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1. 发明授权

US07864843B2 Method and apparatus to encode and/or decode signal using bandwidth extension technology 有权
标题翻译：使用带宽扩展技术对信号进行编码和/或解码的方法和装置
公开(公告)号：US07864843B2
公开(公告)日：2011-01-04
申请号：US11757528
申请日：2007-06-04
申请人： Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh , Miao Lei , Chang-yong Son
发明人： Ki-hyun Choo , Jung-hoe Kim , Eun-mi Oh , Miao Lei , Chang-yong Son
IPC分类号： H04N11/02 , G10L13/00
CPC分类号： G10L19/0208 , G10L21/038
摘要： A method and apparatus to perform bandwidth extension encoding and decoding encodes and/or decodes a high frequency signal using an excitation signal for a low frequency signal encoded in a time domain or a frequency domain or using an excitation spectrum for the low frequency signal. Accordingly, although an audio signal is encoded or decoded using a small number of bits, the quality of sound corresponding to a signal in a high frequency band does not degrade. Therefore, a coding efficiency of the audio signal can be maximized.
摘要翻译：执行带宽扩展编码和解码的方法和装置使用用于在时域或频域中编码的低频信号的激励信号或者使用低频信号的激励频谱对高频信号进行编码和/或解码。因此，尽管使用少量的比特对音频信号进行编码或解码，但是与高频带中的信号相对应的声音质量不会降低。因此，可以使音频信号的编码效率最大化。

2. 发明申请

US20080120117A1 Method, medium, and apparatus with bandwidth extension encoding and/or decoding 有权
标题翻译：具有带宽扩展编码和/或解码的方法，介质和装置
公开(公告)号：US20080120117A1
公开(公告)日：2008-05-22
申请号：US11980643
申请日：2007-10-31
申请人： Ki-hyun Choo , Eun-mi Oh , Miao Lei
发明人： Ki-hyun Choo , Eun-mi Oh , Miao Lei
IPC分类号： G10L19/00
CPC分类号： G10L21/038
摘要： A method, medium, and apparatus encoding and/or decoding audio signals. By encoding and/or decoding a high-frequency signal using an excitation signal extracted from a low-frequency signal, coding efficiency can be maximized because sound quality of a signal corresponding to a high-frequency region does not deteriorate when audio signals are encoded or decoded using a low bit amounts or rates.
摘要翻译：编码和/或解码音频信号的方法，介质和装置。通过使用从低频信号提取的激励信号对高频信号进行编码和/或解码，可以最大化编码效率，因为当音频信号被编码时，对应于高频区域的信号的声音质量不会劣化，或者使用低位数或速率进行解码。

3. 发明授权

US08639500B2 Method, medium, and apparatus with bandwidth extension encoding and/or decoding 有权
标题翻译：具有带宽扩展编码和/或解码的方法，介质和装置
公开(公告)号：US08639500B2
公开(公告)日：2014-01-28
申请号：US11980643
申请日：2007-10-31
申请人： Ki-hyun Choo , Eun-mi Oh , Miao Lei
发明人： Ki-hyun Choo , Eun-mi Oh , Miao Lei
IPC分类号： G10L19/00
CPC分类号： G10L21/038
摘要： A method, medium, and apparatus encoding and/or decoding audio signals. By encoding and/or decoding a high-frequency signal using an excitation signal extracted from a low-frequency signal, coding efficiency can be maximized because sound quality of a signal corresponding to a high-frequency region does not deteriorate when audio signals are encoded or decoded using a low bit amounts or rates.
摘要翻译：编码和/或解码音频信号的方法，介质和装置。通过使用从低频信号提取的激励信号对高频信号进行编码和/或解码，可以最大化编码效率，因为当音频信号被编码时，对应于高频区域的信号的声音质量不会劣化，或者使用低位数或速率进行解码。

4. 发明申请

US20080071550A1 METHOD AND APPARATUS TO ENCODE AND DECODE AUDIO SIGNAL BY USING BANDWIDTH EXTENSION TECHNIQUE 审中-公开
标题翻译：使用带宽扩展技术来编码和解码音频信号的方法和设备
公开(公告)号：US20080071550A1
公开(公告)日：2008-03-20
申请号：US11856221
申请日：2007-09-17
申请人： Eun-mi OH , Ki-hyun Choo , Miao Lei
发明人： Eun-mi OH , Ki-hyun Choo , Miao Lei
IPC分类号： G10L19/00
CPC分类号： G10L19/24
摘要： Provided are a method and apparatus to encode and decode an audio signal. According to the present invention, by splitting an input signal into a low band signal and a high band signal, converting each of the low band signal and the high band signal from the time domain to the frequency domain, performing quantization and context-dependant bitplane encoding on the converted low band signal, generating and encoding bandwidth extension information that represents a characteristic of the converted high band signal, and outputting the encoded bitplane and the encoded bandwidth extension information as an encoded result of the input signal, high frequency components may be efficiently encoded at a restricted bit rate, thereby improving the quality of an audio signal.
摘要翻译：提供了一种对音频信号进行编码和解码的方法和装置。根据本发明，通过将输入信号分成低频带信号和高频带信号，将低频带信号和高频带信号从时域转换到频域，执行量化和上下文相关的位平面对转换的低频带信号进行编码，生成和编码表示转换的高频带信号的特性的带宽扩展信息，并输出编码的位平面和编码的带宽扩展信息作为输入信号的编码结果，高频分量可以是以有限的比特率有效地编码，从而提高音频信号的质量。

5. 发明授权

US08224658B2 Method, medium, and apparatus encoding and/or decoding an audio signal 有权
标题翻译：对音频信号进行编码和/或解码的方法，介质和装置
公开(公告)号：US08224658B2
公开(公告)日：2012-07-17
申请号：US11634251
申请日：2006-12-06
申请人： Miao Lei , Eun-mi Oh , Jung-hoe Kim
发明人： Miao Lei , Eun-mi Oh , Jung-hoe Kim
IPC分类号： G10L19/00
CPC分类号： G10L19/0017 , G10L19/032 , G10L19/24
摘要： A method, medium, and apparatus encoding and/or decoding an audio signal. The method of encoding an audio signal includes transforming an input audio signal into an audio signal in a frequency domain, quantizing the frequency-domain transformed audio signal, and performing bitplane coding on the quantized audio signal using a context that represents various available symbols of an upper bitplane.
摘要翻译：编码和/或解码音频信号的方法，介质和装置。编码音频信号的方法包括将输入音频信号变换成频域中的音频信号，量化频域变换的音频信号，以及使用表示各种可用符号的上下文对量化的音频信号进行位平面编码上位面

6. 发明申请

US20070127580A1 Method, medium, and apparatus encoding and/or decoding an audio signal 有权
标题翻译：对音频信号进行编码和/或解码的方法，介质和装置
公开(公告)号：US20070127580A1
公开(公告)日：2007-06-07
申请号：US11634251
申请日：2006-12-06
申请人： Miao Lei , Eun-mi Oh , Jung-hoe Kim
发明人： Miao Lei , Eun-mi Oh , Jung-hoe Kim
IPC分类号： H04B14/04
CPC分类号： G10L19/0017 , G10L19/032 , G10L19/24
摘要： A method, medium, and apparatus encoding and/or decoding an audio signal. The method of encoding an audio signal includes transforming an input audio signal into an audio signal in a frequency domain, quantizing the frequency-domain transformed audio signal, and performing bitplane coding on the quantized audio signal using a context that represents various available symbols of an upper bitplane.
摘要翻译：编码和/或解码音频信号的方法，介质和装置。编码音频信号的方法包括将输入音频信号变换成频域中的音频信号，量化频域变换的音频信号，以及使用表示各种可用符号的上下文对量化的音频信号进行位平面编码上位面

7. 发明授权

US09934789B2 Method, medium, and apparatus with scalable channel decoding 有权
公开(公告)号：US09934789B2
公开(公告)日：2018-04-03
申请号：US11652031
申请日：2007-01-11
申请人： Junghoe Kim , Eunmi Oh , Kihyun Choo , Miao Lei
发明人： Junghoe Kim , Eunmi Oh , Kihyun Choo , Miao Lei
IPC分类号： H04R5/00 , G10L19/24 , G10L19/008
CPC分类号： G10L19/24 , G10L19/008
摘要： A method, medium, and apparatus with scalable channel decoding. The method includes recognizing the configuration of channels or speakers, calculating the respective number of same path decoding levels for each multi-channel signal using the recognized configuration of the channels or speakers, and performing decoding and up-mixing according to the calculated respective number of decoding levels.

8. 发明授权

US09100039B2 System, medium, and method of encoding/decoding multi-channel audio signals 有权
标题翻译：多声道音频信号编码/解码的系统，媒介和方法
公开(公告)号：US09100039B2
公开(公告)日：2015-08-04
申请号：US13599147
申请日：2012-08-30
申请人： Junghoe Kim , Miao Lei , Eunmi Oh
发明人： Junghoe Kim , Miao Lei , Eunmi Oh
IPC分类号： H04R5/00 , H03M7/30 , G10L19/008 , H04S3/00
CPC分类号： H03M7/30 , G10L19/008 , G10L19/167 , H04H20/80 , H04S3/002 , H04S3/008 , H04S2420/03
摘要： An system, method, and method of encoding/decoding a multi-channel audio signal, including a decoding level generation unit producing decoding-level information that helps a bitstream including a number of audio channel signals and space information to be decoded into a number of audio channel signals, wherein the space information includes information about magnitude differences and/or similarities between channels, and an audio decoder decoding the bitstream according to the decoding-level information. Accordingly, even a single input bitstream can be decoded into a suitable number of channels depending on the type of a speaker configuration used. Scalable channel decoding can be achieved by partially decoding an input bitstream. In the scalable channel decoding, a decoder may set decoding levels and outputs audio channel signals according to the decoding levels, thereby reducing decoding complexity.
摘要翻译：一种对多声道音频信号进行编码/解码的系统，方法和方法，包括解码级产生单元，其产生解码级信息，该解码级信息有助于将包含多个音频信道信号和空间信息的比特流解码为多个音频信道信号，其中所述空间信息包括关于信道之间的幅度差异和/或相似性的信息，以及根据所述解码级别信息对所述比特流进行解码的音频解码器。因此，即使单个输入比特流也可以根据所使用的扬声器配置的类型被解码为适当数量的信道。可以通过对输入比特流进行部分解码来实现可扩展的信道解码。在可扩展信道解码中，解码器可以根据解码电平设置解码电平并输出音频信道信号，从而降低解码复杂度。

9. 发明授权

US09087511B2 Method, medium, and system for generating a stereo signal 有权
标题翻译：用于产生立体声信号的方法，媒体和系统
公开(公告)号：US09087511B2
公开(公告)日：2015-07-21
申请号：US11707989
申请日：2007-02-20
申请人： Junghoe Kim , Eunmi Oh , Kihyun Choo , Miao Lei
发明人： Junghoe Kim , Eunmi Oh , Kihyun Choo , Miao Lei
IPC分类号： H04R5/00 , G10L19/008 , H04S1/00 , H04S3/00 , H04S7/00
CPC分类号： H04N13/161 , G10L19/008 , H04S1/007 , H04S3/008 , H04S7/308 , H04S2420/03
摘要： Surround audio decoding for selectively generating an audio signal from a multi-channel signal. In the surround audio decoding, a down-mixed signal, e.g., as down-mixed by an encoding terminal, is selectively up-mixed to a stereo signal or a multi-channel signal, by generating spatial information for generating the stereo signal, using spatial information for up-mixing the down-mixed signal to the multi-channel signal.
摘要翻译：环绕音频解码，用于从多声道信号选择性地产生音频信号。在环绕音频解码中，通过生成用于产生立体声信号的空间信息，例如通过编码终端下混合的下混合信号被选择性地上混为立体声信号或多声道信号，使用用于将下混合信号上混合到多声道信号的空间信息。

10. 发明授权

US07869891B2 Method and apparatus for generating bitstream of audio signal and audio encoding/decoding method and apparatus thereof 失效
标题翻译：用于产生音频信号和音频编码/解码方法的比特流的方法和装置及其装置
公开(公告)号：US07869891B2
公开(公告)日：2011-01-11
申请号：US11445312
申请日：2006-06-02
申请人： Sanwook Kim , Dohyung Kim , Miyoung Kim , Miao Lei , Shihwa Lee , Jianxian Yan
发明人： Sanwook Kim , Dohyung Kim , Miyoung Kim , Miao Lei , Shihwa Lee , Jianxian Yan
IPC分类号： G06F17/00
CPC分类号： G10L19/167 , G10L19/008
摘要： A method and apparatus for generating a bitstream of an audio signal, in which an audio signal can be easily extended to a multichannel audio signal, the processing speed of an audio signal can be improved, and channel signals of an audio signal can be processed simultaneously, and an audio encoding/decoding method and apparatus using the method and apparatus. The method for generating a bitstream of an audio signal using an encoded audio signal and encoding information includes generating a flag indicating whether the encoded audio signal is a multichannel audio signal, generating a bitstream header including the generated flag, and generating the bitstream using the generated bitstream header and the encoded audio signal.
摘要翻译：一种用于生成音频信号的比特流的方法和装置，其中音频信号可以容易地扩展到多声道音频信号，可以提高音频信号的处理速度，并且可以同时处理音频信号的信道信号以及使用该方法和装置的音频编码/解码方法和装置。使用编码音频信号和编码信息生成音频信号的比特流的方法包括：生成指示编码音频信号是多声道音频信号的标志，生成包括所生成的标志的比特流头部，以及使用生成的比特流报头和编码音频信号。

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