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1. 发明授权

US08160239B2 Echo canceller and speech processing apparatus 失效
标题翻译：回波消除器和语音处理装置
公开(公告)号：US08160239B2
公开(公告)日：2012-04-17
申请号：US11872936
申请日：2007-10-16
申请人： Yohei Sakuraba , Nobuyuki Kihara , Takayoshi Kawaguchi
发明人： Yohei Sakuraba , Nobuyuki Kihara , Takayoshi Kawaguchi
IPC分类号： H04M9/08
CPC分类号： H04M9/082
摘要： An echo canceller used for hands-free communication systems in which hands-free communication is performed by using a speaker and a microphone is disclosed. The echo canceller includes a step size control unit calculating a step size value in an adaptive filter and an adaptive filter unit estimating an echo component of a feedback path from an input signal to the feedback path by adaptively identifying an impulse response of the feedback path formed by an acoustical coupling and the like of the speaker and the microphone, and subtracting the echo component from an output signal from the feedback path, in which the step size control unit calculates a step size value by using an echo reduction amount defined based on the ratio between the output signal from the feedback path and a residual signal and outputs the value to the adaptive filter unit.
摘要翻译：公开了一种用于通过使用扬声器和麦克风进行免提通信的免提通信系统的回声消除器。回波消除器包括步进大小控制单元，其计算自适应滤波器中的步长值，以及自适应滤波器单元，通过自适应地识别形成的反馈路径的脉冲响应来估计从输入信号到反馈路径的反馈路径的回波分量通过扬声器和麦克风的声耦合等，以及从反馈路径的输出信号中减去回波分量，其中步长控制单元通过使用基于所述反馈路径定义的回波减少量来计算步长值来自反馈路径的输出信号与残差信号之间的比值，并将该值输出到自适应滤波器单元。

2. 发明申请

US20090154692A1 Voice processing apparatus, voice processing system, and voice processing program 失效
标题翻译：语音处理装置，语音处理系统和语音处理程序
公开(公告)号：US20090154692A1
公开(公告)日：2009-06-18
申请号：US12316112
申请日：2008-12-09
申请人： Yohei Sakuraba , Yasuhiko Kato
发明人： Yohei Sakuraba , Yasuhiko Kato
IPC分类号： H04B3/20 , H04M9/08
CPC分类号： H04M9/082
摘要： A voice processing apparatus includes a band dividing portion dividing a first voice signal generated by a first microphone and a second voice signal generated by a second microphone into predetermined frequency bands, a sound source segregating portion segregating an echo component of a voice emitted by a first sound source included in a voice emitted by a second sound source in each of the predetermined frequency bands based on the power of the first and second microphones, and a band synthesis portion synthesizing the first and second voice signals from which the echo component of the first sound source has been segregated by the sound source segregating portion into a voice signal including the voice emitted by the first sound source and a voice signal including the echo component of the first sound source.
摘要翻译：一种语音处理装置，包括将由第一麦克风产生的第一语音信号和由第二麦克风产生的第二语音信号划分成预定频带的频带划分部分，分离由第一麦克风发出的声音的回波分量的声源分离部分声源包括在基于第一和第二麦克风的功率的每个预定频带中的由第二声源发出的声音中的声源，以及合成第一和第二语音信号的频带合成部分，其中第一声源已经被声源隔离部分隔离成包括由第一声源发出的声音的声音信号和包括第一声源的回波分量的声音信号。

3. 发明申请

US20090150151A1 Audio processing apparatus, audio processing system, and audio processing program 审中-公开
标题翻译：音频处理装置，音频处理系统和音频处理程序
公开(公告)号：US20090150151A1
公开(公告)日：2009-06-11
申请号：US12313334
申请日：2008-11-19
申请人： Yohei Sakuraba , Yasuhiko Kato
发明人： Yohei Sakuraba , Yasuhiko Kato
IPC分类号： G10L17/00
CPC分类号： G10L21/028 , G10L17/00 , G10L21/04
摘要： Disclosed herein is an audio processing apparatus for processing a plurality of pieces of audio data of sounds picked up by a plurality of microphones. The apparatus includes: a speaker identification section configured to identify a speaker based on the audio data; a simultaneous speech section identification section configured to, when at least first and second speakers have been identified, identify speech sections during which the first and second speakers have made speeches, and identify a section during which the first and second speakers have made the speeches at the same time as a simultaneous speech section; and an arranging section configured to separate audio data of the first speaker and audio data of the second speaker from the simultaneous speech section, and allow the audio data of the first speaker and the audio data of the second speaker to be outputted at mutually different timings.
摘要翻译：这里公开了一种用于处理由多个麦克风拾取的声音的多个音频数据的音频处理装置。该装置包括：扬声器识别部，被配置为基于音频数据识别扬声器; 同时语音部分识别部分，被配置为当已经识别出至少第一和第二扬声器时，识别第一和第二扬声器已经进行演讲的语音部分，并且识别第一和第二扬声器在其中发出演讲的部分同时作为同声传译部分; 以及布置部，被配置为将第一扬声器的音频数据和第二扬声器的音频数据与同步语音部分分离，并且允许第一说话者的音频数据和第二说话者的音频数据以相互不同的定时输出。

4. 发明申请

US20070206817A1 AUDIO PROCESSOR 失效
标题翻译：音频处理器
公开(公告)号：US20070206817A1
公开(公告)日：2007-09-06
申请号：US11681025
申请日：2007-03-01
申请人： Yohei Sakuraba , Yasuhiko Kato , Nobuyuki Kihara
发明人： Yohei Sakuraba , Yasuhiko Kato , Nobuyuki Kihara
IPC分类号： H04B3/20 , H04M9/08
CPC分类号： H04M9/082
摘要： An audio processor of a loud speech communication system including a speaker and a microphone is provided. The audio processor includes: an adaptive filter wherein an amount of update in a learning event is set to an arbitrary value, and a filter coefficient is serially determined corresponding to the set amount of update; a semi-fixed filter adapted to an echo cancellation process of an audio input signal input from the microphone; adaptive filter assessment unit that calculates a length of an update vector based on the filter coefficient determined by the adaptive filter and a length of an update vector based on a filter coefficient set in the semi-fixed filter and that performs assessment of the filter coefficients in accordance with the update vectors; and coefficient specifying unit that sets an optimal filter coefficient among the filter coefficients into the semi-fixed filter in accordance with the result of the assessment of the filter coefficients performed by the adaptive filter assessment unit.
摘要翻译：提供了包括扬声器和麦克风的大声语音通信系统的音频处理器。音频处理器包括：自适应滤波器，其中将学习事件中的更新量设置为任意值，并且根据设定的更新量对滤波器系数进行串行确定; 适用于从麦克风输入的音频输入信号的回波消除处理的半固定滤波器; 自适应滤波器评估单元，其基于由所述自适应滤波器确定的滤波器系数和基于在所述半固定滤波器中设置的滤波器系数的更新向量的长度来计算更新向量的长度，并且执行所述滤波器系数的估计按照更新向量; 以及系数指定单元，其根据由自适应滤波器评估单元执行的滤波器系数的评估结果，将滤波器系数中的最佳滤波器系数设置为半固定滤波器。

5. 发明申请

US20060195316A1 Voice detecting apparatus, automatic image pickup apparatus, and voice detecting method 审中-公开
标题翻译：语音检测装置，自动图像拾取装置和语音检测方法
公开(公告)号：US20060195316A1
公开(公告)日：2006-08-31
申请号：US11319470
申请日：2005-12-29
申请人： Yohei Sakuraba
发明人： Yohei Sakuraba
IPC分类号： G10L11/06
CPC分类号： G10L25/78
摘要： A voice detecting apparatus includes a first determining unit to determine that human voice has been input if a signal component having a harmonic structure is detected from an input voice signal; a second determining unit to determine that human voice has been input if a frequency center-of-gravity of the input voice signal is within a predetermined range; a noise level storing unit to store a noise level; a third determining unit to determine that human voice has been input if the ratio of the power of the input voice signal to the noise level is above a predetermined threshold; a final determining unit configured to finally determine whether human voice has been input based on determination results of the first to third determining units; and a noise level updating unit configured to update the noise level if the final determining unit determines that human voice has not been input.
摘要翻译：如果从输入语音信号检测出具有谐波结构的信号分量，则语音检测装置包括：第一确定单元，用于确定已经输入人声; 如果输入语音信号的频率重心在预定范围内，则确定已经输入人声的第二确定单元; 噪声电平存储单元，用于存储噪声电平; 第三确定单元，用于如果输入语音信号的功率与噪声电平的比率高于预定阈值，则确定已输入人声; 最终确定单元，被配置为基于第一至第三确定单元的确定结果来最终确定是否输入了人声; 以及噪声电平更新单元，被配置为如果最终确定单元确定还没有输入人声，则更新噪声电平。

6. 发明申请

US20130063539A1 SIGNAL PROCESSING APPARATUS, SIGNAL PROCESSING METHOD, AND PROGRAM 审中-公开
标题翻译：信号处理装置，信号处理方法和程序
公开(公告)号：US20130063539A1
公开(公告)日：2013-03-14
申请号：US13587042
申请日：2012-08-16
申请人： Yohei SAKURABA , Yasuhiko Kato , Nobuyuki Kihara , Takeshi Yamaguchi
发明人： Yohei SAKURABA , Yasuhiko Kato , Nobuyuki Kihara , Takeshi Yamaguchi
IPC分类号： H04N7/14
CPC分类号： H04N7/142 , H04N5/232 , H04N5/262 , H04R3/005 , H04R5/04 , H04R27/00 , H04R2227/003 , H04R2430/20 , H04R2499/11
摘要： A signal processing apparatus includes: an audio separator that separates audios into a first audio and a second audio using two inputted audio signals; an audio combiner that combines the first audio with the second audio based on proportions of the audios separated by the audio separator; and an image combiner that combines a first image corresponding to the first audio with a second image corresponding to the second audio based on the proportions of the audios separated by the audio separator.
摘要翻译：信号处理装置包括：音频分离器，其使用两个输入的音频信号将音频分离成第一音频和第二音频; 音频组合器，其基于由音频分离器分离的音频的比例来组合第一音频和第二音频; 以及图像组合器，其基于由音频分离器分离的音频的比例，将对应于第一音频的第一图像与对应于第二音频的第二图像组合。

7. 发明申请

US20130044890A1 INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD AND PROGRAM 审中-公开
标题翻译：信息处理设备，信息处理方法和程序
公开(公告)号：US20130044890A1
公开(公告)日：2013-02-21
申请号：US13553077
申请日：2012-07-19
申请人： Nobuyuki KIHARA , Yohei SAKURABA
发明人： Nobuyuki KIHARA , Yohei SAKURABA
IPC分类号： H04B3/20
CPC分类号： G10L21/0264 , G10L21/0232 , G10L2021/02082 , H04M9/082 , H04R3/02 , H04R2430/01
摘要： n information processing device includes: an estimating section which estimates an amplitude frequency function from a first signal output to a speaker and a second signal input from a microphone; a generating section which generates an estimated echo signal from the first signal and the amplitude frequency function; and a suppressing section which suppresses the estimated echo signal from the second signal, wherein the estimating section changes a coefficient of the amplitude frequency function on the basis of the correlation between the estimated amplitude frequency function and a short-time average amplitude frequency function.
摘要翻译： n信息处理装置包括：估计部，其从输出到扬声器的第一信号和从麦克风输入的第二信号估计振幅频率函数; 生成部，其从所述第一信号和所述振幅频率函数生成估计回波信号; 以及抑制部，其抑制来自所述第二信号的所述估计回波信号，其中，所述估计部基于所述估计振幅频率函数与短时平均振幅频率函数之间的相关性来改变所述振幅频率函数的系数。

8. 发明授权

US08194851B2 Voice processing apparatus, voice processing system, and voice processing program 失效
标题翻译：语音处理装置，语音处理系统和语音处理程序
公开(公告)号：US08194851B2
公开(公告)日：2012-06-05
申请号：US12316112
申请日：2008-12-09
申请人： Yohei Sakuraba , Yasuhiko Kato
发明人： Yohei Sakuraba , Yasuhiko Kato
IPC分类号： H04M9/08 , H04R29/00 , H04B15/00
CPC分类号： H04M9/082
摘要： A voice processing apparatus includes a band dividing portion dividing a first voice signal generated by a first microphone and a second voice signal generated by a second microphone into predetermined frequency bands, a sound source segregating portion segregating an echo component of a voice emitted by a first sound source included in a voice emitted by a second sound source in each of the predetermined frequency bands based on the power of the first and second microphones, and a band synthesis portion synthesizing the first and second voice signals from which the echo component of the first sound source has been segregated by the sound source segregating portion into a voice signal including the voice emitted by the first sound source and a voice signal including the echo component of the first sound source.
摘要翻译：一种语音处理装置，包括将由第一麦克风产生的第一语音信号和由第二麦克风产生的第二语音信号划分成预定频带的频带划分部分，分离由第一麦克风发出的声音的回波分量的声源分离部分声源包括在基于第一和第二麦克风的功率的每个预定频带中的由第二声源发出的声音中的声源，以及合成第一和第二语音信号的频带合成部分，其中第一声源已经被声源隔离部分隔离成包括由第一声源发出的声音的声音信号和包括第一声源的回波分量的声音信号。

9. 发明授权

US08098843B2 Sound source direction detecting apparatus, sound source direction detecting method, and sound source direction detecting camera 失效
标题翻译：声源方向检测装置，声源方向检测方法和声源方向检测摄像机
公开(公告)号：US08098843B2
公开(公告)日：2012-01-17
申请号：US12284455
申请日：2008-09-22
申请人： Takayoshi Kawaguchi , Yasuhiro Kodama , Yohei Sakuraba
发明人： Takayoshi Kawaguchi , Yasuhiro Kodama , Yohei Sakuraba
IPC分类号： H04R3/00 , H04N7/00
CPC分类号： G01S3/801 , G01S3/8083 , G01S3/86
摘要： Disclosed herein is a sound source direction detecting apparatus including: a plurality of microphones configured to collect sounds from a sound source in order to form an audio frame; a frequency decomposition section configured to decompose the audio frame into frequency components; an error range determination section configured to determine the effects of noises collected together with the sounds as an error range relative to phases; a power level dispersion section configured to disperse power levels of the sounds for each of the frequency components decomposed by the frequency decomposition section, on the basis of the error range determined by the error range determination section; a power level addition section configured to add the power levels dispersed by the power level dispersion section; and a sound source direction detection section configured to detect the direction of the sound source based on the phase at which is located the highest of the power levels added by the power level addition section.
摘要翻译：这里公开了一种声源方向检测装置，包括：多个麦克风，被配置为从声源收集声音以形成音频帧; 频率分解部，被配置为将音频帧分解成频率分量; 误差范围确定部分，被配置为将与所述声音一起收集的噪声的影响确定为相对于相位的误差范围; 功率电平分散部，其基于由所述误差范围确定部确定的误差范围，分配由所述频率分解部分解的每个频率分量的声音的功率电平; 功率电平相加部分，被配置为添加由功率电平分散部分分散的功率电平; 以及声源方向检测部，被配置为基于位于功率电平相加部附加的最高功率电平的相位来检测声源的方向。

10. 发明申请

US20140178049A1 IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM 审中-公开
标题翻译：图像处理设备，图像处理方法和程序
公开(公告)号：US20140178049A1
公开(公告)日：2014-06-26
申请号：US13823177
申请日：2012-08-01
申请人： Nobuyuki Kihara , Yohei Sakuraba , Takeshi Yamaguchi , Yasuhiko Kato
发明人： Nobuyuki Kihara , Yohei Sakuraba , Takeshi Yamaguchi , Yasuhiko Kato
IPC分类号： G11B27/036
CPC分类号： H04N5/262 , G03B31/00 , G10L15/26 , G10L2015/088 , H04N5/91 , H04N9/74 , H04N9/8211
摘要： This technology relates to an image processing apparatus, an image processing method, and a program, which enable easier addition of an effect to a moving image.In a portable terminal device, an ambient environmental sound and a voice uttered by a user are picked up by different sound pickup units when the moving image is shot. A keyword detecting unit detects a keyword determined in advance from the voice uttered by the user and an effect generating unit generates an image effect and a sound effect associated with the detected keyword. Then, an effect adding unit superposes the generated image effect on the shot moving image and synthesizes the generated sound effect with the environmental sound, thereby applying image effects and sound effects to the moving image. According to the portable terminal device, it is possible to easily add a desired effect to the moving image only by uttering the keyword while shooting the moving image. This technology may be applied to a mobile phone.
摘要翻译：该技术涉及一种图像处理装置，图像处理方法和程序，其使得能够更容易地向运动图像添加效果。在便携式终端装置中，当拍摄运动图像时，由不同的声音拾取单元拾取由用户发出的环境环境声音和语音。关键词检测单元从用户发出的语音中检测出预先确定的关键字，效果生成单元生成与检测到的关键字相关联的图像效果和声音效果。然后，效果添加单元将所产生的图像效果叠加在拍摄的运动图像上，并且利用环境声音合成生成的声音效果，从而将运动图像应用图像效果和声音效果。根据便携式终端装置，仅通过在拍摄运动图像时发出关键字，可以容易地向运动图像添加期望的效果。该技术可以应用于移动电话。

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