(19)

(11)

EP 1 031 209 A1

(12)

(43) Date of publication: 30.08.2000 Bulletin 2000/35 (21) Application number: 98952859.1 (22) Date of filing: 05.11.1998

(51) International Patent Classification (IPC)7: H04L 12/26, H04L 12/413, B60R 16/02 (86) International application number: PCT/GB9803/316 (87) International publication number: WO 9925/097 (20.05.1999 Gazette 1999/20)

(84) Designated Contracting States: DE ES FR GB IT NL (30) Priority: 08.11.1997 GB 9723557 (71) Applicant: UNIVERSITY OF WARWICK Coventry,Warwickshire CV4 7AL (GB)	(72) Inventors: MCLAUGHLIN, Richard, Thomas Warwick CV34 5JH (GB) TANG, Kiah, HionWarwick Manufacturing Group Int. Coventry CV4 7AL (GB) (74) Representative: Harding, Richard Patrick et al Marks & Clerk,4220 Nash Court,Oxford Business Park South Oxford OX4 2RU Oxford OX4 2RU (GB)