(19)

(11)

EP 0 953 237 A1

(12)

(43) Date of publication: 03.11.1999 Bulletin 1999/44 (21) Application number: 97902523.0 (22) Date of filing: 19.02.1997

(51) International Patent Classification (IPC):  H04B 11/ 00( . ) (86) International application number: PCT/IB1997/000144 (87) International publication number: WO 1997/031437 (28.08.1997 Gazette 1997/37)

(84) Designated Contracting States: BE DE ES FR GB IT SE (30) Priority: 20.02.1996 US 19960603413 28.05.1996 US 19960653899 (71) Applicant: Sonic Systems Vancouver, British Columbia V6T 1Z3 (CA)	(72) Inventors: McCONNELL, Peter, Robert, Henderson Burnaby, British Columbia V5E 2S2 (CA) STRAGG, Robert, Allan Vancouver, British Columbia V6M 3R6 (CA) (74) Representative: DIEHL GLAESER HILTL & PARTNER  Patentanwälte Augustenstrasse 46 80333 München 80333 München (DE)