BE850820A - - Google Patents
Info
- Publication number
- BE850820A BE850820A BE2055630A BE2055630A BE850820A BE 850820 A BE850820 A BE 850820A BE 2055630 A BE2055630 A BE 2055630A BE 2055630 A BE2055630 A BE 2055630A BE 850820 A BE850820 A BE 850820A
- Authority
- BE
- Belgium
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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
- G01S3/782—Systems for determining direction or deviation from predetermined direction
- G01S3/787—Systems for determining direction or deviation from predetermined direction using rotating reticles producing a direction-dependent modulation characteristic
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7609346A NL7609346A (en) | 1976-08-23 | 1976-08-23 | MODULATION METHOD AND MODULATION DEVICE FOR HEAT EXPLORATION APPLIANCES. |
| GB3768976A GB1566871A (en) | 1976-08-23 | 1976-09-10 | Modulation of infrared radiation received by reconnaissance equipment |
| FR7628070A FR2365109A1 (en) | 1976-08-23 | 1976-09-17 | MODULATION METHOD AND DEVICE FOR THERMAL SURVEILLANCE DEVICES |
| BE2055630A BE850820A (en) | 1976-08-23 | 1977-01-28 |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7609346A NL7609346A (en) | 1976-08-23 | 1976-08-23 | MODULATION METHOD AND MODULATION DEVICE FOR HEAT EXPLORATION APPLIANCES. |
| GB3768976A GB1566871A (en) | 1976-08-23 | 1976-09-10 | Modulation of infrared radiation received by reconnaissance equipment |
| FR7628070A FR2365109A1 (en) | 1976-08-23 | 1976-09-17 | MODULATION METHOD AND DEVICE FOR THERMAL SURVEILLANCE DEVICES |
| BE850820 | 1977-01-28 | ||
| BE2055630A BE850820A (en) | 1976-08-23 | 1977-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE850820A true BE850820A (en) | 1978-11-06 |
Family
ID=27507759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE2055630A BE850820A (en) | 1976-08-23 | 1977-01-28 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE850820A (en) |
| FR (1) | FR2365109A1 (en) |
| GB (1) | GB1566871A (en) |
| NL (1) | NL7609346A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH553417A (en) * | 1972-05-03 | 1974-08-30 | Schaerli Anton | AIRSPACE MONITORING AND SURVEILLANCE DEVICE. |
-
1976
- 1976-08-23 NL NL7609346A patent/NL7609346A/en not_active Application Discontinuation
- 1976-09-10 GB GB3768976A patent/GB1566871A/en not_active Expired
- 1976-09-17 FR FR7628070A patent/FR2365109A1/en not_active Withdrawn
-
1977
- 1977-01-28 BE BE2055630A patent/BE850820A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL7609346A (en) | 1978-02-27 |
| GB1566871A (en) | 1980-05-08 |
| FR2365109A1 (en) | 1978-04-14 |