(19)
(11) EP 1 057 259 A1

(12)

(43) Date of publication:
06.12.2000 Bulletin 2000/49

(21) Application number: 99973514.5

(22) Date of filing: 10.11.1999
(51) International Patent Classification (IPC)7H03H 21/00
(86) International application number:
PCT/CA9901/068
(87) International publication number:
WO 0038/319 (29.06.2000 Gazette 2000/26)
(84) Designated Contracting States:
DE FR GB
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 22.12.1998 US 218428
16.07.1999 US 356041

(71) Applicant: Nortel Networks Limited
Montreal,Quebec H2Y 3Y4 (CA)

(72) Inventor:
  • DING, Heping
    Kanata, Ontario K2L 1N6 (CA)

(74) Representative: Coyle, Philip Aidan et al
F. R. KELLY & CO.27 Clyde RoadBallsbridge
Dublin 4
Dublin 4 (IE)

   


(54) STABLE ADAPTIVE FILTER AND METHOD