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1. 发明申请

WO2023044511A1 APPARATUS WITH ULTRASONIC FINGERPRINT SENSOR AND ONE OR MORE RESONATORS, AND RELATED SYSTEMS AND METHODS 审中-公开
公开(公告)号：WO2023044511A1
公开(公告)日：2023-03-23
申请号：PCT/US2022/077113
申请日：2022-09-27
申请人： QUALCOMM INCORPORATED
发明人： STROHMANN, Jessica Liu , PANCHAWAGH, Hrishikesh Vijaykumar , KUO, Nai-Kuei , LU, Yipeng , LOPEZ, Ali , DJORDJEV, Kostadin Dimitrov
IPC分类号： G06V40/13 , G06V40/12 , G06F21/32 , B06B1/06
摘要： 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.

2. 发明申请

WO2020243743A1 PASSIVE ACOUSTIC FINGERPRINT SENSOR 审中-公开
公开(公告)号：WO2020243743A1
公开(公告)日：2020-12-03
申请号：PCT/US2020/070078
申请日：2020-05-27
申请人： QUALCOMM INCORPORATED
发明人： YOON, Soon Joon , PANCHAWAGH, Hrishikesh Vijaykumar , STROHMANN, Jessica Liu , DJORDJEV, Kostadin Dimitrov
IPC分类号： G06K9/00 , G06K9/62
摘要： An acoustic receiver system may be configured for receiving dynamic friction acoustic waves produced via relative motion between an outer surface of an apparatus and a target object in contact with the outer surface. A control system may be configured for receiving acoustic signals from the acoustic receiver system. The acoustic signals may correspond to a first instance of the dynamic friction acoustic waves. The control system may be configured for extracting target object features from the first acoustic signals and for performing an authentication process based, at least in part, on the target object features.

3. 发明申请

WO2018085853A1 ULTRASONIC BIOMETRIC SYSTEM WITH HARMONIC DETECTION 审中-公开
标题翻译：谐波检测的超声波生物测量系统
公开(公告)号：WO2018085853A1
公开(公告)日：2018-05-11
申请号：PCT/US2017/060441
申请日：2017-11-07
申请人： QUALCOMM INCORPORATED
发明人： STROHMANN, Jessica Liu , LU, Yipeng , HINGER, Ashish , BURNS, David William
IPC分类号： G06K9/00
摘要： 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.
摘要翻译：系统可以包括指纹传感器系统和控制系统。该系统可以被配置为发送包括第一频率的超声波。控制系统可以被配置为基于由指纹传感器系统接收的超声波的反射部分来从目标物体获得真皮层图像数据。真皮层图像数据可对应于在与真皮层相对应的时间间隔内从目标物体接收的超声波。对应于真皮层图像数据的超声波的反射部分可以包括具有为第一频率的整数倍的第二频率的超声波。控制系统可以被配置为确定第二频率处的超声波的幅度是否超过谐波阈值，并且如果幅度超过谐波阈值，则控制系统可以执行认证过程。

4. 发明申请

WO2023044201A1 FINGERPRINT SENSOR WITH FORCE OR PRESSURE FEEDBACK 审中-公开
公开(公告)号：WO2023044201A1
公开(公告)日：2023-03-23
申请号：PCT/US2022/074564
申请日：2022-08-05
申请人： QUALCOMM INCORPORATED
发明人： KUMAR, Raj , CHU, Chun Yiu , STROHMANN, Jessica Liu
IPC分类号： G06V40/13 , G06V40/40 , G06V40/60
摘要： A method may involve controlling, via a control system, the apparatus to provide a first prompt to place a digit on an outer surface of the apparatus in a fingerprint sensor system area. The method may involve determining, via the control system, a digit force or a digit pressure of the digit on the outer surface of the apparatus. The method may involve controlling, via the control system, the apparatus to provide a second prompt corresponding to the digit force or the digit pressure.

5. 发明申请

WO2023044200A1 APPARATUS WITH ULTRASONIC FINGERPRINT SENSOR AND ONE OR MORE RESONATORS, AND RELATED SYSTEMS AND METHODS 审中-公开
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
申请人： QUALCOMM INCORPORATED
发明人： STROHMANN, Jessica Liu , PANCHAWAGH, Hrishikesh Vijaykumar , KUO, Nai-Kuei , LU, Yipeng , LOPEZ, Ali , DJORDJEV, Kostadin Dimitrov
IPC分类号： G06V40/13 , G01S15/02 , G01S15/89 , B06B1/06
摘要： 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.

6. 发明申请

WO2019005498A1 ULTRASONIC FINGERPRINT SENSOR FOR UNDER-DISPLAY APPLICATIONS 审中-公开
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
申请人： QUALCOMM INCORPORATED
发明人： 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
IPC分类号： G06K9/00 , G06F3/043
摘要： 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.

7. 发明申请

WO2023034658A1 UNDER-DISPLAY ULTRASONIC FINGERPRINT SENSORS FOR FOLDABLE DISPLAYS 审中-公开
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
申请人： QUALCOMM INCORPORATED
发明人： LIN, Shiang-Chi , PANCHAWAGH, Hrishikesh Vijaykumar , STROHMANN, Jessica Liu , LU, Yipeng , TSENG, Chin-Jen , DJORDJEV, Kostadin Dimitrov , YANG, Min-Lun , YANG, Chia-Wei
IPC分类号： G06F21/32 , G06F3/043 , G06F1/16 , G06V40/12 , G06V40/13
摘要： 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.

8. 发明申请

WO2023034657A1 ULTRASONIC SENSOR SYSTEM WITH HIGHER- FREQUENCY AND LOWER-FREQUENCY AREAS 审中-公开
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
申请人： QUALCOMM INCORPORATED
发明人： STROHMANN, Jessica Liu , LU, Yipeng , PANCHAWAGH, Hrishikesh Vijaykumar , DJORDJEV, Kostadin Dimitrov
IPC分类号： G01S15/89 , G06F21/32 , G06V40/13 , G06V40/12 , G01S7/52
摘要： 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.

9. 发明申请

WO2022204629A1 SEGMENTED TRANSDUCERS FOR ACOUSTIC APPLICATIONS 审中-公开
公开(公告)号：WO2022204629A1
公开(公告)日：2022-09-29
申请号：PCT/US2022/070517
申请日：2022-02-03
申请人： QUALCOMM INCORPORATED
发明人： HERRERA, Bernard , STROHMANN, Jessica Liu , XU, Changting , PANCHAWAGH, Hrishikesh Vijaykumar , DJORDJEV, Kostadin Dimitrov
IPC分类号： H04R7/04 , H04R7/10 , H04R17/00 , G06F3/043 , H01L41/09
摘要： Some disclosed devices may include a display stack, a cover layer proximate a first side of the display stack and a segmented transducer array proximate a second side of the display stack. The segmented transducer array may include a plurality of separate transducer segments. Each of the separate transducer segments may include a piezoelectric layer and a thin-film transistor (TFT) layer. The separate transducer segments may include transmitter transducer segments and receiver transducer segments. In some examples, a spacing between at least a first plurality of the transmitter transducer segments may correspond to a display stack and cover layer oscillation mode frequency in a range from 20 Hz to 20 kHz, from 15 kHz to 200 kHz or from 20 kHz to 400 kHz.

10. 发明申请

WO2021045838A1 ULTRASONIC FINGERPRINT SENSOR WITH LOW-FREQUENCY VIBRATION SOURCE 审中-公开
公开(公告)号：WO2021045838A1
公开(公告)日：2021-03-11
申请号：PCT/US2020/040159
申请日：2020-06-29
申请人： QUALCOMM INCORPORATED
发明人： BUCHAN, Nicholas Ian , PANCHAWAGH, Hrishikesh Vijaykumar , STROHMANN, Jessica Liu , D'SOUZA, Sandeep Louis
IPC分类号： G06K9/00
摘要： An apparatus may include an ultrasonic sensor system, a low-frequency vibration source and a control system. The ultrasonic sensor system may include an ultrasonic receiver and an ultrasonic transmitter configured for transmitting ultrasonic waves in a first frequency range (e.g., 1 MHz to 30 MHz). The low-frequency vibration source may be configured for generating low-frequency vibrations in a second frequency range (e.g., the range of 5 Hz to 2000 Hz). The control system may be configured for synchronizing the generation of the first low-frequency vibrations and the transmission of the first ultrasonic waves.

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