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公开(公告)号：US11651610B2
公开(公告)日：2023-05-16
申请号：US15994808
申请日：2018-05-31
Applicant: QUALCOMM Incorporated
Inventor： Lior Maor , Meir Agassy , Boaz Castro
CPC classification number: G06V40/1306 , A61B8/02 , A61B8/08 , A61B8/5223 , G06V40/1382
Abstract: An ultrasonic fingerprint sensor in a mobile device is operated to capture an initial snapshot of reflection from a finger's surface, of acoustic energy transmitted at a first frequency. Additionally, the ultrasonic fingerprint sensor is operated repeatedly to capture over time, a sequence of sets, each set including one or more additional snapshots of reflection from one or more depths within the finger, of acoustic energy transmitted at a second frequency significantly lower than the first frequency. Measurements in the additional snapshots are processed to determine whether any signal oscillating at a rate in a normal range for heart rate or respiration rate is present. When a signal is found, its rate may be used in several ways, e.g. to enable functionality when a fingerprint in the initial snapshot matches a reference fingerprint, or to identify and track a heart rate (or a respiration rate) based on the signal's rate.
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公开(公告)号：US10685204B2
公开(公告)日：2020-06-16
申请号：US16048188
申请日：2018-07-27
Applicant: QUALCOMM Incorporated
Inventor： Lior Maor , Meir Agassy , Boaz Castro
Abstract: An apparatus may include an ultrasonic fingerprint sensor system and a control system. The control system may be configured for obtaining, via a scan of the fingerprint sensor system, current fingerprint image data from a surface of a target object, for extracting current fingerprint features from the current fingerprint image data and for determining whether the current fingerprint features match features of a previously-acquired fingerprint enrollment template. If there is a match, the control system may be configured for obtaining, via one or more additional scans of the fingerprint sensor system, current subsurface image data from a subsurface of the target object, for calculating an estimated biometric age of the target object, based at least in part on the current subsurface image data and for determining whether the estimated biometric age of the target object matches a previously-estimated biometric age.
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Patent Agency Ranking
公开(公告)号：US09052991B2
公开(公告)日：2015-06-09
申请号：US13686895
申请日：2012-11-27
Applicant: QUALCOMM Incorporated
Inventor： Boaz Castro
CPC classification number: G06F17/00 , H03H17/0628
Abstract: A method for audio sample rate conversion may include receiving an audio signal at a first rate, the audio signal having a fundamental frequency, determining absolute derivatives of the audio signal at the first rate, and generating a weighted sum of the absolute derivatives to arrive at a combined absolute derivative. The combined absolute derivative may be analyzed to locate a local minimum of the combined absolute derivative, a location in the audio signal may be selected based on the local minimum of the combined absolute derivative and at least one audio sample in the audio signal may be altered at the selected location to develop an audio signal at a second rate.
Abstract translation: 用于音频采样率转换的方法可以包括以第一速率接收音频信号，音频信号具有基频，以第一速率确定音频信号的绝对导数，并产生绝对导数的加权和以得到 一个绝对衍生的组合。 可以分析组合的绝对导数以定位组合绝对导数的局部最小值，可以基于组合绝对导数的局部最小值来选择音频信号中的位置，并且音频信号中的至少一个音频采样可以被改变 在所选择的位置以以第二速率开发音频信号。
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公开(公告)号：US20140152503A1
公开(公告)日：2014-06-05
申请号：US13692925
申请日：2012-12-03
Applicant: QUALCOMM INCORPORATED
Inventor： Boaz Castro
IPC: G01S3/28
CPC classification number: G01S3/28 , G01S3/30 , G01S3/46 , G01S3/8036 , G01S3/8083
Abstract: A linear array of sensors includes at least two omni-directional sensors and at least one directional sensor, with the axis of sensitivity of the directional sensor arranged, e.g., perpendicular to the linear axis of the linear array. The omni-directional sensors and directional sensor receive a signal and in response produce output signals. The direction of arrival of the received signal is estimated with a 360° range using the output signals of the omni-directional sensors and directional sensor. For example, two symmetric solutions for the direction of arrival of the received signal may be determined using the output signals of the omni-directional sensors, and the output signal from the directional sensor is used to determine the correct solution.
Abstract translation: 传感器的线性阵列包括至少两个全向传感器和至少一个定向传感器，定向传感器的灵敏度轴例如垂直于线性阵列的线性轴排列。 全向传感器和方向传感器接收信号并作为响应产生输出信号。 使用全向传感器和定向传感器的输出信号，以360°的范围估计接收信号的到达方向。 例如，可以使用全向传感器的输出信号来确定用于接收信号的到达方向的两个对称解，并且使用来自方向传感器的输出信号来确定正确的解决方案。
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公开(公告)号：US20200034593A1
公开(公告)日：2020-01-30
申请号：US16048188
申请日：2018-07-27
Applicant: QUALCOMM Incorporated
Inventor： Lior Maor , Meir Agassy , Boaz Castro
Abstract: An apparatus may include an ultrasonic fingerprint sensor system and a control system. The control system may be configured for obtaining, via a scan of the fingerprint sensor system, current fingerprint image data from a surface of a target object, for extracting current fingerprint features from the current fingerprint image data and for determining whether the current fingerprint features match features of a previously-acquired fingerprint enrollment template. If there is a match, the control system may be configured for obtaining, via one or more additional scans of the fingerprint sensor system, current subsurface image data from a subsurface of the target object, for calculating an estimated biometric age of the target object, based at least in part on the current subsurface image data and for determining whether the estimated biometric age of the target object matches a previously-estimated biometric age.
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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：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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