CA2727291A1 - Eraser assemblies - Google Patents

Eraser assemblies Download PDF

Info

Publication number
CA2727291A1
CA2727291A1 CA2727291A CA2727291A CA2727291A1 CA 2727291 A1 CA2727291 A1 CA 2727291A1 CA 2727291 A CA2727291 A CA 2727291A CA 2727291 A CA2727291 A CA 2727291A CA 2727291 A1 CA2727291 A1 CA 2727291A1
Authority
CA
Canada
Prior art keywords
eraser
assembly
display surface
pad
eraser assembly
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.)
Abandoned
Application number
CA2727291A
Other languages
English (en)
French (fr)
Inventor
Peter W. Hildebrandt
James D. Watson
Ning Hui
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.)
Steelcase Inc
Original Assignee
Polyvision 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 Polyvision Corp filed Critical Polyvision Corp
Publication of CA2727291A1 publication Critical patent/CA2727291A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304—Detection arrangements using opto-electronic means
    • G06F3/0317—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface
    • G06F3/0321—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface by optically sensing the absolute position with respect to a regularly patterned surface forming a passive digitiser, e.g. pen optically detecting position indicative tags printed on a paper sheet

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Drawing Aids And Blackboards (AREA)
  • Position Input By Displaying (AREA)
CA2727291A 2008-06-13 2009-06-12 Eraser assemblies Abandoned CA2727291A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/138,759 US8243028B2 (en) 2008-06-13 2008-06-13 Eraser assemblies and methods of manufacturing same
US12/138,759 2008-06-13
PCT/US2009/047194 WO2009152423A1 (en) 2008-06-13 2009-06-12 Eraser assemblies

Publications (1)

Publication Number Publication Date
CA2727291A1 true CA2727291A1 (en) 2009-12-17

Family

ID=41110756

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2727291A Abandoned CA2727291A1 (en) 2008-06-13 2009-06-12 Eraser assemblies

Country Status (5)

Country Link
US (1) US8243028B2 (enExample)
EP (1) EP2313821A1 (enExample)
JP (1) JP5474950B2 (enExample)
CA (1) CA2727291A1 (enExample)
WO (1) WO2009152423A1 (enExample)

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EP2035909A1 (en) * 2006-06-16 2009-03-18 Khaled A. Kaladeh Interactive printed position coded pattern whiteboard
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KR102120772B1 (ko) 2013-06-28 2020-06-17 삼성전자주식회사 전자칠판용 영상 지우개 디바이스 및 그 제어방법, 디스플레이장치 및 그 제어방법, 전자칠판 시스템
JP5864795B1 (ja) * 2015-03-18 2016-02-17 光騎 神子島 ホワイトボードイレイサー
US9678584B2 (en) 2015-04-06 2017-06-13 Microsoft Technology Licensing, Llc Device including electrode having thickness to facilitate tracking
JP6546455B2 (ja) * 2015-06-12 2019-07-17 シャープ株式会社 イレーサ装置および指示入力システム
EP3125074A1 (en) * 2015-07-31 2017-02-01 Wipro Limited An electronic device for erasing contents on a writing board and a method thereof
IN2015CH03991A (enExample) 2015-07-31 2015-08-14 Wipro Ltd
CN105302437B (zh) * 2015-10-13 2019-10-29 联想(北京)有限公司 一种橡皮擦尺寸切换方法和电子设备
CN205485977U (zh) * 2016-03-08 2016-08-17 深圳市千新科技实业有限公司 一种多功能电子板擦
US10534449B2 (en) 2016-08-19 2020-01-14 Microsoft Technology Licensing, Llc Adjustable digital eraser
CN114407561B (zh) * 2021-12-23 2023-02-24 湖南铁道职业技术学院 基于AIoT技术的黑板擦试方法及智能黑板擦组件

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Also Published As

Publication number Publication date
JP5474950B2 (ja) 2014-04-16
US20090309839A1 (en) 2009-12-17
JP2011524274A (ja) 2011-09-01
US8243028B2 (en) 2012-08-14
EP2313821A1 (en) 2011-04-27
WO2009152423A1 (en) 2009-12-17

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Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20140428

FZDE Discontinued

Effective date: 20160613