FR2270650B3 - - Google Patents
Info
- Publication number
- FR2270650B3 FR2270650B3 FR7405914A FR7405914A FR2270650B3 FR 2270650 B3 FR2270650 B3 FR 2270650B3 FR 7405914 A FR7405914 A FR 7405914A FR 7405914 A FR7405914 A FR 7405914A FR 2270650 B3 FR2270650 B3 FR 2270650B3
- 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
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7405914A FR2270650A1 (en) | 1974-02-21 | 1974-02-21 | Omnidirectional radar system with double delay - has LF filter, detector and electronic delay units in series with alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7405914A FR2270650A1 (en) | 1974-02-21 | 1974-02-21 | Omnidirectional radar system with double delay - has LF filter, detector and electronic delay units in series with alarm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2270650A1 FR2270650A1 (en) | 1975-12-05 |
| FR2270650B3 true FR2270650B3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-07-23 |
Family
ID=9135251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7405914A Granted FR2270650A1 (en) | 1974-02-21 | 1974-02-21 | Omnidirectional radar system with double delay - has LF filter, detector and electronic delay units in series with alarm |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2270650A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2380605A1 (fr) * | 1977-02-15 | 1978-09-08 | Geluwe Jan Van | Installation de surveillance d'un espace fini |
| EP0010870A1 (en) * | 1978-10-04 | 1980-05-14 | Glynwed Group Services Limited | Electronic lock and key, and an alarm system incorporating same |
-
1974
- 1974-02-21 FR FR7405914A patent/FR2270650A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2270650A1 (en) | 1975-12-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |