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    • 22. 发明申请
    • ELECTRO-ACOUSTIC TRANSDUCER COMPRISING A MEMS SENSOR
    • 包含MEMS传感器的电声传感器
    • WO2009016587A1
    • 2009-02-05
    • PCT/IB2008/053037
    • 2008-07-29
    • NXP B.V.LUTZ, JosefLEITNER, Stefan
    • LUTZ, JosefLEITNER, Stefan
    • H04R19/00H04R19/04
    • H04R19/005H04R19/04
    • An electro-acoustic transducer (1) is disclosed, comprising a substrate (2) that comprises conducting paths (3), a cover (4) attached to said substrate (2) thus forming an inner chamber (A) and a space (B) outside said chamber (A), wherein said cover (4) comprises one or more ports (5). A MEMS sensor (6) of said transducer (1) has at least one hole (7) extending from a first side (C) to a second side (D). A membrane (8) is arranged in said hole (7) transverse to the hole axis (E) thus forming a first hole space (a) and a second hole space (b). The sensor (6) furthermore has electrical connectors (9) designed to carry electrical signals representing sound acting on said membrane (8), which connectors (9) are connected to said conducting paths (3). According to the invention, said MEMS sensor (6) is arranged inside said chamber (A) in such a way that said second hole space (b) is connected to said outside space (B) via said port or ports (5) and said first hole space (a) is connected to said inner chamber (A).
    • 公开了一种电声换能器(1),其包括基板(2),其包括导电路径(3),附接到所述基板(2)的盖(4),从而形成内室(A)和空间(B ),其中所述盖(4)包括一个或多个端口(5)。 所述换能器(1)的MEMS传感器(6)具有从第一侧(C)延伸到第二侧(D)的至少一个孔(7)。 在所述孔(7)中横向于孔轴线(E)布置膜(8),从而形成第一孔空间(a)和第二孔空间(b)。 传感器(6)还具有电连接器(9),其被设计成承载表示作用在所述膜(8)上的声音的电信号,该连接器(9)连接到所述导电路径(3)。 根据本发明,所述MEMS传感器(6)以所述第二孔空间(b)经由所述端口(5)连接到所述外部空间(B)的方式布置在所述室(A)内,并且所述 第一孔空间(a)连接到所述内室(A)。
    • 23. 发明申请
    • METHOD OF DETERMINING THE HARMONIC AND ANHARMONIC PORTIONS OF A RESPONSE SIGNAL OF A DEVICE
    • 确定器件响应信号的谐波和非线性部分的方法
    • WO2008056285A1
    • 2008-05-15
    • PCT/IB2007/054206
    • 2007-10-16
    • NXP B.V.LUTZ, Josef
    • LUTZ, Josef
    • H04R29/00G01R23/173G01R23/20
    • G01R23/20H04R29/001
    • A method of determining the harmonic and anharmonic portions of a response signal (RS) of a device (2), e.g. an electro-acoustic or electric device, comprises the steps of supplying an input signal (IS) to the device (2) causing the device (2) to respond with a response signal (RS), wherein the input signal (IS) is a sinusoidal signal having a continuously increasing or decreasing frequency (f), capturing the response signal (RS), transforming the captured response signal (RS) from the time space into the phase space and analyzing the phase space transformed response signal (TRS) in respect of its harmonic and/or anharmonic portions or establishing reference functions when defining the input signal (IS) and analyzing the response signal (RS) by Fourier transformations carried out by numerical integrations of the reference functions.
    • 确定装置(2)的响应信号(RS)的谐波和非调谐部分的方法,例如, 电声或电子装置包括以下步骤:向设备(2)提供输入信号(IS),使设备(2)响应于响应信号(RS),其中输入信号(IS)为 具有连续增加或减小的频率(f)的正弦信号,捕获响应信号(RS),将捕获的响应信号(RS)从时间空间变换到相位空间中,并且相对于相位空间变换的响应信号(TRS)分析 的谐波和/或非调谐部分,或者在定义输入信号(IS)时建立参考功能,并通过参考功能的数字积分进行的傅里叶变换来分析响应信号(RS)。
    • 24. 发明申请
    • ASYMMETRICAL MOVING SYSTEM FOR A PIEZOELECTRIC SPEAKER AND ASYMMETRICAL SPEAKER
    • 压电扬声器和非对称扬声器不对称移动系统
    • WO2007054919A1
    • 2007-05-18
    • PCT/IB2006/054237
    • 2006-11-14
    • KONINKLIJKE PHILIPS ELECTRONICSWINDISCHBERGER, SusanneLUTZ, Josef
    • WINDISCHBERGER, SusanneLUTZ, Josef
    • H04R17/00H04R7/04
    • H04R17/00H04R7/045
    • The present invention discloses a moving system (3) for a piezoelectric speaker (1), comprising a membrane (4) and a piezoelectric layer (5) attached thereto, wherein a movement of the moving system (3) in a main direction (MD) is substantially caused by dilatation/contraction of the piezoelectric layer (5) transverse to said main direction (MD). Accordingly, there is no translatory movement when exciting the moving system (3), but only a bending movement. To provide an advantageous frequency response of the moving system (3), it is built up asymmetrically with respect to the moving characteristics. Accordingly, the modes are frequency shifted on the one hand and of less influence on the other. Hence, the frequency response of an inventive speaker (1) has less elevations and depressions in the frequency response. The concrete design of a moving system (3) is preferably done by the use of a computer simulation based on a finite elements method. In a preferred embodiment the local compliance and/or the shape of the moving system (3) is asymmetrical with respect to any point in the plane of the moving system (3).
    • 本发明公开了一种用于压电扬声器(1)的移动系统(3),其包括膜(4)和附接到其上的压电层(5),其中移动系统(3)沿主方向(MD )主要由压电层(5)横向于所述主方向(MD)的扩张/收缩引起。 因此,当激活移动系统(3)时仅仅是弯曲运动,没有平移运动。 为了提供移动系统(3)的有利的频率响应,它相对于移动特性被非对称地构建。 因此,这些模式一方面是频移,另一方面影响较小。 因此,本发明的扬声器(1)的频率响应在频率响应中具有较小的上升和下降。 移动系统(3)的具体设计优选地通过使用基于有限元法的计算机模拟来完成。 在优选实施例中,移动系统(3)的局部顺从性和/或形状相对于移动系统(3)的平面中的任何点是不对称的。
    • 26. 发明申请
    • VIBRATING ELEMENT FOR AN ELECTROACOUSTIC TRANSDUCER
    • 振动元件用于电动传感器
    • WO2006033075A1
    • 2006-03-30
    • PCT/IB2005/053086
    • 2005-09-20
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.LUTZ, Josef
    • LUTZ, Josef
    • H04R9/06
    • H04R9/06Y10T29/49005Y10T29/49575
    • A vibrating element (1) for an electroacoustic transducer, particularly for a loudspeaker, is provided, comprising a diaphragm (2) with at least two electrically conductive areas (3a, 3b) separated from each other, and with a recess (4). In the recess (4) a coil (5) is arranged with two connecting leads (6a, 6b), which are electrically contacted with one conductive area each (3a, 3b). The contact points (8a..8d) are then located in the area of the recess (4). Furthermore, a method for the manufacturing of a vibrating element (1) is provided. The recess (4), the inserting of the coil (5) into the recess (4) as well as optionally the contacting of connecting leads (6a, 6b) with the conductive areas (3a, 3b) can then take place in one process step.
    • 提供了一种用于电声换能器,特别是用于扬声器的振动元件(1),包括具有彼此分离的至少两个导电区域(3a,3b)的隔膜(2)和凹部(4)。 在凹部(4)中,线圈(5)布置有两个连接引线(6a,6b),每个连接引线与一个导电区域(3a,3b)电接触。 接触点(8a..8d)然后位于凹部(4)的区域中。 此外,提供了一种用于制造振动元件(1)的方法。 凹槽(4),线圈(5)插入凹槽(4)中以及可选地连接引线(6a,6b)与导电区域(3a,3b)的接触可以在一个过程中进行 步。
    • 28. 发明申请
    • ELECTRONIC CIRCUIT FOR CONTROLLING A CAPACITIVE PRESSURE SENSOR AND CAPACITIVE PRESSURE SENSOR SYSTEM
    • 用于控制电容式压力传感器和电容式压力传感器系统的电子电路
    • WO2009130626A1
    • 2009-10-29
    • PCT/IB2009/051405
    • 2009-04-03
    • NXP B.V.LUTZ, Josef
    • LUTZ, Josef
    • G01L9/12
    • G01L9/12
    • An electronic circuit (10) for controlling a capacitive pressure sensor (1), which capacitive pressure sensor (1) comprises a plate electrode capacitor (C) with a capacity that varies in dependence on pressure changes exerted on a deflectable diaphragm (2) forming one plate electrode of the capacitor (C), wherein the electronic circuit (10) comprises a DC voltage source (12) being adapted to generate a DC bias-voltage (UDC) to be applied across the electrodes of the capacitor (C), an AC voltage source (13) being adapted to generate an AC voltage signal (UAC) to be applied across the electrodes of the capacitor (C) and a controller (18) being adapted to receive an output signal (OUT) of the capacitor (C) and to control the DC voltage source (12) such that the DC bias-voltage (UDC) applied to the capacitor (C) adopts a value that maintains the capacity of the capacitor (C) at a desired value.
    • 一种用于控制电容式压力传感器(1)的电子电路(10),该电容式压力传感器(1)包括板电极电容器(C),该电容电容器(C)具有根据施加在形成的可偏转隔膜(2)上的压力变化而变化的能力 电容器(C)的一个平板电极,其中电子电路(10)包括适于产生跨过电容器(C)的电极施加的DC偏置电压(UDC)的DC电压源(12) 交流电压源(13)适于产生要施加在电容器(C)两端的电压的AC电压信号(UAC);以及控制器(18),适于接收电容器的输出信号(OUT) C)并且控制DC电压源(12),使得施加到电容器(C)的DC偏置电压(UDC)采用将电容器(C)的容量保持在期望值的值。