(19)

(11)

EP 1 665 073 A2

(12)

(88) Date of publication A3: 14.04.2005 (43) Date of publication: 07.06.2006 Bulletin 2006/23 (21) Application number: 04711093.7 (22) Date of filing: 13.02.2004

(51) International Patent Classification (IPC):  G06F 17/00(1995.01) (86) International application number: PCT/US2004/004127 (87) International publication number: WO 2004/074997 (02.09.2004 Gazette 2004/36)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR (30) Priority: 14.02.2003 US 447844 P (71) Applicants: Lightspace Corporation Cambridge, MA 02140 (US) Hoch, David J. Watertown, MA 02472 (US) Lang, Andrew Kennedy Wellesley, MA 02481 (US)	(72) Inventors: HOCH, David Watertown, MA 02472 (US) LANG, Andrew, Kennedy Wellesley, MA 02481 (US) (74) Representative: Cookson, Barbara Elizabeth  Filemot Technology Law Ltd. 25 Southampton Buildings London WC2A 1AL London WC2A 1AL (GB)