(19)

(11)

EP 1 673 938 A2

(12)

(43) Date of publication: 28.06.2006 Bulletin 2006/26 (21) Application number: 04791680.4 (22) Date of filing: 11.10.2004

(51) International Patent Classification (IPC):  H04N 7/18(1968.09) (86) International application number: PCT/IB2004/003304 (87) International publication number: WO 2005/036881 (21.04.2005 Gazette 2005/16)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR Designated Extension States: AL HR LT LV MK (30) Priority: 09.10.2003 ZA 200307897 (71) Applicant: DE BEERS CONSOLIDATED MINES LIMITED 8301 Kimberley (ZA)	(72) Inventors: COX, Gregory Kirkland, Washington 98034 (US) ANDREW, Colin 2156 Randpark Ridge X74 (ZA) (74) Representative: Illingworth-Law, William Illingworth  D Young & Co 120 Holborn London EC1N 2DY London EC1N 2DY (GB)