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(11)

EP 2 420 001 A2

(12)

(88) Date of publication A3: 28.04.2011 (43) Date of publication: 22.02.2012 Bulletin 2012/08 (21) Application number: 10717345.2 (22) Date of filing: 15.04.2010

(51) International Patent Classification (IPC):  H03M 7/30(2006.01) H04J 1/00(2006.01) H04L 1/00(2006.01) H04B 15/00(2006.01) (86) International application number: PCT/US2010/031270 (87) International publication number: WO 2010/121050 (21.10.2010 Gazette 2010/42)

(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: 15.04.2009 US 169596 P (71) Applicant: Research In Motion Limited Waterloo, ON N2L 3W8 (CA)	(72) Inventors: SEXTON, Thomas Aloysuis Fort Worth Texas 76137 (US) SIMMONS, Sean Bartholomew Waterloo Ontario N2T 1E7 (CA) LUSINA, Paul James Vancouver British Columbia V0P 1H0 (CA) WOMACK, James Earl Bedford Texas 76022 (US) (74) Representative: Noble, Nicholas et al Kilburn & Strode LLP 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)