(19)

(11)

EP 1 080 439 A1

(12)

(43) Date of publication: 07.03.2001 Bulletin 2001/10 (21) Application number: 99923750.6 (22) Date of filing: 21.05.1999

(51) International Patent Classification (IPC)7: G06F 17/60 (86) International application number: PCT/GB9901/614 (87) International publication number: WO 9962/012 (02.12.1999 Gazette 1999/48)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 22.05.1998 EP 98304090 (71) Applicant: CAMBRIDGE CONSULTANTS LIMITED Cambridge CB4 4DW (GB)	(72) Inventors: SMITH, Ronald, William Cambridge CB1 3PQ (GB) MARTIN, Sean, Christopher Cambridge CB4 3BY (GB) (74) Representative: Dixon, Philip Matthew et al Frank B. Dehn & Co.179 Queen Victoria Street London EC4V 4EL London EC4V 4EL (GB)