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18 条记录 (耗时 0.011 秒)

    Active sound damper
    1.
    发明授权
    Active sound damper 失效
    主动减震器

    公开(公告)号：US5677958A

    公开(公告)日：1997-10-14

    申请号：US581600

    申请日：1996-01-05

    申请人： Frank Juergen Lehringer

    发明人： Frank Juergen Lehringer

    IPC分类号： F01N1/00 ,  F01N1/06 ,  G10K11/178 ,  G10K11/16

    CPC分类号： G10K11/1788 ,  F01N1/065 ,  G10K2210/103 ,  G10K2210/12822 ,  G10K2210/3212 ,  G10K2210/3214 ,  G10K2210/3216 ,  H04R9/022

    摘要： An active sound damper for compensating interference noise radiated by an interference noise source through a radiation opening of the interference source. The radiation opening of the interference noise source defines a radiation plane and has a center. The sound damper includes a speaker for radiating compensation sound for reciprocally effecting one of a weakening and a cancelling of the interference noise by interfering with the interference noise, the speaker having a speaker cone and defining a longitudinal axis. The speaker is further adapted to be mounted on the radiation opening such that its longitudinal axis is disposed to transversely intersect the radiation plane at the center of the radiation opening and such that the speaker cone radially surrounds the radiation opening.

    摘要翻译： PCT No.PCT / DE94 / 00723 Sec。 371日期1996年1月5日 102（e）日期1996年1月5日PCT Filed 1994年6月23日PCT公布。 公开号WO95 / 02238 日期1995年1月19日一种用于补偿干扰源通过干扰源的辐射开口辐射的干扰噪声的主动减震器。 干扰噪声源的辐射开口限定辐射平面并具有中心。 声音阻尼器包括用于辐射补偿声音的扬声器，用于通过干扰干扰噪声来相互影响干扰噪声的弱化和抵消之一，扬声器具有扬声器锥并限定纵向轴线。 扬声器还适于安装在辐射开口上，使得其纵向轴线设置成在辐射开口的中心处与辐射平面横向相交，并且使得扬声器锥体径向地包围辐射开口。

    Multi-channel active attenuation system with error signal inputs
    2.
    发明授权
    Multi-channel active attenuation system with error signal inputs 失效
    具有错误信号输入的多通道有源衰减系统

    公开(公告)号：US5216722A

    公开(公告)日：1993-06-01

    申请号：US794115

    申请日：1991-11-15

    申请人： Steven R. Popovich

    发明人： Steven R. Popovich

    IPC分类号： G10K11/178

    CPC分类号： G10K11/1786 ,  G10K2210/103 ,  G10K2210/3011 ,  G10K2210/3019 ,  G10K2210/3046 ,  G10K2210/3049 ,  G10K2210/3214

    摘要： A multi-channel active acoustic attenuation system for attenuating a correlated input acoustic wave has one or more output transducers introducing one or more respective canceling acoustic waves to attenuate the input acoustic wave and yield an attenuated output acoustic wave, one or more error transducers sensing the output acoustic wave and providing one or more error signals, and a plurality of adaptive filter channel models. Each channel model has a model input from a respective error transducer. One or more of the channel models also has a model input from at least one of the remaining channel models. Each channel model has an error input from one or more of the error transducers. Each channel model has a model output outputting a correction signal to a respective output transducer to introduce the respective canceling acoustic wave. The correction signal from one or more of the model outputs is also input to the model input of one or more of the remaining channel models.

    Sound shielding by means of sound
    4.
    发明授权
    Sound shielding by means of sound 失效
    声音的声音屏蔽

    公开(公告)号：US3602331A

    公开(公告)日：1971-08-31

    申请号：US3602331D

    申请日：1970-04-10

    申请人： MESSERSCHMITT BOELKOW BLOHM

    发明人： BSCHORR OSKAR

    IPC分类号： E01F8/00 ,  G10K11/178 ,  H04M1/19 ,  F01N1/06

    CPC分类号： E01F8/0094 ,  G10K11/178 ,  G10K2210/103 ,  G10K2210/12 ,  G10K2210/3212 ,  G10K2210/3216 ,  G10K2210/3229 ,  G10K2210/32291

    摘要： An air permeable sound grating for sound shielding. The grating consists of, or includes, volume changing elements which are controlled by properly positioned means, such as a microphone orientated toward the noise source, to effect change in volume of an adjacent noise transmitting medium, such as air, to effect such a anticyclic change in volume as to cause interference attenuation of the sound at the side of the grating facing away from the noise source. Such volume changing elements are spaced apart a distance less than the wavelength of the highest frequency sound to be shielded and may comprise a variety of means such as spaced heating wires, conductive coating upon a thermal and electrically insulating base, a closed capsule with membrane surfaces having vibration generating means operatively associated with said membrane, radiation generating means for discharging medium heating radiation of energy into the sound transmitting medium together with controls and reflectors for directing the volume changing means or energy to the desired zone to be shielded.

    Active device for attenuating the sound intensity
    6.
    发明授权
    Active device for attenuating the sound intensity 失效
    用于衰减声音强度的有源设备

    公开(公告)号：US5834647A

    公开(公告)日：1998-11-10

    申请号：US817789

    申请日：1997-04-18

    申请人： Lionel Gaudriot ,  Jacques Martinat

    发明人： Lionel Gaudriot ,  Jacques Martinat

    IPC分类号： G10K11/178 ,  G10K11/16

    CPC分类号： G10K11/1788 ,  G10K2210/10 ,  G10K2210/103 ,  G10K2210/12 ,  G10K2210/124 ,  G10K2210/3046 ,  G10K2210/3217 ,  G10K2210/512

    摘要： A device for attenuating noises generated by moving sources includes a set of arranged electroacoustic sources which emit an opposite antinoise wave in response to an incident wave as sensed and processed. The electroacoustic sources are arranged to preferably emit a synchronous antinoise wave having a radius of curvature approximating that of the incident wave.

    摘要翻译： PCT No.PCT / FR95 / 01318 Sec。 371日期1997年4月18日 102（e）日期1997年4月18日PCT提交1995年10月10日PCT公布。 第WO96 / 13029号公报 日期1996年5月2日用于衰减由移动源产生的噪声的装置包括一组布置的电声源，其响应于感测和处理的入射波发射相反的抗噪声波。 电声源被布置为优选地发射具有接近入射波的曲率半径的同步波音波。

    Processes and devices for protecting a given volume, preferably arranged inside a room, from outside noises
    8.
    发明授权
    Processes and devices for protecting a given volume, preferably arranged inside a room, from outside noises 失效
    用于保护给定体积的方法和装置，优选地布置在房间内，从外部噪声

    公开(公告)号：US5438624A

    公开(公告)日：1995-08-01

    申请号：US163508

    申请日：1993-12-09

    申请人： Jacques Lewiner ,  Mathias Fink

    发明人： Jacques Lewiner ,  Mathias Fink

    IPC分类号： E04B1/99 ,  G10K11/16 ,  G10K11/178 ,  G10K11/34

    CPC分类号： G10K11/346 ,  G10K11/1788 ,  G10K2210/103 ,  G10K2210/119 ,  G10K2210/12 ,  G10K2210/30232 ,  G10K2210/3041 ,  G10K2210/3046 ,  G10K2210/3047

    摘要： To protect a volume (2) arranged inside a room (3) in regard to outside noises E, use is made of an array of acoustic sensors (11.sub.j) receiving the noise E and arranged a distance A from the volume and of an array of acoustic sources (15.sub.k) arranged a distance B less than A from the volume and signals S are applied to these sources, these signals being summations of the double convolution products of the function E.sub.j (t) with two functions f.sub.ij (t) and g.sub.ik (-t) which are directly deducible from the impulse responses gathered, on the one hand, at the sensors (11.sub.j) from pulses emitted by the sources (10.sub.i) carried by a fictitious barrier (6) delimiting the volume and, on the other hand, at sensors (12.sub.i) stationed at the same places as these latter sources (10.sub.i), from pulses emitted by the above sources (15.sub.k).

    摘要翻译： 为了保护关于外部噪声E布置在房间（3）内的体积（2），使用接收噪声E的声学传感器阵列（11j），并且从体积和阵列中排列距离A 声源（15k）从体积中排列了小于A的距离B，并将信号S施加到这些源，这些信号是函数Ej（t）与两个函数fij（t）和gik（t）的双卷积乘积的和， -t），其一方面从由限定容积的虚构屏障（6）承载的源（10i）发射的脉冲的传感器（11j）收集的脉冲响应直接推导出，另一方面 ，位于与这些源（10i）相同的位置的传感器（12i）上，由上述源（15k）发射的脉冲。