利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

43 条记录 (耗时 0.013 秒)

    MULTIRATE PROCESSING FOR METROLOGY OF PLASMA RF SOURCE
    1.
    发明授权
    MULTIRATE PROCESSING FOR METROLOGY OF PLASMA RF SOURCE 有权

    公开(公告)号：EP1520288B1

    公开(公告)日：2018-10-17

    申请号：EP03721634.8

    申请日：2003-04-14

    申请人： MKS Instruments, Inc.

    发明人： COUMOU, David, J. ,  KIRK, Michael, L.

    IPC分类号： H01J37/32 ,  H03H7/00

    CPC分类号： H01J37/32174 ,  H01J37/32082 ,  H03H17/0671

    摘要： An RF generator is provided for use in an RF plasma system. The RF generator includes: a power source that is operable to generate RF power signals at a tuned frequency; a sensor unit that is adapted to detect the RF power signals and operable to generate analog signals representative of the RF power signals, where the analog signals include a frequency of interest and a plurality of interfering frequency components; and a sensor signal processing unit that is adapted to receive the analog signals from the sensor unit and to band limit the analog signals within a predefined bandwidth that passes the frequency of interest and rejects interfering frequency components.

    Digitales Filter
    4.
    发明公开
    Digitales Filter 有权
    数字滤波器

    公开(公告)号：EP2667509A2

    公开(公告)日：2013-11-27

    申请号：EP13002481.3

    申请日：2013-05-10

    申请人： MBDA Deutschland GmbH

    发明人： Sedlak, Gerhard

    IPC分类号： H03H17/06

    CPC分类号： G06F17/10 ,  H03H17/0664 ,  H03H17/0671 ,  H03H2017/0678

    摘要： Ein digitales Filter 30 zum Reduzieren einer Abtastrate eines Eingangssignals s umfasst einen Parallelisierungsblock 32 zum Aufspalten des Eingangssignals s in wenigstens zwei parallele Rohsignale u e , einen Integrationsblock 34 zum Umwandeln der parallelen Rohsignale u e in ein Zwischensignal S R , und einen Differentiationsblock 16a, 16b zum Erzeugen eines Ausgangssignals y durch Differenzieren des Zwischensignals S R . Der Integrationsblock 34 umfasst einen Logikblock 36, der dazu ausgeführt ist, durch Summationsoperationen aus den parallelen Rohsignalen u e zwei parallele Summensignale S 0 , S 1 zu erzeugen, und einen Rekursionsblock 38, der dazu ausgeführt ist, aus den parallelen Summensignalen S 0 , S 1 das Zwischensignal S R rekursiv zu erzeugen.

    摘要翻译： 数字滤波器（30）具有用于将输入信号分离为并行原始信号的并行块（32）。 积分块（34）将平行原始信号转换为中间信号。 微分块（16a，16b）通过区分中间信号产生输出信号。 积分块具有用于进行并行原始信号的求和运算并产生并行相加信号的逻辑块（36）。 积分块具有递归块（38），以从并行和信号和中间信号产生递归信号。 包括以下独立权利要求：（1）导弹雷达探测器; 和（2）降低输入信号采样率的方法。

    DECIMATION FILTERING APPARATUS AND METHOD
    5.
    发明公开
    DECIMATION FILTERING APPARATUS AND METHOD 有权
    设备和抽取方法过滤

    公开(公告)号：EP1044506A1

    公开(公告)日：2000-10-18

    申请号：EP98961680.0

    申请日：1998-12-30

    申请人： Samsung Electronics Co., Ltd.

    发明人： OH, Hyuk Jun ,  LEE, Yong Hoon ,  KIM, Sun Bin ,  CHOI, Gin Kyu

    IPC分类号： H03M3/00

    CPC分类号： H03H17/0671

    摘要： A decimation filtering apparatus using interpolated second order polynomials compensates for a droop caused by a CIC (Cascaded Integrator-Comb) filter (51). The decimation filter includes a CIC decimation filter (51) for decimation filtering the sampling signal to downconvert a sampling signal; an ISOP filter (53) for monotonically increasing an output of the CIC decimation filter (51) to compensate for a passband droop caused by the CIC decimation filter (51); a multistage halfband filter (55) including at least one modified halfband filter for 1/2 decimating a signal output from the ISOP filter (53), the multistage halfband filter (55) decimating the signal output from the ISOP filter (53) to downconvert the signal; and a programmable FIR (Finite Impulse Response) filter (57) for compensating for a passband droop of a signal output from the multistage halfband filter (55).

    Sample rate converter with rational numerator or denominator
    7.
    发明公开
    Sample rate converter with rational numerator or denominator 有权
    具有合理分子或分母的采样率转换器

    公开(公告)号：EP2157695A2

    公开(公告)日：2010-02-24

    申请号：EP09178964.4

    申请日：2003-07-10

    申请人： MediaTek, Inc

    发明人： Kelly, Anthony ,  Gealow, Jeffrey

    IPC分类号： H03H17/06

    CPC分类号： H03H17/0671

    摘要： An interpolating sample rate converter that provides rate conversion by a factor of M/N comprising: an upsampler that upsamples an input data stream by a factor of M; a filter that shapes the upsampled data stream in accordance with a predetermined power spectrum; and a downsampler that downsamples the upsampled and shaped signal by a factor of N to produce an output data stream; wherein the upsampler and filter are implemented, at least in part, by a cascaded integrator-comb filter; and wherein the upsampling factor M is a natural number and the downsampling factor N is a rational number but not necessarily a natural number.

    摘要翻译： 内插采样率转换器，其以M / N的系数提供率转换，包括：上采样器，其将输入数据流上采样M倍; 滤波器，其根据预定功率谱来对上采样数据流进行整形; 以及下采样器，其将上采样和整形的信号下采样N倍以产生输出数据流; 其中所述上采样器和滤波器至少部分地通过级联积分梳状滤波器来实现; 并且其中上采样因子M是自然数并且下采样因子N是有理数但不一定是自然数。

    Filter enabling decimation of digital signals by a rational factor
    9.
    发明公开
    Filter enabling decimation of digital signals by a rational factor 审中-公开
    过滤器zur Dezimierung数位板信号灯einen理由Faktor

    公开(公告)号：EP1513254A1

    公开(公告)日：2005-03-09

    申请号：EP03292099.3

    申请日：2003-08-26

    申请人： Mitsubishi Electric Information Technology Centre Europe B.V. ,  MITSUBISHI DENKI KABUSHIKI KAISHA

    发明人： Bisiaux, Alexis

    IPC分类号： H03H17/06

    CPC分类号： H03H17/0671 ,  H03H17/0685 ,  H03H2017/0678

    摘要： The invention concerns a decimation filter for decimation of a digital signal by a rational decimation factor ( R ) including :

    a cascade of integrators (12),
    at least a comb branch (16A, 16B) including

    a decimator (18A, 18B),
    a cascade of differentiators (22A, 22B),

       It includes :

    a first and a second comb branches (16A, 16B) both adapted to receive the samples from said cascade of integrators (12), the decimators (18A, 18B) of the first and second comb branches having a first and a second integer decimation factors ( R 1 , R 2 ) which are different,
    switching means (26, 28) for delivering at the output of the filter successively a first set of consecutive samples outputted by the first comb branch (16A) and a second set of consecutive samples outputted by the second comb branch (16B).

    Application to a software defined radio system.

    摘要翻译： 本发明涉及一种用于通过有理抽取因子（R）抽取数字信号的抽取滤波器，包括：级联的积分器（12），至少包括抽取器（18A，18B）的梳状分支（16A，16B）， 差分器（22A，22B）的级联包括：第一和第二梳状分支（16A，16B），其适于从所述级联的积分器（12）接收样品，所述第一和第二分离器的抽取器（18A，18B） 具有不同的第一和第二整数抽取因子（R1，R2）的第二梳状分支，用于在滤波器的输出处连续递送由第一梳状分支输出的第一组连续样本的切换装置（26,28） 以及由第二梳状分支（16B）输出的第二组连续样本。 应用于软件定义的无线电系统。