(19)

(11)

EP 1 269 461 A1

(12)

(43) Date of publication: 02.01.2003 Bulletin 2003/01 (21) Application number: 01956199.2 (22) Date of filing: 23.01.2001

(51) International Patent Classification (IPC)7: G10K 9/128, B06B 1/08, H04R 15/00 (86) International application number: PCT/SE0100/091 (87) International publication number: WO 0106/7432 (13.09.2001 Gazette 2001/37)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 10.03.2000 SE 0000826 (71) Applicant: Cetus Innovation AB 721 05 Västeraas (SE)	(72) Inventor: ENGDAHL, Göran S-183 63 Täby (SE) (74) Representative: Reyier, Ann-Mari et al Bjerkéns Patentbyra KB,Box 128 721 05 Västeras 721 05 Västeras (SE)