(19)

(11)

EP 1 044 422 A1

(12)

(43) Date of publication: 18.10.2000 Bulletin 2000/42 (21) Application number: 99947338.2 (22) Date of filing: 14.09.1999

(51) International Patent Classification (IPC)7: G06F 17/60 (86) International application number: PCT/EP9906/782 (87) International publication number: WO 0017/789 (30.03.2000 Gazette 2000/13)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 17.09.1998 US 100826 P 25.09.1998 US 160490 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventors: TURNER, Adrian, J. NL-5656 AA Eindhoven (NL) PEARCE, Simon NL-5656 AA Eindhoven (NL) EVES, David, A. NL-5656 AA Eindhoven (NL) TIMMS, Allan, R. NL-5656 AA Eindhoven (NL) (74) Representative: Hoekstra, Jelle et al Internationaal Octrooibureau B.V.Prof. Holstlaan 6 5656 AA Eindhoven 5656 AA Eindhoven (NL)