(19)

(11)

EP 0 956 529 A1

(12)

(43) Date of publication: 17.11.1999 Bulletin 1999/46 (21) Application number: 97946964.0 (22) Date of filing: 10.12.1997

(51) International Patent Classification (IPC):  G06F 15/ 16( . ) G06F 9/ 46( . ) G06F 9/ 44( . ) G06F 12/ 00( . ) (86) International application number: PCT/AU1997/000840 (87) International publication number: WO 1998/026355 (18.06.1998 Gazette 1998/24)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV RO SI (30) Priority: 12.12.1996 AU 1996PO04188 (71) Applicant: Quantum Networks Pty. Ltd Artarmon, NSW 2064 (AU)	(72) Inventor: BROCKHURST, Russell Artarmon, NSW 2064 (AU) (74) Representative: Brunner, Michael John  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)