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21. 发明授权

US08751225B2 Apparatus and method for coding signal in a communication system 有权
标题翻译：在通信系统中编码信号的装置和方法
公开(公告)号：US08751225B2
公开(公告)日：2014-06-10
申请号：US13106649
申请日：2011-05-12
申请人： Mi-Suk Lee , Hong-Kook Kim , Young-Han Lee
发明人： Mi-Suk Lee , Hong-Kook Kim , Young-Han Lee
IPC分类号： G10L19/00
CPC分类号： G10L19/24 , G10L19/0208 , G10L19/0212 , G10L21/038
摘要： Provided is an apparatus and method for encoding a voice and audio signal by expanding a modified discrete cosine transform (MDCT) based CODEC to a wideband and a super-wideband in a communication system. The apparatus for encoding a signal in a communication system, includes a converter configured to convert a time domain signal corresponding to a service to be provided to users to a frequency domain signal, a quantization and normalization unit configured to calculate and quantize gain of each subband in the converted frequency domain signal and normalize a frequency coefficient of the each subband, a search unit configured to search patch information of each subband in the converted frequency domain signal using the normalized frequency coefficient, and a packetizer configured to packetize the quantized gain and the searched patch information and encode gain information of each subband in the frequency domain signal.
摘要翻译：提供了一种通过在通信系统中扩展基于修改的离散余弦变换（MDCT）的CODEC到宽带和超宽带来对语音和音频信号进行编码的装置和方法。用于对通信系统中的信号进行编码的装置包括转换器，被配置为将与要提供给用户的服务相对应的时域信号转换为频域信号，量化和归一化单元，被配置为计算和量化每个子带的增益在转换的频域信号中对归一化每个子带的频率系数，搜索单元，被配置为使用归一化的频率系数来搜索经转换的频域信号中的每个子带的贴片信息，以及分组器，被配置为将量化的增益和搜索补丁信息，并对频域信号中的每个子带的增益信息进行编码。

22. 发明申请

US20110301961A1 METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING ADAPTIVE SINUSOIDAL CODING 有权
标题翻译：使用自适应SINUSOIDAL编码编码和解码音频信号的方法和装置
公开(公告)号：US20110301961A1
公开(公告)日：2011-12-08
申请号：US13201517
申请日：2010-02-16
申请人： Mi-Suk Lee , Hyun-Joo Bae , Byung-Sun Lee
发明人： Mi-Suk Lee , Hyun-Joo Bae , Byung-Sun Lee
IPC分类号： G10L21/00
CPC分类号： G10L19/008 , G10L19/0204 , G10L19/093 , G10L19/24
摘要： A method and an apparatus for encoding and decoding audio signals using adaptive sinusoidal coding are provided. The audio signal encoding method includes the steps of dividing a synthesized audio signal into a plurality of sub-bands, calculating the energy of each sub-band, selecting a predetermined number of sub-bands having a relatively large amount of energy from the sub-bands, and performing sinusoidal coding with regard to the selected sub-bands. Application of sinusoidal coding based on consideration of the amount of energy of each sub-band of the synthesized signal improves the quality of the synthesized signal more efficiently.
摘要翻译：提供了一种使用自适应正弦编码对音频信号进行编码和解码的方法和装置。音频信号编码方法包括以下步骤：将合成的音频信号分成多个子带，计算每个子带的能量，从子帧中选择具有相对大量能量的预定数量的子带，并且对于所选择的子带执行正弦编码。基于考虑合成信号的每个子带的能量量的正弦编码的应用更有效地提高了合成信号的质量。

23. 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。

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