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公开(公告)号：US10366269B2
公开(公告)日：2019-07-30
申请号：US15149048
申请日：2016-05-06
Applicant: QUALCOMM Incorporated
Inventor： Yipeng Lu , David William Burns
Abstract: An apparatus 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 operatively configured to control the light source system to emit light that induces acoustic wave emissions inside a target object. The control system may be operatively configured to select a first acquisition time delay for the reception of acoustic wave emissions primarily from a first depth inside the target object. The control system may be operatively configured to acquire first ultrasonic image data from the acoustic wave emissions received by the ultrasonic sensor array during a first acquisition time window. The first acquisition time window may be initiated at an end time of the first acquisition time delay.
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公开(公告)号：US20180129849A1
公开(公告)日：2018-05-10
申请号：US15804902
申请日：2017-11-06
Applicant: QUALCOMM Incorporated
Inventor： Jessica Liu Strohmann , Yipeng Lu , Ashish Hinger , David William Burns
CPC classification number: G06K9/0002 , G06F21/32 , G06K9/00026 , G06K9/0012 , G06K9/2018
Abstract: A system may include a fingerprint sensor system and a control system. The system may be configured to transmit an ultrasonic wave including a first frequency. The control system may be configured to obtain dermis layer image data from a target object based on reflected portions of the ultrasonic waves received by the fingerprint sensor system. The dermis layer image data may correspond to ultrasonic waves received from the target object within a time interval corresponding with the dermis layer. The reflected portions of the ultrasonic wave corresponding to the dermis layer image data may include ultrasonic waves at a second frequency that is an integer multiple of the first frequency. The control system may be configured to determine whether a magnitude of the ultrasonic waves at the second frequency exceeds a harmonic threshold and, if the magnitude exceeds the harmonic threshold, the control system may perform an authentication process.
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公开(公告)号：US20170323131A1
公开(公告)日：2017-11-09
申请号：US15149046
申请日：2016-05-06
Applicant: QUALCOMM Incorporated
Inventor： Yipeng Lu , David William Burns
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.
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公开(公告)号：US12284481B2
公开(公告)日：2025-04-22
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
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：US12217530B2
公开(公告)日：2025-02-04
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
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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Patent Agency Ranking
公开(公告)号：US12183113B2
公开(公告)日：2024-12-31
申请号：US17247734
申请日：2020-12-21
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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37.发明授权公开(公告)号：US11823483B2
公开(公告)日：2023-11-21
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
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.
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公开(公告)号：US11438703B2
公开(公告)日：2022-09-06
申请号：US16455472
申请日：2019-06-27
Applicant: QUALCOMM Incorporated
Inventor： Yuri Kusano , Yipeng Lu , Jessica Liu Strohmann , Hrishikesh Vijaykumar Panchawagh
Abstract: An ultrasonic sensor array includes a plurality of ultrasonic transducers, each transducer including a piezoelectric member. Each of the transducers includes an electret member, a receive (Rx) layer configured to exhibit a first d33 resonating mode coefficient and a transmit (Tx) layer configured to exhibit a second d33 resonating mode coefficient, the first coefficient being different from the second coefficient. The transducers are disposed on a flexible substrate.
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公开(公告)号：US11182026B2
公开(公告)日：2021-11-23
申请号：US16854495
申请日：2020-04-21
Applicant: QUALCOMM Incorporated
Inventor： Yue Liang , Yipeng Lu , Hrishikesh Vijaykumar Panchawagh , Jessica Liu Strohmann , Changting Xu
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：US11126814B2
公开(公告)日：2021-09-21
申请号：US16525030
申请日：2019-07-29
Applicant: Qualcomm Incorporated
Inventor： Yipeng Lu , Hrishikesh Vijaykumar Panchawagh , Kostadin Dimitrov Djordjev , Jae Hyeong Seo , Nicholas Ian Buchan , Chin-Jen Tseng , Tsongming Kao
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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