(19)

(11)

EP 1 163 800 A1

(12)

(43) Date of publication: 19.12.2001 Bulletin 2001/51 (21) Application number: 00912762.2 (22) Date of filing: 22.03.2000

(51) International Patent Classification (IPC)7: H04N 7/26 (86) International application number: PCT/GB0001/081 (87) International publication number: WO 0057/649 (28.09.2000 Gazette 2000/39)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 22.03.1999 GB 9906603 (71) Applicant: Imagination Technologies Limited Kings Langley, Hertfordshire WD4 8LZ (GB)	(72) Inventor: Hodgson, Julian Hertfordshire WD4 8LZ (GB) (74) Representative: Robson, Aidan John et al Reddie & Grose 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)