US3092780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency control system for radio frequency discriminators
Assignee: North American Aviation Corp
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Filing: 1960-07-26
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Granted: 1963-06-04
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Expires: 1980-07-26
Abstract
No abstract record available.
Inventors
- 👤 Fisher Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:11
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN COMBINATION A FREQUENCY DISCRIMINATOR, A SOURCE OF PULSED SIGNALS COUPLED TO THE INPUT OF SAID DISCRIMINATOR, AND MEANS FOR AUTOMATICALLY TUNING SAID DISCRIMINATOR TO A PREDETERMINED FREQUENCY COMPRISING A REFERENCE SIGNAL GENERATOR HAVING AN OUTPUT SIGNAL OF A FIXED FREQUENCY CORRESPONDING TO SAID PREDETERMINED FREQUENCY, MEANS FOR CONTROLLING THE FREQUENCY OF SAID DISCRIMINATOR, AND MEANS FOR COUPLING THE OUTPUT OF SAID SIGNAL GENERATOR TO THE INPUT OF SAID DISCRIMINATOR AND THE OUTPUT OF SAID DISCRIMINATOR TO SAID FREQUENCY CONTROLLING MEANS DURING A PREDETERMINED TIME INTERVAL BETWEEN SUCCESSIVE INTERVALS OF PULSED SIGNALS FROM SAID PULSED SIGNAL SOURCE.
Claim 2
Dependent Claim
97 words
IN COMBINATION A FREQUENCY DISCRIMINATOR, A SOURCE OF PULSED SIGNALS COUPLED TO THE INPUT OF SAID DISCRIMINATOR, AND MEANS FOR AUTOMATICALLY TUNING SAID DISCRIMINATOR TO A PREDETERMINED FREQUENCY COMPRISING A REFERENCE SIGNAL GENERATOR HAVING AN OUTPUT SIGNAL OF A FIXED FREQUENCY CORRESPONDING TO SAID PREDETERMINED FREQUENCY, MEANS FOR CONTROLLING THE FREQUENCY OF SAID DISCRIMINATOR, AND MEANS FOR COUPLING THE OUTPUT OF SAID SIGNAL GENERATOR TO THE INPUT OF SAID DISCRIMINATOR AND THE OUTPUT OF SAID DISCRIMINATOR TO SAID FREQUENCY CONTROLLING MEANS DURING A PREDETERMINED TIME INTERVAL BETWEEN SUCCESSIVE INTERVALS OF PULSED SIGNALS FROM SAID PULSED SIGNAL SOURCE.
References Cited (Backward Citations)
US2856519A
Cited
US2915631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |