(19)

(11)

EP 1 303 810 A1

(12)

(43) Date of publication: 23.04.2003 Bulletin 2003/17 (21) Application number: 01954629.0 (22) Date of filing: 09.07.2001

(51) International Patent Classification (IPC)7: G06F 9/28, G06F 9/26 (86) International application number: PCT/US0121/642 (87) International publication number: WO 0201/0913 (07.02.2002 Gazette 2002/06)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (30) Priority: 27.07.2000 US 626030 (71) Applicant: UNISYS CORPORATION Blue Bell, PA 19424-0001 (US)	(72) Inventors: CRISWELL, Peter, B. Bethel, MN 55005 (US) PETERSON, Edward, R. New Brighton, MN 55112 (US) (74) Representative: Modiano, Guido, Dr.-Ing. et al Modiano, Josif, Pisanty & Staub,Baaderstrasse 3 80469 München 80469 München (DE)