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：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：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：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：US20130028432A1

公开(公告)日：2013-01-31

申请号：US13450786

申请日：2012-04-19

申请人： Masanao SUZUKI ,  Takeshi Otani ,  Taro Togawa ,  Chisato Ishikawa

发明人： Masanao SUZUKI ,  Takeshi Otani ,  Taro Togawa ,  Chisato Ishikawa

IPC分类号： H04B3/20

CPC分类号： H04S7/305 ,  H04M9/082 ,  H04R2227/007 ,  H04R2499/11

摘要： A reverberation suppression device includes, a first storage unit configured to store, in advance, information representing a first impulse response obtained from a signal output from a microphone when a sound source positioned according to directivity of either a speaker or the microphone, which are mounted on a mobile terminal, outputs an impulse; a second storage unit configured to store information representing a second impulse response obtained from a signal output from the microphone when the speaker mounted on the mobile terminal outputs an impulse in a room where reverberation sound is to be suppressed; a response correction unit configured to obtain a corrected impulse response, which reflects the room's environment, by correcting the second impulse response, which is represented by the information stored in the second storage unit, using the information representing the first impulse response; and a sound correction unit configured to correct a sound signal

摘要翻译： 混响抑制装置包括：第一存储单元，被配置为当根据安装了扬声器或麦克风的方向性定位的声源时，预先存储表示从麦克风输出的信号获得的第一脉冲响应的信息 在移动终端上输出脉冲; 第二存储单元，被配置为当安装在移动终端上的扬声器输出在要抑制混响声音的房间中的脉冲时，存储表示从麦克风输出的信号获得的第二脉冲响应的信息; 响应校正单元，被配置为使用表示第一脉冲响应的信息来校正由存储在第二存储单元中的信息表示的第二脉冲响应来获得反映房间环境的校正脉冲响应; 以及声音校正单元，被配置为校正声音信号

公开(公告)号：US08392199B2

公开(公告)日：2013-03-05

申请号：US12470233

申请日：2009-05-21

申请人： Takeshi Otani ,  Masakiyo Tanaka ,  Yasuji Ota ,  Shusaku Ito

发明人： Takeshi Otani ,  Masakiyo Tanaka ,  Yasuji Ota ,  Shusaku Ito

IPC分类号： G10L19/00

CPC分类号： H04L1/20 ,  G10L21/02 ,  H03G3/002

摘要： A clipping detection device calculates an amplitude distribution of an input signal for each predetermined period, calculates a deflection degree of the distribution on the basis of the calculated amplitude distribution, and then detects clipping of a communication signal on the basis of the calculated deflection degree of the distribution.

摘要翻译： 剪辑检测装置针对每个预定周期计算输入信号的幅度分布，基于计算出的幅度分布来计算分布的偏转度，然后基于计算出的偏转程度来检测通信信号的限幅 分配。

公开(公告)号：US08208623B2

公开(公告)日：2012-06-26

申请号：US11863536

申请日：2007-09-28

申请人： Takeshi Otani ,  Masanao Suzuki ,  Yasuji Ota

发明人： Takeshi Otani ,  Masanao Suzuki ,  Yasuji Ota

IPC分类号： H04M9/08 ,  H04B3/20 ,  H04W74/00 ,  A61F11/06

CPC分类号： H04B3/23

摘要： In an echo processing method and device which can detect an accurate echo section without effects of a far end signal, an echo delay, and a reduction of an echo cancellation amount, a signal of a specified frequency band is generated in conformity with a near end signal, and the signal of the specified frequency band is added to the near end signal to form a transmitting signal. Receiving signals are separated into the signal of the specified frequency band and a signal of a band other than the specified frequency band. An echo section is detected based on the signal of the specified frequency band separated. An echo component in the signal of the band other than the specified frequency band is removed and a level of the echo component is detected based on the near end signal in the echo section. Each step may be performed with a digital signal, the transmitting signal may be converted into an analog signal to be inputted to a 2-wire/4-wire converter, the receiving signal may be outputted from the 2-wire/4-wire converter to be converted into the digital signal.

摘要翻译： 在不影响远端信号，回波延迟和回波消除量的降低的情况下能够检测精确回波部的回波处理方法和装置中，根据近端产生特定频带的信号 信号，将特定频带的信号加到近端信号上，形成发送信号。 接收信号被分离成指定频带的信号和除指定频带之外的频带的信号。 基于分离的指定频带的信号来检测回波部分。 除去指定频带之外的频带的信号中的回波分量，并且基于回波部分中的近端信号来检测回波分量的电平。 每个步骤可以用数字信号执行，发送信号可以被转换为要输入到2线/ 4线转换器的模拟信号，接收信号可以从2线/ 4线转换器 被转换为数字信号。

公开(公告)号：US20090245475A1

公开(公告)日：2009-10-01

申请号：US12407111

申请日：2009-03-19

申请人： Takeshi Otani ,  Yasuji Ota

发明人： Takeshi Otani ,  Yasuji Ota

IPC分类号： H04M3/22

CPC分类号： H04M3/002 ,  H04B3/493 ,  H04M3/085

摘要： A method for identifying among a plurality of devices, through which a voice communication path is connected, a device transmitting an echo signal onto the voice communication path, includes transmitting a predetermined signal to each of the devices from a predetermined portion on the voice communication path, receiving a response signal for the predetermined signal from each of the devices, measuring a period of time for the predetermined signal to travel from the predetermined portion to each of the devices and for the response signal to travel back to the predetermined portion, monitoring a upstream signal and a downstream signal traveling on the voice communication path, extracting an eco component from the downstream signal to determine an echo delay time, and comparing the period of time and the echo delay time to determine a device which causes the echo signal.

摘要翻译： 一种用于识别通过语音通信路径连接的多个设备之间的方法，用于在语音通信路径上发送回波信号的设备包括从语音通信路径上的预定部分向每个设备发送预定信号 从每个设备接收来自预定信号的响应信号，测量预定信号从预定部分行进到每个设备的时间段，并且响应信号返回到预定部分，监视一个 上行信号和在语音通信路径上行进的下行信号，从下游信号中提取生态分量以确定回波延迟时间，以及比较所述时间段和回波延迟时间以确定引起回波信号的装置。

公开(公告)号：US08265231B2

公开(公告)日：2012-09-11

申请号：US12407111

申请日：2009-03-19

申请人： Takeshi Otani ,  Yasuji Ota

发明人： Takeshi Otani ,  Yasuji Ota

IPC分类号： H04M1/24 ,  H04M3/08 ,  H04M3/22

CPC分类号： H04M3/002 ,  H04B3/493 ,  H04M3/085

摘要： A method for identifying among a plurality of devices, through which a voice communication path is connected, a device transmitting an echo signal onto the voice communication path, includes transmitting a predetermined signal to each of the devices from a predetermined portion on the voice communication path, receiving a response signal for the predetermined signal from each of the devices, measuring a period of time for the predetermined signal to travel from the predetermined portion to each of the devices and for the response signal to travel back to the predetermined portion, monitoring a upstream signal and a downstream signal traveling on the voice communication path, extracting an echo component from the downstream signal to determine an echo delay time, and comparing the period of time and the echo delay time to determine a device which causes the echo signal.

摘要翻译： 一种用于识别通过语音通信路径连接的多个设备之间的方法，用于在语音通信路径上发送回波信号的设备包括从语音通信路径上的预定部分向每个设备发送预定信号 从每个设备接收来自预定信号的响应信号，测量预定信号从预定部分行进到每个设备的时间段，并且响应信号返回到预定部分，监视一个 上行信号和在语音通信路径上行进的下行信号，从所述下行信号中提取回波分量，以确定回波延迟时间，并且比较所述时间周期和回波延迟时间以确定引起回波信号的装置。

公开(公告)号：US20080118055A1

公开(公告)日：2008-05-22

申请号：US11863536

申请日：2007-09-28

申请人： Takeshi Otani ,  Masanao Suzuki ,  Yasuji Ota

发明人： Takeshi Otani ,  Masanao Suzuki ,  Yasuji Ota

IPC分类号： H04M9/08

CPC分类号： H04B3/23

摘要： In an echo processing method and device which can detect an accurate echo section without effects of a far end signal, an echo delay, and a reduction of an echo cancellation amount, a signal of a specified frequency band is generated in conformity with a near end signal, and the signal of the specified frequency band is added to the near end signal to form a transmitting signal. Receiving signals are separated into the signal of the specified frequency band and a signal of a band other than the specified frequency band. An echo section is detected based on the signal of the specified frequency band separated. An echo component in the signal of the band other than the specified frequency band is removed and a level of the echo component is detected based on the near end signal in the echo section. Each step may be performed with a digital signal, the transmitting signal may be converted into an analog signal to be inputted to a 2-wire/4-wire converter, the receiving signal may be outputted from the 2-wire/4-wire converter to be converted into the digital signal.

摘要翻译： 在不影响远端信号，回波延迟和回波消除量的降低的情况下能够检测精确回波部的回波处理方法和装置中，根据近端产生特定频带的信号 信号，将特定频带的信号加到近端信号上，形成发送信号。 接收信号被分离成指定频带的信号和除指定频带之外的频带的信号。 基于分离的指定频带的信号来检测回波部分。 除去指定频带之外的频带的信号中的回波分量，并且基于回波部分中的近端信号来检测回波分量的电平。 每个步骤可以用数字信号执行，发送信号可以被转换为要输入到2线/ 4线转换器的模拟信号，接收信号可以从2线/ 4线转换器 被转换为数字信号。