US3328718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precise tuning voltage supply for variable frequency oscillator
Assignee: Melpar Inc
•
Filing: 1966-07-27
•
Granted: 1967-06-27
•
Expires: 1986-07-27
Abstract
No abstract record available.
Inventors
- 👤 Jack T Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:25
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A TUNING VOLTAGE SUPPLY FOR A VOLTAGE TUNED VARIABLE FREQUENCY OSCILLATOR, COMPRISING A REFERENCE OSCILLATOR HAVING A STABLE FIXED FREQUENCY OF OSCILLATION, VOLTAGE CONTROLLED OSCILLATOR HAVING A VARIABLE OSCILLATION FREQUENCY, A PHASE DETECTOR RESPONSIVE TO THE OUTPUT SIGNALS OF SAID REFERENCE OSCILLATOR AND SAID CONTROLLED OSCILLATOR FOR GENERATING AN OUTPUT PROPORTIONAL TO THE PRODUCT OF THE EFFECTIVE VALUES THEREOF, AN AMPLIFIER, A LOW PASS FILTER FOR SUPPLYING THE OUTPUT OF SAID DETECTOR TO SAID AMPLIFIER MEANS FOR APPLYING THE OUTPUT VOLTAGE OF SAID AMPLIFIER TO SAID VOLTAGE CONTROLLED OSCILLATOR AS AN INPUT THEREOF, A POTENTIOMETER HAVING A VARIABLE VOLTAGE TAP, MEANS COULING THE OUTPUT VOLTAGE OF SAID AMPLIFIER TO SAID POTENTIOMETER AS THE REFERENCE VOLTAGE SUPPLY THEREFOR, AND MEANS CONNECTING SAID VOLTAGE TUNED VARIABLE FREQUENCY OSCILLATOR TO SAID VARIABLE VOLTAGE TAP TO PROVIDE THE TUNING VOLTAGE FOR THE LAST-NAMED OSCILLATOR.
Claim 2
Dependent Claim
140 words
A TUNING VOLTAGE SUPPLY FOR A VOLTAGE TUNED VARIABLE FREQUENCY OSCILLATOR, COMPRISING A REFERENCE OSCILLATOR HAVING A STABLE FIXED FREQUENCY OF OSCILLATION, VOLTAGE CONTROLLED OSCILLATOR HAVING A VARIABLE OSCILLATION FREQUENCY, A PHASE DETECTOR RESPONSIVE TO THE OUTPUT SIGNALS OF SAID REFERENCE OSCILLATOR AND SAID CONTROLLED OSCILLATOR FOR GENERATING AN OUTPUT PROPORTIONAL TO THE PRODUCT OF THE EFFECTIVE VALUES THEREOF, AN AMPLIFIER, A LOW PASS FILTER FOR SUPPLYING THE OUTPUT OF SAID DETECTOR TO SAID AMPLIFIER MEANS FOR APPLYING THE OUTPUT VOLTAGE OF SAID AMPLIFIER TO SAID VOLTAGE CONTROLLED OSCILLATOR AS AN INPUT THEREOF, A POTENTIOMETER HAVING A VARIABLE VOLTAGE TAP, MEANS COULING THE OUTPUT VOLTAGE OF SAID AMPLIFIER TO SAID POTENTIOMETER AS THE REFERENCE VOLTAGE SUPPLY THEREFOR, AND MEANS CONNECTING SAID VOLTAGE TUNED VARIABLE FREQUENCY OSCILLATOR TO SAID VARIABLE VOLTAGE TAP TO PROVIDE THE TUNING VOLTAGE FOR THE LAST-NAMED OSCILLATOR.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |