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    Method and apparatus for simulating outer ear free field transfer function
    2.
    发明授权
    Method and apparatus for simulating outer ear free field transfer function 失效
    用于模拟外耳自由场传递函数的方法和装置

    公开(公告)号：US4672569A

    公开(公告)日：1987-06-09

    申请号：US715651

    申请日：1985-03-25

    申请人： Klaus Genuit

    发明人： Klaus Genuit

    IPC分类号： H04R3/00 ,  G01H20060101 ,  G06G7/60 ,  G06J1/00 ,  G09B20060101 ,  H04R5/027 ,  H04S20060101 ,  H04S1/00 ,  G06G7/48 ,  H03G3/20 ,  H04R25/00

    CPC分类号： H04R5/027 ,  G06G7/60 ,  G06J1/00

    摘要： An electroacoustic simulation method and apparatus for imitating electroastically the human outer ear having transmission properties corresponding to those of the human outer ear when exposed to sound in the free field is proposed, wherein the physical acoustical causes of the outer ear, the head, the upper part of the body, the pinna rim, and the like, are represented mathematically by simple partial models and approximated in the form of electric circuits containing circuit elements such as high-pass filters, low-pass filters, all-pass filters . . . and the like, with the possibility to vary certain properties of the circuit elements continuously by varying the parameters so that arbitrary directions of sound incidence can be adjusted infinitely in the horizontal and median planes.

    摘要翻译： 提出了一种电声模拟方法和装置，用于在自由场中暴露于声音时电声学地模拟具有与人外耳的传播特性相对应的人体外耳，其中外耳，头部，上部的物理声学原因 通过简单的部分模型在数学上表示身体的一部分，耳廓边缘等，并且以包含诸如高通滤波器，低通滤波器，全通滤波器之类的电路元件的电路的形式近似表示。 。 。 可以通过改变参数来连续地改变电路元件的某些特性，从而可以在水平和中间平面中无限地调节声音入射的任意方向。

    Interference and noise estimation in an OFDM system
    4.
    发明申请
    Interference and noise estimation in an OFDM system 有权
    OFDM系统中的干扰和噪声估计

    公开(公告)号：US20050002324A1

    公开(公告)日：2005-01-06

    申请号：US10809538

    申请日：2004-03-24

    申请人： Arak Sutivong ,  Ayman Naguib ,  Avneesh Agrawal

    发明人： Arak Sutivong ,  Ayman Naguib ,  Avneesh Agrawal

    IPC分类号： G01H20060101 ,  H04J11/00 ,  H04L1/20 ,  H04L27/26

    CPC分类号： H04L1/20 ,  H04L27/2647

    摘要： Noise and interference can be independently measured in a multiple user Orthogonal Frequency Division Multiplexing (OFDM) system. Co-channel interference is measured in a frequency hopping, multiple user, OFDM system by tracking the sub-carriers assigned to all users in a particular service area or cell. The composite noise plus interference can be determined by measuring the amount of received power in a sub-carrier whenever it is not assigned to any user in the cell. A value is stored for each sub-carrier in the system and the value of noise plus interference can be a weighted average of the present value with previously stored values. The noise component can be independently determined in a synchronous system. In the synchronous system, all users in a system may periodically be prohibited from broadcasting over a sub-carrier and the received power in the sub-carrier measured during the period having no broadcasts.

    摘要翻译： 噪声和干扰可以在多用户正交频分复用（OFDM）系统中独立测量。 通过跟踪分配给特定服务区域或小区中的所有用户的子载波，在跳频，多用户OFDM系统中测量同信道干扰。 复合噪声加干扰可以通过在子载波中没有分配给小区中的任何用户时测量子载波中的接收功率的量来确定。 为系统中的每个子载波存储一个值，并且噪声加干扰的值可以是具有先前存储的值的当前值的加权平均值。 噪声分量可以在同步系统中独立确定。 在同步系统中，系统中的所有用户可以周期地禁止通过子载波进行广播，并且在没有广播的时段期间测量的子载波中的接收功率。

    Analysis system for analysing the condition of a machine
    5.
    发明申请
    Analysis system for analysing the condition of a machine 有权
    分析机器状况分析系统

    公开(公告)号：US20050209811A1

    公开(公告)日：2005-09-22

    申请号：US10501544

    申请日：2003-01-20

    申请人： Stefan Lindberg ,  Hakan Hedlund ,  Jim Kummelstam ,  Jarl-Ove Lindberg

    发明人： Stefan Lindberg ,  Hakan Hedlund ,  Jim Kummelstam ,  Jarl-Ove Lindberg

    IPC分类号： G01H20060101 ,  G01H1/00 ,  G01H1/14 ,  G01H1/16 ,  G01M1/28 ,  G01M7/00 ,  G01M13/02 ,  G01M15/04 ,  G01M15/12 ,  G01M99/00 ,  G07C3/00 ,  G07C3/08 ,  G07C3/10 ,  G07C9/00 ,  G01M19/00

    CPC分类号： G01M15/04 ,  G01H1/003 ,  G01H1/14 ,  G01H1/16 ,  G01M1/28 ,  G01M13/028 ,  G01M13/045 ,  G01M15/048 ,  G01M15/12 ,  G05B23/0221 ,  G07C3/00 ,  G07C3/08 ,  G07C3/10 ,  G07C9/00103 ,  G07C9/00142

    摘要： A system for analyzing the condition of a machine having a rotating shaft and a machine body with a measuring point includes a client part communicating with a supplier part computer via a communications network. The client part includes: a sensor attachable at the measuring point for generating measurement data dependent on shaft rotation; an analysis apparatus for analyzing the condition of the machine based on the measurement data, the analysis apparatus having at least one input receiving the measurement data; a data processor for processing condition data dependent on the measurement data, the data processor including an element for performing condition monitoring functions and a logger registering their use; a communication port coupled to the data processor and connectable to the communications network to communicate with the supplier part computer. The analysis apparatus can deliver registered use information to the supplier part computer via the communication port.

    摘要翻译： 用于分析具有旋转轴的机器和具有测量点的机器的状态的系统包括经由通信网络与供应商部件计算机通信的客户端部分。 客户端部分包括：可在测量点附接的传感器，用于产生取决于轴旋转的测量数据; 分析装置，用于基于测量数据分析机器的状态，所述分析装置具有至少一个接收测量数据的输入; 用于根据所述测量数据处理条件数据的数据处理器，所述数据处理器包括用于执行状态监视功能的元件和记录其使用的记录器; 通信端口，其耦合到数据处理器并且可连接到通信网络以与供应商部件计算机通信。 分析装置可以通过通信端口将注册的使用信息提供给供应商零件计算机。

    Vibration sensor and method for monitoring the condition of rotating components and bearings
    6.
    发明申请
    Vibration sensor and method for monitoring the condition of rotating components and bearings 有权
    振动传感器和方法，用于监测旋转部件和轴承的状态

    公开(公告)号：US20050155429A1

    公开(公告)日：2005-07-21

    申请号：US10511032

    申请日：2003-04-14

    申请人： Erich Griessler ,  Peter Herberholz ,  Benno Kathan ,  Thomas May ,  Christian Bauer ,  Michael Danitschek

    发明人： Erich Griessler ,  Peter Herberholz ,  Benno Kathan ,  Thomas May ,  Christian Bauer ,  Michael Danitschek

    IPC分类号： G01H20060101 ,  G01H1/00 ,  G01N29/00

    CPC分类号： G01M13/045

    摘要： A vibration sensor (1) for monitoring the state of rotating components or bearings, includes a housing (2), a sensor element (3), evaluation electronics (4), and at least one interface (5, 6). With the vibration sensor (1), reliable monitoring of the state of rotating components and bearings can be done easily and economically, and in addition the vibration sensor can be easily operated. The evaluation electronics (4) has an analog-to-digital converter (7), and a signal conditioning means (8) having a plurality of signals, which have been acquired by the sensor element (3), and which are converted into a state value using signal analysis and a diagnosis algorithm.

    摘要翻译： 用于监测旋转部件或轴承的状态的振动传感器（1）包括壳体（2），传感器元件（3），评估电子部件（4）和至少一个接口（5,6）。 利用振动传感器（1），可以方便，经济地对旋转部件和轴承的状态进行可靠的监控，另外还可以方便地进行振动传感器的操作。 评估电子装置（4）具有模数转换器（7）和信号调节装置（8），其具有由传感器元件（3）获取的多个信号，并被转换为 状态值使用信号分析和诊断算法。

    Method for reconstructing complex wave attributes from limited view measurements
    7.
    发明申请
    Method for reconstructing complex wave attributes from limited view measurements 有权
    从有限视图测量重建复波属性的方法

    公开(公告)号：US20050027769A1

    公开(公告)日：2005-02-03

    申请号：US10790301

    申请日：2004-03-01

    申请人： Alan Witten

    发明人： Alan Witten

    IPC分类号： G01H20060101 ,  G01N29/07 ,  G01N29/11 ,  G01N29/46 ,  G01V1/28 ,  G06F17/14

    CPC分类号： G01V1/28 ,  G01N29/0672 ,  G01N29/07 ,  G01N29/11 ,  G01N29/46 ,  G06F17/141 ,  G06F17/17

    摘要： A method is disclosed for reconstructing complex wave attributes from limited view measurements of a scattering object. The method involves the analytic continuation of the Fourier transform of the object function into the area in which there is an absence of K-space coverage by requiring objects to be an even function. (It is assumed that physical objects are even functions, and it is this assumption that allows analytic continuation.) When the object function is not centered at the origin, the measurements are shifted to the origin prior to determining the analytic continuation and returned to their original location following analytic continuation.

    摘要翻译： 公开了一种用于从散射物体的有限视角测量重构复波属性的方法。 该方法涉及通过要求对象为偶数函数，将对象函数的傅立叶变换分析延续到不存在K空间覆盖的区域。 （假设物理对象是偶数函数，这是允许分析延续的这个假设）当对象函数不以起点为中心时，在确定分析延续之前将测量值转移到原点，并返回到它们 分析延续后的原始位置。

    Acoustic vector sensor
    9.
    发明申请
    Acoustic vector sensor 失效
    声矢量传感器

    公开(公告)号：US20050034519A1

    公开(公告)日：2005-02-17

    申请号：US10887347

    申请日：2004-07-09

    申请人： Ken Deng

    发明人： Ken Deng

    IPC分类号： G01H20060101 ,  G01N29/02 ,  H01L41/04 ,  H02N2/00 ,  H04R1/02

    CPC分类号： H01L41/1132 ,  G01P15/0915 ,  G01P15/18 ,  G01V1/16

    摘要： The present invention is directed to an acoustic vector sensor, specifically an underwater acoustic vector sensor. The acoustic vector sensor contains three piezoelectric sensors orthogonally mounted inside a rigid housing, where each of the piezoelectric sensors measures acoustic energy from one of the three different, orthogonal, axial directions (X, Y, and Z). The piezoelectric sensor contains a proof mass, a base, and a piezoelectric crystal sandwiched therebetween. The bonding surfaces of the proof mass and the base are preferably castellated; and the piezoelectric crystal is preferably a shear mode (d15) relaxor single crystal.

    摘要翻译： 本发明涉及声矢量传感器，特别是水下声矢量传感器。 声矢量传感器包含正交安装在刚性壳体内的三个压电传感器，其中每个压电传感器测量来自三个不同的正交轴向（X，Y和Z）之一的声能。 压电传感器包含夹在其间的检测质量块，基体和压电晶体。 检测质量块和基体的粘合面优选为cast形的; 并且压电晶体优选为剪切模式（d15）弛豫单晶。