(19)

(11)

EP 0 629 335 A1

(12)

(43) Date of publication: 21.12.1994 Bulletin 1994/51 (21) Application number: 93904278.0 (22) Date of filing: 02.03.1993

(51) International Patent Classification (IPC):  H04S 3/ 02( . ) (86) International application number: PCT/GB1993/000429 (87) International publication number: WO 1993/018630 (16.09.1993 Gazette 1993/22)

(84) Designated Contracting States: DE FR GB NL (30) Priority: 02.03.1992 GB 19920004485 (71) Applicant: TRIFIELD PRODUCTIONS LTD. London N7 9AH (GB)	(72) Inventors: GERZON, Michael, Anthony Oxford OX2 6DJ (GB) BARTON, Geoffrey James Barnet, Herts EN5 4AY (GB) (74) Representative: Wells, David  Gill Jennings & Every, Broadgate House, 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)