GB8332416D0 - Optical position location apparatus - Google Patents

Optical position location apparatus

Info

Publication number
GB8332416D0
GB8332416D0 GB838332416A GB8332416A GB8332416D0 GB 8332416 D0 GB8332416 D0 GB 8332416D0 GB 838332416 A GB838332416 A GB 838332416A GB 8332416 A GB8332416 A GB 8332416A GB 8332416 D0 GB8332416 D0 GB 8332416D0
Authority
GB
United Kingdom
Prior art keywords
position location
optical position
location apparatus
optical
location
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
GB838332416A
Other versions
GB2131544B (en
GB2131544A (en
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.)
LOWBAR Inc
Original Assignee
LOWBAR 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 LOWBAR Inc filed Critical LOWBAR Inc
Publication of GB8332416D0 publication Critical patent/GB8332416D0/en
Publication of GB2131544A publication Critical patent/GB2131544A/en
Application granted granted Critical
Publication of GB2131544B publication Critical patent/GB2131544B/en
Expired legal-status Critical Current

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
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Position Input By Displaying (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB08332416A 1982-12-07 1983-12-05 Optical postition location apparatus Expired GB2131544B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44748782A 1982-12-07 1982-12-07

Publications (3)

Publication Number Publication Date
GB8332416D0 true GB8332416D0 (en) 1984-01-11
GB2131544A GB2131544A (en) 1984-06-20
GB2131544B GB2131544B (en) 1986-03-05

Family

ID=23776576

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08332416A Expired GB2131544B (en) 1982-12-07 1983-12-05 Optical postition location apparatus

Country Status (5)

Country Link
JP (1) JPS59119206A (en)
CH (1) CH656731A5 (en)
DE (1) DE3344312A1 (en)
FR (1) FR2539506A1 (en)
GB (1) GB2131544B (en)

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US4986662A (en) * 1988-12-19 1991-01-22 Amp Incorporated Touch entry using discrete reflectors
US5220409A (en) * 1988-12-19 1993-06-15 Amp Incorporated Light beam detection utilizing hologram
GB2275770A (en) * 1993-03-04 1994-09-07 Augustine Kamugisha Tibazarwa X-Y position based on reflected light
US7823785B2 (en) 2006-05-18 2010-11-02 Panasonic Corporation Planar light source device and liquid crystal display device
US8716614B2 (en) 2007-10-10 2014-05-06 Flatfrog Laboratories Ab Touch pad and a method of operating the touch pad
US8542217B2 (en) 2008-06-23 2013-09-24 Flatfrog Laboratories Ab Optical touch detection using input and output beam scanners
TW201007530A (en) 2008-06-23 2010-02-16 Flatfrog Lab Ab Detecting the location of an object on a touch surface
TW201013492A (en) 2008-06-23 2010-04-01 Flatfrog Lab Ab Determining the location of one or more objects 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
TW201001258A (en) * 2008-06-23 2010-01-01 Flatfrog Lab Ab Determining the location of one or more 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
TWI405109B (en) 2009-07-03 2013-08-11 Pixart Imaging Inc Optical touch display
WO2011006499A1 (en) * 2009-07-16 2011-01-20 Opdi Technologies A/S An encoding device and a method of encoding
EP2454650B1 (en) 2009-07-16 2017-03-08 O-Net WaveTouch Limited A device and a method of encoding a position of an object
CN102012768B (en) * 2009-09-08 2014-07-02 原相科技股份有限公司 Optical touch display device
US10168835B2 (en) 2012-05-23 2019-01-01 Flatfrog Laboratories Ab Spatial resolution in touch displays
WO2014168567A1 (en) 2013-04-11 2014-10-16 Flatfrog Laboratories Ab Tomographic processing for touch detection
US9874978B2 (en) 2013-07-12 2018-01-23 Flatfrog Laboratories Ab Partial detect mode
US10126882B2 (en) 2014-01-16 2018-11-13 Flatfrog Laboratories Ab 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
WO2015199602A1 (en) 2014-06-27 2015-12-30 Flatfrog Laboratories Ab Detection of surface contamination
CN107209608A (en) 2015-01-28 2017-09-26 平蛙实验室股份公司 Dynamic touch isolates frame
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
CN107250855A (en) 2015-03-02 2017-10-13 平蛙实验室股份公司 Optical component for optical coupling
CN108369470B (en) 2015-12-09 2022-02-08 平蛙实验室股份公司 Improved stylus recognition
EP3545392A4 (en) 2016-11-24 2020-07-29 FlatFrog Laboratories AB Automatic optimisation of touch signal
KR102495467B1 (en) 2016-12-07 2023-02-06 플라트프로그 라보라토리즈 에이비 An improved touch device
US10963104B2 (en) 2017-02-06 2021-03-30 Flatfrog Laboratories Ab Optical coupling in touch-sensing systems
WO2018174786A1 (en) 2017-03-22 2018-09-27 Flatfrog Laboratories Pen differentiation for touch displays
EP4036697A1 (en) 2017-03-28 2022-08-03 FlatFrog Laboratories AB Optical touch sensing apparatus
CN117311543A (en) 2017-09-01 2023-12-29 平蛙实验室股份公司 Touch sensing device
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
JP2023512682A (en) 2020-02-10 2023-03-28 フラットフロッグ ラボラトリーズ アーベー Improved touch detector

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3622226A (en) * 1969-11-19 1971-11-23 Rca Corp Liquid crystal cells in a linear array
US3761877A (en) * 1970-12-21 1973-09-25 O Fernald Optical graphic data tablet
US3775560A (en) * 1972-02-28 1973-11-27 Univ Illinois Infrared light beam x-y position encoder for display devices
US3764813A (en) * 1972-04-12 1973-10-09 Bell Telephone Labor Inc Coordinate detection system
US3860754A (en) * 1973-05-07 1975-01-14 Univ Illinois Light beam position encoder apparatus
US4193691A (en) * 1977-05-02 1980-03-18 Rca Corporation Spectrometer
US4144449A (en) * 1977-07-08 1979-03-13 Sperry Rand Corporation Position detection apparatus
DE3018452C2 (en) * 1980-05-14 1983-11-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Facsimile writing device
DE3025318C2 (en) * 1980-07-04 1982-05-19 Hewlett-Packard France S.A., Eybens Sensor matrix for screens
US4420261A (en) * 1980-09-02 1983-12-13 Lowbar, Inc. Optical position location apparatus

Also Published As

Publication number Publication date
CH656731A5 (en) 1986-07-15
FR2539506A1 (en) 1984-07-20
JPS59119206A (en) 1984-07-10
GB2131544B (en) 1986-03-05
DE3344312A1 (en) 1984-07-19
GB2131544A (en) 1984-06-20

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee