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1. 发明授权

US09286881B2 Echo canceler and echo detector 有权
标题翻译：回波消除器和回波检测器
公开(公告)号：US09286881B2
公开(公告)日：2016-03-15
申请号：US13990982
申请日：2012-03-29
申请人： Tomoharu Awano , Atsuyoshi Yano , Bunkei Matsuoka
发明人： Tomoharu Awano , Atsuyoshi Yano , Bunkei Matsuoka
IPC分类号： H04M9/08 , G10K11/16 , H04R3/02
CPC分类号： G10K11/16 , H04M9/082 , H04R3/02
摘要： An echo canceler includes a signal-to-echo ratio calculating unit 103 and a residual echo suppressing unit 105. The signal-to-echo ratio calculating unit 103 computes a signal-to-echo ratio SE(n) indicating a ratio of an echo component to a received signal x(n) from a first residual signal and a second residual signal. The first residual signal is obtained using a filter coefficient sequence of an update filter 102, which is obtained up to the previous operation. The second residual signal is obtained using an updated filter coefficient sequence that undergoes a coefficient update which is performed, using an arbitrary update step size μ(n), on the filter coefficient sequence of the update filter 102, which is obtained up to the previous operation. The residual echo suppressing unit 105 suppresses the echo component contained in the microphone input signal in accordance with the signal-to-echo ratio the signal-to-echo ratio calculating unit 103 computes.
摘要翻译：回波消除器包括信号回波比计算单元103和残留回波抑制单元105.信号与回波比计算单元103计算指示回波比的信号回波比SE（n）分量到来自第一残差信号和第二残差信号的接收信号x（n）。使用更新过滤器102的滤波器系数序列获得第一残差信号，该序列是直到先前的操作获得的。使用更新的滤波器系数序列获得第二残差信号，该更新的滤波器系数序列使用任意更新步长μ（n）对更新过滤器102的滤波器系数序列执行的系数更新，该更新滤波器系数序列直到先前操作。残留回波抑制单元105根据信号与回波比计算单元103计算的信号与回波比，抑制麦克风输入信号中包含的回波分量。

2. 发明申请

US20070110249A1 Method of acoustic signal reproduction 审中-公开
标题翻译：声信号再生方法
公开(公告)号：US20070110249A1
公开(公告)日：2007-05-17
申请号：US10582863
申请日：2004-12-07
申请人： Masaru Kimura , Bunkei Matsuoka
发明人： Masaru Kimura , Bunkei Matsuoka
IPC分类号： H04R5/00
CPC分类号： H04S1/002
摘要： Up to now, there have existed filters having a transfer function for canceling crosstalk components arriving from loudspeakers, at the listener's right/left ear, however, such filters have been incapable of properly reducing the inter-loudspeaker crosstalk components inside the casing of a mobile terminal. Therefore, when input signals are expected to produce stereophonic effects, three-dimensional sound image localization has not been realized in mobile terminals. In a method of acoustic signal reproduction in a mobile terminal with at least two loudspeakers accommodated inside the casing of the terminal, a crosstalk canceling method relating to the present invention comprises Processing Step 1 for reducing spatial crosstalk that is generated with respect to the input signals to the loudspeakers, in a space ranging from the loudspeaker to the listener's ears, and Processing Step 2 for reducing crosstalk that is generated between the loudspeakers inside the casing, with respect to Processing-Step-1-processed signals.
摘要翻译：迄今为止，存在一种滤波器，其具有用于消除从收音机的右/左耳朵到达扬声器的串扰分量的传递函数，然而，这种滤波器已经不能适当地减少移动台的壳体内的扬声器间串扰分量终奌站。因此，当预期输入信号产生立体声效果时，在移动终端中尚未实现三维声像定位。在具有容纳在终端的壳体内的至少两个扬声器的移动终端中的声信号再现方法中，涉及本发明的串扰消除方法包括处理步骤1，用于减少相对于输入信号产生的空间串扰相对于处理步骤1处理的信号，在从扬声器到收听者耳朵的空间中的扬声器以及用于减少在壳体内的扬声器之间产生的串扰的处理步骤2。

3. 发明授权

US06643618B2 Speech decoding unit and speech decoding method 失效
标题翻译：语音解码单元和语音解码方法
公开(公告)号：US06643618B2
公开(公告)日：2003-11-04
申请号：US09842095
申请日：2001-04-26
申请人： Bunkei Matsuoka , Hirohisa Tasaki
发明人： Bunkei Matsuoka , Hirohisa Tasaki
IPC分类号： G10L2102
CPC分类号： G10L19/012 , G10L2019/0012
摘要： A speech decoding unit estimates coding parameters of a speech pause by carrying out smoothing algorithm of the coding parameters by using a coding parameter xref constituting far-end talker background noise information extracted by a parameter extracting circuit 12, and a coding parameter xn used for synthesizing the previous background noise.
摘要翻译：语音解码单元通过使用构成由参数提取电路12提取的远端讲话人背景噪声信息的编码参数xref，以及用于合成的编码参数xn，通过执行编码参数的平滑算法来估计语音暂停的编码参数以前的背景噪音。

4. 发明申请

US20130251169A1 ECHO CANCELER AND ECHO DETECTOR 有权
标题翻译： ECHO CANCELER和ECHO DETECTOR
公开(公告)号：US20130251169A1
公开(公告)日：2013-09-26
申请号：US13990982
申请日：2012-03-29
申请人： Tomoharu Awano , Atsuyoshi Yano , Bunkei Matsuoka
发明人： Tomoharu Awano , Atsuyoshi Yano , Bunkei Matsuoka
IPC分类号： G10K11/16
CPC分类号： G10K11/16 , H04M9/082 , H04R3/02
摘要： An echo canceler includes a signal-to-echo ratio calculating unit 103 and a residual echo suppressing unit 105. The signal-to-echo ratio calculating unit 103 computes a signal-to-echo ratio SE(n) indicating a ratio of an echo component to a received signal x(n) from a first residual signal and a second residual signal. The first residual signal is obtained using a filter coefficient sequence of an update filter 102, which is obtained up to the previous operation. The second residual signal is obtained using an updated filter coefficient sequence that undergoes a coefficient update which is performed, using an arbitrary update step size μ(n), on the filter coefficient sequence of the update filter 102, which is obtained up to the previous operation. The residual echo suppressing unit 105 suppresses the echo component contained in the microphone input signal in accordance with the signal-to-echo ratio the signal-to-echo ratio calculating unit 103 computes.
摘要翻译：回波消除器包括信号回波比计算单元103和残留回波抑制单元105.信号与回波比计算单元103计算指示回波比的信号回波比SE（n）分量到来自第一残差信号和第二残差信号的接收信号x（n）。使用更新过滤器102的滤波器系数序列获得第一残差信号，该序列是直到先前的操作获得的。使用更新的滤波器系数序列获得第二残差信号，该更新的滤波器系数序列使用任意更新步长mu（n）对更新过滤器102的滤波器系数序列执行的系数更新，该更新滤波器系数序列直到先前操作。残留回波抑制单元105根据信号与回波比计算单元103计算的信号与回波比，抑制麦克风输入信号中包含的回波分量。

5. 发明申请

US20050176384A1 Communication device and communication device ringing method 审中-公开
标题翻译：通信设备和通信设备振铃方式
公开(公告)号：US20050176384A1
公开(公告)日：2005-08-11
申请号：US10513334
申请日：2003-06-09
申请人： Bunkei Matsuoka , Shinya Takahashi
发明人： Bunkei Matsuoka , Shinya Takahashi
IPC分类号： H04M1/00 , H04M19/04 , H04B1/40
CPC分类号： H04M19/04
摘要： A communication equipment unit producing an incoming call alert sound includes: main incoming call alert signal output means for outputting a main incoming call alert signal for sounding a main incoming call alert sound; advance incoming call alert signal output means for outputting an advance incoming call alert signal for sounding an advance incoming call alert sound; scheduling means for allowing the main incoming call alert signal output means and the advance incoming call alert signal output means to operate so that the main incoming call alert sound is produced after a predetermined period of time elapses since the advance incoming call alert sound is produced; and sound production means reducing the incoming call alert sound based on the main incoming call alert signal and the advance incoming call alert signal.
摘要翻译：产生来电警报声音的通信设备单元包括：主要呼叫警报信号输出装置，用于输出用于发出主要来电警报声音的主要来电警报信号; 提前进入呼叫警报信号输出装置，用于输出用于发出提前呼入警报声音的提前呼入警报信号; 调度装置，用于允许主要来电呼叫警报信号输出装置和提前来电呼叫警报信号输出装置的操作，使得在从提前呼入警报声音产生之后经过预定时间段之后产生主要来电警报声音; 并且声音产生意味着基于主要来电警报信号和提前呼入警报信号来减少呼入呼叫警报声音。

6. 发明申请

US20050123159A1 Portable accoustic apparatus 审中-公开
标题翻译：便携式声学仪器
公开(公告)号：US20050123159A1
公开(公告)日：2005-06-09
申请号：US10507422
申请日：2003-12-24
申请人： Bunkei Matsuoka , Yasutaka Mizutani
发明人： Bunkei Matsuoka , Yasutaka Mizutani
IPC分类号： H04M1/03 , H04R1/10 , H04R1/28 , H04R25/00
CPC分类号： H04M1/03 , H04M1/035 , H04R2499/11
摘要： A portable acoustic apparatus includes a sound outlet (3) formed in the front wall (61) of a housing (6); an acoustic converting element (1) fixed in the housing in such a manner that a front chamber (2) is formed between the acoustic converting element and the front wall (61), and a back chamber (4) is formed between the acoustic converting element and the back wall (62) of the housing (6); and a duct (5) that is formed in the front wall (61) around the sound outlet (3) and communicates to the outside of the housing. The minimum inner width W of the outer casing (63) of the housing (6) is made equal to or less than the standard diameter of the human concha.
摘要翻译：便携式声学装置包括形成在壳体（6）的前壁（61）中的声音出口（3）; 声学转换元件（1），固定在壳体中，使得在声转换元件和前壁（61）之间形成前腔室（2），并且在声转换器元件和壳体（6）的后壁（62）; 以及形成在声音出口（3）周围的前壁（61）中并且连通到壳体外部的导管（5）。壳体（6）的外壳（63）的最小内部宽度W被制成等于或小于人类外耳的标准直径。

7. 发明申请

US20120010738A1 AUDIO SIGNAL PROCESSING DEVICE 有权
标题翻译：音频信号处理装置
公开(公告)号：US20120010738A1
公开(公告)日：2012-01-12
申请号：US13257004
申请日：2010-05-17
申请人： Masaru Kimura , Bunkei Matsuoka , Takashi Yamazaki , Asako Omote
发明人： Masaru Kimura , Bunkei Matsuoka , Takashi Yamazaki , Asako Omote
IPC分类号： G06F17/00
CPC分类号： G10L21/038 , G10H1/0091 , G10H2210/066 , G10H2210/321 , G10H2240/061 , G10L25/90
摘要： An audio signal processing device 100 includes a period detecting unit 102 for detecting the fundamental period of an input audio signal 101; a square wave generating unit 106 for generating, according to the fundamental period the period detecting unit 102 detects, a square wave 107 whose period is an integer multiple of the fundamental period; an amplitude correction coefficient generating unit 103 for calculating an amplitude correction coefficient 109 approximately equal and proportional to the intensity of the input audio signal 101; a first multiplier 108 for generating an amplitude-corrected square wave 110 by multiplying the square wave 107 by the amplitude correction coefficient 109; and an adder 104 for adding the amplitude-corrected square wave 110 to the input audio signal 101.
摘要翻译：音频信号处理装置100包括用于检测输入音频信号101的基本周期的周期检测单元102; 方波产生单元106，用于根据周期检测单元102检测到的基本周期产生周期为基本周期的整数倍的方波107; 振幅校正系数生成单元103，用于计算大致等于并与输入音频信号101的强度成比例的幅度校正系数109; 用于通过将方波107乘以振幅校正系数109来产生振幅校正的方波110的第一乘法器108; 以及用于将振幅校正的方波110与输入音频信号101相加的加法器104。

8. 发明申请

US20100172505A1 AUDIO DEVICE 有权
标题翻译：音频设备
公开(公告)号：US20100172505A1
公开(公告)日：2010-07-08
申请号：US12663684
申请日：2008-08-11
申请人： Masaru Kimura , Bunkei Matsuoka
发明人： Masaru Kimura , Bunkei Matsuoka
IPC分类号： H04R5/00
CPC分类号： H04S1/002
摘要： A signal processing section 3 is set up which provides an anti-phase component signal S extracted by an anti-phase component extracting section 2 with a transfer characteristic (Hd+Hx)/(Hd−Hx); an adder 4 adds the phase-inverted signal of the anti-phase component signal S provided with the transfer characteristic by the signal processing section 3 and an in-phase component signal M extracted by an in-phase component extracting section 1; and an adder 5 adds the anti-phase component signal S provided with the transfer characteristic by the signal processing section 3 and the in-phase component signal M extracted by the in-phase component extracting section 1.
摘要翻译：设置信号处理部分3，其提供具有传输特性（Hd + Hx）/（Hd-Hx））的由反相分量提取部分2提取的反相分量信号S; 加法器4将由信号处理部分3提供传递特性的反相分量信号S的相位反相信号和由同相分量提取部分1提取的同相分量信号M相加; 并且加法器5将由信号处理部分3提供传递特性的反相分量信号S和由同相分量提取部分1提取的同相分量信号M相加。

9. 发明授权

US07492906B2 Speaker-characteristic method and speaker reproduction system 有权
标题翻译：扬声器特征方法和扬声器再现系统
公开(公告)号：US07492906B2
公开(公告)日：2009-02-17
申请号：US10582862
申请日：2004-12-07
申请人： Bunkei Matsuoka , Masaru Kimura
发明人： Bunkei Matsuoka , Masaru Kimura
IPC分类号： H04R5/00
CPC分类号： H04S1/002
摘要： To date, there has been no speaker-characteristic compensation method including a processing step of reducing crosstalk between speakers incorporated in a mobile terminal. Accordingly, it has been impossible to reduce crosstalk that, in a mobile terminal, occurs between speakers. A speaker-characteristic compensation method, for a mobile terminal device having at least two speakers in a case, according to the present invention includes steps of reducing mutual crosstalk between the speakers, thereby reducing crosstalk between the speakers.
摘要翻译：迄今为止，没有说话者特征补偿方法，包括减少结合在移动终端中的扬声器之间的串扰的处理步骤。因此，不可能减少在扬声器之间发生在移动终端中的串扰。根据本发明的用于具有至少两个扬声器的移动终端装置的扬声器特性补偿方法包括减少扬声器之间的相互串扰的步骤，从而减少扬声器之间的串扰。

10. 发明申请

US20070098180A1 Speaker-characteristic compensation method for mobile terminal device 有权
标题翻译：移动终端设备的扬声器特征补偿方法
公开(公告)号：US20070098180A1
公开(公告)日：2007-05-03
申请号：US10582862
申请日：2004-12-07
申请人： Bunkei Matsuoka , Masaru Kimura
发明人： Bunkei Matsuoka , Masaru Kimura
IPC分类号： H04R5/00 , H04R29/00
CPC分类号： H04S1/002
摘要： To date, there has been no speaker-characteristic compensation method including a processing step of reducing crosstalk between speakers incorporated in a mobile terminal. Accordingly, it has been impossible to reduce crosstalk that, in a mobile terminal, occurs between speakers. A speaker-characteristic compensation method, for a mobile terminal device having at least two speakers in a case, according to the present invention includes steps of reducing mutual crosstalk between the speakers, thereby reducing crosstalk between the speakers.
摘要翻译：迄今为止，没有说话者特征补偿方法，包括减少结合在移动终端中的扬声器之间的串扰的处理步骤。因此，不可能减少在扬声器之间发生在移动终端中的串扰。根据本发明的用于具有至少两个扬声器的移动终端装置的扬声器特性补偿方法包括减少扬声器之间的相互串扰的步骤，从而减少扬声器之间的串扰。

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