(19)

(11)

EP 1 712 062 A1

(12)

(43) Date of publication: 18.10.2006 Bulletin 2006/42 (21) Application number: 05702677.5 (22) Date of filing: 14.01.2005

(51) International Patent Classification (IPC):  H04L 29/06(2006.01) H04L 12/28(2006.01) H04L 12/56(2006.01) (86) International application number: PCT/IB2005/050167 (87) International publication number: WO 2005/071922 (04.08.2005 Gazette 2005/31)

(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 MC NL PL PT RO SE SI SK TR (30) Priority: 23.01.2004 EP 04100230 (71) Applicants: Philips Intellectual Property & Standards GmbH 20099 Hamburg (DE) DE  Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL) AT BE BG CH CY CZ DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC	(72) Inventors: SCHREYER, Oliver Weisshausstr. 2, 52066 Aachen (DE) BUDDE, Wolfgang Weisshausstr. 2, 52066 Aachen (DE) ERDMANN, Bozena Weisshausstr. 2, 52066 Aachen (DE) (74) Representative: Volmer, Georg  Philips Intellectual Property & Standards GmbH, Postfach 50 04 42 52088 Aachen 52088 Aachen (DE)