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11. 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。

12. 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。

13. 发明申请

US20070296614A1 WIDEBAND SIGNAL ENCODING, DECODING AND TRANSMISSION 失效
标题翻译：宽带信号编码，解码和传输
公开(公告)号：US20070296614A1
公开(公告)日：2007-12-27
申请号：US11766322
申请日：2007-06-21
申请人： Kang-eun Lee , Eun-mi Oh , Ho-sang Sung , Chang-yong Son , Ki-hyun Choo , Jung-hoe Kim
发明人： Kang-eun Lee , Eun-mi Oh , Ho-sang Sung , Chang-yong Son , Ki-hyun Choo , Jung-hoe Kim
IPC分类号： H03M7/00
CPC分类号： G10L19/0208 , G10L21/038
摘要： Encoding and/or decoding a wideband signal produces high frequency band spectra from low frequency band spectral information. Linear prediction filter coefficients are determined for the entire wideband spectrum of an input signal. An energy value in each of a plurality of sub-bands in the high frequency band is determined and encoded. The short-term correlation removed input signal is then down-sampled to form a low frequency band signal. At a decoder, the high frequency band signal is generated using the encoded low frequency band signal. The energy in each sub-band of the high frequency band is adjusted using the encoded energy value. Thus, the spectral envelope for the entire wideband signal is synthesized and decoded using linear predictive synthesis.
摘要翻译：编码和/或解码宽带信号从低频带频谱信息产生高频带频谱。对于输入信号的整个宽带谱确定线性预测滤波器系数。确定并编码高频带中的多个子带中的每一个中的能量值。然后将短期相关去除输入信号进行下采样以形成低频带信号。在解码器处，使用编码的低频带信号产生高频带信号。使用编码的能量值来调整高频带的每个子带中的能量。因此，使用线性预测合成来合成和解码整个宽带信号的频谱包络。

14. 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。

15. 发明申请

US20080120096A1 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：US20080120096A1
公开(公告)日：2008-05-22
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： G10L19/14 , G10L21/02
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分级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。

16. 发明授权

US08615021B2 Method and apparatus to multiplex and demultiplex 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：US08615021B2
公开(公告)日：2013-12-24
申请号：US13417419
申请日：2012-03-12
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： H04J3/16
CPC分类号： H04N21/4341 , H04N21/233 , H04N21/236 , H04N21/2368 , H04N21/434 , H04N21/439
摘要： Provided is a method and apparatus to multiplex 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：提供了一种用于使用异步时间对准来复用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被多个编码器，除了参考比特流之外的剩余比特流被分割和多路复用。

17. 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。

18. 发明授权

US07702504B2 Bitrate scalable speech coding and decoding apparatus and method 有权
标题翻译：比特率可扩展语音编码和解码装置及方法
公开(公告)号：US07702504B2
公开(公告)日：2010-04-20
申请号：US10886662
申请日：2004-07-09
申请人： Chang-yong Son , Kang-eun Lee , Sang-won Kang , Sang-hyun Chi
发明人： Chang-yong Son , Kang-eun Lee , Sang-won Kang , Sang-hyun Chi
IPC分类号： G10L19/00
CPC分类号： G10L19/24 , G10L19/12
摘要： A coding apparatus including a base layer, a speech quality enhancement layer, and a multiplexer. The base layer filters an input speech signal using linear prediction coding and generates an excitation signal corresponding to the filtered speech signal through a fixed codebook search and an adaptive codebook search. The speech quality enhancement layer searches a fixed codebook using parameters obtained through the fixed codebook search in the base layer, or searches the fixed codebook using a target signal, which is obtained by removing a contribution of a fixed codebook of the base layer and a signal which is obtained by synthesizing and filtering a previous fixed codebook of the speech quality enhancement layer from a target signal for the fixed codebook search of the base layer. The multiplexer multiplexes signals generated by the base layer and the at least one speech quality enhancement layer.
摘要翻译：一种包括基本层，语音质量增强层和多路复用器的编码装置。基层使用线性预测编码对输入语音信号进行滤波，并通过固定码本搜索和自适应码本搜索产生与经滤波的语音信号相对应的激励信号。语音质量增强层使用在基层中通过固定码本搜索获得的参数来搜索固定码本，或者使用目标信号搜索固定码本，该目标信号是通过去除基本层的固定码本的贡献和信号通过从基本层的固定码本搜索的目标信号合成和过滤语音质量增强层的先前固定码本而获得。复用器复用由基本层和至少一个语音质量增强层产生的信号。

19. 发明授权

US08050913B2 Method and apparatus for implementing fixed codebooks of speech codecs as common module 有权
标题翻译：实现语音编解码器固定码本作为通用模块的方法和装置
公开(公告)号：US08050913B2
公开(公告)日：2011-11-01
申请号：US11930750
申请日：2007-10-31
申请人： Kang-eun Lee , Do-hyung Kim , Chang-yong Son
发明人： Kang-eun Lee , Do-hyung Kim , Chang-yong Son
IPC分类号： G10L19/12
CPC分类号： G10L19/16 , G10L19/12
摘要： A method and apparatus for implementing fixed codebooks as a common module are provided. In the method of implementing fixed codebooks of a plurality of speech codecs as a common module, it is possible to include only a part excluding fixed codebooks in a communication terminal or communication system, support various speech codecs without using a chip with high price and high performance, and reduce a memory space that is occupied by the speech codecs by generating a track of a fixed codebook corresponding to a speech codec based on information on the speech codec among the plurality of speech codecs and selecting a codebook vector corresponding to a target signal among codebook vectors constructed with combinations of pulses represented by the generated track. In addition, it is possible to reduce processing complexity as compared with a case of embodying the common fixed codebook module in software by embodying the common fixed codebook module in hardware. In addition, it is possible to improve the entire voice processing performance by applying the latest fixed codebook searching algorithm only to the common fixed codebook, thereby easily applying the latest fixed codebook searching algorithm to the entire voice codec.
摘要翻译：提供了一种用于实现固定码本作为公共模块的方法和装置。在将多个语音编解码器的固定码本实现为公共模块的方法中，可以在通信终端或通信系统中仅包括不包括固定码本的部分，而不使用高价格高的芯片支持各种语音编解码器通过基于多个语音编解码器中的语音编解码器的信息生成与语音编解码器对应的固定码本的轨道，并且选择与目标信号相对应的码本矢量，来降低语音编解码器所占用的存储器空间在由所生成的轨道表示的脉冲的组合构成的码本矢量中。此外，与通过在硬件中实施公共固定码本模块的软件中体现公共固定码本模块的情况相比，可以降低处理复杂度。此外，通过将最新的固定码本搜索算法应用于公共固定码本，可以提高整个语音处理性能，从而容易地将最新的固定码本搜索算法应用于整个语音编解码器。

20. 发明申请

US20050010404A1 Bit rate scalable speech coding and decoding apparatus and method 有权
标题翻译：比特率可扩展语音编码和解码装置及方法
公开(公告)号：US20050010404A1
公开(公告)日：2005-01-13
申请号：US10886662
申请日：2004-07-09
申请人： Chang-yong Son , Kang-eun Lee , Sang-won Kang , Sang-hyun Chi
发明人： Chang-yong Son , Kang-eun Lee , Sang-won Kang , Sang-hyun Chi
IPC分类号： G10L19/12 , G10L19/14 , H03M7/30 , G10L19/04
CPC分类号： G10L19/24 , G10L19/12
摘要： A coding apparatus including a base layer, a speech quality enhancement layer, and a multiplexer. The base layer filters an input speech signal using linear prediction coding and generates an excitation signal corresponding to the filtered speech signal through a fixed codebook search and an adaptive codebook search. The speech quality enhancement layer searches a fixed codebook using parameters obtained through the fixed codebook search in the base layer, or searches the fixed codebook using a target signal, which is obtained by removing a contribution of a fixed codebook of the base layer and a signal which is obtained by synthesizing and filtering a previous fixed codebook of the speech quality enhancement layer from a target signal for the fixed codebook search of the base layer. The multiplexer multiplexes signals generated by the base layer and the at least one speech quality enhancement layer.
摘要翻译：一种包括基本层，语音质量增强层和多路复用器的编码装置。基层使用线性预测编码对输入语音信号进行滤波，并通过固定码本搜索和自适应码本搜索产生与经滤波的语音信号相对应的激励信号。语音质量增强层使用在基层中通过固定码本搜索获得的参数来搜索固定码本，或者使用目标信号搜索固定码本，该目标信号是通过去除基本层的固定码本的贡献和信号通过从基本层的固定码本搜索的目标信号合成和过滤语音质量增强层的先前固定码本而获得。复用器复用由基本层和至少一个语音质量增强层产生的信号。

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