公开(公告)号：US20160337748A1

公开(公告)日：2016-11-17

申请号：US15222296

申请日：2016-07-28

Applicant: Bose Corporation

Inventor： Bulent Goksel ,  Wontak Kim ,  Joseph Jankovsky

IPC: H04R1/34 ,  H04R1/28

CPC classification number: H04R1/345 ,  H04R1/2834 ,  H04R1/2896 ,  H04R2201/405

Abstract: An omni-directional acoustic deflector includes an acoustically reflective body that has a truncated conical shape which includes a substantially conical outer surface that is configured to be disposed adjacent an acoustically radiating surface (e.g., a diaphragm) of an acoustic driver thereby to define an acoustic radiation path therebetween. The acoustically reflective body is profiled such that a cross-sectional area of the acoustic radiation path increases monotonically with respect to radial distance from a motion axis of the acoustic driver.

Abstract translation: 全向声学偏转器包括具有截头圆锥形状的声反射体，其包括基本上圆锥形的外表面，该外表面被配置为邻近声学驱动器的声辐射表面（例如，隔膜）设置，从而限定声学 辐射路径。 声反射体被轮廓化，使得声辐射路径的横截面面积相对于声学驱动器的运动轴线的径向距离单调增加。

公开(公告)号：US09473841B2

公开(公告)日：2016-10-18

申请号：US14388280

申请日：2013-03-26

Applicant: University of Surrey

Inventor： David Nugent ,  Banu Gunel

IPC: H04R3/00 ,  H04R1/08 ,  H04R1/40 ,  H04R25/00 ,  H04R1/04

CPC classification number: H04R1/08 ,  H04M3/5125 ,  H04R1/04 ,  H04R1/406 ,  H04R3/005 ,  H04R25/405 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2430/00 ,  H04R2430/20

Abstract: A system for directionally selective sound reception comprises an array of pressure sensors each arranged to output a pressure signal indicative of pressure, and processing means arranged to receive the pressure signals, identify a plurality of frequency components of the signals, identify at least one source direction, and identify at least one of the components as coming from the source direction. The sensor array comprises support means having two opposite sides and four sensors, at least one of the sensors being supported on each of the sides of the support means.

Abstract translation: 用于定向选择性声音接收的系统包括一组压力传感器，每个压力传感器被布置成输出指示压力的压力信号，以及处理装置，被布置为接收压力信号，识别信号的多个频率分量，识别至少一个源方向 并且将至少一个组件识别为来自源方向。 传感器阵列包括具有两个相对侧和四个传感器的支撑装置，至少一个传感器被支撑在支撑装置的每个侧面上。

公开(公告)号：US09402117B2

公开(公告)日：2016-07-26

申请号：US13654225

申请日：2012-10-17

Applicant: James Keith McElveen

Inventor： James Keith McElveen

IPC: H04R3/00 ,  H04R1/02 ,  H04R1/10 ,  H04R25/00

CPC classification number: H04R1/02 ,  H04R1/1083 ,  H04R3/005 ,  H04R25/405 ,  H04R2201/023 ,  H04R2201/405 ,  H04R2430/23

Abstract: A wearable microphone array apparatus and system used as a directional audio system and as an assisted listening device. The present invention advances hearing aids and assisted listening devices to allow construction of a highly directional audio array that is wearable, natural sounding, and convenient to direct, as well as to provide directional cues to users who have partial or total loss of hearing in one or both ears. The advantages of the invention include simultaneously providing high gain, high directivity, high side lobe attenuation, and consistent beam width; providing significant beam forming at lower frequencies where substantial noises are present, particularly in noisy, reverberant environments; and allowing construction of a cost effective body-worn or body-carried directional audio device.

Abstract translation: 一种可穿戴式麦克风阵列装置和系统，用作定向音频系统和辅助聆听装置。 本发明促进了助听器和辅助听音装置，以便构建一种高度方向性的音频阵列，其具有穿戴性，自然发声性和便于直接的特性，以及向在一个或多个听觉部分或完全丧失听力的用户提供方向线索 或双耳。 本发明的优点包括同时提供高增益，高方向性，高旁瓣衰减和一致的波束宽度; 在较低频率处提供显着的波束形成，其中存在显着的噪声，特别是在噪声，混响环境中; 并允许建造具有成本效益的身体穿戴或身体携带的定向音频设备。

公开(公告)号：US09374652B2

公开(公告)日：2016-06-21

申请号：US14387171

申请日：2013-03-21

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Timothy J. Neal ,  Glenn N. Dickins

IPC: H04R29/00

CPC classification number: H04R29/004 ,  H04M3/568 ,  H04R29/006 ,  H04R2201/405

Abstract: A plurality of acoustic sensors in a non-anechoic environment are calibrated with the aim of removing manufacturing tolerances and degradation over time but preserving position-dependent differences between the sensors, The sensors are excited by an acoustic stimulus which has either time-dependent characteristics or finite duration. The calibration is to be based on diffuse-field excitation only, in which indirect propagation (including single or multiple reflections) dominate over any direct-path excitation. For this purpose, the calibration process considers only a non-initial portion of sensor outputs and/or of an impulse response derived there-from. Based on these data, a frequency-dependent magnitude response function is estimated and compared with a target response function, from which a calibration function is derived.

