A MULTISTAGE NONLINEAR ECHO-CANCELLER FOR DIGITAL COMMUNICATION SYSTEMS WITH OR WITHOUT FREQUENCY DIVISION MULTIPLEXING - Patent 1556963

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EP 1 556 963 A1

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(43)	Date of publication:
	27.07.2005 Bulletin 2005/30

(21)	Application number: 03736916.2

(22)	Date of filing: 06.06.2003

(51)	International Patent Classification (IPC)⁷: H04B 3/23

(86)	International application number:
	PCT/US2003/017973

(87)	International publication number:
	WO 2004/042951 (21.05.2004 Gazette 2004/21)

(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

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Priority:

30.10.2002 US 422655 P

(71)	Applicant: Chaos Telecom, Inc.
	San Diego, CA 92121 (US)

(72)	Inventor:
	BRAYNT, Paul, H. Encinitas, CA 92024 (US)

(74)	Representative: Hanna, Peter William Derek
	Hanna, Moore & Curley11 Mespil Road Dublin 4 Dublin 4 (IE)

(54)	A MULTISTAGE NONLINEAR ECHO-CANCELLER FOR DIGITAL COMMUNICATION SYSTEMS WITH OR WITHOUT FREQUENCY DIVISION MULTIPLEXING