(19)

(11)

EP 1 989 532 A1

(12)

(43) Date of publication: 12.11.2008 Bulletin 2008/46 (21) Application number: 06791027.3 (22) Date of filing: 18.09.2006

(51) International Patent Classification (IPC):  G01N 21/31(2006.01) (86) International application number: PCT/CN2006/002435 (87) International publication number: WO 2007/082426 (26.07.2007 Gazette 2007/30)

(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: 18.01.2006 US 759588 P (71) Applicant: DPC Technology Ltd Hong Kong (CN)	(72) Inventor: LUK, Waiming HONG KONG (CN) (74) Representative: Hüttermann, Aloys et al Michalski Hüttermann & Partner Patentanwälte Neuer Zollhof 2 40221 Düsseldorf 40221 Düsseldorf (DE)