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公开(公告)号：US20140269212A1
公开(公告)日：2014-09-18
申请号：US13842295
申请日：2013-03-15
Applicant: QUALCOMM INCORPORATED
Inventor： Pei Xiang , Kwokleung Chan
IPC: G08C23/02
Abstract: 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.
Abstract translation: 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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22.发明授权公开(公告)号：US10347233B2
公开(公告)日：2019-07-09
申请号：US15493936
申请日：2017-04-21
Applicant: QUALCOMM Incorporated
Inventor： Hyun Jin Park , Kwokleung Chan , Ren Li
IPC: G10K11/16 , 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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Patent Agency Ranking
公开(公告)号：US09953233B2
公开(公告)日：2018-04-24
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 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：US09911184B2
公开(公告)日：2018-03-06
申请号：US14928898
申请日：2015-10-30
Applicant: Qualcomm Incorporated
Inventor： Eliza Yingzi Du , Ming Yu Chen , Esra Vural , Kwokleung Chan , Suryaprakash Ganti , John Keith Schneider , David William Burns
CPC classification number: G06T5/20 , G06K9/0002 , G06K9/00067 , G06K9/00926
Abstract: A fingerprint sensing apparatus may include a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may be capable of determining fingerprint sensor data blocks for at least a portion of the fingerprint sensor data and of calculating statistical variance values for fingerprint sensor data corresponding to each of the fingerprint sensor data blocks. The control system may be capable of determining, based at least in part the statistical variance values, whether an object is positioned proximate a portion of the fingerprint sensor system.
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公开(公告)号：US09654609B2
公开(公告)日：2017-05-16
申请号：US13664639
申请日：2012-10-31
Applicant: QUALCOMM Incorporated
Inventor： Erik Visser , Michael Joseph Contour , Eric S. Mattis , Joseph Robert Fitzgerald , Kwokleung Chan
CPC classification number: H04B7/26 , H03G3/20 , H04M1/0206 , H04M1/035 , H04M1/20 , H04M9/082 , H04R3/02 , H04R2201/401 , H04R2499/11
Abstract: An accessory device having multiple speakers and/or microphones to perform a number of audio functions, for use with mobile devices, are provided. The audio transducers (e.g., microphones and/or speakers) may be housed in one or more extendable and/or rotationally adjustable arms. 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.
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公开(公告)号：US09582705B2
公开(公告)日：2017-02-28
申请号：US14474160
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: G06K9/00033 , G06K9/00013 , G06K9/00067 , G06K9/00087 , G06K9/0012
Abstract: A fingerprint sensing apparatus includes a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may determine, according to the fingerprint sensor data, whether an object is positioned proximate a portion of the fingerprint sensor system. If the control system determines that an object is positioned proximate the portion of the fingerprint sensor system, the control system may determine whether the object is a finger or a non-finger object. The control system may determine whether the fingerprint sensor data includes fingerprint image information of at least an image quality threshold.
Abstract translation: 指纹感测装置包括指纹传感器系统和能够从指纹传感器系统接收指纹传感器数据的控制系统。 控制系统可以根据指纹传感器数据确定物体是否位于指纹传感器系统的一部分附近。 如果控制系统确定对象位于指纹传感器系统的部分附近，则控制系统可以确定对象是手指还是非手指对象。 控制系统可以确定指纹传感器数据是否包括至少图像质量阈值的指纹图像信息。
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公开(公告)号：US09195879B1
公开(公告)日：2015-11-24
申请号：US14474163
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: G06T5/20 , G06K9/0002 , G06K9/00067 , G06K9/00926
Abstract: A fingerprint sensing apparatus may include a fingerprint sensor system and a control system capable of receiving fingerprint sensor data from the fingerprint sensor system. The control system may be capable of determining fingerprint sensor data blocks for at least a portion of the fingerprint sensor data and of calculating statistical variance values for fingerprint sensor data corresponding to each of the fingerprint sensor data blocks. The control system may be capable of determining, based at least in part the statistical variance values, whether an object is positioned proximate a portion of the fingerprint sensor system.
Abstract translation: 指纹感测装置可以包括指纹传感器系统和能够从指纹传感器系统接收指纹传感器数据的控制系统。 控制系统可以能够为指纹传感器数据的至少一部分确定指纹传感器数据块，并且可以计算对应于每个指纹传感器数据块的指纹传感器数据的统计方差值。 控制系统可以能够至少部分地基于统计方差值来确定物体是否位于指纹传感器系统的一部分附近。
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