US3332078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar signal simulator
Assignee: Individual
•
Filing: 1966-01-18
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Granted: 1967-07-18
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Expires: 1986-01-18
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:12
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4004; G01S7/4021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A RADAR SIGNAL SIMULATOR COMPRISING: FIRST AND SECOND BALANCED MODULATORS EACH HAVING A CARRIER SIGNAL INPUT TERMINAL AND A MODULATION SIGNAL INPUT TERMINAL; MEANS FOR APPLYING A CARRIER FREQUENCY SIGNAL TO BOTH OF SAID MODULATOR CARRIER SIGNAL INPUT TERMINALS IN PHASE QUADRATURE; SUBTRACTOR MEANS CONNECTED TO THE OUTPUTS OF SAID MODULATORS, THE OUTPUT FROM SAID SUBTRACTOR MEANS BEING A SIMULATED TARGET SIGNAL; AND MODULATION SIGNAL GENERATING MEANS CONNECTED TO SAID MODULATOR MODULATION INPUT TERMINALS FOR APPLYING THERETO EITHER A PULSED SINUSOID WHICH IS APPLIED TO SAID FIRST AND SECOND MODULATORS IN PHASE QUADRATURE, OR A VIDEO PULSE WHICH IS APPLIED TO ONLY ONE OF SAID MODULATORS.
Claim 2
Dependent Claim
106 words
A RADAR SIGNAL SIMULATOR COMPRISING: FIRST AND SECOND BALANCED MODULATORS EACH HAVING A CARRIER SIGNAL INPUT TERMINAL AND A MODULATION SIGNAL INPUT TERMINAL; MEANS FOR APPLYING A CARRIER FREQUENCY SIGNAL TO BOTH OF SAID MODULATOR CARRIER SIGNAL INPUT TERMINALS IN PHASE QUADRATURE; SUBTRACTOR MEANS CONNECTED TO THE OUTPUTS OF SAID MODULATORS, THE OUTPUT FROM SAID SUBTRACTOR MEANS BEING A SIMULATED TARGET SIGNAL; AND MODULATION SIGNAL GENERATING MEANS CONNECTED TO SAID MODULATOR MODULATION INPUT TERMINALS FOR APPLYING THERETO EITHER A PULSED SINUSOID WHICH IS APPLIED TO SAID FIRST AND SECOND MODULATORS IN PHASE QUADRATURE, OR A VIDEO PULSE WHICH IS APPLIED TO ONLY ONE OF SAID MODULATORS.
References 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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |