US3214703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Negative feed-back amplifier
Assignee: Individual
•
Filing: 1964-07-14
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Granted: 1965-10-26
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Expires: 1984-07-14
Abstract
No abstract record available.
Inventors
- 👤 Franklin F Offner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:09
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/34; H03F1/36; H03F3/00; H03F3/38; H03F3/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN AN AMPLIFIER OF THE COMMUTATED INPUT TYPE, THE COMBINATION COMPRISING AN INPUT TRANSFORMER HAVING A PRIMARY COMPOSED OF FIRST AND SECOND WINDING PARTS AND A SECONDARY WINDING, ALTERNATING CURRENT AMPLIFYING MEANS HAVING ITS INPUT CONNECTED TO SAID SECONDARY WINDING, MEANS DERIVING FIRST AND SECOND ALTERNATING CURRENT NEGATIVE FEED-BACK SIGNALS FROM THE OUTPUT OF SAID AMPLIFYING MEANS, AN INPUT SIGNAL COMMUTATING MEANS ALTERNATELY, CONNECTING A SIGNAL SOURCE TO SAID FIRST AND SECOND PARTS OF SAID PRIMARY WINDING, CIRCUIT MEANS CONNECTING SAID FIRST ALTERNATING CURRENT NEGATIVE FEED-BACK SIGNAL IN SERIES WITH SAID FIRST PART OF SAID PRIMARY WINDING, AND CIRCUIT MEANS CONNECTING SAID SECOND ALTERNATING CURRENT NEGATIVE FEED-BACK SIGNAL IN SERIES WITH SAID SECOND PART OF SAID PRIMARY WINDING.
Claim 2
Dependent Claim
118 words
IN AN AMPLIFIER OF THE COMMUTATED INPUT TYPE, THE COMBINATION COMPRISING AN INPUT TRANSFORMER HAVING A PRIMARY COMPOSED OF FIRST AND SECOND WINDING PARTS AND A SECONDARY WINDING, ALTERNATING CURRENT AMPLIFYING MEANS HAVING ITS INPUT CONNECTED TO SAID SECONDARY WINDING, MEANS DERIVING FIRST AND SECOND ALTERNATING CURRENT NEGATIVE FEED-BACK SIGNALS FROM THE OUTPUT OF SAID AMPLIFYING MEANS, AN INPUT SIGNAL COMMUTATING MEANS ALTERNATELY, CONNECTING A SIGNAL SOURCE TO SAID FIRST AND SECOND PARTS OF SAID PRIMARY WINDING, CIRCUIT MEANS CONNECTING SAID FIRST ALTERNATING CURRENT NEGATIVE FEED-BACK SIGNAL IN SERIES WITH SAID FIRST PART OF SAID PRIMARY WINDING, AND CIRCUIT MEANS CONNECTING SAID SECOND ALTERNATING CURRENT NEGATIVE FEED-BACK SIGNAL IN SERIES WITH SAID SECOND PART OF SAID PRIMARY WINDING.
References Cited (Backward Citations)
US2901563A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |