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公开(公告)号：US10705656B2
公开(公告)日：2020-07-07
申请号：US15827528
申请日：2017-11-30
IPC分类号： G06F3/043 , G01S7/52 , B06B1/06 , G06F1/16 , G01S15/89 , G06F3/041 , B06B1/02 , G01H11/08 , G06K9/00 , H04L29/06 , H04W12/06
摘要： A system and method for ultrasonic sensing, wherein an ultrasonic receiver array includes multiple ultrasonic sensor pixels, and each sensor pixel includes an ultrasonic receiver configured to read an ultrasonic signal. An ultrasonic transmitter array, composed of multiple elements, transmits ultrasonic signals which may be reflected from an object and received at the ultrasonic receivers, wherein a sensor controller applies excitation signals to the transmitter array with a temporal delay between excitation signals.
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公开(公告)号：US11087108B2
公开(公告)日：2021-08-10
申请号：US16691416
申请日：2019-11-21
发明人： 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
摘要： 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：US20200175291A1
公开(公告)日：2020-06-04
申请号：US16208424
申请日：2018-12-03
IPC分类号： G06K9/00
摘要： An apparatus may include an ultrasonic sensor system and a control system. The control system may be configured to distinguish, according to image data acquired via an ultrasonic sensor system, the pyroelectric effect caused by an actual human finger from the pyroelectric effect caused by a sleeve-type spoof or a “fake finger” spoof. Some such examples involve obtaining multiple frames of ultrasonic image data of a target object on or near a platen of an ultrasonic sensor system via the ultrasonic sensor system and determining at least one target object pyroelectric indication based, at least in part, on the multiple frames of ultrasonic image data.
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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
发明人： 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
摘要： 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：US10725590B2
公开(公告)日：2020-07-28
申请号：US15828187
申请日：2017-11-30
发明人： James Anthony Miranto , Steven Pezanoski , Stephen James Potter , Todd Campbell , Jack Conway Kitchens , Stephen Michael Gojevic
IPC分类号： G06F3/043 , G01S7/52 , B06B1/06 , G06F1/16 , G01S15/89 , G06F3/041 , B06B1/02 , G01H11/08 , G06K9/00 , H04L29/06 , H04W12/06
摘要： An apparatus includes an ultrasonic sensor array and a sensor controller. The sensor array includes a plurality of ultrasonic sensor pixels, each sensor pixel including an ultrasonic receiver and a receiver bias electrode and being operable in one or both of a transmit mode of operation or a read mode of operation. The sensor controller is electrically coupled with the receiver bias electrodes. The sensor controller is configured to set, at each sensor pixel, a range gate window (RGW) by modulating a bias voltage applied to the receiver bias electrode and to set, for a first portion of the ultrasonic sensor pixels, a first RGW. The sensor controller is configured to set, for a second portion of the ultrasonic sensor pixels, a second RGW, and establish a first temporal delay between the first RGW and the second RGW.
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公开(公告)号：US11086453B2
公开(公告)日：2021-08-10
申请号：US15827529
申请日：2017-11-30
发明人： James Anthony Miranto , Jack Conway Kitchens , Stephen Michael Gojevic , Todd Campbell , Stephen James Potter , Steven Pezanoski
IPC分类号： G06F3/043 , G01S7/52 , B06B1/06 , G06F1/16 , G01S15/89 , G06F3/041 , B06B1/02 , G01H11/08 , G06K9/00 , H04L29/06 , H04W12/06
摘要： An apparatus includes an ultrasonic transmitter, an ultrasonic receiver, and an acoustic delay gradient layer disposed in an acoustic path between the ultrasonic transmitter and the ultrasonic receiver. The acoustic delay gradient layer is configured to cause a reflection from a platen interface of the transmitted ultrasonic signal to reach the first receiver region at a first time and the reflection from the platen interface of the transmitted ultrasonic signal to reach the second receiver region at a second time that is different from the first time. The apparatus can further include a controller configured to set for a first region or portion of the receiver, a first range gate window (RGW). The controller is also configured to set, for a second region or portion of the receiver, a second RGW, and to establish a first temporal delay between the first RGW and the second RGW.
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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
发明人： 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分类号： G01N29/09 , G01N2291/018 , G06K9/0002
摘要： 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：US20150241393A1
公开(公告)日：2015-08-27
申请号：US14628211
申请日：2015-02-20
发明人： 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分类号： G01N29/09
CPC分类号： G01N29/09 , G01N2291/018 , G06K9/0002
摘要： 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.
摘要翻译： 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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公开(公告)号：US20230252815A1
公开(公告)日：2023-08-10
申请号：US18301632
申请日：2023-04-17
发明人： Jack Conway Kitchens , John Keith Schneider , Evan Michael Breloff , Emily Kathryn Brooks , Stephen Michael Gojevic , James Anthony Miranto , Alexei Stoianov , Fitzgerald John Archibald
CPC分类号： G06V40/1306 , G06F21/32 , G01N29/2437
摘要： The described techniques support a sensing scheme for electromagnetic excitation in ultrasonic imaging sensors. A biological tissue may be sensed and imaged using an electromagnetic excitation process to generate ultrasonic waves, such as, within the tissue. A component of a device may generate one or more pulses of electromagnetic waves, which may encounter and enter the biological tissue. The electromagnetic waves may excite the biological tissue and generate ultrasonic waves via expansion and contraction of the tissue upon heating. The ultrasonic waves may propagate within the biological tissue and may be sensed by an ultrasonic receiver array. The ultrasonic waves may be converted to pixel image data of a biometric image and may be used for biometric authentication. This process may be repeated to reconstruct an image of the finger at multiple plane slices of the finger.
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公开(公告)号：US11017195B2
公开(公告)日：2021-05-25
申请号：US16454550
申请日：2019-06-27
发明人： Jack Conway Kitchens , John Keith Schneider , Stephen Michael Gojevic , Evan Michael Breloff , Emily Kathryn Brooks , Alexei Stoianov , Fitzgerald John Archibald , James Anthony Miranto
摘要： The described techniques support a sensing scheme for electromagnetic excitation in ultrasonic imaging sensors. A biological tissue may be sensed and imaged using an electromagnetic excitation process to generate ultrasonic waves, such as, within the tissue. A component of a device may generate one or more pulses of electromagnetic waves, which may encounter and enter the biological tissue. In some examples, the component may be a display interface or may be different from a display interface of the device. The electromagnetic waves may excite the biological tissue and generate ultrasonic waves via expansion and contraction of the tissue upon heating. The ultrasonic waves may propagate within the biological tissue and may be sensed by an ultrasonic receiver array. The sensed ultrasonic waves may be converted to pixel image data of a biometric image and may be used for biometric authentication.
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