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1. 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。

2. 发明申请

US20120294447A1 APPARATUS AND METHOD FOR ENCODING/DECODING MULTICHANNEL SIGNAL 有权
标题翻译：编码/解码多通道信号的装置和方法
公开(公告)号：US20120294447A1
公开(公告)日：2012-11-22
申请号：US13483954
申请日：2012-05-30
申请人： Jung Hoe KIM , Eunmi OH , Mi Young KIM , Ki Hyun CHOO
发明人： Jung Hoe KIM , Eunmi OH , Mi Young KIM , Ki Hyun CHOO
IPC分类号： H04R5/00
CPC分类号： G10L19/008
摘要： An apparatus and method for encoding/decoding a multi-channel signal may be provided. The apparatus of encoding a multi-channel signal may insert information about whether to encode a phase parameter indicating phase information of a plurality of channels, included in the multi-channel signal, in a bitstream of the multi-channel signal. The apparatus of decoding a multi-channel signal may determine whether to up-mix a mono signal using the phase parameter based on the information about whether to encode.
摘要翻译：可以提供用于对多信道信号进行编码/解码的装置和方法。编码多声道信号的装置可以在多声道信号的比特流中插入关于是否编码指示包括在多声道信号中的多个声道的相位信息的相位参数的信息。解码多声道信号的装置可以基于关于是否编码的信息，使用相位参数来确定是否对单声道信号进行混合。

3. 发明申请

US20110293099A1 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：US20110293099A1
公开(公告)日：2011-12-01
申请号：US13137292
申请日：2011-08-03
申请人： Junghee Kim , Mino Lei , Eunmi Oh
发明人： Junghee Kim , Mino Lei , Eunmi Oh
IPC分类号： H04R5/00
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，媒体和方法，包括解码电平生成单元，其产生解码级信息，该解码电平信息有助于将包含多个音频信道信号的位流和空间信息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。

4. 发明授权

US07330139B2 Scalable audio data arithmetic decoding method, medium, and apparatus, and method, medium, and apparatus truncating audio data bitstream 有权
公开(公告)号：US07330139B2
公开(公告)日：2008-02-12
申请号：US11330168
申请日：2006-01-12
申请人： Junghoe Kim , Eunmi Oh , Changyong Son , Kihyun Choo
发明人： Junghoe Kim , Eunmi Oh , Changyong Son , Kihyun Choo
IPC分类号： H03M7/00
CPC分类号： G10L19/0017 , G10L19/24 , G10L21/038
摘要： A scalable audio data arithmetic decoding method, medium, and apparatus, and a method, medium, and apparatus truncating an audio data bitstream. The arithmetic decoding method of decoding a scalable arithmetic coded symbol may include arithmetic decoding of a symbol by using the symbol and a probability value for the symbol desired to be decoded, and determining whether or not to continue decoding by checking an ambiguity indicating whether or not decoding of the symbol to be decoded is completed. According to a method, medium, and apparatus of the present invention, data to which scalability is applied when arithmetic coding is performed in MPEG-4 scalable lossless audio coding can be efficiently decoded. Even when a bitstream is truncated, a decoding termination point can be known such that additional decoding of the truncated part can be performed.

5. 发明申请

US20070291835A1 Encoder and decoder to encode signal into a scable codec and to decode scalable codec, and encoding and decoding methods of encoding signal into scable codec and decoding the scalable codec 有权
标题翻译：编码器和解码器将信号编码成可编解码器并解码可扩展编解码器，并将编码信号的编码和解码方法转换成可编解码器并解码可扩展编解码器
公开(公告)号：US20070291835A1
公开(公告)日：2007-12-20
申请号：US11709254
申请日：2007-02-22
申请人： Hosang Sung , Eunmi Oh , Junghoe Kim , Kangeun Lee
发明人： Hosang Sung , Eunmi Oh , Junghoe Kim , Kangeun Lee
IPC分类号： H04B1/66 , G11B11/00
CPC分类号： G10L19/12 , G10L19/24 , H04N19/115 , H04N19/164 , H04N19/187 , H04N19/30 , H04N21/234327 , H04N21/2402 , H04N21/2662 , H04N21/6437
摘要： An encoder and decoder to encode one or more input signals into a scalable codec and to decode the scalable codec, and encoding and decoding methods using a bitstream with a layered structure in the scalable codec change a top coding bit rate to encode the input signals according to a network status, and the bitstream is decoded by analyzing the top coding bit rate included in the bitstream.
摘要翻译：编码器和解码器将一个或多个输入信号编码成可扩展编解码器并对可伸缩编解码器进行解码，以及使用具有可分级编解码器中的分层结构的比特流进行编码和解码方法，改变顶编码比特率以对输入信号进行编码通过分析比特流中包括的顶部编码比特率来解码比特流。

6. 发明申请

US20070233296A1 Method, medium, and apparatus with scalable channel decoding 有权
标题翻译：方法，媒介和具有可扩展信道解码的装置
公开(公告)号：US20070233296A1
公开(公告)日：2007-10-04
申请号：US11652031
申请日：2007-01-11
申请人： Junghoe Kim , Eunmi Oh , Kihyun Choo , Mino Lei
发明人： Junghoe Kim , Eunmi Oh , Kihyun Choo , Mino Lei
IPC分类号： G06F17/00
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 number of 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 number of decoding levels.
摘要翻译：具有可扩展信道解码的方法，介质和装置。该方法包括识别通道或扬声器的配置，使用识别的通道或扬声器的配置来计算每个多声道信号的解码电平的数量，以及根据所计算的解码电平的数量进行解码和上混合。

7. 发明申请

US20070223749A1 Method, medium, and system synthesizing a stereo signal 有权
标题翻译：方法，媒体和系统合成立体声信号
公开(公告)号：US20070223749A1
公开(公告)日：2007-09-27
申请号：US11707990
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： H04R5/02 , H04R5/00
CPC分类号： H04R5/02 , G10L19/008 , H04R5/033 , H04S1/002 , H04S3/00 , H04S3/002 , H04S3/02 , H04S2420/01 , H04S2420/07
摘要： A method, medium, and system generating a 3-dimensional (3D) stereo signal in a decoder by using a surround data stream. According to such a method, medium, and system, a head related transfer function (HRTF) is applied in a quadrature mirror filter (QMF) domain, thereby generating a 3D stereo signal by using a surround data stream.
摘要翻译：一种通过使用环绕数据流在解码器中产生三维（3D）立体声信号的方法，介质和系统。根据这种方法，将介质和系统的头部相关传递函数（HRTF）应用于正交镜像滤波器（QMF）域中，从而通过使用环绕数据流生成3D立体声信号。

8. 发明授权

US09094662B2 Encoder and decoder to encode signal into a scalable codec and to decode scalable codec, and encoding and decoding methods of encoding signal into scalable codec and decoding the scalable codec 有权
标题翻译：编码器和解码器将信号编码成可扩展编解码器并解码可扩展编解码器，并将编码信号的编码和解码方法转换为可扩展编解码器并对可扩展编解码器进行解码
公开(公告)号：US09094662B2
公开(公告)日：2015-07-28
申请号：US11709254
申请日：2007-02-22
申请人： Hosang Sung , Eunmi Oh , Junghoe Kim , Kangeun Lee
发明人： Hosang Sung , Eunmi Oh , Junghoe Kim , Kangeun Lee
IPC分类号： G10L19/02 , H04N19/164 , G10L19/24 , H04N21/2343 , H04N21/24 , H04N21/2662 , H04N21/6437 , H04N19/30 , H04N19/115 , H04N19/187
CPC分类号： G10L19/12 , G10L19/24 , H04N19/115 , H04N19/164 , H04N19/187 , H04N19/30 , H04N21/234327 , H04N21/2402 , H04N21/2662 , H04N21/6437
摘要： An encoder and decoder to encode one or more input signals into a scalable codec and to decode the scalable codec, and encoding and decoding methods using a bitstream with a layered structure in the scalable codec change a top coding bit rate to encode the input signals according to a network status, and the bitstream is decoded by analyzing the top coding bit rate included in the bitstream.
摘要翻译：编码器和解码器将一个或多个输入信号编码成可扩展编解码器并对可伸缩编解码器进行解码，以及使用具有可分级编解码器中的分层结构的比特流进行编码和解码方法，改变顶编码比特率以对输入信号进行编码通过分析比特流中包括的顶部编码比特率来解码比特流。

