FR2172828B1 - - Google Patents

Info

Publication number: FR2172828B1
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 (ja

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.)

1972-02-23

Filing date

1972-02-23

Publication date

1974-12-13

1972-02-23 Application filed by Dassault Electronique SA filed Critical Dassault Electronique SA

1972-02-23 Priority to FR7206134A priority Critical patent/FR2172828B1/fr

1973-10-05 Publication of FR2172828A1 publication Critical patent/FR2172828A1/fr

1974-12-13 Application granted granted Critical

1974-12-13 Publication of FR2172828B1 publication Critical patent/FR2172828B1/fr

Status 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

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
General Physics & Mathematics (AREA)
Radar, Positioning & Navigation (AREA)
Remote Sensing (AREA)

FR7206134A 1972-02-23 1972-02-23 Expired FR2172828B1 (ja)

Priority Applications (1)

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

Applications Claiming Priority (1)

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

Publications (2)

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

Family

ID=9093996

Family Applications (1)

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

Country Status (1)

Country	Link
FR (1)	FR2172828B1 (ja)

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
JP4859053B2 (ja)	2003-09-12	2012-01-18	フラットフロッグ・ラボラトリーズ・アクチボラゲット	放射の散乱／反射要素の位置測定のシステム及び方法
WO2005026930A2 (en)	2003-09-12	2005-03-24	O-Pen Aps	A system and method of determining a position of a radiation emitting element
CN101836124B (zh) *	2007-10-26	2016-03-02	皇家飞利浦电子股份有限公司	光角度选择光探测器设备
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
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
WO2015108479A1 (en)	2014-01-16	2015-07-23	Flatfrog Laboratories Ab	Light coupling in tir-based optical touch systems
WO2015108480A1 (en)	2014-01-16	2015-07-23	Flatfrog Laboratories Ab	Improvements in tir-based optical touch systems of projection-type
US10161886B2 (en)	2014-06-27	2018-12-25	Flatfrog Laboratories Ab	Detection of surface contamination
CN107209608A (zh)	2015-01-28	2017-09-26	平蛙实验室股份公司	动态触摸隔离帧
US10318074B2 (en)	2015-01-30	2019-06-11	Flatfrog Laboratories Ab	Touch-sensing OLED display with tilted emitters
EP3537269A1 (en)	2015-02-09	2019-09-11	FlatFrog Laboratories AB	Optical touch system
CN107250855A (zh)	2015-03-02	2017-10-13	平蛙实验室股份公司	用于光耦合的光学部件
US10775937B2 (en)	2015-12-09	2020-09-15	Flatfrog Laboratories Ab	Stylus identification
US10761657B2 (en)	2016-11-24	2020-09-01	Flatfrog Laboratories Ab	Automatic optimisation of touch signal
DK3667475T3 (da)	2016-12-07	2022-10-17	Flatfrog Lab Ab	Buet berøringsapparat
US10963104B2 (en)	2017-02-06	2021-03-30	Flatfrog Laboratories Ab	Optical coupling in touch-sensing systems
EP3602258B1 (en)	2017-03-22	2024-05-08	FlatFrog Laboratories AB	Pen differentiation for touch displays
WO2018182476A1 (en)	2017-03-28	2018-10-04	Flatfrog Laboratories Ab	Touch sensing apparatus and method for assembly
CN111052058B (zh)	2017-09-01	2023-10-20	平蛙实验室股份公司	改进的光学部件
WO2019172826A1 (en)	2018-03-05	2019-09-12	Flatfrog Laboratories Ab	Improved touch-sensing apparatus
WO2020153890A1 (en)	2019-01-25	2020-07-30	Flatfrog Laboratories Ab	A videoconferencing terminal and method of operating the same
WO2021162602A1 (en)	2020-02-10	2021-08-19	Flatfrog Laboratories Ab	Improved touch-sensing apparatus

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

1972
- 1972-02-23 FR FR7206134A patent/FR2172828B1/fr not_active Expired

Also Published As

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

Legal Events

Date	Code	Title	Description
1980-11-21	ST	Notification of lapse

Publication	Publication Date	Title
JPS499545A (ja)	1974-01-28
CH581360A5 (ja)	1976-10-29
CH590301A5 (ja)	1977-08-15
BG21811A1 (ja)	1976-09-20
BG25905A1 (ja)	1979-01-12
CH435072A4 (ja)	1973-06-29
CH559379A5 (ja)	1975-02-28
CH559797A5 (ja)	1975-03-14
CH559879A5 (ja)	1975-03-14
CH561001A5 (ja)	1975-04-30
CH562146A5 (ja)	1975-05-30
CH562273A5 (ja)	1975-05-30
CH562674A5 (ja)	1975-06-13
CH562750A5 (ja)	1975-06-13
CH562761A5 (ja)	1975-06-13
CH565743A5 (ja)	1975-08-29
CH566059A5 (ja)	1975-08-29
CH567198A5 (ja)	1975-09-30
CH567414A5 (ja)	1975-10-15
CH567690A5 (ja)	1975-10-15
CH568079A5 (ja)	1975-10-31
CH568451A5 (ja)	1975-10-31
CH568452A5 (ja)	1975-10-31
CH583193A5 (ja)	1976-12-31
CH568598B5 (ja)	1975-10-31