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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

US20080260172A1 Echo Canceller and Speech Processing Apparatus 失效
标题翻译：回声消除器和语音处理装置
公开(公告)号：US20080260172A1
公开(公告)日：2008-10-23
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： H04B3/20
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。

3. 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。

4. 发明授权

US08913737B2 Echo canceller and microphone apparatus 有权
标题翻译：回声消除器和麦克风设备
公开(公告)号：US08913737B2
公开(公告)日：2014-12-16
申请号：US11505115
申请日：2006-08-16
申请人： Takayoshi Kawaguchi , Yohei Sakuraba
发明人： Takayoshi Kawaguchi , Yohei Sakuraba
IPC分类号： H04M9/08
CPC分类号： H04M9/082
摘要： An echo canceller for executing adaptive processing for canceling an echo component mixed with an audio input signal includes a volume ratio learner configured to compute a volume ratio between an audio output signal externally outputted and the audio input signal mixed with an echo component caused by reflection of the audio output signal to the audio input signal, thereby learning the volume ratio in a regular status in own apparatus, a double-talk detector configured to detect the double-talk status depending on whether a this-time volume ratio computed this time adapts to a double-talk status predicted by the learning of volume ratio and an echo cancel processor configured to control a learning operation of the echo component for the adaptive processing on the basis of a result of the double-talk status detection by the double-talk detector.
摘要翻译：用于执行用于消除与音频输入信号混合的回波分量的自适应处理的回波消除器包括体积比学习器，其被配置为计算外部输出的音频输出信号与由回波分量混合的音频输入信号之间的体积比，音频输出信号输入到音频输入信号，从而在自己的装置中学习常规状态的体积比，双方通话检测器，被配置为根据本次计算的这个时间体积比是否适应于通过体积比学习预测的双方通话状态和回波消除处理器，其被配置为基于双方通话检测器的双方通话状态检测的结果来控制用于自适应处理的回波分量的学习操作。

5. 发明申请

US20070041576A1 Echo canceller and microphone apparatus 有权
标题翻译：回声消除器和麦克风设备
公开(公告)号：US20070041576A1
公开(公告)日：2007-02-22
申请号：US11505115
申请日：2006-08-16
申请人： Takayoshi Kawaguchi , Yohei Sakuraba
发明人： Takayoshi Kawaguchi , Yohei Sakuraba
IPC分类号： A61F11/06 , H04M9/08 , G10K11/16 , H03B29/00
CPC分类号： H04M9/082
摘要： An echo canceller for executing adaptive processing for canceling an echo component mixed with an audio input signal includes a volume ratio learner configured to compute a volume ratio between an audio output signal externally outputted and the audio input signal mixed with an echo component caused by reflection of the audio output signal to the audio input signal, thereby learning the volume ratio in a regular status in own apparatus, a double-talk detector configured to detect the double-talk status depending on whether a this-time volume ratio computed this time adapts to a double-talk status predicted by the learning of volume ratio and an echo cancel processor configured to control a learning operation of the echo component for the adaptive processing on the basis of a result of the double-talk status detection by the double-talk detector.
摘要翻译：用于执行用于消除与音频输入信号混合的回波分量的自适应处理的回波消除器包括体积比学习器，其被配置为计算外部输出的音频输出信号与由回波分量混合的音频输入信号之间的体积比，音频输出信号输入到音频输入信号，从而在自己的装置中学习常规状态的体积比，双方通话检测器，被配置为根据本次计算的这个时间体积比是否适应于通过体积比学习预测的双方通话状态和回波消除处理器，其被配置为基于双方通话检测器的双方通话状态检测的结果来控制用于自适应处理的回波分量的学习操作。

6. 发明申请

US20090086993A1 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：US20090086993A1
公开(公告)日：2009-04-02
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 , H04N7/14
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。

7. 发明授权

US07804965B2 Microphone system and microphone apparatus 失效
标题翻译：麦克风系统和麦克风设备
公开(公告)号：US07804965B2
公开(公告)日：2010-09-28
申请号：US11242085
申请日：2005-10-04
申请人： Takayoshi Kawaguchi , Hiroyuki Yasui
发明人： Takayoshi Kawaguchi , Hiroyuki Yasui
IPC分类号： H04B3/00 , H04H20/47 , H04R5/00
CPC分类号： H04R3/005 , H04N7/147 , H04N7/15
摘要： A microphone system including a main unit for controlling the entire system and microphones having cascade connections from the main unit assuming the main-unit side upstream and the opposite side downstream. The microphone includes communication control means for controlling data transmitted between the main unit and microphones, sound input means for converting collected sound into a digital signal, echo cancellation means for eliminating an echo component in the sound signal, and sound-information generation means for updating the sound information by adding the sound signal of the self-microphone to the sound information of the downstream microphones and upstream transmitting the up data including the updated sound information. The microphone transmits the down data transmitted from the main unit to the down-most microphone in sequence in accordance with the cascade connection and transmits the up data from the down-most microphone to the main unit in reverse sequence.
摘要翻译：一种麦克风系统，包括用于控制整个系统的主单元和具有来自主单元的级联连接的麦克风，假设主单元侧上游和相对侧下游。麦克风包括用于控制在主单元和麦克风之间传输的数据的通信控制装置，用于将收集的声音转换为数字信号的声音输入装置，用于消除声音信号中的回声分量的回声消除装置，以及用于更新的声音信息产生装置通过将自发麦克风的声音信号添加到下游麦克风的声音信息和向上游发送包括更新的声音信息的上行数据的声音信息。麦克风根据级联连接将从主机发送的下行数据顺序发送到最低级的麦克风，并将倒数据从最低级麦克风反向传送到主机。

8. 发明申请

US20080246833A1 VIDEO CONFERENCING APPARATUS, CONTROL METHOD, AND PROGRAM 审中-公开
标题翻译：视频会议设备，控制方法和程序
公开(公告)号：US20080246833A1
公开(公告)日：2008-10-09
申请号：US12062335
申请日：2008-04-03
申请人： Hiroyuki YASUI , Takayoshi Kawaguchi
发明人： Hiroyuki YASUI , Takayoshi Kawaguchi
IPC分类号： H04N7/14
CPC分类号： H04N7/142 , H04N7/15
摘要： A video conferencing apparatus for video conferencing includes: a light emission control means for allowing a light emitting means for emitting a light that is included in a sound collecting means for collecting a sound to emit a light in a certain light emission pattern; a light emitting position detecting means for detecting a light emitting position that is a position of the light in an image obtained by imaging the light from the light emitting means included in the sound collecting means by a first imaging means for imaging; an arranging direction detecting means for detecting an arranging direction that is a direction in which the sound collecting means is arranged based on the light emitting position; and an imaging control means for controlling an imaging direction that is a direction in which a second imaging means for imaging an image takes an image, based on the arranging direction.
摘要翻译：一种用于视频会议的视频会议装置包括：发光控制装置，用于允许发光装置发射包含在声音采集装置中的光，用于收集声音以一定的发光图案发光; 发光位置检测装置，用于通过用于成像的第一成像装置来检测作为通过对包括在声音采集装置中的发光装置对光进行成像而获得的图像中的光的位置的发光位置; 布置方向检测装置，用于基于所述发光位置检测作为布置所述声音收集装置的方向的布置方向; 以及成像控制装置，用于基于排列方向来控制作为用于对图像拍摄的第二成像装置拍摄图像的方向的成像方向。

9. 发明申请

US20070040903A1 Camera controller and teleconferencing system 失效
标题翻译：相机控制器和电话会议系统
公开(公告)号：US20070040903A1
公开(公告)日：2007-02-22
申请号：US11505197
申请日：2006-08-16
申请人： Takayoshi Kawaguchi
发明人： Takayoshi Kawaguchi
IPC分类号： H04N7/14
CPC分类号： H04N7/15 , H04N7/147
摘要： A teleconferencing system includes: a camera system for imaging a plurality of persons; a voice collector for capturing voices generated by a plurality of persons; and a transmitter for multiplexing an image signal acquired from the camera system and a voice signal acquired from the voice collector and transmitting a multiplexed signal via a communication line. The camera system includes: a camera; a driver for changing the viewing direction of the camera; and a camera controller for controlling the driver. The camera controller includes: a face position detection unit; a registration unit; a timing unit; a drive control unit; and a hold time control unit.
摘要翻译：电话会议系统包括：用于对多个人进行成像的照相机系统; 用于捕获由多个人产生的声音的语音收集器; 以及发送器，用于复用从相机系统获取的图像信号和从语音收集器获取的语音信号，并经由通信线路发送多路复用的信号。相机系统包括：相机; 用于改变相机的观看方向的驱动器; 以及用于控制驾驶员的照相机控制器。相机控制器包括：脸部位置检测单元; 注册单位; 定时单元驱动控制单元; 和保持时间控制单元。

10. 发明申请

US20060106836A1 Data processing system, data processing device, data processing method, and computer program 审中-公开
标题翻译：数据处理系统，数据处理设备，数据处理方法和计算机程序
公开(公告)号：US20060106836A1
公开(公告)日：2006-05-18
申请号：US10517060
申请日：2003-05-27
申请人： Madoka Masugi , Noboru Shimada , Makoto Oka , Takayoshi Kawaguchi , Yoshihito Ishibashi , Hiroshi Abe , Nobutaka Toyoshima
发明人： Madoka Masugi , Noboru Shimada , Makoto Oka , Takayoshi Kawaguchi , Yoshihito Ishibashi , Hiroshi Abe , Nobutaka Toyoshima
IPC分类号： G06F17/00 , G06F7/00
CPC分类号： H04L63/0869 , G06F21/33 , G06F21/445 , G06F21/6218 , H04L63/0435 , H04L63/061 , H04L63/0823 , H04L63/104 , H04L63/126 , H04L63/166 , H04L63/20 , H04L2463/102
摘要： A privilege management system enabling effective privilege management, such as confirmation processing of service receiving privileges and so forth, is realized. A group attribute certificate which has, as stored information, group identification information corresponding to a group which is a set of certain devices or certain users, and also has affixed an electronic signature of an issuer, is issued to a service reception entity, and verification is performed by means of signature verification for of the group attribute certificate presented from the user device regarding whether or not there has been tampering, screening is performed regarding whether or not this is a service-permitted group based on group identification information stored in the group attribute certificate by using a group information database, and determination is made regarding whether or not service can be provided, based on the screening. Centralized privilege confirmation corresponding to various user sets or device sets can be made, so management of individual privilege information can be omitted, thereby enabling effective privilege management.
摘要翻译：实现了能够进行有效特权管理的特权管理系统，例如服务接收特权的确认处理等。作为存储信息的组属性证书被发布到服务接收实体，作为存储信息，与特定设备或某些用户的集合对应的组标识信息，并且还附加了发行者的电子签名，并且验证通过对从用户装置呈现的组属性证书的签名验证来执行是否存在篡改，基于存储在该组中的组标识信息来执行是否是服务允许组的筛选通过使用组信息数据库的属性证书，并且基于筛选确定是否可以提供服务。可以进行与各种用户集或设备集相对应的集中式权限确认，可以省略对各个特权信息的管理，从而实现有效的权限管理。

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