(19)

(11)

EP 1 459 198 A1

(12)

(43) Date of publication: 22.09.2004 Bulletin 2004/39 (21) Application number: 02773664.4 (22) Date of filing: 27.09.2002

(51) International Patent Classification (IPC)7: G06F 15/16 (86) International application number: PCT/US2002/031021 (87) International publication number: WO 2003/058476 (17.07.2003 Gazette 2003/29)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 27.12.2001 US 40869 (71) Applicant: Infocus Corporation Willsonville, OR 97070 (US)	(72) Inventors: TRAN, De Portland, OR 97220 (US) THOMPSON, Kevin Salem, OR 97302 (US) MURTHA, Steve Portland, OR 97219 (US) (74) Representative: Harrison Goddard Foote  Belgrave HallBelgrave Street Leeds LS2 8DD Leeds LS2 8DD (GB)