(19)

(11)

EP 0 890 161 A1

(12)

(43) Date of publication: 13.01.1999 Bulletin 1999/02 (21) Application number: 97913985.0 (22) Date of filing: 27.03.1997

(51) International Patent Classification (IPC):  G08G 5/ 00( . ) G01S 17/ 89( . ) G06T 7/ 20( . ) G01S 7/ 48( . ) B64F 1/ 00( . ) G06K 9/ 32( . ) G08G 5/ 06( . ) (86) International application number: PCT/AU1997/000198 (87) International publication number: WO 1997/037336 (09.10.1997 Gazette 1997/43)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 29.03.1996 AU 1996PN09032 (71) Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION Campbell, ACT 2601 (AU)	(72) Inventors: AUTY, Glen, William Montmorency, VIC 3094 (AU) BEST, Michael, John Box Hill, VIC 3128 (AU) DAVIS, Timothy, John Ivanhoe, VIC 3079 (AU) DREIER, Ashley, John Epping, VIC 3076 (AU) MACINTYRE, Ian, Barry Rosanna, VIC 3084 (AU) (74) Representative: Brunner, Michael John  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)