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公开(公告)号：US09897682B2
公开(公告)日：2018-02-20
申请号：US14229778
申请日：2014-03-28
Applicant: QUALCOMM Incorporated
Inventor： Nathan Altman , Noam Z. Kedem , Vadim Winebrand , Gal Rotem , Meir Agassy , Arye Lerner
IPC: G01S3/808 , G06F3/043 , G06F3/0354
CPC classification number: G01S3/8083 , G06F3/03545 , G06F3/0433
Abstract: A synchronization system for an acoustic signal-based positioning system is provided that generates a magnetic field as a synchronization signal. The magnetic synchronization signal is transmitted by a transmitter of the positioning system and received by the receiver of the positioning system. The receiver may include a magnetic synchronization signal receiver that may receive the magnetic synchronization signal on a same acoustic channel as an acoustic positioning signal. Moreover, the magnetic synchronization signal receiver may be a component already present in the receiver and capable of receiving a magnetic synchronization signal.
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公开(公告)号：US10262188B2
公开(公告)日：2019-04-16
申请号：US15432125
申请日：2017-02-14
Applicant: QUALCOMM Incorporated
Inventor： Meir Agassy , Boaz Castro , Arye Lerner , Gal Rotem , Liran Galili , Nathan Altman
IPC: G06K9/00
Abstract: Embodiments of apparatuses and methods for detecting a spoof finger are disclosed. In one embodiment, an ultrasonic fingerprint sensor comprises an ultrasonic transmitter configured to transmit an ultrasonic wave to a finger, an ultrasonic sensor array configured to receive a reflected ultrasonic wave from the finger, and a controller configured to determine a reflected acoustic energy of the finger based on a difference between average amplitudes of the reflected ultrasonic wave from ridges and valleys of the finger; and determine whether the finger is a spoof based at least in part on the reflected acoustic energy of the finger.
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公开(公告)号：US09830497B2
公开(公告)日：2017-11-28
申请号：US15198686
申请日：2016-06-30
Applicant: QUALCOMM Incorporated
Inventor： Meir Agassy , Gal Rotem
IPC: G06K9/00
CPC classification number: G06K9/00067 , G06K9/0002 , G06K9/00087
Abstract: Embodiments of correcting diffraction effects in an ultrasonic sensor are disclosed. In one embodiment, an ultrasonic sensor 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, where the reflected wave comprises a plurality of images of a fingerprint having a plurality of phases in a time sequence, and a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer. The ultrasonic sensor may further include an ultrasonic sensor array and a processor configured to sum the plurality of images multiplied by a complex phase exponential to form an integrated complex image, align the integrated complex image to a pre-selected phase to form an aligned complex image, determine a maximum energy phase using the aligned complex image, and compute a maximum energy image to represent the fingerprint based at least in part on the aligned complex image at the maximum energy phase.
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公开(公告)号：US20170231534A1
公开(公告)日：2017-08-17
申请号：US15432125
申请日：2017-02-14
Applicant: QUALCOMM Incorporated
Inventor： Meir Agassy , Boaz Castro , Arye Lerner , Gal Rotem , Liran Galili , Nathan Altman
IPC: G06T7/20
CPC classification number: G06K9/00107 , G06K9/0002 , G06K9/001 , G06K9/0012
Abstract: Embodiments of apparatuses and methods for detecting a spoof finger are disclosed. In one embodiment, an ultrasonic fingerprint sensor comprises an ultrasonic transmitter configured to transmit an ultrasonic wave to a finger, an ultrasonic sensor array configured to receive a reflected ultrasonic wave from the finger, and a controller configured to determine a reflected acoustic energy of the finger based on a difference between average amplitudes of the reflected ultrasonic wave from ridges and valleys of the finger; and determine whether the finger is a spoof based at least in part on the reflected acoustic energy of the finger.
