Device positioning using acoustic and radio signals

    公开(公告)号:US09689958B1

    公开(公告)日:2017-06-27

    申请号:US14201897

    申请日:2014-03-09

    Abstract: The present technology may be directed a system for determining an angle and distance between a positioning node and secondary device using a plurality of acoustic transmitters to transmit acoustic ranging signals that are modulated using ranging sequences, respectively. The system includes an acoustic receiver to detect the acoustic ranging signals, and a signal processor to calculate times of arrival and a plurality of aliased angles of arrival of the acoustic ranging signals. An anti-aliasing module may select an angle of arrival from the calculated plurality of aliased angles using the times of arrival of the acoustic ranging signals. A time of flight may be calculated from a comparison of times of arrival for radio signals and the acoustic signals. The time of flight may be used to calculate the distance between the positioning node and secondary device.

    Acoustic aircraft tracker and warning system

    公开(公告)号:US09632171B1

    公开(公告)日:2017-04-25

    申请号:US14794017

    申请日:2015-07-08

    Inventor: David Herold

    CPC classification number: G01S5/20 G01S3/801 G01S3/8055 G01S5/18 G01S5/28

    Abstract: A system and method for tracking aircraft, helicopters and/or other objects at an airfield using acoustics of the aircraft, helicopters and/or other objects. A method receives first acoustical data at a first sensor and second acoustical data is also received at a second sensor. The first and second sensors may be carried by a first structurally supportive body member. Based at least in part on the first acoustical data and the second acoustical data a range and a bearing of the aircraft is determined from a predetermined location at the airfield. The range and bearing can be determined by using a beam forming algorithm. Based on the range and the bearing, the method displays the location the aircraft on a display.

    SONAR SYSTEM AND METHOD USING ARRAYS OF OPTICAL RING RESONATOR SENSORS
    4.
    发明申请
    SONAR SYSTEM AND METHOD USING ARRAYS OF OPTICAL RING RESONATOR SENSORS 有权
    声光系统和使用光环谐振器传感器阵列的方法

    公开(公告)号:US20160273943A1

    公开(公告)日:2016-09-22

    申请号:US14663230

    申请日:2015-03-19

    Inventor: Brian C. Grubel

    Abstract: An optical ring resonator sensor array module for a passive SONAR system. The module includes a supporting structure; a silicon substrate mounted on the supporting structure, and a top plate mounted over the silicon structure. The silicon substrate includes an optical waveguide having an input and an output and a plurality of optical ring resonators distributed across the silicon substrate to form a two-dimensional pattern. Each optical ring resonator is positioned adjacent to the optical waveguide and each has a different predetermined diameter. The top plate includes a plurality of diaphragms, one for each of the plurality of optical ring resonators. The diaphragms are distributed on the top plate such that each of the plurality of diaphragms is positioned over an associated one of the plurality of optical ring resonators. In addition, each of the diaphragms is configured to flex in response to externally applied acoustical pressure.

    Abstract translation: 一种用于无源SONAR系统的光环谐振器传感器阵列模块。 该模块包括支撑结构; 安装在支撑结构上的硅基板和安装在硅结构上的顶板。 硅衬底包括具有输入和输出的光波导和分布在硅衬底上以形成二维图案的多个光环谐振器。 每个光环谐振器定位成与光波导相邻,并且每个具有不同的预定直径。 顶板包括多个隔膜,一个用于多个光环谐振器中的每一个。 隔膜分布在顶板上,使得多个隔膜中的每一个都位于多个光环谐振器中相关联的一个上。 此外,每个隔膜被构造成响应于外部施加的声压而弯曲。

    Methods and apparatus to determine locations of audience members
    7.
    发明授权
    Methods and apparatus to determine locations of audience members 有权
    确定观众成员位置的方法和设备

    公开(公告)号:US09258607B2

    公开(公告)日:2016-02-09

    申请号:US14500443

    申请日:2014-09-29

    Inventor: Jie Chen

    CPC classification number: H04N21/44218 G01S3/801 H04R3/005 H04R2430/21

    Abstract: A disclosed example method involves determining, using a neural network at a stationary unit, a first distance of a first portable audio detector from the stationary unit, the first portable audio detector associated with a first panelist, the stationary unit located in proximity to the media presentation device. The example method also involves determining, using the neural network, a second distance of a second portable audio detector from the stationary unit, the second portable audio detector associated with a second panelist. In response to the first distance being less than a threshold distance, the media is credited as exposed to the first panelist. In response to the second distance being more than the threshold distance, the media is not credited as exposed to the second panelist.

