(19)

(11)

EP 1 334 457 A2

(12)

(88) Date of publication A3: 09.01.2003 (43) Date of publication: 13.08.2003 Bulletin 2003/33 (21) Application number: 01989428.6 (22) Date of filing: 23.10.2001

(51) International Patent Classification (IPC)7: G06F 17/60, G09B 5/00 (86) International application number: PCT/EP0112/348 (87) International publication number: WO 0203/7350 (10.05.2002 Gazette 2002/19)

(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: 30.10.2000 US 703994 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventor: STROOMER, Martinus NL-5656 AA Eindhoven (NL) (74) Representative: Groenendaal, Antonius Wilhelmus Maria  INTERNATIONAAL OCTROOIBUREAU B.V.,Prof. Holstlaan 6 5656 AA Eindhoven 5656 AA Eindhoven (NL)