US3252007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized non-linear feedback amplifier
Assignee: AT&T Inc
•
Filing: 1963-10-03
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Granted: 1966-05-17
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Expires: 1983-10-03
Abstract
No abstract record available.
Inventors
- 👤 Veikko R Saari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:01
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/34; H03G; H03G1/00; H03G1/0005; H03G1/0088
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AN AMPLIFIER FOR PRODUCING SIGNAL OUTPUTS NONLINEARLY RELATED TO THE SIGNAL INPUT COMPRISING AN AMPLIFIER HAVING A NOMINAL GAIN U, A NON-LINEAR NEGATIVE FEEDBACK NETWORK CONNECTED BETWEEN THE OUTPUT AND INPUT OF SAID AMPLIFIER FOR FEEDING BACK TO THE INPUT A TRACTION B OF THE OUTPUT SIGNAL, SAID FRACTION B VARYING WITH THE SIGNAL LEVEL, AND MEANS FOR VARYING THE NOMINAL GAIN U IN RESPONSE TO VARIATIONS IN SIGNAL LEVEL IN INVERSE PROPORTION TO THE VARIATIONS IN B.
Claim 2
Dependent Claim
78 words
AN AMPLIFIER FOR PRODUCING SIGNAL OUTPUTS NONLINEARLY RELATED TO THE SIGNAL INPUT COMPRISING AN AMPLIFIER HAVING A NOMINAL GAIN U, A NON-LINEAR NEGATIVE FEEDBACK NETWORK CONNECTED BETWEEN THE OUTPUT AND INPUT OF SAID AMPLIFIER FOR FEEDING BACK TO THE INPUT A TRACTION B OF THE OUTPUT SIGNAL, SAID FRACTION B VARYING WITH THE SIGNAL LEVEL, AND MEANS FOR VARYING THE NOMINAL GAIN U IN RESPONSE TO VARIATIONS IN SIGNAL LEVEL IN INVERSE PROPORTION TO THE VARIATIONS IN B.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |