(19)

(11)

EP 0 113 780 A1

(12)

(43) Date of publication: 25.07.1984 Bulletin 1984/30 (21) Application number: 83902612.0 (22) Date of filing: 21.07.1983

(51) International Patent Classification (IPC):  H04R 5/ 04( . ) H04S 5/ 00( . ) (86) International application number: PCT/US1983/001123 (87) International publication number: WO 1984/000661 (16.02.1984 Gazette 1984/05)

(84) Designated Contracting States: FR (30) Priority: 22.07.1982 US 19820400631 (71) Applicant: TVi SYSTEMS, LTD Los Angeles, CA 90010 (US)	(72) Inventor: BEDINI, John, C. Sylmar, CA 91342 (US) (74) Representative: Martin, Jean-Jacques  Cabinet REGIMBEAU 26, Avenue Kléber F-75116 Paris F-75116 Paris (FR)