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11. 发明授权

US07760888B2 Howling suppression device, program, integrated circuit, and howling suppression method 有权
标题翻译：啸声抑制装置，程序，集成电路和啸叫抑制方法
公开(公告)号：US07760888B2
公开(公告)日：2010-07-20
申请号：US10585479
申请日：2005-06-07
申请人： Takeo Kanamori , Takashi Kawamura , Tomomi Matsuoka
发明人： Takeo Kanamori , Takashi Kawamura , Tomomi Matsuoka
IPC分类号： H04R27/00 , H04B15/00
CPC分类号： H04R3/02 , H04R27/00
摘要： Howling, which occurs when amplifying a target sound collected by a first microphone through an amplification section and outputting the amplified sound as an intensified sound from a loudspeaker, is suppressed using a first and second acoustic signal. A first power spectrum is produced according to the first acoustic signal output from the first microphone collecting a sound. A second power spectrum is produced according to the second acoustic signal of a sound including at least the intensified sound and not including the target sound. Then, the first acoustic signal is filtered based on the first power spectrum, and the second power spectrum to output only an acoustic signal of the target sound to the amplification section.
摘要翻译：当通过放大部分放大由第一麦克风收集的目标声音并且将放大的声音作为来自扬声器的增强声音输出时发生的嚎叫被使用第一和第二声音信号抑制。根据从第一麦克风输出的收集声音的第一声信号产生第一功率谱。根据包括至少强化声音并且不包括目标声音的声音的第二声信号产生第二功率谱。然后，第一声信号基于第一功率谱进行滤波，第二功率谱仅将目标声音的声信号输出到放大部。

12. 发明申请

US20080285774A1 Howling Suppression Device, Program, Integrated Circuit, and Howling Suppression Method 有权
标题翻译：啸声抑制装置，程序，集成电路和啸声抑制方法
公开(公告)号：US20080285774A1
公开(公告)日：2008-11-20
申请号：US10585479
申请日：2005-06-07
申请人： Takeo Kanamori , Takashi Kawamura , Tomomi Matsuoka
发明人： Takeo Kanamori , Takashi Kawamura , Tomomi Matsuoka
IPC分类号： H04B15/00 , H04R3/02 , H04R27/00
CPC分类号： H04R3/02 , H04R27/00
摘要： Howling, which occurs when amplifying a target sound collected by a first microphone through an amplification section and outputting the amplified sound as an intensified sound from a loudspeaker, is suppressed. A first power spectrum is produced according to a first acoustic signal output from the first microphone collecting a sound. A second power spectrum is produced according to a second acoustic signal of a sound including at least the intensified sound and not including the target sound. Then, the first acoustic signal is filtered based on the first power spectrum and the second power spectrum to output only an acoustic signal of the target sound to the amplification section.
摘要翻译：当通过放大部分放大由第一麦克风收集的目标声音并且将放大的声音作为来自扬声器的增强声音输出时发生的啸声被抑制。根据从第一麦克风输出的收集声音的第一声信号产生第一功率谱。根据包括至少强化声音并且不包括目标声音的声音的第二声信号产生第二功率谱。然后，基于第一功率谱和第二功率谱对第一声信号进行滤波，以仅将目标声音的声信号输出到放大部。

13. 发明申请

US20060053003A1 Acoustic interval detection method and device 有权
标题翻译：声间隔检测方法及装置
公开(公告)号：US20060053003A1
公开(公告)日：2006-03-09
申请号：US10542931
申请日：2004-06-03
申请人： Tetsu Suzuki , Takeo Kanamori , Takashi Kawamura
发明人： Tetsu Suzuki , Takeo Kanamori , Takashi Kawamura
IPC分类号： G10L19/00
CPC分类号： G10L25/78 , G10L2025/932 , G10L2025/937
摘要： There is provided a harmonic structure acoustic signal detection device not depending on the level fluctuation of the input signal, having an excellent real time property and noise resistance. The device includes: an FFT unit (200) which performs FFT on an input signal and calculates a power spectrum component for each frame; a harmonic structure extraction unit (201) which leaves only a harmonic structure from the power spectrum component; a voiced feature evaluation unit (210) which evaluates correlation between the frames of harmonic structures extracted by the harmonic structure extraction unit (201), thereby evaluates whether or not the segment is a vowel segment, and extracts the voiced segment; and a speech segment determination unit (205) which determines a speech segment according to the continuity and durability of the output of the voiced feature evaluation unit (210).
摘要翻译：提供了不依赖于输入信号的电平波动的谐波结构声信号检测装置，具有优异的实时性和抗噪声性。该装置包括：FFT单元（200），对输入信号执行FFT，并计算每帧的功率谱分量; 谐波结构提取单元，其仅留下来自功率谱分量的谐波结构; 声音特征评估单元，其评估由所述谐波结构提取单元（201）提取的谐波结构的帧之间的相关性，从而评估所述段是否是元音段，并且提取所述有声段; 以及语音段确定单元，其根据所述有声特征评估单元的输出的连续性和耐久性来确定语音段。

14. 发明申请

US20130156208A1 HEARING AID AND METHOD OF DETECTING VIBRATION 有权
标题翻译：听力助听器和检测振动的方法
公开(公告)号：US20130156208A1
公开(公告)日：2013-06-20
申请号：US13819349
申请日：2012-02-21
申请人： Yutaka Banba , Takeo Kanamori
发明人： Yutaka Banba , Takeo Kanamori
IPC分类号： H04R25/00
CPC分类号： H04R25/30 , G10L21/0208 , G10L2021/02165 , H04R25/407 , H04R2430/03
摘要： The present invention provides a hearing aid capable of detecting contact vibration noise from a collected sound signal. A hearing aid (100) is provided with two microphones (110-1, 110-2), a vibration component extracting unit (120) which extracts from collected sound signals respectively obtained by the two microphones (110-1, 110-2) an uncorrelated component between two collected sound signals as a vibration component for each frequency band, a vibration noise identifying unit (130) which determines whether or not a contact noise occurs based on the vibration component for each frequency band extracted by the vibration component extracting unit (120), an acoustic signal processing unit (140) which, when generating an acoustic signal by hearing aid processing of the two collected sound signals, processes the acoustic signal depending on the presence or absence of the occurrence of the contact vibration noise, and a receiver (150) which converts the acoustic signal to sound.
摘要翻译：本发明提供一种能够从收集的声音信号中检测接触振动噪声的助听器。助听器（100）具有两个麦克风（110-1,110-2），从由两个麦克风（110-1,110-2）分别获得的收集的声音信号中提取的振动分量提取单元（120）在两个收集的声音信号之间作为每个频带的振动分量的不相关分量，基于由振动分量提取单元提取的每个频带的振动分量来确定是否发生接触噪声的振动噪声识别单元（130）（120），声信号处理单元（140），当通过对所收集的两个声音信号进行助听处理产生声信号时，根据是否存在接触振动噪声来处理声信号，以及接收器（150），其将声信号转换成声音。

15. 发明授权

US08311236B2 Noise extraction device using microphone 有权
标题翻译：噪音提取装置使用麦克风
公开(公告)号：US08311236B2
公开(公告)日：2012-11-13
申请号：US12517406
申请日：2008-10-03
申请人： Takeo Kanamori
发明人： Takeo Kanamori
IPC分类号： H04R3/00
CPC分类号： H04R3/005
摘要： A noise extraction device of the present invention includes: first and second microphone units (11 and 12) each picking up a sound; a directivity synthesis unit which performs a directivity synthesis on output signals respectively received from the first and second microphone units (11 and 12) and generates two directionally synthesized signals which have: different sensitivities to noise; the same directional pattern with respect to sound pressure; and the same effective acoustic center position; and an acoustic cancellation unit which cancels an acoustic component of one of the two directionally synthesized signals by subtracting the one of the two directionally synthesized signals from the other of the two directionally synthesized signal, so as to extract a noise component.
摘要翻译：本发明的噪声提取装置包括：每个拾取声音的第一和第二麦克风单元（11和12）; 方向性合成单元，其对从第一和第二麦克风单元（11和12）分别接收的输出信号执行方向性合成，并产生具有不同的噪声灵敏度的两个定向合成信号; 相对于声压相同的方向图; 和同样有效的声中心位置; 以及声消除单元，通过从两个定向合成信号中的另一个中减去两个定向合成信号中的一个来消除两个定向合成信号中的一个的声分量，以便提取噪声分量。

16. 发明授权

US09560456B2 Hearing aid and method of detecting vibration 有权
标题翻译：助听器和振动检测方法
公开(公告)号：US09560456B2
公开(公告)日：2017-01-31
申请号：US13819349
申请日：2012-02-21
申请人： Yutaka Banba , Takeo Kanamori
发明人： Yutaka Banba , Takeo Kanamori
IPC分类号： H04R25/00 , G10L21/0208 , G10L21/0216
CPC分类号： H04R25/30 , G10L21/0208 , G10L2021/02165 , H04R25/407 , H04R2430/03
摘要： A hearing aid capable of detecting contact vibration noise from a collected sound signal. The hearing aid is provided with two microphones, a vibration component extracting section that extracts from collected sound signals respectively obtained by the two microphones an uncorrelated component between two collected sound signals as a vibration component for each frequency band. Additionally, a vibration noise identifying section determines whether or not a contact noise occurs based on the vibration component for each frequency band extracted by the vibration component extracting section, an acoustic signal processing section, when generating an acoustic signal by hearing aid processing of the two collected sound signals, processes the acoustic signal depending on the presence or absence of the occurrence of the contact vibration noise, and a receiver converts the acoustic signal to sound.
摘要翻译：一种能够从收集的声音信号中检测接触振动噪声的助听器。助听器设置有两个麦克风，振动分量提取部分，从由两个麦克风分别获得的收集的声音信号中提取两个收集的声音信号之间的不相关分量作为每个频带的振动分量。此外，振动噪声识别部分基于由振动分量提取部分提取的每个频带的振动分量来确定是否发生接触噪声，声学信号处理部分在通过辅助处理产生声学信号时确定收集的声音信号，根据存在或不存在接触振动噪声的情况处理声信号，并且接收器将声信号转换成声音。

17. 发明授权

US09277316B2 Sound processing device and sound processing method 有权
标题翻译：声音处理装置和声音处理方法
公开(公告)号：US09277316B2
公开(公告)日：2016-03-01
申请号：US13258171
申请日：2011-02-23
申请人： Yutaka Banba , Takeo Kanamori
发明人： Yutaka Banba , Takeo Kanamori
IPC分类号： H04R3/00 , H04R25/00
CPC分类号： H04R3/007 , H04R3/005 , H04R25/407 , H04R25/55 , H04R25/552 , H04R2225/41
摘要： A sound processing apparatus which can improve precision of analyzes on ambient sounds, carries out analysis on the ambient sounds based upon collected sound signals acquired by two sound collectors. The sound processing apparatus is provided with a level signal converter that converts the collected sound signal into a level signal, which indicates an absolute value of the collected sound signal from which phase information is removed. A level signal synthesizer generates a synthesized level signal in which the level signals acquired from the collected sound signals of the two sound collectors are synthesized, and a detector/identifier carries out analysis on the ambient sounds, based upon the synthesized level signal.
摘要翻译：可以提高对环境声音的分析精度的声音处理装置，基于由两个声音收集器采集的声音信号对环境声音进行分析。声音处理装置设置有电平信号转换器，该电平信号转换器将收集的声音信号转换为电平信号，该电平信号指示从其移除相位信息的所收集的声音信号的绝对值。电平信号合成器产生合成电平信号，其中从两个收集器的收集的声音信号获取的电平信号被合成，并且检测器/标识符基于合成电平信号执行环境声音的分析。

18. 发明授权

US08879749B2 Directional microphone device and directivity control method 有权
标题翻译：定向麦克风设备和方向性控制方法
公开(公告)号：US08879749B2
公开(公告)日：2014-11-04
申请号：US13390373
申请日：2011-06-16
申请人： Yasuhiro Terada , Takeo Kanamori
发明人： Yasuhiro Terada , Takeo Kanamori
IPC分类号： H04R3/00 , H04R29/00 , H04R1/40 , H04R25/00
CPC分类号： H04R29/006 , H04R1/406 , H04R3/005 , H04R25/407 , H04R2430/03
摘要： A directional microphone apparatus and directivity control method that corrects a level difference and a phase difference generated in a low band in a plurality of non-directional microphone units, improve the directivity, and reduce the size are provided. Level difference calculation section (105) calculates the level difference between first signal x1(t) obtained by first non-directional microphone unit (101) and second signal x2(t) obtained by second non-directional microphone unit (102), and correction parameter calculation section (106) calculates coefficients of a linear IIR filter configuring correction process section (103) based on the level difference. Correction process section (103) simultaneously corrects the level difference and a phase difference in the low band between two non-directional microphone units by using the calculated coefficients.
摘要翻译：定向麦克风装置和方向性控制方法，其校正多个非定向麦克风单元中的低频中产生的电平差和相位差，提高方向性，并提供减小尺寸。电平差计算部（105）计算由第一非定向麦克风单元（101）获得的第一信号x1（t）和由第二非定向麦克风单元（102）获得的第二信号x2（t）之间的电平差，参数计算部（106）基于该电平差计算线性IIR滤波器构成校正处理部（103）的系数。校正处理部（103）通过使用计算出的系数同时校正两个非定向麦克风单元之间的低频带的电平差和相位差。

19. 发明申请

US20120008797A1 SOUND PROCESSING DEVICE AND SOUND PROCESSING METHOD 有权
标题翻译：声处理装置和声处理方法
公开(公告)号：US20120008797A1
公开(公告)日：2012-01-12
申请号：US13258171
申请日：2011-02-23
申请人： Yutaka Banba , Takeo Kanamori
发明人： Yutaka Banba , Takeo Kanamori
IPC分类号： H04R1/40
CPC分类号： H04R3/007 , H04R3/005 , H04R25/407 , H04R25/55 , H04R25/552 , H04R2225/41
摘要： A sound processing apparatus (100), which can improve precision of analyses on ambient sounds, carries out analysis on the ambient sounds based upon collected sound signals acquired by two sound collectors (first sound collector 110-1 and second sound collector 110-2), and the sound processing apparatus (100) is provided with a level signal conversion section (first level signal conversion section 130-1, second level signal conversion section 130-2) that converts the collected sound signal into a level signal, from which phase information is removed, a level signal synthesizing section (140) that generates a synthesized level signal in which the level signals acquired from the collected sound signals of the two sound collectors (first sound collector 110-1 and second sound collector 110-2) are synthesized, and a detecting and identifying section (160) that carries out analysis on the ambient sounds based upon the synthesized level signal.
摘要翻译：能够提高环境声音分析精度的声音处理装置（100）基于由两个收集器（第一声音收集器110-1和第二声音收集器110-2）获取的收集的声音信号，对环境声音进行分析，，并且声音处理装置（100）设置有将所收集的声音信号转换为电平信号的电平信号转换部（第一电平信号转换部130-1，第二电平信号转换部130-2），从该电平信号信号被消除，电平信号合成部（140），其生成合成电平信号，其中从两个收集器（第一收集器110-1和第二声音收集器110-2）的收集的声音信号获取的电平信号是以及基于合成电平信号对环境声音进行分析的检测和识别部分（160）。

20. 发明申请

US20110170705A1 DIRECTIONAL MICROPHONE DEVICE 有权
标题翻译：方向麦克风设备
公开(公告)号：US20110170705A1
公开(公告)日：2011-07-14
申请号：US12674245
申请日：2008-08-21
申请人： Takeo Kanamori
发明人： Takeo Kanamori
IPC分类号： H04R3/00
CPC分类号： H04R3/005
摘要： The directional microphone device according to the present invention solves a problem of increase in thermal noise (problem of decrease in sensitivity) that occurs at the time of directivity synthesis. The directional microphone device includes: a plurality of microphones which have directional and non-directional characteristics; a control unit which generates an output signal using signals outputted from each of the plurality of microphones; and an output unit which outputs the output signal generated by the control to unit. The control unit generates the output signal such that a nearly non-directional directivity and a high sensitivity are obtained in small amplitude range of the output signal, and a directivity and a low sensitivity are obtained in large amplitude range of the output signal.
摘要翻译：根据本发明的定向麦克风装置解决了在方向性合成时发生的热噪声增加（灵敏度降低的问题）的问题。定向麦克风装置包括：具有定向和非方向特性的多个麦克风; 控制单元，其使用从所述多个麦克风中的每一个输出的信号来生成输出信号; 以及输出单元，其将由所述控制生成的输出信号输出到单元。控制单元产生输出信号，使得在输出信号的小幅度范围内获得几乎非方向的方向性和高灵敏度，并且在输出信号的大幅度范围内获得方向性和低灵敏度。

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