System to determine direction toward user

    公开(公告)号:US11714157B2

    公开(公告)日:2023-08-01

    申请号:US17174941

    申请日:2021-02-12

    摘要: A device has a microphone array that acquires sound data and a camera that acquires image data. A portion of the device may be moveable by one or more actuators. Responsive to the user, the portion of the device is moved toward an estimated direction of the user. The estimated direction is based on sensor data including the sound data and the image data. First variance values for individual sound direction values are calculated. Data derived from the image data or data from other sensors may be used to modify the first variance values and determine second data comprising second variances. The second data may be processed to determine the estimated direction of the user. For example, the second data may be processed by both a forward and a backward Kalman filter, and the output combined to determine an estimated direction toward the user.

    SOUND SOURCE LOCALIZATION APPARATUS
    5.
    发明申请
    SOUND SOURCE LOCALIZATION APPARATUS 有权
    声源本地化设备

    公开(公告)号:US20170064441A1

    公开(公告)日:2017-03-02

    申请号:US15227341

    申请日:2016-08-03

    IPC分类号: H04R1/40 H04R1/08

    摘要: A sound source localization apparatus is provided which can more surely detect a sound source located in a detection target region. The sound source localization apparatus includes a plurality of microphone and a buffle. The buffle has a first surface and a second surface. The second surface is a surface opposite to the first surface. The plurality of microphones are two-dimensionally arrayed and fixed in the first surface. The buffle allows the plurality of microphones to pick up direct sound arriving at the first surface and prevents the plurality of microphones from picking up direct sound arriving at the second surface.

    摘要翻译: 提供一种可以更可靠地检测位于检测对象区域中的声源的声源定位装置。 声源定位装置包括多个麦克风和一个缓冲器。 抛光具有第一表面和第二表面。 第二表面是与第一表面相对的表面。 多个麦克风被二维排列并固定在第一表面中。 小腿允许多个麦克风拾取到达第一表面的直接声音,并且防止多个麦克风拾取到达第二表面的直接声音。

    GUN SHOT DIGITAL IMAGING SYSTEM
    6.
    发明申请
    GUN SHOT DIGITAL IMAGING SYSTEM 有权
    枪拍数字成像系统

    公开(公告)号:US20050088915A1

    公开(公告)日:2005-04-28

    申请号:US10704183

    申请日:2003-11-07

    IPC分类号: G01S3/80 G01S5/30

    CPC分类号: G01S3/8003 G01S5/30

    摘要: Disclosed is a method for recording one or more images of a source area where an impulse sound has initiated. The recording is performed by at least one of a plurality of units that include a camera, a computing device, and a connection to a network. The method comprises the steps of detecting and calculating a range and direction of the impulse sound source; slewing the camera to align its optical axis with a direction of the impulse sound; determining whether the impulse sound was a gunshot; recording images of the source area; and alerting a plurality of neighboring units to perform the recording step.

    摘要翻译: 公开了一种用于记录脉冲声音已经开始的源区域的一个或多个图像的方法。 记录由包括相机,计算设备和到网络的连接的多个单元中的至少一个来执行。 该方法包括检测和计算脉冲声源的范围和方向的步骤; 旋转相机以使其光轴与脉冲声音的方向对齐; 确定脉冲声是否是枪声; 记录源区图像; 并且提醒多个相邻单元执行记录步骤。

    Direction of arrival estimation
    7.
    发明授权

    公开(公告)号:US11782118B2

    公开(公告)日:2023-10-10

    申请号:US17509543

    申请日:2021-10-25

    摘要: Iterative methods for direction of arrival estimation of a signal at a receiver with a plurality of spatially separated sensor elements are described. A quantized estimate of the angle of arrival is obtained from a compressive sensing solution of a set of equations. The estimate is refined in a subsequent iteration by a computed error based a quantized estimate of the direction of arrival in relation to quantization points offset from the quantization points for the first quantized estimate of the angle of arrival. The iterations converge on an estimated direction of arrival.

    Orientation-Based Playback Device Microphone Selection

    公开(公告)号:US20230164503A1

    公开(公告)日:2023-05-25

    申请号:US17994577

    申请日:2022-11-28

    申请人: Sonos, Inc.

    IPC分类号: H04R29/00 H04R3/00 G01S3/803

    摘要: Aspects of a multi-orientation playback device including at least one microphone array are discussed. A method may include determining an orientation of the playback device which includes at least one microphone array and determining at least one microphone training response for the playback device from a plurality of microphone training responses based on the orientation of the playback device. The at least one microphone array can detect a sound input, and the location information of a source of the sound input can be determined based on the at least one microphone training response and the detected sound input. Based on the location information of the source, the directional focus of the at least one microphone array can be adjusted, and the sound input can be captured based on the adjusted directional focus.

    Gun shot digital imaging system
    9.
    发明授权
    Gun shot digital imaging system 有权
    枪射数字成像系统

    公开(公告)号:US06965541B2

    公开(公告)日:2005-11-15

    申请号:US10704183

    申请日:2003-11-07

    IPC分类号: G01S3/80 G01S5/30

    CPC分类号: G01S3/8003 G01S5/30

    摘要: Disclosed is a method for recording one or more images of a source area where an impulse sound has initiated. The recording is performed by at least one of a plurality of units that include a camera, a computing device, and a connection to a network. The method comprises the steps of detecting and calculating a range and direction of the impulse sound source; slewing the camera to align its optical axis with a direction of the impulse sound; determining whether the impulse sound was a gunshot; recording images of the source area; and alerting a plurality of neighboring units to perform the recording step.

    摘要翻译: 公开了一种用于记录脉冲声音已经开始的源区域的一个或多个图像的方法。 记录由包括相机,计算设备和到网络的连接的多个单元中的至少一个来执行。 该方法包括检测和计算脉冲声源的范围和方向的步骤; 旋转相机以使其光轴与脉冲声音的方向对齐; 确定脉冲声是否是枪声; 记录源区图像; 并且提醒多个相邻单元执行记录步骤。

    METHOD FOR PROVIDING SOUND DETECTION INFORMATION, APPARATUS DETECTING SOUND AROUND VEHICLE, AND VEHICLE INCLUDING THE SAME

    公开(公告)号:US20170259737A1

    公开(公告)日:2017-09-14

    申请号:US15367908

    申请日:2016-12-02

    IPC分类号: B60Q9/00 G01S3/808

    摘要: A method for providing sound tracking information includes detecting a sound occurred adjacent to a subject vehicle to generate a sound tracking result based at least on a sound data regarding detected sound; determining an angle of point having the maximum probability among at least one of peak points in the sound tracking result as a first vehicle angle; determining whether an angle of candidate point is a second vehicle angle, wherein the candidate point has the maximum probability among peak points included in a detection range except for the first vehicle angle; and generating at least one detection signal corresponding to the first and the second vehicle angles, when the angle of candidate point is the second vehicle angle, wherein the sound tracking result includes a probability of whether there is at least one another vehicle at each of angles in each of frames continued according to time.