(19)

(11)

EP 1 142 178 A2

(12)

(88) Date of publication A3: 25.05.2000 (43) Date of publication: 10.10.2001 Bulletin 2001/41 (21) Application number: 99948398.5 (22) Date of filing: 21.09.1999

(51) International Patent Classification (IPC)7: H04J 14/00, H04J 14/02, H04B 10/16, H04B 10/17, H04B 10/18 (86) International application number: PCT/US9922/009 (87) International publication number: WO 0018/047 (30.03.2000 Gazette 2000/13)

(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: 21.09.1998 US 101241 P (71) Applicant: CORNING INCORPORATED Corning, N.Y. 14831 (US)	(72) Inventors: DASILVA, Valeria, L. Hillsborough, NJ 08876 (US) ENNSER, Karin, M. Somerset,NJ 08873 (US) LIU, Yanming Horseheads, NY 14845 (US) LUCERO, Alan, J. E. Brunswick, NJ 08816 (US) TSUDA, Sergio N. Brunswick, NJ 08902 (US) (74) Representative: Boon, Graham Anthony  Elkington and Fife,Prospect House,8 Pembroke Road Sevenoaks,Kent TN13 1XR Sevenoaks,Kent TN13 1XR (GB)