(19)

(11)

EP 0 672 326 A1

(12)

(43) Date of publication: 20.09.1995 Bulletin 1995/38 (21) Application number: 94927757.0 (22) Date of filing: 30.09.1994

(51) International Patent Classification (IPC):  H04N 5/ 50( . ) H04N 7/ 10( . ) H04N 7/ 025( . ) (86) International application number: PCT/GB1994/002133 (87) International publication number: WO 1995/010156 (13.04.1995 Gazette 1995/16)

(84) Designated Contracting States: AT BE CH DE DK ES FR IE IT LI NL PT SE (30) Priority: 02.10.1993 GB 19930020367 07.12.1993 GB 19930025066 14.03.1994 GB 19940004873 (71) Applicant: AMULET ELECTRONICS LIMITED Bovey Tracey, Devon, TQ13 9DS (GB)	(72) Inventor: MULLETT, Anthony, John Devon TQ13 9DS (GB) (74) Representative: Craske, Stephen Allan  Craske & Co. Patent Law Chambers 15 Queens Terrace Exeter South Devon EX4 4HJ Exeter South Devon EX4 4HJ (GB)