(19)
(11)
EP 0 697 149 A1
(12)
(43)
Date of publication:
21.02.1996
Bulletin 1996/08
(21)
Application number:
93909299.0
(22)
Date of filing:
09.04.1993
(51)
International Patent Classification (IPC):
G10K
11/
178
( . )
(86)
International application number:
PCT/US1993/003354
(87)
International publication number:
WO 1993/021688
(
28.10.1993
Gazette 1993/26)
(84)
Designated Contracting States:
DE FR GB IT NL
(30)
Priority:
10.04.1992
US 19920866918
(71)
Applicant:
ACTIVE NOISE AND VIBRATION TECHNOLOGIES INC.
Phoenix, AZ 85040 (US)
(72)
Inventor:
CHAIT, Jaime, I.
Chandler, AZ 85224 (US)
(74)
Representative:
Cozens, Paul Dennis, et al
Mathys & Squire 100 Grays Inn Road
London WC1X 8AL
London WC1X 8AL (GB)
(54)
ACTIVE CANCELLATION OF NOISE OR VIBRATIONS