(19)

(11)

EP 1 000 318 A2

(12)

(88) Date of publication A3: 22.04.1999 (43) Date of publication: 17.05.2000 Bulletin 2000/20 (21) Application number: 98937633.0 (22) Date of filing: 31.07.1998

(51) International Patent Classification (IPC)7: G01B 11/24, G06T 7/00 (86) International application number: PCT/GB9802/307 (87) International publication number: WO 9906/950 (11.02.1999 Gazette 1999/06)

(84) Designated Contracting States: DE FR NL SE (30) Priority: 31.07.1997 GB 9716240 (71) Applicant: Tricorder Technology plc Harefield,Middlesex, UB9 6JA (GB)	(72) Inventors: FLOCKHART, Christopher Peter Devon EX19 8DJ (GB) FOWLER, Guy Richard John Beaconsfield,Buckinghamshire HP9 2LE (GB) (74) Representative: Doble, Richard George Vivian et al 38 Spring Street London W2 1JA London W2 1JA (GB)