US3333117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of resistive feedback in unbalanced r-c integrator
Assignee: Collins Radio Co
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Filing: 1965-02-10
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Granted: 1967-07-25
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Expires: 1985-02-10
Abstract
No abstract record available.
Inventors
- 👤 Robert C Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:57
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/18; G06G7/184
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN INTEGRATOR COMPRISING FIRST SIGNAL AMPLIFYING MEANS TO WHICH AN INPUT SIGNAL IS APPLIED, SAID FIRST AMPLIFYING MEANS HAVING A HIGH OUTPUT IMPEDANCE, A SIGNAL COUPLING CAPACITOR CONNECTED BETWEEN THE OUTPUT OF SAID FIRST AMPLIFYING MEANS AND A FIRST OUTPUT TERMINAL, A CAPACITVE ELEMENT CONNECTED BETWEEN SAID FIRST OUTPUT TERMINAL AND A COMMON GROUND, SAID INPUT SIGNAL AND FIRST SIGNAL AMPLIFIER BEING REFERENCE TO SAID COMMON GROUND, A UNITY GAIN AMPLIFIER CONNECTED TO SAID FIRST OUTPUT TERMINAL, THE OUTPUT OF SAID UNITY GAIN AMPLIFIER CONNECTED THROUGH A RESISTIVE MEMBER TO THE OUTPUT OF SAID FIRST SIGNAL AMPLIFYING MEANS, WHEREBY THE POTENTIAL DROP ACROSS SAID RESISTIVE MEMBER IS ESSENTIALLY ZERO AND DISCHARGE CURRENT THERETHROUGH FROM SAID CAPACITIVE MEANS IS SUBSTANTIALLY OBVIATED.
Claim 2
Dependent Claim
120 words
AN INTEGRATOR COMPRISING FIRST SIGNAL AMPLIFYING MEANS TO WHICH AN INPUT SIGNAL IS APPLIED, SAID FIRST AMPLIFYING MEANS HAVING A HIGH OUTPUT IMPEDANCE, A SIGNAL COUPLING CAPACITOR CONNECTED BETWEEN THE OUTPUT OF SAID FIRST AMPLIFYING MEANS AND A FIRST OUTPUT TERMINAL, A CAPACITVE ELEMENT CONNECTED BETWEEN SAID FIRST OUTPUT TERMINAL AND A COMMON GROUND, SAID INPUT SIGNAL AND FIRST SIGNAL AMPLIFIER BEING REFERENCE TO SAID COMMON GROUND, A UNITY GAIN AMPLIFIER CONNECTED TO SAID FIRST OUTPUT TERMINAL, THE OUTPUT OF SAID UNITY GAIN AMPLIFIER CONNECTED THROUGH A RESISTIVE MEMBER TO THE OUTPUT OF SAID FIRST SIGNAL AMPLIFYING MEANS, WHEREBY THE POTENTIAL DROP ACROSS SAID RESISTIVE MEMBER IS ESSENTIALLY ZERO AND DISCHARGE CURRENT THERETHROUGH FROM SAID CAPACITIVE MEANS IS SUBSTANTIALLY OBVIATED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |