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公开(公告)号：US10235552B2
公开(公告)日：2019-03-19
申请号：US15633164
申请日：2017-06-26
发明人： 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
摘要： 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：US20160350573A1
公开(公告)日：2016-12-01
申请号：US15115058
申请日：2015-03-05
发明人： Jack Conway Kitchens, II , John Keith Schneider , Ashish Hinger , Ranjith Ranganathan , Nai-Kuei Kuo , Kostadin Dimitrov Djordjev , Stephen Michael Gojevic , David William Burns , Nao Sugawara Chuei , Eliza Yingzi Du , Ming Yu Chen , Kwokleung Chan , Jin Gu , Esra Vural
CPC分类号： G06K9/0002 , G01S15/8952 , G06K9/00067 , G06K9/00114 , G06K9/6289
摘要： Systems and methods for multi-spectral ultrasonic imaging are disclosed. In one embodiment, a finger is scanned at a plurality of ultrasonic scan frequencies. Each scan frequency provides an image information set describing a plurality of pixels of the finger including a signal-strength indicating an amount of energy reflected from a surface of a platen on which a finger is provided. For each of the pixels, the pixel output value corresponding to each of the scan frequencies is combined to produce a combined pixel out put value for each pixel. Systems and methods for improving the data capture of multi-spectral ultrasonic imaging are also disclosed.
摘要翻译： 公开了用于多光谱超声成像的系统和方法。 在一个实施例中，以多个超声波扫描频率扫描手指。 每个扫描频率提供描述手指的多个像素的图像信息集，其包括指示从其上提供手指的台板的表面反射的能量的信号强度。 对于每个像素，对应于每个扫描频率的像素输出值被组合以产生每个像素的组合像素输出值。 还公开了用于改进多光谱超声成像的数据捕获的系统和方法。
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公开(公告)号：US10410034B2
公开(公告)日：2019-09-10
申请号：US15804902
申请日：2017-11-06
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.
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公开(公告)号：US20190073507A1
公开(公告)日：2019-03-07
申请号：US16183686
申请日：2018-11-07
发明人： 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
摘要： 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：US20170090028A1
公开(公告)日：2017-03-30
申请号：US14864555
申请日：2015-09-24
发明人： Kostadin Dimitrov Djordjev , Christopher Mark William Daft , David William Burns , Ashish Hinger , Hrishikesh Vijaykumar Panchawagh
CPC分类号： G01S15/89 , G01S7/52079 , G01S7/521 , G01S15/8906 , G01S15/8956 , G06K9/0002
摘要： 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：US20170090024A1
公开(公告)日：2017-03-30
申请号：US15253387
申请日：2016-08-31
发明人： Jack Conway Kitchens, II , John Keith Schneider , Stephen Michael Gojevic , Philip John Schneider , Evan Michael Breloff , Ashish Hinger , David William Burns , Muhammed Ibrahim Sezan
CPC分类号： G06K9/00885 , A61B5/1172 , A61B5/6898 , A61B8/0858 , A61B8/5223 , A61B8/54 , G01S7/52036 , G01S7/52061 , G06K9/0002 , G06K9/2009 , G06K2009/00932
摘要： 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：US11017251B2
公开(公告)日：2021-05-25
申请号：US16167415
申请日：2018-10-22
发明人： Jack Conway Kitchens, II , John Keith Schneider , Stephen Michael Gojevic , Philip John Schneider , Evan Michael Breloff , Ashish Hinger , David William Burns , Muhammed Ibrahim Sezan
摘要： 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：US10733409B2
公开(公告)日：2020-08-04
申请号：US16183686
申请日：2018-11-07
发明人： 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
摘要： 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：US20180129849A1
公开(公告)日：2018-05-10
申请号：US15804902
申请日：2017-11-06
CPC分类号： G06K9/0002 , G06F21/32 , G06K9/00026 , G06K9/0012 , G06K9/2018
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.
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公开(公告)号：US20180031686A1
公开(公告)日：2018-02-01
申请号：US15782750
申请日：2017-10-12
发明人： Nai-Kuei Kuo , Kostadin Dimitrov Djordjev , Ranjith Ranganathan , Nao Sugawara Chuei , Ashish Hinger , David William Burns
CPC分类号： G01S7/52017 , G01S15/02 , G06K9/0002
摘要： 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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