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    AUDIO SYSTEM
    2.
    发明申请
    AUDIO SYSTEM 有权
    音频系统

    公开(公告)号：US20130293723A1

    公开(公告)日：2013-11-07

    申请号：US13886806

    申请日：2013-05-03

    申请人： SONY COMPUTER ENTERTAINMENT EUROPE LIMITED

    发明人： Simon Mark Benson ,  Ian Henry Bickerstaff

    IPC分类号： G10K11/175

    CPC分类号： G10K11/175 ,  G02B27/017 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/3215 ,  H04R1/1083 ,  H04R5/033

    摘要： An audio system comprises a headset comprising a pair of earpieces positionable with respect to the user's ears so that, in use, the user is inhibited from hearing sounds from the user's environment, at least one of the earpieces having a transducer for reproducing sounds from an input audio signal; a microphone for generating a captured audio signal representing captured sounds from the user's environment; a detector for detecting the presence of any of a set of one or more characteristic sounds in the captured audio signal; and a controller operable to transmit sounds from the user's environment to the user in response to a detection that one or more of the set of characteristic sounds is present in the captured audio signal.

    摘要翻译： 音频系统包括耳机，其包括可相对于用户的耳朵定位的一对耳机，使得在使用中禁止用户听到来自用户的环境的声音，至少一个耳机具有用于再现来自 输入音频信号; 用于产生表示来自用户环境的捕获声音的捕获音频信号的麦克风; 检测器，用于检测所捕获的音频信号中存在一组一个或多个特征声音中的任何一个; 以及控制器，其可操作以响应于检测到所述一组特征声音存在于所捕获的音频信号中，从用户的环境向用户发送声音。

    SYSTEM AND METHOD FOR NOISE CANCELLATION WITH MOTION TRACKING CAPABILITY
    3.
    发明申请
    SYSTEM AND METHOD FOR NOISE CANCELLATION WITH MOTION TRACKING CAPABILITY 审中-公开
    用于具有运动跟踪能力的噪声消除的系统和方法

    公开(公告)号：US20080304677A1

    公开(公告)日：2008-12-11

    申请号：US11761891

    申请日：2007-06-12

    申请人： Amir ABOLFATHI ,  Mohsen Sarraf

    发明人： Amir ABOLFATHI ,  Mohsen Sarraf

    IPC分类号： G10K11/178 ,  G10K11/00

    CPC分类号： G10K11/178 ,  G10K2210/12 ,  G10K2210/3215

    摘要： A system and method for noise cancellation is disclosed herein generally having at least one microphone, a processor, and a speaker array. The processor may contain an adaptive filtering feature, to separate desirable sound from undesirable sound. The undesirable sound may be suppressed by the processor by creating a canceling waveform and transmitting the canceling waveform to the user's head via a speaker array. The desirable sound may be enhanced by increasing the amplitude of the waveform and transmitting the amplified waveform to the user's head via a speaker array. The sound transmitted to the user's head by the system may be localized using an image tracking subsystem and speaker array. The image tracking system may track the actual visible image or alternatively a heat (e.g. infrared) image of the user's head.

    摘要翻译： 本文公开了一种用于噪声消除的系统和方法，其通常具有至少一个麦克风，处理器和扬声器阵列。 处理器可以包含自适应滤波特征，以将期望的声音与不期望的声音分离。 可能由处理器通过产生消除波形并且经由扬声器阵列将消除波形发送到用户的头部来抑制不期望的声音。 可以通过增加波形的幅度并通过扬声器阵列将放大的波形发送到用户的头部来增强期望的声音。 通过系统传输到用户头部的声音可以使用图像跟踪子系统和扬声器阵列来定位。 图像跟踪系统可以跟踪实际的可见图像，或者跟踪用户头部的热（例如红外）图像。

    Generating acoustic quiet zone by noise injection techniques
    4.
    发明授权
    Generating acoustic quiet zone by noise injection techniques 有权

    公开(公告)号：US11887575B2

    公开(公告)日：2024-01-30

    申请号：US16006695

    申请日：2018-06-12

    申请人： SPATIAL DIGITAL SYSTEMS, INC.

    发明人： Donald C. D. Chang ,  Steve K. Chen

    IPC分类号： G10K11/178 ,  G01S19/21 ,  G10K11/34

    CPC分类号： G10K11/17857 ,  G01S19/215 ,  G10K11/34 ,  G10K11/341 ,  G10K2210/12 ,  G10K2210/128 ,  G10K2210/3215

    摘要： A system for generating and injecting acoustic interference signals to mitigate undesired acoustic noise over a target zone. M pickup sensors pick up acoustic noise signals from one or more noise sources in real time and generate M noise signals, M>1. A beam forming network includes M acoustic beam forming modules to process the M noise signals respectively and generate N acoustic interference signals. N acoustic injectors condition, amplify and inject the N acoustic interference signals over the target zone, N>1. Each of the M acoustic beam forming modules includes a 1-to-N distribution network to transform a respective one of the M noise signals into N signals, and N finite-impulse-response filters to perform amplitude and phase weighting on the respective N signals and generate N intermediate signals which are combined respectively with corresponding intermediate signals generated by remaining M−1 acoustic beam forming modules to generate the N acoustic interference signals.

    ACTIVE NOISE REDUCTION EARPHONES
    6.
    发明申请
    ACTIVE NOISE REDUCTION EARPHONES 审中-公开

    公开(公告)号：US20180190260A1

    公开(公告)日：2018-07-05

    申请号：US15861339

    申请日：2018-01-03

    申请人： Harman Becker Automotive Systems GmbH

    发明人： Markus E. CHRISTOPH

    IPC分类号： G10K11/178 ,  H04R1/10

    CPC分类号： G10K11/17854 ,  G10K2210/111 ,  G10K2210/3028 ,  G10K2210/3215 ,  H04R1/1083 ,  H04R2410/01 ,  H04R2410/05 ,  H04R2460/01

    摘要： An active noise reducing earphone includes a rigid cup-like shell having an inner surface and an outer surface is provided. The inner surface encompasses a cavity with an opening, and a microphone arrangement is configured to pick up sound with at least one steerable beam-like directivity characteristic, and to provide a first electrical signal that represents the picked-up sound. The earphone further includes an active noise control filter configured to provide, based on the first electrical signal, a second electrical signal, and a speaker disposed in the opening of the cavity and configured to generate sound from the second electrical signal. The active noise control filter has a transfer characteristic that is configured so that noise that travels through the shell from beyond the outer surface to beyond the inner surface is reduced by the sound generated by the speaker.

    Headphone with microphones that processes external sound pickup by the microphones and inputs external source sound signal
    8.
    发明授权
    Headphone with microphones that processes external sound pickup by the microphones and inputs external source sound signal 有权
    带麦克风的耳机，可通过麦克风处理外部声音拾取，并输入外部声源信号

    公开(公告)号：US09432767B2

    公开(公告)日：2016-08-30

    申请号：US13636407

    申请日：2011-03-22

    申请人： Toshiyuki Hata ,  Toshiaki Ishibashi

    发明人： Toshiyuki Hata ,  Toshiaki Ishibashi

    IPC分类号： G10K11/16 ,  H04R3/00 ,  G10K11/178 ,  G10L21/0208 ,  H04R1/10 ,  H04R1/40 ,  H04R5/033

    CPC分类号： H04R3/005 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/3215 ,  G10L21/0208 ,  H04R1/10 ,  H04R1/406 ,  H04R5/033 ,  H04R2420/01

    摘要： A headphone includes: a pair of earphone units each of which includes a speaker and a plurality of microphones which are arranged at a back side of the speaker in a given pattern and through which external sounds are picked up; a sound pickup signal generator configured to generate a plurality of sound pickup signals, each of which has a given directivity, by using a plurality of signals outputted from the plurality of microphones; an external source sound input section through which an external source sound signal from an external source is inputted; and a sound emission signal generator configured to generate sound emission signals, which are to be inputted to the speakers of the earphone units and each of which has a directivity, by using the external source sound signal and the plurality of sound pickup signals.

    摘要翻译： 耳机包括：一对耳机单元，每个耳机单元包括扬声器和多个麦克风，它们以给定的图案布置在扬声器的后侧，并通过该麦克风拾取外部声音; 拾音信号发生器，被配置为通过使用从所述多个麦克风输出的多个信号来产生具有给定方向性的多个拾音信号; 来自外部源的外部源声音信号通过该外部源声音输入部输入; 以及声音发射信号发生器，被配置为通过使用外部源声音信号和多个声音拾取信号来生成要被输入到耳机单元的扬声器并且每个具有方向性的声音发射信号。

    Generating Acoustic Quiet Zone by Noise Injection Techniques
    9.
    发明申请
    Generating Acoustic Quiet Zone by Noise Injection Techniques 有权
    通过噪声注入技术生成声学安静区域

    公开(公告)号：US20120057716A1

    公开(公告)日：2012-03-08

    申请号：US13008833

    申请日：2011-01-18

    申请人： Donald C. D. Chang ,  Steve Chen

    发明人： Donald C. D. Chang ,  Steve Chen

    IPC分类号： G10K11/16

    CPC分类号： G01S19/215 ,  G10K11/178 ,  G10K11/34 ,  G10K11/341 ,  G10K2210/12 ,  G10K2210/128 ,  G10K2210/3215

    摘要： A quiet zone generation technique for acoustic/audio signals is proposed for mitigation of selected noise or interferences over limited areas in free space by injecting the very acoustic noise, interference, or audio feedback signals via iterative processing, generating quiet zones dynamically. This creates undesired noise-free quiet zones. Optimization loops operating iteratively to electronically process cancellation signals consist of three interconnected functional blocks: (1) an acoustic injection array, consisting of pick-up arrays to obtain the interference signals, beam forming networks for element weighting and/or re-positioning, and array elements for noise injections, (2) a diagnostic network with strategically located probes, and (3) an optimization processor with cost minimization algorithms to calculate element weights for updating.

    摘要翻译： 提出了一种用于声/音信号的安静区产生技术，用于通过经由迭代处理注入非常声噪声，干扰或音频反馈信号来缓解在自由空间中的有限区域上所选择的噪声或干扰，从而动态产生静区。 这产生不需要的无噪声安静区。 电子处理消除信号的优化循环由三个互连的功能块组成：（1）由获取干扰信号的拾取阵列组成的声学注入阵列，用于元件加权和/或重新定位的波束形成网络，以及 用于噪声注入的阵列元素，（2）具有策略定位探针的诊断网络，以及（3）具有成本最小化算法的优化处理器，用于计算元素权重以用于更新。

    Method of compensating for beamformer steering delay during handsfree speech recognition
    10.
    发明申请
    Method of compensating for beamformer steering delay during handsfree speech recognition 审中-公开
    在免提语音识别期间补偿波束形成器转向延迟的方法

    公开(公告)号：US20030204397A1

    公开(公告)日：2003-10-30

    申请号：US10421316

    申请日：2003-04-23

    申请人： Mitel Knowledge Corporation

    发明人： Maziar Amiri ,  Graham Thompson

    IPC分类号： G10L015/00

    CPC分类号： G10L15/28 ,  G10K11/178 ,  G10K11/346 ,  G10K2210/108 ,  G10K2210/3215 ,  G10L21/02 ,  G10L2021/02166

    摘要： A beamformer for outputting an enhanced signal to a speech recognition system, comprising a microphone array for receiving audio signals from a plurality of microphones, a steering module connected to the microphone array for calculating audio parameters related to the location of a talker, the steering module being subject to an inherent initial delay in calculating the parameters, a buffer module connected to the microphone array for delaying the audio signals by at least the inherent initial delay; and a beamforming part connected to the buffer module and the steering module for directing the microphone array toward the talker in response to receiving the audio parameters from the steering part, such that an enhanced signal is output for application to a speech recognition system.

    摘要翻译： 一种用于将增强信号输出到语音识别系统的波束形成器，包括用于从多个麦克风接收音频信号的麦克风阵列，连接到麦克风阵列的转向模块，用于计算与讲话者的位置相关的音频参数，转向模块 在计算参数时受到固有的初始延迟;连接到麦克风阵列的缓冲器模块，用于至少延迟固有的初始延迟; 以及波束形成部分，连接到缓冲器模块和转向模块，用于响应于从转向部分接收音频参数而将麦克风阵列引向讲话者，使得输出增强的信号以应用于语音识别系统。