JPS6441021A - Picture projection type indication detector - Google Patents

Picture projection type indication detector

Info

Publication number
JPS6441021A
JPS6441021A JP19638387A JP19638387A JPS6441021A JP S6441021 A JPS6441021 A JP S6441021A JP 19638387 A JP19638387 A JP 19638387A JP 19638387 A JP19638387 A JP 19638387A JP S6441021 A JPS6441021 A JP S6441021A
Authority
JP
Japan
Prior art keywords
circuit
picture
coordinate
screen
coordinates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP19638387A
Other languages
English (en)
Other versions
JP2977559B2 (ja
Inventor
Koichi Takeuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP19638387A priority Critical patent/JP2977559B2/ja
Publication of JPS6441021A publication Critical patent/JPS6441021A/ja
Application granted granted Critical
Publication of JP2977559B2 publication Critical patent/JP2977559B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Position Input By Displaying (AREA)
  • Facsimiles In General (AREA)
JP19638387A 1987-08-07 1987-08-07 画像投影型指示検出装置 Expired - Fee Related JP2977559B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19638387A JP2977559B2 (ja) 1987-08-07 1987-08-07 画像投影型指示検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19638387A JP2977559B2 (ja) 1987-08-07 1987-08-07 画像投影型指示検出装置

Publications (2)

Publication Number Publication Date
JPS6441021A true JPS6441021A (en) 1989-02-13
JP2977559B2 JP2977559B2 (ja) 1999-11-15

Family

ID=16356959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19638387A Expired - Fee Related JP2977559B2 (ja) 1987-08-07 1987-08-07 画像投影型指示検出装置

Country Status (1)

Country Link
JP (1) JP2977559B2 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03179517A (ja) * 1989-12-08 1991-08-05 Hitachi Ltd ポインティングデバイス装置及び入力方法
JPH04260114A (ja) * 1990-11-09 1992-09-16 Proxima Corp 光学的コンピュータ入力システムを較正する方法および装置
JPH04299727A (ja) * 1990-11-02 1992-10-22 Xerox Corp 大型ディスプレイのための位置及び機能入力システム
JPH07503562A (ja) * 1992-02-03 1995-04-13 プロクシマ　コーポレイション 光学系補助入力の較正配置とその使用方法
JP2005215214A (ja) * 2004-01-28 2005-08-11 Nec Corp 投射表示装置及び投射表示方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6910778B2 (en) * 2001-09-28 2005-06-28 Fujinon Corporation Presentation system using laser pointer
JP2006163360A (ja) 2004-11-11 2006-06-22 Casio Comput Co Ltd 投影装置、投影方法、投影制御プログラム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968050A (ja) * 1982-09-17 1984-04-17 Canon Inc ラスタ画像表示装置
JPS60123038U (ja) * 1984-01-24 1985-08-19 株式会社ピ−エフユ− 手書情報の表示装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968050A (ja) * 1982-09-17 1984-04-17 Canon Inc ラスタ画像表示装置
JPS60123038U (ja) * 1984-01-24 1985-08-19 株式会社ピ−エフユ− 手書情報の表示装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03179517A (ja) * 1989-12-08 1991-08-05 Hitachi Ltd ポインティングデバイス装置及び入力方法
JPH04299727A (ja) * 1990-11-02 1992-10-22 Xerox Corp 大型ディスプレイのための位置及び機能入力システム
JPH04260114A (ja) * 1990-11-09 1992-09-16 Proxima Corp 光学的コンピュータ入力システムを較正する方法および装置
JPH07503562A (ja) * 1992-02-03 1995-04-13 プロクシマ　コーポレイション 光学系補助入力の較正配置とその使用方法
JP2005215214A (ja) * 2004-01-28 2005-08-11 Nec Corp 投射表示装置及び投射表示方法

Also Published As

Publication number Publication date
JP2977559B2 (ja) 1999-11-15

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees