(19)

(11)

EP 1 200 921 A2

(12)

(88) Date of publication A3: 12.06.2001 (43) Date of publication: 02.05.2002 Bulletin 2002/18 (21) Application number: 00950538.9 (22) Date of filing: 21.07.2000

(51) International Patent Classification (IPC)7: G06F 17/60 (86) International application number: PCT/US0019/949 (87) International publication number: WO 0108/068 (06.12.2001 Gazette 2001/05)

(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: 23.07.1999 US 145323 P 21.07.2000 US 620748 (71) Applicant: Clareon Corporation Portland, ME 04101 (US)

(72) Inventors: JAFFE, Frank, A. Sharon, MA 02067 (US) STROLL, David Boston, MA 02110 (US) BARRAND, Katherine, A. Beverly, MA 01915 (US) GABRIELSON, William, R. Sharon, MA 02067 (US) GRANT, Patrick, J. East Walpole, MA 02032 (US) COVEN, Linda, S. Boston, MA 02115 (US) (74) Representative: Exell, Jonathan Mark  Elkington & FifeProspect House8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)