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21.发明授权公开(公告)号：US11580999B2
公开(公告)日：2023-02-14
申请号：US17331416
申请日：2021-05-26
Inventor： Seung Kwon Beack , Jongmo Sung , Mi Suk Lee , Tae Jin Lee , Woo-taek Lim , Inseon Jang
IPC: G10L19/022 , G10L19/06 , G10L19/16 , G10L19/035
Abstract: An audio signal encoding method performed by an encoder includes identifying an audio signal of a time domain in units of a block, generating a combined block by combining i) a current original block of the audio signal and ii) a previous original block chronologically adjacent to the current original block, extracting a first residual signal of a frequency domain from the combined block using linear predictive coding of a time domain, overlapping chronologically adjacent first residual signals among first residual signals converted into a time domain, and quantizing a second residual signal of a time domain extracted from the overlapped first residual signal by converting the second residual signal of the time domain into a frequency domain using linear predictive coding of a frequency domain.
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公开(公告)号：US11545163B2
公开(公告)日：2023-01-03
申请号：US16729112
申请日：2019-12-27
Inventor： Seung Kwon Beack , Woo-taek Lim , Tae Jin Lee
IPC: G10L19/032 , G10L25/30
Abstract: A loss function of a signal including an audio signal is determined. A loss function determining system for an audio signal is provided. A loss function is determined by: determining a reference quantization index by quantizing an original input signal; inputting the original input signal to a neural network classifier and applying an activation function to an output layer of the neural network classifier; and determining a total loss function for the neural network classifier using an output of the activation function and the reference quantization index.
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公开(公告)号：US11430457B2
公开(公告)日：2022-08-30
申请号：US16846272
申请日：2020-04-10
Inventor： Seung Kwon Beack , Tae Jin Lee , Min Je Kim , Kyeongok Kang , Dae Young Jang , Jin Woo Hong , Jeongil Seo , Chieteuk Ahn , Hochong Park , Young-Cheol Park
IPC: G10L19/087 , G10L19/22 , G10L19/125 , G10L19/26
Abstract: Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).
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公开(公告)号：US11328734B2
公开(公告)日：2022-05-10
申请号：US16735522
申请日：2020-01-06
Inventor： Seung Kwon Beack , Jeong Il Seo , Jong Mo Sung , Tae Jin Lee , Jin Soo Choi
IPC: G10L19/008 , G10L19/24 , H04S3/00
Abstract: An encoding method for a multi-channel audio signal, an encoding apparatus for performing the encoding method, and a decoding method for a multi-channel audio signal and a decoding apparatus for performing the decoding method are disclosed. A method and apparatus of bypassing an MPEG Surround (MPS) standard operation and using an arbitrary tree when a number of audio signals of N channels exceeds a channel number defined in an MPS standard, is disclosed.
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公开(公告)号：US10783892B2
公开(公告)日：2020-09-22
申请号：US16404334
申请日：2019-05-06
Inventor： Seung Kwon Beack , Tae Jin Lee , Jong Mo Sung , Kyeong Ok Kang , Keun Woo Choi
IPC: G10L19/00 , G10L19/008 , G10L19/02 , G10L19/002 , G10L19/22
Abstract: An audio encoding apparatus to encode an audio signal using lossless coding or lossy coding and an audio decoding apparatus to decode an encoded audio signal are disclosed. An audio encoding apparatus according to an exemplary embodiment may include an input signal type determination unit to determine a type of an input signal based on characteristics of the input signal, a residual signal generation unit to generate a residual signal based on an output signal from the input signal type determination unit, and a coding unit to perform lossless coding or lossy coding using the residual signal.
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Patent Agency Ranking
26.发明授权公开(公告)号：US10575111B2
公开(公告)日：2020-02-25
申请号：US16354890
申请日：2019-03-15
Inventor： Seung Kwon Beack , Tae Jin Lee , Jong Mo Sung , Kyeong Ok Kang , Jeong Il Seo , Dae Young Jang , Yong Ju Lee , Jin Woong Kim
IPC: H04S3/00 , G10L19/008
Abstract: An audio encoding apparatus and method that encodes hybrid contents including an object sound, a background sound, and metadata, and an audio decoding apparatus and method that decodes the encoded hybrid contents are provided. The audio encoding apparatus may include a mixing unit to generate an intermediate channel signal by mixing a background sound and an object sound, a matrix information encoding unit to encode matrix information used for the mixing, an audio encoding unit to encode the intermediate channel signal, and a metadata encoding unit to encode metadata including control information of the object sound.
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公开(公告)号：US10332532B2
公开(公告)日：2019-06-25
申请号：US16011249
申请日：2018-06-18
Inventor： Jeong Il Seo , Seung Kwon Beack , Dae Young Jang , Kyeong Ok Kang , Tae Jin Park , Yong Ju Lee , Keun Woo Choi , Jin Woong Kim
IPC: G10L19/008 , H04S3/00
Abstract: An encoding/decoding apparatus and method for controlling a channel signal is disclosed, wherein the encoding apparatus may include an encoder to encode an object signal, a channel signal, and rendering information for the channel signal, and a bit stream generator to generate, as a bit stream, the encoded object signal, the encoded channel signal, and the encoded rendering information for the channel signal.
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公开(公告)号：US10102863B2
公开(公告)日：2018-10-16
申请号：US15620119
申请日：2017-06-12
Inventor： Seung Kwon Beack , Tae Jin Lee , Jong Mo Sung , Jeong Il Seo , Kyeong Ok Kang , Dae Young Jang , Jin Woong Kim
IPC: H04S3/00 , G10L19/008
Abstract: An encoder and an encoding method for a multi-channel signal, and a decoder and a decoding method for a multi-channel signal are disclosed. A multi-channel signal may be efficiently processed by consecutive downmixing or upmixing.
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公开(公告)号：US09679571B2
公开(公告)日：2017-06-13
申请号：US14783767
申请日：2014-04-10
Inventor： Seung Kwon Beack , Tae Jin Lee , Jong Mo Sung , Jeong Il Seo , Kyeong Ok Kang , Dae Young Jang , Jin Woong Kim
IPC: G10L19/02 , G10L19/008 , H04S3/00
CPC classification number: G10L19/008 , H04S3/008 , H04S2400/03
Abstract: An encoder and an encoding method for a multi-channel signal, and a decoder and a decoding method for a multi-channel signal are disclosed. A multi-channel signal may be efficiently processed by consecutive downmixing or upmixing.
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30.发明授权公开(公告)号：US09319819B2
公开(公告)日：2016-04-19
申请号：US14341554
申请日：2014-07-25
Inventor： Yong Ju Lee , Jeong Il Seo , Jae Hyoun Yoo , Seung Kwon Beack , Jong Mo Sung , Tae Jin Lee , Kyeong Ok Kang , Jin Woong Kim , Tae Jin Park , Dae Young Jang , Keun Woo Choi
IPC: H04R5/00 , H04S7/00 , G10L19/008
CPC classification number: G10L19/008 , H04S7/00 , H04S7/30 , H04S2400/01 , H04S2400/03
Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
Abstract translation: 公开了一种用于对多声道音频信号进行解码的双耳渲染方法和装置。 双耳渲染方法可以包括：从双耳滤波器提取早期反射分量和后期混响分量; 通过基于早期反射分量执行多声道音频信号的双耳渲染来产生立体声音频信号; 以及将后期混响分量应用于所生成的立体声音频信号。
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