(19)

(11)

EP 1 844 548 A2

(12)

(88) Date of publication A3: 12.10.2006 (43) Date of publication: 17.10.2007 Bulletin 2007/42 (21) Application number: 06710725.0 (22) Date of filing: 23.01.2006

(51) International Patent Classification (IPC):  H03K 3/2885(2006.01) (86) International application number: PCT/IB2006/050242 (87) International publication number: WO 2006/079966 (03.08.2006 Gazette 2006/31)

(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 LV MC NL PL PT RO SE SI SK TR (30) Priority: 28.01.2005 EP 05100549 (71) Applicant: Koninklijke Philips Electronics N.V. 5621 BA Eindhoven (NL)	(72) Inventors: SANDULEANU, Mihai, A., T. NL-5656 AA Eindhoven (NL) STIKVOORT, Eduard, F. NL-5656 AA Eindhoven (NL) TOMBEUR, Antoon, M., H. NL-5656 AA Eindhoven (NL) (74) Representative: Schouten, Marcus Maria  Philips Intellectual Property & Standards P.O. Box 220 5600 AE Eindhoven 5600 AE Eindhoven (NL)