(19)

(11)

EP 2 218 033 A1

(12)

(43) Date of publication: 18.08.2010 Bulletin 2010/33 (21) Application number: 07844971.7 (22) Date of filing: 08.11.2007

(51) International Patent Classification (IPC):  G06K 7/10(2006.01) (86) International application number: PCT/US2007/084043 (87) International publication number: WO 2009/061317 (14.05.2009 Gazette 2009/20)

(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 MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (71) Applicants: Optoelectronics Co., Ltd. Warabi, Saitama Pref. 335-0002 (JP) Opticon, Inc. Orangeburg, NY 10962 (US)	(72) Inventors: KAWASHIMA, Yasutake Kawaguchi-shi Saitama pref. , 333-0845 (JP) TAKAHASHI, Tohru Kawaguchi-shi Saitama, 333-0806 (JP) (74) Representative: Waldren, Robin Michael  Marks & Clerk LLP 90 Long Acre London WC2E 9RA London WC2E 9RA (GB)