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(11)

EP 1 402 284 A1

(12)

(43) Date of publication: 31.03.2004 Bulletin 2004/14 (21) Application number: 02738499.9 (22) Date of filing: 20.06.2002

(51) International Patent Classification (IPC)7: G01S 15/89, G01S 7/52 (86) International application number: PCT/IB2002/002413 (87) International publication number: WO 2003/001240 (03.01.2003 Gazette 2003/01)

(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: 21.06.2001 US 886291 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventors: FRISTA, Janice L. NL-5656 AA Eindhoven (NL) POLAND, McKee J. NL-5656 AA Eindhoven (NL) SAVORD, Bernard J. NL-5656 AA Eindhoven (NL) SALGO, Ivan S. NL-5656 AA Eindhoven (NL) (74) Representative: Charpail, François et al Philips Intellectual Property & Standards,156 Boulevard Haussmann 75008 Paris 75008 Paris (FR)