(19)

(11)

EP 2 329 615 A2

(12)

(88) Date of publication A3: 22.04.2010 (43) Date of publication: 08.06.2011 Bulletin 2011/23 (21) Application number: 09791393.3 (22) Date of filing: 11.08.2009

(51) International Patent Classification (IPC):  H04L 1/18(2006.01) H04L 1/16(2006.01) H04L 1/00(2006.01) H03M 13/11(2006.01) H03M 13/37(2006.01) (86) International application number: PCT/US2009/053468 (87) International publication number: WO 2010/019615 (18.02.2010 Gazette 2010/07)

(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 Designated Extension States: AL BA RS (30) Priority: 11.08.2008 US 87995 P 10.08.2009 US 538750 (71) Applicant: RESEARCH IN MOTION LIMITED Waterloo, Ontario N2L 3W8 (CA)	(72) Inventors: SIMMONS, Sean Waterloo ON N2L 3W8 (CA) JANHUNEN, Stefan, E. Waterloo ON N2L 3W8 (CA) FURBECK, David, S. Irving, TX 75039 (US) (74) Representative: Noble, Nicholas et al Kilburn & Strode LLP Electronics 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)