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
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7206134A FR2172828B1 (https=) | 1972-02-23 | 1972-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7206134A FR2172828B1 (https=) | 1972-02-23 | 1972-02-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2172828A1 FR2172828A1 (https=) | 1973-10-05 |
| FR2172828B1 true FR2172828B1 (https=) | 1974-12-13 |
Family
ID=9093996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7206134A Expired FR2172828B1 (https=) | 1972-02-23 | 1972-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2172828B1 (https=) |
Families Citing this family (30)
| 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 |
| CN1777859B (zh) * | 2003-03-12 | 2010-04-28 | 平蛙实验室股份公司 | 确定射线发射单元位置的系统和方法 |
| CN1867881B (zh) | 2003-09-12 | 2010-08-18 | 平蛙实验室股份公司 | 确定辐射散射/反射件的位置的系统和方法 |
| US7442914B2 (en) | 2003-09-12 | 2008-10-28 | Flatfrog Laboratories Ab | 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 |
| WO2015005847A1 (en) | 2013-07-12 | 2015-01-15 | Flatfrog Laboratories Ab | Partial detect mode |
| US10146376B2 (en) | 2014-01-16 | 2018-12-04 | Flatfrog Laboratories Ab | Light coupling in TIR-based optical touch systems |
| US10126882B2 (en) | 2014-01-16 | 2018-11-13 | Flatfrog Laboratories Ab | TIR-based optical touch systems of projection-type |
| US10161886B2 (en) | 2014-06-27 | 2018-12-25 | Flatfrog Laboratories Ab | Detection of surface contamination |
| 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 |
| WO2016130074A1 (en) | 2015-02-09 | 2016-08-18 | 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 |
| WO2017099657A1 (en) | 2015-12-09 | 2017-06-15 | Flatfrog Laboratories Ab | Improved stylus identification |
| EP3545392A4 (en) | 2016-11-24 | 2020-07-29 | FlatFrog Laboratories AB | AUTOMATIC TACTILE SIGNAL OPTIMIZATION |
| KR102495467B1 (ko) | 2016-12-07 | 2023-02-06 | 플라트프로그 라보라토리즈 에이비 | 개선된 터치 장치 |
| CN116679845A (zh) | 2017-02-06 | 2023-09-01 | 平蛙实验室股份公司 | 触摸感测装置 |
| EP3602257A4 (en) | 2017-03-22 | 2021-01-13 | Flatfrog Laboratories | TOUCH INDICATOR ERASER |
| EP4036697B1 (en) | 2017-03-28 | 2026-01-07 | FlatFrog Laboratories AB | Optical touch sensing apparatus |
| US11256371B2 (en) | 2017-09-01 | 2022-02-22 | Flatfrog Laboratories Ab | Optical component |
| WO2019172826A1 (en) | 2018-03-05 | 2019-09-12 | Flatfrog Laboratories Ab | Improved touch-sensing apparatus |
| US12055969B2 (en) | 2018-10-20 | 2024-08-06 | Flatfrog Laboratories Ab | Frame for a touch-sensitive device and tool therefor |
| US11943563B2 (en) | 2019-01-25 | 2024-03-26 | FlatFrog Laboratories, AB | Videoconferencing terminal and method of operating the same |
| CN114730228A (zh) | 2019-11-25 | 2022-07-08 | 平蛙实验室股份公司 | 一种触摸感应设备 |
| WO2021158164A1 (en) | 2020-02-08 | 2021-08-12 | Flatfrog Laboratories Ab | Touch apparatus with low latency interactions |
| KR102950284B1 (ko) | 2020-02-10 | 2026-04-09 | 플라트프로그 라보라토리즈 에이비 | 향상된 터치-감지 장치 |
Family Cites Families (2)
| 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 (https=) | 1973-10-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |