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公开(公告)号：US11182587B2
公开(公告)日：2021-11-23
申请号：US16751820
申请日：2020-01-24
Applicant: QUALCOMM Incorporated
Inventor： Nicholas Ian Buchan , Hrishikesh Vijaykumar Panchawagh , Jessica Liu Strohmann , Sandeep Louis D'Souza
Abstract: 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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公开(公告)号：US20210350099A1
公开(公告)日：2021-11-11
申请号：US16867482
申请日：2020-05-05
Applicant: QUALCOMM Incorporated
IPC: G06K9/00
Abstract: An apparatus may include an ultrasonic sensor system, a Coulomb force apparatus and a control system. The control system may be configured for controlling the Coulomb force apparatus for application of a Coulomb force to a digit in contact with an outer surface of the apparatus in a fingerprint sensor area and for controlling the ultrasonic fingerprint sensor for transmission of first ultrasonic waves towards the digit. The control system may be configured for synchronizing the application of the Coulomb force and the transmission of the first ultrasonic waves. The control system may be configured for receiving ultrasonic receiver signals from the ultrasonic fingerprint sensor and for performing an authentication process based, at least in part, on the ultrasonic receiver signals. The ultrasonic receiver signals may, in some instances, include signals corresponding to reflections of the first ultrasonic waves from the digit.
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公开(公告)号：US20210158002A1
公开(公告)日：2021-05-27
申请号：US16691416
申请日：2019-11-21
Applicant: QUALCOMM Incorporated
Inventor： Jack Conway Kitchens , John Keith Schneider , Stephen Michael Gojevic , Evan Michael Breloff , James Anthony Miranto , Emily Kathryn Brooks , Fitzgerald John Archibald , Alexei Stoianov , Raj Kumar , Sai Praneeth Sreeram , Nirma Lnu , Sandeep Louis D'Souza , Nicholas Ian Buchan , Yipeng Lu , Chin-Jen Tseng , Hrishikesh Vijaykumar Panchawagh
Abstract: An apparatus may include a cover layer, a layer of first metamaterial proximate (or in) the cover layer, a light source system configured for providing light to the layer of first metamaterial and a receiver system. The first metamaterial may include nanoparticles configured to create ultrasonic waves when illuminated by light. The receiver system may include an ultrasonic receiver system configured to receive ultrasonic waves reflected from a target object in contact with, or proximate, a surface of the cover layer. The control system may be configured to receive ultrasonic receiver signals from the ultrasonic receiver system corresponding to the ultrasonic waves reflected from the target object and to perform an authentication process and/or an imaging process that is based, at least in part, on the ultrasonic receiver signals.
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公开(公告)号：US20180373913A1
公开(公告)日：2018-12-27
申请号：US16006640
申请日：2018-06-12
Applicant: QUALCOMM Incorporated
Inventor： Hrishikesh Vijaykumar Panchawagh , Ila Ravindra Badge , Yipeng Lu , Kostadin Dimitrov Djordjev , Suryaprakash Ganti , Chin-Jen Tseng , Nicholas Ian Buchan , Tsongming Kao , Leonard Eugene Fennell , Firas Sammoura , Jessica Liu Strohmann , David William Burns
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：US11063203B2
公开(公告)日：2021-07-13
申请号：US15837922
申请日：2017-12-11
Applicant: QUALCOMM Incorporated
Inventor： Fan Zhong , Jack Conway Kitchens, II , Leonard Eugene Fennell , Nicholas Ian Buchan
IPC: H01L41/257 , H01L41/053 , H01L41/18 , H01L41/187 , H01L41/193
Abstract: Disclosed are methods, devices, apparatuses, and systems for poling a piezoelectric film. A poling system can be a corona poling system including a corona source with one or more corona wires configured to transfer a corona discharge onto a major surface of the piezoelectric film. The poling system can further include a grid electrode interposed between the corona source and the piezoelectric film. A substrate including the piezoelectric film may be supported on a substrate support, where the substrate and the corona source are configured to move relative to each other during poling.
