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(11)

EP 1 820 366 A1

(12)

(43) Date of publication: 22.08.2007 Bulletin 2007/34 (21) Application number: 05820726.7 (22) Date of filing: 28.11.2005

(51) International Patent Classification (IPC):  H04Q 7/38(2006.01) (86) International application number: PCT/KR2005/004021 (87) International publication number: WO 2006/062306 (15.06.2006 Gazette 2006/24)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 06.12.2004 KR 20040101950 (71) Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE Daejeon 305-350 (KR)	(72) Inventors: KIM, Dong-Hoi Samhwan Apt. 107-1303 Seoul 150-782 (KR) SONG, Pyeong-Jung Expo Apt. 403-1002 Daejeon-city 305-762 (KR) NAM, Sang-Woo Hanvit Apt. 132-1404 Daejeon-city 305-755 (KR) (74) Representative: Esslinger, Alexander  Betten & Resch Patentanwälte Theatinerstrasse 8 80333 München 80333 München (DE)