TWI456464B - 光學觸控系統 - Google Patents

光學觸控系統 Download PDF

Info

Publication number
TWI456464B
TWI456464B TW100147720A TW100147720A TWI456464B TW I456464 B TWI456464 B TW I456464B TW 100147720 A TW100147720 A TW 100147720A TW 100147720 A TW100147720 A TW 100147720A TW I456464 B TWI456464 B TW I456464B
Authority
TW
Taiwan
Prior art keywords
light
brightness
optical touch
touch system
sequence
Prior art date
Application number
TW100147720A
Other languages
English (en)
Other versions
TW201327322A (zh
Inventor
Tzung Min Su
Chih Hsin Lin
Yi Hsien Ko
Ming Tsan Kao
Original Assignee
Pixart Imaging Inc
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 Pixart Imaging Inc filed Critical Pixart Imaging Inc
Priority to TW100147720A priority Critical patent/TWI456464B/zh
Priority to US13/657,969 priority patent/US9389731B2/en
Publication of TW201327322A publication Critical patent/TW201327322A/zh
Application granted granted Critical
Publication of TWI456464B publication Critical patent/TWI456464B/zh

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen

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)
  • Position Input By Displaying (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Claims (13)

  1. 一種光學觸控系統，用以定位一指示物，該光學觸控系統包含：一觸控面；至少一發光單元，設置於該觸控面上；至少一影像感測模組，擷取該觸控面、該指示物及該發光單元之光線以形成一二維影像，並將整個該二維影像轉換為一一維特徵，其中該一維特徵為該二維影像中，每一行畫素之一亮度和、一平均亮度或一加權平均亮度形成之一亮度序列；以及一處理單元，根據該一維特徵定位該指示物。
  2. 依申請專利範圍第1項之光學觸控系統，其中該處理單元定義該亮度序列之一比例或一平移為一門檻值序列。
  3. 依申請專利範圍第2項之光學觸控系統，其中該處理單元比較該亮度序列及該門檻值序列以判斷至少一接觸點，並根據該接觸點定位該指示物。
  4. 依申請專利範圍第1項之光學觸控系統，其中該至少一發光單元包含一反光鏡及至少一發光條，或包含一反光鏡延伸於該觸控面之兩個邊及一個點光源；該光學觸控系統包含一個影像感測模組。
  5. 依申請專利範圍第1項之光學觸控系統，其中該發光單元包含三個發光條，或包含一發光條延伸於該 觸控面之三個邊；該光學觸控系統包含兩個影像感測模組。
  6. 依申請專利範圍第1項之光學觸控系統，其中該影像感測模組包含一CMOS影像感測器。
  7. 一種光學觸控系統，用以定位一指示物，該光學觸控系統包含：一觸控面；一反光鏡，設置於該觸控面上；至少一發光條，設置於該觸控面上；一CMOS影像感測器，擷取該觸控面、該指示物、該反光鏡及該發光條之光線以形成一二維影像，並將整個該二維影像轉換為一一維特徵，其中該一維特徵為該二維影像中，每一行畫素之一亮度和、一平均亮度或一加權平均亮度形成之一亮度序列；以及一處理單元，根據該一維特徵定位該指示物。
  8. 依申請專利範圍第7項之光學觸控系統，其中該處理單元定義該亮度序列之一比例或一平移為一門檻值序列。
  9. 依申請專利範圍第8項之光學觸控系統，其中該處理單元比較該亮度序列及該門檻值序列以判斷至少一接觸點，並根據該接觸點定位該指示物。
  10. 一種光學觸控系統，用以定位一指示物，該光學觸控系統包含：一觸控面； 三個發光條，置於該觸控面上；兩CMOS影像感測器，分別擷取橫跨該觸控面並包含該指示物遮蔽該等發光條之一二維影像，並將整個該二維影像轉換為一一維特徵，其中該一維特徵為該二維影像中，每一行畫素之一亮度和、一平均亮度或一加權平均亮度形成之一亮度序列；以及一處理單元，根據該等CMOS影像感測器輸出之該一維特徵定位該指示物。
  11. 依申請專利範圍第10項之光學觸控系統，其中該處理單元定義該亮度序列之一比例或一平移為一門檻值序列。
  12. 依申請專利範圍第11項之光學觸控系統，其中該處理單元比較該亮度序列及該門檻值序列以判斷一接觸點，並根據該接觸點定位該指示物。
  13. 依申請專利範圍第10項之光學觸控系統，其中該三個發光條合成一發光條延伸於該觸控面的三邊。
TW100147720A 2011-12-21 2011-12-21 光學觸控系統 TWI456464B (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW100147720A TWI456464B (zh) 2011-12-21 2011-12-21 光學觸控系統
US13/657,969 US9389731B2 (en) 2011-12-21 2012-10-23 Optical touch system having an image sensing module for generating a two-dimensional image and converting to a one-dimensional feature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW100147720A TWI456464B (zh) 2011-12-21 2011-12-21 光學觸控系統

Publications (2)

Publication Number Publication Date
TW201327322A TW201327322A (zh) 2013-07-01
TWI456464B true TWI456464B (zh) 2014-10-11

Family

ID=48654040

Family Applications (1)

Application Number Title Priority Date Filing Date
TW100147720A TWI456464B (zh) 2011-12-21 2011-12-21 光學觸控系統

Country Status (2)

Country Link
US (1) US9389731B2 (zh)
TW (1) TWI456464B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11644036B2 (en) 2021-07-13 2023-05-09 Chang Industry Co., Ltd. Assembly structure of a multi-stage impeller and wheel housing in a submersible pump

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9213448B2 (en) * 2012-11-29 2015-12-15 Pixart Imaging Inc. Positioning module, optical touch system and method of calculating a coordinate of a touch medium
TWI511007B (zh) 2014-04-23 2015-12-01 Wistron Corp 光學觸控裝置及光學觸控方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1647100A (zh) * 2002-03-13 2005-07-27 O－笔公司 触摸板以及与触摸板一起使用的触笔和操作触摸板的方法
TW201032105A (en) * 2009-02-19 2010-09-01 Quanta Comp Inc Optical sensing screen and panel sensing method
US20100289773A1 (en) * 2009-05-18 2010-11-18 Cho-Yi Lin Controlling Method Applied to a Sensing System
CN101923418A (zh) * 2010-03-07 2010-12-22 苏州佳世达电通有限公司 物体侦测系统及方法
TW201117079A (en) * 2009-11-03 2011-05-16 Sonix Technology Co Ltd Touch module
TW201128486A (en) * 2010-02-01 2011-08-16 Acer Inc Optical touch control display apparatus and method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6803906B1 (en) 2000-07-05 2004-10-12 Smart Technologies, Inc. Passive touch system and method of detecting user input
JP5451181B2 (ja) * 2009-05-25 2014-03-26 株式会社ジャパンディスプレイ 物体の接触または近接を検出するセンサ装置
TW201108070A (en) * 2009-08-28 2011-03-01 Coretronic Corp Optical touch apparatus
TW201118691A (en) * 2009-11-25 2011-06-01 Coretronic Corp Optical touch apparatus
GB0921216D0 (en) * 2009-12-03 2010-01-20 St Microelectronics Res & Dev Improved touch screen device
US9383864B2 (en) * 2010-03-31 2016-07-05 Smart Technologies Ulc Illumination structure for an interactive input system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1647100A (zh) * 2002-03-13 2005-07-27 O－笔公司 触摸板以及与触摸板一起使用的触笔和操作触摸板的方法
TW201032105A (en) * 2009-02-19 2010-09-01 Quanta Comp Inc Optical sensing screen and panel sensing method
US20100289773A1 (en) * 2009-05-18 2010-11-18 Cho-Yi Lin Controlling Method Applied to a Sensing System
TW201117079A (en) * 2009-11-03 2011-05-16 Sonix Technology Co Ltd Touch module
TW201128486A (en) * 2010-02-01 2011-08-16 Acer Inc Optical touch control display apparatus and method thereof
CN101923418A (zh) * 2010-03-07 2010-12-22 苏州佳世达电通有限公司 物体侦测系统及方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11644036B2 (en) 2021-07-13 2023-05-09 Chang Industry Co., Ltd. Assembly structure of a multi-stage impeller and wheel housing in a submersible pump

Also Published As

Publication number Publication date
US9389731B2 (en) 2016-07-12
US20130162601A1 (en) 2013-06-27
TW201327322A (zh) 2013-07-01

Similar Documents

Publication Publication Date Title
WO2013109609A3 (en) Enhanced contrast for object detection and characterization by optical imaging
JP2011118876A5 (zh)
JP2015513825A5 (zh)
JP6302414B2 (ja) 複数の光源を有するモーションセンサ装置
WO2010036403A3 (en) System and method for structured light illumination with frame subwindows
JP2014174833A5 (zh)
JP2010524279A5 (zh)
FR2935839B1 (fr) Capteur d'images cmos a reflexion lumineuse
WO2013138079A3 (en) Otoscanner with camera for video and scanning
JP2016514305A5 (zh)
GB2523714A (en) Device for optically scanning and measuring an environment
JP2014534568A5 (zh)
JP2010257089A5 (zh)
EP4306075A3 (en) 3d intraoral scanner measuring fluorescence
GB201107716D0 (en) Methods and systems for capturing 3d surface geometry
WO2012037201A3 (en) Curvilinear camera lens as monitor cover plate
MX2010002166A (es) Sistema y metodo para la vigilancia de la pista de aterrizaje.
EP2639675A3 (en) High resolution and high sensitivity optically activated motion detection device using multiple color light sources
EP2722645A3 (en) Three-dimensional measuring device and three-dimensional measuring system
WO2012176106A3 (en) Method and apparatus for inspection of light emitting semiconductor devices using photoluminescence imaging
JP2011027724A5 (zh)
JP2016529959A5 (zh)
WO2017196695A3 (en) Monitoring camera and mount
BR112012031335A2 (pt) dispositivo e método de reconhecimento de gesto, e, programa
WO2015176053A3 (en) Imaging arrangement for optical object motion detection

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees