from the one or more sensors of the second type.
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公开(公告)号：WO2021034988A1
公开(公告)日：2021-02-25
申请号：PCT/US2020/047084
申请日：2020-08-20
Applicant: QUALCOMM INCORPORATED
Inventor： STROHMANN, Jessica Liu , PANCHAWAGH, Hrishikesh Vijaykumar , LU, Yipeng , YOON, Soon Joon , DJORDJEV, Kostadin Dimitrov
IPC: G06K9/00
Abstract: A device and method for producing said device comprising an improved ultrasonic biometric sensor is disclosed. The ultrasonic biometric sensor is composed of a pixel array and multiple copolymer layers which are polarized in such a fashion as to increase the transmitting pressure and receiving sensitivity of the sensor. The copolymer layers may be polarized in the same direction, or in opposite directions, depending on the desired functionality.
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