(19)

(11)

EP 1 010 094 A1

(12)

(43) Date of publication: 21.06.2000 Bulletin 2000/25 (21) Application number: 98941143.4 (22) Date of filing: 03.09.1998

(51) International Patent Classification (IPC)7: G06F 15/18 (86) International application number: PCT/AU9800/715 (87) International publication number: WO 9912/118 (11.03.1999 Gazette 1999/10)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 03.09.1997 AU PO892197 31.12.1997 AU PP119297 (71) Applicants: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION Chatswood, NSW 2067 (AU) MONASH UNIVERSITY Clayton, VIC 3168 (AU)	(72) Inventors: WINKLER, David Alan Belgrave,, VIC 3160 (AU) BURDEN, Frank, Robert Blackburn South, VIC 3130 (AU) (74) Representative: Haley, Stephen  Gill Jennings & Every,Broadgate House,7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)