公开(公告)号：US10225675B2

公开(公告)日：2019-03-05

申请号：US15551734

申请日：2016-02-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon Beack ,  Jeong Il Seo ,  Jong Mo Sung ,  Tae Jin Lee ,  Dae Young Jang ,  Jin Soo Choi

IPC: H04S1/00 ,  G10L19/008 ,  H04S5/00 ,  H04S3/00 ,  H04S3/02

Abstract: Provided are an encoding method of a multichannel signal, an encoding apparatus to perform the encoding method, a multichannel signal processing method, and a decoding apparatus to perform the decoding method. The decoding method may include identifying an N/2-channel downmix signal derived from an N-channel input signal; and generating an N-channel output signal from the identified N/2-channel downmix signal using a plurality of one-to-two (OTT) boxes. If a low frequency effect (LFE) channel is absent in the output signal, the number of OTT boxes may be equal to N/2 where N/2 denotes the number of channels of the downmix signal.

公开(公告)号：US10199045B2

公开(公告)日：2019-02-05

申请号：US15838031

申请日：2017-12-11

Applicant: Electronics and Telecommunications Research Institute

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: G10L19/008 ,  H04S7/00

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.

公开(公告)号：US20180144757A1

公开(公告)日：2018-05-24

申请号：US15820852

申请日：2017-11-22

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon Beack ,  Jongmo Sung ,  Mi Suk Lee ,  Young Ho Jeong ,  Tae Jin Lee ,  Sang Won Suh

IPC: G10L19/16 ,  G06F17/22

CPC classification number: G10L19/167 ,  G06F17/2252

Abstract: Disclosed is a bitstream generation method performed by an acoustic data transmission (ADT) encoder, the method including receiving a first audio signal, receiving additional information converted into a bitstream, and transmitting a second audio signal obtained by inserting the bitstream into the first audio signal, to an ADT decoder.

公开(公告)号：US09842597B2

公开(公告)日：2017-12-12

申请号：US15131623

申请日：2016-04-18

Applicant: Electronics and Telecommunications Research Institute

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: G10L19/008 ,  H04S7/00

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.

公开(公告)号：US09595266B2

公开(公告)日：2017-03-14

申请号：US14435372

申请日：2013-07-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon Beack ,  Jeong Il Seo ,  Tae Jin Lee ,  Jong Mo Sung ,  Kyeong Ok Kang ,  Jin Woong Kim

IPC: H04R5/00 ,  G10L19/008 ,  H04S7/00 ,  H04S3/00

CPC classification number: G10L19/008 ,  H04S3/008 ,  H04S7/305

Abstract: An audio coding and decoding apparatus is disclosed. The audio coding apparatus may include an audio signal encoding unit to encode an audio signal; and a bitstream transmission unit to convert the audio signal into a bitstream and transmit the bitstream, wherein the audio signal comprises a channel audio signal, an object audio signal, and a reverberation signal of the object audio signal.

Abstract translation: 公开了一种音频编码和解码装置。 音频编码装置可以包括音频信号编码单元，用于对音频信号进行编码; 以及比特流传输单元，用于将音频信号转换为比特流并传输比特流，其中，音频信号包括对象音频信号的频道音频信号，对象音频信号和混响信号。

公开(公告)号：US09378749B2

公开(公告)日：2016-06-28

申请号：US14541904

申请日：2014-11-14

Applicant: Electronics and Telecommunications Research Institute

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）。

公开(公告)号：US09197887B2

公开(公告)日：2015-11-24

申请号：US13678315

申请日：2012-11-15

Applicant: Electronics and Telecommunications Research Institute ,  National University of Sciences & Technology

Inventor： Yong Ju Cho ,  Ji Hun Cha ,  Myung Seok Ki ,  Seong Yong Lim ,  Yong Ju Lee ,  Seung Kwon Beack ,  Jin Woong Kim ,  Rehan Hafiz ,  Muhammad Murtaza Khan ,  Atif Ahmed ,  Arshad Ali

IPC: H04N9/31 ,  H04N17/04

CPC classification number: H04N17/04 ,  H04N9/3185 ,  H04N9/3194

Abstract: Provided is a geometric correction apparatus and method based on a recursive Bezier patch sub-division. A geometric correction method may include: receiving, from a camera, a first image that is obtained by photographing a black screen that is projected by a projector onto a projection surface; receiving, from the camera, a second image that is obtained by photographing a predetermined pattern that is projected by the projector onto the projection screen; generating a third image by subtracting the first image from the second image; and performing geometric correction with respect to the predetermined pattern to correct a distortion between the predetermined pattern and the third image.

Abstract translation: 提供了一种基于递归贝塞尔补丁子分割的几何校正装置和方法。 几何校正方法可以包括：从相机接收通过将由投影仪投影的黑屏拍摄到投影面上而获得的第一图像; 从照相机接收通过将由投影仪投影的预定图案拍摄到投影屏幕上而获得的第二图像; 通过从第二图像中减去第一图像来产生第三图像; 以及对所述预定图案执行几何校正，以校正所述预定图案与所述第三图像之间的失真。

公开(公告)号：US20150255078A1

公开(公告)日：2015-09-10

申请号：US14423366

申请日：2013-08-22

Applicant: Electronics and Telecommunications Research Institute ,  THE KOREA DEVELOPMENT BANK

Inventor： Seung Kwon Beack ,  Tae Jin Lee ,  Kyeong Ok Kang ,  Keun Woo Choi ,  Jong Mo Sung

IPC: G10L19/00

CPC classification number: G10L19/0017 ,  G10L19/002 ,  G10L19/008 ,  G10L19/0212 ,  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.

Abstract translation: 公开了一种使用无损编码或有损编码对音频信号进行编码的音频编码装置和用于解码编码音频信号的音频解码装置。 根据示例性实施例的音频编码装置可以包括：输入信号类型确定单元，用于基于输入信号的特性来确定输入信号的类型;残差信号产生单元，用于基于来自所述输入信号的输出信号产生残留信号 输入信号类型确定单元，以及使用该残差信号执行无损编码或有损编码的编码单元。

公开(公告)号：US20140310010A1

公开(公告)日：2014-10-16

申请号：US14358104

申请日：2012-11-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jeong ll Seo ,  Seung Kwon Beack ,  Kyeong Ok Kang ,  Tae Jin Lee ,  Yong Ju Lee ,  Jae Hyoun Yoo ,  Keun Woo Choi ,  Jin Woong Kim

IPC: G10L19/008

CPC classification number: G10L19/008 ,  G10L19/24

Abstract: An encoding apparatus and a decoding apparatus supporting a scalable multichannel audio signal, and methods performed by the apparatuses art provided. When compressing and decompressing a multichannel audio signal to compress and reproduce high quality 3-dimensional (3D) audio, the apparatuses and the methods in integrated form of (1) a sound quality scalability function for providing various qualities of audio adaptively to a transmission environment, terminal performance, and a listening environment (2) a channel scalability function for providing multichannel signals of various formats adaptively to the transmission environment, the terminal performance, and a reproduction environment of a terminal, such as speaker arrangement, and (3) an object scalability function for independently controlling a particular audio object to maximize a 3D sound field effect.

Abstract translation: 支持可扩展多声道音频信号的编码装置和解码装置，以及由所提供的装置技术执行的方法。 当压缩和解压缩多声道音频信号以压缩和再现高质量的三维（3D）音频时，所述装置和方法以（1）声音质量可扩展性功能的综合形式，用于自适应地向传输环境提供音频质量 ，终端性能和收听环境（2）用于自适应地提供诸如扬声器布置的终端的传输环境，终端性能和再现环境的各种格式的多信道信号的信道可扩展性功能，以及（3） 用于独立地控制特定音频对象以最大化3D声场效应的对象可伸缩性功能。