(19)

(11)

EP 0 572 471 A1

(12)

(43) Date of publication: 08.12.1993 Bulletin 1993/49 (21) Application number: 92904972.0 (22) Date of filing: 19.02.1992

(51) International Patent Classification (IPC):  H04N 7/ 26( . ) H04N 13/ 00( . ) (86) International application number: PCT/GB1992/000292 (87) International publication number: WO 1992/015176 (03.09.1992 Gazette 1992/23)

(84) Designated Contracting States: DE FR GB (30) Priority: 21.02.1991 GB 19910036749 (71) Applicant: STREET, Graham Stewart Brandon Reading Berkshire RG7 2NU (GB)	(72) Inventor: STREET, Graham Stewart Brandon Reading Berkshire RG7 2NU (GB)