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51. 发明授权

US08134910B2 Method and apparatus for multiplexing and demultiplexing asynchronous bitstreams 失效
标题翻译：用于复用和解复用异步比特流的方法和装置
公开(公告)号：US08134910B2
公开(公告)日：2012-03-13
申请号：US11935631
申请日：2007-11-06
申请人： Kang-eun Lee , Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh
发明人： Kang-eun Lee , Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh
IPC分类号： H04J11/00
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。

52. 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。

53. 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。

54. 发明授权

US07750829B2 Scalable encoding and/or decoding method and apparatus 有权
标题翻译：可扩展编码和/或解码方法和装置
公开(公告)号：US07750829B2
公开(公告)日：2010-07-06
申请号：US12061028
申请日：2008-04-02
申请人： Jung-hoe Kim , Eun-mi Oh , Ki-hyun Choo , Boris Kudryashov , Olga Prokofyeva
发明人： Jung-hoe Kim , Eun-mi Oh , Ki-hyun Choo , Boris Kudryashov , Olga Prokofyeva
IPC分类号： H03M7/40
CPC分类号： G10L19/24 , G10L19/0017 , H04N19/13 , H04N19/1887 , H04N19/37
摘要： A method and apparatus to scalably encode or decode an audio signal or a video signal. A signal distribution is considered after binarization is performed based on a tree structure. Thus, a decoding end can minimize generation of quantization errors and restore an original signal. In addition, only frequency components perceptually important in terms of human hearing are set to an upper layer and encoded without decreasing a bandwidth which is restored from an upper layer. Therefore, sound quality can be increased by decreasing quantization noise while maintaining a relatively large frequency bandwidth, and the degradation of a compression performance is prevented.
摘要翻译：一种用于可缩放地编码或解码音频信号或视频信号的方法和装置。在基于树结构执行二值化之后考虑信号分布。因此，解码端可以最小化量化误差的产生并恢复原始信号。此外，只有在人听觉上感知重要的频率分量被设置为上层，并且在不减少从上层恢复的带宽的情况下进行编码。因此，通过降低量化噪声同时维持相对较大的频率带宽可以提高声音质量，并且防止压缩性能的劣化。

55. 发明申请

US20090110208A1 APPARATUS, MEDIUM AND METHOD TO ENCODE AND DECODE HIGH FREQUENCY SIGNAL 有权
标题翻译：装置，介质和编码和解码高频信号的方法
公开(公告)号：US20090110208A1
公开(公告)日：2009-04-30
申请号：US12256704
申请日：2008-10-23
申请人： Ki-hyun CHOO , Eun-mi Oh , Ho-sang Sung , Jung-hoe Kim , Mi-young Kim
发明人： Ki-hyun CHOO , Eun-mi Oh , Ho-sang Sung , Jung-hoe Kim , Mi-young Kim
IPC分类号： H03B29/00
CPC分类号： G10L25/93 , G10L21/038
摘要： A method and apparatus to encoding or decoding an audio signal is provided. In the method and apparatus, a noise-floor level to use in encoding or decoding a high frequency signal is updated according to the degree of a voiced or unvoiced sound included in the signal.
摘要翻译：提供了一种对音频信号进行编码或解码的方法和装置。在该方法和装置中，根据信号中包含的有声或无声音的程度来更新用于对高频信号进行编码或解码的噪声底层电平。

56. 发明申请

US20090073008A1 SCALABLE ENCODING AND/OR DECODING METHOD AND APPARATUS 有权
标题翻译：可编程和/或解码方法和装置
公开(公告)号：US20090073008A1
公开(公告)日：2009-03-19
申请号：US12061028
申请日：2008-04-02
申请人： Jung-hoe KIM , Eun-mi Oh , Ki-hyun Choo , Boris Kudryashov , Olga Prokofyeva
发明人： Jung-hoe KIM , Eun-mi Oh , Ki-hyun Choo , Boris Kudryashov , Olga Prokofyeva
IPC分类号： H03M7/40
CPC分类号： G10L19/24 , G10L19/0017 , H04N19/13 , H04N19/1887 , H04N19/37
摘要： A method and apparatus to scalably encode or decode an audio signal or a video signal. A signal distribution is considered after binarization is performed based on a tree structure. Thus, a decoding end can minimize generation of quantization errors and restore an original signal. In addition, only frequency components perceptually important in terms of human hearing are set to an upper layer and encoded without decreasing a bandwidth which is restored from an upper layer. Therefore, sound quality can be increased by decreasing quantization noise while maintaining a relatively large frequency bandwidth, and the degradation of a compression performance is prevented.
摘要翻译：一种用于可缩放地编码或解码音频信号或视频信号的方法和装置。在基于树结构执行二值化之后考虑信号分布。因此，解码端可以最小化量化误差的产生并恢复原始信号。此外，只有在人听觉上感知重要的频率分量被设置为上层，并且在不减少从上层恢复的带宽的情况下进行编码。因此，通过降低量化噪声同时维持相对较大的频率带宽可以提高声音质量，并且防止压缩性能的劣化。

57. 发明申请

US20080253576A1 METHOD AND APPARATUS FOR ENCODING AND DECODING STEREO SIGNAL AND MULTI-CHANNEL SIGNAL 有权
标题翻译：编码和解码立体信号和多信道信号的方法和装置
公开(公告)号：US20080253576A1
公开(公告)日：2008-10-16
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： H04H20/86
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。

58. 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。

59. 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。

60. 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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