(19)

(11)

EP 1 275 085 A1

(12)

(43) Date of publication: 15.01.2003 Bulletin 2003/03 (21) Application number: 00917229.7 (22) Date of filing: 20.04.2000

(51) International Patent Classification (IPC)7: G06T 1/00 (86) International application number: PCT/IB0000/494 (87) International publication number: WO 0108/2226 (01.11.2001 Gazette 2001/44)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (71) Applicant: Digital Copyright Technologies AG 8004 Zürich (CH)	(72) Inventors: PEREIRA, Shelby CH-1205 Geneva 4 (CH) VOLSHYNOVSKIY, Sviatoslav CH-1205 Geneva 4 (CH) PUN, Thierry CH-1224 Chêne-Bougeries (CH) (74) Representative: Blum, Rudolf Emil Ernst  c/o E. Blum & CoPatentanwälteVorderberg 11 8044 Zürich 8044 Zürich (CH)