US3382460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linearly swept frequency generator
Assignee: Lockheed Martin Corp
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Filing: 1967-09-11
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Granted: 1968-05-07
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Expires: 1987-09-11
Abstract
No abstract record available.
Inventors
- 👤 Blitz Daniel
- 👤 Martin R Richmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:41
CPC Classifications
H; H03; H03B; H03B23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A CONTROLLED SWEEP FREQUENCY GENERATOR FOR PROVIDING AN OUTPUT WHOSE FREQUENCY VARIES AS A SELECTED FUNCTION OF TIME, SAID GENERATOR COMPRISING A. A VARIABLE FREQUENCY GENERATOR, B. MEANS FOR REPETITIVELY SAMPLING THE PHASE OF THE OUTPUT SIGNAL FROM SAID VARIABLE FREQUENCY GENERATOR TO DEVELOP ERROR SIGNALS WHOSE MAGNITUDE AND POLARITY CORRESPOND TO THE DIFFERENCE BETWEEN SAID PHASE AND THE PHASE OF A REFERENCE SIGNAL, C. A SAMPLING FREQUENCY GENERATOR FOR CONTROLLING THE SAMPLING RATE OF SAID SAMPLING MEANS, SAID SAMPLING FREQUENCY GENERATOR HAVING A FREQUENCY SUCH THAT WHEN THE OUTPUT SIGNAL FROM SAID VARIABLE FREQUENCY
Claim 2
Dependent Claim
95 words
A CONTROLLED SWEEP FREQUENCY GENERATOR FOR PROVIDING AN OUTPUT WHOSE FREQUENCY VARIES AS A SELECTED FUNCTION OF TIME, SAID GENERATOR COMPRISING A. A VARIABLE FREQUENCY GENERATOR, B. MEANS FOR REPETITIVELY SAMPLING THE PHASE OF THE OUTPUT SIGNAL FROM SAID VARIABLE FREQUENCY GENERATOR TO DEVELOP ERROR SIGNALS WHOSE MAGNITUDE AND POLARITY CORRESPOND TO THE DIFFERENCE BETWEEN SAID PHASE AND THE PHASE OF A REFERENCE SIGNAL, C. A SAMPLING FREQUENCY GENERATOR FOR CONTROLLING THE SAMPLING RATE OF SAID SAMPLING MEANS, SAID SAMPLING FREQUENCY GENERATOR HAVING A FREQUENCY SUCH THAT WHEN THE OUTPUT SIGNAL FROM SAID VARIABLE FREQUENCY
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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |