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(11)

EP 1 163 592 A1

(12)

(43) Date of publication: 19.12.2001 Bulletin 2001/51 (21) Application number: 99919739.5 (22) Date of filing: 18.03.1999

(51) International Patent Classification (IPC)7: G06F 13/00, G06F 15/177 (86) International application number: PCT/SG9900/037 (87) International publication number: WO 0055/740 (21.09.2000 Gazette 2000/38)

(84) Designated Contracting States: DE FR GB IE IT (71) Applicant: Kent Ridge Digital Labs Singapore 119613 (SG)	(72) Inventors: RANGARAJAN, Sridharan Singapore 120379 (SG) LIN, Feng Singapore 730110 (SG) PANG, Hwee, Hwa Singapore 288408 (SG) (74) Representative: RACKETTE Partnerschaft Patentanwälte  Postfach 13 10 79013 Freiburg 79013 Freiburg (DE)