(19)

(11)

EP 1 275 058 A1

(12)

(43) Date of publication: 15.01.2003 Bulletin 2003/03 (21) Application number: 01923811.2 (22) Date of filing: 18.04.2001

(51) International Patent Classification (IPC)7: G06F 17/00 (86) International application number: PCT/GB0101/764 (87) International publication number: WO 0108/0046 (25.10.2001 Gazette 2001/43)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 19.04.2000 GB 0009747 (71) Applicant: Bitstop Limited London EC1A 9JR (GB)	(72) Inventors: TONG, Andrew, Ming, Wei London EC1A 9JR (GB) MARINESCU, Joseph, Sever London EC1A 9JR (GB) (74) Representative: Flint, Adam  W.H. Beck, Greener & Co.,7 Stone Buildings,Lincoln's Inn London WC2A 3SZ London WC2A 3SZ (GB)