公开(公告)号：US08767993B2

公开(公告)日：2014-07-01

申请号：US12742277

申请日：2008-11-10

Applicant: Gernot Kubin ,  Marián Képesi ,  Michael Stark

Inventor： Gernot Kubin ,  Marián Képesi ,  Michael Stark

IPC: H04R1/20 ,  H04R9/08 ,  H04R11/04 ,  H04R17/02 ,  H04R19/04 ,  H04R21/02

CPC classification number: H04R1/406 ,  H04R1/42 ,  H04R25/405 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/21

Abstract: A sensor system is located in an environment composed of a first medium, where waves propagate with a first phase velocity, the sensor system including at least one main enclosure and a sensor array with at least two sensors, said sensor array being arranged inside the main enclosure, wherein the space inside the main enclosure between the sensor array and the inner surface of the main enclosure is filled with a second medium, in which waves propagate with a second phase velocity, the second phase velocity being different from the first velocity.

Abstract translation: 传感器系统位于由第一介质组成的环境中，其中波以第一相速度传播，传感器系统包括至少一个主外壳和具有至少两个传感器的传感器阵列，所述传感器阵列布置在主体内 其中所述主外壳内的所述主外壳内的空间在所述传感器阵列和所述主机壳的内表面之间填充有第二介质，其中波以第二相速度传播，所述第二相速度与所述第一速度不同。

公开(公告)号：US08472640B2

公开(公告)日：2013-06-25

申请号：US12645701

申请日：2009-12-23

Applicant: Trygve Frederik Marton

Inventor： Trygve Frederik Marton

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04M3/56 ,  H04R1/406 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/03 ,  H04R2430/20

Abstract: A video teleconferencing directional microphone includes three microphone elements arranged coincidentally on a vertical axis. The three microphone elements are placed on a supporting surface so that a first microphone element is on the surface, and the second and third microphone elements are elevated above the supporting surface. The directional microphone also includes three filters, a summing node, and an equalizer, which are used to shape the directivity pattern of the directional microphone into an elevated toroid sensitivity pattern. The elevated toroid sensitivity pattern increases sensitivity in the direction of a sound source of interest, but reduces sensitivity to any sound waves generated by noise sources at other locations.

Abstract translation: 视频电话会议定向麦克风包括三个麦克风元件，它们在垂直轴上巧妙地布置。 三个麦克风元件被放置在支撑表面上，使得第一麦克风元件在表面上，并且第二和第三麦克风元件在支撑表面上方升高。 定向麦克风还包括三个滤波器，一个求和节点和一个均衡器，用于将定向麦克风的方向性图案形成升高的环形灵敏度模式。 升高的环形灵敏度图案增加了感兴趣的声源的方向的灵敏度，但降低了对在其他位置处的噪声源产生的任何声波的敏感度。

公开(公告)号：US08176789B1

公开(公告)日：2012-05-15

申请号：US13199704

申请日：2011-09-07

Applicant: Robert Hickling

Inventor： Robert Hickling

IPC: G01C3/08

CPC classification number: H04R3/005 ,  H04R2201/405 ,  H04R2420/09 ,  H04S7/40

Abstract: Method and apparatus for measuring sound intensity emitted by a vibrating surface (10). The apparatus includes a probe (25) with three miniature microphones in the side-by-side arrangement, attached to a straight supporting tube (23). The three microphones are matched in phase and amplitude and form a geometric straight line. The supporting tube (23) with the geometric straight line of microphones is positioned perpendicularly close to the vibrating surface (10). The geometric straight line of microphones can be extended to intersect the vibrating surface at the measurement point (30). The microphones are supported at the ends of narrow tubes (22) attached perpendicularly to the supporting tube (23). The tubes contain wires from the microphones that are collected inside the supporting tube (23) and connected to the instrumentation (100). The sign of computed sound-intensity spectra and sound intensity indicates the direction of sound-intensity flow at the vibrating surface.

Abstract translation: 用于测量由振动表面（10）发出的声音强度的方法和装置。 该装置包括具有并排布置的三个微型麦克风的探针（25），附接到直的支撑管（23）。 三个麦克风在相位和幅度上匹配，形成几何直线。 具有麦克风的几何直线的支撑管（23）垂直于振动表面（10）定位。 麦克风的几何直线可以在测量点（30）延伸以与振动表面相交。 麦克风支撑在垂直于支撑管（23）安装的窄管（22）的端部。 管子包含麦克风的电线，收集在支撑管（23）内并连接到仪器（100）上。 计算声强光谱和声强的符号表示振动表面声强流动的方向。

公开(公告)号：US20120093338A1

公开(公告)日：2012-04-19

申请号：US13205322

申请日：2011-08-08

Applicant: Avram LEVI ,  Heinz Teutsch

Inventor： Avram LEVI ,  Heinz Teutsch

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/23

Abstract: Disclosed herein are systems, methods, and non-transitory computer-readable storage media for suppressing spatial noise based on phase information. The method transforms audio signals to frequency-domain data and identifies time-frequency points that have a parameter (e.g., signal-to-noise ratio) above a threshold. Based on these points, unwanted signals can be attenuated the desired audio source can be isolated. The method can work on a microphone array that includes two microphones or more.

Abstract translation: 本文公开了基于相位信息来抑制空间噪声的系统，方法和非暂时计算机可读存储介质。 该方法将音频信号转换为频域数据，并识别具有高于阈值的参数（例如，信噪比）的时间点。 基于这些要点，可以衰减不想要的信号，可以隔离所需的音频源。 该方法可以在包含两个麦克风或更多麦克风的麦克风阵列上工作。

公开(公告)号：US20100166219A1

公开(公告)日：2010-07-01

申请号：US12645701

申请日：2009-12-23

Applicant: Trygve Frederik MARTON

Inventor： Trygve Frederik MARTON

IPC: H03G5/00 ,  H04R9/08

CPC classification number: H04R3/005 ,  H04M3/56 ,  H04R1/406 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/03 ,  H04R2430/20

Abstract: A video teleconferencing directional microphone includes three microphone elements arranged coincidentally on a vertical axis. The three microphone elements are placed on a supporting surface so that a first microphone element is on the surface, and the second and third microphone elements are elevated above the supporting surface. The directional microphone also includes three filters, a summing node, and an equalizer, which are used to shape the directivity pattern of the directional microphone into an elevated toroid sensitivity pattern. The elevated toroid sensitivity pattern increases sensitivity in the direction of a sound source of interest, but reduces sensitivity to any sound waves generated by noise sources at other locations.

Abstract translation: 视频电话会议定向麦克风包括三个麦克风元件，它们在垂直轴上巧妙地布置。 三个麦克风元件被放置在支撑表面上，使得第一麦克风元件在表面上，并且第二和第三麦克风元件在支撑表面上方升高。 定向麦克风还包括三个滤波器，一个求和节点和一个均衡器，用于将定向麦克风的方向性图案形成升高的环形灵敏度模式。 升高的环形灵敏度图案增加了感兴趣的声源的方向的灵敏度，但降低了对在其他位置处的噪声源产生的任何声波的灵敏度。

公开(公告)号：US20080260178A1

公开(公告)日：2008-10-23

申请号：US12108593

申请日：2008-04-24

Applicant: Ryo Tanaka

Inventor： Ryo Tanaka

IPC: H04R1/00

CPC classification number: H04R1/403 ,  H04R1/406 ,  H04R2201/403 ,  H04R2201/405

Abstract: An audio signal transmission/reception device includes a speaker array having a plurality of linearly arranged speaker units and a microphone apparatus having a microphone array having a plurality of linearly arranged microphone units. Some of the microphone units are aligned with equal spacing corresponding to a prescribed distance therebetween in a high-density alignment section, which is set symmetrical to an alignment origin corresponding to a center point of linear alignment. The remaining microphone units are aligned in a low-density alignment section externally of the high-density alignment section in such a way that the spacing therebetween is progressively widened integer times larger than the prescribed distance. Manufacturing costs can be reduced by reducing the total number of the microphone units, and it is possible to improve sound reception directivity with respect to both high and low frequency bands.

