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1. 发明申请

US20140156284A1 AUDIO-ENCODING METHOD AND APPARATUS, AUDIO-DECODING METHOD AND APPARATUS, RECODING MEDIUM THEREOF, AND MULTIMEDIA DEVICE EMPLOYING SAME 有权
标题翻译：音频编码方法和装置，音频解码方法和装置，其中介及其使用的多媒体装置
公开(公告)号：US20140156284A1
公开(公告)日：2014-06-05
申请号：US14123359
申请日：2012-06-01
申请人： Anton Porov , Konstantin Osipov , Ki-hyun Choo
发明人： Anton Porov , Konstantin Osipov , Ki-hyun Choo
IPC分类号： G10L19/008
CPC分类号： G10L19/0017 , G10L19/002 , G10L19/008 , G10L19/0204 , G10L19/032 , G10L19/167
摘要： Provided is an audio encoding method. The audio encoding method includes: acquiring envelopes based on a predetermined sub-band for an audio spectrum; quantizing the envelopes based on the predetermined sub-band; and obtaining a difference value between quantized envelopes for adjacent sub-bands and lossless encoding a difference value of a current sub-band by using a difference value of a previous sub-band as a context. Accordingly, the number of bits required to encode envelope information of an audio spectrum may be reduced in a limited bit range, thereby increasing the number of bits required to encode an actual spectral component.
摘要翻译：提供了一种音频编码方法。音频编码方法包括：基于用于音频频谱的预定子带获取信封; 基于预定的子带量化信封; 并且通过使用前一子带的差值作为上下文，获得相邻子带的量化包络之间的差值，并对当前子带的差值进行无损编码。因此，编码音频频谱的包络信息所需的比特数可以在有限的比特范围内减少，由此增加编码实际频谱分量所需的比特数。

2. 发明授权

US09361895B2 Audio-encoding method and apparatus, audio-decoding method and apparatus, recoding medium thereof, and multimedia device employing same 有权
标题翻译：音频编码方法和装置，音频解码方法和装置，其编码介质以及使用它的多媒体装置
公开(公告)号：US09361895B2
公开(公告)日：2016-06-07
申请号：US14123359
申请日：2012-06-01
申请人： Anton Porov , Konstantin Osipov , Ki-hyun Choo
发明人： Anton Porov , Konstantin Osipov , Ki-hyun Choo
IPC分类号： G10L19/008 , G10L19/032 , G10L19/00 , G10L19/02
CPC分类号： G10L19/0017 , G10L19/002 , G10L19/008 , G10L19/0204 , G10L19/032 , G10L19/167
摘要： Provided is an audio encoding method. The audio encoding method includes: acquiring envelopes based on a predetermined sub-band for an audio spectrum; quantizing the envelopes based on the predetermined sub-band; and obtaining a difference value between quantized envelopes for adjacent sub-bands and lossless encoding a difference value of a current sub-band by using a difference value of a previous sub-band as a context. Accordingly, the number of bits required to encode envelope information of an audio spectrum may be reduced in a limited bit range, thereby increasing the number of bits required to encode an actual spectral component.
摘要翻译：提供了一种音频编码方法。音频编码方法包括：基于用于音频频谱的预定子带获取信封; 基于预定的子带量化信封; 并且通过使用前一子带的差值作为上下文，获得相邻子带的量化包络之间的差值，并对当前子带的差值进行无损编码。因此，编码音频频谱的包络信息所需的比特数可以在有限的比特范围内减少，由此增加编码实际频谱分量所需的比特数。

3. 发明授权

US08861738B2 Method, medium, and system encoding/decoding multi-channel signal 有权
标题翻译：方法，中，系统编码/解码多通道信号
公开(公告)号：US08861738B2
公开(公告)日：2014-10-14
申请号：US13563808
申请日：2012-08-01
申请人： Jung-hoe Kim , Eun-mi Oh , Konstantin Osipov , Ki-hyun Choo
发明人： Jung-hoe Kim , Eun-mi Oh , Konstantin Osipov , Ki-hyun Choo
IPC分类号： H04H20/47 , H04H40/36 , H04H20/88 , G10L19/008
CPC分类号： H04H40/36 , G10L19/008 , H04H20/47 , H04H20/88
摘要： A multi-channel signal decoding method is provided. A down-mixed signal representative of a multi-channel signal is decoded, and parameters representing characteristic relations between channels of the multi-channel signal are decoded. An additional parameter is estimated by using the decoded parameters, and the decoded down-mixed signal is up-mixed by using the decoded parameters and the estimated parameter so as to decode the multi-channel signal.
摘要翻译：提供了一种多通道信号解码方法。解码表示多声道信号的下混信号，并对表示多声道信号的声道之间的特征关系的参数进行解码。通过使用解码参数来估计附加参数，并且通过使用解码参数和估计参数对解码的下混合信号进行混合，以解码多声道信号。

4. 发明授权

US08560304B2 Method and apparatus for encoding and decoding high frequency band 有权
标题翻译：高频带编码和解码方法和装置
公开(公告)号：US08560304B2
公开(公告)日：2013-10-15
申请号：US11877015
申请日：2007-10-23
申请人： Ki-hyun Choo , Anton Porov , Eun-mi Oh , Jung-hoo Kim
发明人： Ki-hyun Choo , Anton Porov , Eun-mi Oh , Jung-hoo Kim
IPC分类号： G10L19/14
CPC分类号： G10L19/0204 , G10L21/038
摘要： Provided is a method and apparatus for encoding or decoding a signal corresponding to a high frequency band in an audio signal. The method and apparatus for encoding a high frequency band detects and encodes frequency component(s) according to a pre-set criterion from a signal corresponding to a frequency band higher than a pre-set frequency and encodes energy value(s) of a signal to reconstruct band(s) in which the detected frequency component(s) are included. The method and apparatus for decoding a high frequency band decodes the signal by adjusting a signal to reconstruct a band in which important frequency component(s) are included by considering an energy value of the important frequency component(s). Accordingly, even though encoding or decoding is performed using a small number of bits, there is no degradation in sound quality of a signal corresponding to a high frequency band, and thus coding efficiency can be maximized.
摘要翻译：提供了一种用于对与音频信号中的高频带相对应的信号进行编码或解码的方法和装置。用于编码高频带的方法和装置根据来自对应于高于预定频率的频带的信号的预设标准来检测和编码频率分量，并对信号的能量值进行编码以重建其中包括检测到的频率分量的频带。用于解码高频带的方法和装置通过调整信号来重构信号，以通过考虑重要频率分量的能量值来重构其中包括重要频率分量的频带。因此，即使使用少量的比特来进行编码或解码，也不会使与高频带对应的信号的声音质量下降，能够最大化编码效率。

5. 发明授权

US08032362B2 Audio signal encoding/decoding method and apparatus 失效
标题翻译：音频信号编码/解码方法和装置
公开(公告)号：US08032362B2
公开(公告)日：2011-10-04
申请号：US11867218
申请日：2007-10-04
申请人： Ki-hyun Choo , Eun-mi Oh , Jung-hoe Kim , Konstantin Osipov , Sergey Petrov
发明人： Ki-hyun Choo , Eun-mi Oh , Jung-hoe Kim , Konstantin Osipov , Sergey Petrov
IPC分类号： G10L19/00
CPC分类号： G10L21/038 , G10L19/008 , G10L19/0212 , G10L19/24
摘要： Provided is an audio signal encoding method including transforming an input signal from a time domain to a time/frequency domain using a first transformation method, extracting a stereo parameter from a signal of the time/frequency domain, encoding the stereo parameter, and down-mixing the signal of the time/frequency domain, transforming each of sub-bands of the down-mixed signal to a frequency domain by using a second transformation method, and encoding the signal of the frequency domain in the frequency domain.
摘要翻译：提供了一种音频信号编码方法，包括使用第一变换方法将输入信号从时域变换为时域/频域，从时域/频域的信号中提取立体声参数，对立体声参数进行编码，混合时间/频域的信号，通过使用第二变换方法将下混合信号的每个子频带变换为频域，并对频域中的频域的信号进行编码。

6. 发明申请

US20120278089A1 ERROR CONCEALMENT METHOD AND APPARATUS FOR AUDIO SIGNAL AND DECODING METHOD AND APPARATUS FOR AUDIO SIGNAL USING THE SAME 有权
标题翻译：用于音频信号和解码方法的错误接收方法和装置以及使用该信号的音频信号的装置
公开(公告)号：US20120278089A1
公开(公告)日：2012-11-01
申请号：US13544203
申请日：2012-07-09
申请人： Eun-mi OH , Ki-hyun Choo , Ho-sang Sung , Chang-yong Son , Jung-heo Kim , Kang-eun Lee
发明人： Eun-mi OH , Ki-hyun Choo , Ho-sang Sung , Chang-yong Son , Jung-heo Kim , Kang-eun Lee
IPC分类号： G10L19/00
CPC分类号： G10L19/005 , G10L19/0212 , G10L19/022 , H03M13/00
摘要： An error concealment method and apparatus for an audio signal and a decoding method and apparatus for an audio signal using the error concealment method and apparatus. The error concealment method includes selecting one of an error concealment in a frequency domain and an error concealment in a time domain as an error concealment scheme for a current frame based on a predetermined criteria when an error occurs in the current frame, selecting one of a repetition scheme and an interpolation scheme in the frequency domain as the error concealment scheme for the current frame based on a predetermined criteria when the error concealment in the frequency domain is selected, and concealing the error of the current frame using the selected scheme.
摘要翻译：一种用于音频信号的错误隐藏方法和装置，以及使用错误隐藏方法和装置的用于音频信号的解码方法和装置。错误隐藏方法包括：当在当前帧中发生错误时，基于预定标准，选择频域中的错误隐藏和时域中的错误隐藏中的一个作为当前帧的错误隐藏方案，选择重复方案和在频域中的内插方案作为当前帧的错误隐藏方案，当选择频域中的错误隐藏时，基于预定标准，并且使用所选择的方案来隐藏当前帧的错误。

7. 发明授权

US08285555B2 Method, medium, and system scalably encoding/decoding audio/speech 有权
标题翻译：方法，媒体和系统可扩展地编码/解码音频/语音
公开(公告)号：US08285555B2
公开(公告)日：2012-10-09
申请号：US11984686
申请日：2007-11-20
申请人： Eun-mi Oh , Ho-sang Sung , Ki-hyun Choo , Kang-eun Lee
发明人： Eun-mi Oh , Ho-sang Sung , Ki-hyun Choo , Kang-eun Lee
IPC分类号： G10L19/00
CPC分类号： G10L19/24
摘要： A method, medium, and system scalably encoding/decoding audio/speech. The method includes splitting an input signal into a low frequency band signal that is lower than a predetermined frequency and a high frequency band signal that is higher than the predetermined frequency, scalably encoding the split low frequency band signal into a core layer and one or more extension layers and then decoding the encoded core layer and the encoded extension layers, generating an error signal by using the split low frequency band signal and a decoded signal of the encoded core layer and the encoded extension layers, and encoding the error signal and the high frequency band signal into a signal-to-noise ratio (SNR) enhancement layer and a bandwidth extension layer.
摘要翻译：一种方法，媒体和系统可扩展地编码/解码音频/语音。该方法包括将输入信号分成低于预定频率的低频带信号和高于预定频率的高频带信号，将分割的低频带信号可扩展地编码为核心层和一个或多个扩展层，然后对编码的核心层和编码的扩展层进行解码，通过使用分割的低频带信号和编码的核心层和经编码的扩展层的解码信号产生误差信号，并对误差信号和高频带信号转换成信噪比（SNR）增强层和带宽扩展层。

8. 发明授权

US08121832B2 Method and apparatus for encoding and decoding high frequency signal 有权
标题翻译：用于对高频信号进行编码和解码的方法和装置
公开(公告)号：US08121832B2
公开(公告)日：2012-02-21
申请号：US11984315
申请日：2007-11-15
申请人： Ki-hyun Choo , Lei Miao , Eun-mi Oh
发明人： Ki-hyun Choo , Lei Miao , Eun-mi Oh
IPC分类号： G10L19/10
CPC分类号： G10L19/06 , G10L19/02 , G10L19/0208 , G10L19/04 , G10L19/07 , G10L19/167 , G10L21/038 , G10L25/12 , G10L25/21 , G10L25/90
摘要： Provided are a method and apparatus for encoding and decoding a high frequency signal by using a low frequency signal. The high frequency signal can be encoded by extracting a coefficient by linear predicting a high frequency signal, and encoding the coefficient, generating a signal by using the extracted coefficient and a low frequency signal, and encoding the high frequency signal by calculating a ratio between the high frequency signal and an energy value of the generated signal. Also, the high frequency signal can be decoded by decoding a coefficient, which is extracted by linear predicting a high frequency signal, and a low frequency signal, and generating a signal by using the decoded coefficient and the decoded low frequency signal, and adjusting the generated signal by decoding a ratio between the generated signal and an energy value of the high frequency signal.
摘要翻译：提供了一种通过使用低频信号对高频信号进行编码和解码的方法和装置。高频信号可以通过线性预测高频信号提取系数进行编码，并对该系数进行编码，通过使用提取的系数和低频信号产生信号，并通过计算高频信号之间的比率来对高频信号进行编码高频信号和产生的信号的能量值。此外，可以通过对通过线性预测高频信号提取的系数和低频信号进行解码来解码高频信号，并且通过使用解码的系数和解码的低频信号来生成信号，并且调整通过解码所生成的信号与高频信号的能量值之间的比率来产生信号。

9. 发明授权

US08121831B2 Method, apparatus, and medium for bandwidth extension encoding and decoding 有权
公开(公告)号：US08121831B2
公开(公告)日：2012-02-21
申请号：US11976763
申请日：2007-10-26
申请人： Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
发明人： Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
IPC分类号： G10L19/04
CPC分类号： G10L21/038 , G10L19/0212 , G10L19/12 , G10L19/20
摘要： Provided are a method, apparatus, and medium for encoding/decoding a high frequency band signal by using a low frequency band signal corresponding to an audio signal or a speech signal. Accordingly, since the high frequency band signal is encoded and decoded by using the low frequency band signal, encoding and decoding can be carried out with a small data size while avoiding deterioration of sound quality.

10. 发明授权

US08111829B2 Method and apparatus for encoding and decoding stereo signal and multi-channel signal 有权
标题翻译：用于对立体声信号和多声道信号进行编码和解码的方法和装置
公开(公告)号：US08111829B2
公开(公告)日：2012-02-07
申请号：US11876947
申请日：2007-10-23
申请人： Ki-hyun Choo , Eun-mi Oh , Jung-hoe Kim , Boris Kudryashov , Sergey Petrov
发明人： Ki-hyun Choo , Eun-mi Oh , Jung-hoe Kim , Boris Kudryashov , Sergey Petrov
IPC分类号： H04H40/54
CPC分类号： G10L19/008 , H04H20/88 , H04H20/89 , H04S3/00 , H04S2420/03
摘要： Provided are a method and apparatus for encoding and decoding a stereo signal or a multi-channel signal. According to the method and apparatus, a stereo signal or a multi-channel signal can be encoded and/or decoded by generating parameters based on a mono signal.
摘要翻译：提供了一种用于对立体声信号或多声道信号进行编码和解码的方法和装置。根据该方法和装置，可以通过基于单声道信号产生参数来对立体声信号或多声道信号进行编码和/或解码。

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