Patent US2724171A successfully refreshed from Google Patents.
US3141136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feedback amplifier gate
Assignee: TDK Micronas GmbH
•
Filing: 1958-07-03
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Granted: 1964-07-14
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Expires: 1978-07-03
Abstract
No abstract record available.
Inventors
- 👤 Carmine N Pagano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:40
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A DEVICE FOR GATING THE INPUT SIGNALS TO A FEEDBACK AMPLIFIER HAVING NEGATIVE FEEDBACK IMPEDANCE COUPLING THE OUTPUT TO THE INPUT THEREOF COMPRISING A SEPARATE IMPEDANCE COUPLING EACH OF SAID INPUT SIGNALS TO A COMMON JUNCTION, AN IMPEDANCE COUPLING SAID COMMON JUNCTION TO SAID AMPLIFIER INPUT, FIRST VOLTAGE DIVIDING MEANS PRODUCING A POSITIVE POTENTIAL AT A FIRST TERMINAL, SECOND VOLTAGE DIVIDING MEANS PRODUCING A NEGATIVE POTENTIAL AT A SECOND TERMINAL, UNIDIRECTIONAL CONDUCTIVE DEVICES COUPLING SAID FIRST AND SECOND TERMINALS TO SAID COMMON JUNCTION AND SWITCHING MEANS FOR APPLYING CONTROL SIGNALS TO SAID FIRST AND SECOND VOLTAGE DIVIDERS, SWITCH CONTROL MEANS COUPLED TO SAID SWITCHING MEANS FOR CONTROLLING SAID SWITCHING MEANS AT CONTROLLED INTERVALS WHEREBY THE POTENTIALS AT SAID FIRST AND SECOND TERMINALS MAY BE CONTROLLED SO THAT THE POTENTIAL AT SAID COMMON JUNCTION IS PLACED SUBSTANTIALLY AT GROUND DURING SAID CONTROLLED INTERVALS, THE VALUE OF SAID IMPEDANCE COUPLING SAID COMMON JUNCTION TO SAID AMPLIFIER BEING A FUNCTION OF SAID SEPARATE IMPEDANCES AND THE IMPEDANCE OF SAID VOLTAGE DIVIDING MEANS TOGETHER WITH SAID UNIDIRECTIONAL CONDUCTIVE DEVICES.
Claim 2
Independent Claim
175 words
A DEVICE FOR GATING THE INPUT SIGNALS TO A FEEDBACK AMPLIFIER HAVING NEGATIVE FEEDBACK IMPEDANCE COUPLING THE OUTPUT TO THE INPUT THEREOF COMPRISING A SEPARATE IMPEDANCE COUPLING EACH OF SAID INPUT SIGNALS TO A COMMON JUNCTION, AN IMPEDANCE COUPLING SAID COMMON JUNCTION TO SAID AMPLIFIER INPUT, FIRST VOLTAGE DIVIDING MEANS PRODUCING A POSITIVE POTENTIAL AT A FIRST TERMINAL, SECOND VOLTAGE DIVIDING MEANS PRODUCING A NEGATIVE POTENTIAL AT A SECOND TERMINAL, UNIDIRECTIONAL CONDUCTIVE DEVICES COUPLING SAID FIRST AND SECOND TERMINALS TO SAID COMMON JUNCTION AND SWITCHING MEANS FOR APPLYING CONTROL SIGNALS TO SAID FIRST AND SECOND VOLTAGE DIVIDERS, SWITCH CONTROL MEANS COUPLED TO SAID SWITCHING MEANS FOR CONTROLLING SAID SWITCHING MEANS AT CONTROLLED INTERVALS WHEREBY THE POTENTIALS AT SAID FIRST AND SECOND TERMINALS MAY BE CONTROLLED SO THAT THE POTENTIAL AT SAID COMMON JUNCTION IS PLACED SUBSTANTIALLY AT GROUND DURING SAID CONTROLLED INTERVALS, THE VALUE OF SAID IMPEDANCE COUPLING SAID COMMON JUNCTION TO SAID AMPLIFIER BEING A FUNCTION OF SAID SEPARATE IMPEDANCES AND THE IMPEDANCE OF SAID VOLTAGE DIVIDING MEANS TOGETHER WITH SAID UNIDIRECTIONAL CONDUCTIVE DEVICES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |