利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.008 秒)

    ADAPTIVE TECHNIQUES FOR AUTOMATIC FREQUENCY DETERMINATION AND MEASUREMENT
    1.
    发明公开
    ADAPTIVE TECHNIQUES FOR AUTOMATIC FREQUENCY DETERMINATION AND MEASUREMENT 失效
    自适应技术能自动进行频率识别和测量。

    公开(公告)号：EP0081556A1

    公开(公告)日：1983-06-22

    申请号：EP82902029.0

    申请日：1982-05-17

    申请人： Western Electric Company, Incorporated

    发明人： MAY, Carl Jerome, Jr.

    IPC分类号： G06F17 ,  H03H17 ,  H03H21 ,  H04Q1

    CPC分类号： H04Q1/4575 ,  H03H21/0012 ,  H03H21/0025

    摘要： Plusieurs modes de realisation d'une technique sont presentes pour tirer profit de la correlation entre des signaux de maniere a fournir des informations utilisables concernant la frequence. Dans un mode specifique de realisation, un filtre (51) est adapte a une composante de signal d'un signal d'entree utilisant une variable generee par un adaptateur (58). La variable possede une relation determinee avec la frequence de la composante du signal. La variable est utilisee pour ponderer une combinaison de valeurs de signaux derivees d'un historique de signaux pour former une prediction d'un signal futur. Un additionneur (56) combine la nouvelle valeur du signal avec la prediction pour former un signal d'erreur qui est utilise par le filtre (51) et l'adaptateur (58). Lorsque le filtre converge, un indicateur de frequence (59) utilisant la variable produit un signal de sortie indiquant la frequence de la composante du signal.

    FILTER COEFFICIENT UPDATING IN TIME DOMAIN FILTERING
    3.
    发明公开
    FILTER COEFFICIENT UPDATING IN TIME DOMAIN FILTERING 有权

    公开(公告)号：EP3350805A1

    公开(公告)日：2018-07-25

    申请号：EP16777835.6

    申请日：2016-09-15

    申请人： Dolby Laboratories Licensing Corporation

    发明人： SHI, Dong ,  SUN, Xuejing

    IPC分类号： G10L25/48 ,  G10L25/18

    CPC分类号： G10L25/18 ,  G10L25/48 ,  H03H17/0227 ,  H03H17/0294 ,  H03H21/0025 ,  H03H21/0043

    摘要： Example embodiments disclosed herein relate to filter coefficient updating in time domain filtering. A method of processing an audio signal is disclosed. The method includes obtaining a predetermined number of target gains for a first portion of the audio signal by analyzing the first portion of the audio signal. Each of the target gains is corresponding to a linear subband of the audio signal. The method also includes determining a filter coefficients for time domain filtering the first portion of the audio signal so as to approximate a frequency response given by the target gains. The filter coefficients are determined by iteratively selecting at least one target gain from the target gains and updating the filter coefficient based on the selected at least one target gain. Corresponding system and computer program product for processing an audio signal are also disclosed.

    Adaptive apparatus
    4.
    发明公开
    Adaptive apparatus 失效
    自适应Anordnung。

    公开(公告)号：EP0422809A2

    公开(公告)日：1991-04-17

    申请号：EP90310707.6

    申请日：1990-09-28

    申请人： CANON KABUSHIKI KAISHA

    发明人： Shinnaka, Shinji, c/o Canon Kabushiki Kaisha

    IPC分类号： G05B13/02

    CPC分类号： H03H21/0025 ,  G05B13/024

    摘要： An adaptive apparatus for adjusting a system parameter in an adaptive manner, wherein the parameter in the form of a vector is successively adjusted by using a vector error signal, a first adaptive gain signal in the form of a matrix corresponding to the vector error signal, a matrix signal and a second adaptive gain in the form of a matrix corresponding to the matrix signal.

    摘要翻译： 一种用于以自适应方式调整系统参数的自适应装置，其中通过使用向量误差信号，与向量误差信号对应的矩阵形式的第一自适应增益信号来连续地调整矢量形式的参数， 矩阵信号和与矩阵信号对应的矩阵形式的第二自适应增益。

    SOUND SOURCE SEPARATION APPARATUS
    5.
    发明公开
    SOUND SOURCE SEPARATION APPARATUS 审中-公开
    声源分离装置

    公开(公告)号：EP3279896A1

    公开(公告)日：2018-02-07

    申请号：EP17184363.4

    申请日：2017-08-01

    申请人： Rion Co., Ltd. ,  Inter-University Research Institute Corporation Research Organization of Information and Systems

    发明人： ONO, Nobutaka ,  SUNOHARA, Masahiro ,  HARUTA, Chiho

    IPC分类号： G10L21/0272 ,  H03H21/00 ,  H04R3/00 ,  H04R25/00

    CPC分类号： G10L19/008 ,  G01S3/808 ,  G10L21/0272 ,  H03H21/0025 ,  H03H2021/0034 ,  H04R1/406 ,  H04R3/005 ,  H04R25/407

    摘要： A sound source separation apparatus includes: a separation-matrix processor that transforms a plurality of observation signals corresponding to sounds being propagated from a plurality of sound sources into a frequency-domain signal group the separation-matrix processor updating a separation matrix based on the frequency-domain signal group and transforming the updated separation matrix into time-series filter coefficients to output; a filter-coefficient transformer that partially removes non-causal components from the filter coefficients to transform the filter coefficients, and a separator that supplies the filter coefficients to a filter group, the separator generating a plurality of separation signals separated from the plurality of observation signals corresponding to the separation matrix.

    摘要翻译： 声源分离设备包括：分离矩阵处理器，用于将与从多个声源传播的声音相对应的多个观测信号变换为频域信号组，分离矩阵处理器基于频率更新分离矩阵 并将更新后的分离矩阵变换为时间序列滤波器系数输出; 滤波器系数变换器，部分地从滤波器系数中去除非因果分量以变换滤波器系数;以及分离器，将滤波器系数提供给滤波器组，分离器生成与多个观测信号分离的多个分离信号 对应于分离矩阵。

    Adaptive apparatus
    6.
    发明公开
    Adaptive apparatus 失效
    自适应装置

    公开(公告)号：EP0422809A3

    公开(公告)日：1991-08-14

    申请号：EP90310707.6

    申请日：1990-09-28

    申请人： CANON KABUSHIKI KAISHA

    发明人： Shinnaka, Shinji, c/o Canon Kabushiki Kaisha

    IPC分类号： G05B13/02

    CPC分类号： H03H21/0025 ,  G05B13/024

    摘要： An adaptive apparatus for adjusting a system parameter in an adaptive manner, wherein the parameter in the form of a vector is successively adjusted by using a vector error signal, a first adaptive gain signal in the form of a matrix corresponding to the vector error signal, a matrix signal and a second adaptive gain in the form of a matrix corresponding to the matrix signal.

    Signal processing device and signal processing method
    9.
    发明公开
    Signal processing device and signal processing method 有权
    Vorrichtung und Verfahren zur Signalverarbeitung

    公开(公告)号：EP2842480A1

    公开(公告)日：2015-03-04

    申请号：EP13182051.6

    申请日：2013-08-28

    申请人： MediaTek Inc.

    发明人： Hsu, Chien-Hua

    IPC分类号： A61B5/00 ,  A61B5/0452 ,  G06K9/00 ,  A61B5/04 ,  A61B5/0428

    CPC分类号： H03H21/0025 ,  A61B5/04017 ,  A61B5/0428 ,  A61B5/0452 ,  A61B5/7203 ,  A61B5/725 ,  G06K9/0051 ,  G06K9/0055 ,  H03H21/0021 ,  H03H2021/0081 ,  H03H2021/0094 ,  H03H2210/033

    摘要： Embodiments of the invention disclose a signal processing device and a signal processing method and a device and a method for signal processing. The signal processing device includes a sampling module, a first segmentation module, a second segmentation module, and a detection module. The sampling module samples an input signal to generate a sample signal. The first segmentation module calculates a first segment value according to the sample signal during a first time interval. The second segmentation module calculates a second segment value according to the sample signal during a second time interval different in length from the first time interval. The detection module generates a detection signal according to the determination of whether the first segment value lies out of a first range, and whether the second segment value lies out of a second range.

    摘要翻译： 本发明的实施例公开了信号处理装置和信号处理方法以及用于信号处理的装置和方法。 信号处理装置包括采样模块，第一分割模块，第二分割模块和检测模块。 采样模块对输入信号进行采样以产生采样信号。 第一分割模块在第一时间间隔期间根据采样信号计算第一分段值。 第二分割模块在与第一时间间隔不同的第二时间间隔内根据采样信号计算第二分段值。 检测模块根据第一段值是否处于第一范围的判定以及第二段值是否在第二范围之外，生成检测信号。