JP2006301740A5 - - Google Patents

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Publication number
JP2006301740A5
JP2006301740A5 JP2005118971A JP2005118971A JP2006301740A5 JP 2006301740 A5 JP2006301740 A5 JP 2006301740A5 JP 2005118971 A JP2005118971 A JP 2005118971A JP 2005118971 A JP2005118971 A JP 2005118971A JP 2006301740 A5 JP2006301740 A5 JP 2006301740A5
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JP
Japan
Prior art keywords
coordinate input
sensor means
shadows
light
intensity distribution
Prior art date
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Application number
JP2005118971A
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English (en)
Japanese (ja)
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JP4590295B2 (ja
JP2006301740A (ja
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Publication date
Application filed filed Critical
Priority to JP2005118971A priority Critical patent/JP4590295B2/ja
Priority claimed from JP2005118971A external-priority patent/JP4590295B2/ja
Priority to US11/401,389 priority patent/US7538894B2/en
Publication of JP2006301740A publication Critical patent/JP2006301740A/ja
Publication of JP2006301740A5 publication Critical patent/JP2006301740A5/ja
Application granted granted Critical
Publication of JP4590295B2 publication Critical patent/JP4590295B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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JP2005118971A 2005-04-15 2005-04-15 座標入力装置及びその制御方法、プログラム Expired - Fee Related JP4590295B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2005118971A JP4590295B2 (ja) 2005-04-15 2005-04-15 座標入力装置及びその制御方法、プログラム
US11/401,389 US7538894B2 (en) 2005-04-15 2006-04-11 Coordinate input apparatus, control method thereof, and program

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005118971A JP4590295B2 (ja) 2005-04-15 2005-04-15 座標入力装置及びその制御方法、プログラム

Publications (3)

Publication Number Publication Date
JP2006301740A JP2006301740A (ja) 2006-11-02
JP2006301740A5 true JP2006301740A5 (enExample) 2008-05-29
JP4590295B2 JP4590295B2 (ja) 2010-12-01

Family

ID=37469992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005118971A Expired - Fee Related JP4590295B2 (ja) 2005-04-15 2005-04-15 座標入力装置及びその制御方法、プログラム

Country Status (1)

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JP (1) JP4590295B2 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010145038A1 (en) * 2009-06-18 2010-12-23 Baanto International Ltd. Systems and methods for sensing and tracking radiation blocking objects on a surface
KR101070864B1 (ko) * 2009-12-11 2011-10-10 김성한 광학식 터치스크린
EP2612175B1 (en) * 2010-09-02 2018-12-26 Baanto International Ltd. Systems and methods for sensing and tracking radiation blocking objects on a surface
FR2976093B1 (fr) * 2011-06-01 2013-08-16 Thales Sa Systeme tactile a emetteurs et recepteurs optiques
JP6187067B2 (ja) * 2013-09-13 2017-08-30 株式会社リコー 座標検出システム、情報処理装置、プログラム、記憶媒体、座標検出方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000105671A (ja) * 1998-05-11 2000-04-11 Ricoh Co Ltd 座標入力／検出装置および電子黒板システム
JP4083941B2 (ja) * 1999-09-03 2008-04-30 株式会社リコー 座標入力装置
JP4768143B2 (ja) * 2001-03-26 2011-09-07 株式会社リコー 情報入出力装置、情報入出力制御方法およびプログラム
JP2002351615A (ja) * 2001-05-24 2002-12-06 Ricoh Co Ltd ディスプレイ装置
JP2003330603A (ja) * 2002-05-13 2003-11-21 Ricoh Co Ltd 座標検出装置、座標検出方法、その方法をコンピュータに実行させる座標検出プログラムおよび座標検出プログラムを記録した記録媒体

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