(19)

(11)

EP 1 256 059 A2

(12)

(88) Date of publication A3: 18.04.2002 (43) Date of publication: 13.11.2002 Bulletin 2002/46 (21) Application number: 01949043.2 (22) Date of filing: 22.01.2001

(51) International Patent Classification (IPC)7: G06F 9/50 (86) International application number: PCT/US0102/096 (87) International publication number: WO 0105/7665 (09.08.2001 Gazette 2001/32)

(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: 07.02.2000 US 180587 P 08.06.2000 US 592486 (71) Applicant: Epicrealm Operating Inc. Richardson, TX 75080 (US)	(72) Inventors: LOWERY, Keith, A. Richardson, TX 75081 (US) DAVIDSON, David, K. Dallas, TX 75231 (US) SAXENA, Avinash, C. Plano, TX 75025 (US) (74) Representative: Lawrence, John  Barker Brettell 138 Hagley RoadEdgbaston Birmingham B16 9PW Birmingham B16 9PW (GB)