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1. 发明申请

US20170200054A1 MULTI-STAGE LIVENESS DETERMINATION 有权
公开(公告)号：US20170200054A1
公开(公告)日：2017-07-13
申请号：US15472173
申请日：2017-03-28
申请人： QUALCOMM Incorporated
发明人： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , David William Burns , Suryaprakash Ganti , John Keith Schneider , Saurav Kumar Bandyopadhyay , Jin Gu
IPC分类号： G06K9/00
CPC分类号： 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
摘要： 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.

2. 发明申请

US20130156209A1 OPTIMIZING AUDIO PROCESSING FUNCTIONS BY DYNAMICALLY COMPENSATING FOR VARIABLE DISTANCES BETWEEN SPEAKER(S) AND MICROPHONE(S) IN A MOBILE DEVICE 有权
标题翻译：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
申请人： QUALCOMM Incorporated
发明人： Erick Visser , Michael Joseph Contour , Eric S. Mattis , Joseph Robert Fitzgerald , Kwokleung Chan
IPC分类号： H04B3/20
CPC分类号： H04M9/082 , H04M1/0206 , H04M1/035 , H04M1/20 , H04R3/02 , H04R2499/11
摘要： 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.
摘要翻译：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。

3. 发明申请

US20160350573A1 MULTI-SPECTRAL ULTRASONIC IMAGING 审中-公开
标题翻译：多光谱超声成像
公开(公告)号：US20160350573A1
公开(公告)日：2016-12-01
申请号：US15115058
申请日：2015-03-05
申请人： QUALCOMM INCORPORATED
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
IPC分类号： G06K9/00 , G06K9/62 , G01S15/89
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。

4. 发明授权

US09361872B2 Systems, methods, apparatus, and computer-readable media for adaptive active noise cancellation 有权
标题翻译：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
申请人： QUALCOMM Incorporated
发明人： Hyun Jin Park , Kwokleung Chan , Ren Li
IPC分类号： G10K11/178 , G10K11/00
CPC分类号： G10K11/178 , G10K11/002 , G10K2210/108 , G10K2210/1081 , G10K2210/3028
摘要： 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.
摘要翻译：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。

5. 发明申请

US20160070968A1 IMAGE-BASED LIVENESS DETECTION FOR ULTRASONIC FINGERPRINTS 有权
标题翻译：基于图像的超声手指检测
公开(公告)号：US20160070968A1
公开(公告)日：2016-03-10
申请号：US14845174
申请日：2015-09-03
申请人： QUALCOMM Incorporated
发明人： Jin Gu , Ming Yu Chen , Eliza Yingzi Du , Kwokleung Chan , Esra Vural , Saurav Bandyopadhyay
IPC分类号： G06K9/00 , G06T7/00 , G06T7/40
CPC分类号： 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
摘要： 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.
摘要翻译：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。

6. 发明授权

US11062689B2 Systems, methods, apparatus, and computer-readable media for adaptive active noise cancellation 有权
公开(公告)号：US11062689B2
公开(公告)日：2021-07-13
申请号：US16417335
申请日：2019-05-20
申请人： QUALCOMM Incorporated
发明人： Hyun Jin Park , Kwokleung Chan , Ren Li
IPC分类号： G10K11/178 , G10K11/00
摘要： 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.

7. 发明授权

US09665763B2 Finger/non-finger determination for biometric sensors 有权
公开(公告)号：US09665763B2
公开(公告)日：2017-05-30
申请号：US14474164
申请日：2014-08-31
申请人： QUALCOMM Incorporated
发明人： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , Suryaprakash Ganti , John Keith Schneider , David William Burns
IPC分类号： G06K9/00
CPC分类号： G06K9/0002 , G06K9/00013 , G06K9/00033 , G06K9/00067
摘要： 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.

8. 发明授权

US09639765B2 Multi-stage liveness determination 有权
公开(公告)号：US09639765B2
公开(公告)日：2017-05-02
申请号：US14845149
申请日：2015-09-03
申请人： QUALCOMM Incorporated
发明人： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , David William Burns , Suryaprakash Ganti , John Keith Schneider , Saurav Bandyopadhyay , Jin Gu
IPC分类号： G06K9/36 , G06K9/00 , G06T7/32 , G06T7/33 , G06T7/44
CPC分类号： 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
摘要： 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.

9. 发明申请

US20160070967A1 Multi-Stage Liveness Determination 有权
标题翻译：多阶段活力测定
公开(公告)号：US20160070967A1
公开(公告)日：2016-03-10
申请号：US14845149
申请日：2015-09-03
申请人： QUALCOMM Incorporated
发明人： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , David William Burns , Suryaprakash Ganti , John Keith Schneider , Saurav Bandyopadhyay , Jin Gu
IPC分类号： G06K9/00 , G06T7/40 , G06T7/00
CPC分类号： 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
摘要： 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.
摘要翻译：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。

10. 发明授权

US09129515B2 Ultrasound mesh localization for interactive systems 有权
标题翻译：交互式系统的超声网格定位
公开(公告)号：US09129515B2
公开(公告)日：2015-09-08
申请号：US13842295
申请日：2013-03-15
申请人： QUALCOMM Incorporated
发明人： Pei Xiang , Kwokleung Chan
IPC分类号： G08C23/02 , G01S3/80 , G08B23/00 , H04B7/00 , G01S3/803 , G01S5/24 , G01S5/30
CPC分类号： G08C23/02 , G01S3/803 , G01S5/24 , G01S5/30
摘要： In general, techniques are described for locating a user using an ultrasound mesh. The techniques may be performed by an interactive system comprising one or more processors. The processors may be configured to determine an amplitude of a first ultrasound signal emitted by one or more transducers and received by a microphone. This first ultrasound signal may be of a first frequency. The processors may then determine an amplitude of a second ultrasound signal emitted by the one or more transducers and received by the microphone. The second ultrasound signal may be of a second frequency different from the first frequency. The processors may be further configured to determine a location of the microphone relative to the one or more transducers based at least on the determined amplitude of the first ultrasound signal and the determined amplitude of the second ultrasound signal.
摘要翻译：通常，描述了使用超声波网格定位用户的技术。这些技术可以由包括一个或多个处理器的交互式系统来执行。处理器可以被配置为确定由一个或多个换能器发射并由麦克风接收的第一超声信号的幅度。该第一超声信号可以是第一频率。处理器然后可以确定由一个或多个换能器发射并由麦克风接收的第二超声信号的幅度。第二超声信号可以是与第一频率不同的第二频率。处理器还可以被配置为至少基于所确定的第一超声信号的幅度和确定的第二超声信号的幅度来确定麦克风相对于一个或多个换能器的位置。

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