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1. 发明授权

US06792907B1 Helmholtz resonator 有权
标题翻译：亥姆霍兹共振器
公开(公告)号：US06792907B1
公开(公告)日：2004-09-21
申请号：US10378767
申请日：2003-03-04
申请人： John D. Kostun , Lakhi N. Goenka , David J. Moenssen , Christopher E. Shaw
发明人： John D. Kostun , Lakhi N. Goenka , David J. Moenssen , Christopher E. Shaw
IPC分类号： F02M3510
CPC分类号： F01N1/023 , F01N1/02 , F01N1/065 , G10K2210/101 , G10K2210/1282 , G10K2210/3027 , G10K2210/3216 , G10K2210/32271 , G10K2210/32272
摘要： A continuously variable Helmholtz resonator for a vehicle air intake system having a vibratory input to the resonator wall to dynamically adjust the cancellation frequency for time-varying acoustical signals, and at least one of mean resonator volume control, mean resonator neck length control, and mean resonator neck diameter control whereby control of both the dynamic and the mean properties of the resonator provides a wide-tuning spectrum and facilitates canceling of time-varying acoustical signals.
摘要翻译：一种用于车辆进气系统的连续可变的亥姆霍兹共振器，其具有到谐振器壁的振动输入以动态地调节用于时变声学信号的抵消频率，以及平均谐振器体积控制，平均谐振器颈部长度控制和平均值谐振器颈部直径控制，由此谐振器的动态特性和平均特性的控制提供了宽调谐频谱并且有助于消除时变声学信号。

2. 发明申请

US20040173175A1 HELMHOLTZ RESONATOR 有权
标题翻译： HELMHOLTZ谐振器
公开(公告)号：US20040173175A1
公开(公告)日：2004-09-09
申请号：US10378767
申请日：2003-03-04
发明人： John D. Kostun , Lakhi N. Goenka , David J. Moenssen , Christopher E. Shaw
IPC分类号： F02M035/10
CPC分类号： F01N1/023 , F01N1/02 , F01N1/065 , G10K2210/101 , G10K2210/1282 , G10K2210/3027 , G10K2210/3216 , G10K2210/32271 , G10K2210/32272
摘要： A continuously variable Helmholtz resonator for a vehicle air intake system having a vibratory input to the resonator wall to dynamically adjust the cancellation frequency for time-varying acoustical signals, and at least one of mean resonator volume control, mean resonator neck length control, and mean resonator neck diameter control whereby control of both the dynamic and the mean properties of the resonator provides a wide tuning spectrum and facilitates canceling of time-varying acoustical signals.
摘要翻译：一种用于车辆进气系统的连续可变的亥姆霍兹共振器，其具有到谐振器壁的振动输入以动态地调节用于时变声学信号的抵消频率，以及平均谐振器体积控制，平均谐振器颈部长度控制和平均值谐振器颈部直径控制，由此对谐振器的动态特性和平均特性的控制提供宽的调谐频谱并且有助于消除时变声学信号。

3. 发明授权

US5828759A System and method for reducing engine noise 失效
标题翻译：减少发动机噪音的系统和方法
公开(公告)号：US5828759A
公开(公告)日：1998-10-27
申请号：US565738
申请日：1995-11-30
申请人： Gary Everingham
发明人： Gary Everingham
IPC分类号： F02M35/12 , G10K11/16 , G10K11/178 , H03B29/00 , A61F11/06
CPC分类号： F02M35/125 , G10K11/1788 , G10K2210/112 , G10K2210/128 , G10K2210/12822 , G10K2210/3214 , G10K2210/3219 , G10K2210/32272 , G10K2210/509
摘要： A system and method for reducing noise from an internal combustion engine using a duct housing receiving induction air flow to the engine. A space is defined within the duct housing surrounding a speaker enclosure associated with a speaker facing an open space upstream of the annular space. A sound transducer at the axial location where the annular space opens into the open space generates electrical signals corresponding to engine noise propagating through the air induction ducting. The signals are amplified and phase shifted driving the speaker to output cancelling noises or sounds so as to at least reduce engine noise from the annular space. The speaker enclosure length is set to enhance speaker performance in selected frequency bands of engine noise.
摘要翻译：一种用于使用容纳感应空气流到发动机的管道壳体来减少来自内燃机的噪声的系统和方法。围绕与面向环形空间上游的开放空间的扬声器相关联的扬声器外壳的导管壳体内限定空间。在环形空间通向开放空间的轴向位置处的声换能器产生对应于通过空气感应管道传播的发动机噪声的电信号。信号被放大并相移驱动扬声器以输出消除噪声或声音，以便至少降低来自环形空间的发动机噪声。设置扬声器外壳长度以增强发动机噪声的选定频带中的扬声器性能。

4. 发明授权

US5319165A Dual bandpass secondary source 失效
标题翻译：双通道二次电源
公开(公告)号：US5319165A
公开(公告)日：1994-06-07
申请号：US862884
申请日：1992-04-03
申请人： Earl R. Geddes
发明人： Earl R. Geddes
IPC分类号： F01N1/06 , G10K11/178 , H04R1/22 , H04R1/40
CPC分类号： H04R1/227 , F01N1/065 , G10K11/1788 , H04R1/403 , G10K2210/1053 , G10K2210/112 , G10K2210/12822 , G10K2210/3045 , G10K2210/3214 , G10K2210/3227 , G10K2210/32272 , G10K2210/3229
摘要： An active muffler for use in motor vehicles comprises a sensor, an electronic control responsive to the signal generated by the sensor for producing a drive signal delivered to a transducer which emits cancellation pulses phased 180.degree. from the sound pressure pulses passing through a conduit, where both front and rear sides of the transducer are acoustically coupled to the conduit to improve the efficiency of the transducer operation. Preferably, the acoustic coupling comprises an enclosed chamber including a port for communicating with the conduit which can be tuned to resonate at predetermined frequencies. When both sides of the transducer are so coupled to the conduit, the transducer has increased efficiency over a broad band of frequencies, and the frequency band can be broadened at the low end as required to accommodate the frequencies generated by a source of noise. A tandem transducer mounting arrangement according to the present invention reduces vibration of the housing. The system is particularly suitable for use in adapting noise cancellation techniques to replace passive mufflers on motor vehicles.
摘要翻译：用于机动车辆的主动消声器包括传感器，响应于由传感器产生的信号的电子控制器，用于产生传送到换能器的驱动信号，该换能器发出与通过导管的声压脉冲相位180°的消除脉冲，其中换能器的前侧和后侧都声学耦合到导管，以提高换能器运行的效率。优选地，声耦合包括封闭室，其包括用于与导管连通的端口，该端口可被调谐以以预定频率谐振。当换能器的两侧如此耦合到导管时，换能器在宽频带上提高了效率，并且根据需要可以在低端扩展频带以适应由噪声源产生的频率。根据本发明的串联传感器安装装置减少了壳体的振动。该系统特别适用于适应噪声消除技术以取代机动车辆上的被动消声器。

5. 发明授权

US5257316A Acoustic conductance and silencer utilizing same 失效
标题翻译：声导体和消音器利用它
公开(公告)号：US5257316A
公开(公告)日：1993-10-26
申请号：US782098
申请日：1991-10-24
申请人： Hiroaki Takeyama , Masao Taki , Takuji Mori
发明人： Hiroaki Takeyama , Masao Taki , Takuji Mori
IPC分类号： F16L55/033 , G10K11/178 , H03B29/00
CPC分类号： F16L55/0333 , G10K11/1788 , G10K2210/101 , G10K2210/112 , G10K2210/12822 , G10K2210/32272
摘要： An acoustic conductance is formed with oscillatory planes parallel to a duct and disposed on an identical circumference of the duct along a plane intersecting at right angles the duct so that the total area of the oscillatory planes will be substantially more than twice as large as a sectional area of the duct. The acoustic conductance is thereby made less affective on a fluid and provides a pertinent disposition of the acoustic conductance.

6. 发明授权

US5229556A Internal ported band pass enclosure for sound cancellation 失效
标题翻译：内置带通带外壳，用于取消声音
公开(公告)号：US5229556A
公开(公告)日：1993-07-20
申请号：US894888
申请日：1992-06-08
申请人： Earl R. Geddes
发明人： Earl R. Geddes
IPC分类号： F01N1/00 , F01N1/06 , G10K11/178
CPC分类号： F01N1/065 , G10K11/1788 , G10K2210/1053 , G10K2210/112 , G10K2210/12822 , G10K2210/3045 , G10K2210/3214 , G10K2210/32272 , G10K2210/3229
摘要： A transducer arrangement for active noise cancellation in conduits, for example, in motor vehicles where an electronic control produces a drive signal for a transducer that emits cancellation pulses phased 180.degree. from the sound pressure pulses passing through an exhaust conduit, where both front and rear sides of the transducer are acoustically coupled to improve the efficiency of the transducer operation. Preferably, the acoustic coupling comprises an enclosed chamber partitioned to expose a first transducer side to a chamber portion and a second transducer side to a second chamber portion. A first port couples one of the chambers to the other and a second port couples one of the chambers to the conduit. Each port for communicating with the conduit can be tuned to resonate at predetermined frequencies. When both sides of the transducer are so coupled to the conduit, the transducer has increased efficiency over a band of frequencies, to accommodate the frequencies generated by a source of noise while limiting access of fluid or heat in the conduit to the transducer. A tandem transducer mounting arrangement according to the present invention reduces vibration of the housing. The system is particularly suitable for use in adapting noise cancellation techniques to replace or combine with passive mufflers on motor vehicles.
摘要翻译：一种换能器装置，用于例如在机动车辆中的主动噪声消除中，其中电子控制器产生用于发射与通过排气管道的声压脉冲相位180°的消除脉冲的驱动信号，其中前后换能器的侧面被声学耦合以提高换能器操作的效率。优选地，声学耦合包括被分隔以将第一换能器侧暴露于腔室部分和将第二换能器侧暴露于第二腔室部分的封闭腔室。第一端口将其中一个室耦合到另一个室，而第二端口将其中一个室耦合到导管。用于与管道通信的每个端口可以被调谐以以预定频率谐振。当换能器的两侧如此耦合到导管时，换能器在频带上提高了效率，以适应由噪声源产生的频率，同时限制导管中的流体或热量传递给换能器。根据本发明的串联传感器安装装置减少了壳体的振动。该系统特别适用于适应噪声消除技术，以取代或与机动车辆上的被动消声器相结合。

7. 发明授权

US4750523A Active attenuator and method 失效
标题翻译：有源衰减器和方法
公开(公告)号：US4750523A
公开(公告)日：1988-06-14
申请号：US114334
申请日：1987-10-30
申请人： Jere W. Crouse
发明人： Jere W. Crouse
IPC分类号： F16L55/04 , F17D1/20 , G10K11/16 , G10K11/178
CPC分类号： F17D1/20 , F16L55/04 , G10K2210/32272 , Y10T137/0318 , Y10T137/0396
摘要： An active attenuation system is provided for attenuating the pressure pulses in a liquid flowing in a pipe. The system includes an actuator for introducing nulling pressure pulses into the pipeline having the same frequency, but phase reversed to provide opposite amplitude of the pressure pulses to be attenuated. A plurality of pressure sensors are disposed in the pipe to sense the pressure pulses to be attenuated and these sensors are connected to a pressure transducer amplifier system which, in turn, is electrically connected to a control monitor which adaptively models the responses and continuously adjusts its output to a power amplifier which, in turn, signals the actuator to produce nulling pulses at the desired frequency and amplitude to attenuate the pressure pulses at a desired location, i.e. headbox or pipeline termination, in the liquid flowing through the pipe.
摘要翻译：提供了一种主动衰减系统，用于衰减在管道中流动的液体中的压力脉冲。该系统包括用于将零压力脉冲引入到具有相同频率的管道中的致动器，但是相反相反以提供要衰减的压力脉冲的相反幅度。多个压力传感器设置在管道中以感测要衰减的压力脉冲，并且这些传感器连接到压力传感器放大器系统，该压力传感器放大器系统又电连接到控制监视器，该控制监视器对响应进行自适应建模并连续调整其输出到功率放大器，该功率放大器又传递致动器以产生所需频率和幅度的归零脉冲，以便在流过管道的液体中的期望位置，即流浆箱或管道终端处衰减压力脉冲。

8. 发明授权

US09628925B2 Ear canal earpiece and earmold unit for an earpiece 有权
公开(公告)号：US09628925B2
公开(公告)日：2017-04-18
申请号：US14782143
申请日：2014-04-02
申请人： Sennheiser electronic GmbH & Co. KG
发明人： Heinz Epping , André Michaelis
IPC分类号： H04R25/00 , H04R1/10 , H04R1/28 , G10K11/00 , G10K11/22
CPC分类号： H04R25/652 , G10K11/002 , G10K11/22 , G10K2210/32272 , H04R1/1016 , H04R1/2873
摘要： An ear canal earpiece comprising an electroacoustic sound transducer, a first sound guide unit for guiding the sound from the electroacoustic sound transducer, a second sound guide unit for prolonging the first sound guide unit, a third sound guide unit whose outside contour is matched to an inside contour of an ear canal of a user and which surrounds the second sound guide unit, and a sound wall in the region of the second sound guide unit, wherein the sound wall extends between the second and third sound guide units.

9. 发明授权

US5598479A Device for reducing tire/road surface noise 失效
标题翻译：减少轮胎/路面噪音的装置
公开(公告)号：US5598479A
公开(公告)日：1997-01-28
申请号：US381411
申请日：1995-01-30
申请人： Thomas Dodt , Frank Gauterin , Thomas Schulze , Geert Roik , Heinrich Huinink
发明人： Thomas Dodt , Frank Gauterin , Thomas Schulze , Geert Roik , Heinrich Huinink
IPC分类号： B60C19/00 , G10K11/178 , G10K11/16
CPC分类号： G10K11/172 , B60C19/002 , G10K2210/101 , G10K2210/121 , G10K2210/12821 , G10K2210/3212 , G10K2210/32272
摘要： A device for reducing certain sound ranges of tire/road surface noise of a motor vehicle includes sound absorbers in the form of resonators positioned at the inner wall of a wheel well of the vehicle in the area of sound projection of the tire/road surface noise. The device has an electronic control device for receiving a signal preferably derived from an ABS system in the form of the wheel rpm. The control device adjusts the resonators according to the number of tread blocks of the tire, the sound emission characteristics, and the wheel rpm. In another embodiment the electronic control device is supplied with signals received from a sound receiver that records the course over time of the sound pressure. The control device adjusts the resonators such that the measured sound pressure signal is minimized. In another alternative the device has a data processing unit including an electronic control device. The control device is supplied with a signal from sound receiving devices that record the course over time of the sound pressure. The data processing unit together with an adjusting device adjusts the resonators such that the measured sound pressure signal for selected frequency ranges is minimized.
摘要翻译：用于减少机动车辆的轮胎/路面噪声的某些声音范围的装置包括在轮胎/路面噪声的声音投影区域中设置在车辆的车轮井的内壁处的谐振器形式的吸声器。该装置具有电子控制装置，用于接收以轮转速度形式优选地从ABS系统导出的信号。控制装置根据轮胎胎面花纹块的数量，声音发射特性和车轮转速来调节谐振器。在另一个实施例中，电子控制装置被提供有从声音接收器接收的信号，该声音接收器记录声压随时间的过程。控制装置调节谐振器使测得的声压信号最小化。在另一替代方案中，该装置具有包括电子控制装置的数据处理单元。控制装置被提供有来自声音接收装置的信号，其记录声压随时间的过程。数据处理单元与调节装置一起调节谐振器，使得所选频率范围的测量声压信号最小化。

10. 发明授权

US5457749A Electronic muffler 失效
标题翻译：电子消声器
公开(公告)号：US5457749A
公开(公告)日：1995-10-10
申请号：US172506
申请日：1993-12-22
申请人： John A. Cain , Dennis H. Barnes , David A. Dye
发明人： John A. Cain , Dennis H. Barnes , David A. Dye
IPC分类号： F01N1/06 , F01N1/20 , F01N1/22 , H03B29/00
CPC分类号： F01N1/22 , F01N1/065 , F01N1/20 , G10K2210/32272
摘要： An electronic muffling device is disclosed for suppressing the noise emitted by an outlet of an exhaust pipe of an engine. The device comprises a housing having an outlet and a plurality of audio transducers. The transducers supply anti-noise to cancel detected unwanted noise. A microphone appropriately positioned to detect residual noise is coupled to a cancellation signal generator, which controls the anti-noise generated by the transducers. Anti-noise and unwanted engine noise propagate through a front volume within the housing so that exhaust gases are transmitted through the housing, but engine noise is canceled before leaving the housing. Exhaust gas may be transmitted into the housing, or may be passed through the housing without leaving the exhaust pipe. In either embodiment, engine noise enters the front volume and is canceled.
摘要翻译：公开了一种用于抑制由发动机的排气管的出口发出的噪声的电子消声装置。该装置包括具有出口和多个音频换能器的壳体。传感器提供抗噪声以消除检测到的不必要的噪声。适于定位以检测残余噪声的麦克风耦合到消除信号发生器，其消除由换能器产生的抗噪声。防噪声和不需要的发动机噪声通过壳体内的前部音量传播，使得废气通过壳体传播，但在离开壳体之前取消了发动机噪音。废气可以传送到壳体中，或者可以通过壳体而不离开排气管。在任一实施例中，发动机噪声进入前部体积并被取消。

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