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    NOISE AND VIBRATION SENSING
    7.
    发明公开
    NOISE AND VIBRATION SENSING 审中-公开
    RAUSCH- UND VIBRATIONSERFASSUNG

    公开(公告)号：EP3147896A1

    公开(公告)日：2017-03-29

    申请号：EP15186882.5

    申请日：2015-09-25

    Applicant: Harman Becker Automotive Systems GmbH

    Inventor： PFAFFINGER, Gerhard

    IPC: G10K11/178

    CPC classification number: G10K11/178 ,  G10K11/17823 ,  G10K11/17835 ,  G10K11/17879 ,  G10K11/17883 ,  G10K2210/12821 ,  G10K2210/129 ,  G10K2210/30391 ,  G10K2210/3045 ,  G10K2210/3046

    Abstract: An active road noise control includes generating with a sensor arrangement a primary sense signal representative of accelerations, motions and/or vibrations that occur at a first position on a vehicle body, and providing a noise reducing signal by processing the primary sense signal according to an adaptive mode of operation or a non-adaptive mode of operation. It includes generating within the vehicle body noise reducing sound at the second position from the noise reducing signal, and evaluating the primary sense signal and controlling the processing of the primary sense signal so that the primary sense signal is processed in the adaptive mode of operation when the magnitude of the primary sense signal undercuts a first threshold and in the non-adaptive mode of operation when the magnitude of the primary sense signal exceeds a second threshold, the first threshold being equal to or smaller than the second threshold.

    Abstract translation: 主动道路噪声控制包括利用传感器装置生成代表在车身上的第一位置处发生的加速度，运动和/或振动的主要感测信号，以及通过根据车辆主体感测信号处理主感测信号来提供降噪信号 自适应操作模式或非自适应操作模式。 它包括在噪声降低信号的第二位置产生车身噪音降低声音，并且评估主感测信号并控制主感测信号的处理，使得在自适应操作模式下处理主感测信号， 当主感测信号的幅度超过第二阈值时，主感测信号的幅度下降第一阈值，并且在非自适应操作模式中，第一阈值等于或小于第二阈值。

    GERÄUSCHREDUKTION FÜR DENTALINSTRUMENTE
    8.
    发明公开
    GERÄUSCHREDUKTION FÜR DENTALINSTRUMENTE 有权
    GERÄUSCHREDUKTIONFÜRDENTALINSTRUMENTE

    公开(公告)号：EP3071144A1

    公开(公告)日：2016-09-28

    申请号：EP14815250.7

    申请日：2014-11-19

    Applicant: Nitzschke, Christian

    Inventor： Nitzschke, Christian

    IPC: A61C19/00 ,  A61C1/08 ,  G10K11/178

    CPC classification number: A61C1/08 ,  A61C19/00 ,  A61C2203/00 ,  G10K11/1785 ,  G10K11/17879 ,  G10K2210/116

    Abstract: The invention relates to a noise reduction device for a dental instrument (1) for the dental treatment of a patient, having - at least one sound sensor (3) arranged on the dental instrument (1), - at least one sound generator (4) arranged on the dental instrument (1), - at least one electronic control module which is connected to the sound sensor (3) and the sound generator (4) in order to analyse the sound signals picked up by the sound sensor (3), to calculate signals for active noise compensation and to pass them to the sound generator (4). The problem addressed by the invention is that of configuring a noise reduction device and method for a dental instrument in as efficient and simple a manner as possible. This problem is solved by the following features: - the sound sensor (3) is arranged on a region of the dental instrument (1) which is located in the oral cavity or close to the mouth opening of the patient while the patient is being treated with the dental instrument (1); - the sound generator (4) is arranged on a region of the dental instrument (1) which is located in the oral cavity or close to the mouth opening of the patient while the patient is being treated with the dental instrument (1); - the distance between the sound sensor (3) and the sound generator(4) has a fixed and known value which is stored in the control module for calculating the signals for active noise compensation.

    Abstract translation: 本发明涉及一种用于患者牙齿治疗的牙科用具（1）的降噪装置，其具有至少一个布置在牙科器械（1）上的声音传感器（3）， - 至少一个声音发生器 ）， - 至少一个连接到声音传感器（3）和声音发生器（4）的电子控制模块，以便分析由声音传感器（3）拾取的声音信号， ，以计算有源噪声补偿的信号并将其传递给声音发生器（4）。 本发明解决的问题在于尽可能有效且简单地配置牙科器械的降噪装置和方法。 这个问题通过以下特征来解决： - 声音传感器（3）布置在牙科器械（1）的位于口腔中或接近患者口部开口处的区域，同时治疗患者 与牙科仪器（1）; - 所述声音发生器（4）布置在所述牙科器械（1）的位于所述牙科器械（1）的所述口腔中或靠近所述患者的开口处的区域上; - 声音传感器（3）和声音发生器（4）之间的距离具有固定和已知的值，其存储在控制模块中，用于计算用于主动噪声补偿的信号。

    SYSTEM AND METHOD FOR VIBRATION CONTROL IN A ROTORCRAFT USING AN ADAPTIVE REFERENCE MODEL ALGORITHM
    9.
    发明公开
    SYSTEM AND METHOD FOR VIBRATION CONTROL IN A ROTORCRAFT USING AN ADAPTIVE REFERENCE MODEL ALGORITHM 有权
    基于自适应参考模型算法的系统和方法震动控制的旋翼飞机

    公开(公告)号：EP2401198A1

    公开(公告)日：2012-01-04

    申请号：EP10746964.5

    申请日：2010-03-01

    Applicant: Bell Helicopter Textron Inc.

    Inventor： HEVERLY, David, E., II ,  SINGH, Rupinder ,  PAPPAS, John

    IPC: B64C27/00

    CPC classification number: B64C27/001 ,  B64C2027/004 ,  F16F15/002 ,  G10K11/17854 ,  G10K11/17879 ,  G10K11/17883 ,  G10K2210/1281 ,  G10K2210/3012 ,  G10K2210/3055 ,  G10K2210/3056

    Abstract: The adaptive reference model algorithm uses a gain scheduling feature combined with a customized Least-Squares routine as an adaptive method for adjusting feedback control so as to account for variations in Transfer Function (G), thereby optimizing the effectiveness of the Active Vibration Control (AVC) System. The Least-Squares routine identifies the transfer function in a background process without interruption of closed loop vibration control. This identification approach is accomplished without intentional interrogation of the AVC actuators and without intentional vibration level changes. For this adaptive control logic, the dynamic relationship between AVC actuators and AVC sensors is represented by a mathematical model of Transfer Function (G). The mathematical model of Transfer Function (G) is continuously updated by the Least-Squares routine. A feedback gain (H) is computed from the mathematical model of Transfer Function (G), and the feedback gain (H) is updated each time the mathematical model of Transfer Function (G) is updated.

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