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(11)

EP 1 660 990 A2

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(43) Date of publication: 31.05.2006 Bulletin 2006/22 (21) Application number: 04744830.3 (22) Date of filing: 24.08.2004

(51) International Patent Classification (IPC):  G06F 9/30(1980.01) G06F 1/32(1990.01) (86) International application number: PCT/IB2004/051555 (87) International publication number: WO 2005/022379 (10.03.2005 Gazette 2005/10)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR Designated Extension States: AL HR LT LV MK (30) Priority: 28.08.2003 US 498301 P (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)

(72) Inventors: GOODHUE, Greg Briarcliff Manor, NY 10510-8001 (US) KHAN, Ata Briarcliff Manor, NY 10510-8001 (US) SHRIVASTAVA, Pankaj Briarcliff Manor, NY 10510-8001 (US) DING, Zhimin Briarcliff Manor, NY 10510-8001 (US) MACKENNA, Craig Briarcliff Manor, NY 10510-8001 (US) (74) Representative: de Jong, Durk Jan et al Philips Intellectual Property & Standards P.O. Box 220 5600 AE Eindhoven 5600 AE Eindhoven (NL)