(19)

(11)

EP 1 971 925 A2

(12)

(88) Date of publication A3: 24.04.2008 (43) Date of publication: 24.09.2008 Bulletin 2008/39 (21) Application number: 06846672.1 (22) Date of filing: 19.12.2006

(51) International Patent Classification (IPC):  G06F 13/28(2006.01) (86) International application number: PCT/US2006/062277 (87) International publication number: WO 2007/076340 (05.07.2007 Gazette 2007/27)

(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 LV MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 23.12.2005 EP 05927886 07.11.2006 US 557298 (71) Applicant: Texas Instruments Incorporated Dallas, Texas 75265-5474 (US)	(72) Inventor: CONTI, Gregory R. F-06570 Saint Paul (FR) (74) Representative: Holt, Michael  Texas Instruments Limited European Patents Department 800 Pavilion Drive Northampton NN4 7YL 800 Pavilion Drive Northampton NN4 7YL (GB)