    Abstract translation: 所公开的示例性方法包括确定在固定单元处使用第一便携式音频检测器与固定单元的第一距离的第一便携式音频检测器,与第一小组成员关联的第一便携式音频检测器,位于媒体附近的固定单元 演示设备。 示例性方法还涉及使用神经网络确定第二便携式音频检测器与固定单元的第二距离,第二便携式音频检测器与第二小组成员相关联。 响应于第一距离小于阈值距离,媒体被认为暴露于第一名小组成员。 响应于第二距离大于阈值距离,媒体不被认为暴露于第二小组成员。

    HIGH FREQUENCY ACOUSTIC SPECTRUM IMAGING METHOD AND DEVICE
    8.
    发明申请
    HIGH FREQUENCY ACOUSTIC SPECTRUM IMAGING METHOD AND DEVICE 有权
    高频声谱成像方法和装置

    公开(公告)号:US20160018519A1

    公开(公告)日:2016-01-21

    申请号:US14803174

    申请日:2015-07-20

    Inventor: BASTIAAN BRAND

    Abstract: A method and a device for high frequency acoustic spectrum imaging for an object over a field of view. A camera captures an image of the object. A raster with grids is created as an overlay on the captured image. A directional microphone detects high frequency acoustic waves emanating from the object. An acoustic data signal corresponding to the high frequency acoustic waves is generated by a microphone data processing unit. The coordinates of the focal point of the directional microphone on the grid of the raster is recorded and sent as a real-time feedback position signal to a processor for each measurement of the acoustic signal data. The processor plots a visual representation of the acoustic signal data mapping it to the corresponding coordinates on the raster and creates a high frequency acoustic spectrum image for the object by superimposing the raster on the captured image.

    Abstract translation: 一种用于视场中的对象的高频声谱成像的方法和装置。 相机拍摄对象的图像。 栅格栅格创建为捕获图像上的叠加层。 定向麦克风检测从物体发出的高频声波。 与高频声波相对应的声学数据信号由麦克风数据处理单元产生。 记录栅格栅格上的定向麦克风的焦点坐标,并将其作为实时反馈位置信号发送到处理器,以进行声信号数据的每次测量。 处理器绘制将其映射到光栅上的对应坐标的声信号数据的视觉表示,并通过将光栅叠加在捕获的图像上来为对象创建高频声谱图像。

    Orientation of an ultrasonic signal
    9.
    发明授权
    Orientation of an ultrasonic signal 有权
    超声信号的方位

    公开(公告)号:US09013960B2

    公开(公告)日:2015-04-21

    申请号:US13452369

    申请日:2012-04-20

    CPC classification number: G01S15/00 G01S3/801 G10K11/346

    Abstract: A system and method for orientation of an ultrasonic signal includes at least two emitters in a mobile device that includes an orientation sensor that can determine a device orientation. A receiver at a fixed, known point includes at least two microphones operable to receive an ultrasonic signal from the device. The mobile device can drive the emitters to produce an ultrasonic signal that is oriented towards the receiver. A location engine can establish a location of the mobile device using the time delay of arrival of an ultrasonic burst from the mobile device impinging on each microphone of the receiver. In response to the location and/or the orientation, the mobile device operable to drive the emitters to produce a signal that is oriented towards the receiver.

    Abstract translation: 用于定向超声波信号的系统和方法包括移动设备中的至少两个发射器,其包括能够确定设备取向的定向传感器。 在固定的已知点处的接收机包括至少两个可操作以从设备接收超声波信号的麦克风。 移动设备可以驱动发射器产生面向接收器的超声波信号。 位置引擎可以使用入射到接收机的每个麦克风上的来自移动设备的超声波脉冲串的到达时间来建立移动设备的位置。 响应于位置和/或方位,移动装置可操作以驱动发射器产生面向接收器的信号。

    Highly directive array aperture
    10.
    发明授权
    Highly directive array aperture 有权
    高度指向阵列孔径

    公开(公告)号:US08873340B1

    公开(公告)日:2014-10-28

    申请号:US13765883

    申请日:2013-02-13

    Inventor: Benjamin A. Cray

    CPC classification number: G01S3/802 G01S3/801 G01S3/8083 H04R1/44

    Abstract: An apparatus and method is provided that utilizes sonar array discontinuities for increasing the directivity gain of a sonar system by increasing the ratio of trace wavelengths (replicated) to the length of a fixed array aperture. Impedance discontinuities, or blocking masses, are embedded in a matrix material of fixed length to create Bragg scattered longitudinal displacements of a wavelength. The longitudinal displacements are induced by an incident acoustic plane wave. This creates longitudinal replicas of the displacements, shifted in wave number, creating a scaled acoustic trace wavelength. The replicated trace wavelength is sampled and resolved, thereby increasing the directivity gain of a sonar system.

    Abstract translation: 提供了一种利用声纳阵列不连续性来增加声纳系统的方向性增益的装置和方法,其通过增加轨迹波长(复制)与固定阵列孔径的长度的比率。 阻抗不连续性或阻塞质量嵌入在固定长度的矩阵材料中,以产生波长的布拉格散射纵向位移。 纵向位移是由入射的声波平面波引起的。 这产生位移的纵向副本,以波数移动,产生缩放的声迹波长。 复制的迹线波长被采样和解析,从而增加声纳系统的方向性增益。

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