(19)

(11)

EP 1 344 174 A2

(12)

(88) Date of publication A3: 07.11.2002 (43) Date of publication: 17.09.2003 Bulletin 2003/38 (21) Application number: 01998921.9 (22) Date of filing: 30.11.2001

(51) International Patent Classification (IPC)7: G06F 17/60 (86) International application number: PCT/GB0105/324 (87) International publication number: WO 0204/4964 (06.06.2002 Gazette 2002/23)

(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: 30.11.2000 GB 0029287 (71) Applicant: Ebbon-Dacs Limited Oxford OX2 9QY (GB)	(72) Inventors: PILKINGTON, Robert Mark Oxford OX5 3AA (GB) EDWARDS, Paul Abingdon OX14 3PQ (GB) (74) Representative: Ahmad, Sheikh Shakeel et al David Keltie AssociatesFleet Place House2 Fleet Place London EC4M 7ET London EC4M 7ET (GB)