Abstract translation: 音频信号发送/接收装置包括具有多个线性排列的扬声器单元的扬声器阵列和具有多个线性排列麦克风单元的麦克风阵列的麦克风装置。 一些麦克风单元在对应于与对应于线性对准中心点的对准原点对称的高密度对准部分中对应于其间的规定距离的相等间隔对准。 剩余的麦克风单元在高密度校准部分外部的低密度校准部分中对准，使得它们之间的间隔逐渐加宽到大于规定距离的整数倍。 可以通过减少麦克风单元的总数来减少制造成本，并且可以提高相对于高频带和低频带的声音接收方向性。

公开(公告)号：US20070263894A1

公开(公告)日：2007-11-15

申请号：US11880215

申请日：2007-07-21

Applicant: Enrique Stiles

Inventor： Enrique Stiles

IPC: H04R1/28

CPC classification number: H04R1/403 ,  H04R3/12 ,  H04R3/14 ,  H04R7/14 ,  H04R9/025 ,  H04R9/048 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/20

Abstract: An audio loudspeaker which includes a plurality of line source transducers arranged side by side and operated utilizing Bessel coefficient such that the loudspeaker as a whole operates as a line source within a line source operating frequency range. Optionally, the line source transducers may be operated in conventional line array fashion outside the frequency range in which the Bessel coefficients exhibit polar response benefit; for example, the line source transducers may all be driven with +1 coefficients below the Bessel coefficient frequency range to increase low frequency output. The loudspeaker may optionally include a tweeter that operates above the Bessel coefficient frequency range, and/or a woofer that operates below the Bessel coefficient frequency range.

Abstract translation: 一种音频扬声器，包括并排布置的多个线源换能器，利用贝塞尔系数进行操作，使得扬声器作为整体在线源工作频率范围内作为线源工作。 可选地，线源换能器可以在贝塞尔系数显示出极性响应益处的频率范围之外的常规线阵列方式操作; 例如，线源换能器可以全部以低于贝塞尔系数频率范围的+1系数驱动以增加低频输出。 扬声器可以可选地包括在贝塞尔系数频率范围之上操作的高音单元和/或低于贝塞尔系数频率范围的低音扬声器。

公开(公告)号：US07260228B2

公开(公告)日：2007-08-21

申请号：US10796199

申请日：2004-03-10

Applicant: Charles Emory Hughes ,  Kirk Samuel Lombardo

Inventor： Charles Emory Hughes ,  Kirk Samuel Lombardo

IPC: H04R5/02

CPC classification number: H04R3/12 ,  H04R1/403 ,  H04R2201/405

Abstract: The loudspeaker has a first pair of drivers arranged in a line, a center point along the line, wherein the pair of drivers are substantially centered about the center point with a center to center distance, d0, between the drivers in the first pair of drivers, whereby the maximum frequency with out high amplitude side lobes is equal to c/2d0, and at least a subsequent pair of drivers arranged in the line array with the first pair of drivers and substantially centered about the center point, wherein the subsequent pair of drivers are spaced such that the center to center distance between each driver in the subsequent pair, dn, is equal to 4nd0, where n=0 at the innermost pair of drivers and n increases by 1 with each pair of drivers sequentially added. Each pair of drivers for n>0 has a first order low pass filter with a frequency equal to 2c/dn.

