(19)

(11)

EP 2 044 500 A1

(12)

(43) Date of publication: 08.04.2009 Bulletin 2009/15 (21) Application number: 07766169.2 (22) Date of filing: 06.07.2007

(51) International Patent Classification (IPC):  G06F 1/20(2006.01) (86) International application number: PCT/GB2007/002534 (87) International publication number: WO 2008/003981 (10.01.2008 Gazette 2008/02)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 07.07.2006 GB 0613581 (71) Applicant: Trox Aitcs Limited Thetford Norfolk IP24 3SQ (GB)	(72) Inventors: LEATHERBARROW, David Redgrave Diss Suffolk IP22 1RW (GB) HUTCHINS, Guy Bury St Edmunds Suffolk IP32 7JL (GB) (74) Representative: Murray, Elisabeth Anne et al Mathys & Squire LLP 120 Holborn London EC1N 2SQ London EC1N 2SQ (GB)