(19)

(11)

EP 1 568 174 A1

(12)

(43) Date of publication: 31.08.2005 Bulletin 2005/35 (21) Application number: 02794011.3 (22) Date of filing: 26.11.2002

(51) International Patent Classification (IPC)7: H04L 12/28 (86) International application number: PCT/US2002/037725 (87) International publication number: WO 2004/049637 (10.06.2004 Gazette 2004/24)

(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 (71) Applicant: Digital Envoy, Inc. Norcross, Georgia 30092 (US)	(72) Inventors: FRIEDMAN, Robert Decatur, GA 30033 (US) PAREKH, Sanjay Duluth, GA 30096 (US) LUTCH, Benjamin Mountain View, CA 94040 (US) (74) Representative: Hebing, Norbert  Patentanwalt, Frankfurter Strasse 34 61231 Bad Nauheim 61231 Bad Nauheim (DE)