Abstract translation: 扬声器具有沿着线路排列的第一对驱动器，沿着线的中心点，其中所述一对驱动器基本上围绕中心点居中，其中心到中心距离d 0 第一对驱动器中的驱动器，其中具有高振幅旁瓣的最大频率等于c / 2d <0>，并且至少一组随后的一对驱动器布置在线阵列中，具有第一 一对驱动器并且基本上围绕中心点居中，其中随后的一对驱动器间隔开，使得后续对中的每个驱动器之间的中心到中心距离等于第4个 _{0 ，其中在最内侧的驱动器对上n = 0，并且每对驱动器依次添加，n增加1。 n> 0的每对驱动器具有频率等于2c / d 的一阶低通滤波器。}

公开(公告)号：US07098865B2

公开(公告)日：2006-08-29

申请号：US10507753

申请日：2003-03-14

Applicant: Jacob Juhl Christensen ,  Jorgen Hald

Inventor： Jacob Juhl Christensen ,  Jorgen Hald

IPC: H01Q21/00 ,  H04R3/00

CPC classification number: H04R3/12 ,  H01Q3/26 ,  H01Q21/061 ,  H01Q21/22 ,  H04R1/403 ,  H04R1/406 ,  H04R3/005 ,  H04R2201/401 ,  H04R2201/405 ,  H04R2430/20

Abstract: A two-dimensional array of a plurality of transducers comprising a first plurality of like sub-arrays (11, 11a, 11b) of transducers (10) in a circularly symmetric arrangement around a common centre (C), where the transducers in each sub-array of the first plurality have individual distances from the common centre that form a progressive series of distances with a first lower limit and a first upper limit. Each sub-array in the first plurality of sub-arrays comprises at least three transducers arranged on a first straight line (12), and the first straight line is offset laterally a first distance (d) from the common centre. The number of sub-arrays is odd, and the sub-arrays may be separate units that can be selectively assembled to form the two-dimensional array and selectively disassembled.

Abstract translation: 多个换能器的二维阵列包括围绕公共中心（C）以圆周对称布置的换能器（10）的第一多个相似的子阵列（11,11a，11b），其中换能器 第一多个的每个子阵列具有与公共中心的单独距离，其形成具有第一下限和第一上限的渐进的距离系列。 第一多个子阵列中的每个子阵列包括布置在第一直线（12）上的至少三个换能器，并且第一直线从公共中心横向偏移第一距离（d）。 子阵列的数量是奇数，并且子阵列可以是可以选择性地组装以形成二维阵列并且选择性地拆卸的单独的单元。

公开(公告)号：US20060159289A1

公开(公告)日：2006-07-20

申请号：US11358880

申请日：2006-02-21

Applicant: Enrique Stiles ,  Patrick Turnmire ,  Richard Calderwood

Inventor： Enrique Stiles ,  Patrick Turnmire ,  Richard Calderwood

IPC: H04R3/00 ,  H04R1/02

CPC classification number: H04R1/26 ,  H04R1/403 ,  H04R3/04 ,  H04R3/12 ,  H04R3/14 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2499/15

Abstract: A Bessel Array loudspeaker in which identical transducers are fed full amplitude signals. The half amplitude output at some Bessel positions can be achieved by angling those transducers to the side or up/down. The half amplitude transducers can be coupled to separate cabinets which can be rotated left/right with respect to the full amplitude transducers' cabinet, and the rotation can automatically reconfigure the wiring of the half amplitude transducers. The half amplitude output can alternatively be achieved by driving only half of the voice coil windings of the half amplitude transducers. The other half of their voice coil windings can optionally be driven via a low pass filter, to achieve an Improved Bessel with increased bass output and sensitivity.

Abstract translation: 贝塞尔阵列扬声器，其中相同的换能器被馈送全幅度信号。 某些贝塞尔位置的半幅度输出可以通过将这些传感器倾斜到侧面或上/下来实现。 半幅度传感器可以耦合到可相对于全幅度传感器柜左右旋转的独立机柜，旋转可以自动重新配置半幅度传感器的接线。 可以通过仅驱动半幅度传感器的一半音圈绕组来实现半幅度输出。 其另一半的音圈绕组可以选择性地通过低通滤波器驱动，以实现改进的贝塞尔，增加低音输出和灵敏度。