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    A DAMPING AND ACTUATING APPARATUS COMPRISING MAGNETOSTRICTIVE MATERIAL, A VIBRATION DAMPENING DEVICE AND USE OF SAID APPARATUS
    1.
    发明申请
    A DAMPING AND ACTUATING APPARATUS COMPRISING MAGNETOSTRICTIVE MATERIAL, A VIBRATION DAMPENING DEVICE AND USE OF SAID APPARATUS 审中-公开
    包含磁阻材料的阻尼和动作装置，振动阻尼装置和使用装置

    公开(公告)号：WO2004078367A1

    公开(公告)日：2004-09-16

    申请号：PCT/FI2004/000118

    申请日：2004-03-03

    Applicant: ADAPTIVE MATERIALS TECHNOLOGY OY ,  ULLAKKO, Kari ,  TELLINEN, Juhani

    Inventor： ULLAKKO, Kari ,  TELLINEN, Juhani

    IPC: B06B1/08

    CPC classification number: F16F15/005 ,  B06B1/045 ,  B06B2201/58 ,  B06B2201/70 ,  G10K11/16 ,  G10K11/178 ,  G10K2210/10 ,  G10K2210/116 ,  G10K2210/121 ,  G10K2210/321 ,  G10K2210/32121 ,  G10K2210/3223 ,  G10K2210/3224 ,  G10K2210/3228 ,  G10K2210/3229 ,  G10K2210/507 ,  G10K2210/509 ,  H01L41/12

    Abstract: The invention relates to devices that produce displacements and/or forces (defined as actuators), when a magnetic field source(s) is (are) placed in such a way that the resulting magnetic field is of suitable strength and orientation in relation to the actuating element made from a Magneto-Mechanical Adaptive (MMA) material, so as to produce the desired displacement of the MMA element; or to devices that dampen mechanical vibrations by absorbing the vibration energy into an MMA element and/or by converting the vibration energy into electric power in the device and/or senses displacement, velocity or acceleration. The electric energy can be dissipated to heat or led out from the device. In the latter case, the device works as a power generator. The principle of using the devices as sensors is also described. The MMA material here is defined as a material whose dimensions change when a magnetic field or stress is applied to it, based on twin boundary or austenite-martensite phase boundary motion or magnetostriction.

    Abstract translation: 本发明涉及产生位移和/或力（定义为致动器）的装置，当磁场源被放置成使得所得到的磁场相对于 由MMA材料制成的致动元件，以便产生MMA元件的期望位移; 或通过将振动能量吸收到MMA元件中和/或通过将振动能量转换成装置中的电力和/或感测位移，速度或加速度来衰减机械振动的装置。 电能可以消散以加热或从设备引出。 在后一种情况下，该装置用作发电机。 还描述了将装置用作传感器的原理。 这里的MMA材料被定义为基于双边界或奥氏体 - 马氏体相边界运动或磁致伸缩而施加磁场或应力的尺寸变化的材料。

    BANDLIMITING ANTI-NOISE IN PERSONAL AUDIO DEVICES HAVING ADAPTIVE NOISE CANCELLATION (ANC)
    2.
    发明申请
    BANDLIMITING ANTI-NOISE IN PERSONAL AUDIO DEVICES HAVING ADAPTIVE NOISE CANCELLATION (ANC) 审中-公开
    在具有自适应噪声消除（ANC）的个人音频设备中绑定防噪声

    公开(公告)号：WO2012166507A2

    公开(公告)日：2012-12-06

    申请号：PCT/US2012/039314

    申请日：2012-05-24

    Applicant: CIRRUS LOGIC, INC.

    Inventor： KWATRA, Nitin ,  ABDOLLAHZADEH MILANI, Ali ,  ALDERSON, Jeffrey

    IPC: G10K11/178

    CPC classification number: G10K11/178 ,  G10K2210/108 ,  G10K2210/3012 ,  G10K2210/3017 ,  G10K2210/30231 ,  G10K2210/3028 ,  G10K2210/30391 ,  G10K2210/3226 ,  G10K2210/507 ,  G10K2210/508 ,  G10K2210/511 ,  G10K2210/512 ,  G10L21/0208 ,  G10L21/0364 ,  H04R1/1083

    Abstract: A personal audio device, such as a wireless telephone, includes noise canceling circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone is provided proximate the speaker to measure the output of the transducer in order to control the adaptation of the anti-noise signal and to estimate an electro-acoustical path from the noise canceling circuit through the transducer. The anti-noise signal is adaptively generated to minimize the ambient audio sounds at the error microphone. A processing circuit that performs the adaptive noise canceling (ANC) function also filters one or both of the reference and/or error microphone signals, to bias the adaptation of the adaptive filter in one or more frequency regions to alter a degree of the minimization of the ambient audio sounds at the error microphone.

    Abstract translation: 诸如无线电话的个人音频设备包括噪声消除电路，其自适应地从参考麦克风信号产生抗噪声信号，并将抗噪声信号注入到扬声器或其他换能器输出中以引起环境音频声音的消除。 在扬声器附近提供误差麦克风以测量换能器的输出，以便控制抗噪声信号的适应性，并估计从噪声消除电路通过换能器的电声路径。 自适应地产生抗噪声信号以最小化误差麦克风处的环境音频声音。 执行自适应噪声消除（ANC）功能的处理电路还对一个或两个参考和/或误差麦克风信号进行滤波，以将自适应滤波器的自适应偏置在一个或多个频率区域中，以改变最小化的程度 错误麦克风处的环境声音发出声音。

    ACTIVE NOISE CONTROL IN A DUCT WITH HIGHLY TURBULENT AIRFLOW
    3.
    发明申请
    ACTIVE NOISE CONTROL IN A DUCT WITH HIGHLY TURBULENT AIRFLOW 审中-公开
    具有高度涡轮机气流的主动噪声控制

    公开(公告)号：WO1996010247A1

    公开(公告)日：1996-04-04

    申请号：PCT/US1995012244

    申请日：1995-09-25

    Applicant: THE BOEING COMPANY

    Inventor： THE BOEING COMPANY ,  CHRISTENSEN, Terry, N.

    IPC: G10K11/178

    CPC classification number: G10K11/178 ,  G10K2210/1082 ,  G10K2210/112 ,  G10K2210/1281 ,  G10K2210/507

    Abstract: A system for providing active noise control for turbulent airflow in a duct (18) utilizing flow straightening (20) upstream of bullet shaped microphones (12, 14) coupled to the noise control electronics (10) thereby improving noise coherence between the input (12) and error microphones (14) and achieving noise reduction.

    Abstract translation: 一种系统，用于通过耦合到噪声控制电路（10）的子弹形麦克风（12,14）上游的流动矫直（20），在管道（18）中为湍流气流提供主动噪声控制，从而改善输入（12）之间的噪声相干性 ）和误差麦克风（14），实现降噪。

    ACOUSTIC DETECTION IN PROCESS ENVIRONMENTS
    4.
    发明申请
    ACOUSTIC DETECTION IN PROCESS ENVIRONMENTS 审中-公开
    过程环境中的声学检测

    公开(公告)号：WO2016048438A2

    公开(公告)日：2016-03-31

    申请号：PCT/US2015/041087

    申请日：2015-07-20

    Applicant: ROSEMOUNT INC.

    Inventor： ROBINSON, Cory, Michael ,  PELUSO, Marcos Antonio, Vieira ,  SCHNAARE, Theodore, Henry ,  LINDSEY, Ryan, Thomas ,  FAULKNER, Lynn, LeRoy

    IPC: G01N29/14

    CPC classification number: G01N29/11 ,  G01N29/14 ,  G01N29/32 ,  G01N29/4427 ,  G01N2291/015 ,  G05B23/0221 ,  G10K11/161 ,  G10K11/178 ,  G10K11/17821 ,  G10K11/17861 ,  G10K2210/112 ,  G10K2210/30231 ,  G10K2210/507

    Abstract: An acoustic measurement system 300 for an industrial process asset 114 includes a process measurement device 102 providing a value representative of an acoustic signal near the industrial process asset 114 based in part on a signal from an acoustic sensor 104 positioned near the industrial process asset 114. A second acoustic sensor 316 provides an acoustic value and a noise reduction component 324 uses the acoustic value from the second acoustic sensor 316 to affect the value provided by the process measurement device 102 so that the value provided by the process measurement device 102 is more representative of an acoustic signal generated by the industrial process asset 114.

    Abstract translation: 用于工业过程资产114的声学测量系统300包括过程测量设备102，其部分地基于来自位于工业过程资产114附近的声学传感器104的信号，提供代表工业过程资产114附近的声学信号的值。 第二声传感器316提供声值，并且降噪部件324使用来自第二声传感器316的声值来影响由过程测量装置102提供的值，使得由过程测量装置102提供的值更具代表性 由工业过程资产114产生的声信号。

    BANDLIMITING ANTI-NOISE IN PERSONAL AUDIO DEVICES HAVING ADAPTIVE NOISE CANCELLATION (ANC)
    5.
    发明申请
    BANDLIMITING ANTI-NOISE IN PERSONAL AUDIO DEVICES HAVING ADAPTIVE NOISE CANCELLATION (ANC) 审中-公开
    在具有自适应噪声消除（ANC）的个人音频设备中绑定防噪声

    公开(公告)号：WO2012166507A3

    公开(公告)日：2013-05-16

    申请号：PCT/US2012039314

    申请日：2012-05-24

    Applicant: CIRRUS LOGIC INC

    Inventor： KWATRA NITIN ,  ABDOLLAHZADEH MILANI ALI ,  ALDERSON JEFFREY

    IPC: G10K11/178

    CPC classification number: G10K11/1784 ,  G10K11/178 ,  G10K2210/108 ,  G10K2210/3017 ,  G10K2210/3028 ,  G10K2210/507 ,  G10K2210/508 ,  G10K2210/511 ,  G10K2210/512 ,  G10L21/0208 ,  G10L21/0364

    Abstract: A personal audio device, such as a wireless telephone, includes noise canceling circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone is provided proximate the speaker to measure the output of the transducer in order to control the adaptation of the anti-noise signal and to estimate an electro-acoustical path from the noise canceling circuit through the transducer. The anti-noise signal is adaptively generated to minimize the ambient audio sounds at the error microphone. A processing circuit that performs the adaptive noise canceling (ANC) function also filters one or both of the reference and/or error microphone signals, to bias the adaptation of the adaptive filter in one or more frequency regions to alter a degree of the minimization of the ambient audio sounds at the error microphone.

    Abstract translation: 诸如无线电话的个人音频设备包括噪声消除电路，其自适应地从参考麦克风信号产生抗噪声信号，并将抗噪声信号注入到扬声器或其他换能器输出中以引起环境音频声音的消除。 在扬声器附近提供误差麦克风以测量换能器的输出，以便控制抗噪声信号的适应性，并估计从噪声消除电路通过换能器的电声路径。 自适应地产生抗噪声信号以最小化误差麦克风处的环境音频声音。 执行自适应噪声消除（ANC）功能的处理电路还对一个或两个参考和/或误差麦克风信号进行滤波，以将自适应滤波器的自适应偏置在一个或多个频率区域中，以改变最小化的程度 错误麦克风处的环境声音发出声音。

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