(19)

(11)

EP 2 795 846 A1

(12)

(43) Date of publication: 29.10.2014 Bulletin 2014/44 (21) Application number: 12823022.4 (22) Date of filing: 20.12.2012

(51) International Patent Classification (IPC):  H04L 12/28(2006.01) H04L 29/08(2006.01) (86) International application number: PCT/IB2012/057510 (87) International publication number: WO 2013/093821 (27.06.2013 Gazette 2013/26)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 22.12.2011 US 201161578911 P (71) Applicant: Koninklijke Philips N.V. 5656 AE Eindhoven (NL)	(72) Inventor: DE BUYSSCHER, Yve NL-5656 AE Eindhoven (NL) (74) Representative: Jones Day  Rechtsanwälte, Attorneys-at-Law, Patentanwälte Prinzregentenstrasse 11 80538 München 80538 München (DE)