9. 发明授权

US08620011B2 Method, medium, and system synthesizing a stereo signal 有权
标题翻译：方法，媒体和系统合成立体声信号
公开(公告)号：US08620011B2
公开(公告)日：2013-12-31
申请号：US11707990
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： H04R5/02
CPC分类号： H04R5/02 , G10L19/008 , H04R5/033 , H04S1/002 , H04S3/00 , H04S3/002 , H04S3/02 , H04S2420/01 , H04S2420/07
摘要： A method, medium, and system generating a 3-dimensional (3D) stereo signal in a decoder by using a surround data stream. According to such a method, medium, and system, a head related transfer function (HRTF) is applied in a quadrature mirror filter (QMF) domain, thereby generating a 3D stereo signal by using a surround data stream.
摘要翻译：一种通过使用环绕数据流在解码器中产生三维（3D）立体声信号的方法，介质和系统。根据这种方法，将介质和系统的头部相关传递函数（HRTF）应用于正交镜像滤波器（QMF）域中，从而通过使用环绕数据流生成3D立体声信号。

10. 发明授权

US08615391B2 Method and apparatus to extract important spectral component from audio signal and low bit-rate audio signal coding and/or decoding method and apparatus using the same 失效
标题翻译：从音频信号和低比特率音频信号编码和/或解码方法和装置中提取重要频谱分量的方法和装置
公开(公告)号：US08615391B2
公开(公告)日：2013-12-24
申请号：US11480897
申请日：2006-07-06
申请人： Junghoe Kim , Eunmi Oh , Konstantin Osipov , Boris Kudryashov
发明人： Junghoe Kim , Eunmi Oh , Konstantin Osipov , Boris Kudryashov
IPC分类号： G10L19/00
CPC分类号： G10L19/035 , G10L19/0017 , G10L19/02 , G10L19/0204 , G10L19/0212
摘要： An method and apparatus to extract an audio signal having an important spectral component (ISC) and a low bit-rate audio signal coding/decoding method using the method and apparatus to extract the ISC. The method of extracting the ISC includes calculating perceptual importance including an SMR (signal-to-mask ratio) value of transformed spectral audio signals by using a psychoacoustic model, selecting spectral signals having a masking threshold value smaller than that of the spectral audio signals using the SMR value as first ISCs, and extracting a spectral peak from the audio signals selected as the ISCs according to a predetermined weighting factor to select second ISCs. Accordingly, the perceptual important spectral components can be efficiently coded so as to obtain high sound quality at a low bit-rate. In addition, it is possible to extract the perceptual important spectral component by using the psychoacoustic model, to perform coding without phase information, and to efficiently represent a spectral signal at a low bit-rate. In addition, the methods and apparatus can be employed in all the applications requiring a low bit-rate audio coding scheme and in a next generation audio scheme.
摘要翻译：一种提取具有重要频谱分量（ISC）的音频信号和使用该方法和装置提取ISC的低比特率音频信号编码/解码方法的方法和装置。提取ISC的方法包括通过使用心理声学模型来计算感知重要性，包括变换的频谱音频信号的SMR（信号到掩模比）值，选择具有比频谱音频信号的屏蔽阈值小的光谱信号，该频谱信号使用 SMR值作为第一ISC，并且根据预定加权因子从被选择为ISC的音频信号中提取频谱峰值以选择第二ISC。因此，感知重要的频谱分量可以被有效地编码，以便以低比特率获得高音质。此外，可以通过使用心理声学模型来提取感知重要的频谱分量，以执行没有相位信息的编码，并且以低比特率有效地表示频谱信号。此外，该方法和装置可以用于需要低比特率音频编码方案和下一代音频方案的所有应用中。

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