US3206685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-linear amplifier circuit
Assignee: Motors Liquidation Co
•
Filing: 1961-06-13
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Granted: 1965-09-14
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Expires: 1981-06-13
Abstract
No abstract record available.
Inventors
- 👤 John C Polasek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:26
CPC Classifications
H; H03; H03G; H03G11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A NON-LINEAR AMPLIFIER CIRCUIT OF THE PUSH-PULL TYPE COMPRISING A PLURALITY OF CASCADED AMPLIFYING STAGES, EACH STAGE INCLUDING A PAIR OF AMPLIFYING DEVICES, AN INPUT CIRCUIT CONNECTED TO THE FIRST OF THE STAGES TO RECEIVE FOR AMPLIFICATION AN ALTERNATING INPUT SIGNAL OF VARIABLE AMPLITUDE, AN OUTPUT CIRCUIT CONNECTED TO THE LAST OF THE STAGES FOR CONNECTION TO A LOAD DEVICE, A PAIR OF NEGATIVE FEEDBACK PATHS CONNECTED BETWEEN THE FIRST AND LAST STAGES TENDING TO STABILIZE THE GAIN OF THE CIRCUIT, A PAIR OF POSITIVE FEEDBACK PATHS CONNECTED BETWEEN THE FIRST AND LAST STAGES TENDING TO INCREASE THE GAIN OF THE CIRCUIT, SWITCHING MEANS INTERCONNECTING THE POSITIVE AND NEGATIVE FEEDBACK PATHS AND RESPONSIVE TO THE MAGNITUDE AND POLARITY OF THE OUTPUT SIGNAL TO SWITCH A PORTION OF EACH OF THE POSITIVE FEEDBACK PATHS INTO PARALLEL CIRCUIT RELATION WITH A RESPECTIVE NEGATIVE FEEDBACK PATH FOR ALL INPUT SIGNAL MAGNITUDES GREATER THAN A PREDETERMINED VALUE, THEREBY LOWERING THE GAIN OF THE AMPLIFIER CIRCUIT TO VALUE SUBSTANTIALLY LESS THAN THAT WHICH EXISTS AT INPUT SIGNAL VALUES SMALLER THAN THE PREDETERMINED VALUE.
Claim 2
Dependent Claim
178 words
A NON-LINEAR AMPLIFIER CIRCUIT OF THE PUSH-PULL TYPE COMPRISING A PLURALITY OF CASCADED AMPLIFYING STAGES, EACH STAGE INCLUDING A PAIR OF AMPLIFYING DEVICES, AN INPUT CIRCUIT CONNECTED TO THE FIRST OF THE STAGES TO RECEIVE FOR AMPLIFICATION AN ALTERNATING INPUT SIGNAL OF VARIABLE AMPLITUDE, AN OUTPUT CIRCUIT CONNECTED TO THE LAST OF THE STAGES FOR CONNECTION TO A LOAD DEVICE, A PAIR OF NEGATIVE FEEDBACK PATHS CONNECTED BETWEEN THE FIRST AND LAST STAGES TENDING TO STABILIZE THE GAIN OF THE CIRCUIT, A PAIR OF POSITIVE FEEDBACK PATHS CONNECTED BETWEEN THE FIRST AND LAST STAGES TENDING TO INCREASE THE GAIN OF THE CIRCUIT, SWITCHING MEANS INTERCONNECTING THE POSITIVE AND NEGATIVE FEEDBACK PATHS AND RESPONSIVE TO THE MAGNITUDE AND POLARITY OF THE OUTPUT SIGNAL TO SWITCH A PORTION OF EACH OF THE POSITIVE FEEDBACK PATHS INTO PARALLEL CIRCUIT RELATION WITH A RESPECTIVE NEGATIVE FEEDBACK PATH FOR ALL INPUT SIGNAL MAGNITUDES GREATER THAN A PREDETERMINED VALUE, THEREBY LOWERING THE GAIN OF THE AMPLIFIER CIRCUIT TO VALUE SUBSTANTIALLY LESS THAN THAT WHICH EXISTS AT INPUT SIGNAL VALUES SMALLER THAN THE PREDETERMINED VALUE.
References Cited (Backward Citations)
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |