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1. 发明授权

US09947310B2 Acoustic conversion device for active noise control 有权
公开(公告)号：US09947310B2
公开(公告)日：2018-04-17
申请号：US15128547
申请日：2014-03-26
申请人： PIONEER CORPORATION , Tohoku Pioneer Corporation
发明人： Junichi Iida
IPC分类号： H04R1/02 , G10K11/178
CPC分类号： G10K11/178 , G10K2210/1282 , G10K2210/3212 , G10K2210/3214 , G10K2210/3229 , H04R1/025 , H04R1/028 , H04R5/023 , H04R2499/13
摘要： An acoustic conversion device for an active noise control is provided. The acoustic conversion device can effectively suppress or remove noise by controlling variation in a lowest resonance frequency. A volume of a closed space is smaller than an equivalent compliance air volume of a speaker unit. Therefore, motion of a vibration plate, an edge and a damper is suppressed, it is possible to restrain the edge and the damper from being deteriorated with time, variation in lowest resonance frequency can be suppressed, phase of emitted sound can be less prone to be deviated from opposite phase of noise, and it is possible to effectively suppress or remove noise.

2. 发明申请

US20170174334A1 PIEZOELECTRIC TRANSDUCERS ON PROPELLER BLADES FOR SOUND CONTROL 审中-公开
公开(公告)号：US20170174334A1
公开(公告)日：2017-06-22
申请号：US15189861
申请日：2016-06-22
申请人： Amazon Technologies, Inc.
发明人： Brian C. Beckman , Vedran Coralic , Gur Kimchi
IPC分类号： B64C27/00 , G10K11/178 , B64C39/02
CPC分类号： B64C27/001 , B64C11/00 , B64C11/20 , B64C39/024 , B64C2201/108 , B64C2220/00 , G10K11/178 , G10K11/17883 , G10K2210/121 , G10K2210/1281 , G10K2210/3229
摘要： The present disclosure is directed to controlling, reducing, and/or altering sound generated by an aerial vehicle, such as an unmanned aerial vehicle (“UAV”), while the aerial vehicle is airborne. For example, one or more transducers, such as piezoelectric thin-film transducers, or carbon nanotube transducers may be applied or incorporated into or on the surface of propeller blades that are used to aerially navigate the aerial vehicle. As the propeller blade rotates and generates sound, the transducers may be activated to generate one or more anti-sounds that cancel, reduce, or otherwise modify the sound generated by the rotation of the propeller blade. The anti-sound combines with the sound and causes interference such that the combined, or net-effect, is an overall cancellation, reduction, or other modification of the sound.

3. 发明授权

US09621973B2 Wearable audio device 有权
公开(公告)号：US09621973B2
公开(公告)日：2017-04-11
申请号：US14634012
申请日：2015-02-27
申请人： Samsung Electronics Company, Ltd.
发明人： Mark Stauber , Olivier Bau , Junyeon Cho , Gabriel Reyes
IPC分类号： H04R25/00 , H04R1/02 , H04R3/04 , G10K11/02
CPC分类号： H04R1/02 , B06B1/02 , B06B1/0685 , G10K11/002 , G10K11/02 , G10K2210/1081 , G10K2210/3229 , H04R1/26 , H04R3/005 , H04R3/04 , H04R5/023 , H04R2410/05 , H04R2420/07 , H04R2420/09 , H04R2460/01 , H04R2460/07 , H04R2460/13
摘要： In one embodiment, a device includes at least one transducer configured to vibrate within a first frequency range to generate a signal audible by a wearer of the device. The device includes the first material, which has an acoustic impedance at one or more frequencies within the first frequency range that is substantially similar to an acoustic impedance of the wearer's skin at the one or more frequencies. The device includes a second material that has an acoustic impedance at one or more frequencies within the first frequency range that substantially differs from an acoustic impedance of an environment of the device.

4. 发明申请

US20160217781A1 Methods And Systems For Implementing Bone Conduction-Based Noise Cancellation For Air-Conducted Sound 有权
标题翻译：用于实施基于导电的噪声消除用于空气传导声音的方法和系统
公开(公告)号：US20160217781A1
公开(公告)日：2016-07-28
申请号：US15089958
申请日：2016-04-04
申请人： Google Inc.
发明人： Xuan Zhong , Jianchun Dong
IPC分类号： G10K11/178 , H04R17/00 , H04R1/10 , H04R1/02
CPC分类号： G10K11/178 , G10K11/24 , G10K2210/1081 , G10K2210/1291 , G10K2210/3229 , H04R1/028 , H04R1/10 , H04R17/00 , H04R2460/01 , H04R2460/13
摘要： A wearable computing device can receive, via at least one input transducer, a first audio signal associated with ambient sound from an environment of the device. The device can then process the first audio signal so as to determine a second audio signal that is out of phase with the first audio signal and effective to substantially cancel at least a portion of the first audio signal. The device may then generate a noise-cancelling audio signal based on the second audio signal, based on a third audio signal, and based on one or more wearer-specific parameters, where the third audio signal is representative of a sound to be provided by the device. The device may then cause a bone conduction transducer (BCT) to vibrate so as to provide to an ear a noise-cancelling sound effective to substantially cancel at least a portion of the ambient sound.
摘要翻译：佩戴式计算装置可以经由至少一个输入换能器从装置的环境接收与环境声音相关联的第一音频信号。该设备然后可以处理第一音频信号，以便确定与第一音频信号不同相的第二音频信号，并有效地基本上消除第一音频信号的至少一部分。然后，设备可以基于第三音频信号，并且基于一个或多个佩戴者特定参数，基于第二音频信号生成噪声消除音频信号，其中第三音频信号表示将由装置。然后，装置可以使骨传导换能器（BCT）振动，以向耳朵提供有效地基本上消除至少一部分环境声音的噪声消除声音。

5. 发明申请

US20160008852A1 ELECTROACOUSTIC CONVERSION FILM, ELECTROACOUSTIC CONVERTER, FLEXIBLE DISPLAY, AND PROJECTOR SCREEN 有权
标题翻译：电动转换膜，电动转换器，柔性显示屏和投影仪屏幕
公开(公告)号：US20160008852A1
公开(公告)日：2016-01-14
申请号：US14860944
申请日：2015-09-22
申请人： FUJIFILM Corporation
发明人： Tetsu MIYOSHI
IPC分类号： B06B1/06 , H04R17/02 , G10K11/178 , G03B21/56
CPC分类号： B06B1/0662 , B06B1/0688 , G03B21/56 , G03B31/00 , G10K11/178 , G10K2210/3229 , H01L41/047 , H01L41/0475 , H01L41/0973 , H01L41/183 , H01L41/257 , H01L41/37 , H04R5/02 , H04R7/04 , H04R17/005 , H04R17/025 , H04R2217/03 , H04R2307/025 , H04R2499/15
摘要： The present invention provides an electroacoustic conversion film comprising: a polymeric composite piezoelectric body in which piezoelectric body particles are dispersed in a viscoelastic matrix formed of a polymer material exhibiting viscoelasticity at normal temperature; and two or more electrode pairs, wherein one electrode and the other electrode of each of the electrode pairs are arranged on two opposite main surfaces of the polymeric composite piezoelectric body, respectively, to interpose the polymeric composite piezoelectric body therebetween, and thereby each of the electrode pairs forms an active region.
摘要翻译：本发明提供一种电声转换膜，包括：聚合物复合压电体，其中压电体颗粒分散在由在常温下显示出粘弹性的聚合物材料形成的粘弹性基体中; 和两个或更多个电极对，其中每个电极对的一个电极和另一个电极分别布置在聚合复合压电体的两个相对的主表面上，以将聚合物复合压电体插入其间，由此电极对形成有源区。

6. 发明授权

US07236602B2 Device for actuating a membrane and a vehicle comprising a device for actuating a membrane 有权
标题翻译：用于致动膜和车辆的装置，包括用于致动膜的装置
公开(公告)号：US07236602B2
公开(公告)日：2007-06-26
申请号：US10511738
申请日：2003-04-14
申请人： Mats Gustavsson
发明人： Mats Gustavsson
IPC分类号： H04R25/00
CPC分类号： H04R7/045 , B06B1/0607 , B06B3/02 , B60R11/0223 , B60R2011/0026 , G10K9/12 , G10K9/121 , G10K9/22 , G10K11/178 , G10K2210/102 , G10K2210/1282 , G10K2210/321 , G10K2210/3212 , G10K2210/3214 , G10K2210/3219 , G10K2210/3229 , H04R2440/05 , H04R2499/13
摘要： A device is provided for actuating a membrane arranged in an opening to a space, and a vehicle having such a device. The membrane has a first surface and a second opposite surface, and is limited by an edge area. The device includes a first strip to be attached to the second surface of the membrane in the edge area, and a second strip to be attached to a surface of a frame portion extending around the opening. An exchanging member is arranged between and connecting the first strip and the second strip. An actuating member is arranged to transfer a reciprocating primary movement to the exchanging member converting the primary movement to a reciprocating secondary movement, which has a longer length of stroke than the primary movement and acts on the strips to move towards and away from each other.
摘要翻译：提供了用于致动布置在空间的开口中的膜的装置和具有这种装置的车辆。膜具有第一表面和第二相对表面，并且被边缘区域限制。该装置包括在边缘区域中附接到膜的第二表面的第一条带和附接到围绕开口延伸的框架部分的表面的第二条带。交换构件布置在第一条和第二条之间并连接第一条和第二条。致动构件被布置成将往复运动的初级运动传递到交换构件，其将主运动转换成往复次级运动，该运动具有比主运动更长的行程长度，并且作用在条上以彼此移动和远离。

7. 发明授权

US06778673B1 Tunable active sound absorbers 失效
标题翻译：可调节主动吸音器
公开(公告)号：US06778673B1
公开(公告)日：2004-08-17
申请号：US09419576
申请日：1999-10-18
申请人： Maximilian Hans Hobelsberger
发明人： Maximilian Hans Hobelsberger
IPC分类号： H04R300
CPC分类号： G10K11/172 , G10K11/02 , G10K11/025 , G10K11/04 , G10K11/161 , G10K2210/109 , G10K2210/121 , G10K2210/125 , G10K2210/1281 , G10K2210/3212 , G10K2210/3219 , G10K2210/32271 , G10K2210/32272 , G10K2210/3229 , H04R3/002
摘要： The sound absorber is a combination of an acoustical transformer with an actively simulated acoustical impedance. The acoustical transformer transforms the high active impedance into a low impedance at the mouth of the transformer. The absorber is tuned by changing the active impedance.
摘要翻译：吸声器是具有主动模拟声阻抗的声学变压器的组合。声变压器将变压器口处的高有效阻抗变换为低阻抗。吸收器通过改变有源阻抗进行调谐。

8. 发明授权

US5828760A Non-linear reduced-phase filters for active noise control 失效
标题翻译：用于有源噪声控制的非线性相位滤波器
公开(公告)号：US5828760A
公开(公告)日：1998-10-27
申请号：US672168
申请日：1996-06-26
申请人： Clas A. Jacobson , Duane C. McCormick
发明人： Clas A. Jacobson , Duane C. McCormick
IPC分类号： G10K11/178 , H03B29/00
CPC分类号： G10K11/1782 , G10K11/178 , G10K2210/129 , G10K2210/3026 , G10K2210/30391 , G10K2210/3217 , G10K2210/3229
摘要： An active noise (or vibration) control system having an actuator 24 which provides an acoustic anti-noise signal in response to an drive signal (U), an error sensor 16 which senses the acoustic anti-noise signal from the actuator, senses disturbance noise (d), and provides an error signal (e) indicative of a combination thereof, and a controller 20, responsive to the error signal (e), which provides the drive signal (U) to the actuator 24, is provided with controller compensation 78 having energy states 112 and having non-linear reset logic 130 which temporarily resets the energy states 112 in the filter 78 to zero when the error signal crosses zero, thereby improving the bandwidth of the active noise control system.
摘要翻译：具有响应于驱动信号（U）提供声学抗噪声信号的致动器24的有源噪声（或振动）控制系统，感测来自致动器的声学抗噪声信号的误差传感器16感测干扰噪声（d），并且提供表示其组合的误差信号（e），并且响应于向致动器24提供驱动信号（U）的误差信号（e）的控制器20设置有控制器补偿 78具有能量状态112并且具有非线性复位逻辑130，其在误差信号越过零时临时将滤波器78中的能量状态112复位为零，从而改善有源噪声控制系统的带宽。

9. 发明授权

US5687075A Adaptive control system 失效
标题翻译：自适应控制系统
公开(公告)号：US5687075A
公开(公告)日：1997-11-11
申请号：US416764
申请日：1995-06-02
申请人： Ian MacGregor Stothers
发明人： Ian MacGregor Stothers
IPC分类号： G10K11/178 , G05B13/02 , A61F11/06 , H03B29/00
CPC分类号： G10K11/1786 , G10K11/1784 , G10K2210/1082 , G10K2210/3011 , G10K2210/3018 , G10K2210/30232 , G10K2210/3025 , G10K2210/3045 , G10K2210/3217 , G10K2210/3229
摘要： An adaptive control system for reducing undesired signals comprises sensors (31) to provide signals indicative of the undesired signals, and a processor (36) which processes the first signal to provide a secondary signal for output to sources (37) to interfere with the undesired signals. Sensors (42) are provided to detect the residual signals which are indicative of the interference between the undesired and secondary signals. Within the processor the signals indicative of the undesired signals and the residual signals are transformed into the frequency domain and collated. The outcome of the collation is inverse transformed and the processor adjusts the secondary signal using this inverse transform to reduce the residual signal from the sensors (42).
摘要翻译： PCT No.PCT / GB93 / 02170 Sec。 371日期：1995年6月2日 102（e）1995年6月2日PCT 1993年10月21日PCT公布。出版物WO94 / 09481 日期1994年4月28日用于减少不需要的信号的自适应控制系统包括提供指示不期望信号的信号的传感器（31）和处理器（36），处理器（36）处理第一信号以提供输出到源（37）的辅助信号，以干扰不期望的信号。提供传感器（42）以检测指示不期望信号和辅助信号之间的干扰的残余信号。在处理器内，指示不需要的信号和残余信号的信号被变换到频域并整理。对照的结果被逆变换，并且处理器使用该逆变换来调整辅助信号以减少来自传感器（42）的残留信号。

10. 发明授权

US4480333A Method and apparatus for active sound control 失效
标题翻译：主动声控制的方法和装置
公开(公告)号：US4480333A
公开(公告)日：1984-10-30
申请号：US368095
申请日：1982-04-13
申请人： Colin F. Ross
发明人： Colin F. Ross
IPC分类号： G10K11/178 , H04B15/00
CPC分类号： G10K11/1784 , G10K2210/30351 , G10K2210/3045 , G10K2210/3229 , G10K2210/502
摘要： Sound control systems which employ sound cancellation may deteriorate due to ageing or change of conditions. The system described is contructed to change according to the sound level at a point where cancellation is to be achieved by sound from a loudspeaker driven by modified signals from a microphone which picks up sounds from a noise source. The signals from the microphone pass through a filter circuit having a transfer function which is controlled by a controller. Signals from the point where cancellation is required, and after modification, from the microphone and the filter circuit are employed by the controller to derive a control signal for the filter circuit.
摘要翻译：使用声音消除的声音控制系统可能由于老化或条件的改变而恶化。所描述的系统被构造为根据通过来自麦克风的来自噪声源的麦克风的修改信号驱动的扬声器的声音来实现抵消的点处的声级的变化。来自麦克风的信号通过具有由控制器控制的传递函数的滤波器电路。控制器采用从麦克风和滤波器电路要求取消，修改后的信号，得出滤波电路的控制信号。

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