WO2008068607A3 - Position determination in optical interface systems - Google Patents

Position determination in optical interface systems Download PDF

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Publication number
WO2008068607A3
WO2008068607A3 PCT/IB2007/003815 IB2007003815W WO2008068607A3 WO 2008068607 A3 WO2008068607 A3 WO 2008068607A3 IB 2007003815 W IB2007003815 W IB 2007003815W WO 2008068607 A3 WO2008068607 A3 WO 2008068607A3
Authority
WO
WIPO (PCT)
Prior art keywords
radiation
waveguide
touch
range
point
Prior art date
Application number
PCT/IB2007/003815
Other languages
French (fr)
Other versions
WO2008068607A2 (en
Inventor
Daniel D Young
Jens Wagenblast Stu Ostergaard
Original Assignee
Flatfrog Lab Ab
Daniel D Young
Jens Wagenblast Stu Ostergaard
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 Flatfrog Lab Ab, Daniel D Young, Jens Wagenblast Stu Ostergaard filed Critical Flatfrog Lab Ab
Priority to EP07858984.3A priority Critical patent/EP2126673A4/en
Publication of WO2008068607A2 publication Critical patent/WO2008068607A2/en
Publication of WO2008068607A3 publication Critical patent/WO2008068607A3/en

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
    • G06F3/0423—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 using sweeping light beams, e.g. using rotating or vibrating mirror
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04109—FTIR in optical digitiser, i.e. touch detection by frustrating the total internal reflection within an optical waveguide due to changes of optical properties or deformation at the touch location

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)

Abstract

An optical interface system, such as a touch pad or a touch screen, includes an optical waveguide (P) having a first surface adapted to be engaged by an object in a point-of-touch (O) so as to reflect/scatter radiation into the waveguide (P). The system includes at least one emitter (E1) for injecting radiation into the waveguide (P) and at least one detector (D1, D2) for detecting injected radiation that has been reflected/scattered by the object. The emitter(s) and detector(s) form part of at least one range-finder of the system for determining the distance to the point-of-touch by comparing emitted and detected radiation. The system further includes means (C) for determining the position of the point-of-touch (O) on the waveguide (P). Such determining means (C) may operate on a plurality of distances determined by a plurality of range-finders or on at least one distance determined by a range-finder and a direction/angle for the emitted radiation and/or the detected radiation in a plane parallel to the first surface of the waveguide.
PCT/IB2007/003815 2006-12-08 2007-12-07 Position determination in optical interface systems WO2008068607A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07858984.3A EP2126673A4 (en) 2006-12-08 2007-12-07 Position determination in optical interface systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US87359406P 2006-12-08 2006-12-08
US60/873,594 2006-12-08

Publications (2)

Publication Number Publication Date
WO2008068607A2 WO2008068607A2 (en) 2008-06-12
WO2008068607A3 true WO2008068607A3 (en) 2008-08-07

Family

ID=39492682

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/003815 WO2008068607A2 (en) 2006-12-08 2007-12-07 Position determination in optical interface systems

Country Status (2)

Country Link
EP (1) EP2126673A4 (en)
WO (1) WO2008068607A2 (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009048365A1 (en) * 2007-10-10 2009-04-16 Flatfrog Laboratories Ab A touch pad and a method of operating the touch pad
US8941631B2 (en) 2007-11-16 2015-01-27 Qualcomm Mems Technologies, Inc. Simultaneous light collection and illumination on an active display
TW201013492A (en) 2008-06-23 2010-04-01 Flatfrog Lab Ab Determining the location of one or more objects on a touch surface
EP2318903A2 (en) 2008-06-23 2011-05-11 FlatFrog Laboratories AB Detecting the location of an object on a touch surface
TW201007530A (en) 2008-06-23 2010-02-16 Flatfrog Lab Ab Detecting the location of an object on a touch surface
TW201005606A (en) 2008-06-23 2010-02-01 Flatfrog Lab Ab Detecting the locations of a plurality of objects on a touch surface
SE533704C2 (en) 2008-12-05 2010-12-07 Flatfrog Lab Ab Touch sensitive apparatus and method for operating the same
GB201020282D0 (en) 2010-11-30 2011-01-12 Dev Ltd An improved input device and associated method
GB2486165A (en) 2010-11-30 2012-06-13 St Microelectronics Res & Dev Oven using a Single Photon Avalanche Diode (SPAD) array
GB2485994A (en) 2010-11-30 2012-06-06 St Microelectronics Res & Dev Navigation device using a Single Photon Avalanche Diode (SPAD) detector
US20120313895A1 (en) 2011-06-10 2012-12-13 Texas Instruments Incorporated Touch screen
GB2494663A (en) 2011-09-14 2013-03-20 St Microelectronics Res & Dev A system and corresponding method for monitoring vibration isolators
WO2013089623A2 (en) * 2011-12-16 2013-06-20 Flatfrog Laboratories Ab Tracking objects on a touch surface
US10168835B2 (en) 2012-05-23 2019-01-01 Flatfrog Laboratories Ab Spatial resolution in touch displays
US9726803B2 (en) 2012-05-24 2017-08-08 Qualcomm Incorporated Full range gesture system
US10019113B2 (en) 2013-04-11 2018-07-10 Flatfrog Laboratories Ab Tomographic processing for touch detection
WO2015005847A1 (en) 2013-07-12 2015-01-15 Flatfrog Laboratories Ab Partial detect mode
WO2015108480A1 (en) 2014-01-16 2015-07-23 Flatfrog Laboratories Ab Improvements in tir-based optical touch systems of projection-type
US10146376B2 (en) 2014-01-16 2018-12-04 Flatfrog Laboratories Ab Light coupling in TIR-based optical touch systems
US10161886B2 (en) 2014-06-27 2018-12-25 Flatfrog Laboratories Ab Detection of surface contamination
US9223441B1 (en) * 2014-08-07 2015-12-29 Microsoft Technology Licensing, Llc Detection surface for a computing device
EP3250993B1 (en) 2015-01-28 2019-09-04 FlatFrog Laboratories AB Dynamic touch quarantine frames
US10318074B2 (en) 2015-01-30 2019-06-11 Flatfrog Laboratories Ab Touch-sensing OLED display with tilted emitters
EP3256936A4 (en) 2015-02-09 2018-10-17 FlatFrog Laboratories AB Optical touch system comprising means for projecting and detecting light beams above and inside a transmissive panel
US10401546B2 (en) 2015-03-02 2019-09-03 Flatfrog Laboratories Ab Optical component for light coupling
KR102400705B1 (en) 2015-12-09 2022-05-23 플라트프로그 라보라토리즈 에이비 Improved stylus identification
CN110100226A (en) 2016-11-24 2019-08-06 平蛙实验室股份公司 The Automatic Optimal of touch signal
PT3667475T (en) 2016-12-07 2022-10-17 Flatfrog Lab Ab A curved touch device
CN110300950B (en) 2017-02-06 2023-06-16 平蛙实验室股份公司 Optical coupling in touch sensing systems
EP3602258B1 (en) 2017-03-22 2024-05-08 FlatFrog Laboratories AB Pen differentiation for touch displays
CN110663015A (en) 2017-03-28 2020-01-07 平蛙实验室股份公司 Touch sensitive device and method for assembly
CN111052058B (en) 2017-09-01 2023-10-20 平蛙实验室股份公司 Improved optical component
US11567610B2 (en) 2018-03-05 2023-01-31 Flatfrog Laboratories Ab Detection line broadening
US11943563B2 (en) 2019-01-25 2024-03-26 FlatFrog Laboratories, AB Videoconferencing terminal and method of operating the same
KR20220131982A (en) 2020-02-10 2022-09-29 플라트프로그 라보라토리즈 에이비 Enhanced touch-sensing device

Citations (3)

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Publication number Priority date Publication date Assignee Title
WO2004081502A2 (en) * 2003-03-12 2004-09-23 O-Pen Aps A system and a method of determining the position of a radiation emitting element
WO2005026938A2 (en) * 2003-09-12 2005-03-24 O-Pen Aps A system and method of determining a position of a radiation scattering/reflecting element
WO2007112742A1 (en) * 2006-03-30 2007-10-11 Flatfrog Laboratories Ab A system and a method of determining a position of a scattering/reflecting element on the surface of a radiation transmissive element

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DE19616926A1 (en) * 1996-04-27 1997-10-30 Beiersdorf Ag Cosmetic and dermatological light protection formulations containing triazine derivatives and monoesters and diesters from branched alkane carboxylic acids and diglycerol or triglycerol
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Patent Citations (5)

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WO2004081502A2 (en) * 2003-03-12 2004-09-23 O-Pen Aps A system and a method of determining the position of a radiation emitting element
US20060255248A1 (en) * 2003-03-12 2006-11-16 Eliasson Jonas O P System and a method of determining the position of a radiation emitting element
WO2005026938A2 (en) * 2003-09-12 2005-03-24 O-Pen Aps A system and method of determining a position of a radiation scattering/reflecting element
US20070125937A1 (en) * 2003-09-12 2007-06-07 Eliasson Jonas O P System and method of determining a position of a radiation scattering/reflecting element
WO2007112742A1 (en) * 2006-03-30 2007-10-11 Flatfrog Laboratories Ab A system and a method of determining a position of a scattering/reflecting element on the surface of a radiation transmissive element

Non-Patent Citations (1)

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Title
See also references of EP2126673A4 *

Also Published As

Publication number Publication date
EP2126673A2 (en) 2009-12-02
EP2126673A4 (en) 2015-03-04
WO2008068607A2 (en) 2008-06-12

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