FR2172828B1 - - Google Patents

Info

Publication number
FR2172828B1
FR2172828B1 FR7206134A FR7206134A FR2172828B1 FR 2172828 B1 FR2172828 B1 FR 2172828B1 FR 7206134 A FR7206134 A FR 7206134A FR 7206134 A FR7206134 A FR 7206134A FR 2172828 B1 FR2172828 B1 FR 2172828B1
Authority
FR
France
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.)
Expired
Application number
FR7206134A
Other languages
French (fr)
Other versions
FR2172828A1 (pt
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.)
Thales SA
Original Assignee
Dassault Electronique SA
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 Dassault Electronique SA filed Critical Dassault Electronique SA
Priority to FR7206134A priority Critical patent/FR2172828B1/fr
Publication of FR2172828A1 publication Critical patent/FR2172828A1/fr
Application granted granted Critical
Publication of FR2172828B1 publication Critical patent/FR2172828B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/781—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/783—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
    • G01S3/7835—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using coding masks
FR7206134A 1972-02-23 1972-02-23 Expired FR2172828B1 (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7206134A FR2172828B1 (pt) 1972-02-23 1972-02-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7206134A FR2172828B1 (pt) 1972-02-23 1972-02-23

Publications (2)

Publication Number Publication Date
FR2172828A1 FR2172828A1 (pt) 1973-10-05
FR2172828B1 true FR2172828B1 (pt) 1974-12-13

Family

ID=9093996

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7206134A Expired FR2172828B1 (pt) 1972-02-23 1972-02-23

Country Status (1)

Country Link
FR (1) FR2172828B1 (pt)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0265542A1 (en) * 1986-10-28 1988-05-04 Richard R. Rathbone Optical navigation system
US4857721A (en) * 1988-03-28 1989-08-15 The Perkin-Elmer Corporation Optical direction sensor having gray code mask spaced from a plurality of interdigitated detectors
US7435940B2 (en) 2003-03-12 2008-10-14 Flatfrog Laboratories Ab System and a method of determining the position of a radiation emitting element
US7442914B2 (en) 2003-09-12 2008-10-28 Flatfrog Laboratories Ab System and method of determining a 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
JP5694772B2 (ja) 2007-10-26 2015-04-01 コーニンクレッカ フィリップス エヌ ヴェ 光角度選択型光検出装置
SE533704C2 (sv) 2008-12-05 2010-12-07 Flatfrog Lab Ab Pekkänslig apparat och förfarande för drivning av densamma
US10168835B2 (en) 2012-05-23 2019-01-01 Flatfrog Laboratories Ab Spatial resolution in touch displays
US10019113B2 (en) 2013-04-11 2018-07-10 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
WO2015108479A1 (en) 2014-01-16 2015-07-23 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
US11182023B2 (en) 2015-01-28 2021-11-23 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
CN107209609A (zh) 2015-02-09 2017-09-26 平蛙实验室股份公司 包括在传输面板上方和内部投射和检测光束的装置的光学触摸系统
WO2016140612A1 (en) 2015-03-02 2016-09-09 Flatfrog Laboratories Ab Optical component for light coupling
CN108369470B (zh) 2015-12-09 2022-02-08 平蛙实验室股份公司 改进的触控笔识别
WO2018096430A1 (en) 2016-11-24 2018-05-31 Flatfrog Laboratories Ab Automatic optimisation of touch signal
PT3667475T (pt) 2016-12-07 2022-10-17 Flatfrog Lab Ab Dispositivo tátil curvo
US10963104B2 (en) 2017-02-06 2021-03-30 Flatfrog Laboratories Ab Optical coupling in touch-sensing systems
US10481737B2 (en) 2017-03-22 2019-11-19 Flatfrog Laboratories Ab Pen differentiation for touch display
CN110663015A (zh) 2017-03-28 2020-01-07 平蛙实验室股份公司 触摸感应装置和用于组装的方法
CN117311543A (zh) 2017-09-01 2023-12-29 平蛙实验室股份公司 触摸感测设备
WO2019172826A1 (en) 2018-03-05 2019-09-12 Flatfrog Laboratories Ab Improved touch-sensing apparatus
US11943563B2 (en) 2019-01-25 2024-03-26 FlatFrog Laboratories, AB Videoconferencing terminal and method of operating the same
CN115039063A (zh) 2020-02-10 2022-09-09 平蛙实验室股份公司 改进的触摸感测设备

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH441781A (de) * 1961-12-04 1967-08-15 Hensoldt & Soehne Optik Photoelektrische Einrichtung zur Anzeige der Verschiebungsgrösse eines beweglichen Teiles
US3435246A (en) * 1966-02-09 1969-03-25 Webb James E Light radiation direction indicator with a baffle of two parallel grids

Also Published As

Publication number Publication date
FR2172828A1 (pt) 1973-10-05

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Legal Events

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ST Notification of lapse