(19)

(11)

EP 1 924 867 A2

(12)

(88) Date of publication A3: 22.03.2007 (43) Date of publication: 28.05.2008 Bulletin 2008/22 (21) Application number: 06765955.7 (22) Date of filing: 29.06.2006

(51) International Patent Classification (IPC):  G01R 33/385(2006.01) (86) International application number: PCT/IB2006/052189 (87) International publication number: WO 2007/004164 (11.01.2007 Gazette 2007/02)

(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 LV MC NL PL PT RO SE SI SK TR (30) Priority: 30.06.2005 US 695688 P 29.12.2005 US 754928 P (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventors: MULDER, Gert, B., J. NL-5682 HX Best (NL) BUITENDIJK, Robert-Paul NL-7522 ZA Enschede (NL) (74) Representative: Schouten, Marcus Maria  Philips Intellectual Property & Standards P.O. Box 220 5600 AE Eindhoven 5600 AE Eindhoven (NL)