(19)

(11)

EP 2 719 151 A2

(12)

(88) Date of publication A3: 21.03.2013 (43) Date of publication: 16.04.2014 Bulletin 2014/16 (21) Application number: 12723536.4 (22) Date of filing: 20.04.2012

(51) International Patent Classification (IPC):  H04L 29/08(2006.01) (86) International application number: PCT/PT2012/000016 (87) International publication number: WO 2012/144919 (26.10.2012 Gazette 2012/43)

(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: 20.04.2011 US 201161477579 P (71) Applicant: IBT Internet Bussiness Technologies - Informática, S.A. 2675-623 Odivelas (PT)	(72) Inventor: DA SILVA PEREIRA NASCIMENTO PARREIRA, André Tomás Belas (PT) (74) Representative: Arnaut, José Luis  Rui Pena Arnaut & Associados Rua Sousa Martins, 10 1050-218 Lisboa 1050-218 Lisboa (PT)