(19)

(11)

EP 1 203 348 A2

(12)

(88) Date of publication A3: 03.05.2001 (43) Date of publication: 08.05.2002 Bulletin 2002/19 (21) Application number: 00939795.1 (22) Date of filing: 13.06.2000

(51) International Patent Classification (IPC)7: G06T 1/00 (86) International application number: PCT/US0016/099 (87) International publication number: WO 0078/032 (21.12.2000 Gazette 2000/51)

(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 (30) Priority: 15.06.1999 US 139758 P (71) Applicant: The Escher Group, Ltd. Cambridge, MA 02142 (US)	(72) Inventor: SMITH, Joshua, R. Cambridge, MA 02139 (US) (74) Representative: Rupprecht, Kay, Dipl.-Ing. et al Meissner, Bolte & PartnerPostfach 86 06 24 81633 München 81633 München (DE)