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公开(公告)号：US11003884B2
公开(公告)日：2021-05-11
申请号：US15430389
申请日：2017-02-10
Applicant: QUALCOMM Incorporated
Inventor： Nicholas Ian Buchan , Mario Francisco Velez , Chin-Jen Tseng , Hrishikesh Vijaykumar Panchawagh , Firas Sammoura , Jessica Liu Strohmann , Kostadin Dimitrov Djordjev , David William Burns , Leonard Eugene Fennell , Jon Gregory Aday
IPC: G06K9/00 , G01N29/22 , G01N29/24 , H01L41/047 , H01L41/107 , G02F1/1333 , H01L27/32
Abstract: A fingerprint sensor device includes a sensor substrate, a plurality of sensor circuits over a first surface of the sensor substrate, and a transceiver layer located over the plurality of sensor circuits and the first surface of the sensor substrate. The transceiver layer includes a piezoelectric layer and a transceiver electrode positioned over the piezoelectric layer. The piezoelectric layer and the transceiver electrode are configured to generate one or more ultrasonic waves or to receive one or more ultrasonic waves. The fingerprint sensor device may include a cap coupled to the sensor substrate and a cavity formed between the cap and the sensor substrate. The cavity and the sensor substrate may form an acoustic barrier.
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公开(公告)号：US10891458B2
公开(公告)日：2021-01-12
申请号：US16289394
申请日：2019-02-28
Applicant: QUALCOMM Incorporated
Inventor： Jae Hyeong Seo , Kostadin Dimitrov Djordjev , Hrishikesh Vijaykumar Panchawagh , Sameer Wadhwa , Nicholas Ian Buchan , Yipeng Lu
Abstract: An ultrasonic fingerprint sensor system of the present disclosure may be provided with an ultrasonic transmitter or ultrasonic transceiver having an electrode layer divided into a plurality of electrode segments. The ultrasonic fingerprint sensor system may detect an object over one or more electrode segments and provide a voltage burst to one or more selected electrode segments for localized generation of ultrasonic waves. The localized generation of ultrasonic waves may facilitate localized readout for imaging. In some implementations, the voltage burst may be provided in a single-ended drive scheme or differential drive scheme.
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公开(公告)号：US20200279087A1
公开(公告)日：2020-09-03
申请号：US16289394
申请日：2019-02-28
Applicant: QUALCOMM Incorporated
Inventor： Jae Hyeong Seo , Kostadin Dimitrov Djordjev , Hrishikesh Vijaykumar Panchawagh , Sameer Wadhwa , Nicholas Ian Buchan , Yipeng Lu
Abstract: An ultrasonic fingerprint sensor system of the present disclosure may be provided with an ultrasonic transmitter or ultrasonic transceiver having an electrode layer divided into a plurality of electrode segments. The ultrasonic fingerprint sensor system may detect an object over one or more electrode segments and provide a voltage burst to one or more selected electrode segments for localized generation of ultrasonic waves. The localized generation of ultrasonic waves may facilitate localized readout for imaging. In some implementations, the voltage burst may be provided in a single-ended drive scheme or differential drive scheme.
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公开(公告)号：US09323393B2
公开(公告)日：2016-04-26
申请号：US14071362
申请日：2013-11-04
Applicant: QUALCOMM Incorporated
Inventor： Kostadin Dimitrov Djordjev , Leonard Eugene Fennell , Nicholas Ian Buchan , David William Burns , Samir K. Gupta , Sanghoon Bae
CPC classification number: G06F3/0421 , G06K9/0002
Abstract: Various techniques and apparatuses are disclosed that provide for pixelated display modules that integrate an ultrasonic fingerprint or biometric sensing capability. In some implementations, the ultrasonic fingerprint sensor and the display components of the display module may share a common backplane. In some implementations, the ultrasonic fingerprint sensor may share a flex cable with other components in the display module. In some implementations, the ultrasonic fingerprint sensor may leverage conductive traces on a cover glass used to provide for touch input to the display module.
Abstract translation: 公开了提供集成超声波指纹或生物测定感测能力的像素化显示模块的各种技术和装置。 在一些实施方案中，超声波指纹传感器和显示模块的显示部件可以共享共同的背板。 在一些实施方案中，超声波指纹传感器可以与显示模块中的其他部件共享柔性电缆。 在一些实施方案中，超声波指纹传感器可以利用用于提供对显示模块的触摸输入的盖玻片上的导电迹线。
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公开(公告)号：US20230177863A1
公开(公告)日：2023-06-08
申请号：US18103060
申请日：2023-01-30
Applicant: QUALCOMM Incorporated
Inventor： Hrishikesh Vijaykumar Panchawagh , IIa Ravindra Badge , Yipeng LU , Kostadin Dimitrov Djordjev , Suryaprakash Ganti , Chin-Jen Tseng , Nicholas Ian Buchan , Tsongming Kao , Leonard Eugene Fennell , Firas Sammoura , Jessica Liu Strohmann , David William Burns
CPC classification number: G06V40/1306 , G01S15/8925 , G01S7/52079 , B06B1/0677 , G01S15/8913 , H10K59/00 , H10K59/65 , H10K77/111
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.
