Range-detecting doppler radar
Abstract
Abstract A DOPPLER RADAR FOR DETECTING RANGE TO A TARGET HAVING A SINGLE SOLID STATE DEVICE FOR GENERATING MICROWAVE ENERGY AT TIME-SHARED FIRST AND SECOND FREQUENCIES AND FOR SIMULTANEOUSLY MIXING MICROWAVE ENERGY REFLECTED FORM THE TARGET WITH GENERATED ENERGY AT EACH OF THE ABOVE FREQUENCIES TO OBTAIN A COMPOSITE DOPPLER SGNAL HAVING TWO TIME-SHARED COMPONENTS IN COMBINATION WITH A CIRCUIT FOR SEPARATING THE TWO TIME-SHARED DOPPLER COMPONENTS FROM THE COMPOSITE SIGNAL, EXTRAPOLATING THE TIME-SHARED COMPONENTS TO PROVIDE A PAIR OF CONTINUOUS COMPONENT SIGNALS, AND A PHASE COMPARATOR FOR PROVIDING A SIGNAL REPRESENTATIVE OF THE PHASE DIFFERENCE IN THE CONTINUOUS COMPONENT SIGNALS WHICH REPRESENTS THE RANGE TO THE TARGET. D R A W I N G
Inventors
- 👤 Radha Raman Gupta
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |