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(11)

EP 1 497 751 A1

(12)

(43) Date of publication: 19.01.2005 Bulletin 2005/03 (21) Application number: 03721540.7 (22) Date of filing: 07.04.2003

(51) International Patent Classification (IPC)7: G06F 17/27, G06F 17/20, G06F 17/30, G10L 15/00, G10L 13/00 (86) International application number: PCT/US2003/010482 (87) International publication number: WO 2003/088080 (23.10.2003 Gazette 2003/43)

(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 Designated Extension States: AL LT LV MK (30) Priority: 05.04.2002 US 307624 P 29.01.2003 US 443642 P 01.04.2003 US 402941 (71) Applicants: AT & T Corp. New York, NY 10013-2412 (US) Gorin, Allen Louis Berkeley Heights, NJ 07922 (US) Bechet, Frederic 84000 Avignon (FR) Wright, Jeremy Huntley Berkeley Heights, NJ 07922 (US) Hakkani-Tur, Dilek Z. Morris Plains, NJ 07950 (US)

(72) Inventors: GORIN, Allen, Louis Berkeley Heights, NJ 07922 (US) BECHET, Frederic F-84000 Avignon (FR) WRIGHT, Jeremy, Huntley Berkeley Heights, NJ 07922 (US) HAKKANI-TUR, Dilek, Z. Morris Plains, NJ 07950 (US) (74) Representative: Suckling, Andrew Michael  Marks & Clerk,4220 Nash Court,Oxford Business Park South Oxford,Oxfordshire OX4 2RU Oxford,Oxfordshire OX4 2RU (GB)