(19)

(11)

EP 0 855 055 A2

(12)

(43) Date of publication: 29.07.1998 Bulletin 1998/31 (21) Application number: 97928404.0 (22) Date of filing: 14.07.1997

(51) International Patent Classification (IPC):  G06F 13/ 10( . ) H04N 7/ 173( . ) G06F 3/ 06( . ) (86) International application number: PCT/IB1997/000872 (87) International publication number: WO 1998/004975 (05.02.1998 Gazette 1998/05)

(84) Designated Contracting States: DE FR GB (30) Priority: 30.07.1996 US 19960688464 (71) Applicant: Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventor: HOEG, Joseph, E. NL-5656 AA Eindhoven (NL) (74) Representative: Groenendaal, Antonius Wilhelmus Maria, et al  INTERNATIONAAL OCTROOIBUREAU B.V., Prof. Holstlaan 6 5656 AA Eindhoven 5656 AA Eindhoven (NL)