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1. 发明授权

US08805680B2 Method and apparatus for encoding and decoding audio signal using layered sinusoidal pulse coding 有权
标题翻译：使用分层正弦脉冲编码对音频信号进行编码和解码的方法和装置
公开(公告)号：US08805680B2
公开(公告)日：2014-08-12
申请号：US13321297
申请日：2010-05-19
申请人： Mi-Suk Lee , Heesik Yang , Hyun-Woo Kim , Jongmo Sung , Hyun-Joo Bae , Byung-Sun Lee
发明人： Mi-Suk Lee , Heesik Yang , Hyun-Woo Kim , Jongmo Sung , Hyun-Joo Bae , Byung-Sun Lee
IPC分类号： G10L19/02
CPC分类号： G10L19/02 , G10L19/0212 , G10L19/24
摘要： Provided are a method and an apparatus for encoding and decoding an audio signal. A method for encoding an audio signal includes receiving a transformed audio signal, dividing the transformed audio signal into a plurality of subbands, performing a first sinusoidal pulse coding operation on the subbands, determining a performance region of a second sinusoidal pulse coding operation among the subbands on the basis of coding information of the first sinusoidal pulse coding operation, and performing the second sinusoidal pulse coding operation on the determined performance region, wherein the first sinusoidal pulse coding operation is performed variably according to the coding information. Accordingly, it is possible to further improve the quality of a synthesized signal by considering the sinusoidal pulse coding of a lower layer when encoding or decoding an audio signal in an upper layer by a layered sinusoidal pulse coding scheme.
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。一种对音频信号进行编码的方法包括接收经变换的音频信号，将变换的音频信号分成多个子带，对子带执行第一正弦脉冲编码操作，确定子带中的第二正弦脉冲编码操作的性能区域基于第一正弦脉冲编码操作的编码信息，并对所确定的执行区域执行第二正弦脉冲编码操作，其中根据编码信息可变地执行第一正弦脉冲编码操作。因此，通过考虑在通过分层正弦脉冲编码方案对上层中的音频信号进行编码或解码时下层的正弦脉冲编码，可以进一步提高合成信号的质量。

2. 发明授权

US09111535B2 Method and apparatus for decoding audio signal 有权
标题翻译：用于解码音频信号的方法和装置
公开(公告)号：US09111535B2
公开(公告)日：2015-08-18
申请号：US13011273
申请日：2011-01-21
申请人： Heesik Yang , Mi-Suk Lee , Hyun-Woo Kim , Jongmo Sung , Hyun-Joo Bae , Byung-Sun Lee
发明人： Heesik Yang , Mi-Suk Lee , Hyun-Woo Kim , Jongmo Sung , Hyun-Joo Bae , Byung-Sun Lee
IPC分类号： G10L21/02 , G10L19/093 , G10L19/24
CPC分类号： G10L19/093 , G10L19/24
摘要： Provided are a method and an apparatus for decoding an audio signal. A method for decoding an audio signal encoded by a layered sinusoidal pulse coding scheme using one or more sinusoidal pulses includes decoding the encoded audio signal, setting a smoothing frequency band of the decoded audio signal according to a layer structure of the layered sinusoidal pulse coding scheme, dividing the smoothing frequency band into one or more subbands, and smoothing the decoded audio signal on a subband-by-subband basis. Accordingly, a decoding operation time can be reduced and the quality of a synthesized signal can be improved by variably setting a frequency band to be smoothed, when decoding an audio signal encoded by a layered sinusoidal pulse coding scheme using one or more sinusoidal pulses.
摘要翻译：提供了一种用于对音频信号进行解码的方法和装置。一种使用一个或多个正弦脉冲对由分层正弦脉冲编码方案编码的音频信号进行解码的方法包括解码编码音频信号，根据分层正弦脉冲编码方案的层结构设置解码音频信号的平滑频带将平滑频带划分成一个或多个子带，并且以逐个子带为基础平滑解码的音频信号。因此，当使用一个或多个正弦脉冲对由分层正弦脉冲编码方案编码的音频信号进行解码时，可以通过可变地设置要平滑的频带来改善解码操作时间并且可以提高合成信号的质量。

3. 发明申请

US20120095754A1 METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING LAYERED SINUSOIDAL PULSE CODING 有权
标题翻译：使用层状SINUSOIDAL脉冲编码来编码和解码音频信号的方法和装置
公开(公告)号：US20120095754A1
公开(公告)日：2012-04-19
申请号：US13321297
申请日：2010-05-19
申请人： Mi-Suk Lee , Heesik Yang , Hyun-Woo Kim , Jongmo Sung , Hyun-Joo Bae , Byung-Sun Lee
发明人： Mi-Suk Lee , Heesik Yang , Hyun-Woo Kim , Jongmo Sung , Hyun-Joo Bae , Byung-Sun Lee
IPC分类号： G10L19/02
CPC分类号： G10L19/02 , G10L19/0212 , G10L19/24
摘要： Provided are a method and an apparatus for encoding and decoding an audio signal. A method for encoding an audio signal includes receiving a transformed audio signal, dividing the transformed audio signal into a plurality of subbands, performing a first sinusoidal pulse coding operation on the subbands, determining a performance region of a second sinusoidal pulse coding operation among the subbands on the basis of coding information of the first sinusoidal pulse coding operation, and performing the second sinusoidal pulse coding operation on the determined performance region, wherein the first sinusoidal pulse coding operation is performed variably according to the coding information. Accordingly, it is possible to further improve the quality of a synthesized signal by considering the sinusoidal pulse coding of a lower layer when encoding or decoding an audio signal in an upper layer by a layered sinusoidal pulse coding scheme.
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。一种对音频信号进行编码的方法包括接收经变换的音频信号，将变换的音频信号分成多个子带，对子带执行第一正弦脉冲编码操作，确定子带中的第二正弦脉冲编码操作的性能区域基于第一正弦脉冲编码操作的编码信息，并对所确定的执行区域执行第二正弦脉冲编码操作，其中根据编码信息可变地执行第一正弦脉冲编码操作。因此，通过考虑在通过分层正弦脉冲编码方案对上层中的音频信号进行编码或解码时下层的正弦脉冲编码，可以进一步提高合成信号的质量。

4. 发明申请

US20130030795A1 ENCODING METHOD AND APPARATUS, AND DECODING METHOD AND APPARATUS 有权
标题翻译：编码方法和装置，以及解码方法和装置
公开(公告)号：US20130030795A1
公开(公告)日：2013-01-31
申请号：US13638364
申请日：2011-03-31
申请人： Jongmo Sung , Hyun Woo Kim , Hyun Joo Bae
发明人： Jongmo Sung , Hyun Woo Kim , Hyun Joo Bae
IPC分类号： G10L19/02
CPC分类号： G10L19/0212 , G10L19/0017 , G10L19/032 , G10L19/24
摘要： An encoding method of an encoder is provided. The encoder generates first MDCT coefficients by transforming an input signal, and generates MDCT indices by quantizing the first MDCT coefficients. The encoder generates second MDCT coefficients by dequantizing the MDCT indices, and calculates MDCT residual coefficients using differences between the first MDCT coefficients and the second MDCT coefficients. The encoder generates a residual index by encoding the MDCT residual coefficients, and generates gain indices corresponding to gains from the first MDCT coefficients and the second MDCT coefficients.
摘要翻译：提供了一种编码器的编码方法。编码器通过变换输入信号来生成第一MDCT系数，并通过量化第一MDCT系数来生成MDCT索引。编码器通过对MDCT索引进行去量化生成第二MDCT系数，并且使用第一MDCT系数和第二MDCT系数之间的差异来计算MDCT残差系数。编码器通过对MDCT残差系数进行编码来生成残余索引，并且生成与来自第一MDCT系数和第二MDCT系数的增益对应的增益指数。

5. 发明授权

US09424857B2 Encoding method and apparatus, and decoding method and apparatus 有权
标题翻译：编码方法和装置，以及解码方法和装置
公开(公告)号：US09424857B2
公开(公告)日：2016-08-23
申请号：US13638364
申请日：2011-03-31
申请人： Jongmo Sung , Hyun Woo Kim , Hyun Joo Bae
发明人： Jongmo Sung , Hyun Woo Kim , Hyun Joo Bae
IPC分类号： G10L19/02 , G10L19/00 , G10L19/24 , G10L19/032
CPC分类号： G10L19/0212 , G10L19/0017 , G10L19/032 , G10L19/24
摘要： An encoding method of an encoder is provided. The encoder generates first MDCT coefficients by transforming an input signal, and generates MDCT indices by quantizing the first MDCT coefficients. The encoder generates second MDCT coefficients by dequantizing the MDCT indices, and calculates MDCT residual coefficients using differences between the first MDCT coefficients and the second MDCT coefficients. The encoder generates a residual index by encoding the MDCT residual coefficients, and generates gain indices corresponding to gains from the first MDCT coefficients and the second MDCT coefficients.
摘要翻译：提供了一种编码器的编码方法。编码器通过变换输入信号来生成第一MDCT系数，并通过量化第一MDCT系数来生成MDCT索引。编码器通过对MDCT索引进行去量化生成第二MDCT系数，并且使用第一MDCT系数和第二MDCT系数之间的差异来计算MDCT残差系数。编码器通过对MDCT残差系数进行编码来生成残余索引，并且生成与来自第一MDCT系数和第二MDCT系数的增益对应的增益指数。

6. 发明授权

US07472056B2 Transcoder for speech codecs of different CELP type and method therefor 有权
标题翻译：用于不同CELP类型的语音编解码器的转码器及其方法
公开(公告)号：US07472056B2
公开(公告)日：2008-12-30
申请号：US10749748
申请日：2003-12-30
申请人： Jongmo Sung , Hyun Woo Kim , Do Young Kim , Jin Kyu Choi , Sung Wan Yoon , Hong Goo Kang , Ki Seung Lee , Dae Hee Youn
发明人： Jongmo Sung , Hyun Woo Kim , Do Young Kim , Jin Kyu Choi , Sung Wan Yoon , Hong Goo Kang , Ki Seung Lee , Dae Hee Youn
IPC分类号： G01L19/00 , G01L19/02 , G01L19/12 , G01L19/14
CPC分类号： G10L19/173 , G10L19/12
摘要： A transcoder for use between speech codecs using different Code-Excited Linear Prediction (CELP) type and a method therefor are disclosed. The transcoder includes a decoding unit of an input CELP codec, a transcoding filter, a transcoding filter design unit, and an encoding unit of an output CELP codec. By substituting a post-filter and a perceptual weighting filter of a prior art with one transcoding filter, the calculation amount of the transcoder is reduced, and speech quality decoded at a receiving end is improved.
摘要翻译：公开了使用不同的代码激励线性预测（CELP）类型的语音编解码器及其方法之间使用的代码转换器。代码转换器包括输入CELP编解码器，代码转换滤波器，代码转换滤波器设计单元和输出CELP编解码器的编码单元的解码单元。通过使用一个代码转换滤波器代替现有技术的后置滤波器和感知加权滤波器，降低了代码转换器的计算量，并提高了在接收端解码的语音质量。

7. 发明申请

US20050143979A1 Variable-frame speech coding/decoding apparatus and method 审中-公开
标题翻译：可变帧语音编解码装置及方法
公开(公告)号：US20050143979A1
公开(公告)日：2005-06-30
申请号：US11006447
申请日：2004-12-06
申请人： Mi Lee , Do Kim , Jongmo Sung , Hyun Woo Kim , Hong Kang , Sung Jung , Dae Youn , Hong Kim
发明人： Mi Lee , Do Kim , Jongmo Sung , Hyun Woo Kim , Hong Kang , Sung Jung , Dae Youn , Hong Kim
IPC分类号： G10L19/14 , G10L11/06
CPC分类号： G10L19/24
摘要： There is provided a speech coding/decoding apparatus and method, in which the input speech signals are classified into several classes in accordance with characteristics of the input speech signals and the input speech signals are coded using frame sizes, quantizer structures, and bit assignment methods corresponding to the determined classes, or in which the frame sizes can be adjusted in accordance with network conditions or codec type of a counter part. Therefore, by optimally adjusting the frame size, the quantizer structure, and the bit assignment method in accordance with the characteristics of input speech, it is possible to improve the performance of the speech coding apparatus, and by adjusting the frame size in accordance with the speech codec type of a counter part, it is also possible to reduce the total end-to-end delay.
摘要翻译：提供了一种语音编码/解码装置和方法，其中根据输入的语音信号的特性将输入的语音信号分为几类，并且使用帧大小，量化器结构和比特分配方法对输入的语音信号进行编码对应于所确定的类别，或者可以根据网络条件或计数器部件的编解码器类型来调整帧大小。因此，通过根据输入语音的特性优化调整帧大小，量化器结构和比特分配方法，可以提高语音编码装置的性能，并且可以通过根据语音编解码器类型的计数器部件，也可以减少总的端到端延迟。

8. 发明授权

US08498875B2 Apparatus and method for encoding and decoding enhancement layer 有权
标题翻译：增强层编码和解码的装置和方法
公开(公告)号：US08498875B2
公开(公告)日：2013-07-30
申请号：US12673536
申请日：2008-08-18
申请人： Jongmo Sung , Do-Young Kim
发明人： Jongmo Sung , Do-Young Kim
IPC分类号： G10L21/00
CPC分类号： G10L19/24 , G10L19/002
摘要： Provided is a method and apparatus for encoding and decoding an enhancement layer to reduce quantization error in a G.711 codec. Exponent indices of additional mantissa information of each sample are calculated based upon exponent information of each sample in a frame. A process of allocating 1 bit to each sample with a current exponent index is repeated, the exponent index starting from the maximum value while decreasing by 1 at every repetition until the total number of bits allocated to the samples is equal to the total number of available bits in the frame. And the most significant bits, as many as the number of bits allocated to each sample, are extracted from the additional mantissa information of each sample in the frame.
摘要翻译：提供了一种用于对增强层进行编码和解码以减少G.711编解码器中的量化误差的方法和装置。基于帧中每个样本的指数信息计算每个样本的额外尾数信息的指数索引。重复以当前指数索引为每个样本分配1位的过程，指数指数从最大值开始，同时每次重复减少1，直到分配给样本的总位数等于可用总数帧中的位。并且从帧中的每个样本的附加尾数信息中提取与分配给每个样本的位数一样多的最高有效位。

9. 发明授权

US07596492B2 Apparatus and method for concealing highband error in split-band wideband voice codec and decoding 有权
标题翻译：用于隐藏分频宽带语音编解码器和解码中的高频误差的装置和方法
公开(公告)号：US07596492B2
公开(公告)日：2009-09-29
申请号：US10943118
申请日：2004-09-15
申请人： Jongmo Sung , Do-Young Kim
发明人： Jongmo Sung , Do-Young Kim
IPC分类号： G10L19/12
CPC分类号： G10L19/005 , G10L19/0204 , G10L19/04
摘要： An apparatus for concealing a highband error in a spilt-band wideband voice codec in accordance with the present invention is disclosed. The apparatus includes: a lowband LPC coefficient extracting unit for extracting a lowband linear predictive coding (LPC) coefficient from a lowband voice signal passed by a lowband decoding unit; a highband excitation signal generating unit for generating a highband excitation signal based on the lowband voice signal and the lowband LPC coefficient; a highband LPC coefficient generating unit for generating a highband LPC coefficient based on the lowband LPC coefficient; a highband voice synthesizing unit for synthesizing a highband voice signal based on the highband excitation signal and the highband LPC coefficient; and a high pass filtering unit for removing a lowband component of the synthesized highband voice signal by the highband voice synthesis unit and generating the synthesized highband voice signal.
摘要翻译：公开了一种用于隐藏根据本发明的溢出带宽带语音编解码器中的高频误差的装置。该装置包括：低频LPC系数提取单元，用于从低频解码单元通过的低频语音信号中提取低频带线性预测编码（LPC）系数; 高频激励信号发生单元，用于基于低频带语音信号和低频带LPC系数产生高频激励信号; 高频LPC系数产生单元，用于基于低频带LPC系数产生高频LPC系数; 高频语音合成单元，用于根据高频激励信号和高频LPC系数合成高频语音信号; 以及高通滤波单元，用于通过高频语音合成单元去除合成高频语音信号的低频分量，并产生合成的高频语音信号。

10. 发明申请

US20110106532A1 APPARATUS AND METHOD FOR ENCODING AND DECODING ENHANCEMENT LAYER 有权
标题翻译：编码和解码增强层的装置和方法
公开(公告)号：US20110106532A1
公开(公告)日：2011-05-05
申请号：US12673536
申请日：2008-08-18
申请人： Jongmo Sung , Do-Young Kim
发明人： Jongmo Sung , Do-Young Kim
IPC分类号： G10L19/02
CPC分类号： G10L19/24 , G10L19/002
摘要： Provided is a method and apparatus for encoding and decoding an enhancement layer to reduce quantization error in a G.711 codec. Exponent indices of additional mantissa information of each sample are calculated based upon exponent information of each sample in a frame. A process of allocating 1 bit to each sample with a current exponent index is repeated, the exponent index starting from the maximum value while decreasing by 1 at every repetition until the total number of bits allocated to the samples is equal to the total number of available bits in the frame. And the most significant bits, as many as the number of bits allocated to each sample, are extracted from the additional mantissa information of each sample in the frame.
摘要翻译：提供了一种用于对增强层进行编码和解码以减少G.711编解码器中的量化误差的方法和装置。基于帧中每个样本的指数信息计算每个样本的额外尾数信息的指数索引。重复以当前指数索引为每个样本分配1位的过程，指数指数从最大值开始，同时每次重复减少1，直到分配给样本的总位数等于可用总数帧中的位。并且从帧中的每个样本的附加尾数信息中提取与分配给每个样本的位数一样多的最高有效位。

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