Patent US3393380A successfully refreshed from Google Patents.
US3393380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase locked phase modulator including a voltage controlled oscillator
Assignee: National Aeronautics and Space Administration
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Filing: 1966-03-15
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Granted: 1968-07-16
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Expires: 1986-03-15
Abstract
No abstract record available.
Inventors
- 👤 James E Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:16
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/02; H03C3/09; H03C3/0908; H03C3/0975
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A PHASE LOCKED PHASE MODULATOR COMPRISING VOLTAGE CONTROLLED OSCILLATOR MEANS FOR PRODUCING OUTPUT SIGNALS WHOSE FREQUENCY IS DETERMINED BY THE VOLTAGE OF AN INPUT SIGNAL APPLIED THERETO, MEANS FOR GENERATING REFERENCE SIGNALS HAVING A STABLE PHASE AND FREQUENCY, MEANS FOR COMPARING THE PHASE OF SAID OUTPUT SIGNALS WITH SAID REFERENCE SIGNALS TO PRODUCE ERROR SIGNALS REPRESENTATIVE OF THE DIFFERENCE OF THESE, A SOURCE OF MODULATING SIGNALS, MEANS FOR COMBINING SAID ERROR SIGNALS WITH MODULATING
Claim 2
Dependent Claim
74 words
A PHASE LOCKED PHASE MODULATOR COMPRISING VOLTAGE CONTROLLED OSCILLATOR MEANS FOR PRODUCING OUTPUT SIGNALS WHOSE FREQUENCY IS DETERMINED BY THE VOLTAGE OF AN INPUT SIGNAL APPLIED THERETO, MEANS FOR GENERATING REFERENCE SIGNALS HAVING A STABLE PHASE AND FREQUENCY, MEANS FOR COMPARING THE PHASE OF SAID OUTPUT SIGNALS WITH SAID REFERENCE SIGNALS TO PRODUCE ERROR SIGNALS REPRESENTATIVE OF THE DIFFERENCE OF THESE, A SOURCE OF MODULATING SIGNALS, MEANS FOR COMBINING SAID ERROR SIGNALS WITH MODULATING
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |