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62 条记录 (耗时 0.051 秒)

    System and Method for Spectral Analysis
    21.
    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。

    Separation of target acoustic signals in a multi-transducer arrangement
    22.
    发明申请
    Separation of target acoustic signals in a multi-transducer arrangement 有权
    在多换能器布置中分离目标声信号

    公开(公告)号：US20050060142A1

    公开(公告)日：2005-03-17

    申请号：US10897219

    申请日：2004-07-22

    申请人： Erik Visser ,  Te-Won Lee

    发明人： Erik Visser ,  Te-Won Lee

    IPC分类号： G10L21/02

    CPC分类号： H04R3/005 ,  G10L21/0208 ,  G10L21/0272 ,  G10L2021/02161 ,  G10L2021/02165 ,  H04R2430/25

    摘要： The present invention provides a process for separating a good quality information signal from a noisy acoustic environment. The separation process uses a set of a least two spaced-apart transducers to capture noise and information components. The transducer signals, which have both a noise and information component, are received into a separation process. The separation process generates one channel that is substantially only noise, and another channel that is a combination of noise and information. An identification process is used to identify which channel has the information component. The noise signal is then used to set process characteristics that are applied to the combination signal to efficiently reduce or eliminate the noise component. In this way, the noise is effectively removed from the combination signal to generate a good qualify information signal. The information signal may be, for example, a speech signal, a seismic signal, a sonar signal, or other acoustic signal.

    摘要翻译： 本发明提供了一种用于从良好的声学环境中分离出良好质量信息信号的方法。 分离过程使用一组至少两个间隔开的传感器来捕获噪声和信息分量。 具有噪声和信息分量的换能器信号被接收到分离过程中。 分离过程产生基本上只有噪声的一个信道，以及作为噪声和信息的组合的另一个信道。 使用识别过程来识别哪个信道具有信息分量。 然后使用噪声信号来设置施加到组合信号的处理特性，以有效地减少或消除噪声分量。 以这种方式，有效地从组合信号中去除噪声以产生良好的限定信息信号。 信息信号可以是例如语音信号，地震信号，声纳信号或其他声信号。

    Systems, methods, and apparatus for speech feature detection
    23.
    发明授权
    Systems, methods, and apparatus for speech feature detection 有权
    用于语音特征检测的系统，方法和装置

    公开(公告)号：US09165567B2

    公开(公告)日：2015-10-20

    申请号：US13092502

    申请日：2011-04-22

    申请人： Erik Visser ,  Ian Ernan Liu ,  Jongwon Shin

    发明人： Erik Visser ,  Ian Ernan Liu ,  Jongwon Shin

    IPC分类号： G10L21/00 ,  G10L25/78

    CPC分类号： G10L25/78

    摘要： Implementations and applications are disclosed for detection of a transition in a voice activity state of an audio signal, based on a change in energy that is consistent in time across a range of frequencies of the signal. For example, such detection may be based on a time derivative of energy for each of a number of different frequency components of the signal.

    摘要翻译： 公开了实现和应用，用于基于在信号的频率范围内的时间上一致的能量变化来检测音频信号的语音活动状态中的转换。 例如，这种检测可以基于信号的多个不同频率分量中的每一个的能量的时间导数。

    Variable beamforming with a mobile platform
    25.
    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.

    MICROPHONE ARRAY SUBSET SELECTION FOR ROBUST NOISE REDUCTION
    27.
    发明申请
    MICROPHONE ARRAY SUBSET SELECTION FOR ROBUST NOISE REDUCTION 有权
    麦克风阵列选择减少噪声噪声

    公开(公告)号：US20120051548A1

    公开(公告)日：2012-03-01

    申请号：US13029582

    申请日：2011-02-17

    申请人： Erik Visser ,  Ernan Liu

    发明人： Erik Visser ,  Ernan Liu

    IPC分类号： H04R29/00

    CPC分类号： H04R3/005 ,  G10L21/0208 ,  G10L2021/02166

    摘要： A disclosed method selects a plurality of fewer than all of the channels of a multichannel signal, based on information relating to the direction of arrival of at least one frequency component of the multichannel signal.

    摘要翻译： 所公开的方法基于与多信道信号的至少一个频率分量的到达方向有关的信息来选择多通道信号的多于少于全部的信道。

    Headset for separation of speech signals in a noisy environment
    28.
    发明授权
    Headset for separation of speech signals in a noisy environment 有权
    用于在嘈杂环境中分离语音信号的耳机

    公开(公告)号：US07983907B2

    公开(公告)日：2011-07-19

    申请号：US11572409

    申请日：2005-07-22

    申请人： Erik Visser ,  Jeremy Toman ,  Tom Davis ,  Brian Momeyer

    发明人： Erik Visser ,  Jeremy Toman ,  Tom Davis ,  Brian Momeyer

    IPC分类号： G10L21/02 ,  H04B15/00

    CPC分类号： H04R3/005 ,  G10L21/0208 ,  G10L21/0272 ,  G10L2021/02161 ,  G10L2021/02165 ,  H04R2430/25

    摘要： A headset is constructed to generate an acoustically distinct speech signal in a noisy acoustic environment. The headset positions a pair of spaced-apart microphones near a user's mouth. The microphones each receive the user's speech, and also receive acoustic environmental noise. The microphone signals, which have both a noise and information component, are received into a separation process. The separation process generates a speech signal that has a substantial reduced noise component. The speech signal is then processed for transmission. In one example, the transmission process includes sending the speech signal to a local control module using a Bluetooth radio.

    摘要翻译： 耳机被构造成在噪声声学环境中产生声学上不同的语音信号。 耳机将一对间隔开的麦克风放在用户口附近。 麦克风各自接收用户的语音，并且还接收声学环境噪声。 具有噪声和信息分量的麦克风信号被接收到分离过程中。 分离过程产生具有显着降低的噪声分量的语音信号。 然后处理语音信号进行传输。 在一个示例中，传输过程包括使用蓝牙无线电将语音信号发送到本地控制模块。