US3129390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic frequency control systems for oscillation generators
Assignee: BAE Systems Electronics Ltd
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Filing: 1960-08-29
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Granted: 1964-04-14
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Expires: 1980-08-29
Abstract
No abstract record available.
Inventors
- 👤 March Roy Collins
- 👤 Howe John Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:07
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/04; H04N5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
AN AUTOMATIC FREQUENCY CONTROL SYSTEM FOR AN OSCILLATION GENERATOR ADAPTED TO BE CONTROLLED IN FREQENCY BY A CONTROL POTENTIAL SUPPLIED THERETO, SAID SYSTEM COMPRISING SAID OSCILLATION GENERATOR, A PLUSE SOURCE COUPLED TO THE OUTPUT OF SAID GENERATOR AND ADAPTED TO PROVIDE A TRAIN OF OUTPUT PULSES HAVING ANY OF A PLURALITY OF DIFFERENT WIDTHS INTER SE, A SWITCH DEVICE COUPLED TO SAID PULSE SOURCE TO CAUSE SAID PULSE SOURCE TO GENERATOR ONE OR OTHER OF THE DIFFERENT WIDTHS OF OUTPUT PULSE IN DEPENDENCE UPON THE CONDITION OF SAID SWITCH DEVICE, A REFERENCE FREQUENCY SOURCE MEANS COUPLED TO SAID SWITCH AND TO SAID REFERENCE FREQUENCY SOURCE AND RESPONSIVE TO A WAVE DERIVED FROM SAID REFERENCE FREQUENCY SOURCE FOR ACTUATING SAID SWITCH DEVICE TO CAUSE SAID PULSE SOURCE TO GENERATE THE NARROWEST PULSE WIDTH OF SAID OUTPUT PULSES WHEN THE PHASE RELA-
Claim 2
Dependent Claim
140 words
AN AUTOMATIC FREQUENCY CONTROL SYSTEM FOR AN OSCILLATION GENERATOR ADAPTED TO BE CONTROLLED IN FREQENCY BY A CONTROL POTENTIAL SUPPLIED THERETO, SAID SYSTEM COMPRISING SAID OSCILLATION GENERATOR, A PLUSE SOURCE COUPLED TO THE OUTPUT OF SAID GENERATOR AND ADAPTED TO PROVIDE A TRAIN OF OUTPUT PULSES HAVING ANY OF A PLURALITY OF DIFFERENT WIDTHS INTER SE, A SWITCH DEVICE COUPLED TO SAID PULSE SOURCE TO CAUSE SAID PULSE SOURCE TO GENERATOR ONE OR OTHER OF THE DIFFERENT WIDTHS OF OUTPUT PULSE IN DEPENDENCE UPON THE CONDITION OF SAID SWITCH DEVICE, A REFERENCE FREQUENCY SOURCE MEANS COUPLED TO SAID SWITCH AND TO SAID REFERENCE FREQUENCY SOURCE AND RESPONSIVE TO A WAVE DERIVED FROM SAID REFERENCE FREQUENCY SOURCE FOR ACTUATING SAID SWITCH DEVICE TO CAUSE SAID PULSE SOURCE TO GENERATE THE NARROWEST PULSE WIDTH OF SAID OUTPUT PULSES WHEN THE PHASE RELA-
References Cited (Backward Citations)
US2790905A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |