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EP 2 553 394 A1

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(43) Date of publication: 06.02.2013 Bulletin 2013/06 (21) Application number: 11713526.9 (22) Date of filing: 09.03.2011

(51) International Patent Classification (IPC):  G01C 21/32(2006.01) G09B 29/10(2006.01) G01C 21/36(2006.01) (86) International application number: PCT/JP2011/056141 (87) International publication number: WO 2011/122338 (06.10.2011 Gazette 2011/40)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 31.03.2010 JP 2010081269 (71) Applicant: Aisin AW Co., Ltd. Anjo-shi, Aichi 444-1192 (JP)	(72) Inventors: SUZUKI, Seiichi Anjo-shi Aichi 444-1192 (JP) KURAUCHI, Naoyuki Anjo-shi Aichi 444-1192 (JP) (74) Representative: Kramer - Barske - Schmidtchen  Landsberger Strasse 300 80687 München 80687 München (DE)