NL7203313A - - Google Patents
Info
- Publication number
- NL7203313A NL7203313A NL7203313A NL7203313A NL7203313A NL 7203313 A NL7203313 A NL 7203313A NL 7203313 A NL7203313 A NL 7203313A NL 7203313 A NL7203313 A NL 7203313A NL 7203313 A NL7203313 A NL 7203313A
- Authority
- NL
- Netherlands
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
- G01S3/782—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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Theoretical Computer Science (AREA)
- Optical Measuring Cells (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7108662A FR2129045A5 (en) | 1971-03-12 | 1971-03-12 | |
FR7202012A FR2168223B2 (en) | 1972-01-21 | 1972-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7203313A true NL7203313A (en) | 1972-09-14 |
Family
ID=26216259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7203313A NL7203313A (en) | 1971-03-12 | 1972-03-13 |
Country Status (3)
Country | Link |
---|---|
GB (1) | GB1380144A (en) |
IT (1) | IT961146B (en) |
NL (1) | NL7203313A (en) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4593187A (en) * | 1982-10-29 | 1986-06-03 | The Perkin-Elmer Corporation | Non-imaging illumination incidence angle detection 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 |
GB2504249B (en) * | 1989-09-04 | 2014-07-23 | Selex Galileo Ltd | Apparatus for detecting varying-intensity coherent optical radiation |
GB9022873D0 (en) * | 1990-10-20 | 1990-12-05 | Mitchelson David L | Position fixing |
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 |
US7442914B2 (en) | 2003-09-12 | 2008-10-28 | Flatfrog Laboratories Ab | System and method of determining a position of a radiation emitting element |
IL165618A0 (en) * | 2004-12-07 | 2006-01-15 | Complementary masks | |
SE533704C2 (en) | 2008-12-05 | 2010-12-07 | Flatfrog Lab Ab | Touch sensitive apparatus and method for operating the same |
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 |
CN103234511B (en) * | 2013-04-12 | 2015-04-22 | 北京控制工程研究所 | Miniature long life coding type sun sensor |
US9874978B2 (en) | 2013-07-12 | 2018-01-23 | 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 |
CN104090509B (en) * | 2014-06-24 | 2017-01-11 | 北京控制工程研究所 | Encoding type sun sensor signal processing system based on FPGA |
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 |
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 |
WO2017099657A1 (en) | 2015-12-09 | 2017-06-15 | Flatfrog Laboratories Ab | 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 |
KR102495467B1 (en) | 2016-12-07 | 2023-02-06 | 플라트프로그 라보라토리즈 에이비 | An improved touch device |
CN116679845A (en) | 2017-02-06 | 2023-09-01 | 平蛙实验室股份公司 | Touch sensing device |
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 |
WO2019172826A1 (en) | 2018-03-05 | 2019-09-12 | Flatfrog Laboratories Ab | Improved touch-sensing apparatus |
WO2020080992A1 (en) | 2018-10-20 | 2020-04-23 | 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 |
WO2021107840A1 (en) | 2019-11-25 | 2021-06-03 | Flatfrog Laboratories Ab | A touch-sensing apparatus |
KR20220131982A (en) | 2020-02-10 | 2022-09-29 | 플라트프로그 라보라토리즈 에이비 | Enhanced touch-sensing device |
-
1972
- 1972-02-29 IT IT21176/72A patent/IT961146B/en active
- 1972-03-13 NL NL7203313A patent/NL7203313A/xx active Search and Examination
- 1972-03-13 GB GB1158372A patent/GB1380144A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT961146B (en) | 1973-12-10 |
GB1380144A (en) | 1975-01-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BB | A search report has been drawn up | ||
BV | The patent application has lapsed | ||
BC | A request for examination has been filed |