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公开(公告)号：US11062010B2
公开(公告)日：2021-07-13
申请号：US16655039
申请日：2019-10-16
Applicant: QUALCOMM Incorporated
Inventor： Soon Joon Yoon , Changting Xu , Jessica Liu Strohmann , Hrishikesh Vijaykumar Panchawagh , Kostadin Dimitrov Djordjev
Abstract: A method may involve controlling an apparatus to transmit a first ultrasonic wave by sending first electrical signals to a plurality of separate electrode elements proximate an ultrasonic transceiver layer. The method may involve receiving first electrode layer signals, corresponding to reflections of the first ultrasonic wave, from the electrode layer. The method may involve determining, based on the first electrode layer signals, a location of a target object in contact with the apparatus. The location of the target object may correspond with a proximate electrode element. The method may involve controlling the ultrasonic transceiver layer to transmit a second ultrasonic wave by sending second electrical signals to the proximate electrode element and for receiving receiver pixel signals from at least a portion of the plurality of ultrasonic receiver pixels in an area corresponding with the proximate electrode element.
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公开(公告)号：US11335114B2
公开(公告)日：2022-05-17
申请号：US16947883
申请日：2020-08-21
Applicant: QUALCOMM Incorporated
Inventor： Changting Xu , Soon Joon Yoon , Camilo Perez Saaibi , Hrishikesh Vijaykumar Panchawagh , Kostadin Dimitrov Djordjev
IPC: G06V40/13 , H01L41/113 , G06F3/0487 , G02B1/14
Abstract: Some disclosed methods involve acquiring, via an ultrasonic sensor system, first (reference) ultrasonic signals at a first time and acquiring second ultrasonic signals via the ultrasonic sensor system at a second time. Such methods may involve determining, based at least in part on a comparison of the first ultrasonic signals and the second ultrasonic signals, whether one or more layers reside on the cover glass at the second time. If it is determined that the one or more layers reside on the cover glass at the second time, some methods may involve determining one or more signal characteristics corresponding to properties of the one or more layers and determining, based at least in part on the one or more properties, whether the one or more layers are compatible with the ultrasonic sensor system. If so, the method may involve calibrating the ultrasonic sensor system.
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公开(公告)号：US11087107B2
公开(公告)日：2021-08-10
申请号：US16545741
申请日：2019-08-20
Applicant: QUALCOMM Incorporated
Inventor： Jessica Liu Strohmann , Hrishikesh Vijaykumar Panchawagh , Yipeng Lu , Soon Joon Yoon , Kostadin Dimitrov Djordjev
IPC: G06K9/00 , G06F3/042 , H01L41/253 , H01L41/187 , H01L41/29
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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Patent Agency Ranking
公开(公告)号：US10956709B1
公开(公告)日：2021-03-23
申请号：US16682896
申请日：2019-11-13
Applicant: QUALCOMM Incorporated
Inventor： Javier Frydman , Lior Maor , Gal Rotem , Changting Xu , Jessica Liu Strohmann , Soon Joon Yoon , Hrishikesh Vijaykumar Panchawagh , Kostadin Dimitrov Djordjev
IPC: G06K9/00
Abstract: A method of controlling an apparatus that includes an ultrasonic sensor system may involve controlling the ultrasonic sensor system to transmit a first ultrasonic compressional wave and receiving first signals from the ultrasonic sensor system. The first signals may include signals corresponding to reflections of the first ultrasonic compressional wave from a target object proximate a surface of the apparatus. The method may involve performing an authentication process based, at least in part, on the first signals. The method may involve controlling the apparatus to transmit a shear wave and receiving second signals from the ultrasonic sensor system. The second signals may include signals corresponding to reflections of the shear wave from the target object. The method may involve performing a spoof detection process based, at least in part, on the second signals.
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公开(公告)号：US11430249B2
公开(公告)日：2022-08-30
申请号：US16427165
申请日：2019-05-30
Applicant: QUALCOMM Incorporated
Inventor： Soon Joon Yoon , Hrishikesh Vijaykumar Panchawagh , Jessica Liu Strohmann , Kostadin Dimitrov Djordjev
Abstract: 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.
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公开(公告)号：US20200380232A1
公开(公告)日：2020-12-03
申请号：US16427165
申请日：2019-05-30
Applicant: QUALCOMM Incorporated
Inventor： Soon Joon Yoon , Hrishikesh Vijaykumar Panchawagh , Jessica Liu Strohmann , Kostadin Dimitrov Djordjev
Abstract: 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.
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公开(公告)号：US20210150239A1
公开(公告)日：2021-05-20
申请号：US16686063
申请日：2019-11-15
Applicant: QUALCOMM Incorporated
Inventor： Soon Joon Yoon , Changting Xu , Hrishikesh Panchawagh , Kostadin Dimitrov Djordjev
Abstract: Methods, systems, and devices for anti-spoofing detection are described. The methods, systems, and devices include scanning, by a sensor associated with a device, an object placed within a scanning distance of the sensor, identifying a test signal based on scanning the object, comparing the test signal to a reference signal, identifying a first match between the object and a biometric model based on the comparing, identifying, based on the scanning, a second match between a first biometric pattern associated with the object and a stored second biometric pattern, and enabling access to a secure resource associated with the device based on the first match and the second match.
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公开(公告)号：US20210117519A1
公开(公告)日：2021-04-22
申请号：US16655039
申请日：2019-10-16
Applicant: QUALCOMM Incorporated
Inventor： Soon Joon Yoon , Changting Xu , Jessica Liu Strohmann , Hrishikesh Vijaykumar Panchawagh , Kostadin Dimitrov Djordjev
Abstract: A method may involve controlling an apparatus to transmit a first ultrasonic wave by sending first electrical signals to a plurality of separate electrode elements proximate an ultrasonic transceiver layer. The method may involve receiving first electrode layer signals, corresponding to reflections of the first ultrasonic wave, from the electrode layer. The method may involve determining, based on the first electrode layer signals, a location of a target object in contact with the apparatus. The location of the target object may correspond with a proximate electrode element. The method may involve controlling the ultrasonic transceiver layer to transmit a second ultrasonic wave by sending second electrical signals to the proximate electrode element and for receiving receiver pixel signals from at least a portion of the plurality of ultrasonic receiver pixels in an area corresponding with the proximate electrode element.
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