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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：US10692508B2
公开(公告)日：2020-06-23
申请号：US16224820
申请日：2018-12-19
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY , WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
Inventor： Taegyu Lee , Hyunoh Oh , Jeongil Seo , Yongju Lee , Seungkwon Beack , Kyeongok Kang , Daeyoung Jang , Youngcheol Park , Daehee Youn
IPC: G06F17/00 , G10L19/008 , H04S3/00 , H04R5/033 , H04R3/00
Abstract: The present invention relates to a method and an apparatus for processing a signal, which are used to effectively reproduce an audio signal, and more particularly, to a method for generating a filter for an audio signal, which are used for implementing a filtering for input audio signals with a low computational complexity and a parameterization apparatus therefor.To this end, provided are a method for generating a filter of an audio signal, including: receiving at least one proto-type filter coefficient for filtering each subband signal of an input audio signal; converting the proto-type filter coefficient into a plurality of subband filter coefficients; truncating each of the subband filter coefficients based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, the length of at least one truncated subband filter coefficients being different from the length of truncated subband filter coefficients of another subband; and generating FFT filter coefficients by fast Fourier transforming (FFT) the truncated subband filter coefficients by a predetermined block size in the corresponding subband and a parameterization unit using the same.
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公开(公告)号：US10204630B2
公开(公告)日：2019-02-12
申请号：US15031274
申请日：2014-10-22
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY , WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
Inventor： Taegyu Lee , Hyunoh Oh , Jeongil Seo , Yongju Lee , Seungkwon Beack , Kyeongok Kang , Daeyoung Jang , Youngcheol Park , Daehee Youn
IPC: G06F17/00 , G10L19/008 , H04S3/00 , H04R5/033 , H04R3/00
Abstract: The present invention relates to a method and an apparatus for processing a signal, which are used to effectively reproduce an audio signal, and more particularly, to a method for generating a filter for an audio signal, which are used for implementing a filtering for input audio signals with a low computational complexity and a parameterization apparatus therefor.To this end, provided are a method for generating a filter of an audio signal, including: receiving at least one proto-type filter coefficient for filtering each subband signal of an input audio signal; converting the proto-type filter coefficient into a plurality of subband filter coefficients; truncating each of the subband filter coefficients based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, the length of at least one truncated subband filter coefficients being different from the length of truncated subband filter coefficients of another subband; and generating FFT filter coefficients by fast Fourier transforming (FFT) the truncated subband filter coefficients by a predetermined block size in the corresponding subband and a parameterization unit using the same.
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公开(公告)号：US11887612B2
公开(公告)日：2024-01-30
申请号：US17895233
申请日：2022-08-25
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 , G10L19/125 , G10L19/22 , G10L19/26
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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Patent Agency Ranking
公开(公告)号：US11823402B2
公开(公告)日：2023-11-21
申请号：US17306429
申请日：2021-05-03
Applicant: Electronics and Telecommunications Research Institute , The Trustees of Indiana University
Inventor： Soon Heung Jung , Jeongil Seo , Jagpreet Singh Chawla , Nikhil Thakurdesai , David Crandall , Md Reza , Anuj Godase
CPC classification number: G06T7/50 , G06T7/0002 , G06T2207/10024 , G06T2207/10028 , G06T2207/20081 , G06T2207/30168
Abstract: A method and apparatus for correcting an error in depth information estimated from a two-dimensional (2D) image are disclosed. The method includes diagnosing an error in depth information by inputting a color image and depth information estimated using the color image to a depth error detection network, and determining enhanced depth information by maintaining or correcting the depth information based on the diagnosed error.
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公开(公告)号：US09711159B2
公开(公告)日：2017-07-18
申请号：US14605006
申请日：2015-01-26
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
CPC classification number: G10L19/12 , G10L19/008 , G10L19/02 , G10L19/20 , G10L19/22 , G11C2207/16
Abstract: 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; a frequency band expander with the spectral band replication (SBR) standard for expanding the frequency band of the input signal whose output is transmitted to either the first conversion encoder or the LPC encoder 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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8.发明授权LPC residual signal encoding/decoding apparatus of modified discrete cosine transform (MDCT)-based unified voice/audio encoding device 有权基于修正离散余弦变换（MDCT）的统一语音/音频编码装置的LPC残余信号编码/解码装置公开(公告)号：US09378749B2
公开(公告)日：2016-06-28
申请号：US14541904
申请日：2014-11-14
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: G10L21/00 , 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).
Abstract translation: 公开了一种基于MDCT的统一语音和音频编码装置的LPC残余信号编码/解码装置。 LPC残差信号编码装置分析输入信号的特性，选择LPC滤波信号的编码方式，并根据实数滤波器组，复滤波器组和代数码激励线性预测（LPC滤波器组） ACELP）。
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公开(公告)号：US20150095023A1
公开(公告)日：2015-04-02
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
IPC: G10L19/008 , G10L19/12
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.
Abstract translation: 提供了一种用于对语音信号和音频信号进行整体编码和解码的编码装置，并且可以包括：输入信号分析器，用于分析输入信号的特性; 立体声编码器，当输入信号是立体声信号时，将输入信号向下混合成单声道信号，并提取立体声声像信息; 用于扩展输入信号的频带的频带扩展器; 用于转换采样率的采样率转换器; 语音信号编码器，当所述输入信号是语音特征信号时，使用语音编码模块对所述输入信号进行编码; 音频信号编码器，当所述输入信号是音频特征信号时，使用音频编码模块对所述输入信号进行编码; 以及比特流发生器，用于生成比特流。
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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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