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11. 发明申请

US20110313778A1 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：US20110313778A1
公开(公告)日：2011-12-22
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： G10L21/00
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。

12. 发明申请

US20080126096A1 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：US20080126096A1
公开(公告)日：2008-05-29
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： 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。

13. 发明申请

US20070299656A1 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：US20070299656A1
公开(公告)日：2007-12-27
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： G10L19/14 , G10L21/00
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。

14. 发明授权

US08798172B2 Method and apparatus to conceal error in decoded audio signal 有权
标题翻译：隐藏解码音频信号误差的方法和装置
公开(公告)号：US08798172B2
公开(公告)日：2014-08-05
申请号：US11749249
申请日：2007-05-16
申请人： Eun-mi Oh , Ho-sang Sung , Chang-yong Son , Ki-hyun Choo , Jung-hoe Kim
发明人： Eun-mi Oh , Ho-sang Sung , Chang-yong Son , Ki-hyun Choo , Jung-hoe Kim
IPC分类号： H04N7/12 , G06F11/00
CPC分类号： G10L19/005
摘要： A method and apparatus to decode audio data constructed with a plurality of layers. An error concealment method of process a decoded bitstream selects one of a frequency domain and a time domain in order to conceal the errors, detects a position where the errors exist in a frame when the error concealment method in the frequency domain is selected, and conceals the errors only in a segment after the detected position.
摘要翻译：一种解码由多层构成的音频数据的方法和装置。处理解码比特流的错误隐藏方法选择频域和时域中的一个以隐藏错误，当选择频域中的错误隐藏方法时，检测在帧中存在错误的位置，并且隐藏检测到位置之后的错误。

15. 发明授权

US08630863B2 Method and apparatus for encoding and decoding audio/speech signal 有权
标题翻译：用于对音频/语音信号进行编码和解码的方法和装置
公开(公告)号：US08630863B2
公开(公告)日：2014-01-14
申请号：US11872116
申请日：2007-10-15
申请人： Chang-yong Son , Eun-mi Oh , Jung-hoe Kim , Ho-sang Sung , Kang-eun Lee , Ki-hyun Choo
发明人： Chang-yong Son , Eun-mi Oh , Jung-hoe Kim , Ho-sang Sung , Kang-eun Lee , Ki-hyun Choo
IPC分类号： G10L19/00 , G10L19/02
CPC分类号： G10L19/00 , G10L19/025
摘要： Provided is a method of encoding an audio/speech signal, the method including determining a variable length of a frame, that is, a processing unit of an input signal in accordance with a position of an attack in the input signal; transforming each frame of the input signal to a frequency domain and dividing the frame into a plurality of sub frequency bands; and, if a signal of a sub frequency band is determined to be encoded in the frequency domain, encoding the signal of the sub frequency band in the frequency domain, and if the signal of the sub frequency band is determined to be encoded in a time domain, inverse transforming the signal of the sub frequency band to the time domain and encoding the inverse transformed signal in the time domain. According to the present invention, the audio/speech signal may be efficiently encoded by controlling time resolution and frequency resolution.
摘要翻译：提供了一种对音频/语音信号进行编码的方法，该方法包括根据输入信号中的攻击位置来确定帧的可变长度，即输入信号的处理单元; 将所述输入信号的每个帧变换为频域并将所述帧划分为多个子频带; 并且如果确定在频域中编码子频带的信号，则对频域中的子频带的信号进行编码，并且如果确定子频带的信号被编码在一个时间域，将子频带的信号逆变换到时域，并对时域中的逆变换信号进行编码。根据本发明，可以通过控制时间分辨率和频率分辨率来有效地编码音频/语音信号。

16. 发明授权

US08010348B2 Adaptive encoding and decoding with forward linear prediction 有权
标题翻译：具有前向线性预测的自适应编码和解码
公开(公告)号：US08010348B2
公开(公告)日：2011-08-30
申请号：US11774664
申请日：2007-07-09
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： G10L19/02 , G10L19/04 , G10L19/08
CPC分类号： G10L19/18 , G10L19/0212 , G10L19/06 , G10L19/09 , G10L19/20 , G10L25/18
摘要： An adaptive encoding method includes splitting an input signal into a low-frequency band signal and a high-frequency band signal; performing forward adaptive linear prediction on the low-frequency band signal and thus filtering the low-frequency band signal; selectively performing backward adaptive linear prediction or long-term prediction on the filtered low-frequency band signal according to the analysis result of the low-frequency band signal; transforming the low-frequency band signal, on which backward adaptive linear prediction or long-term prediction has been performed, into a signal in a frequency domain and quantizing the signal; and encoding the high-frequency band signal using the low-frequency band signal, on which backward adaptive linear prediction or long-term prediction has been performed, or the quantized signal. Therefore, compression efficiency of both speech and music signals can be enhanced, and a robust compression method can be provided for various audio contents at a low bit rate.
摘要翻译：一种自适应编码方法，包括将输入信号分成低频带信号和高频带信号; 对低频带信号执行前向自适应线性预测，从而对低频带信号进行滤波; 根据低频带信号的分析结果，对经滤波的低频带信号选择性地执行反向自适应线性预测或长期预测; 将已经进行了反向自适应线性预测或长期预测的低频带信号变换为频域中的信号并量化信号; 并且使用已经执行了反向自适应线性预测或长期预测的低频带信号或量化信号对高频带信号进行编码。因此，可以提高语音和音乐信号的压缩效率，并且可以以低比特率为各种音频内容提供鲁棒的压缩方法。

17. 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。

18. 发明申请

US20080162121A1 METHOD, MEDIUM, AND APPARATUS TO CLASSIFY FOR AUDIO SIGNAL, AND METHOD, MEDIUM AND APPARATUS TO ENCODE AND/OR DECODE FOR AUDIO SIGNAL USING THE SAME 审中-公开
标题翻译：用于分类音频信号的方法，媒体和装置，以及使用其进行音频信号的编码和/或解码的方法，媒体和装置
公开(公告)号：US20080162121A1
公开(公告)日：2008-07-03
申请号：US11964963
申请日：2007-12-27
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： G10L19/00
CPC分类号： G10L19/22
摘要： Provided are a classifying method and apparatus for an audio signal, and an encoding/decoding method and apparatus for an audio signal using the classifying method and apparatus. In the classification method, an audio signal is classified by adaptively adjusting a classification threshold for a frame of the audio signal that is to be classified according to a long-term feature of the audio signal, thereby improving a hit rate of signal classification, suppressing frequent mode switching per frame, improving noise tolerance, and providing smooth reconstruction of the audio signal.
摘要翻译：提供了一种用于音频信号的分类方法和装置，以及使用分类方法和装置的用于音频信号的编码/解码方法和装置。在分类方法中，通过根据音频信号的长期特征自适应地调整要分类的音频信号的帧的分类阈值来分类音频信号，从而提高信号分类的命中率，抑制每帧频繁模式切换，提高噪声容限，并提供音频信号的平滑重建。

19. 发明申请

US20080133242A1 FRAME ERROR CONCEALMENT METHOD AND APPARATUS AND ERROR CONCEALMENT SCHEME CONSTRUCTION METHOD AND APPARATUS 审中-公开
标题翻译：框架错误隐藏方法和装置与错误隐藏方案构造方法和装置
公开(公告)号：US20080133242A1
公开(公告)日：2008-06-05
申请号：US11843289
申请日：2007-08-22
申请人： Ho-sang SUNG , Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh , Chang-yong Son , Kang-eun Lee
发明人： Ho-sang SUNG , Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh , Chang-yong Son , Kang-eun Lee
IPC分类号： G10L13/00
CPC分类号： G10L19/0017 , G10L19/005 , G10L19/022
摘要： Provided are a frame error concealment method and apparatus and an error concealment scheme construction method and apparatus. The frame error concealment method includes generating a new signal by synthesizing a plurality of previous signals that are similar to a signal of an error frame and reconstructing the signal of the error frame using the generated signal.
摘要翻译：提供了帧错误隐藏方法和装置以及错误隐藏方案的构造方法和装置。帧错误隐藏方法包括通过合成与错误帧的信号相似的多个先前信号并使用所生成的信号重建错误帧的信号来生成新信号。

20. 发明申请

US20080010062A1 ADAPTIVE ENCODING AND DECODING METHODS AND APPARATUSES 有权
标题翻译：自适应编码和解码方法和装置
公开(公告)号：US20080010062A1
公开(公告)日：2008-01-10
申请号：US11774664
申请日：2007-07-09
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： G10L19/00
CPC分类号： G10L19/18 , G10L19/0212 , G10L19/06 , G10L19/09 , G10L19/20 , G10L25/18
摘要： An adaptive encoding method includes splitting an input signal into a low-frequency band signal and a high-frequency band signal; performing forward adaptive linear prediction on the low-frequency band signal and thus filtering the low-frequency band signal; selectively performing backward adaptive linear prediction or long-term prediction on the filtered low-frequency band signal according to the analysis result of the low-frequency band signal; transforming the low-frequency band signal, on which backward adaptive linear prediction or long-term prediction has been performed, into a signal in a frequency domain and quantizing the signal; and encoding the high-frequency band signal using the low-frequency band signal, on which backward adaptive linear prediction or long-term prediction has been performed, or the quantized signal. Therefore, compression efficiency of both speech and music signals can be enhanced, and a robust compression method can be provided for various audio contents at a low bit rate.
摘要翻译：一种自适应编码方法，包括将输入信号分成低频带信号和高频带信号; 对低频带信号执行前向自适应线性预测，从而对低频带信号进行滤波; 根据低频带信号的分析结果，对经滤波的低频带信号选择性地执行反向自适应线性预测或长期预测; 将已经进行了反向自适应线性预测或长期预测的低频带信号变换为频域中的信号并量化信号; 并且使用已经执行了反向自适应线性预测或长期预测的低频带信号或量化信号对高频带信号进行编码。因此，可以提高语音和音乐信号的压缩效率，并且可以以低比特率为各种音频内容提供鲁棒的压缩方法。

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