(19)

(11)

EP 1 224 610 A1

(12)

(43) Date of publication: 24.07.2002 Bulletin 2002/30 (21) Application number: 00964531.8 (22) Date of filing: 05.10.2000

(51) International Patent Classification (IPC)7: G06K 9/20 (86) International application number: PCT/GB0003/839 (87) International publication number: WO 0127/865 (19.04.2001 Gazette 2001/16)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 08.10.1999 EP 99307971 (71) Applicant: BRITISH TELECOMMUNICATIONS public limited company London EC1A 7AJ (GB)	(72) Inventor: PAWLESKI, Mark Ipswich,Suffolk IP9 2QY (GB) (74) Representative: Lloyd, Barry George William  BT Group Legal Services,Intellectual Property Department,8th Floor, Holborn Centre,120 Holborn London EC1N 2TE London EC1N 2TE (GB)