利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

62 条记录 (耗时 0.04 秒)

    Systems, methods, and apparatus for signal separation using data driven techniques
    4.
    发明授权
    Systems, methods, and apparatus for signal separation using data driven techniques 有权
    使用数据驱动技术进行信号分离的系统，方法和装置

    公开(公告)号：US08160273B2

    公开(公告)日：2012-04-17

    申请号：US12197924

    申请日：2008-08-25

    申请人： Erik Visser ,  Kwokleung Chan ,  Hyun Jin Park

    发明人： Erik Visser ,  Kwokleung Chan ,  Hyun Jin Park

    IPC分类号： H04B15/00

    CPC分类号： G10L21/0272

    摘要： Methods, apparatus, and systems for source separation include a converged plurality of coefficient values that is based on each of a plurality of M-channel signals. Each of the plurality of M-channel signals is based on signals produced by M transducers in response to at least one information source and at least one interference source. In some examples, the converged plurality of coefficient values is used to filter an M-channel signal to produce an information output signal and an interference output signal.

    摘要翻译： 用于源分离的方法，装置和系统包括基于多个M信道信号中的每一个的会聚的多个系数值。 多个M信道信号中的每一个基于由M个换能器响应于至少一个信息源和至少一个干扰源产生的信号。 在一些示例中，收敛的多个系数值用于滤波M信道信号以产生信息输出信号和干扰输出信号。

    SYSTEMS, METHODS, AND APPARATUS FOR SIGNAL SEPARATION
    5.
    发明申请
    SYSTEMS, METHODS, AND APPARATUS FOR SIGNAL SEPARATION 有权
    用于信号分离的系统，方法和装置

    公开(公告)号：US20090022336A1

    公开(公告)日：2009-01-22

    申请号：US12197924

    申请日：2008-08-25

    申请人： Erik Visser ,  Kwokleung Chan ,  Hyun Jin Park

    发明人： Erik Visser ,  Kwokleung Chan ,  Hyun Jin Park

    IPC分类号： H04B15/00

    CPC分类号： G10L21/0272

    摘要： Methods, apparatus, and systems for source separation include a converged plurality of coefficient values that is based on each of a plurality of M-channel signals. Each of the plurality of M-channel signals is based on signals produced by M transducers in response to at least one information source and at least one interference source. In some examples, the converged plurality of coefficient values is used to filter an M-channel signal to produce an information output signal and an interference output signal.

    摘要翻译： 用于源分离的方法，装置和系统包括基于多个M信道信号中的每一个的会聚的多个系数值。 多个M信道信号中的每一个基于由M个换能器响应于至少一个信息源和至少一个干扰源产生的信号。 在一些示例中，收敛的多个系数值用于滤波M信道信号以产生信息输出信号和干扰输出信号。

    Variable beamforming with a mobile platform
    6.
    发明授权
    Variable beamforming with a mobile platform 有权

    公开(公告)号：US08525868B2

    公开(公告)日：2013-09-03

    申请号：US13006303

    申请日：2011-01-13

    申请人： Babak Forutanpour ,  Andre Gustavo P. Schevciw ,  Erik Visser ,  Brian Momeyer

    发明人： Babak Forutanpour ,  Andre Gustavo P. Schevciw ,  Erik Visser ,  Brian Momeyer

    IPC分类号： H04N7/15

    CPC分类号： H04R3/005 ,  H04R2201/40 ,  H04R2410/01 ,  H04R2430/25 ,  H04R2499/11 ,  H04R2499/15

    摘要： A mobile platform includes a microphone array and is capable of implementing beamforming to amplify or suppress audio information from a sound source. The sound source is indicated through a user input, such as pointing the mobile platform in the direction of the sound source or through a touch screen display interface. The mobile platform further includes orientation sensors capable of detecting movement of the mobile platform. When the mobile platform moves with respect to the sound source, the beamforming is adjusted based on the data from the orientation sensors so that beamforming is continuously implemented in the direction of the sound source. The audio information from the sound source may be included or suppressed from a telephone or video-telephony conversation. Images or video from a camera may be likewise controlled based on the data from the orientation sensors.

