NL254230A - - Google Patents
Info
- Publication number
- NL254230A NL254230A NL254230DA NL254230A NL 254230 A NL254230 A NL 254230A NL 254230D A NL254230D A NL 254230DA NL 254230 A NL254230 A NL 254230A
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
- G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
- G01S13/785—Distance Measuring Equipment [DME] systems
- G01S13/787—Distance Measuring Equipment [DME] systems co-operating with direction defining beacons
-
- 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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR801703A FR1240696A (fr) | 1959-07-31 | 1959-07-31 | Perfectionnements aux dispositifs de contrôle de la navigation aérienne |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL254230A true NL254230A (US20110009641A1-20110113-C00256.png) |
Family
ID=8717821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL254230D NL254230A (US20110009641A1-20110113-C00256.png) | 1959-07-31 |
Country Status (7)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE502006002251D1 (de) * | 2006-03-23 | 2009-01-15 | Nokia Siemens Networks Gmbh | Verfahren zur Steuerung einer Funkübertragung |
| CN112750244B (zh) * | 2020-12-30 | 2022-07-22 | 广东赛诺科技股份有限公司 | 一种基于Hadoop技术识别门禁套卡方法及系统 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2666198A (en) * | 1948-03-15 | 1954-01-12 | Wallace | Synchrometric radar system |
| BE540578A (US20110009641A1-20110113-C00256.png) * | 1953-12-02 | |||
| US3055001A (en) * | 1959-06-26 | 1962-09-18 | Percy E Ricketts | Air traffic control system |
-
0
- NL NL254230D patent/NL254230A/xx unknown
-
1959
- 1959-07-31 FR FR801703A patent/FR1240696A/fr not_active Expired
-
1960
- 1960-07-26 US US45383A patent/US3181142A/en not_active Expired - Lifetime
- 1960-07-29 BE BE593543A patent/BE593543A/fr unknown
- 1960-07-29 GB GB26433/60A patent/GB954496A/en not_active Expired
- 1960-07-30 DE DEV19092A patent/DE1211294B/de active Pending
- 1960-08-01 CH CH874160A patent/CH420290A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB954496A (en) | 1964-04-08 |
| DE1211294B (de) | 1966-02-24 |
| BE593543A (fr) | 1961-01-30 |
| US3181142A (en) | 1965-04-27 |
| CH420290A (fr) | 1966-09-15 |
| FR1240696A (fr) | 1960-09-09 |
