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1. 发明授权

US08290177B2 Sound zoom method, medium, and apparatus 有权
标题翻译：声音变焦方式，媒体和装置
公开(公告)号：US08290177B2
公开(公告)日：2012-10-16
申请号：US12010087
申请日：2008-01-18
申请人： So-young Jeong , Kwang-cheol Oh , Jae-hoon Jeong , Kyu-hong Kim
发明人： So-young Jeong , Kwang-cheol Oh , Jae-hoon Jeong , Kyu-hong Kim
IPC分类号： H04R3/00 , H04R25/00 , H03G3/00
CPC分类号： H04R1/406 , H04R3/005 , H04R2430/20 , H04R2430/21
摘要： A sound zoom method, medium, and apparatus generating a signal in which a target sound is removed from sound signals input to a microphone-array by adjusting a null width that restricts a directivity sensitivity of the microphone array, and extracting a signal corresponding to the target sound from the sound signals by using the generated signal. Thus, a sound located at a predetermined position away from the microphone array can be selectively obtained so that a target sound is efficiently obtained.
摘要翻译：一种声音变焦方法，介质和装置，其通过调节限制麦克风阵列的方向性灵敏度的零点宽度，并且提取与该目标对应的信号，从而产生从输入到麦克风阵列的声音信号中去除目标声音的信号通过使用产生的信号从声音信号发出声音。因此，可以选择性地获得位于远离麦克风阵列的预定位置的声音，从而有效地获得目标声音。

2. 发明申请

US20090086998A1 Method and apparatus for identifying sound sources from mixed sound signal 审中-公开
标题翻译：用于从混合声音信号识别声源的方法和装置
公开(公告)号：US20090086998A1
公开(公告)日：2009-04-02
申请号：US12073458
申请日：2008-03-05
申请人： So-young Jeong , Kwang-cheol Oh , Jae-hoon Jeong , Kyu-hong Kim
发明人： So-young Jeong , Kwang-cheol Oh , Jae-hoon Jeong , Kyu-hong Kim
IPC分类号： H04B1/00
CPC分类号： H04R3/005 , H04R2201/403
摘要： A method and apparatus for discriminating sound sources from a mixed sound is provided. The method includes separating sound source signals from a mixed sound signal including a plurality of sound source signals that are input through a microphone array, estimating a transfer function of a mixing channel mixing the plurality of sound source signals from relationships between the mixed sound signal and the separated sound source signals, obtaining input signals of the microphone array by multiplying the estimated transfer function by the separated sound source signals, and calculating location information of each sound source using a predetermined sound source location estimation method based on the obtained input signals.
摘要翻译：提供了用于从混合声音识别声源的方法和装置。该方法包括从包括通过麦克风阵列输入的多个声源信号的混合声音信号中分离声源信号，从混合声音信号和混合声音信号之间的关系估计混合信道的传递函数，分离的声源信号，通过将估计的传递函数乘以分离的声源信号来获得麦克风阵列的输入信号，并且使用基于所获得的输入信号的预定声源位置估计方法来计算每个声源的位置信息。

3. 发明授权

US08238569B2 Method, medium, and apparatus for extracting target sound from mixed sound 有权
标题翻译：用于从混合声音提取目标声音的方法，介质和装置
公开(公告)号：US08238569B2
公开(公告)日：2012-08-07
申请号：US12458698
申请日：2009-07-21
申请人： So-young Jeong , Kwang-cheol Oh , Jae-hoon Jeong , Kyu-hong Kim
发明人： So-young Jeong , Kwang-cheol Oh , Jae-hoon Jeong , Kyu-hong Kim
IPC分类号： H04R3/00
CPC分类号： H04R3/005
摘要： A method, medium, and apparatus for extracting a target sound from a mixed sound. The method includes obtaining the mixed signal from a microphone array, generating a first signal which is emphasized and directed toward a target sound source, and a second signal which is suppressed and directed toward the target sound source, calculating a non-linear filter which is adaptive to at least one of an amplitude ratio of the first signal to the second signal in a time-frequency domain, frequencies of the first and second signals, and a ratio of an interference signal to the mixed signal, and filtering the first signal by the non-linear filter.
摘要翻译：一种用于从混合声音提取目标声音的方法，介质和装置。该方法包括从麦克风阵列获得混合信号，产生被强调并指向目标声源的第一信号，以及被抑制并指向目标声源的第二信号，计算非线性滤波器，该非线性滤波器是适应于时频域中的第一信号与第二信号的振幅比中的至少一个，第一和第二信号的频率以及干扰信号与混合信号的比率中的至少一个，并且通过非线性滤波器。

4. 发明授权

US08085949B2 Method and apparatus for canceling noise from sound input through microphone 有权
标题翻译：通过麦克风输入声音消除噪音的方法和装置
公开(公告)号：US08085949B2
公开(公告)日：2011-12-27
申请号：US12076281
申请日：2008-03-14
申请人： Kyu-hong Kim , Kwang-cheol Oh , Jae-hoon Jeong , So-young Jeong
发明人： Kyu-hong Kim , Kwang-cheol Oh , Jae-hoon Jeong , So-young Jeong
IPC分类号： H04B15/00
CPC分类号： H04R3/005 , G10L21/0208 , G10L2021/02166 , H04R2430/03 , H04R2430/20 , H04R2430/25
摘要： Provided is a method and apparatus for canceling noise from a sound signal input through a microphone. The method includes filtering a high-frequency signal having a frequency that is higher than a reference frequency and a low-frequency signal having a frequency that is lower than the reference frequency from input signals obtained through a microphone array, obtaining a high-frequency target signal by canceling a noise signal from the filtered high-frequency signal using a beamforming method, obtaining a low-frequency target signal by canceling a noise signal having a phase difference that is different from a phase difference of a target signal from the filtered low-frequency signal, and obtaining a sound source signal from which noise is cancelled, by synthesizing the obtained high-frequency target signal with the obtained low-frequency target signal. Thus, it is possible to accurately obtain a target sound source signal by minimizing signal distortion occurring in a low-frequency band in a digital sound obtaining apparatus having a small-size microphone array and accurately canceling or attenuating unnecessary noise.
摘要翻译：提供一种用于从通过麦克风输入的声音信号中消除噪声的方法和装置。该方法包括：从通过麦克风阵列获得的输入信号中对具有高于参考频率的频率的高频信号和具有低于参考频率的频率的低频信号进行滤波，从而获得高频目标通过使用波束成形方法从滤波的高频信号中消除噪声信号，通过消除具有与来自滤波的低通滤波器的目标信号的相位差不同的相位差的噪声信号来获得低频目标信号，通过利用所获得的低频目标信号合成所获得的高频目标信号，获得消除噪声的声源信号。因此，通过使具有小尺寸麦克风阵列的数字声音获取装置中的低频带中发生的信号失真最小化并且精确地消除或衰减不必要的噪声，可以准确地获得目标声源信号。

5. 发明申请

US20090141907A1 Method and apparatus for canceling noise from sound input through microphone 有权
标题翻译：通过麦克风输入声音消除噪音的方法和装置
公开(公告)号：US20090141907A1
公开(公告)日：2009-06-04
申请号：US12076281
申请日：2008-03-14
申请人： Kyu-hong Kim , Kwang-cheol Oh , Jae-hoon Jeong , So-Young Jeong
发明人： Kyu-hong Kim , Kwang-cheol Oh , Jae-hoon Jeong , So-Young Jeong
IPC分类号： G10K11/16
CPC分类号： H04R3/005 , G10L21/0208 , G10L2021/02166 , H04R2430/03 , H04R2430/20 , H04R2430/25
摘要： Provided is a method and apparatus for canceling noise from a sound signal input through a microphone. The method includes filtering a high-frequency signal having a frequency that is higher than a reference frequency and a low-frequency signal having a frequency that is lower than the reference frequency from input signals obtained through a microphone array, obtaining a high-frequency target signal by canceling a noise signal from the filtered high-frequency signal using a beamforming method, obtaining a low-frequency target signal by canceling a noise signal having a phase difference that is different from a phase difference of a target signal from the filtered low-frequency signal, and obtaining a sound source signal from which noise is cancelled, by synthesizing the obtained high-frequency target signal with the obtained low-frequency target signal. Thus, it is possible to accurately obtain a target sound source signal by minimizing signal distortion occurring in a low-frequency band in a digital sound obtaining apparatus having a small-size microphone array and accurately canceling or attenuating unnecessary noise.
摘要翻译：提供一种用于从通过麦克风输入的声音信号中消除噪声的方法和装置。该方法包括：从通过麦克风阵列获得的输入信号中对具有高于参考频率的频率的高频信号和具有低于参考频率的频率的低频信号进行滤波，从而获得高频目标通过使用波束成形方法从滤波后的高频信号中消除噪声信号，通过消除具有与来自滤波的低通滤波器的目标信号的相位差不同的相位差的噪声信号来获得低频目标信号，通过利用所获得的低频目标信号合成所获得的高频目标信号，获得消除噪声的声源信号。因此，通过使具有小尺寸麦克风阵列的数字声音获取装置中的低频带中发生的信号失真最小化并且精确地消除或衰减不必要的噪声，可以准确地获得目标声源信号。

6. 发明申请

US20090129609A1 Method and apparatus for acquiring multi-channel sound by using microphone array 有权
标题翻译：使用麦克风阵列获取多声道声音的方法和装置
公开(公告)号：US20090129609A1
公开(公告)日：2009-05-21
申请号：US12076119
申请日：2008-03-13
申请人： Kwang-cheol Oh , Jae-hoon Jeong , Kyu-Hong Kim , So-young Jeong
发明人： Kwang-cheol Oh , Jae-hoon Jeong , Kyu-Hong Kim , So-young Jeong
IPC分类号： H04R3/00
CPC分类号： H04R1/406 , H04R3/005 , H04R2430/20 , H04S3/008 , H04S2400/15
摘要： Provided are a method and an apparatus for acquiring a multi-channel sound by using a microphone array. The method estimates positions of sound sources corresponding to sound source signals, which are mixed together, from the sound source signals input via a microphone array; and generates a multi-channel sound source signal by compensating for the sound source signals, based on differences between the estimated positions of the sound sources and a position of a virtual microphone array substituting for the microphone array. By doing so, the multi-channel sound having a stereoscopic effect can be acquired from a plurality of distant sound source signals which are input via the microphone array from a portable sound acquisition device.
摘要翻译：提供了一种通过使用麦克风阵列获取多声道声音的方法和装置。该方法从通过麦克风阵列输入的声源信号估计对应于混合在一起的声源信号的声源的位置; 并且基于声源的估计位置与代替麦克风阵列的虚拟麦克风阵列的位置之间的差异来补偿声源信号来产生多声道声源信号。通过这样做，可以从便携式声音获取装置经由麦克风阵列输入的多个远程声源信号中获得具有立体效果的多声道声音。

7. 发明授权

US08385562B2 Sound source signal filtering method based on calculated distances between microphone and sound source 有权
标题翻译：基于麦克风和声源之间计算距离的声源信号滤波方法
公开(公告)号：US08385562B2
公开(公告)日：2013-02-26
申请号：US12149521
申请日：2008-05-02
申请人： Jae-hoon Jeong , Kwang-cheol Oh , Kyu-hong Kim , So-young Jeong
发明人： Jae-hoon Jeong , Kwang-cheol Oh , Kyu-hong Kim , So-young Jeong
IPC分类号： H04R3/00
CPC分类号： G01S5/20 , H04R3/005
摘要： Provided is a sound source signal filtering method and apparatus. The sound source signal filtering method includes: generating two or more microphone output signals by combining sound source signals input through a plurality of microphones; calculating distances between the microphones and a sound source from which the sound source signals are emitted by using distance relationships according to frequencies of the sound source signals extracted from the generated microphone output signals; and filtering the sound source signals to obtain one or more sound source signals corresponding to a predetermined distance by using the calculated distances. Accordingly, it is possible to obtain only sound source signals emitted from a sound source at a particular distance from the microphone array among a plurality of sound source signals input through the microphone array.
摘要翻译：提供了一种声源信号滤波方法和装置。声源信号滤波方法包括：通过组合通过多个麦克风输入的声源信号来产生两个或更多麦克风输出信号; 根据从产生的麦克风输出信号中提取的声源信号的频率，通过使用距离关系计算麦克风和声源之间的距离; 并且通过使用所计算的距离来对声源信号进行滤波以获得对应于预定距离的一个或多个声源信号。因此，可以从通过麦克风阵列输入的多个声源信号中仅获得与麦克风阵列特定距离处的声源发出的声源信号。

8. 发明授权

US07710826B2 Method and apparatus for measuring sound source distance using microphone array 有权
标题翻译：使用麦克风阵列测量声源距离的方法和装置
公开(公告)号：US07710826B2
公开(公告)日：2010-05-04
申请号：US12081782
申请日：2008-04-21
申请人： Jae-hoon Jeong , Kwang-cheol Oh , Kyu-hong Kim , So-young Jeong
发明人： Jae-hoon Jeong , Kwang-cheol Oh , Kyu-hong Kim , So-young Jeong
IPC分类号： G01S3/80
CPC分类号： G01S11/14
摘要： A method and apparatus for measuring a distance to a sound source. The method includes combining sound source signals input through at least two microphones and generating at least two microphone output signals, and performing an operation on the generated microphone output signals and calculating a distance to a sound source by using the relationship between a result of the operation and a frequency of the input sound source signals. Accordingly, regardless of the strength of a sound source, the distance to a sound source can be measured.
摘要翻译：一种用于测量到声源的距离的方法和装置。该方法包括组合通过至少两个麦克风输入的声源信号并产生至少两个麦克风输出信号，以及对所生成的麦克风输出信号执行操作，并通过使用操作结果之间的关系计算到声源的距离以及输入声源信号的频率。因此，不管声源的强度如何，可以测量到声源的距离。

9. 发明申请

US20090279715A1 Method, medium, and apparatus for extracting target sound from mixed sound 有权
标题翻译：用于从混合声音提取目标声音的方法，介质和装置
公开(公告)号：US20090279715A1
公开(公告)日：2009-11-12
申请号：US12458698
申请日：2009-07-21
申请人： So-young Jeong , Kwang-cheol Oh , Jae-hoon Jeong , Kyu-hong Kim
发明人： So-young Jeong , Kwang-cheol Oh , Jae-hoon Jeong , Kyu-hong Kim
IPC分类号： H04R3/00
CPC分类号： H04R3/005
摘要： A method, medium, and apparatus for extracting a target sound from a mixed sound. The method includes obtaining the mixed signal from a microphone array, generating a first signal which is emphasized and directed toward a target sound source, and a second signal which is suppressed and directed toward the target sound source, calculating a non-linear filter which is adaptive to at least one of an amplitude ratio of the first signal to the second signal in a time-frequency domain, frequencies of the first and second signals, and a ratio of an interference signal to the mixed signal, and filtering the first signal by the non-linear filter.
摘要翻译：一种用于从混合声音提取目标声音的方法，介质和装置。该方法包括从麦克风阵列获得混合信号，产生被强调并指向目标声源的第一信号，以及被抑制并指向目标声源的第二信号，计算非线性滤波器，该非线性滤波器是适应于时频域中的第一信号与第二信号的振幅比中的至少一个，第一和第二信号的频率以及干扰信号与混合信号的比率中的至少一个，并且通过以下方式对第一信号进行滤波非线性滤波器。

10. 发明申请

US20090141908A1 Distance based sound source signal filtering method and apparatus 有权
标题翻译：基于距离的声源信号滤波方法和装置
公开(公告)号：US20090141908A1
公开(公告)日：2009-06-04
申请号：US12149521
申请日：2008-05-02
申请人： Jae-hoon Jeong , Kwang-cheol Oh , Kyu-hong Kim , So-young Jeong
发明人： Jae-hoon Jeong , Kwang-cheol Oh , Kyu-hong Kim , So-young Jeong
IPC分类号： H04R3/00
CPC分类号： G01S5/20 , H04R3/005
摘要： Provided is a sound source signal filtering method and apparatus. The sound source signal filtering method includes: generating two or more microphone output signals by combining sound source signals input through a plurality of microphones; calculating distances between the microphones and a sound source from which the sound source signals are emitted by using distance relationships according to frequencies of the sound source signals extracted from the generated microphone output signals; and filtering the sound source signals to obtain one or more sound source signals corresponding to a predetermined distance by using the calculated distances. Accordingly, it is possible to obtain only sound source signals emitted from a sound source at a particular distance from the microphone array among a plurality of sound source signals input through the microphone array.
摘要翻译：提供了一种声源信号滤波方法和装置。声源信号滤波方法包括：通过组合通过多个麦克风输入的声源信号来产生两个或更多麦克风输出信号; 根据从产生的麦克风输出信号中提取的声源信号的频率，通过使用距离关系计算麦克风和声源之间的距离; 并且通过使用所计算的距离来对声源信号进行滤波以获得对应于预定距离的一个或多个声源信号。因此，可以从通过麦克风阵列输入的多个声源信号中仅获得与麦克风阵列特定距离处的声源发出的声源信号。

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