Blind landing aid systems
Abstract
Abstract A BLIND LANDING AID SYSTEM, FOR VISUALIZING, ON BOARD AN AIRCRAFT, A LANDING RUNWAY THIS AIRCRAFT IS APPROACHING, THIS SYSTEM COMPRISING AN INFRARED LASER SOURCE, A DEVICE FOR CAUSING THE BEAM EMITTED BY THE SOURCE TO SCAN THE GROUND, IN FRONT OF THE AIRCRAFT, ACCORDINH TO A TELEVISION PATTERN, REFLECTOR BEACONS BOUNDING THE RUNWAY FOR REFLECTING BACK ON ITSELF ANY INCIDENT INFRARED BEAM, A RECIEVER FOR DETECTING THE INFRARED BEAM EMITTED BY THIS SOURCE AFTER REFLECTION ON THESE BEACONS, AND A CATHODERAY TUBE WHOSE SCREEN IS SCANNED IN SYNCHRONISM WITH THE SCANNING PERFORMED BY THE INFRARED BEAM AND WHOSE ELECTRON BEAM IS CONTROLLED BY THE SIGNALS SUPPLIED BY THE RECIEVER, SO AS TO VISUALIZE THE BEACONS AS LUMINOUS SPOTS ON THE SCREEN OF TH CATHODE-RAY TUBE.
Inventors
- 👤 George Assouline
- 👤 Pierre Conjeaud
- 👤 Pierre Girault
- 👤 Eugene Leiba
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |