US3821752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic interference detector for range tracking pulse radar systems
Assignee: United States Department of the Navy
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Filing: 1966-08-31
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Granted: 1974-06-28
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Expires: 1986-08-31
Abstract
Abstract AN ELECTRONIC INTERFERENCE DETECTOR WHICH UTILIZES THE MINIMUM VIDEO AMPLITUDE AT TARGET RETURN TIME AS THE CRITERIAN FOR DETECTOR ACTION. IN RADAR OPERATION THIS WILL INSURE THAT THE DETECTOR THRESHOLD WILL BE DIRECTLY RELATED TO THE EFFECTIVE NOISE-TO-SIGNAL RATIO SO THAT THE DETECTOR THRESHOLD CAN BE SET AT A VALUE SUCH THAT THE RADAR TRACKING MODES WILL BE ALTERED ONLY WHEN NECESSARY.
Inventors
- 👤 Kelvey J Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:21
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/36; G01S13/00; G01S13/66; G01S13/70
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |