公开(公告)号：US10511925B2

公开(公告)日：2019-12-17

申请号：US16126466

申请日：2018-09-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju Lee ,  Jeong Il Seo ,  Seung Kwon Beack ,  Kyeong Ok Kang ,  Jin Woong Kim ,  Jae Hyoun Yoo

IPC: H04S3/00 ,  G10L19/008

Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.

公开(公告)号：US10075795B2

公开(公告)日：2018-09-11

申请号：US14767538

申请日：2014-04-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju Lee ,  Jeong Il Seo ,  Seung Kwon Beack ,  Kyeong Ok Kang ,  Jin Woong Kim ,  Jae Hyoun Yoo

IPC: H04S3/00 ,  G10L19/008

CPC classification number: H04S3/008 ,  G10L19/008 ,  H04S2400/01

Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.

公开(公告)号：US10008214B2

公开(公告)日：2018-06-26

申请号：US15260717

申请日：2016-09-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon Beack ,  Tae Jin Lee ,  Jong Mo Sung ,  Kyu Tae Yang ,  Bong Ho Lee ,  Mi Suk Lee ,  Hyoung Soo Lim ,  Jin Soo Choi

IPC: G10L19/18 ,  G10L19/16

CPC classification number: G10L19/167 ,  G10L19/18

Abstract: Disclosed is a unified speech and audio coding (USAC) audio signal encoding/decoding apparatus and method for digital radio services. An audio signal encoding method may include receiving an audio signal, determining a coding method for the received audio signal, encoding the audio signal based on the determined coding method, and configuring, as an audio superframe of a fixed size, an audio stream generated as a result of encoding the audio signal, wherein the coding method may include a first coding method associated with extended high-efficiency advanced audio coding (xHE-AAC) and a second coding method associated with existing advanced audio coding (AAC).

公开(公告)号：US09906883B2

公开(公告)日：2018-02-27

申请号：US14477498

申请日：2014-09-04

Applicant: Electronics and Telecommunications Research Institute

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: G10L19/008 ,  H04S3/00

CPC classification number: H04S3/008 ,  G10L19/008 ,  H04S2420/03

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.

公开(公告)号：US09185288B2

公开(公告)日：2015-11-10

申请号：US13800119

申请日：2013-03-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Myung Seok Ki ,  Yong Ju Cho ,  Seong Yong Lim ,  Ji hun Cha ,  Seung Kwon Beack ,  Yong Ju Lee ,  Jin Woong Kim ,  Seong Dae Kim ,  Wook Joong Kim ,  Ji Sung Yoo ,  Sung Soo Hwang

IPC: H04N5/232 ,  H04N13/00

CPC classification number: H04N5/23238 ,  H04N13/106 ,  H04N13/161

Abstract: An apparatus and method for generating and consuming a three-dimensional (3D) data format to generate a realistic panoramic image are provided. The apparatus may include an image preprocessing unit to search for a matching point between images captured by a plurality of cameras, and to extract, as image information, at least one of a depth value, a texture value and object division information from each of the captured images, an image information structuring unit to structure 3D data to use the extracted image information to generate a realistic image, a 3D data format storage unit to store format information of the structured 3D data in a database (DB), realistic image generating unit to generate a realistic panoramic image using the stored format information of the 3D data, and a realistic image rendering unit to perform rendering on the generated realistic panoramic image.

Abstract translation: 提供了一种用于产生和消耗三维（3D）数据格式以产生逼真全景图像的装置和方法。 该装置可以包括图像预处理单元，用于搜索由多个相机拍摄的图像之间的匹配点，并且从图像信息中提取深度值，纹理值和对象分割信息中的至少一个， 拍摄图像，用于构造3D数据以使用所提取的图像信息以生成逼真图像的图像信息构造单元; 3D数据格式存储单元，用于将结构化3D数据的格式信息存储在数据库（DB）中，逼真图像生成单元 使用存储的3D数据的格式信息生成逼真的全景图像，以及逼真的图像渲染单元，对所生成的逼真全景图像执行渲染。

公开(公告)号：US11881227B2

公开(公告)日：2024-01-23

申请号：US18097054

申请日：2023-01-13

Applicant: Electronics and Telecommunications Research Institute ,  Industry-Academic Cooperation Foundation, Yonsei University

Inventor： In Seon Jang ,  Seung Kwon Beack ,  Jong Mo Sung ,  Tae Jin Lee ,  Woo Taek Lim ,  Byeong Ho Cho ,  Hong Goo Kang ,  Ji Hyun Lee ,  Chan Woo Lee ,  Hyung Seob Lim

IPC: G10L19/04 ,  G10L19/038 ,  G10L19/002 ,  G10L19/12 ,  G10L19/08 ,  G10L19/09 ,  G10L19/06 ,  G10L19/13 ,  G10L19/02

CPC classification number: G10L19/038 ,  G10L19/002 ,  G10L19/0204 ,  G10L19/04 ,  G10L19/06 ,  G10L19/08 ,  G10L19/09 ,  G10L19/12 ,  G10L19/13

Abstract: A method, executed by a processor for compressing an audio signal in multiple layers, may comprise: (a) restoring, in a highest layer, an input audio signal as a first signal; (b) restoring, in at least one intermediate layer, a signal obtained by subtracting an upsampled signal, which is obtained by upsampling the audio signal restored in the highest layer or an immediately previous intermediate layer, from the input audio signal as a second signal; and (c) restoring, in a lowest layer, a signal obtained by subtracting an upsampled signal, which is obtained by upsampling the audio signal restored in an intermediate layer immediately before the lowest layer, from the input audio signal as a third signal, wherein the first signal, the second signal, and the third signal are combined to output a final restoration audio signal.

公开(公告)号：US11875802B2

公开(公告)日：2024-01-16

申请号：US17706400

申请日：2022-03-28

Applicant: Electronics and Telecommunications Research Institute

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.

公开(公告)号：US11823688B2

公开(公告)日：2023-11-21

申请号：US17390753

申请日：2021-07-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  The Trustees of Indiana University

Inventor： Woo-taek Lim ,  Seung Kwon Beack ,  Jongmo Sung ,  Tae Jin Lee ,  Inseon Jang ,  Minje Kim

IPC: G10L19/008 ,  G06N3/04 ,  G10L19/032 ,  G10L19/24

CPC classification number: G10L19/008 ,  G06N3/04 ,  G10L19/032

Abstract: Disclosed are a method of encoding and decoding an audio signal and an encoder and a decoder performing the method. The method of encoding an audio signal includes identifying an input signal, and generating a bitstring of each encoding layer by applying, to the input signal, an encoding model including a plurality of successive encoding layers that encodes the input signal, in which a current encoding layer among the encoding layers is trained to generate a bitstring of the current encoding layer by encoding an encoded signal which is a signal encoded in a previous encoding layer and quantizing an encoded signal which is a signal encoded in the current encoding layer.

公开(公告)号：US11783844B2

公开(公告)日：2023-10-10

申请号：US17527351

申请日：2021-11-16

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  Gwangju Institute of Science and Technology

Inventor： Woo-taek Lim ,  Seung Kwon Beack ,  Jongmo Sung ,  Tae Jin Lee ,  Inseon Jang ,  Jong Won Shin ,  Soojoong Hwang ,  Youngju Cheon ,  Sangwook Han

IPC: G10L17/02 ,  G10L21/00 ,  G10L19/00 ,  G10L19/02 ,  G10L25/30 ,  G10L25/21 ,  G06N3/045

CPC classification number: G10L19/02 ,  G06N3/045 ,  G10L25/21 ,  G10L25/30

Abstract: Disclosed are methods of encoding and decoding an audio signal using side information, and an encoder and a decoder for performing the methods. The method of encoding an audio signal using side information includes identifying an input signal, the input signal being an original audio signal, extracting side information from the input signal using a learning model trained to extract side information from a feature vector of the input signal, encoding the input signal, and generating a bitstream by combining the encoded input signal and the side information.

公开(公告)号：US11581000B2

公开(公告)日：2023-02-14

申请号：US17105835

申请日：2020-11-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Woo-Taek Lim ,  Seung Kwon Beack ,  Jongmo Sung ,  Mi Suk Lee ,  Tae Jin Lee

IPC: G10L19/00 ,  G10L25/30 ,  G10L19/16 ,  G06N3/08 ,  G10L19/038

Abstract: Disclosed is an apparatus and method for encoding/decoding an audio signal using information of a previous frame. An audio signal encoding method includes: generating a current latent vector by reducing dimension of a current frame of an audio signal; generating a concatenation vector by concatenating a previous latent vector generated by reducing dimension of a previous frame of the audio signal with the current latent vector; and encoding and quantizing the concatenation vector.