(19)

(11)

EP 2 359 245 A1

(12)

(43) Date of publication: 24.08.2011 Bulletin 2011/34 (21) Application number: 09797220.2 (22) Date of filing: 17.11.2009

(51) International Patent Classification (IPC):  G06F 11/10(2006.01) H04L 12/24(2006.01) G06F 21/00(2006.01) H04L 29/08(2006.01) (86) International application number: PCT/US2009/064800 (87) International publication number: WO 2010/057186 (20.05.2010 Gazette 2010/20)

(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 MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 17.12.2008 US 336558 17.11.2008 US 272012 (71) Applicant: Unisys Corporation Blue Bell, PA 19424-0001 (US)	(72) Inventor: DODGSON, David Lansdale PA 19446 (US) (74) Representative: Harrison Goddard Foote  Belgrave Hall Belgrave Street Leeds LS2 8DD Leeds LS2 8DD (GB)