公开(公告)号：WO2010032992A2

公开(公告)日：2010-03-25

申请号：PCT/KR2009005340

申请日：2009-09-18

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  BEACK SEUNG KWON ,  LEE TAE JIN ,  KIM MIN JE ,  JANG DAE YOUNG ,  KANG KYEONGOK ,  HONG JIN WOO ,  PARK HO CHONG ,  PARK YOUNG-CHEOL

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

IPC: G10L19/02

CPC classification number: G10L19/0212

Abstract: 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.

Abstract translation: 提供了基于改进离散余弦变换（MDCT）的编码器和异步编码器之间的变换中的编码装置和解码装置。 当在基于MDCT的编码器和异步编码器之间进行切换时，编码装置可以编码附加信息以恢复根据基于MDCT的编码方案编码的输入信号。 因此，可以防止不必要的比特流被生成，并且可以编码最小的附加信息。

公开(公告)号：WO2011046329A3

公开(公告)日：2011-09-01

申请号：PCT/KR2010006931

申请日：2010-10-11

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  KIM MIN JE ,  BEACK SEUNG KWON ,  LEE TAE JIN ,  KANG KYEONG OK ,  SEO JONG IL ,  KIM JIN WOONG ,  HONG JIN WOO ,  PARK HO CHONG ,  PARK YOUNG CHEOL

Inventor： KIM MIN JE ,  BEACK SEUNG KWON ,  LEE TAE JIN ,  KANG KYEONG OK ,  SEO JONG IL ,  KIM JIN WOONG ,  HONG JIN WOO ,  PARK HO CHONG ,  PARK YOUNG CHEOL

IPC: G10L19/12 ,  G10L19/02 ,  G10L19/025 ,  H03M7/30

CPC classification number: G10L19/025

Abstract: Disclosed is an integrated voice/audio encoding/decoding apparatus whereby the overlap region of a window is adjusted based on the transition interval. In the present invention, encoding is carried out by making windows of relatively long length overlap in order to increase the efficiency of encoding, while the overlap region of the windows is reduced in accordance with the transition interval when there is a transition interval between frames, thereby making it possible to reduce the occurrence of noise due to transition intervals.

Abstract translation: 公开了一种集成的语音/音频编码/解码装置，由此基于转换间隔调整窗口的重叠区域。 在本发明中，通过使长度相对较长的窗口相互重叠来进行编码，以提高编码的效率，同时当帧之间存在转换间隔时，根据转换间隔减小窗口的重叠区域， 从而可以减少由于过渡间隔引起的噪声的发生。

公开(公告)号：WO2010062123A3

公开(公告)日：2013-02-28

申请号：PCT/KR2009007011

申请日：2009-11-26

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  BEACK SEUNGKWON ,  LEE TAE JIN ,  KIM MIN JE ,  KANG KYEONGOK ,  JANG DAE YOUNG ,  SEO JEONGIL ,  HONG JIN WOO ,  AHN CHIETEUK ,  PARK HO CHONG ,  PARK YOUNG-CHEOL

Inventor： BEACK SEUNGKWON ,  LEE TAE JIN ,  KIM MIN JE ,  KANG KYEONGOK ,  JANG DAE YOUNG ,  SEO JEONGIL ,  HONG JIN WOO ,  AHN CHIETEUK ,  PARK HO CHONG ,  PARK YOUNG-CHEOL

IPC: H04N7/12 ,  G10L19/022 ,  G10L19/04 ,  G10L19/12 ,  G10L19/20 ,  G10L19/22

CPC classification number: G10L19/22 ,  G10L19/022 ,  G10L19/20

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。

公开(公告)号：WO2011010876A3

公开(公告)日：2011-04-21

申请号：PCT/KR2010004806

申请日：2010-07-22

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  BEACK SEUNG KWON ,  LEE TAE JIN ,  KIM MIN JE ,  KANG KYEONG OK ,  JANG DAE YOUNG ,  SEO JEONG IL ,  KIM JIN WOONG ,  HOHNG JIN WOO ,  PARK HO CHONG ,  PARK YOUNG CHEOL

Inventor： BEACK SEUNG KWON ,  LEE TAE JIN ,  KIM MIN JE ,  KANG KYEONG OK ,  JANG DAE YOUNG ,  SEO JEONG IL ,  KIM JIN WOONG ,  HOHNG JIN WOO ,  PARK HO CHONG ,  PARK YOUNG CHEOL

IPC: G10L19/04 ,  G10L19/02 ,  G10L19/022

CPC classification number: G10L19/022 ,  G10L19/0212

Abstract: Disclosed are an apparatus and method for window processing for connecting between an MDCT frame and a heterogeneous frame, an encoding apparatus and encoding method, and a decoding apparatus and decoding method. The window processing method involves applying, to the MDCT frame, a window for interconnection between the MDCT frame and a frame having no aliasing term, so as to satisfy TDAC conditions for the recovery of an original signal.

Abstract translation: 公开了用于在MDCT帧和异构帧之间进行连接的窗口处理的设备和方法，编码设备和编码方法以及解码设备和解码方法。 窗口处理方法涉及向MDCT帧应用用于MDCT帧和不具有混叠项的帧之间的互连的窗口，从而满足用于恢复原始信号的TDAC条件。

公开(公告)号：WO2010134759A3

公开(公告)日：2011-03-03

申请号：PCT/KR2010003171

申请日：2010-05-19

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  BEACK SEUNG KWON ,  LEE TAE JIN ,  KIM MIN JE ,  KANG KYEONGOK ,  JANG DAE YOUNG ,  SEO JEONGIL ,  KIM JIN WOONG ,  HONG JIN WOO ,  PARK HO CHONG ,  PARK YOUNG-CHEOL

Inventor： BEACK SEUNG KWON ,  LEE TAE JIN ,  KIM MIN JE ,  KANG KYEONGOK ,  JANG DAE YOUNG ,  SEO JEONGIL ,  KIM JIN WOONG ,  HONG JIN WOO ,  PARK HO CHONG ,  PARK YOUNG-CHEOL

IPC: G10L19/04 ,  G10L19/02 ,  G10L19/022 ,  G10L19/12 ,  G10L19/22 ,  H03M7/30

CPC classification number: G10L19/22 ,  G10L19/0212 ,  G10L19/022 ,  G10L19/12

Abstract: The present invention relates to a window processing method and apparatus for interworking between an MDCT-TCX frame and a CELP frame. The window processing apparatus comprises: a coding mode decision unit for deciding a preceding subframe coding mode and a subsequent subframe coding mode, with respect to a current subframe; and a window application unit for applying a window that is determined according to the preceding subframe coding mode and the subsequent subframe coding mode, to the current subframe.

Abstract translation: 本发明涉及一种用于在MDCT-TCX帧和CELP帧之间进行交互的窗口处理方法和装置。 窗口处理装置包括：编码模式判定单元，用于相对于当前子帧来决定前一子帧编码模式和后续子帧编码模式; 以及窗口应用单元，用于将根据前述子帧编码模式和后续子帧编码模式确定的窗口应用于当前子帧。

公开(公告)号：WO2010044593A2

公开(公告)日：2010-04-22

申请号：PCT/KR2009005881

申请日：2009-10-13

Applicant: KOREA ELECTRONICS TELECOMM ,  UNIV KWANGWOON IND ACAD COLLAB ,  BEACK SEUNG KWON ,  LEE TAE JIN ,  KIM MIN JE ,  KANG KYEONGOK ,  JANG DAE YOUNG ,  HONG JIN WOO ,  SEO JEONGIL ,  AHN CHIETEUK ,  PARK HOCHONG ,  PARK YOUNG-CHEOL

Inventor： BEACK SEUNG KWON ,  LEE TAE JIN ,  KIM MIN JE ,  KANG KYEONGOK ,  JANG DAE YOUNG ,  HONG JIN WOO ,  SEO JEONGIL ,  AHN CHIETEUK ,  PARK HOCHONG ,  PARK YOUNG-CHEOL

IPC: G10L19/08 ,  G10L19/087

CPC classification number: G10L19/087

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 encodes 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（ ACELP）。