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41.发明授权Unified Speech/Audio Codec (USAC) processing windows sequence based mode switching 有权统一语音/音频编解码器（USAC）处理基于Windows序列的模式切换公开(公告)号：US09384748B2
公开(公告)日：2016-07-05
申请号：US14588638
申请日：2015-01-02
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: G10L19/07 , G10L19/18 , G10L19/022 , G10L19/06
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.
Abstract translation: 提供了可以基于模式切换处理窗口序列的统一语音和音频编解码器（USAC）。 USAC可以通过在发生模式切换时基于折叠点在帧之间重叠来执行编码或解码。 USAC可以针对每种情况处理不同的窗口序列以执行编码或解码，从而可以提高编码效率。
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42.发明申请APPARATUS AND METHOD FOR ENCODING AND DECODING OF INTEGRATED SPEECH AND AUDIO UTILIZING A BAND EXPANDER TO OUTPUT THE AUDIO OR SPEECH TO A FREQUENCY DOMAIN ENCODER OR AN LPC ENCODER 审中-公开用于编码和解码集成语音和音频的装置和方法，使用带宽扩展器将音频或语音输出到频域编码器或LPC编码器公开(公告)号：US20150154974A1
公开(公告)日：2015-06-04
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
IPC: G10L19/12
CPC classification number: G10L19/12 , G10L19/008 , G10L19/02 , G10L19/20 , G10L19/22 , G11C2207/16
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 signal of the first conversion encoder and an output signal of the LPC encoder.
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装置和方法。 编码装置可以包括：输入信号分析器，用于分析输入信号的特性; 第一转换编码器，用于将输入信号转换为频域信号，并且在输入信号是音频特征信号时对输入信号进行编码; 线性预测编码（LPC）编码器，用于当输入信号是语音特征信号时执行输入信号的LPC编码; 以及比特流发生器，用于使用第一转换编码器的输出信号和LPC编码器的输出信号来产生比特流。
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公开(公告)号：US11875802B2
公开(公告)日：2024-01-16
申请号：US17706400
申请日：2022-03-28
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
CPC classification number: 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：US11778376B2
公开(公告)日：2023-10-03
申请号：US17582209
申请日：2022-01-24
Inventor： Yong Ju Lee , Jae-hyoun Yoo , Dae Young Jang , Kyeongok Kang , Tae Jin Lee
Abstract: An apparatus and method for pitch-shifting an audio signal with low complexity are disclosed. The method includes identifying a distance between an audio object included in the audio signal and a listener, checking whether the distance between the audio object and the listener decreases, and performing stepwise stretching pitch-shifting of repeatedly using at least one of frequency components of the audio signal when the distance between the audio object and the listener decreases.
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公开(公告)号：US11570571B2
公开(公告)日：2023-01-31
申请号：US17199757
申请日：2021-03-12
Inventor： Yong Ju Lee , Jae-hyoun Yoo , Mi Suk Lee , Kyeongok Kang , Dae Young Jang
IPC: H04S7/00 , G10L19/008 , H04S3/00
Abstract: A method and apparatus for performing binaural rendering of an audio signal are provided. The method includes identifying an input signal that is based on an object, and metadata that includes distance information indicating a distance to the object, generating a binaural filter that is based on the metadata, using a binaural room impulse response, obtaining a binaural filter to which a low-pass filter (LPF) is applied, using a frequency response control that is based on the distance information, and generating a binaural-rendered output signal by performing a convolution of the input signal and the binaural filter to which the LPF is applied.
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Patent Agency Ranking
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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47.发明授权公开(公告)号：US11330387B2
公开(公告)日：2022-05-10
申请号：US16647458
申请日：2019-10-01
Applicant: Electronics and Telecommunications Research Institute , CHUNG ANG UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION
Inventor： Dae Young Jang , Jae-hyoun Yoo , Yong Ju Lee , Tae Jin Lee , Sang Wook Kim
Abstract: An audio signal controlling method includes identifying whether an audio zooming effect is used for at least one audio object present in a virtual reality (VR) through an audio zooming effect field included in metadata, and controlling an audio signal corresponding to the audio object based on a preset method when the audio zooming effect is identified as being used.
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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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49.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：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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