公开(公告)号：EP2302624A4

公开(公告)日：2012-10-31

申请号：EP09798079

申请日：2009-07-14

申请人： KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB

发明人： LEE TAE JIN ,  BEACK SEUNG KWON ,  KIM MINJE ,  JANG DAE YOUNG ,  SEO JEONGIL ,  KANG KYEONGOK ,  HONG JIN WOO ,  PARK HOCHONG ,  PARK YOUNG-CHEOL

IPC分类号： G01L19/14 ,  G10L19/00 ,  G10L19/008 ,  G10L19/20

CPC分类号： G10L19/008 ,  G10L19/00 ,  G10L19/02 ,  G10L19/04 ,  G10L19/12 ,  G10L19/20

摘要： 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.

公开(公告)号：EP2339577A4

公开(公告)日：2012-05-23

申请号：EP09814808

申请日：2009-09-18

申请人： KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB

发明人： BEACK SEUNG KWON ,  LEE TAE JIN ,  KIM MIN JE ,  JANG DAE YOUNG ,  KANG KYEONGOK ,  HONG JIN WOO ,  PARK HO CHONG ,  PARK YOUNG-CHEOL

IPC分类号： G10L19/14 ,  G10L19/02

CPC分类号： G10L19/0212

摘要： An encoding apparatus and a decoding apparatus in a transform between a Modified Discrete Cosine Transform (MDCT)-based coder and a hetero coder are provided. The encoding apparatus may encode additional information to restore an input signal encoded according to the MDCT-based coding scheme, when switching occurs between the MDCT-based coder and the hetero coder. Accordingly, an unnecessary bitstream may be prevented from being generated, and minimum additional information may be encoded,

公开(公告)号：EP1859439A4

公开(公告)日：2010-12-22

申请号：EP06716366

申请日：2006-03-14

申请人： KOREA ELECTRONICS TELECOMM

发明人： SEO JEONG IL ,  BEACK SEUNG KWON ,  JANG IN SEON ,  KANG KYEONG OK ,  HONG JIN WOO ,  HAHN MIN SOO

IPC分类号： G10L19/00 ,  G10L19/008 ,  G10L19/02

CPC分类号： G10L19/008 ,  G10L19/0204

摘要： A method for compressing and decompressing a multi-channel signal using virtual source location information (VSLI) on a semicircular plane is provided. VSLI, rather than inter channel level difference (ICLD), is used as spatial cue information, thereby minimizing loss caused by quantization of spatial cue information, improving sound quality of a decompressed audio signal, and reproducing an excellent audio signal by reducing distortion upon decompression of an original signal at a decoder spectrum.

公开(公告)号：EP2302623A4

公开(公告)日：2016-04-13

申请号：EP09798078

申请日：2009-07-14

申请人： KOREA ELECTRONICS TELECOMM

发明人： LEE TAE JIN ,  BEACK SEUNG KWON ,  KIM MINJE ,  JANG DAE YOUNG ,  KANG KYEONGOK ,  HONG JIN WOO ,  PARK HOCHONG ,  PARK YOUNG-CHEOL

IPC分类号： G10L19/02 ,  G10L19/12 ,  G10L19/20

CPC分类号： G10L19/20 ,  G10L19/0212 ,  G10L19/12

摘要： Provided is an apparatus for integrally encoding and decoding a speech signal and an audio signal. An encoding apparatus for integrally encoding a speech signal and an audio signal, may include: a module selection unit to analyze a characteristic of an input signal and to select a first encoding module for encoding a first frame of the input signal; a speech encoding unit to encode the input signal according to a selection of the module selection unit and to generate a speech bitstream; an audio encoding unit to encode the input signal according to the selection of the module selection unit and to generate an audio bitstream; and a bitstream generation unit to generate an output bitstream from the speech encoding unit or the audio encoding unit according to the selection of the module selection unit.

公开(公告)号：EP1779385A4

公开(公告)日：2007-07-25

申请号：EP05774399

申请日：2005-07-08

申请人： KOREA ELECTRONICS TELECOMM

发明人： SEO JEONG IL ,  MOON HAN GIL ,  BEACK SEUNG KWON ,  KANG KYEONG OK ,  JANG IN SEON ,  SUNG KOENG MO ,  HAHN MIN SOO ,  HONG JIN WOO

IPC分类号： G11B20/10 ,  G10L19/00 ,  G10L19/008 ,  H04S3/00

CPC分类号： H04S3/008 ,  G10L19/008 ,  H04S2420/03

摘要： Provided is a method and apparatus for encoding/decoding a multi-channel audio signal. The apparatus for encoding a multi-channel audio signal includes a frame converter for converting the multi-channel audio signal into a framed audio signal; means for downmixing the framed audio signal; means for encoding the downmixed audio signal; a source location information estimator for estimating source location information from the framed multi-channel audio signal; means for quantizing the estimated source location information; and means for multiplexing the encoded audio signal and the quantized source location information, to generate an encoded multi-channel audio signal.

摘要翻译： 提供了一种用于编码/解码多声道音频信号的方法和设备。 用于编码多声道音频信号的设备包括：帧转换器，用于将多声道音频信号转换为成帧音频信号; 用于对混淆的音频信号进行缩混的装置; 用于对缩混后的音频信号进行编码的装置; 源位置信息估计器，用于从成帧的多声道音频信号估计源位置信息; 用于量化估计的源位置信息的装置; 以及用于多路复用编码的音频信号和量化的源位置信息以生成编码的多声道音频信号的装置。

公开(公告)号：EP1905034A4

公开(公告)日：2009-11-25

申请号：EP06783342

申请日：2006-07-19

申请人： KOREA ELECTRONICS TELECOMM

发明人： SEO JEONG IL ,  KANG KYEONG OK ,  HONG JIN WOO ,  KIM KWANG KI ,  BEACK SEUNG KWON ,  HAHN MIN SOO ,  CHON SANG BAE ,  SUNG KOENG MO

IPC分类号： G11B20/10 ,  G10L19/00 ,  G10L19/008 ,  G10L19/02 ,  G10L19/032

CPC分类号： G10L19/032 ,  G10L19/008