公开(公告)号：US08229129B2

公开(公告)日：2012-07-24

申请号：US12078942

申请日：2008-04-08

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： H04R3/02

CPC分类号： H04R3/005

摘要： A method, medium, and apparatus for extracting a target sound from mixed sound. The method includes receiving a mixed signal through a microphone array, generating a first signal whose directivity is emphasized toward a target sound source and a second signal whose directivity toward the target sound source is suppressed based on the mixed signal, and extracting a target sound signal from the first signal by masking an interference sound signal, which is contained in the first signal, based on a ratio of the first signal to the second signal. Therefore, a target sound signal can be clearly separated from a mixed sound signal which contains a plurality of sound signals and is input to a microphone array.

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。 该方法包括通过麦克风阵列接收混合信号，产生朝向目标声源强调方向性的第一信号和基于混合信号抑制对目标声源的方向性的第二信号，并且提取目标声音信号 基于第一信号与第二信号的比率，通过屏蔽包含在第一信号中的干扰声音信号从第一信号中获取信号。 因此，可以将目标声音信号与包含多个声音信号的混合声音信号清楚地分离并输入到麦克风阵列。

公开(公告)号：US08160270B2

公开(公告)日：2012-04-17

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。

公开(公告)号：US20100254539A1

公开(公告)日：2010-10-07

申请号：US12754990

申请日：2010-04-06

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： H04R29/00 ,  H04B15/00

CPC分类号： G10L21/0272

摘要： A technology for eliminating or reducing interference sound from a sound signal to extract target sound is provided. Interference sound is modeled using training noise, and mixed source sound is separated using the modeled interference sound. The mixed source sound is separated into target sound and interference sound using a basis matrix of the modeled interference sound.

摘要翻译： 提供了用于消除或减少来自声音信号的干扰声音以提取目标声音的技术。 使用训练噪声对干扰声进行建模，并使用模拟干扰声分离混合声源。 混合源声音使用建模干扰声的基矩阵分离为目标声音和干扰声音。

公开(公告)号：US08554552B2

公开(公告)日：2013-10-08

申请号：US12609047

申请日：2009-10-30

申请人： Jae-hoon Jeong ,  Kwang-cheol Oh

发明人： Jae-hoon Jeong ,  Kwang-cheol Oh

IPC分类号： G10L21/02

CPC分类号： G10L21/0208 ,  G10L21/0232

摘要： An apparatus and a method for restoring voice are provided. The apparatus reduces noise included in a voice signal input to a microphone and outputs a voice signal having reduced noise, detects harmonic frequencies from the voice signal having reduced noise, and restores the voice signal having reduced noise approximate to its original state before being input to the microphone according to detected harmonic frequencies of the voice signal having reduced noise.

摘要翻译： 提供了一种用于恢复语音的装置和方法。 该装置降低了输入到麦克风的语音信号中包含的噪声，并且输出具有降低的噪声的语音信号，从具有降低的噪声的语音信号中检测谐波频率，并且在输入之前恢复具有接近其原始状态的具有降低的噪声的语音信号 麦克风根据检测到的具有降低噪声的语音信号的谐波频率。

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。

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。

公开(公告)号：US20100114570A1

公开(公告)日：2010-05-06

申请号：US12609047

申请日：2009-10-30

申请人： Jae-hoon Jeong ,  Kwang-cheol Oh

发明人： Jae-hoon Jeong ,  Kwang-cheol Oh

IPC分类号： G10L15/20

CPC分类号： G10L21/0208 ,  G10L21/0232

摘要： An apparatus and a method for restoring voice are provided. The apparatus reduces noise included in a voice signal input to a microphone and outputs a voice signal having reduced noise, detects harmonic frequencies from the voice signal having reduced noise, and restores the voice signal having reduced noise approximate to its original state before being input to the microphone according to detected harmonic frequencies of the voice signal having reduced noise.

摘要翻译： 提供了一种用于恢复语音的装置和方法。 该装置降低了输入到麦克风的语音信号中包含的噪声，并且输出具有降低的噪声的语音信号，从具有降低的噪声的语音信号中检测谐波频率，并且在输入之前恢复具有接近其初始状态的具有降低的噪声的语音信号 麦克风根据检测到的具有降低噪声的语音信号的谐波频率。

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。

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。

公开(公告)号：US5606229A

公开(公告)日：1997-02-25

申请号：US645072

申请日：1996-05-13

申请人： Kwang-yung Jung ,  Jae-hoon Jeong

发明人： Kwang-yung Jung ,  Jae-hoon Jeong

IPC分类号： H04N3/16 ,  H04N3/22 ,  H04N5/63 ,  H01J29/70 ,  H01J29/76

CPC分类号： H04N3/22 ,  H04N5/63

摘要： A horizontal deflection amplifying apparatus for use in an automatic main power supply such as that for a cathode ray tube is provided. The apparatus uses a microprocessor for the connection of capacitors to a horizontal deflection coil (yoke coil) by controlling the switching operation of relay switches. To prevent the drive transistor of the deflection coil driver from being destroyed or the horizontal deflection coil from being damaged due to excess current, the capacitors are connected or disconnected while the power supply voltage is off (i.e., at a 0V state) and the supply voltage is then re-applied. Thus, the horizontal deflection amplifying apparatus can be safely driven.

摘要翻译： 提供一种用于诸如阴极射线管等自动主电源的水平偏转放大装置。 该装置通过控制继电器开关的开关操作，使用微处理器将电容器连接到水平偏转线圈（轭线圈）。 为了防止偏转线圈驱动器的驱动晶体管被损坏或水平偏转线圈由于过电流而被损坏，电源在电源电压关闭（即在0V状态）时被连接或断开，并且电源 然后重新施加电压。 因此，可以安全地驱动水平偏转放大装置。