FR2130021B3 - - Google Patents
Info
- Publication number
- FR2130021B3 FR2130021B3 FR7110830A FR7110830A FR2130021B3 FR 2130021 B3 FR2130021 B3 FR 2130021B3 FR 7110830 A FR7110830 A FR 7110830A FR 7110830 A FR7110830 A FR 7110830A FR 2130021 B3 FR2130021 B3 FR 2130021B3
- 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
- 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
- G01S1/68—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
- G08G1/205—Indicating the location of the monitored vehicles as destination, e.g. accidents, stolen, rental
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7110830A FR2130021B3 (fr) | 1971-03-26 | 1971-03-26 | |
FR7236502A FR2203118A4 (fr) | 1971-03-26 | 1972-10-16 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7110830A FR2130021B3 (fr) | 1971-03-26 | 1971-03-26 | |
FR7236502A FR2203118A4 (fr) | 1971-03-26 | 1972-10-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2130021A3 FR2130021A3 (fr) | 1972-11-03 |
FR2130021B3 true FR2130021B3 (fr) | 1973-12-28 |
Family
ID=26216287
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7110830A Expired FR2130021B3 (fr) | 1971-03-26 | 1971-03-26 | |
FR7236502A Pending FR2203118A4 (fr) | 1971-03-26 | 1972-10-16 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7236502A Pending FR2203118A4 (fr) | 1971-03-26 | 1972-10-16 |
Country Status (1)
Country | Link |
---|---|
FR (2) | FR2130021B3 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2240490A1 (en) * | 1973-08-08 | 1975-03-07 | Gendrot Andre | Vehicle accident signalling system - emitts radio signal to warn approaching vehicles |
DE2912547C2 (de) * | 1979-03-29 | 1984-05-17 | Repa Feinstanzwerk Gmbh, 7071 Alfdorf | Automatisches Notrufsystem für Fahrzeuge |
DE3336092A1 (de) * | 1983-10-04 | 1985-04-18 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur erfassung von gefahrenstellen in einem leit- und informationssystem fuer strassenfahrzeuge |
US5389935A (en) * | 1990-06-13 | 1995-02-14 | Thomson-Csf | Automatic system for locating and identifying vehicles in distress |
FR2663433B1 (fr) * | 1990-06-13 | 1993-04-23 | Thomson Csf | Systeme automatique de localisation et d'identification de vehicules en detresse. |
-
1971
- 1971-03-26 FR FR7110830A patent/FR2130021B3/fr not_active Expired
-
1972
- 1972-10-16 FR FR7236502A patent/FR2203118A4/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2130021A3 (fr) | 1972-11-03 |
FR2203118A4 (fr) | 1974-05-10 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licenses | ||
ST | Notification of lapse |