NL6809813A - - Google Patents
Info
- Publication number
- NL6809813A NL6809813A NL6809813A NL6809813A NL6809813A NL 6809813 A NL6809813 A NL 6809813A NL 6809813 A NL6809813 A NL 6809813A NL 6809813 A NL6809813 A NL 6809813A NL 6809813 A NL6809813 A NL 6809813A
- Authority
- NL
- Netherlands
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/04—Indicating or recording train identities
- B61L25/046—Indicating or recording train identities using magnetic tags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/04—Indicating or recording train identities
- B61L25/041—Indicating or recording train identities using reflecting tags
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- 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
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
- G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (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 |
|---|---|---|---|
| FR114973A FR1540992A (fr) | 1967-07-20 | 1967-07-20 | Perfectionnements aux dispositifs d'identification d'objets caractérisés par une information codée |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6809813A true NL6809813A (xx) | 1969-01-22 |
Family
ID=8635441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6809813A NL6809813A (xx) | 1967-07-20 | 1968-07-11 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1774493C3 (xx) |
| FR (1) | FR1540992A (xx) |
| NL (1) | NL6809813A (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2623460B1 (fr) * | 1987-11-20 | 1990-11-16 | Alsthom | Balise d'identification lors du passage d'un mobile en un point donne |
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1967
- 1967-07-20 FR FR114973A patent/FR1540992A/fr not_active Expired
-
1968
- 1968-07-02 DE DE19681774493 patent/DE1774493C3/de not_active Expired
- 1968-07-11 NL NL6809813A patent/NL6809813A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1774493A1 (de) | 1972-01-13 |
| FR1540992A (fr) | 1968-10-04 |
| DE1774493C3 (de) | 1973-09-20 |
| DE1774493B2 (de) | 1973-03-01 |