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公开(公告)号：US20170200054A1
公开(公告)日：2017-07-13
申请号：US15472173
申请日：2017-03-28
Applicant: QUALCOMM Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , David William Burns , Suryaprakash Ganti , John Keith Schneider , Saurav Kumar Bandyopadhyay , Jin Gu
IPC: G06K9/00
CPC classification number: G06K9/00906 , G06K9/0002 , G06K9/00093 , G06K9/001 , G06K9/00107 , G06K9/00114 , G06T7/32 , G06T7/337 , G06T7/344 , G06T7/44 , G06T2207/10132 , G06T2207/20064 , G06T2207/20072
Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.
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2.发明申请OPTIMIZING AUDIO PROCESSING FUNCTIONS BY DYNAMICALLY COMPENSATING FOR VARIABLE DISTANCES BETWEEN SPEAKER(S) AND MICROPHONE(S) IN A MOBILE DEVICE 有权通过动态补偿在移动设备中的扬声器（S）和麦克风之间的可变距离来优化音频处理功能公开(公告)号：US20130156209A1
公开(公告)日：2013-06-20
申请号：US13664615
申请日：2012-10-31
Applicant: QUALCOMM Incorporated
Inventor： Erick Visser , Michael Joseph Contour , Eric S. Mattis , Joseph Robert Fitzgerald , Kwokleung Chan
IPC: H04B3/20
CPC classification number: H04M9/082 , H04M1/0206 , H04M1/035 , H04M1/20 , H04R3/02 , H04R2499/11
Abstract: Mobile communication devices, having multiple speakers and/or microphones to perform a number of audio functions, for use with mobile devices, are provided. The microphones may be housed within the communication device housing. To compensate for the unwanted signal feedback between the speakers and microphones, acoustic echo cancellation may be implemented to determine the proper distance and relative location between the speakers and microphones. Acoustic echo cancellation removes the echo from voice communications to improve the quality of the sound. The removal of the unwanted signals captured by the microphones may be accomplished by characterizing the audio signal paths from the speakers to the microphones (speaker-to-microphone path distance profile), including the distance and relative location between the speakers and microphones. The optimal distance and relative location between the speakers and microphones is provided to the user to optimize performance.
Abstract translation: 提供具有用于执行多个音频功能的多个扬声器和/或麦克风以用于移动设备的移动通信设备。 麦克风可以容纳在通信设备外壳内。 为了补偿扬声器和麦克风之间的不需要的信号反馈，可以实现声学回声消除以确定扬声器和麦克风之间的适当距离和相对位置。 声回波消除消除语音通信中的回声，提高声音的质量。 可以通过表征从扬声器到麦克风（扬声器到麦克风路径距离分布）的音频信号路径，包括扬声器和麦克风之间的距离和相对位置来实现麦克风捕获的不想要的信号的去除。 扬声器和麦克风之间的最佳距离和相对位置被提供给用户以优化性能。
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公开(公告)号：US12243347B1
公开(公告)日：2025-03-04
申请号：US18545744
申请日：2023-12-19
Applicant: QUALCOMM Incorporated
Inventor： Kwokleung Chan , Raj Kumar , Jessica Liu Strohmann , Sandeep Louis D'Souza , Deepak Rajendra Karnik , Advait Prasad Koparkar , Hasib Siddiqui
Abstract: Some methods may involve receiving fingerprint image data and a first set of background image data from a fingerprint sensor and determining first processed fingerprint image data via a subtraction of the first set of background image data from the fingerprint image data. Some methods may involve obtaining force data corresponding to a force applied to the fingerprint sensor when the fingerprint image data were obtained. Some methods may involve obtaining a second set of background image data corresponding to the force data. Some methods may involve determining second processed fingerprint image data based, at least in part, on the first processed fingerprint image data and the second set of background image data, and outputting the second processed fingerprint image data. In some examples, determining the second processed fingerprint image data may involve a machine learning model. Some examples may involve estimating residual noise based on the force data.
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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
Applicant: QUALCOMM INCORPORATED
Inventor： 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 classification number: G06K9/0002 , G01S15/8952 , G06K9/00067 , G06K9/00114 , G06K9/6289
Abstract: 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.
Abstract translation: 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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5.发明授权Systems, methods, apparatus, and computer-readable media for adaptive active noise cancellation 有权用于自适应主动噪声消除的系统，方法，装置和计算机可读介质公开(公告)号：US09361872B2
公开(公告)日：2016-06-07
申请号：US14270096
申请日：2014-05-05
Applicant: QUALCOMM Incorporated
Inventor： Hyun Jin Park , Kwokleung Chan , Ren Li
IPC: G10K11/178 , G10K11/00
CPC classification number: G10K11/178 , G10K11/002 , G10K2210/108 , G10K2210/1081 , G10K2210/3028
Abstract: An adaptive active noise cancellation apparatus performs a filtering operation in a first digital domain and performs adaptation of the filtering operation in a second digital domain.
Abstract translation: 自适应有源噪声消除装置在第一数字域中执行滤波操作，并且在第二数字域中执行滤波操作的适配。
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Patent Agency Ranking
公开(公告)号：US20160070968A1
公开(公告)日：2016-03-10
申请号：US14845174
申请日：2015-09-03
Applicant: QUALCOMM Incorporated
Inventor： Jin Gu , Ming Yu Chen , Eliza Yingzi Du , Kwokleung Chan , Esra Vural , Saurav Bandyopadhyay
CPC classification number: G06K9/00906 , G06K9/0002 , G06K9/00093 , G06K9/001 , G06K9/00107 , G06K9/00114 , G06T7/32 , G06T7/337 , G06T7/344 , G06T7/44 , G06T2207/10132 , G06T2207/20064 , G06T2207/20072
Abstract: A liveness-detection method and/or system is disclosed. A method of detecting liveness can comprise obtaining a single ultrasonic image of a biometric object. The single ultrasonic image can be subdivided into a plurality of overlapping sample blocks. Feature vectors can be extracted in a spatial domain and a frequency domain from each of the plurality of sample blocks. The feature vectors can be compared from each of the plurality of sample blocks to a classification model.
Abstract translation: 公开了一种活性检测方法和/或系统。 检测活力的方法可以包括获得生物特征物体的单个超声波图像。 单个超声波图像可以被细分成多个重叠的样本块。 特征向量可以在多个样本块中的每一个的空间域和频域中提取。 特征向量可以从多个样本块中的每一个到分类模型进行比较。
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7.发明授权公开(公告)号：US11062689B2
公开(公告)日：2021-07-13
申请号：US16417335
申请日：2019-05-20
Applicant: QUALCOMM Incorporated
Inventor： Hyun Jin Park , Kwokleung Chan , Ren Li
IPC: G10K11/178 , G10K11/00
Abstract: An adaptive active noise cancellation apparatus performs a filtering operation in a first digital domain and performs adaptation of the filtering operation in a second digital domain.
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公开(公告)号：US09665763B2
公开(公告)日：2017-05-30
申请号：US14474164
申请日：2014-08-31
Applicant: QUALCOMM Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , Suryaprakash Ganti , John Keith Schneider , David William Burns
IPC: G06K9/00
CPC classification number: G06K9/0002 , G06K9/00013 , G06K9/00033 , G06K9/00067
Abstract: Some methods may involve determining whether an object is positioned on or near a portion of a fingerprint sensor system. If an object is positioned on or near the portion of the fingerprint sensor system, an acoustic impedance of at least a portion of the object may be determined. Based at least in part on the acoustic impedance, it may be determined whether the object is a finger.
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公开(公告)号：US09639765B2
公开(公告)日：2017-05-02
申请号：US14845149
申请日：2015-09-03
Applicant: QUALCOMM Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , David William Burns , Suryaprakash Ganti , John Keith Schneider , Saurav Bandyopadhyay , Jin Gu
CPC classification number: G06K9/00906 , G06K9/0002 , G06K9/00093 , G06K9/001 , G06K9/00107 , G06K9/00114 , G06T7/32 , G06T7/337 , G06T7/344 , G06T7/44 , G06T2207/10132 , G06T2207/20064 , G06T2207/20072
Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.
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公开(公告)号：US20160070967A1
公开(公告)日：2016-03-10
申请号：US14845149
申请日：2015-09-03
Applicant: QUALCOMM Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , David William Burns , Suryaprakash Ganti , John Keith Schneider , Saurav Bandyopadhyay , Jin Gu
CPC classification number: G06K9/00906 , G06K9/0002 , G06K9/00093 , G06K9/001 , G06K9/00107 , G06K9/00114 , G06T7/32 , G06T7/337 , G06T7/344 , G06T7/44 , G06T2207/10132 , G06T2207/20064 , G06T2207/20072
Abstract: A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.
Abstract translation: 描述了一种确定生物体对象是否是活体个体的一部分的方法。 在一种这样的方法中，通过使用诸如超声波传感器的传感器从生物体对象获取图像信息。 可以在至少两个分析阶段中分析图像信息。 分析阶段之一可以是时间分析阶段，其分析在生物测定对象连续可用于传感器的时间段期间获得的图像信息的变化。 例如，死亡/活跃阶段可以分析在两个不同时间拍摄的图像信息之间的差异，以便识别从一次到另一次的变化。 其他阶段可能侧重于特定图像信息集的方面，而不是设法评估随时间的变化。 这些其他阶段寻求确定图像信息集是否表现出与活体生物体对象相似的特征。
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