(19)

(11)

EP 0 947 120 A1

(12)

(43) Date of publication: 06.10.1999 Bulletin 1999/40 (21) Application number: 97914020.0 (22) Date of filing: 02.04.1997

(51) International Patent Classification (IPC):  H04R 1/ 28( . ) (86) International application number: PCT/CA1997/000215 (87) International publication number: WO 1998/024268 (04.06.1998 Gazette 1998/22)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 25.11.1996 CA 19962191147 (71) Applicant: Excel Sound & Art Magog, Quebec J1X 3W4 (CA)	(72) Inventor: LEDOUX, Patrice Omerville, Quebec J1X 3W5 (CA) (74) Representative: Maury, Richard Philip, et al  Sommerville & Rushton, 45 Grosvenor Road St. Albans, Herts AL1 3AW St. Albans, Herts AL1 3AW (GB)