(19)

(11)

EP 0 748 494 A1

(12)

(43) Date of publication: 18.12.1996 Bulletin 1996/51 (21) Application number: 94908234.0 (22) Date of filing: 04.03.1994

(51) International Patent Classification (IPC):  G08G( . ) G08G 1/ 087( . ) G10L 15/ 10( . ) G10L 21/ 02( . ) G01H 3/ 06( . ) G10L 15/ 00( . ) G10L 15/ 20( . ) (86) International application number: PCT/CA1994/000119 (87) International publication number: WO 1995/024028 (08.09.1995 Gazette 1995/38)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: SI (71) Applicant: SONIC SYSTEMS CORPORATION Vancouver, B.C. V6T 1Z3 (CA)	(72) Inventors: McCONNELL, Peter, Robert, Henderson Burnaby, British Columbia V5E 2S2 (CA) KAVANAUGH, Patricia Burnaby, British Columbia V5J 2P9 (CA) (74) Representative: Vidon, Patrice  Cabinet Patrice Vidon, Immeuble Germanium, 80, Avenue des Buttes-de-Coesmes 35700 Rennes 35700 Rennes (FR)