Abstract translation: 在非消声环境中的多个声学传感器被校准，目的是消除制造公差和时间上的劣化，但是保持传感器之间的位置相关差异。传感器被具有时间依赖特性的声学刺激激发，或者 持续时间有限。 校准仅基于扩散场激励，其中间接传播（包括单次或多次反射）在任何直接路径激励上占主导地位。 为此，校准过程仅考虑传感器输出的非初始部分和/或从其导出的脉冲响应。 基于这些数据，估计频率依赖的幅度响应函数并与目标响应函数进行比较，从该目标响应函数导出校准函数。

公开(公告)号：US20160150316A1

公开(公告)日：2016-05-26

申请号：US14897147

申请日：2013-06-11

Applicant: TOA CORPORATION

Inventor： Hiroshi KUBOTA ,  Tomohiro JONAN

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2203/12 ,  H04R2430/21 ,  H04R2430/23

Abstract: A microphone array includes an n microphone units (where n is an integer equal to or larger than three). A first one of the microphone units includes three microphones ((14-1 through 14-3)) arranged in line at equal intervals. An m-th microphone unit (where m is a positive integer expressed by 1

Abstract translation: 麦克风阵列包括n个麦克风单元（其中n是等于或大于3的整数）。 麦克风单元中的第一个包括以等间隔排成一行的三个麦克风（（14-1至14-3））。 第m个麦克风单元（其中m是由1

公开(公告)号：US09232310B2

公开(公告)日：2016-01-05

申请号：US13652167

申请日：2012-10-15

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Anu Hannele Huttunen ,  Jorma Juhani Mäkinen

IPC: H04R3/00 ,  H04R5/027

CPC classification number: H04R5/027 ,  H04R1/265 ,  H04R1/326 ,  H04R3/005 ,  H04R2201/405 ,  H04R2203/12 ,  H04R2430/03

Abstract: An apparatus for providing directional audio capture may include a processor and memory storing executable computer program code that cause the apparatus to at least perform operations including assigning at least one beam direction, among a plurality of beam directions, in which to direct directionality of an output signal of one or more microphones. The computer program code may further cause the apparatus to divide microphone signals of the microphones into selected frequency subbands wherein an analysis performed. The computer program code may further cause the apparatus to select at least one set of microphones of the apparatus for selected frequency subbands. The computer program code may further cause the apparatus to optimize the assigned at least one beam direction by adjusting a beamformer parameter(s) based on the selected set of microphones and at least one of the selected frequency subbands. Corresponding methods and computer program products are also provided.

Abstract translation: 一种用于提供定向音频捕获的装置可以包括处理器和存储器，其存储可执行的计算机程序代码，该程序代码使得该装置至少执行操作，包括在多个波束方向之间分配至少一个波束方向，以在其中指导输出的方向性 一个或多个麦克风的信号。 计算机程序代码还可以使设备将麦克风的麦克风信号分成所选择的频率子带，其中进行分析。 计算机程序代码还可以使设备选择用于所选频率子带的装置的至少一组麦克风。 计算机程序代码还可以使得设备通过基于所选择的麦克风组和所选择的频率子带中的至少一个来调整波束形成器参数来优化所分配的至少一个波束方向。 还提供了相应的方法和计算机程序产品。

公开(公告)号：US20150346338A1

公开(公告)日：2015-12-03

申请号：US14654416

申请日：2014-01-22

Applicant: FONDAZIONE ISTITUTO ITALIANO DI TECHNOLOGIA

Inventor： Marco Crocco ,  Andrea Trucco ,  Vittorio Murino

IPC: G01S15/89 ,  G10K11/34

CPC classification number: G01S15/89 ,  G10K11/341 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/401 ,  H04R2201/405

Abstract: A method of configuring planar transducer arrays for broadband signal processing by 3D beamforming, wherein a superdirective beamforming technique for low-frequency signal components is combined with a sparse and aperiodic array pattern for high-frequency components in a predetermined frequency range, and wherein the positions of the individual transducers at the aperture of the array and the FIR filter coefficients are further optimized in parallel, by a hybrid iterative process including an analytical calculus for determining the FIR filter coefficients and a stochastic calculus for determining the transducer positions at the aperture of the planar transducer arrays, by minimization of a cost function.

Abstract translation: 一种用于通过3D波束形成配置用于宽带信号处理的平面换能器阵列的方法，其中用于低频信号分量的超向量波束成形技术与用于预定频率范围内的高频分量的稀疏和非周期阵列图案组合，并且其中， 通过包括用于确定FIR滤波器系数的分析演算法和用于确定FIR滤波器系数的孔径处的换能器位置的随机微积分的混合迭代过程来进一步平行地优化阵列孔径处的各个换能器和FIR滤波器系数 平面换能器阵列，通过最小化成本函数。

公开(公告)号：US09143879B2

公开(公告)日：2015-09-22

申请号：US13654135

申请日：2012-10-17

Applicant: James Keith McElveen

Inventor： James Keith McElveen

IPC: H04R3/00 ,  H04S3/00

CPC classification number: H04S3/002 ,  H04R1/406 ,  H04R2201/401 ,  H04R2201/405

Abstract: A directional transducer array system comprising a plurality of transducers with mathematical sequence spacing mounted on an array tile or host device. In an embodiment, the invention allows the construction of a receiving or transmitting, tiled (modular) directional audio array while simultaneously retaining desirable directional characteristics, improving gain, and limiting negative impacts on side lobe attenuation as the array is scaled (i.e. identical or similar tiles are added to or subtracted from the array); and allows the construction of a receiving or transmitting directional audio array that is light weight and robust enough to be used in body-worn, body-carried, vehicular, and fixed installations.

Abstract translation: 一种定向传感器阵列系统，包括安装在阵列瓦片或主机设备上的具有数学序列间隔的多个换能器。 在一个实施例中，本发明允许构造接收或传输的平铺（模块化）定向音频阵列，同时保持期望的方向特性，改善增益，并且限制对阵列缩放（即相同或相似的）的旁瓣衰减的负面影响 瓷砖加入或从数组中减去）; 并且允许构造重量轻且足够坚固的接收或发送定向音频阵列以用于身体穿戴，车身，车辆和固定设备中。

公开(公告)号：US09031256B2

公开(公告)日：2015-05-12

申请号：US13280211

申请日：2011-10-24

Applicant: Erik Visser ,  Ian Ernan Liu ,  Dinesh Ramakrishnan ,  Lae-Hoon Kim ,  Pei Xiang

Inventor： Erik Visser ,  Ian Ernan Liu ,  Dinesh Ramakrishnan ,  Lae-Hoon Kim ,  Pei Xiang

IPC: H04R3/00 ,  H04R1/02 ,  H04R9/06 ,  H04S7/00

CPC classification number: H04R3/005 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/21 ,  H04R2430/23 ,  H04S7/303 ,  H04S2400/15

Abstract: A method of orientation-sensitive recording control includes indicating, within a portable device and at a first time, that the portable device has a first orientation relative to a gravitational axis and, based on the indication, selecting a first pair among at least three microphone channels of the portable device. This method also includes indicating, within the portable device and at a second time that is different than the first time, that the portable device has a second orientation relative to the gravitational axis that is different than the first orientation and, based on the indication, selecting a second pair among the at least three microphone channels that is different than the first pair. In this method, each the at least three microphone channels is based on a signal produced by a corresponding one of at least three microphones of the portable device.

Abstract translation: 方向敏感记录控制的方法包括在便携式设备内并且在第一时间指示便携式设备相对于重力轴具有第一取向，并且基于该指示，在至少三个麦克风中选择第一对 便携式设备的通道。 该方法还包括在便携式设备内并且在与第一次不同的第二时间指示便携式设备相对于不同于第一方位的重力轴具有第二定向，并且基于该指示， 在所述至少三个麦克风通​​道中选择与所述第一对不同的第二对。 在该方法中，每个至少三个麦克风通​​道基于由便携式设备的至少三个麦克风中的对应的一个产生的信号。

公开(公告)号：US20150086039A1

公开(公告)日：2015-03-26

申请号：US14561433

申请日：2014-12-05

Applicant: James Keith McElveen

Inventor： James Keith McElveen

IPC: H04R1/02 ,  H04R3/00

CPC classification number: H04R1/02 ,  H04R1/1083 ,  H04R3/005 ,  H04R25/405 ,  H04R2201/023 ,  H04R2201/405 ,  H04R2430/23

Abstract: A wearable microphone array apparatus and system used as a directional audio system and as an assisted listening device. The present invention advances hearing aids and assisted listening devices to allow construction of a highly directional audio array that is wearable, natural sounding, and convenient to direct, as well as to provide directional cues to users who have partial or total loss of hearing in one or both ears. The advantages of the invention include simultaneously providing high gain, high directivity, high side lobe attenuation, and consistent beam width; providing significant beam forming at lower frequencies where substantial noises are present, particularly in noisy, reverberant environments; and allowing construction of a cost effective body-worn or body-carried directional audio device.

Abstract translation: 一种可穿戴式麦克风阵列装置和系统，用作定向音频系统和辅助聆听装置。 本发明促进了助听器和辅助听音装置，以便构建一种高度方向性的音频阵列，其具有穿戴性，自然发声性和便于直接的特性，以及向在一个或多个听觉部分或完全丧失听力的用户提供方向线索 或双耳。 本发明的优点包括同时提供高增益，高方向性，高旁瓣衰减和一致的波束宽度; 在较低频率处提供显着的波束形成，其中存在显着的噪声，特别是在噪声，混响环境中; 并允许建造具有成本效益的身体穿戴或身体携带的定向音频设备。