USER SELECTABLE NOISE CANCELING FOR PORTABLE MICROPHONES - Patent 0614599

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EP 0 614 599 A1

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(43)	Date of publication:
	14.09.1994 Bulletin 1994/37

(21)	Application number: 92925202.0

(22)	Date of filing: 13.11.1992

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International Patent Classification (IPC):

H04R 1/ 00^{( . )}
H04R 1/ 38^{( . )}

H04R 1/ 28^{( . )}

(86)	International application number:
	PCT/US1992/009795

(87)	International publication number:
	WO 1993/010645 (27.05.1993 Gazette 1993/13)

(84)	Designated Contracting States:
	DE FR GB

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Priority:

18.11.1991 US 19910793966

(71)	Applicant: MOTOROLA, INC.
	Schaumburg, IL 60196 (US)

(72)	Inventors:
	BADIE, Mehrdad Sunrise, FL 33351 (US) WILLIAMS, William, R. North Lauderdale, FL 33068 (US)

(74)	Representative: Hudson, Peter David, et al
	Motorola European Intellectual Property Midpoint Alencon Link Basingstoke, Hampshire RG21 7PL Basingstoke, Hampshire RG21 7PL (GB)

(54)	USER SELECTABLE NOISE CANCELING FOR PORTABLE MICROPHONES