(19)

(11)

EP 2 191 625 A2

(12)

(88) Date of publication A3: 22.05.2009 (43) Date of publication: 02.06.2010 Bulletin 2010/22 (21) Application number: 08793657.1 (22) Date of filing: 03.09.2008

(51) International Patent Classification (IPC):  H04L 27/00(2006.01) (86) International application number: PCT/KR2008/005172 (87) International publication number: WO 2009/031805 (12.03.2009 Gazette 2009/11)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 05.09.2007 US 970253 P (71) Applicant: LG Electronics Inc. Seoul 150-721 (KR)	(72) Inventors: KO, Woo Suk Seoul 137-724 (KR) MOON, Sang Chul Seoul 137-724 (KR) (74) Representative: Cabinet Plasseraud  52, rue de la Victoire 75440 Paris Cedex 09 75440 Paris Cedex 09 (FR)