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1. 发明申请

US20080120117A1 Method, medium, and apparatus with bandwidth extension encoding and/or decoding 有权
标题翻译：具有带宽扩展编码和/或解码的方法，介质和装置
公开(公告)号：US20080120117A1
公开(公告)日：2008-05-22
申请号：US11980643
申请日：2007-10-31
申请人： Ki-hyun Choo , Eun-mi Oh , Miao Lei
发明人： Ki-hyun Choo , Eun-mi Oh , Miao Lei
IPC分类号： G10L19/00
CPC分类号： G10L21/038
摘要： A method, medium, and apparatus encoding and/or decoding audio signals. By encoding and/or decoding a high-frequency signal using an excitation signal extracted from a low-frequency signal, coding efficiency can be maximized because sound quality of a signal corresponding to a high-frequency region does not deteriorate when audio signals are encoded or decoded using a low bit amounts or rates.
摘要翻译：编码和/或解码音频信号的方法，介质和装置。通过使用从低频信号提取的激励信号对高频信号进行编码和/或解码，可以最大化编码效率，因为当音频信号被编码时，对应于高频区域的信号的声音质量不会劣化，或者使用低位数或速率进行解码。

2. 发明授权

US08639500B2 Method, medium, and apparatus with bandwidth extension encoding and/or decoding 有权
标题翻译：具有带宽扩展编码和/或解码的方法，介质和装置
公开(公告)号：US08639500B2
公开(公告)日：2014-01-28
申请号：US11980643
申请日：2007-10-31
申请人： Ki-hyun Choo , Eun-mi Oh , Miao Lei
发明人： Ki-hyun Choo , Eun-mi Oh , Miao Lei
IPC分类号： G10L19/00
CPC分类号： G10L21/038
摘要： A method, medium, and apparatus encoding and/or decoding audio signals. By encoding and/or decoding a high-frequency signal using an excitation signal extracted from a low-frequency signal, coding efficiency can be maximized because sound quality of a signal corresponding to a high-frequency region does not deteriorate when audio signals are encoded or decoded using a low bit amounts or rates.
摘要翻译：编码和/或解码音频信号的方法，介质和装置。通过使用从低频信号提取的激励信号对高频信号进行编码和/或解码，可以最大化编码效率，因为当音频信号被编码时，对应于高频区域的信号的声音质量不会劣化，或者使用低位数或速率进行解码。

3. 发明授权

US07864843B2 Method and apparatus to encode and/or decode signal using bandwidth extension technology 有权
标题翻译：使用带宽扩展技术对信号进行编码和/或解码的方法和装置
公开(公告)号：US07864843B2
公开(公告)日：2011-01-04
申请号：US11757528
申请日：2007-06-04
申请人： Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh , Miao Lei , Chang-yong Son
发明人： Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh , Miao Lei , Chang-yong Son
IPC分类号： H04N11/02 , G10L13/00
CPC分类号： G10L19/0208 , G10L21/038
摘要： A method and apparatus to perform bandwidth extension encoding and decoding encodes and/or decodes a high frequency signal using an excitation signal for a low frequency signal encoded in a time domain or a frequency domain or using an excitation spectrum for the low frequency signal. Accordingly, although an audio signal is encoded or decoded using a small number of bits, the quality of sound corresponding to a signal in a high frequency band does not degrade. Therefore, a coding efficiency of the audio signal can be maximized.
摘要翻译：执行带宽扩展编码和解码的方法和装置使用用于在时域或频域中编码的低频信号的激励信号或者使用低频信号的激励频谱对高频信号进行编码和/或解码。因此，尽管使用少量的比特对音频信号进行编码或解码，但是与高频带中的信号相对应的声音质量不会降低。因此，可以使音频信号的编码效率最大化。

4. 发明授权

US08990075B2 Method, apparatus, and medium for bandwidth extension encoding and decoding 有权
标题翻译：用于带宽扩展编码和解码的方法，装置和介质
公开(公告)号：US08990075B2
公开(公告)日：2015-03-24
申请号：US13544543
申请日：2012-07-09
申请人： Eun-mi Oh , Ki-Hyun Choo , Jung-hoo Kim
发明人： Eun-mi Oh , Ki-Hyun Choo , Jung-hoo Kim
IPC分类号： G10L19/04 , G10L21/038 , G10L19/20 , G10L19/02 , G10L19/12
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.
摘要翻译：提供了一种通过使用与音频信号或语音信号对应的低频带信号来对高频带信号进行编码/解码的方法，装置和媒体。因此，由于通过使用低频带信号对高频带信号进行编码和解码，所以可以以小的数据大小进行编码和解码，同时避免音质的恶化。

5. 发明授权

US08712782B2 Method and apparatus to determine encoding mode of audio signal and method and apparatus to encode and/or decode audio signal using the encoding mode determination method and apparatus 有权
公开(公告)号：US08712782B2
公开(公告)日：2014-04-29
申请号：US11939074
申请日：2007-11-13
申请人： Chang-yong Son , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim , Ho-sang Sung , Kang-eun Lee
发明人： Chang-yong Son , Eun-mi Oh , Ki-hyun Choo , Jung-hoe Kim , Ho-sang Sung , Kang-eun Lee
IPC分类号： G10L21/00 , G10L19/22 , G10L19/00 , G10L19/005 , G10L19/02 , G10L19/18
摘要： A method and apparatus to determine an encoding mode of an audio signal, and a method and apparatus to encode an audio signal according to the encoding mode. In the encoding mode determination method, a mode determination threshold for the current frame that is subject to encoding mode determination is adaptively adjusted according to a long-term feature of the audio signal for a frame (the current frame) that is subject to encoding mode determination, thereby improving the hit rate of encoding mode determination and signal classification, suppressing frequent oscillation of an encoding mode in frame units, improving noise tolerance, and improving smoothness of a reconstructed audio signal.

6. 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。

7. 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。

8. 发明授权

US08219393B2 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：用于音频信号的错误隐藏方法和装置以及使用其的音频信号的解码方法和装置
公开(公告)号：US08219393B2
公开(公告)日：2012-07-10
申请号：US11930752
申请日：2007-10-31
申请人： Eun-mi Oh , Ki-hyun Choo , Ho-sang Sung , Chang-yong Son , Jung-hoe Kim , Kang-eun Lee
发明人： Eun-mi Oh , Ki-hyun Choo , Ho-sang Sung , Chang-yong Son , Jung-hoe Kim , Kang-eun Lee
IPC分类号： G10L21/00
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。

9. 发明申请

US20120170595A1 METHOD AND APPARATUS FOR MULTIPLEXING AND DEMULTIPLEXING ASYNCHRONOUS BITSTREAMS 失效
标题翻译：用于多重复制和异源双歧杆菌的方法和装置
公开(公告)号：US20120170595A1
公开(公告)日：2012-07-05
申请号：US13417419
申请日：2012-03-12
申请人： Kang-eun LEE , Ki-hyun Choo , Jung-hoo Kim , Eun-mi Oh
发明人： Kang-eun LEE , Ki-hyun Choo , Jung-hoo Kim , Eun-mi Oh
IPC分类号： H04J3/22
CPC分类号： H04N21/4341 , H04N21/233 , H04N21/236 , H04N21/2368 , H04N21/434 , H04N21/439
摘要： Provided is a method and apparatus for multiplexing bitstreams that are coded to have different frame lengths using asynchronous time alignment, in which, based on the length of each frame of a bitstream selected as a reference bitstream from among bitstreams coded to have different frame lengths by a plurality of coders, the remaining bitstreams except for the reference bitstream are divided and multiplexed.
摘要翻译：提供了一种用于复用使用异步时间对准被编码为具有不同帧长度的比特流的方法和装置，其中，基于从被编码为具有不同帧长度的比特流中选择作为参考比特流的比特流的每个帧的长度，多个编码器，除了参考比特流之外的剩余比特流被分割和多路复用。

10. 发明申请

US20120116757A1 METHOD AND APPARATUS FOR ENCODING AND DECODING HIGH FREQUENCY SIGNAL 有权
标题翻译：编码和解码高频信号的方法和装置
公开(公告)号：US20120116757A1
公开(公告)日：2012-05-10
申请号：US13354749
申请日：2012-01-20
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： G10L19/00
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。

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