(19)

(11)

EP 1 774 657 A2

(12)

(88) Date of publication A3: 16.02.2006 (43) Date of publication: 18.04.2007 Bulletin 2007/16 (21) Application number: 05776097.7 (22) Date of filing: 03.06.2005

(51) International Patent Classification (IPC):  H03M 7/30(2006.01) (86) International application number: PCT/EP2005/005994 (87) International publication number: WO 2005/119920 (15.12.2005 Gazette 2005/50)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 04.06.2004 US 577386 P 02.06.2005 US 143157 (71) Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ) 164 83 Stockholm (SE)	(72) Inventor: DENT, Paul, Wilkinson Pittsboro, NC 27312 (US) (74) Representative: Bratt, Hanna Catharina  Ericsson AB Patent Unit Mobile Platforms 221 83 Lund 221 83 Lund (SE)