(19)

(11)

EP 1 208 413 A2

(12)

(88) Date of publication A3: 19.07.2001 (43) Date of publication: 29.05.2002 Bulletin 2002/22 (21) Application number: 00946954.5 (22) Date of filing: 30.06.2000

(51) International Patent Classification (IPC)7: G06F 1/00 (86) International application number: PCT/US0018/165 (87) International publication number: WO 0102/929 (11.01.2001 Gazette 2001/02)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL Designated Extension States: AL LT LV MK RO SI (30) Priority: 02.07.1999 US 142136 P (71) Applicant: Tellabs Operations, Inc. Lisle, IL 60532 (US)	(72) Inventors: CHANDRAN, Ravi South Bend, IN 46637 (US) MARCHOK, Daniel, J. Buchanan, MI 49107 (US) (74) Representative: Hitchcock, Esmond Antony et al Lloyd Wise, Tregear & Co.,Commonwealth House,1-19 New Oxford Street London WC1A 1LW London WC1A 1LW (GB)