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公开(公告)号：US12205599B2
公开(公告)日：2025-01-21
申请号：US18212364
申请日：2023-06-21
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：US11705137B2
公开(公告)日：2023-07-18
申请号：US16925946
申请日：2020-07-10
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：US11508386B2
公开(公告)日：2022-11-22
申请号：US16843649
申请日：2020-04-08
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation
Inventor： Hochong Park , Seung Kwon Beack , Jongmo Sung , Seong-Hyeon Shin , Mi Suk Lee , Tae Jin Lee , Jin Soo Choi
Abstract: An inventive concept relates to an audio coding method to which CNN-based frequency spectrum recovery is applied. An inventive concept transmits a part of frequency spectral coefficients generated in transform coding to a decoder and the decoder recovers the frequency spectral coefficient not transmitted. Furthermore, the signs of frequency spectral coefficient are transmitted from an encoder to the decoder depending on a sign transmission rule.
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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：US10714103B2
公开(公告)日：2020-07-14
申请号：US16557238
申请日：2019-08-30
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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Patent Agency Ranking
公开(公告)号：US10403293B2
公开(公告)日：2019-09-03
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：US10121482B2
公开(公告)日：2018-11-06
申请号：US15618689
申请日：2017-06-09
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 an 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 an 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; a frequency band expander for expanding a frequency band of the input signal whose output is transmitted to either the time-domain encoding module or the transform encoding module based on the input characteristic; and a bitstream generator to generate a bitstream using an output signal of the first conversion encoder and an output signal of the LPC encoder.
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公开(公告)号：US11456002B2
公开(公告)日：2022-09-27
申请号：US17018295
申请日：2020-09-11
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：US11456001B2
公开(公告)日：2022-09-27
申请号：US16814103
申请日：2020-03-10
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation
Inventor： Seung Kwon Beack , Jongmo Sung , Mi Suk Lee , Tae Jin Lee , Hochong Park
IPC: G10L19/02 , G06N3/04 , G10L21/038 , G10L19/032
Abstract: Disclosed are a method of encoding a high band of an audio, a method of decoding a high band of an audio, and an encoder and a decoder for performing the methods. The method of decoding a high band of an audio, the method performed by a decoder, includes identifying a parameter extracted through a first neural network, identifying side information extracted through a second neural network, and restoring a high band of an audio by applying the parameter and the side information to a third neural network.
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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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