(19)

(11)

EP 0 651 932 A1

(12)

(43) Date of publication: 10.05.1995 Bulletin 1995/19 (21) Application number: 93915546.0 (22) Date of filing: 21.07.1993

(51) International Patent Classification (IPC):  H04N 7/ 12( . ) H04N 7/ 46( . ) H04N 7/ 26( . ) (86) International application number: PCT/AU1993/000368 (87) International publication number: WO 1994/003013 (03.02.1994 Gazette 1994/04)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 21.07.1992 AU 1992PL03726 (71) Applicant: DR. SALA AND ASSOCIATES PTY. LTD. Bentley, W.A. 6102 (AU)	(72) Inventor: SALA, Amedeo, Filiberto Dianella, W.A. 6062 (AU) (74) Representative: Lyons, Andrew John, et al  ROYSTONS Tower Building Water Street Liverpool L3 1BA Liverpool L3 1BA (GB)