(19)

(11)

EP 0 208 722 A1

(12)

(43) Date of publication: 21.01.1987 Bulletin 1987/04 (21) Application number: 86900590.0 (22) Date of filing: 07.01.1986

(51) International Patent Classification (IPC):  H04N 7/ 18( . ) (86) International application number: PCT/AU1986/000003 (87) International publication number: WO 1986/004204 (17.07.1986 Gazette 1986/17)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 07.01.1985 AU 19860000087 (71) Applicant: TECH-21 PTY LIMITED Noranda, W.A. 6062 (AU)	(72) Inventor: HONEY, Frank, Ross Noranda, W.A. 6062 (AU)