(19)

(11)

EP 1 444 672 A1

(12)

(43) Date of publication: 11.08.2004 Bulletin 2004/33 (21) Application number: 02801816.6 (22) Date of filing: 25.10.2002

(51) International Patent Classification (IPC)7: G08G 9/02, G08G 5/04, G08G 1/16, G01S 17/93 (86) International application number: PCT/AU2002/001451 (87) International publication number: WO 2003/036586 (01.05.2003 Gazette 2003/18)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 25.10.2001 AU PR848601 (71) Applicant: POROPAT, George Vladimir Petrie Terrace, Queensland 4000 (AU)	(72) Inventor: POROPAT, George Vladimir Petrie Terrace, Queensland 4000 (AU) (74) Representative: Sajda, Wolf E., Dipl.-Phys. et al MEISSNER, BOLTE & PARTNERPostfach 86 06 24 81633 München 81633 München (DE)