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公开(公告)号：US11816886B1
公开(公告)日：2023-11-14
申请号：US16021900
申请日：2018-06-28
Applicant: META PLATFORMS TECHNOLOGIES, LLC
Inventor： Richard Andrew Newcombe , Renzo De Nardi
CPC classification number: G06V20/20 , G01S3/8034 , G06V10/768 , G06V40/10 , G06F3/16 , G06T7/70 , H04R1/1008
Abstract: A system may include a wearable apparatus dimensioned to be worn by a user about an axial region of the user’s body such that, when the wearable apparatus is worn by the user, the user’s field of view into a local environment is substantially free of a view of the wearable apparatus. The system may also include a machine-perception subsystem that is coupled to the wearable apparatus and that gathers information about the local environment by observing the local environment. Additionally, the system may include an experience-analysis subsystem that infers, based on the information about the local environment and information about the user, contextual information about an experience of the user in the local environment. Furthermore, the system may include a non-visual communication subsystem that outputs the contextual information about the experience of the user. Various other apparatuses, systems, and methods are also disclosed.
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公开(公告)号：US09008686B2
公开(公告)日：2015-04-14
申请号：US13521427
申请日：2010-01-12
Applicant: Miska Hannuksela , Pasi Ojala
Inventor： Miska Hannuksela , Pasi Ojala
CPC classification number: G01S5/0072 , G01S3/8034 , G01S3/8083 , G01S5/186
Abstract: It is inter alia disclosed to estimate at least one of a location and an orientation of a first-type device (11) at least based on respective location estimates for one or more signal sources (10), wherein at least one location estimate for a signal source (10) of the one or more signal sources is determined at least based on respective signals from the signal source (10) received at one or more second-type devices (12) and respective locations of the one or more second-type devices (12), and respective position relationships between the one or more signal sources (10) and the first-type device (11).
Abstract translation: 至少基于对于一个或多个信号源（10）的相应位置估计来估计第一类型设备（11）的位置和取向中的至少一个至少其中之一，其中至少一个位置估计用于 至少基于在一个或多个第二类型设备（12）处接收的信号源（10）和一个或多个第二类型设备（12）的相应位置的相应信号来确定一个或多个信号源的信号源（10） 设备（12）以及一个或多个信号源（10）和第一类型设备（11）之间的相应位置关系。
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3.发明申请METHOD AND APPARATUS FOR INCREASING THE DIRECTION-FINDING ACCURACY OF A RECEIVER ARRANGEMENT 审中-公开提高接收方布置方向和方向准确度的方法和装置公开(公告)号：US20130286785A1
公开(公告)日：2013-10-31
申请号：US13996547
申请日：2011-12-23
Applicant: Frank Beckefeld , Klaus Renken
Inventor： Frank Beckefeld , Klaus Renken
IPC: G01S3/803
CPC classification number: G01S3/803 , G01S3/8034 , G01S3/8083
Abstract: A method for increasing a bearing accuracy of a receiver assembly includes providing a receiver assembly which receives sound waves to determine reception signals. The reception signals determine direction signals of a reception direction. Frequency lines of a frequency of a frequency range comprising an amplitude value are attributed to a reception direction based the direction signals. A directional function is formed for each frequency. Each directional function is transformed into a spectral range to obtain a first spectral function comprising first spectral function arguments. The first spectral function are filled with other spectral function arguments between middle spectral function arguments of the first spectral function arguments to obtain filled first spectral arguments. The other spectral function arguments have a respective value of zero or a range of zero. Each of the filled first spectral functions are transformed back from the spectral range to an interpolated first directional function.
Abstract translation: 一种用于增加接收器组件的轴承精度的方法包括提供接收声波以确定接收信号的接收器组件。 接收信号确定接收方向的方向信号。 包括幅度值的频率范围的频率的频率线被归因于基于方向信号的接收方向。 为每个频率形成定向功能。 每个方向函数被变换成光谱范围以获得包括第一光谱函数参数的第一光谱函数。 第一个光谱函数在第一个光谱函数参数的中间光谱函数参数之间填充其他光谱函数参数，以获得填充的第一个光谱参数。 其他光谱函数参数具有相应的零值或零的范围。 所填充的第一光谱函数中的每一个从光谱范围被转换回内插的第一定向函数。
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公开(公告)号：US20120308038A1
公开(公告)日：2012-12-06
申请号：US13469587
申请日：2012-05-11
Applicant: Zhiwei Shuang , David S. McGrath , Glenn N. Dickins
Inventor： Zhiwei Shuang , David S. McGrath , Glenn N. Dickins
IPC: H04R3/00
CPC classification number: G01S3/8034
Abstract: Sound source localization apparatuses and methods are described. A frame amplitude difference vector is calculated based on short time frame data acquired through an array of microphones. The frame amplitude difference vector reflects differences between amplitudes captured by microphones of the array during recording the short time frame data. Similarity between the frame amplitude difference vector and each of a plurality of reference frame amplitude difference vectors is evaluated. Each of the plurality of reference frame amplitude difference vectors reflects differences between amplitudes captured by microphones of the array during recording sound from one of a plurality of candidate locations. A desired location of sound source is estimated based at least on the candidate locations and associated similarity. The sound source localization can be performed based at least on amplitude difference.
Abstract translation: 描述声源定位装置和方法。 基于通过麦克风阵列获取的短时帧数据来计算帧幅度差矢量。 帧幅度差矢量反映在记录短时帧数据期间由阵列的麦克风捕获的幅度之间的差异。 评估帧幅度差矢量与多个参考帧幅度差矢量中的每一个之间的相似度。 多个参考帧幅度差矢量中的每一个在从多个候选位置之一记录声音期间反映阵列的麦克风捕获的幅度之间的差异。 至少基于候选位置和相关联的相似性来估计声源的期望位置。 可以至少基于幅度差进行声源定位。
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公开(公告)号：US20050276419A1
公开(公告)日：2005-12-15
申请号：US11137981
申请日：2005-05-25
Applicant: Julian Eggert , Volker Willert , Raphael Stahl , Juergen Adamy
Inventor： Julian Eggert , Volker Willert , Raphael Stahl , Juergen Adamy
CPC classification number: G01S3/8034 , G01S3/8083 , G10L2021/02166
Abstract: Techniques are disclosed for sound source localization based on joint learning and evaluation of ITD and ILD representations that are measured in a complementary, correlation-based way using binaural time-frequency spectrums. According to one embodiment, from these measurements and learned representatives, which may, for example, be created by combinations of measurements from signals belonging to the same class, i.e., the same azimuthal location, probability distributions over frequency and class are computed. These probability distributions can be combined over cue and frequency using information-theoretic approaches to get a robust classification of the location and additionally a confidence measure for the quality of the classification result.
Abstract translation: 公开了基于联合学习和评估ITD和ILD表示的声源定位的技术，其使用双耳时间频谱以互补的基于相关的方式测量。 根据一个实施例，根据这些测量和学习的代表，其可以例如通过来自属于相同类别的信号的测量的组合（即，相同的方位位置）来产生频率和类别上的概率分布。 这些概率分布可以使用信息理论方法在提示和频率上进行组合，以获得对位置的鲁棒分类，另外还可以对分类结果的质量进行置信度量度。
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Patent Agency Ranking
公开(公告)号：US06826117B2
公开(公告)日：2004-11-30
申请号：US10327718
申请日：2002-12-20
Applicant: Wayne C. Haase , Zachary S. Haase , Paul M. Chizinski , Malcolm S. MacGregor , Donald B. Bruck
Inventor： Wayne C. Haase , Zachary S. Haase , Paul M. Chizinski , Malcolm S. MacGregor , Donald B. Bruck
IPC: G01S380
CPC classification number: G01S3/8034 , G01S1/725 , G01S7/64 , G01S15/74
Abstract: An ultrasonic signal is used to link a beacon unit to a tracker unit to provide a tracking and navigation system for firefighters to use in a smoke filled environment at the scene of a fire. The beacon unit transmits an omnidirectional ultrasonic signal. The tracker unit, using a directional ultrasonic receiver provides a display or other indication of the signal strength of the received ultrasonic signal to allow the direction to the beacon unit to be determined. The ultrasonic signal provided by the beacon unit may be pulse modulated to include digitally encoded data that may be used to identify particular individuals, objects, materials, dangers, or exits. In addition, the tracker unit may be provided with a transmitter and the beacon unit provided with a receiver such that audio communication may be established therebetween.
Abstract translation: 使用超声波信号将信标单元链接到跟踪器单元以提供用于消防员在火灾现场的充满烟雾的环境中使用的跟踪和导航系统。 信标单元发送全向超声波信号。 使用定向超声波接收器的跟踪单元提供所接收的超声波信号的信号强度的显示或其它指示，以允许确定到信标单元的方向。 由信标单元提供的超声波信号可被脉冲调制以包括数字编码数据，该数字编码数据可用于识别特定个体，物体，材料，危险或出口。 此外，跟踪单元可以设置有发送器，并且设置有接收器的信标单元，使得可以在其间建立音频通信。
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公开(公告)号：US5831936A
公开(公告)日：1998-11-03
申请号：US914318
申请日：1997-08-18
Applicant: Gregory Zlotnick , Ehud Naheer
Inventor： Gregory Zlotnick , Ehud Naheer
CPC classification number: G01S3/801 , G01S3/803 , G01S3/8034
Abstract: A noise detection system is provided which includes a receiving unit, a processing unit and a user interface unit connected together. The receiving unit consists of a three-dimensional acoustical array for generally simultaneously receiving a multiplicity of sound signals from different directions. The sound signals have at least one sound source of interest. The processing unit processes the sound signals and consists of a three-dimensional spatial filter for identifying the elevation and azimuth of each of the sound signals, a sound database containing a multiplicity of soundprints of sound sources of interest, apparatus for classifying the sound signals with the soundprints, and apparatus for providing the azimuth and elevation of each of the classified sound signals. The user interface unit indicates to the user the azimuths and elevations of the classified sound signals. The processing unit further consists of filtering apparatus for filtering extraneous noise signals received by the acoustical array.
Abstract translation: 提供了一种噪声检测系统，其包括连接在一起的接收单元，处理单元和用户接口单元。 接收单元由用于大体上同时从不同方向接收多个声音信号的三维声阵组成。 声音信号至少有一个感兴趣的声源。 处理单元处理声音信号，并且由用于识别每个声音信号的高程和方位角的三维空间滤波器组成，声音数据库包含多个感兴趣的声源的声音印迹，用于对声音信号进行分类的设备 声纹和用于提供每个分类声音信号的方位角和仰角的装置。 用户接口单元向用户指示分类声音信号的方位角和高程。 处理单元还包括用于滤波由声阵列接收的外来噪声信号的滤波装置。
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公开(公告)号：US4532807A
公开(公告)日：1985-08-06
申请号：US537609
申请日：1983-09-30
Applicant: Naotaka Tomita , Toshiyuki Watanabe
Inventor： Naotaka Tomita , Toshiyuki Watanabe
CPC classification number: G01S3/8034 , G01H3/00 , G01M17/025
Abstract: In a method and an apparatus for detecting a sound source, a measurement plane to be observed is automatically scanned in two-dimensional manner by means of two microphones which are spaced apart from each other by a given distance and are moved by a traversing device. Outputs of these microphones are sampled for successive measurement regions and then are processed by processing circuit including a fast Fourier transform to derive acoustic intensities with respect to various frequencies in a given frequency range. Then, a distribution of the acoustic intensities is indicated on a display device by using various indication techniques. Therefore, since the measurement is effected by using the acoustic intensity representing both a sound power and a propagating direction, the analysis of the sound source can be performed in an easy and accurate manner, and an entier apparatus can be small in size and inexpensive in cost.
Abstract translation: 在用于检测声源的方法和装置中，将通过两个彼此间隔一定距离的麦克风以二维方式自动扫描要观察的测量平面，并通过横动装置移动。 这些麦克风的输出被采样用于连续的测量区域，然后由包括快速傅里叶变换的处理电路处理，以导出相对于给定频率范围内的各种频率的声强。 然后，通过使用各种指示技术在显示装置上指示声强的分布。 因此，由于通过使用表示声功率和传播方向的声强度来进行测量，所以可以容易且准确地进行声源的分析，并且可以小型化并且便宜 成本。
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公开(公告)号：US20160291117A1
公开(公告)日：2016-10-06
申请号：US13623824
申请日：2012-09-20
Applicant: Siew Kok Hui
Inventor： Siew Kok Hui
CPC classification number: G01S5/20 , G01S3/8034
Abstract: Systems and methods are presented for detecting a direction of an incoming projectile and determining a source location of the projectile. One or more resonant sensors (comprising a plate, piezo electric sensor, etc.) can be arranged, where shockwaves from the projectile (e.g., shockwaves from a bullet travelling at supersonic speeds) are incident upon the plate and cause the plate to resonate. The resonance causes an electrical signal to be generated by the piezo electric sensor (e.g., a piezo electric film sensor), the greater the degree of resonance in the plate, the higher the magnitude of signal generated by the piezo electric sensor. By comparing the magnitude of the piezo electric signals across the array of resonant sensors it is possible to determine a trajectory of the projectile and hence a location of the source of the projectile. Acoustic waves can also be generated by muzzle waves.
Abstract translation: 提出了系统和方法来检测入射射弹的方向并确定射弹的源位置。 可以布置一个或多个谐振传感器（包括板，压电传感器等），其中来自射弹的冲击波（例如，以超音速行进的子弹的冲击波）入射到板上并导致板谐振。 谐振导致由压电传感器（例如，压电薄膜传感器）产生电信号，板中的谐振程度越大，压电传感器产生的信号的幅度就越大。 通过比较谐振传感器阵列之间的压电信号的大小，可以确定射弹的轨迹，从而确定射弹源的位置。 声波也可以由枪口波产生。
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公开(公告)号：US09229086B2
公开(公告)日：2016-01-05
申请号：US13469587
申请日：2012-05-11
Applicant: Zhiwei Shuang , David S. McGrath , Glenn N. Dickins
Inventor： Zhiwei Shuang , David S. McGrath , Glenn N. Dickins
CPC classification number: G01S3/8034
Abstract: Sound source localization apparatuses and methods are described. A frame amplitude difference vector is calculated based on short time frame data acquired through an array of microphones. The frame amplitude difference vector reflects differences between amplitudes captured by microphones of the array during recording the short time frame data. Similarity between the frame amplitude difference vector and each of a plurality of reference frame amplitude difference vectors is evaluated. Each of the plurality of reference frame amplitude difference vectors reflects differences between amplitudes captured by microphones of the array during recording sound from one of a plurality of candidate locations. A desired location of sound source is estimated based at least on the candidate locations and associated similarity. The sound source localization can be performed based at least on amplitude difference.
Abstract translation: 描述声源定位装置和方法。 基于通过麦克风阵列获取的短时帧数据来计算帧幅度差矢量。 帧幅度差矢量反映在记录短时帧数据期间由阵列的麦克风捕获的幅度之间的差异。 评估帧幅度差矢量与多个参考帧幅度差矢量中的每一个之间的相似度。 多个参考帧幅度差矢量中的每一个在从多个候选位置之一记录声音期间反映阵列的麦克风捕获的幅度之间的差异。 至少基于候选位置和相关联的相似性来估计声源的期望位置。 可以至少基于幅度差进行声源定位。
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