(19)

(11)

EP 1 759 477 A2

(12)

(88) Date of publication A3: 02.02.2006 (43) Date of publication: 07.03.2007 Bulletin 2007/10 (21) Application number: 05747258.1 (22) Date of filing: 02.06.2005

(51) International Patent Classification (IPC):  H04L 9/00(2006.01) (86) International application number: PCT/IL2005/000580 (87) International publication number: WO 2005/125072 (29.12.2005 Gazette 2005/52)

(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: 22.06.2004 US 582114 P (71) Applicant: NDS LIMITED West Drayton, Middlesex UB7 0BQ (GB)	(72) Inventors: BOGOT, Carmi 98420 Maaleh Adumim (IL) SOLOW, Hillel 99543 Beit Shemesh (IL) (74) Representative: White, Duncan Rohan  Marks & Clerk 90 Long Acre London WC2E 9RA London WC2E 9RA (GB)