公开(公告)号：US08972248B2

公开(公告)日：2015-03-03

申请号：US13616917

申请日：2012-09-14

申请人： Takeshi Otani ,  Taro Togawa ,  Masanao Suzuki ,  Shusaku Ito

发明人： Takeshi Otani ,  Taro Togawa ,  Masanao Suzuki ,  Shusaku Ito

IPC分类号： G10L21/00 ,  G10L21/038 ,  G10L13/00 ,  H03G5/00 ,  H04R29/00 ,  H03G3/00 ,  H03G9/00 ,  H04B1/00 ,  G10L25/90

CPC分类号： G10L21/038 ,  G10L25/90

摘要： A band broadening apparatus includes a processor configured to analyze a fundamental frequency based on an input signal bandlimited to a first band, generate a signal that includes a second band different from the first band based on the input signal, control a frequency response of the second band based on the fundamental frequency, reflect the frequency response of the second band on the signal that includes the second band and generate a frequency-response-adjusted signal that includes the second band, and synthesize the input signal and the frequency-response-adjusted signal.

摘要翻译： 频带扩展装置包括：处理器，被配置为基于对第一频带限制的输入信号频带分析基频;基于输入信号产生包括与第一频带不同的第二频带的信号，控制第二频带的频率响应 基于基频，反映第二频带对包括第二频带的信号的频率响应，并产生包括第二频带的频率响应调整信号，并且合成输入信号和频率响应调整 信号。

公开(公告)号：US08676571B2

公开(公告)日：2014-03-18

申请号：US13330100

申请日：2011-12-19

申请人： Takeshi Otani ,  Taro Togawa ,  Masanao Suzuki ,  Yasuji Ota

发明人： Takeshi Otani ,  Taro Togawa ,  Masanao Suzuki ,  Yasuji Ota

IPC分类号： G10L21/02

CPC分类号： H04R3/00 ,  G10L21/0208 ,  G10L21/0216 ,  G10L25/00 ,  G10L25/18 ,  G10L2025/932 ,  H04R2430/03 ,  H04R2499/11

摘要： An audio signal processing system including a time-frequency conversion unit which converts an audio signal in time domain into frequency domain in frame units so as to calculate a frequency spectrum of the audio signal, a spectral change calculation unit which calculates an amount of change between a frequency spectrum of a first frame and a frequency spectrum of a second frame before the first frame based on the frequency spectrum of the first frame and the frequency spectrum of the second frame, and a judgment unit which judges the type of the noise which is included in the audio signal of the first frame in accordance with the amount of spectral change.

摘要翻译： 一种音频信号处理系统，包括时间 - 频率转换单元，其将时域中的音频信号以帧为单位转换成频域，以便计算音频信号的频谱;频谱变化计算单元，其计算 基于第一帧的频谱和第二帧的频谱的第一帧的频谱和第一帧之前的第二帧的频谱，以及判断单元，其判断噪声的类型是 根据光谱变化量包括在第一帧的音频信号中。

公开(公告)号：US09093077B2

公开(公告)日：2015-07-28

申请号：US13532908

申请日：2012-06-26

申请人： Takeshi Otani ,  Masanao Suzuki ,  Taro Togawa

发明人： Takeshi Otani ,  Masanao Suzuki ,  Taro Togawa

IPC分类号： H04B3/20 ,  G10L21/0208

CPC分类号： G10L21/0208 ,  G10L2021/02082

摘要： A reverberation suppression device includes an analyzer configured to analyze change over time in the power of an input signal obtained from a microphone in response to sound input, and thereby compute the decrease per unit time in the power of the input signal in a reverb segment following the end of a segment in which the sound is produced; and a suppression controller configured to control a suppression gain which indicates the rate at which the input signal is attenuated, on the basis of analysis results from the analyzer.

摘要翻译： 混响抑制装置包括：分析器，其被配置为分析响应于声音输入从麦克风获得的输入信号的功率随时间的变化，并且由此计算随后的混响段中的输入信号的功率的每单位时间的减小 在其中产生声音的段的末端; 以及抑制控制器，被配置为基于来自分析器的分析结果来控制指示输入信号被衰减的速率的抑制增益。

公开(公告)号：US20120078632A1

公开(公告)日：2012-03-29

申请号：US13158812

申请日：2011-06-13

申请人： Taro Togawa ,  Shusaku Ito ,  Takeshi Otani ,  Masanao Suzuki ,  Yasuji Ota

发明人： Taro Togawa ,  Shusaku Ito ,  Takeshi Otani ,  Masanao Suzuki ,  Yasuji Ota

IPC分类号： G10L13/00

CPC分类号： G10L21/038 ,  G10L25/27

摘要： An optical device includes a fast Fourier transform (FFT) unit, a signal noise ratio (SNR) calculation processing unit, a band selecting unit, an extension-signal creating unit, an addition unit, and an inverse fast Fourier transform (IFFT) unit. The FFT unit performs the Fourier transform on an input signal that is input from the outside. The SNR calculation processing unit calculates an SNR with respect to each of bands in the input signal. The band selecting unit selects a band of which SNR exceeds a threshold and is the maximum SNR, based on respective SNRs of the bands. The extension-signal creating unit creates an extension signal based on a signal acquired by the band selecting unit. The addition unit adds the extension signal to the input signal, and creates a band-extended signal. The IFFT unit performs the inverse fast Fourier transform on the band-extended signal, and creates an output signal.

摘要翻译： 光学装置包括快速傅立叶变换（FFT）单元，信号噪声比（SNR）计算处理单元，频带选择单元，扩展信号创建单元，加法单元和快速傅里叶逆变换（IFFT）单元 。 FFT单元对从外部输入的输入信号进行傅里叶变换。 SNR计算处理单元针对输入信号中的每个频带计算SNR。 频带选择单元基于频带的相应SNR来选择SNR超过阈值的频带并且是最大SNR。 扩展信号创建单元基于由频带选择单元获取的信号来创建扩展信号。 加法单元将扩展信号添加到输入信号，并产生频带扩展信号。 IFFT单元对频带扩展信号进行快速傅立叶反变换，并产生输出信号。

公开(公告)号：US08924199B2

公开(公告)日：2014-12-30

申请号：US13331209

申请日：2011-12-20

申请人： Chisato Ishikawa ,  Takeshi Otani ,  Taro Togawa ,  Masanao Suzuki ,  Masakiyo Tanaka

发明人： Chisato Ishikawa ,  Takeshi Otani ,  Taro Togawa ,  Masanao Suzuki ,  Masakiyo Tanaka

IPC分类号： G10L19/00 ,  G10L21/043 ,  G10L21/0364 ,  G10L21/057 ,  G10L25/90 ,  G10L25/84

CPC分类号： G10L21/043 ,  G10L21/0364 ,  G10L21/057 ,  G10L25/84 ,  G10L25/90

摘要： A voice correction device includes a detector that detects a response from a user, a calculator that calculates an acoustic characteristic amount of an input voice signal, an analyzer that outputs an acoustic characteristic amount of a predetermined amount when having acquired a response signal due to the response from the detector, a storage unit that stores the acoustic characteristic amount output by the analyzer, a controller that calculates an correction amount of the voice signal on the basis of a result of a comparison between the acoustic characteristic amount calculated by the calculator and the acoustic characteristic amount stored in the storage unit, and a correction unit that corrects the voice signal on the basis of the correction amount calculated by the controller.

摘要翻译： 声音校正装置包括检测来自用户的响应的检测器，计算输入声音信号的声学特征量的计算器，当由于该声音信号获取了响应信号而输出预定量的声学特征量时的分析器 来自检测器的响应，存储由分析仪输出的声学特征量的存储单元，控制器，其基于由计算器计算的声学特征量与第二声音信号的比较结果来计算语音信号的校正量 存储在存储单元中的声学特征量，以及基于由控制器计算出的校正量来校正语音信号的校正单元。

公开(公告)号：US20120095755A1

公开(公告)日：2012-04-19

申请号：US13330100

申请日：2011-12-19

申请人： Takeshi Otani ,  Taro Togawa ,  Masanao Suzuki ,  Yasuji Ota

发明人： Takeshi Otani ,  Taro Togawa ,  Masanao Suzuki ,  Yasuji Ota

IPC分类号： G10L21/02

CPC分类号： H04R3/00 ,  G10L21/0208 ,  G10L21/0216 ,  G10L25/00 ,  G10L25/18 ,  G10L2025/932 ,  H04R2430/03 ,  H04R2499/11

摘要： An audio signal processing system including a time-frequency conversion unit which converts an audio signal in time domain into frequency domain in frame units so as to calculate a frequency spectrum of the audio signal, a spectral change calculation unit which calculates an amount of change between a frequency spectrum of a first frame and a frequency spectrum of a second frame before the first frame based on the frequency spectrum of the first frame and the frequency spectrum of the second frame, and a judgment unit which judges the type of the noise which is included in the audio signal of the first frame in accordance with the amount of spectral change.

摘要翻译： 一种音频信号处理系统，包括时间 - 频率转换单元，其将时域中的音频信号以帧为单位转换成频域，以便计算音频信号的频谱;频谱变化计算单元，其计算 基于第一帧的频谱和第二帧的频谱的第一帧的频谱和第一帧之前的第二帧的频谱，以及判断单元，其判断噪声的类型是 根据光谱变化量包括在第一帧的音频信号中。

公开(公告)号：US20100273522A1

公开(公告)日：2010-10-28

申请号：US12659850

申请日：2010-03-23

申请人： Yasuji Ota ,  Masanao Suzuki ,  Kaori Endo ,  Takeshi Otani ,  Taro Togawa

发明人： Yasuji Ota ,  Masanao Suzuki ,  Kaori Endo ,  Takeshi Otani ,  Taro Togawa

IPC分类号： H04W88/02 ,  H04R29/00

CPC分类号： H04R3/00 ,  H04R2410/05 ,  H04R2420/07 ,  H04W8/005 ,  H04W24/00 ,  H04W24/10 ,  H04W88/02

摘要： In a wireless communication apparatus, an ambient apparatus number measurement unit measures the number of wireless apparatuses existing around. A movement amount measurement unit detects acceleration at the time when its own apparatus moves and measures the movement amount of its own apparatus. An ambient sound analysis unit records ambient sounds and analyzes the recorded ambient sounds to generate ambient sound analysis information. A communication controller estimates surroundings of its own apparatus based on at least one of the number of the measured wireless apparatuses, the measured movement amount, and the ambient sound analysis information, and autonomously performs a communication control of its own apparatus according to the estimated surroundings.

摘要翻译： 在无线通信装置中，环境设备号测量单元测量周围存在的无线设备的数量。 移动量测量单元检测自身装置移动时的加速度，并测量其本身装置的移动量。 环境声音分析单元记录环境声音并分析所记录的环境声音以产生环境声音分析信息。 通信控制器基于所测量的无线设备的数量，测量的移动量和环境声音分析信息中的至少一个来估计其自己的设备的环境，并且根据估计的环境自主地执行其自己的设备的通信控制 。

公开(公告)号：US20130077798A1

公开(公告)日：2013-03-28

申请号：US13532908

申请日：2012-06-26

申请人： Takeshi Otani ,  Masanao Suzuki ,  Taro Togawa

发明人： Takeshi Otani ,  Masanao Suzuki ,  Taro Togawa

IPC分类号： H04B3/20 ,  H03G3/20

CPC分类号： G10L21/0208 ,  G10L2021/02082

摘要： A reverberation suppression device includes an analyzer configured to analyze change over time in the power of an input signal obtained from a microphone in response to sound input, and thereby compute the decrease per unit time in the power of the input signal in a reverb segment following the end of a segment in which the sound is produced; and a suppression controller configured to control a suppression gain which indicates the rate at which the input signal is attenuated, on the basis of analysis results from the analyzer.

摘要翻译： 混响抑制装置包括：分析器，其被配置为分析响应于声音输入从麦克风获得的输入信号的功率随时间的变化，并且由此计算随后的混响段中的输入信号的功率的每单位时间的减小 在其中产生声音的段的末端; 以及抑制控制器，被配置为基于来自分析器的分析结果来控制指示输入信号被衰减的速率的抑制增益。

公开(公告)号：US08558691B2

公开(公告)日：2013-10-15

申请号：US12457546

申请日：2009-06-15

申请人： Yasuji Ota ,  Masanao Suzuki ,  Masakiyo Tanaka ,  Taro Togawa

发明人： Yasuji Ota ,  Masanao Suzuki ,  Masakiyo Tanaka ,  Taro Togawa

IPC分类号： G08B1/08

CPC分类号： H04M11/002

摘要： A sensing apparatus which controls the detection timing of a sensor by a prescribed guidance signal includes a guidance signal analyzing unit for analyzing the prescribed guidance signal, and a sensing control unit for determining, based on the result of the detection, an effective detection period during which an output of the sensor is effective.

公开(公告)号：US20090256705A1

公开(公告)日：2009-10-15

申请号：US12457546

申请日：2009-06-15

申请人： Yasuji Ota ,  Masanao Suzuki ,  Masakiyo Tanaka ,  Taro Togawa

发明人： Yasuji Ota ,  Masanao Suzuki ,  Masakiyo Tanaka ,  Taro Togawa

IPC分类号： G08B21/00

CPC分类号： H04M11/002

摘要： A sensing apparatus which controls the detection timing of a sensor by a prescribed guidance signal includes a guidance signal analyzing unit for analyzing the prescribed guidance signal, and a sensing control unit for determining, based on the result of the detection, an effective detection period during which an output of the sensor is effective.

摘要翻译： 通过规定的引导信号控制传感器的检测定时的检测装置包括：用于分析规定的引导信号的引导信号分析部;以及检测控制部，其根据检测结果，确定检测结果的有效检测期间 传感器的输出有效。