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21. 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。

22. 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.

23. 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。

24. 发明申请

US20090210234A1 APPARATUS AND METHOD OF ENCODING AND DECODING SIGNALS 有权
标题翻译：编码和解码信号的装置和方法
公开(公告)号：US20090210234A1
公开(公告)日：2009-08-20
申请号：US12246570
申请日：2008-10-07
申请人： Ho-sang SUNG , Eun-mi Oh , Jung-hoe Kim , Ki-hyun Choo , Mi-young Kim
发明人： Ho-sang SUNG , Eun-mi Oh , Jung-hoe Kim , Ki-hyun Choo , Mi-young Kim
IPC分类号： G10L19/00
CPC分类号： G10L19/002 , G10L19/00 , G10L19/18
摘要： A method of encoding an audio signal, where signals including two or more channel signals are downmixed to a mono signal, the mono signal is divided into a low-frequency signal and a high-frequency signal, the low-frequency signal is encoded through algebraic code excited linear prediction (ACELP) or transform coded excitation (TCX), and the high-frequency signal is encoded using the low-frequency signal. A method of decoding of an audio signal, a low-frequency signal encoded through ACELP or TCX is decoded, a high-frequency signal is decoded using the low-frequency signal, the low-frequency signal and the high-frequency signal are combined to generate a mono signal, and the mono signal is upmixed by decoding spatial parameters regarding signals including two or more channel signals.
摘要翻译：一种编码音频信号的方法，其中包括两个或更多个信道信号的信号被下混合到单声道信号，单声道信号被分为低频信号和高频信号，低频信号通过代数代码激励线性预测（ACELP）或变换编码激励（TCX），并且使用低频信号对高频信号进行编码。解码音频信号的方法，通过ACELP或TCX编码的低频信号进行解码，使用低频信号对低频信号进行解码，将低频信号和高频信号合成为产生单声道信号，并且单声道信号通过解码关于包括两个或更多个声道信号的信号的空间参数来混合。

25. 发明申请

US20090037180A1 TRANSCODING METHOD AND APPARATUS 审中-公开
标题翻译： TRANSCODING方法和装置
公开(公告)号：US20090037180A1
公开(公告)日：2009-02-05
申请号：US11947016
申请日：2007-11-29
申请人： Mi-young Kim , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
发明人： Mi-young Kim , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
IPC分类号： G10L19/00
CPC分类号： G10L19/0204 , G10L19/173
摘要： Provided is a method and apparatus for encoding a bitstream, which was encoded by a predetermined method, in another method. By adaptively encoding a bitstream encoded by a predetermined method by selecting a domain in which the encoding is performed for each predetermined band, the bitstream can be efficiently encoded and transmitted and received, and compatibility can be provided.
摘要翻译：提供了一种用于通过另一种方法对通过预定方法编码的比特流进行编码的方法和装置。通过对通过选择对每个预定频带执行编码的域来自适应地编码由预定方法编码的比特流，可以有效地编码和发送和接收比特流，并且可以提供兼容性。

26. 发明授权

US08625811B2 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：US08625811B2
公开(公告)日：2014-01-07
申请号：US13366455
申请日：2012-02-06
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： H04R5/00
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。

27. 发明授权

US08340962B2 Method and apparatus for adaptively encoding and decoding high frequency band 有权
标题翻译：用于自适应编码和解码高频带的方法和装置
公开(公告)号：US08340962B2
公开(公告)日：2012-12-25
申请号：US13220193
申请日：2011-08-29
申请人： Chang-yong Son , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
发明人： Chang-yong Son , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
IPC分类号： G10L19/12
CPC分类号： G10L21/038
摘要： Provided are a method and apparatus for encoding and decoding an audio signal. According to the present application, a signal of a high frequency band above a preset frequency band is adaptively encoded or decoded in the time domain or in the frequency domain by using a signal of a low frequency band below the preset frequency band. As such, the sound quality of a high frequency signal is not deteriorate even when an audio signal is encoded or decoded by using a small number of bits and thus coding efficiency may be maximized.
摘要翻译：提供了一种用于对音频信号进行编码和解码的方法和装置。根据本申请，通过使用低于预设频带的低频信号，在时域或频域中自适应地编码或解码高于预置频带的高频带的信号。因此，即使当通过使用少量位来对音频信号进行编码或解码时，高频信号的声音质量也不会恶化，从而可以使编码效率最大化。

28. 发明授权

US08010352B2 Method and apparatus for adaptively encoding and decoding high frequency band 有权
标题翻译：用于自适应编码和解码高频带的方法和装置
公开(公告)号：US08010352B2
公开(公告)日：2011-08-30
申请号：US11766331
申请日：2007-06-21
申请人： Chang-yong Son , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
发明人： Chang-yong Son , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim
IPC分类号： G10L19/12
CPC分类号： G10L21/038
摘要： Provided are a method and apparatus for encoding and decoding an audio signal. According to the present application, a signal of a high frequency band above a preset frequency band is adaptively encoded or decoded in the time domain or in the frequency domain by using a signal of a low frequency band below the preset frequency band. As such, the sound quality of a high frequency signal is not deteriorate even when an audio signal is encoded or decoded by using a small number of bits and thus coding efficiency may be maximized.
摘要翻译：提供了一种用于对音频信号进行编码和解码的方法和装置。根据本申请，通过使用低于预设频带的低频信号，在时域或频域中自适应地编码或解码高于预置频带的高频带的信号。因此，即使当通过使用少量位来对音频信号进行编码或解码时，高频信号的声音质量也不会恶化，从而可以使编码效率最大化。

29. 发明申请

US20090110201A1 METHOD, MEDIUM, AND SYSTEM ENCODING/DECODING MULTI-CHANNEL SIGNAL 有权
标题翻译：方法，介质和系统编码/解码多通道信号
公开(公告)号：US20090110201A1
公开(公告)日：2009-04-30
申请号：US12107117
申请日：2008-04-22
申请人： Jung-hoe KIM , Eun-mi Oh , Konstantly Osipov , Ki-hyun Choo
发明人： Jung-hoe KIM , Eun-mi Oh , Konstantly Osipov , Ki-hyun Choo
IPC分类号： H04H20/47
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。

30. 发明申请

US20080120095A1 METHOD AND APPARATUS TO ENCODE AND/OR DECODE AUDIO AND/OR SPEECH SIGNAL 审中-公开
标题翻译：编码和/或解码音频和/或语音信号的方法和装置
公开(公告)号：US20080120095A1
公开(公告)日：2008-05-22
申请号：US11941249
申请日：2007-11-16
申请人： Eun-mi OH , Chang-youg Son , Ki-hyun Choo , Jung-hoe Kim
发明人： Eun-mi OH , Chang-youg Son , Ki-hyun Choo , Jung-hoe Kim
IPC分类号： G10L19/00
CPC分类号： G10L19/20 , G10L19/0204 , G10L19/0212 , G10L19/032
摘要： A method and apparatus to encode and/or decode a speech signal and/or an audio signal. The apparatus includes a first domain transforming unit, a frequency domain encoding unit, and a multiplexing unit to encode the speech signal and/or an audio signal. The apparatus includes a demultiplexing unit, a frequency domain decoding unit, and a second domain inverse transformation unit to decode the speech signal and/or the audio signal. The method and apparatus are capable of effectively encoding or decoding all of a speech signal, an audio signal, and a mixed signal of a speech signal and an audio signal, and improving the quality of sound by using a small number of bits.
摘要翻译：一种用于对语音信号和/或音频信号进行编码和/或解码的方法和装置。该装置包括第一域变换单元，频域编码单元和用于对语音信号和/或音频信号进行编码的复用单元。该装置包括解复用单元，频域解码单元和用于解码语音信号和/或音频信号的第二域逆变换单元。该方法和装置能够有效地编码或解码语音信号，音频信号和语音信号和音频信号的混合信号，并且通过使用少量的比特来提高声音的质量。

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