(19)

(11)

EP 1 709 462 A1

(12)

(43) Date of publication: 11.10.2006 Bulletin 2006/41 (21) Application number: 05702589.2 (22) Date of filing: 05.01.2005

(51) International Patent Classification (IPC):  G01T 1/164(2006.01) (86) International application number: PCT/IB2005/050059 (87) International publication number: WO 2005/071438 (04.08.2005 Gazette 2005/31)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 15.01.2004 US 536756 P (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventors: LAURENCE, Thomas, L. Cleveland, OH 44143 (US) COOKE, Steven, E. Cleveland, OH 44143 (US) GEAGAN, Michael, J. Cleveland, OH 44143 (US) WELLNITZ, Donald, R. Cleveland, OH 44143 (US) MARTIN, Steven, R. Cleveland, OH 44143 (US) (74) Representative: Schouten, Marcus Maria  Philips Intellectual Property & Standards P.O. Box 220 5600 AE Eindhoven 5600 AE Eindhoven (NL)