Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
WINDOW PROCESSING METHOD AND APPARATUS FOR INTERWORKING BETWEEN MDCT-TCX FRAME AND CELP FRAME
Document Type and Number:
WIPO Patent Application WO/2010/134759
Kind Code:
A3
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.

Inventors:
BEACK SEUNG KWON (KR)
LEE TAE JIN (KR)
KIM MIN JE (KR)
KANG KYEONGOK (KR)
JANG DAE YOUNG (KR)
SEO JEONGIL (KR)
KIM JIN WOONG (KR)
HONG JIN WOO (KR)
PARK HO CHONG (KR)
PARK YOUNG-CHEOL (KR)
Application Number:
KR2010/003171
Publication Date:
March 03, 2011
Filing Date:
May 19, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KOREA ELECTRONICS TELECOMM (KR)
UNIV KWANGWOON IND ACAD COLLAB (KR)
BEACK SEUNG KWON (KR)
LEE TAE JIN (KR)
KIM MIN JE (KR)
KANG KYEONGOK (KR)
JANG DAE YOUNG (KR)
SEO JEONGIL (KR)
KIM JIN WOONG (KR)
HONG JIN WOO (KR)
PARK HO CHONG (KR)
PARK YOUNG-CHEOL (KR)
International Classes:
G10L19/04; G10L19/02; G10L19/022; G10L19/12; G10L19/22; H03M7/30
Foreign References:
KR20060131732A2006-12-20
Other References:
LECOMTE J. ET AL: "Efficient cross-fade windows for transitions between LPC-based and non-LPC based audio coding", AUDIO ENGINEERING SOCIETY THE 126TH CONVENTION, 7 May 2009 (2009-05-07)
NEUENDORF M. ET AL: "Universal Speech and Audio Coding Scheme for High Quality at Low Bitrates", PROC. ICASSP, 19 April 2009 (2009-04-19), pages 1 - 4
BESSETTE B. ET AL: "Universal speech/audio coding using hybrid ACELP/TCX techniques", PROC. ICASSP, vol. 3, March 2005 (2005-03-01), pages 301 - 304, XP055022141, DOI: doi:10.1109/ICASSP.2005.1415706
Attorney, Agent or Firm:
MUHANN PATENT & LAW FIRM (6th Floor Myeonglim Building,,51-8 Nonhyeon-dong, Gangnam-gu, Seoul 135-814, KR)
Download PDF: