(19)

(11)

EP 0 189 399 A1

(12)

(43) Date of publication: 06.08.1986 Bulletin 1986/32 (21) Application number: 84902932.0 (22) Date of filing: 06.08.1984

(51) International Patent Classification (IPC):  H04N 5/ 445( . ) H04N 9/ 64( . ) (86) International application number: PCT/GB1984/000271 (87) International publication number: WO 1986/001359 (27.02.1986 Gazette 1986/05)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (71) Applicant: PRUTEC LIMITED London EC1N 2NH (GB)	(72) Inventor: LEWIS, Creighton, Martin, Cecil Usk Gwent NP5 1TG (GB)