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公开(公告)号：US11204990B2
公开(公告)日：2021-12-21
申请号：US16899356
申请日：2020-06-11
Applicant: QUALCOMM Incorporated
Inventor： Meir Agassy , Noam Dagan , Gal Rotem
Abstract: An apparatus and method for device security, wherein a fingerprint image is acquired on a touchscreen, and an authentication process is performed based on the first fingerprint image. Thereafter, a second fingerprint image is acquired and a difference between a characteristic of the first and second fingerprint images is determined, and based upon whether this difference is greater than a threshold, a second authentication process is performed.
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Patent Agency Ranking
公开(公告)号：US10691781B2
公开(公告)日：2020-06-23
申请号：US15798327
申请日：2017-10-30
Applicant: QUALCOMM Incorporated
Inventor： Meir Agassy , Noam Dagan , Gal Rotem
Abstract: An apparatus and method for device security, wherein a fingerprint image is acquired on a touchscreen, and an authentication process is performed based on the first fingerprint image. Thereafter, a second fingerprint image is acquired and a difference between a characteristic of the first and second fingerprint images is determined, and based upon whether this difference is greater than a threshold, a second authentication process is performed.
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公开(公告)号：US12032667B2
公开(公告)日：2024-07-09
申请号：US17457425
申请日：2021-12-02
Applicant: QUALCOMM Incorporated
Inventor： Meir Agassy , Noam Dagan , Gal Rotem
CPC classification number: G06F21/32 , G06F3/0416 , G06F3/04883 , G06V40/1306 , G06V40/1347 , G06V40/1365 , H04L9/3231 , H04L63/0861 , G06F2221/2113 , G06F2221/2139 , G06F2221/2151
Abstract: An apparatus and method for device security, wherein a fingerprint image is acquired on a touchscreen, and an authentication process is performed based on the first fingerprint image. Thereafter, a second fingerprint image is acquired and a difference between a characteristic of the first and second fingerprint images is determined, and based upon whether this difference is greater than a threshold, a second authentication process is performed.
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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：US20180373393A1
公开(公告)日：2018-12-27
申请号：US15952206
申请日：2018-04-12
Applicant: QUALCOMM Incorporated
Inventor： Arye Lerner , Lior Maor , Gal Rotem , Meir Agassy
IPC: G06F3/043 , G06F3/0488 , G06F3/044 , G06K9/00
Abstract: Methods and apparatuses for detecting touch motion with ultrasonic sensors are disclosed. In one embodiment, a method of detecting a touch motion with an ultrasonic sensor in an imaging apparatus may include sensing a series of scanned ultrasonic images of the touch motion, removing common components in the series of scanned ultrasonic images, determining correlations among the series of scanned ultrasonic images, and determining the touch motion based on the correlations among the series of scanned ultrasonic images.
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公开(公告)号：US20170004347A1
公开(公告)日：2017-01-05
申请号：US15198686
申请日：2016-06-30
Applicant: QUALCOMM Incorporated
Inventor： Meir Agassy , Gal Rotem
IPC: G06K9/00
CPC classification number: G06K9/00067 , G06K9/0002 , G06K9/00087
Abstract: Embodiments of correcting diffraction effects in an ultrasonic sensor are disclosed. In one embodiment, an ultrasonic sensor 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, where the reflected wave comprises a plurality of images of a fingerprint having a plurality of phases in a time sequence, and a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer. The ultrasonic sensor may further include an ultrasonic sensor array and a processor configured to sum the plurality of images multiplied by a complex phase exponential to form an integrated complex image, align the integrated complex image to a pre-selected phase to form an aligned complex image, determine a maximum energy phase using the aligned complex image, and compute a maximum energy image to represent the fingerprint based at least in part on the aligned complex image at the maximum energy phase.
Abstract translation: 公开了在超声波传感器中校正衍射效应的实施例。 在一个实施例中，超声波传感器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层，其中反射波包括多个具有多个 时间序列中的相位和被配置为保护超声波发射器和压电接收器层的压板层。 超声波传感器还可以包括超声波传感器阵列和处理器，其被配置为将乘以复相位指数的多个图像相加以形成集成复合图像，将集成复合图像对准预选相位以形成对准复合图像 使用对准的复合图像确定最大能量相位，并且至少部分地基于在最大能量相位处的对准的复数图像来计算表示指纹的最大能量图像。
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