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    Moving object equipped with ultra-directional speaker
    1.
    发明申请
    Moving object equipped with ultra-directional speaker 失效
    移动物体配备超声波扬声器

    公开(公告)号：US20070172076A1

    公开(公告)日：2007-07-26

    申请号：US10588816

    申请日：2005-02-10

    申请人： Kiyofumi Mori ,  Shunji Yoshida ,  Hiroshi Okuno ,  Kazuhiro Nakadai ,  Hiroshi Tsujino

    发明人： Kiyofumi Mori ,  Shunji Yoshida ,  Hiroshi Okuno ,  Kazuhiro Nakadai ,  Hiroshi Tsujino

    IPC分类号： H04B3/00

    CPC分类号： H04R3/12 ,  G10L15/20 ,  H04R1/403 ,  H04R5/027 ,  H04R2217/03 ,  H04R2430/01 ,  H04S7/303

    摘要： A moving object 1 equipped with ultra-directional speaker is provided with an emitter 44 for measuring a distance to a target 11 to which it is to provide a voice by using an ultrasonic transmit sensor 45 and an ultrasonic receive sensor 46 thereof, and for emitting an output signal having a predetermined sound level which is adjusted by an amplifier 34 with sound level adjusting function. The moving object 1 can thus transmit a voice having an optimal volume only to the specific target through parametric action.

    摘要翻译： 配备有超声波扬声器的移动物体1设置有发射器44，用于通过使用超声波发射传感器45和超声波接收传感器46来测量到要提供声音的目标11的距离，并且用于发射 具有预定声级的输出信号，其由具有声级调节功能的放大器34调节。 因此，移动物体1可以通过参数动作将具有最佳体积的声音传输到特定目标。

    Automatic Speech Recognition System
    3.
    发明申请
    Automatic Speech Recognition System 审中-公开
    自动语音识别系统

    公开(公告)号：US20090018828A1

    公开(公告)日：2009-01-15

    申请号：US10579235

    申请日：2004-11-12

    申请人： Kazuhiro Nakadai ,  Hiroshi Tsujino ,  Hiroshi Okuno

    发明人： Kazuhiro Nakadai ,  Hiroshi Tsujino ,  Hiroshi Okuno

    IPC分类号： G10L19/14

    CPC分类号： G10L15/20 ,  G10L21/028 ,  G10L2021/02166

    摘要： An automatic speech recognition system includes: a sound source localization module for localizing a sound direction of a speaker based on the acoustic signals detected by the plurality of microphones; a sound source separation module for separating a speech signal of the speaker from the acoustic signals according to the sound direction; an acoustic model memory which stores direction-dependent acoustic models that are adjusted to a plurality of directions at intervals; an acoustic model composition module which composes an acoustic model adjusted to the sound direction, which is localized by the sound source localization module, based on the direction-dependent acoustic models, the acoustic model composition module storing the acoustic model in the acoustic model memory; and a speech recognition module which recognizes the features extracted by a feature extractor as character information using the acoustic model composed by the acoustic model composition module.

    摘要翻译： 一种自动语音识别系统，包括：声源定位模块，用于基于由所述多个麦克风检测到的声信号来定位扬声器的声音方向; 声源分离模块，用于根据声音方向将扬声器的语音信号与声学信号分离; 声学模型存储器，其存储以间隔被调整到多个方向的方向相关的声学模型; 声学模型合成模块，其基于所述方向相关的声学模型，将声学模型组合模块存储在所述声学模型存储器中;声学模型组合模块，其将声学模型组合模块存储在所述声学模型存储器中; 以及语音识别模块，其使用由声学模型组合模块组成的声学模型识别由特征提取器提取的特征作为字符信息。

    Moving object equipped with ultra-directional speaker
    4.
    发明申请
    Moving object equipped with ultra-directional speaker 审中-公开
    移动物体配备超声波扬声器

    公开(公告)号：US20070183618A1

    公开(公告)日：2007-08-09

    申请号：US10588801

    申请日：2005-02-10

    申请人： Masamitsu Ishii ,  Shinichi Sakai ,  Hiroshi Okuno ,  Kazuhiro Nakadai ,  Hiroshi Tsujino

    发明人： Masamitsu Ishii ,  Shinichi Sakai ,  Hiroshi Okuno ,  Kazuhiro Nakadai ,  Hiroshi Tsujino

    IPC分类号： H04R1/02 ,  H04R3/00

    CPC分类号： H04R3/12 ,  H04R1/323 ,  H04R27/00 ,  H04R2201/401 ,  H04R2217/03 ,  H04R2430/20

    摘要： An ultra-directional speaker having a modulator 33 for modulating an ultrasonic carrier signal with an input electric signal from an audible sound signal source, and an emitter 44 for emitting an output of the modulator 33 is mounted in a moving object 1 having a target tracking system for sensing a target in a surrounding space in real time using the above-mentioned emitter 44. The moving object equipped with ultra-directional speaker can therefore transmit a voice only to a specific target through parametric action caused by the nonlinearity of finite amplitude of ultrasonic wave.

    摘要翻译： 具有调制器33的超方向扬声器安装在具有目标跟踪的移动物体1中，调制器33用于从可听见的声音信号源输入电信号调制超声波载波信号，发射器44用于发射调制器33的输出。 系统，用于使用上述发射器44实时地感测周围空间中的目标。 因此，配备有超声波扬声器的移动物体可以通过由超声波的有限幅度的非线性引起的参数化动作将声音传输到特定目标。

    Speech recognition apparatus and method recognizing a speech from sound signals collected from outside
    5.
    发明授权
    Speech recognition apparatus and method recognizing a speech from sound signals collected from outside 有权
    从外部收集的声音识别语音的语音识别装置和方法

    公开(公告)号：US08073690B2

    公开(公告)日：2011-12-06

    申请号：US11792052

    申请日：2005-12-02

    申请人： Kazuhiro Nakadai ,  Hiroshi Tsujino ,  Hiroshi Okuno ,  Shunichi Yamamoto

    发明人： Kazuhiro Nakadai ,  Hiroshi Tsujino ,  Hiroshi Okuno ,  Shunichi Yamamoto

    IPC分类号： G10L15/20

    CPC分类号： G10L15/20 ,  G10L21/028 ,  G10L2021/02166

    摘要： A voice recognition system (10) for improving the toughness of voice recognition for a voice input for which a deteriorated feature amount cannot be completely identified. The system comprises at least two sound detecting means (16a, 16b) for detecting a sound signal, a sound source localizing unit (21) for determining the direction of a sound source based on the sound signal, a sound source separating unit (23) for separating a sound by the sound source from the sound signal based on the sound source direction, a mask producing unit (25) for producing a mask value according to the reliability of the separation results, a feature extracting unit (27) for extracting the feature amount of the sound signal, and a voice recognizing unit (29) for applying the mask to the feature amount to recognize a voice from the sound signal.

    摘要翻译： 一种语音识别系统（10），用于提高不能完全识别恶化的特征量的语音输入的语音识别的韧性。 该系统包括用于检测声音信号的至少两个声音检测装置（16a，16b），用于基于声音信号确定声源的方向的声源定位单元（21），声源分离单元（23） 用于根据声源方向将来自声源的声音与声音信号分离，用于根据分离结果的可靠性产生掩码值的掩模产生单元（25），用于提取分离结果的特征提取单元（27） 声音信号的特征量，以及用于将该掩模应用于特征量以从声音信号识别语音的语音识别单元（29）。

    Sound-source separation system
    6.
    发明授权
    Sound-source separation system 有权
    声源分离系统

    公开(公告)号：US07987090B2

    公开(公告)日：2011-07-26

    申请号：US12187684

    申请日：2008-08-07

    申请人： Ryu Takeda ,  Kazuhiro Nakadai ,  Hiroshi Tsujino ,  Hiroshi Okuno

    发明人： Ryu Takeda ,  Kazuhiro Nakadai ,  Hiroshi Tsujino ,  Hiroshi Okuno

    IPC分类号： G10L19/14

    CPC分类号： G10L21/0272

    摘要： A system capable of reducing the influence of sound reverberation or reflection to improve sound-source separation accuracy. An original signal X(ω,f) is separated from an observed signal Y(ω,f) according to a first model and a second model to extract an unknown signal E(ω,f). According to the first model, the original signal X(ω,f) of the current frame f is represented as a combined signal of known signals S(ω,f−m+1) (m=1 to M) that span a certain number M of current and previous frames. This enables extraction of the unknown signal E(ω,f) without changing the window length while reducing the influence of reverberation or reflection of the known signal S(ω,f) on the observed signal Y(ω,f).

    摘要翻译： 一种能够减少声音混响或反射影响以提高声源分离精度的系统。 根据第一模型和第二模型将原始信号X（ω，f）与观测信号Y（ω，f）分离，以提取未知信号E（ω，f）。 根据第一模型，当前帧f的原始信号X（ω，f）被表示为已知信号S（ω，f-m + 1）（m = 1至M）的组合信号，该信号跨越一定 当前帧和前一帧的M个。 这可以在不改变窗口长度的情况下提取未知信号E（ω，f），同时减少已知信号S（ω，f）的混响或反射对观测信号Y（ω，f）的影响。

    ROBOT
    7.
    发明申请
    ROBOT 有权
    机器人

    公开(公告)号：US20100011939A1

    公开(公告)日：2010-01-21

    申请号：US12503448

    申请日：2009-07-15

    申请人： Kazuhiro NAKADAI ,  Yuji Hasegawa ,  Hiroshi Tsujino ,  Kazumasa Murata ,  Ryu Takeda ,  Hiroshi Okuno

    发明人： Kazuhiro NAKADAI ,  Yuji Hasegawa ,  Hiroshi Tsujino ,  Kazumasa Murata ,  Ryu Takeda ,  Hiroshi Okuno

    IPC分类号： G10H1/40

    CPC分类号： G10H1/36 ,  A63H3/28 ,  G10H1/40 ,  G10H2240/135 ,  G10H2250/371 ,  G10H2250/455

    摘要： A robot includes: a sound collecting unit collecting and converting a musical sound into a musical acoustic signal; a voice signal generating unit generating a self-vocalized voice signal; a sound outputting unit converting the self-vocalized voice signal into a sound and outputting the sound; a self-vocalized voice regulating unit receiving the musical acoustic signal and the self-vocalized voice signal; a filtering unit performing a filtering process; a beat interval reliability calculating unit performing a time-frequency pattern matching process and calculating a beat interval reliability; a beat interval estimating unit estimating a beat interval; a beat time reliability calculating unit calculating a beat time reliability; a beat time estimating unit estimating a beat time on the basis of the calculated beat time reliability; a beat time predicting unit predicting a beat time before the current time; and a synchronization unit synchronizing the self-vocalized voice signal.

    摘要翻译： 机器人包括：收集单元，收集并将音乐声音转换成音乐声信号; 产生自发声音信号的语音信号产生单元; 声音输出单元，将自发声音信号转换成声音并输出声音; 接收音乐声音信号和自发声音信号的自发声音调节单元; 执行滤波处理的滤波单元; 节拍间隔可靠性计算单元，执行时间频率模式匹配处理并计算节拍间隔可靠性; 估计拍子间隔的拍子间隔估计单元; 节拍时间可靠性计算单元，计算节拍时间可靠性; 拍子时间估计单元，基于所计算的拍子时间可靠性来估计拍子时间; 拍子时间预测单元预测当前时间之前的拍子时间; 以及使自发声音信号同步的同步单元。