公开(公告)号：US07313243B2

公开(公告)日：2007-12-25

申请号：US10781817

申请日：2004-02-20

Applicant: Tien-Ming Hsu

Inventor： Tien-Ming Hsu

IPC: H04R3/00

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

Abstract: A sound pickup system includes a sound source tracking device that is operable to obtain distance and direction values of a target sound source relative to the sound source tracking device, and that determines nearest and farthest ones of a plurality of microphones in a microphone array relative to the target sound source with reference to determined distances of the sound source tracking device from the microphones, and the distance and direction values obtained by the sound source tracking device. A signal processing unit includes a delay calculator for determining appropriate time delays for the microphones with reference to information from the sound source tracking device, and a delay processor for processing signals generated by the microphones in the microphone array by introducing the corresponding time delays determined by the delay calculator into the signals from the microphones.

Abstract translation: 声音拾取系统包括声源跟踪装置，其可操作以获得目标声源相对于声源跟踪装置的距离和方向值，并且确定麦克风阵列中的多个麦克风中的最远和最远的麦克风相对于 参考声源跟踪装置从麦克风确定的距离的目标声源以及由声源跟踪装置获得的距离和方向值。 信号处理单元包括参考来自声源跟踪装置的信息确定麦克风的适当时间延迟的延迟计算器，以及延迟处理器，用于通过引入由麦克风阵列确定的对应的时间延迟来处理由麦克风阵列中的麦克风产生的信号 将延迟计算器转换成来自麦克风的信号。

公开(公告)号：US20070253583A1

公开(公告)日：2007-11-01

申请号：US11380840

申请日：2006-04-28

Applicant: John Melanson

Inventor： John Melanson

IPC: H04R5/02 ,  H04R1/02

CPC classification number: H04S7/301 ,  H04R3/12 ,  H04R3/14 ,  H04R2201/403 ,  H04R2430/20

Abstract: A method and system for sound beam-forming using internal device speakers in conjunction with external speakers provides a low cost alternative to present external surround array systems. A processing circuit within an audio device or audio/visual (AV) device such as a digital television (DTV) generates signals for internal and external speakers that phase-align the internal speakers with the external speakers for beam-forming. The beam may be a surround beam directed away from a listening position so that surround channel information is only heard as reflections. Alternatively, the beam may be a “night mode” beam that concentrates sound at a particular location or multiple beams may be formed for picture-in-picture or other applications where it is desirable to provide multiple isolated listening locations.

Abstract translation: 使用内部设备扬声器结合外部扬声器进行声束形成的方法和系统提供了低成本的替代方式来呈现外部环绕声阵列系统。 诸如数字电视（DTV）之类的音频设备或音频/视频（AV）设备内的处理电路产生用于内部和外部扬声器的信号，该内部和外部扬声器使内部扬声器与用于波束形成的外部扬声器相对准。 光束可以是远离聆听位置的环绕光束，使得环绕声道信息仅被听到作为反射。 或者，光束可以是将声音集中在特定位置处的“夜间模式”光束，或者可以为需要提供多个隔离的收听位置的画中画或其它应用而形成多个光束。

公开(公告)号：US20070253573A1

公开(公告)日：2007-11-01

申请号：US11787690

申请日：2007-04-17

Applicant: Ulrich Kornagel

Inventor： Ulrich Kornagel

IPC: H04B15/00 ,  G06F15/00 ,  H03F1/26 ,  H04R3/00

CPC classification number: H04R25/407 ,  H04R2201/403 ,  H04R2225/43

Abstract: The selection of a plurality of sound sources for the purposes of preferential presentation should be structured to be more convenient for hearing instrument wearers. For this purpose, provision is made to separate the signals of the plurality of sources picked up and present them one after another with the aid of a corresponding control unit. On the basis of the presentation, the user can, likewise by means of the control units, select one of the plurality of signals for the purposes of further processing. The selection is preferably effected by pressing a button or by looking in the direction of the desired source plus pressing a button by way of acknowledgment.

Abstract translation: 为了优先呈现而选择多个声源应该被构造成更方便听觉乐器佩戴者。 为此，提供了借助于相应的控制单元来分离拾取的多个源的信号并将它们呈现给它们。 基于该呈现，用户也可以通过控制单元选择多个信号之一用于进一步处理。 该选择优选地通过按压按钮或者通过以所需确认的方式查找期望的来源的方向加上按钮来实现。

公开(公告)号：US20070223711A1

公开(公告)日：2007-09-27

申请号：US11439286

申请日：2006-05-24

Applicant: Mingsian Bai ,  Jia-Hong Lin ,  Yu-Wei Ning

Inventor： Mingsian Bai ,  Jia-Hong Lin ,  Yu-Wei Ning

IPC: H04R29/00 ,  H03G3/00 ,  G06F17/00

CPC classification number: H04R29/005 ,  G01H3/125 ,  H04R1/406 ,  H04R2201/401 ,  H04R2201/403

Abstract: The present invention discloses a system for visualizing sound source energy distribution and a method thereof, wherein a propagation matrix and a window matrix are obtained firstly; next, an inverse operation of the propagation matrix is performed; next, a multiplication operation of the result of the inverse operation and the window matrix is performed; next, the result of the multiplication operation is transformed from the time domain to the frequency domain; thus, a sound source energy distribution reconstructor is established; then, an array of microphones is used to receive the sound source signals; next, a multi-channel capture device transforms the received sound source signals into digital sound source signals; lastly, a convolution operation is performed on the digital sound source signals and the sound source energy distribution reconstructor to obtain a visualized sound source energy distribution. Therefore, the present invention can provide the energy distributions of nearfield/farfield stable-state/unstable-state sound sources.

Abstract translation: 本发明公开了一种用于可视化声源能量分布的系统及其方法，其中首先获得传播矩阵和窗口矩阵; 接下来，执行传播矩阵的逆运算; 接下来，执行逆操作的结果和窗口矩阵的乘法运算; 接下来，乘法运算的结果从时域变换到频域; 建立了声源能量分配重建器; 然后，使用麦克风阵列接收声源信号; 接下来，多通道捕获装置将接收到的声源信号转换为数字声源信号; 最后，对数字声源信号和声源能量分配重构器执行卷积运算，以获得可视化的声源能量分布。 因此，本发明可以提供近场/远场稳态/不稳定状态声源的能量分布。

公开(公告)号：US07274794B1

公开(公告)日：2007-09-25

申请号：US09927771

申请日：2001-08-10

Applicant: Erik Witthoefft Rasmussen

Inventor： Erik Witthoefft Rasmussen

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04R25/407 ,  H04R29/006 ,  H04R2201/403

Abstract: A sound processing system including at least one microphone, an audio processor, and at least one output device. The audio processor includes an analog beamformer, a microphone equalizer, and an apparent incidence processor. Two different embodiments of the apparent incidence processor are disclosed, that is, a wave generation method and a forward filtering method. Both embodiments use the same principles to estimate the properties of the individual waves of the sound field. With the present invention, it is possible to implement arbitrary directivity responses using a small number of microphones only, that is, two or three microphones. The present invention offers improved noise reduction also for environments with many independent noise sources. Furthermore, the present invention works for signals and noises with arbitrary statistics.

Abstract translation: 一种声音处理系统，包括至少一个麦克风，音频处理器和至少一个输出设备。 音频处理器包括模拟波束形成器，麦克风均衡器和表观入射处理器。 公开了表观发生处理器的两个不同实施例，即波生成方法和正向滤波方法。 两个实施例使用相同的原理来估计声场的各个波的特性。 利用本发明，可以仅使用少量的麦克风，即两个或三个麦克风来实现任意的方向性响应。 本发明为具有许多独立噪声源的环境提供改进的降噪。 此外，本发明适用于任意统计的信号和噪声。

公开(公告)号：US20070172079A1

公开(公告)日：2007-07-26

申请号：US11701629

申请日：2007-02-02

Applicant: Markus Christoph

Inventor： Markus Christoph

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2201/405 ,  H04R2430/23 ,  H04R2430/25 ,  H04R2499/13

Abstract: A handsfree communication system includes microphones, a beamformer, and filters. The microphones are spaced apart and are capable of receiving acoustic signals. The beamformer compensates for propagation delays between the direct and reflected acoustic signals. The filters are configured to a predetermined susceptibility level. The filter process the output of the beamformer to enhance the quality of the received signals.

Abstract translation: 免提通信系统包括麦克风，波束形成器和滤波器。 麦克风间隔开并且能够接收声信号。 波束形成器补偿直接和反射声信号之间的传播延迟。 过滤器被配置为预定的敏感度水平。 滤波器处理波束形成器的输出以增强接收信号的质量。

公开(公告)号：US20070086603A1

公开(公告)日：2007-04-19

申请号：US10553774

申请日：2004-04-22

Applicant: Richard Lyon ,  David Bowen ,  Gladys Unger

Inventor： Richard Lyon ,  David Bowen ,  Gladys Unger

IPC: H04R3/00 ,  H04R29/00

CPC classification number: H04R23/00 ,  H04R3/005 ,  H04R2201/403

Abstract: A transducer senses sounds produced by a talker or other source and measures acceleration of air. Enhancement of acceleration is accompanied by reduction of the portion of the sound energy that escapes from the regions around the transducer. The result is a high sensitivity transducer, with increased privacy for use in communication systems, especially cell phones and in a multi-person environment. A pressure sensor array with a weighted output is sensitive to sound from a source talker only, and not to acoustic background noise, and not to a local loudspeaker. The weighted signal is a source sum pressure signal. The array produces a signal (using a different weighting) that corresponds to an estimate of a derivative of pressure. The derivative signal is proportional to the volume velocity fluctuations produced by the source. This signal is enhanced, rather than reduced. A local loudspeaker is driven to make the source sum pressure signal as small as desired. The loudspeaker is driven to produce volume velocity fluctuations approximately equal and opposite to those produced by the source. No compression of air arises due to the talker, and no sound is radiated into the far field. All happens because the system is driven to reduce the source pressure sum signal to below a desired threshold. It is not necessary to directly measure the volume velocity fluctuations of the talker source.

Abstract translation: 传感器检测由讲话者或其他来源产生的声音，并测量空气的加速度。 加速度的增强伴随着从换能器周围的区域逸出的声能的一部分的减少。 结果是一个高灵敏度的传感器，增加了在通信系统，特别是手机和多人环境中使用的隐私。 具有加权输出的压力传感器阵列仅对来自源讲话者的声音敏感，而不对声学背景噪声敏感，而不对本地扬声​​器敏感。 加权信号是源和压力信号。 阵列产生对应于压力导数的估计的信号（使用不同的加权）。 导数信号与源产生的体积速度波动成比例。 这个信号是增强的，而不是减少。 驱动本地扬声器使源和压力信号根据需要变小。 扬声器被驱动以产生与源产生的体积速度波动大致相等和相反的音量。 由于讲话者没有压缩空气，没有声音辐射到远场。 所有这一切都是因为系统被驱动以将源压力和信号减小到低于所需阈值。 不需要直接测量扬声器源的音量速度波动。

公开(公告)号：US20070064959A1

公开(公告)日：2007-03-22

申请号：US10578788

申请日：2004-11-10

Applicant: Arthur Boothroyd

Inventor： Arthur Boothroyd

IPC: H04R3/00

CPC classification number: H04R25/554 ,  H04R25/405 ,  H04R25/407 ,  H04R2201/403 ,  H04R2420/07

Abstract: The invention relates to a method and a system for achieving increased directivity in listening situations where at least one microphone (1, 2, 3) is embedded in a first structure (11) and at least one microphone (4) is embedded in a second structure (10), the first and the second structure being freely movable relative to each other, the method comprising conveying a microphone signal from one structure (11) to a common processing unit (8) for the microphone signals in the other structure (10) and successively processing the signals for achieving a directional output based on the microphone input to both structures.

Abstract translation: 本发明涉及一种用于在收听情况下实现增加的指向性的方法和系统，其中至少一个麦克风（1,2,3）嵌入在第一结构（11）中，并且至少一个麦克风（4）被嵌入第二个 结构（10），所述第一和第二结构相对于彼此可自由移动，所述方法包括将麦克风信号从一个结构（11）传送到公共处理单元（8），用于另一结构（10 ），并且基于对这两个结构的麦克风输入连续地处理用于实现方向输出的信号。

公开(公告)号：US20070030982A1

公开(公告)日：2007-02-08

申请号：US11545256

申请日：2006-10-10

Applicant: Douglas Jones ,  Michael Lockwood ,  Robert Bilger ,  Carolyn Bilger ,  Albert Feng ,  Charissa Lansing ,  William O'Brien ,  Bruce Wheeler ,  Mark Elledge ,  Chen Liu

Inventor： Douglas Jones ,  Michael Lockwood ,  Robert Bilger ,  Carolyn Bilger ,  Albert Feng ,  Charissa Lansing ,  William O'Brien ,  Bruce Wheeler ,  Mark Elledge ,  Chen Liu

IPC: H04B15/00

CPC classification number: H04R25/407 ,  G10L2021/02165 ,  H04R3/005 ,  H04R2201/403 ,  H04R2225/43 ,  H04R2430/20

Abstract: System (10) is disclosed including an acoustic sensor array (20) coupled to processor (42). System (10) processes inputs from array (20) to extract a desired acoustic signal through the suppression of interfering signals. The extraction/suppression is performed by modifying the array (20) inputs in the frequency domain with weights selected to minimize variance of the resulting output signal while maintaining unity gain of signals received in the direction of the desired acoustic signal. System (10) may be utilized in hearing aids, voice input devices, surveillance devices, and other applications.

Abstract translation: 公开了包括耦合到处理器（42）的声学传感器阵列（20）的系统（10）。 系统（10）处理来自阵列（20）的输入，以通过抑制干扰信号来提取期望的声信号。 通过修改频域中的阵列（20）输入来执行提取/抑制，该权重被选择以最小化所得到的输出信号的方差，同时保持在所需声信号的方向上接收的信号的单位增益。 系统（10）可以用于助听器，语音输入设备，监视设备和其他应用中。

公开(公告)号：US07154813B2

公开(公告)日：2006-12-26

申请号：US10894150

申请日：2004-07-19

Applicant: Gareth Knowles ,  Eli Hughes

Inventor： Gareth Knowles ,  Eli Hughes

IPC: H04R17/00

CPC classification number: G01H11/06 ,  B06B1/02 ,  G01H3/00 ,  H04R1/44 ,  H04R2201/401 ,  H04R2201/403

Abstract: A sensor with sound navigation and ranging applications is presented. The invention includes a pressure conduction composite sandwiched between electrically conductive elements so as to sense pressure associated with an acoustic wave via a change in conductance within the composite. One electrically conductive element is rigid and includes the hull of a vessel or wall of a sea-based device. The pressure conduction composite is composed of a non-conductive matrix having a conductive fill at or near the percolation threshold of the material system. The pressure conduction composite is highly resistive in its uncompressed state. However, resistance decreases with increasing compression. In preferred embodiments, sensors are arranged in an array architecture including planar and conformal configurations. The present invention has immediate application in submarines, ships, and sonobuoys.

Abstract translation: 介绍了具有声音导航和测距应用的传感器。 本发明包括夹在导电元件之间的压力传导复合材料，以便通过复合材料内的电导率的变化感测与声波相关的压力。 一个导电元件是刚性的，并且包括海基装置的容器或壁的船体。 压力传导复合材料由材料体系渗透阈值处或接近渗透填料的非导电基体组成。 压力传导复合材料在其未压缩状态下具有高电阻性。 然而，电阻随压缩增加而减小。 在优选实施例中，传感器被布置成包括平面和共形配置的阵列架构。 本发明可以直接应用于潜艇，船舶和声波发生器。