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    • 3. 发明申请
    • APPARATUS AND METHOD FOR DISCRIMINATING SPEECH, AND COMPUTER READABLE MEDIUM
    • 用于辨别语音的设备和方法,以及计算机可读介质
    • US20120232890A1
    • 2012-09-13
    • US13232469
    • 2011-09-14
    • Kaoru SuzukiMasaru SakaiYusuke Kida
    • Kaoru SuzukiMasaru SakaiYusuke Kida
    • G10L21/02G10L15/00
    • G10L25/78G10L25/18G10L2021/02082H04M9/082
    • According to one embodiment, an apparatus for discriminating speech/non-speech of a first acoustic signal includes a weight assignment unit, a feature extraction unit, and a speech/non-speech discrimination unit. The first acoustic signal includes a user's speech and a reproduced sound. The reproduced sound is a system sound having a plurality of channels reproduced from a plurality of speakers. The weight assignment unit is configured to assign a weight to each frequency band based on the system sound. The feature extraction unit is configured to extract a feature from a second acoustic signal based on the weight of each frequency band. The second acoustic signal is the first acoustic signal in which the reproduced sound is suppressed. The speech/non-speech discrimination unit is configured to discriminate speech/non-speech of the first acoustic signal based on the feature.
    • 根据一个实施例,用于识别第一声信号的语音/非语音的装置包括加权分配单元,特征提取单元和语音/非语音识别单元。 第一声​​信号包括用户的语音和再现的声音。 再现的声音是具有从多个扬声器再现的多个声道的系统声音。 权重分配单元被配置为基于系统声音为每个频带分配权重。 特征提取单元被配置为基于每个频带的权重从第二声信号提取特征。 第二声信号是抑制再生声音的第一声信号。 语音/非语音识别单元被配置为基于特征来区分第一声信号的语音/非语音。
    • 5. 发明申请
    • INVERTED VEHICLE AND ITS CONTROL METHOD
    • 反转车及其控制方法
    • US20150259021A1
    • 2015-09-17
    • US14435665
    • 2012-10-16
    • Takahiro KAYAMAYusuke KIDATetsuya TAIRAHiroshi BITOH
    • Takahiro NakayamaYusuke KidaTetsuya TairaHiroshi Bitoh
    • B62K3/00G05D13/62G05B9/02
    • B62K3/007B62K3/00B62K11/007B62K17/00G05B9/02G05D1/08G05D1/0891G05D13/62
    • An inverted vehicle comprises a first sensor that detects an angular speed around an axis inclined from a pitch axis by a first predetermined angle, a second sensor that detects an angular speed around an axis inclined from the pitch axis by a second predetermined angle, a third sensor that detects an angular speed around the pitch axis, an acceleration detection unit that detects accelerations along the axes, and a control unit that performs the inversion control based on the detected angular speeds. A control unit puts a specific safety function in motion based on a mutual relation among a first angular speed around the pitch axis calculated based on the angular speeds detected by the first and second sensors, a second angular speed around the pitch axis detected by the third sensor, and a third angular speed around the pitch axis calculated based on the detected accelerations.
    • 反转车辆包括第一传感器,其检测围绕从俯仰轴倾斜第一预定角度的轴线的角速度;第二传感器,其检测围绕从俯仰轴倾斜第二预定角度的轴线的角速度;第三传感器, 传感器,其检测围绕俯仰轴的角速度;加速度检测单元,其检测沿着轴的加速度;以及控制单元,其基于检测到的角速度执行反转控制。 控制单元基于由基于由第一和第二传感器检测的角速度计算出的俯仰轴之间的第一角速度之间的相互关系而使特定的安全功能运动,围绕由第三传感器检测的俯仰轴的第二角速度 传感器以及基于检测到的加速度计算的围绕俯仰轴的第三角速度。
    • 6. 发明申请
    • APPARATUS AND METHOD FOR CALCULATING A FUNDAMENTAL FREQUENCY CHANGE
    • 计算基本频率变化的装置和方法
    • US20100082336A1
    • 2010-04-01
    • US12556382
    • 2009-09-09
    • Yusuke KidaTakashi Masuko
    • Yusuke KidaTakashi Masuko
    • G10L21/00
    • G10L25/90
    • A logarithmic frequency spectrum within a predetermined time range is calculated from a speech signal. The logarithmic frequency spectrum has a frequency element at equal intervals along a logarithmic frequency axis. A logarithmic frequency spectrogram is calculated by connecting a plurality of logarithmic frequency spectrums. A value of the frequency element along a straight line on the logarithmic frequency spectrogram is voted onto a Hough plane. The Hough plane has a voted value in correspondence with a gradient of the straight line. The voted value above a threshold and the gradient corresponding to the voted value are extracted from the Hough plane. A fundamental frequency change is calculated using the voted value and the gradient extracted.
    • 根据语音信号计算预定时间范围内的对数频谱。 对数频谱沿着对数频率轴具有相等间隔的频率元素。 通过连接多个对数频谱来计算对数频谱图。 在对数频谱图上沿着直线的频率元素的值被投票在霍夫平面上。 霍普飞机具有与直线的梯度对应的投票价值。 从霍夫平面中提取高于阈值的投票值和对应于投票值的梯度。 使用投票值和提取的梯度计算基本频率变化。
    • 8. 发明授权
    • Apparatus and method for calculating a fundamental frequency change
    • 用于计算基频变化的装置和方法
    • US08554546B2
    • 2013-10-08
    • US12556382
    • 2009-09-09
    • Yusuke KidaTakashi Masuko
    • Yusuke KidaTakashi Masuko
    • G10L19/00
    • G10L25/90
    • A logarithmic frequency spectrum within a predetermined time range is calculated from a speech signal. The logarithmic frequency spectrum has a frequency element at equal intervals along a logarithmic frequency axis. A logarithmic frequency spectrogram is calculated by connecting a plurality of logarithmic frequency spectrums. A value of the frequency element along a straight line on the logarithmic frequency spectrogram is voted onto a Hough plane. The Hough plane has a voted value in correspondence with a gradient of the straight line. The voted value above a threshold and the gradient corresponding to the voted value are extracted from the Hough plane. A fundamental frequency change is calculated using the voted value and the gradient extracted.
    • 根据语音信号计算预定时间范围内的对数频谱。 对数频谱沿着对数频率轴具有相等间隔的频率元素。 通过连接多个对数频谱来计算对数频谱图。 在对数频谱图上沿着直线的频率元素的值被投票在霍夫平面上。 霍普飞机具有与直线的梯度对应的投票价值。 从霍夫平面中提取高于阈值的投票值和对应于投票值的梯度。 使用投票值和提取的梯度计算基本频率变化。
    • 10. 发明申请
    • APPARATUS, METHOD AND COMPUTER PROGRAM PRODUCT FOR FEATURE EXTRACTION
    • 用于特征提取的装置,方法和计算机程序产品
    • US20090222259A1
    • 2009-09-03
    • US12366037
    • 2009-02-05
    • Yusuke KidaTakashi Masuko
    • Yusuke KidaTakashi Masuko
    • G10L11/04
    • G10L15/02G10L25/06G10L25/90
    • A feature extraction apparatus includes a spectrum calculating unit that calculates, based on an input speech signal, a frequency spectrum having frequency components obtained at regular intervals on a logarithmic frequency scale for each of frames that are defined by regular time intervals, and thereby generates a time series of the frequency spectrum; a cross-correlation coefficients calculating unit that calculates, for each target frame of the frames, a cross-correlation coefficients between frequency spectra calculated for two different frames that are in vicinity of the target frame and a predetermined frame width apart from each other; and a shift amount predicting unit that predicts a shift amount of the frequency spectra on the logarithmic frequency scale with respect to the predetermined frame width by use of the cross-correlation coefficients.
    • 特征提取装置包括频谱计算单元,该频谱计算单元基于输入的语音信号,以规则的时间间隔以规律的间隔对每个由规则的时间间隔定义的帧进行频率分量的频谱,从而生成 时间序列的频谱; 互相关系数计算单元,对于帧的每个目标帧,计算针对在目标帧附近的两个不同帧计算的频谱与彼此分开的预定帧宽度的互相关系数; 以及偏移量预测单元,其通过使用互相关系数来预测相对于预定帧宽度的对数频谱上的频谱的偏移量。