US3286191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Afc with offset frequency divider
Assignee: Gould Inc
•
Filing: 1965-04-08
•
Granted: 1966-11-15
•
Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 Charles M Cornwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:15
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/16; H03L7/18; H03L7/08; H03L7/10; H03L7/113; H03L7/183; H03L7/195
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A FREQUENCY SYNTHESIZER SYSTEM OF THE TYPE HAVING A VOLTAGE CONTROLLED OSCILLATOR, A CONTROLLED DIVIDER AND A PHASE DETECTOR FOR COMPARING THE OUTPUT OF THE CONTROLLED DIVIDER WITH A REFERENCE AND PRODUCING AN ERROR VOLTAGE FOR CONTROLLING THE OSCILLATOR, THE IMPROVEMENT COMPRISING MEANS CAUSING SAID OSCILLATOR TO GENERATE A FREQUENCY WHICH IS OFFSET FROM THE FREQUENCY SELECTED BY SAID CONTROLLED DIVIDER INCLUDING AN ADDITIONAL DIVIDER RESPONSIVE TO SAID OSCILLATOR FOR ESTABLISHING SAID FREQUENCY OFFSET, A GATE CONNECTED WITH AND CONTROLLED BY SAID ADDITIONAL DIVIDER, AND MEANS COUPLING SAID GATE BETWEEN SAID OSCILLATOR AND SAID CONTROLLED DIVIDER FOR PASSING THE OUTPUT OF SAID OSCILLATOR TO SAID CONTROLLED DIVIDER AFTER SAID GATE IS CONTROLLED BY SAID ADDITIONAL DIVIDER.
Claim 2
Dependent Claim
116 words
A FREQUENCY SYNTHESIZER SYSTEM OF THE TYPE HAVING A VOLTAGE CONTROLLED OSCILLATOR, A CONTROLLED DIVIDER AND A PHASE DETECTOR FOR COMPARING THE OUTPUT OF THE CONTROLLED DIVIDER WITH A REFERENCE AND PRODUCING AN ERROR VOLTAGE FOR CONTROLLING THE OSCILLATOR, THE IMPROVEMENT COMPRISING MEANS CAUSING SAID OSCILLATOR TO GENERATE A FREQUENCY WHICH IS OFFSET FROM THE FREQUENCY SELECTED BY SAID CONTROLLED DIVIDER INCLUDING AN ADDITIONAL DIVIDER RESPONSIVE TO SAID OSCILLATOR FOR ESTABLISHING SAID FREQUENCY OFFSET, A GATE CONNECTED WITH AND CONTROLLED BY SAID ADDITIONAL DIVIDER, AND MEANS COUPLING SAID GATE BETWEEN SAID OSCILLATOR AND SAID CONTROLLED DIVIDER FOR PASSING THE OUTPUT OF SAID OSCILLATOR TO SAID CONTROLLED DIVIDER AFTER SAID GATE IS CONTROLLED BY SAID ADDITIONAL DIVIDER.
References Cited (Backward Citations)
US2521789A
Cited
US3217267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |