(19)

(11)

EP 1 062 838 A1

(12)

(43) Date of publication: 27.12.2000 Bulletin 2000/52 (21) Application number: 99909462.6 (22) Date of filing: 12.03.1999

(51) International Patent Classification (IPC)7: H04R 1/34 // H04M1:19 (86) International application number: PCT/SE9900/390 (87) International publication number: WO 9949/697 (30.09.1999 Gazette 1999/39)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 12.03.1998 SE 9800850 (71) Applicant: ULLMAN, Johan S-412 55 Göteborg (SE)	(72) Inventor: ULLMAN, Johan S-412 55 Göteborg (SE) (74) Representative: Hammond, Andrew David  Göteborgs Patentbyra Dahls AB,Sjöporten 4 417 64 Göteborg 417 64 Göteborg (SE)