(19)

(11)

EP 1 254 413 A2

(12)

(88) Date of publication A3: 13.06.2002 (43) Date of publication: 06.11.2002 Bulletin 2002/45 (21) Application number: 01902550.1 (22) Date of filing: 02.02.2001

(51) International Patent Classification (IPC)7: G06F 17/30 (86) International application number: PCT/GB0100/446 (87) International publication number: WO 0105/7725 (09.08.2001 Gazette 2001/32)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 03.02.2000 US 179934 P (71) Applicant: Navigateone Limited London EC2Y 5DA (GB)	(72) Inventor: PARRATT, Richard David Hindhead,Surrey GU26 6DG (GB) (74) Representative: Vleck, Jan Montagu  Reddie & Grose,16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)