专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09721556B2 Downlink tone detection and adaptation of a secondary path response model in an adaptive noise canceling system 有权
公开(公告)号：US09721556B2
公开(公告)日：2017-08-01
申请号：US15070564
申请日：2016-03-15
申请人： Cirrus Logic, Inc.
发明人： Dayong Zhou , Yang Lu , Jon D. Hendrix , Jeffrey Alderson , Antonio John Miller , Chin Yong , Gautham Devendra Kamath
IPC分类号： G10K11/16 , H03B29/00 , G10K11/175 , G10K11/178
CPC分类号： G10K11/175 , G10K11/16 , G10K11/178 , G10K2210/00 , G10K2210/108 , G10K2210/3011 , G10K2210/30231 , G10K2210/3028 , G10K2210/30351 , G10K2210/503
摘要： An adaptive noise canceling (ANC) circuit adaptively generates an anti-noise signal from a reference microphone signal that is injected into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone proximate the speaker provides an error signal. A secondary path estimating adaptive filter estimates the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Tones in the source audio, such as remote ringtones, present in downlink audio during initiation of a telephone call, are detected by a tone detector using accumulated tone persistence and non-silence hangover counting, and adaptation of the secondary path estimating adaptive filter is halted to prevent adapting to the tones. Adaptation of the adaptive filters is then sequenced so any disruption of the secondary path adaptive filter response is removed before allowing the anti-noise generating filter to adapt.

2. 发明申请

US20160379620A1 SYSTEM AND METHOD OF MICROPHONE PLACEMENT FOR NOISE ATTENUATION 审中-公开
标题翻译：用于噪声衰减的麦克风放置系统和方法
公开(公告)号：US20160379620A1
公开(公告)日：2016-12-29
申请号：US15212302
申请日：2016-07-18
申请人： Bose Corporation
发明人： David J. Warkentin , Ryan C. Struzik , Wade P. Torres , Paul T. Bender , David Easterbrook
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K11/17857 , G10K11/17873 , G10K2210/1282 , G10K2210/30351 , G10K2210/3055 , G10K2210/3221 , G10K2210/3226 , H04R1/1083 , H04R2227/001 , H04R2410/01 , H04R2499/13
摘要： A method and system for attenuating noise comprises identifying a location in an area at which sound emitted from one or more speakers has acoustic characteristics that are substantially similar in measure to corresponding acoustic characteristics of the emitted sound at a location approximated to be near an ear of an occupant of the area. A microphone, which may be a virtual microphone, is disposed at the identified location. The microphone detects sound at the identified location. In response to the sound detected by the microphone, the one or more speakers emit a noise-canceling audio signal adapted to attenuate one or more frequencies in the sound detected by the microphone.
摘要翻译：用于衰减噪声的方法和系统包括识别在一个区域中的位置，在该区域中，从一个或多个扬声器发出的声音的声学特性基本上类似于在近似于靠近耳朵的耳朵处的发射声音的相应声学特性该地区的乘客。可以是虚拟麦克风的麦克风被布置在所识别的位置。麦克风在识别的位置检测声音。响应于由麦克风检测到的声音，一个或多个扬声器发出适于衰减由麦克风检测到的声音中的一个或多个频率的噪声消除音频信号。

3. 发明申请

US20160189701A1 NETWORKED SOUND MASKING SYSTEM 审中-公开
公开(公告)号：US20160189701A1
公开(公告)日：2016-06-30
申请号：US15060433
申请日：2016-03-03
申请人： 777388 ONTARIO LIMITED
发明人： Klaus Moeller , Niklas Moeller , Mircea Rusu , Carl Derla
IPC分类号： G10K11/175 , H04R3/00
CPC分类号： G10K11/175 , G10K2210/3014 , G10K2210/30351 , G10K2210/3049 , H04K3/42 , H04K3/43 , H04K3/45 , H04K3/825 , H04K2203/12 , H04K2203/34 , H04M11/027 , H04R3/002 , H04R27/00 , H05K5/0247
摘要： A sound masking system for shaping the ambient noise level in a physical environment. The sound masking system comprises a networked and distributed system having a number of master units coupled together and to a control unit. One or more of the master units may include satellite sound masking units which function to reproduce the sound masking signal generated by the master sound masking unit. Each of the master units is addressable over the network by the control unit enabling the control unit to program the contour, spectral band, and gain characteristics of the sound masking output signal. The system may also include a remote control unit which provides the capability to tune and adjust each master sound masking unit in situ without requiring physical access through the ceiling installation.

4. 发明申请

US20130243215A1 NETWORKED SOUND MASKING SYSTEM 审中-公开
标题翻译：网络声音屏蔽系统
公开(公告)号：US20130243215A1
公开(公告)日：2013-09-19
申请号：US13890824
申请日：2013-05-09
申请人： Klaus Moeller , Niklas Moeller , Mircea Rusu , Carl Derla
发明人： Klaus Moeller , Niklas Moeller , Mircea Rusu , Carl Derla
IPC分类号： H04R3/00
CPC分类号： G10K11/175 , G10K2210/3014 , G10K2210/30351 , G10K2210/3049 , H04K3/42 , H04K3/43 , H04K3/45 , H04K3/825 , H04K2203/12 , H04K2203/34 , H04M11/027 , H04R3/002 , H04R27/00 , H05K5/0247
摘要： A sound masking system for shaping the ambient noise level in a physical environment. The sound masking system comprises a networked and distributed system having a number of master units coupled together and to a control unit. One or more of the master units may include satellite sound masking units which function to reproduce the sound masking signal generated by the master sound masking unit. Each of the master units is addressable over the network by the control unit enabling the control unit to program the contour, spectral band, and gain characteristics of the sound masking output signal. The system may also include a remote control unit which provides the capability to tune and adjust each master sound masking unit in situ without requiring physical access through the ceiling installation.
摘要翻译：用于在物理环境中整形环境噪声水平的声音遮蔽系统。声音掩蔽系统包括具有耦合在一起的多个主单元和控制单元的网络和分布式系统。一个或多个主单元可以包括用于再现由主声音屏蔽单元生成的声屏蔽信号的卫星声音屏蔽单元。每个主单元可由控制单元通过网络寻址，使得控制单元能够编程声屏蔽输出信号的轮廓，频谱带和增益特性。该系统还可以包括遥控单元，该遥控单元提供能够在现场调整和调整每个主声音屏蔽单元的能力，而不需要通过天花板安装进行物理访问。

5. 发明授权

US5418858A Method and apparatus for intelligent active and semi-active vibration control 失效
公开(公告)号：US5418858A
公开(公告)日：1995-05-23
申请号：US273377
申请日：1994-07-11
申请人： Rahmat Shoureshi
发明人： Rahmat Shoureshi
IPC分类号： B60G17/018 , B60G17/0195 , B60K5/00 , B60K5/12 , B62D33/06 , F16F15/02 , G10K11/178 , G10K11/16
CPC分类号： B60G17/018 , B60G17/0195 , B60K5/00 , B62D33/0608 , F16F15/02 , G10K11/1786 , B60G2204/16 , B60G2204/18 , B60G2400/102 , B60G2600/182 , B60G2600/184 , B60G2600/1871 , B60G2600/1877 , B60K5/1216 , G10K2210/106 , G10K2210/1282 , G10K2210/129 , G10K2210/1291 , G10K2210/3012 , G10K2210/3024 , G10K2210/3029 , G10K2210/30351 , G10K2210/3036 , G10K2210/3042 , G10K2210/3046 , G10K2210/3211 , G10K2210/3216 , G10K2210/3221 , G10K2210/501 , G10K2210/509
摘要： A generalized minimum variance type of control operates on combined optimal and self-tuning control theorems, and is applicable to the design of active, semi-active, and hybrid vibration control systems. The system operates in a multiple-input/multiple-output manner, so when both noise and vibration are important, e.g. interior of a vehicle, the resulting nulling signal will be based on diminishing both vibrations and noise. The system operates by directly nulling primary vibrations, in an active mode, and/or by developing a variable bandwidth mechanical filter, in a semi-active mode, and applying nulling signals accordingly to the vibration source. Artificial intelligence is incorporated into the system to learn on-line the dynamics of the system, e.g. vehicle modal parameters. This intelligence is used to modify decision making in the system, based on results of past performance, without reprogramming or tuning of the system. The system incorporates digital electronic circuitry to convert acceleration and/or audio signals into proper format for the software logic residing in a microprocessor chip. Synchronizing signal is not needed. Hardware used includes a state of the art high power microprocessor, capable of handling sixteen sensory input signals and generating eight output signals. Controlling noise and vibration control in a vehicle, four audio signals from the driver, passenger, and back seat areas, and accelerometer signals from different seat tracks, the steering column, and the floor pan can be input to the microprocessor. Resulting control signals can be two for adjustable front engine mounts, and six for the adjustable body (cradle) mounts. Software resident in memory includes a first program to perform a modal extraction of vibration and/or noise from the sensors, to perform a minimum variance calculation, then to perform an intelligent control calculation based on recorded past performance and on fuzzy logic compensation. Output signals generated and applied to actuators minimize and/or filter the vibration or noise.

6. 发明授权

US4648111A Self-adaptive echo canceller capable of keeping a degree of cancellation substantially invariable even at a low incoming level 失效
标题翻译：自适应回波消除器能够保持一定程度的消除，即使在低的进入水平也基本上是不变的
公开(公告)号：US4648111A
公开(公告)日：1987-03-03
申请号：US536093
申请日：1983-09-27
申请人： Yoshinori Ito
发明人： Yoshinori Ito
IPC分类号： G10K11/178 , H04B3/23 , H04B3/20
CPC分类号： G10K11/178 , H04B3/23 , G10K2210/30351 , G10K2210/3045 , G10K2210/505
摘要： In a self-adpative echo canceller responsive to a receive-in signal and an echo signal resulting from the receive-in signal, a learning identification technique is implemented so as to exempt a send-out signal from the echo signal by successively varying an amount of modification (.DELTA.h.sub.j ') represented by .beta.eX, where .beta. represents a coefficient; e, a level of the send-out signal; and X, a level of the receive-in signal. A coefficient calculating circuit (28, 30, 35) calculates the coefficient .beta. from the factor and an incoming level (X) of the receive-in signal to determine the amount of modification. The coefficient is accompanied by a modifier given by 2X.sup.2 /(K+X.sup.2), where K represents a constant. The coefficient calculating circuit includes a unit (35) for calculating the modifier. The modifier may be multiplied by various factors of the amount of modification.
摘要翻译：在响应于接收信号和由接收信号产生的回波信号的自适应回波消除器中，实现学习识别技术，以便通过连续地改变数据量从回波信号中免除发出信号由βeX表示的修饰（DELTA hj'），其中β表示系数; e，发送信号的电平; X是接收信号的电平。系数计算电路（28,30,35）从接收信号的因子和输入电平（X）计算系数β，以确定修改量。该系数伴随着由2X2 /（K + X2）给出的修饰符，其中K表示常数。系数计算电路包括用于计算修正器的单元（35）。改性剂可以乘以修饰量的各种因素。

7. 发明授权

US09922635B2 Minimizing nuisance audio in an interior space 有权
公开(公告)号：US09922635B2
公开(公告)日：2018-03-20
申请号：US15085744
申请日：2016-03-30
申请人： Lenovo (Singapore) Pte. Ltd.
发明人： Aaron Michael Stewart , Rod D. Waltermann
IPC分类号： G10K11/178 , H04R29/00 , H04R3/04
CPC分类号： G10K11/178 , G10K11/175 , G10K11/1783 , G10K2210/12 , G10K2210/30351 , G10K2210/3044 , H04R3/04 , H04R29/001
摘要： One embodiment provides a method, including: detecting, using one or more audio capture devices, nuisance audio; receiving, from one or more device sensors, contextual information; determining a mitigating audio signal based on the nuisance audio and contextual information; thereafter, emitting, from one or more audio source devices, mitigating audio into an interior space. Other aspects are described and claimed.

8. 发明授权

US09786265B2 Active airborne noise abatement 有权
公开(公告)号：US09786265B2
公开(公告)日：2017-10-10
申请号：US15237446
申请日：2016-08-15
申请人： Amazon Technologies, Inc.
发明人： Brian C. Beckman , Gur Kimchi
IPC分类号： G10K11/178 , G06N99/00 , B64C39/02 , G01S19/13
CPC分类号： G10K11/178 , B64C39/024 , B64C2201/024 , B64C2201/027 , B64C2201/108 , B64C2220/00 , G01S19/13 , G05D1/101 , G05D19/02 , G05D27/02 , G06N99/005 , G10K11/17823 , G10K11/17853 , G10K11/17873 , G10K2210/1281 , G10K2210/30231 , G10K2210/30351 , G10K2210/3038 , G10K2210/3045
摘要： Noises that are to be emitted by an aerial vehicle during operations may be predicted using one or more machine learning systems, algorithms or techniques. Anti-noises having equal or similar intensities and equal but out-of-phase frequencies may be identified and generated based on the predicted noises, thereby reducing or eliminating the net effect of the noises. The machine learning systems, algorithms or techniques used to predict such noises may be trained using emitted sound pressure levels observed during prior operations of aerial vehicles, as well as environmental conditions, operational characteristics of the aerial vehicles or locations of the aerial vehicles during such prior operations. Anti-noises may be identified and generated based on an overall sound profile of the aerial vehicle, or on individual sounds emitted by the aerial vehicle by discrete sources.

9. 发明申请

US20170287460A1 MINIMIZING NUISANCE AUDIO IN AN INTERIOR SPACE 有权
公开(公告)号：US20170287460A1
公开(公告)日：2017-10-05
申请号：US15085744
申请日：2016-03-30
申请人： Lenovo (Singapore) Pte. Ltd.
发明人： Aaron Michael Stewart , Rod D. Waltermann
IPC分类号： G10K11/178 , H04R3/04 , H04R29/00
CPC分类号： G10K11/178 , G10K11/175 , G10K11/1783 , G10K2210/12 , G10K2210/30351 , G10K2210/3044 , H04R3/04 , H04R29/001
摘要： One embodiment provides a method, including: detecting, using one or more audio capture devices, nuisance audio; receiving, from one or more device sensors, contextual information; determining a mitigating audio signal based on the nuisance audio and contextual information; thereafter, emitting, from one or more audio source devices, mitigating audio into an interior space. Other aspects are described and claimed.

10. 发明授权

US09442496B1 Active airborne noise abatement 有权
标题翻译：主动空降噪声
公开(公告)号：US09442496B1
公开(公告)日：2016-09-13
申请号：US14858270
申请日：2015-09-18
申请人： Amazon Technologies, Inc.
发明人： Brian C. Beckman , Gur Kimchi
IPC分类号： G05D19/02 , B64C39/02 , G10K11/178
CPC分类号： G10K11/178 , B64C39/024 , B64C2201/024 , B64C2201/027 , B64C2201/108 , B64C2220/00 , G01S19/13 , G05D1/101 , G05D19/02 , G05D27/02 , G06N99/005 , G10K11/17823 , G10K11/17853 , G10K11/17873 , G10K2210/1281 , G10K2210/30231 , G10K2210/30351 , G10K2210/3038 , G10K2210/3045
摘要： Noises that are to be emitted by an aerial vehicle during operations may be predicted using one or more machine learning systems, algorithms or techniques. Anti-noises having equal or similar intensities and equal but out-of-phase frequencies may be identified and generated based on the predicted noises, thereby reducing or eliminating the net effect of the noises. The machine learning systems, algorithms or techniques used to predict such noises may be trained using emitted sound pressure levels observed during prior operations of aerial vehicles, as well as environmental conditions, operational characteristics of the aerial vehicles or locations of the aerial vehicles during such prior operations. Anti-noises may be identified and generated based on an overall sound profile of the aerial vehicle, or on individual sounds emitted by the aerial vehicle by discrete sources.
摘要翻译：可以使用一个或多个机器学习系统，算法或技术来预测在操作期间由飞行器发射的噪声。可以基于预测的噪声来识别和产生具有相同或相似的强度和等于或相同的频率的抗噪声，从而减少或消除噪声的净效应。可以使用用于预测这种噪声的机器学习系统，算法或技术来使用在先前的飞行器操作期间观察到的发射声压级，以及环境条件，飞行器的操作特性或飞行器的位置操作。可以基于飞行器的整体声音轮廓或者由离散源发出的飞行器发出的各种声音来识别和产生抗噪声。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式