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公开(公告)号：US10274590B2
公开(公告)日：2019-04-30
申请号：US15782750
申请日：2017-10-12
Applicant: QUALCOMM Incorporated
Inventor： Nai-Kuei Kuo , Kostadin Dimitrov Djordjev , Ranjith Ranganathan , Nao Sugawara Chuei , Ashish Hinger , David William Burns
Abstract: Techniques describe structures and methods for generating larger output signals and improving image quality of ultrasonic sensors by inclusion of an acoustic cavity in the sensor stack. In some embodiments, an ultrasonic sensor unit may be tuned during manufacturing or during a provisioning phase to work with different thicknesses and materials. In some embodiments, a standing wave signal may be generated using an acoustic cavity in the ultrasonic sensor unit for capturing an ultrasonic image of an object placed on a sensor surface. In some implementations, the ultrasonic sensor may include an ultrasonic transmitter, a piezoelectric receiver, a thin film transistor (TFT) layer and a TFT substrate positioned between the transmitter and the receiver, one or more adhesive layers, and optional cover materials and coatings. The thickness, density and speed of sound of the sensor materials and associated adhesive attachment layers may be used to attain the desired acoustic cavity and improved performance.
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公开(公告)号：US20190057267A1
公开(公告)日：2019-02-21
申请号：US16167415
申请日：2018-10-22
Applicant: QUALCOMM Incorporated
Inventor： Jack Conway Kitchens, II , John Keith Schneider , Stephen Michael Gojevic , Philip John Schneider , Evan Michael Breloff , Ashish Hinger , David William Burns , Muhammed Ibrahim Sezan
IPC: G06K9/00
Abstract: An apparatus may include an ultrasonic sensor array and a control system. The control system may be configured to acquire first image data generated by the ultrasonic sensor array corresponding to at least one first reflected ultrasonic wave received by at least a portion of the ultrasonic sensor array from a target object during a first acquisition time window. The control system may be configured to acquire second image data generated by the ultrasonic sensor array corresponding to at least one second reflected ultrasonic wave received by at least a portion of the ultrasonic sensor array from the target object during a second acquisition time window that is longer than the first acquisition time window. The control system may further be configured to initiate an authentication process based on the first image data and the second image data.
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公开(公告)号：US10067229B2
公开(公告)日：2018-09-04
申请号：US14864555
申请日：2015-09-24
Applicant: QUALCOMM Incorporated
Inventor： Kostadin Dimitrov Djordjev , Christopher Mark William Daft , David William Burns , Ashish Hinger , Hrishikesh Vijaykumar Panchawagh
Abstract: Methods, systems and storage media are described, each of which may be used to generate an image of an object using ultrasonic plane waves. For example, the generated image may be of a target object positioned on a platen surface. The image may be derived from corrected output signals obtained from a plurality of selected sensor pixels. The corrected output signals may adjust for diffraction of reflected ultrasonic plane waves from a target object positioned on the platen surface. The target object may be a finger or a tip of a stylus.
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公开(公告)号：US20180101711A1
公开(公告)日：2018-04-12
申请号：US15633164
申请日：2017-06-26
Applicant: QUALCOMM Incorporated
Inventor： Sandeep Louis D'Souza , Vadim Winebrand , Ashish Hinger , Paul Penchin Pan , Meir Agassy , Yizhaq Abudi , Micah Timothy Lawrence , Jong Soo Kim , Sherman Sebastian Antao , Bo-Ren Wang , Masoud Roham , Lennart Karl Mathe , Nathan Felix Altman , Suryaprakash Ganti , David William Burns
CPC classification number: G06K9/0002 , G06F21/32 , G06K9/228
Abstract: Systems, methods and apparatus for configuring a fingerprint sensor to operate in a capacitive sensing mode and an ultrasonic sensing mode are disclosed. A fingerprint sensor may be configured to operate in a capacitive sensing mode by driving a sensing electrode using a controller. In some implementations, an object positioned on or near the sensing electrode may be detected using the fingerprint sensor in the capacitive sensing mode, and the controller can drive electrodes of the fingerprint sensor differently to configure the fingerprint sensor to operate in an ultrasonic sensing mode. In some implementations, an applications processor may be instructed to authenticate a fingerprint of the object from image data obtained when the fingerprint sensor is operating in the ultrasonic sensing mode. In some implementations, a display of a mobile device containing the fingerprint sensor may be unlocked, or the mobile device may be woken up when the fingerprint is authenticated.
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公开(公告)号：US20170285877A1
公开(公告)日：2017-10-05
申请号：US15474084
申请日：2017-03-30
Applicant: QUALCOMM Incorporated
Inventor： Ashish Hinger
CPC classification number: G06F3/0416 , A61B5/1172 , B06B1/0622 , G01H1/00 , G01N29/2437 , G01N29/26 , G06F3/03547 , G06F3/043 , G06F2203/0338 , G06K9/0002 , H03K17/74 , H04R17/005 , H04R17/10
Abstract: This disclosure provides some implementations of systems, methods and apparatus associated with a drive scheme for ultrasonic transducer pixel readout. In some implementations, a piezoelectric ultrasonic transducer has a first electrode, a second electrode, and a piezoelectric layer disposed between the first and second electrodes. The second electrode is coupled with a sampling node. A sampling diode has an input and an output. The input is coupled to receive a diode bias signal. The output is coupled with the sampling node. Controller circuitry is configured to control the diode bias signal to at least partially drive a voltage at the sampling node. Read circuitry is coupled with the sampling node to read the voltage.
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Patent Agency Ranking
公开(公告)号：US10140534B2
公开(公告)日：2018-11-27
申请号：US15253387
申请日：2016-08-31
Applicant: QUALCOMM Incorporated
Inventor： Jack Conway Kitchens, II , John Keith Schneider , Stephen Michael Gojevic , Philip John Schneider , Evan Michael Breloff , Ashish Hinger , David William Burns , Muhammed Ibrahim Sezan
Abstract: An apparatus may include an ultrasonic sensor array and a control system. The control system may be configured to acquire first image data generated by the ultrasonic sensor array corresponding to at least one first reflected ultrasonic wave received by at least a portion of the ultrasonic sensor array from a target object during a first acquisition time window. The control system may be configured to acquire second image data generated by the ultrasonic sensor array corresponding to at least one second reflected ultrasonic wave received by at least a portion of the ultrasonic sensor array from the target object during a second acquisition time window that is longer than the first acquisition time window. The control system may further be configured to initiate an authentication process based on the first image data and the second image data.
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公开(公告)号：US10095907B2
公开(公告)日：2018-10-09
申请号：US15235043
申请日：2016-08-11
Applicant: QUALCOMM Incorporated
Inventor： Ashish Hinger
Abstract: Disclosed herein are techniques for generating an image of a target object using a sensor. The sensor includes a substrate and a single transceiver. The transceiver includes a first electrode, a second electrode, and a layer of electrical material positioned between the two electrodes. The transceiver also includes a control unit configured to switch the transceiver into a transmit mode or a receive mode. The transceiver further includes a receiving circuit configured to receive, store, and output a detection signal caused by an interaction between the sensor and the target object. The second electrode, the control unit, and the receiving circuit can be formed on the substrate.
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公开(公告)号：US09945818B2
公开(公告)日：2018-04-17
申请号：US14628211
申请日：2015-02-20
Applicant: QUALCOMM Incorporated
Inventor： Suryaprakash Ganti , Srikanth Chilukuru , Livingstone Song , Kostadin Dimitrov Djordjev , Jack Conway Kitchens , John Schneider , Nicholas Ian Buchan , Leonard Eugene Fennell , Hrishikesh Vijaykumar Panchawagh , Ashish Hinger , Nai-Kuei Kuo , Kollengode Narayanan , Samir Kumar Gupta , Timothy Dickinson , Max Hamel , David William Burns , Muhammed Ibrahim Sezan , Eugene Dantsker
CPC classification number: G01N29/09 , G01N2291/018 , G06K9/0002
Abstract: Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave.
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公开(公告)号：US20180046836A1
公开(公告)日：2018-02-15
申请号：US15235043
申请日：2016-08-11
Applicant: QUALCOMM Incorporated
Inventor： Ashish Hinger
IPC: G06K9/00
CPC classification number: G06K9/0002 , G01S7/52079 , G06K9/0008
Abstract: Disclosed herein are techniques for generating an image of a target object using a sensor. The sensor includes a substrate and a single transceiver. The transceiver includes a first electrode, a second electrode, and a layer of electrical material positioned between the two electrodes. The transceiver also includes a control unit configured to switch the transceiver into a transmit mode or a receive mode. The transceiver further includes a receiving circuit configured to receive, store, and output a detection signal caused by an interaction between the sensor and the target object. The second electrode, the control unit, and the receiving circuit can be formed on the substrate.
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公开(公告)号：US20150241393A1
公开(公告)日：2015-08-27
申请号：US14628211
申请日：2015-02-20
Applicant: QUALCOMM Incorporated
Inventor： Suryaprakash Ganti , Srikanth Chilukuru , Livingstone Song , Kostadin Dimitrov Djordjev , Jack Conway Kitchens , John Schneider , Nicholas Ian Buchan , Leonard Eugene Fennell , Hrishikesh Vijaykumar Panchawagh , Ashish Hinger , Nai-Kuei Kuo , Kollengode Narayanan , Samir Kumar Gupta , Timothy Dickinson , Max Hamel , David William Burns , Muhammed Ibrahim Sezan , Eugene Dantsker
IPC: G01N29/09
CPC classification number: G01N29/09 , G01N2291/018 , G06K9/0002
Abstract: Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave.
Abstract translation: 公开了超声波按钮的实施例和使用超声波按钮的方法。 在一个实施例中，超声波按钮可以包括被配置为传送超声波的超声波发射器，被配置为接收超声波的反射波的压电接收器层，被配置为保护超声波发射器和压电接收器层的压板层， 第一匹配层，其被配置为将压板层的声阻抗与手指的脊的声阻抗匹配;以及超声波传感器阵列，被配置为使用反射波来检测手指。
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