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1. 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。

2. 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。

3. 发明授权

US07630890B2 Block-constrained TCQ method, and method and apparatus for quantizing LSF parameter employing the same in speech coding system 有权
标题翻译：块约束TCQ方法，以及在语音编码系统中量化LSF参数的方法和装置
公开(公告)号：US07630890B2
公开(公告)日：2009-12-08
申请号：US10780899
申请日：2004-02-19
申请人： Chang-yong Son , Sang-won Kang , Yong-won Shin , Thomas R. Fischer
发明人： Chang-yong Son , Sang-won Kang , Yong-won Shin , Thomas R. Fischer
IPC分类号： G10L19/00 , G10L19/12
CPC分类号： G10L19/0212 , G10L19/06
摘要： A block-constrained Trellis coded quantization (TCQ) method and a method and apparatus for quantizing line spectral frequency (LSF) parameters employing the same in a speech coding system wherein the LSF coefficient quantizing method includes: removing the direct current (DC) component in an input LSF coefficient vector; generating a first prediction error vector by performing inter-frame and intra-frame prediction for the LSF coefficient vector, in which the DC component is removed, quantizing the first prediction error vector by using the BC-TCQ algorithm, and by performing intra-frame and inter-frame prediction compensation, generating a quantized first LSF coefficient vector; generating a second prediction error vector by performing intra-frame prediction for the LSF coefficient vector, in which the DC component is removed, quantizing the second prediction error vector by using the BC-TCQ algorithm, and then, by performing intra-frame prediction compensation, generating a quantized second LSF coefficient vector; and selectively outputting a vector having a shorter Euclidian distance to the input LSF coefficient vector between the generated quantized first and second LSF coefficient vectors.
摘要翻译：块约束网格编码量化（TCQ）方法和用于量化在语音编码系统中采用该频谱频率频率（LSF）参数的线谱频率（LSF）参数的方法和装置，其中LSF系数量化方法包括：去除直流（DC）分量输入LSF系数向量; 通过对其中去除了DC分量的LSF系数向量进行帧间和帧内预测来生成第一预测误差向量，通过使用BC-TCQ算法量化第一预测误差向量，并且通过执行帧内和帧间预测补偿，生成量化的第一LSF系数向量; 通过对去除了DC分量的LSF系数向量进行帧内预测，通过使用BC-TCQ算法对第二预测误差向量进行量化，然后通过进行帧内预测补偿来生成第二预测误差矢量产生量化的第二LSF系数矢量; 并且在生成的量化的第一和第二LSF系数向量之间选择性地输出具有较短的欧几里德距离的向量到输入的LSF系数向量。

4. 发明申请

US20120278089A1 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：US20120278089A1
公开(公告)日：2012-11-01
申请号：US13544203
申请日：2012-07-09
申请人： Eun-mi OH , Ki-hyun Choo , Ho-sang Sung , Chang-yong Son , Jung-heo Kim , Kang-eun Lee
发明人： Eun-mi OH , Ki-hyun Choo , Ho-sang Sung , Chang-yong Son , Jung-heo 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。

5. 发明授权

US07498959B2 Apparatus and method of wideband decoding to synthesize a decoded excitation signal with a generated high frequency band signal 失效
标题翻译：宽带解码的装置和方法，用于产生高频带信号来合成解码的激励信号
公开(公告)号：US07498959B2
公开(公告)日：2009-03-03
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： H03M7/12
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。

6. 发明授权

US08612215B2 Method and apparatus to extract important frequency component of audio signal and method and apparatus to encode and/or decode audio signal using the same 失效
标题翻译：提取音频信号的重要频率分量的方法和装置以及使用其编码和/或解码音频信号的方法和装置
公开(公告)号：US08612215B2
公开(公告)日：2013-12-17
申请号：US11930844
申请日：2007-10-31
申请人： Chang-yong Son , Bun-mi Oh , Ho-sang Sung , Ki-hyun Choo , Jung-hue Kim , Kang-eun Lee
发明人： Chang-yong Son , Bun-mi Oh , Ho-sang Sung , Ki-hyun Choo , Jung-hue Kim , Kang-eun Lee
IPC分类号： G10L19/14
CPC分类号： G10L19/0204 , G10L19/093
摘要： A method and apparatus to extract an important frequency component of an audio signal and a method and apparatus to encode and/or decode an audio signal by using the same. The method of extracting an important frequency component of an audio signal includes converting an audio signal of a time domain into an audio signal of a frequency domain, selecting a frequency band having a harmonic feature from the converted audio signal of the frequency domain, and extracting an important frequency component from the selected frequency band having the harmonic feature.
摘要翻译：一种用于提取音频信号的重要频率分量的方法和装置，以及通过使用该方法和装置对音频信号进行编码和/或解码的方法和装置。提取音频信号的重要频率分量的方法包括将时域的音频信号转换为频域的音频信号，从频域的转换的音频信号中选择具有谐波特征的频带，以及提取来自具有谐波特征的所选频带的重要频率分量。

7. 发明申请

US20090037169A1 METHOD AND APPARATUS FOR IMPLEMENTING FIXED CODEBOOKS OF SPEECH CODECS AS COMMON MODULE 有权
标题翻译：用于实现语音编码的固定代码作为通用模块的方法和装置
公开(公告)号：US20090037169A1
公开(公告)日：2009-02-05
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。

8. 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。

9. 发明授权

US08676569B2 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：US08676569B2
公开(公告)日：2014-03-18
申请号：US13544203
申请日：2012-07-09
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。

10. 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。

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