    VARIABLE BEAMFORMING WITH A MOBILE PLATFORM
    7.
    发明申请
    VARIABLE BEAMFORMING WITH A MOBILE PLATFORM 有权
    具有移动平台的可变光束

    公开(公告)号：US20120182429A1

    公开(公告)日：2012-07-19

    申请号：US13006303

    申请日：2011-01-13

    申请人： Babak Forutanpour ,  Andre Gustavo P. Schevciw ,  Erik Visser ,  Brian Momeyer

    发明人： Babak Forutanpour ,  Andre Gustavo P. Schevciw ,  Erik Visser ,  Brian Momeyer

    IPC分类号： H04N7/18 ,  H04R3/00

    CPC分类号： H04R3/005 ,  H04R2201/40 ,  H04R2410/01 ,  H04R2430/25 ,  H04R2499/11 ,  H04R2499/15

    摘要： A mobile platform includes a microphone array and is capable of implementing beamforming to amplify or suppress audio information from a sound source. The sound source is indicated through a user input, such as pointing the mobile platform in the direction of the sound source or through a touch screen display interface. The mobile platform further includes orientation sensors capable of detecting movement of the mobile platform. When the mobile platform moves with respect to the sound source, the beamforming is adjusted based on the data from the orientation sensors so that beamforming is continuously implemented in the direction of the sound source. The audio information from the sound source may be included or suppressed from a telephone or video-telephony conversation. Images or video from a camera may be likewise controlled based on the data from the orientation sensors.

    摘要翻译： 移动平台包括麦克风阵列，并且能够实现波束形成以放大或抑制来自声源的音频信息。 通过用户输入来指示声源，例如将移动平台指向声源的方向或通过触摸屏显示界面。 移动平台还包括能够检测移动平台的移动的定向传感器。 当移动平台相对于声源移动时，基于来自定向传感器的数据来调整波束形成，使得波束形成在声源的方向上连续地实现。 可以从电话或视频电话对话中包括或抑制来自声源的音频信息。 可以基于来自定向传感器的数据来控制来自相机的图像或视频。

    Robust separation of speech signals in a noisy environment
    9.
    发明授权
    Robust separation of speech signals in a noisy environment 有权
    语音信号在嘈杂环境中的鲁棒分离

    公开(公告)号：US07464029B2

    公开(公告)日：2008-12-09

    申请号：US11187504

    申请日：2005-07-22

    申请人： Erik Visser ,  Jeremy Toman ,  Kwokleung Chan

    发明人： Erik Visser ,  Jeremy Toman ,  Kwokleung Chan

    IPC分类号： G10L19/14 ,  G10L11/06 ,  G10L21/02 ,  G10L15/20

    CPC分类号： G10L25/78 ,  G10L21/0272 ,  G10L2021/02165 ,  H04R2410/07

    摘要： A method for improving the quality of a speech signal extracted from a noisy acoustic environment is provided. In one approach, a signal separation process is associated with a voice activity detector. The voice activity detector is a two-channel detector, which enables a particularly robust and accurate detection of voice activity. When speech is detected, the voice activity detector generates a control signal. The control signal is used to activate, adjust, or control signal separation processes or post-processing operations to improve the quality of the resulting speech signal. In another approach, a signal separation process is provided as a learning stage and an output stage. The learning stage aggressively adjusts to current acoustic conditions, and passes coefficients to the output stage. The output stage adapts more slowly, and generates a speech-content signal and a noise dominant signal. When the learning stage becomes unstable, only the learning stage is reset, allowing the output stage to continue outputting a high quality speech signal.

    摘要翻译： 提供了一种用于改善从噪声声环境提取的语音信号的质量的方法。 在一种方法中，信号分离过程与语音活动检测器相关联。 语音活动检测器是双通道检测器，能够对语音活动进行特别鲁棒和准确的检测。 当检测到语音时，语音活动检测器产生控制信号。 控制信号用于激活，调整或控制信号分离处理或后处理操作，以提高所得语音信号的质量。 在另一种方法中，提供信号分离过程作为学习阶段和输出阶段。 学习阶段积极地调整到当前的声学条件，并将系数传递到输出级。 输出级更慢地适应，并产生语音内容信号和噪声主导信号。 当学习阶段变得不稳定时，只有学习阶段被复位，允许输出级继续输出高质量的语音信号。

    System and Method for Spectral Analysis
    10.
    发明申请
    System and Method for Spectral Analysis 审中-公开
    光谱分析系统与方法

    公开(公告)号：US20090001262A1

    公开(公告)日：2009-01-01

    申请号：US11659629

    申请日：2004-10-22

    申请人： Erik Visser ,  Tzyy-Ping Jung ,  Kwokleung Chan

    发明人： Erik Visser ,  Tzyy-Ping Jung ,  Kwokleung Chan

    IPC分类号： H01J49/26

    CPC分类号： H01J49/0036 ,  G06K9/6242

    摘要： The system and method for spectral analysis uses a set of spectral data. The spectral data is arranged according to a second dimension, such as time, temperature, position, or other condition. The arranged spectral data is used in a signal separation process, such as an independent component analysis (ICA), which generates independent signals. The independent signals are then used for identifying or quantifying a target component.

    摘要翻译： 光谱分析的系统和方法使用一组光谱数据。 光谱数据根据诸如时间，温度，位置或其他条件的第二维度来布置。 布置的光谱数据用于信号分离过程，例如独立分量分析（ICA），其产生独立的信号。 然后，独立信号用于识别或量化目标分量。