FR2176067A1 - - Google Patents
Info
- Publication number
- FR2176067A1 FR2176067A1 FR7309177A FR7309177A FR2176067A1 FR 2176067 A1 FR2176067 A1 FR 2176067A1 FR 7309177 A FR7309177 A FR 7309177A FR 7309177 A FR7309177 A FR 7309177A FR 2176067 A1 FR2176067 A1 FR 2176067A1
- 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.)
- Withdrawn
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
-
- 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
- B61L25/045—Indicating or recording train identities using reradiating tags
-
- 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
- G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
- H04Q9/08—Calling by using continuous AC
- H04Q9/12—Calling by using continuous AC using combinations of frequencies
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Near-Field Transmission Systems (AREA)
- Selective Calling Equipment (AREA)
- Traffic Control Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE327972A SE388101B (sv) | 1972-03-15 | 1972-03-15 | Anordning for automatisk overforing av information omfattande en informationssokare och en informationsgivare i vilken en informationssoksignal ger upphov till en fran denna utsend informationsberande signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2176067A1 true FR2176067A1 (OSRAM) | 1973-10-26 |
Family
ID=20261770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7309177A Withdrawn FR2176067A1 (OSRAM) | 1972-03-15 | 1973-03-14 |
Country Status (7)
| Country | Link |
|---|---|
| DE (1) | DE2311948A1 (OSRAM) |
| DK (1) | DK134730B (OSRAM) |
| FR (1) | FR2176067A1 (OSRAM) |
| GB (1) | GB1431303A (OSRAM) |
| NL (1) | NL7303279A (OSRAM) |
| NO (1) | NO137253C (OSRAM) |
| SE (1) | SE388101B (OSRAM) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2313824A1 (fr) * | 1975-03-27 | 1976-12-31 | Stiftelsen Inst Mikrovags | Dispositif pour enregistrer des objets |
| FR2386050A1 (fr) * | 1977-03-30 | 1978-10-27 | Tokyo Shibaura Electric Co | Dispositif d'identification d'objets |
-
1972
- 1972-03-15 SE SE327972A patent/SE388101B/xx unknown
-
1973
- 1973-03-07 DE DE19732311948 patent/DE2311948A1/de active Pending
- 1973-03-08 NL NL7303279A patent/NL7303279A/xx not_active Application Discontinuation
- 1973-03-09 GB GB1160473A patent/GB1431303A/en not_active Expired
- 1973-03-14 DK DK138173A patent/DK134730B/da unknown
- 1973-03-14 FR FR7309177A patent/FR2176067A1/fr not_active Withdrawn
- 1973-03-14 NO NO101873A patent/NO137253C/no unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2313824A1 (fr) * | 1975-03-27 | 1976-12-31 | Stiftelsen Inst Mikrovags | Dispositif pour enregistrer des objets |
| FR2386050A1 (fr) * | 1977-03-30 | 1978-10-27 | Tokyo Shibaura Electric Co | Dispositif d'identification d'objets |
Also Published As
| Publication number | Publication date |
|---|---|
| DK134730C (OSRAM) | 1977-05-31 |
| DE2311948A1 (de) | 1973-09-20 |
| NL7303279A (OSRAM) | 1973-09-18 |
| NO137253B (no) | 1977-10-17 |
| NO137253C (no) | 1978-02-01 |
| SE388101B (sv) | 1976-09-20 |
| DK134730B (da) | 1977-01-03 |
| GB1431303A (en) | 1976-04-07 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |