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公开(公告)号：US11922962B2
公开(公告)日：2024-03-05
申请号：US17895256
申请日：2022-08-25
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Seungkwon Beack , Tae Jin Lee , Min Je Kim , Kyeongok Kang , Dae Young Jang , Jeongil Seo , Jin Woo Hong , Chieteuk Ahn , Ho Chong Park , Young-cheol Park
IPC: G10L19/022 , G10L19/06 , G10L19/18 , G10L19/22
CPC classification number: G10L19/22 , G10L19/022 , G10L19/06 , G10L19/18
Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
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公开(公告)号：US11430458B2
公开(公告)日：2022-08-30
申请号：US16835728
申请日：2020-03-31
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Seungkwon Beack , Tae Jin Lee , Min Je Kim , Kyeongok Kang , Dae Young Jang , Jeongil Seo , Jin Woo Hong , Chieteuk Ahn , Ho Chong Park , Young-cheol Park
IPC: G10L19/022 , G10L19/22 , G10L19/06 , G10L19/18
Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
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公开(公告)号：US10783893B2
公开(公告)日：2020-09-22
申请号：US16126964
申请日：2018-09-10
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：US10777212B2
公开(公告)日：2020-09-15
申请号：US16179120
申请日：2018-11-02
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Tae Jin Lee , Seung-Kwon Baek , Min Je Kim , Dae Young Jang , Jeongil Seo , Kyeongok Kang , Jin-Woo Hong , Hochong Park , Young-cheol Park
Abstract: Provided are an apparatus and a method for integrally encoding and decoding a speech signal and a audio signal. The encoding apparatus may include: an input signal analyzer to analyze a characteristic of an input signal; a first conversion encoder to convert the input signal to a frequency domain signal, and to encode the input signal when the input signal is a audio characteristic signal; a Linear Predictive Coding (LPC) encoder to perform LPC encoding of the input signal when the input signal is a speech characteristic signal; and a bitstream generator to generate a bitstream using an output.
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公开(公告)号：US10580419B2
公开(公告)日：2020-03-03
申请号：US16126964
申请日：2018-09-10
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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Patent Agency Ranking
公开(公告)号：US10068579B2
公开(公告)日：2018-09-04
申请号：US14758642
申请日：2014-01-15
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: H04R5/00 , 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：US10002619B2
公开(公告)日：2018-06-19
申请号：US15200404
申请日：2016-07-01
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Seungkwon Beack , Tae Jin Lee , Min Je Kim , Kyeongok Kang , Dae Young Jang , Jeongil Seo , Jin Woo Hong , Chieteuk Ahn , Ho Chong Park , Young-cheol Park
IPC: G10L19/022 , G10L19/22 , G10L19/06 , G10L19/18
CPC classification number: G10L19/22 , G10L19/022 , G10L19/06 , G10L19/18
Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
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公开(公告)号：US20180068667A1
公开(公告)日：2018-03-08
申请号：US15810732
申请日：2017-11-13
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation
Inventor： Tae Jin Lee , Seung Kwon Baek , Min Je Kim , Dae Young Jang , Jeongil Seo , Kyeongok Kang , Jin Woo Hong , Hochong Park , Young Cheol Park
Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate ; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.
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公开(公告)号：US09818411B2
公开(公告)日：2017-11-14
申请号：US14534781
申请日：2014-11-06
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , Kwangwoon University Industry—Academic Collaboration Foundation
Inventor： Tae Jin Lee , Seung Kwon Baek , Min Je Kim , Dae Young Jang , Jeongil Seo , Kyeongok Kang , Jin Woo Hong , Hochong Park , Young Cheol Park
Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.
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公开(公告)号：US09728198B2
公开(公告)日：2017-08-08
申请号：US15194174
申请日：2016-06-27
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: G10L19/125 , G10L19/22
CPC classification number: G10L19/087 , G10L19/125 , G10L19/22 , 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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