Patent US86213A successfully refreshed from Google Patents.
US3299367A
Expired / Lapsed
US
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Feedback amplifier
Assignee: SDS Data Systems Inc
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Filing: 1960-05-31
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Granted: 1967-01-17
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Expires: 1980-05-31
Abstract
No abstract record available.
Inventors
- 👤 Patrick F Howden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:57
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/34; H03F1/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A HIGH GAIN AMPLIFIER, COMPRISING: A POSITIVE GAIN AMPLIFIER FOR RECEIVING A LOW LEVEL INPUT SIGNAL AND FOR PROVIDING AN OUTPUT SIGNAL PROPORTIONAL THERETO; A NEGATIVE GAIN AMPLIFIER CONNECTED TO BE RESPONSIVE TO THE OUTPUT SIGNAL FROM SAID FIRST AMPLIFIER FOR PROVIDING AN OUTPUT SIGNAL PROPORTIONAL THERETO; AN INTEGRATING CIRCUIT CONNECTED FOR INTEGRATING THE OUTPUT SIGNAL OF SAID NEGATIVE GRAIN AMPLIFIER; A DEGENERATIVE FEEDBACK CIRCUIT FOR COUPLING THE INTEGRATED SIGNAL FROM SAID INTEGRATING CIRCUIT TO THE INPUT OF SAID FIRST AMPLIFIER; AND A CAPACTIVE FEEDBACK CIRCUIT CONNECTED FOR APPLYING A SIGNAL PROPORTIONAL TO THE OUTPUT SIGNAL OF SAID POSITIVE GAIN AMPLIFIER TO THE INPUT OF SAID POSITIVE GAIN AMPLIFIER THE INTEGRATING CIRCUIT AND CAPACITIVE FEEDBACK CIRCUITS THEREBY COOPERATING TO COMPENSATE FOR DELETERIOUS CAPACITANCE IN THE AMPLIFIERS FOR CAUSING THE AMPLIFIERS TO FORM A STABLE AMPLIFIER WITH HIGH GAIN AND WIDE BAND WIDTH CHARACTERISTICS.
Claim 2
Dependent Claim
143 words
A HIGH GAIN AMPLIFIER, COMPRISING: A POSITIVE GAIN AMPLIFIER FOR RECEIVING A LOW LEVEL INPUT SIGNAL AND FOR PROVIDING AN OUTPUT SIGNAL PROPORTIONAL THERETO; A NEGATIVE GAIN AMPLIFIER CONNECTED TO BE RESPONSIVE TO THE OUTPUT SIGNAL FROM SAID FIRST AMPLIFIER FOR PROVIDING AN OUTPUT SIGNAL PROPORTIONAL THERETO; AN INTEGRATING CIRCUIT CONNECTED FOR INTEGRATING THE OUTPUT SIGNAL OF SAID NEGATIVE GRAIN AMPLIFIER; A DEGENERATIVE FEEDBACK CIRCUIT FOR COUPLING THE INTEGRATED SIGNAL FROM SAID INTEGRATING CIRCUIT TO THE INPUT OF SAID FIRST AMPLIFIER; AND A CAPACTIVE FEEDBACK CIRCUIT CONNECTED FOR APPLYING A SIGNAL PROPORTIONAL TO THE OUTPUT SIGNAL OF SAID POSITIVE GAIN AMPLIFIER TO THE INPUT OF SAID POSITIVE GAIN AMPLIFIER THE INTEGRATING CIRCUIT AND CAPACITIVE FEEDBACK CIRCUITS THEREBY COOPERATING TO COMPENSATE FOR DELETERIOUS CAPACITANCE IN THE AMPLIFIERS FOR CAUSING THE AMPLIFIERS TO FORM A STABLE AMPLIFIER WITH HIGH GAIN AND WIDE BAND WIDTH CHARACTERISTICS.
References Cited (Backward Citations)
US2240600A
Cited
US2924781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |