US3259851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital system for stabilizing the operation of a variable frequency oscillator
Assignee: Avco Corp
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Filing: 1961-11-01
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Granted: 1966-07-05
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Expires: 1981-11-01
Abstract
No abstract record available.
Inventors
- 👤 Frank M Brauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:32
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06; H03L7/16; H03L7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN A SYSTEM FOR GENERATING A PLURALITY OF FREQUENCY STABILIZED OSCILLATIONS, THE COMBINATION COMPRISING; A VARIABLE FREQUENCY OSCILLATOR FOR GENERATING A PRESELECTED NUMBER OF CYCLES DURING A GIVEN TIME PERIOD; A REACTANCE CONTROL DEVICE CONNECTED TO SAID OSCILLATOR FOR ADJUSTING THE FREQUENCY OF SAID OSCILLATOR IN RESPONSE TO THE APPLICATION OF AN ERROR SIGNAL; A COUNTER FOR COUNTING THE NUMBER OF CYCLES GENERATED BY SAID OSCILLATOR AND FOR GENERATING A DIRECT VOLTAGE PULSE FOR EACH CYCLE COUNTED; FIRST AND SECOND CLOSED GATED, EACH HAVING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT; MEANS FOR APPLYING SAID PULSES TO THE INPUT CIRCUIT OF EACH OF SAID CLOSED GATES, THE POLARITY OF THE PULSES APPLIED TO ONE OF SAID GATED BEING INVERTED; A POLARITY SENSITIVE DEVICE FOR GENERATING AN ERROR VOLTAGE HAVING A MAGNITUDE AND A POLADRITY DEPENDENT ON THE NUMBER AND POLARITY OF THE PULSES APPLIED
Claim 2
Dependent Claim
144 words
IN A SYSTEM FOR GENERATING A PLURALITY OF FREQUENCY STABILIZED OSCILLATIONS, THE COMBINATION COMPRISING; A VARIABLE FREQUENCY OSCILLATOR FOR GENERATING A PRESELECTED NUMBER OF CYCLES DURING A GIVEN TIME PERIOD; A REACTANCE CONTROL DEVICE CONNECTED TO SAID OSCILLATOR FOR ADJUSTING THE FREQUENCY OF SAID OSCILLATOR IN RESPONSE TO THE APPLICATION OF AN ERROR SIGNAL; A COUNTER FOR COUNTING THE NUMBER OF CYCLES GENERATED BY SAID OSCILLATOR AND FOR GENERATING A DIRECT VOLTAGE PULSE FOR EACH CYCLE COUNTED; FIRST AND SECOND CLOSED GATED, EACH HAVING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT; MEANS FOR APPLYING SAID PULSES TO THE INPUT CIRCUIT OF EACH OF SAID CLOSED GATES, THE POLARITY OF THE PULSES APPLIED TO ONE OF SAID GATED BEING INVERTED; A POLARITY SENSITIVE DEVICE FOR GENERATING AN ERROR VOLTAGE HAVING A MAGNITUDE AND A POLADRITY DEPENDENT ON THE NUMBER AND POLARITY OF THE PULSES APPLIED
References Cited (Backward Citations)
US2490500A
Cited
GB839422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |