US3332017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined alc and power level transmitter control
Assignee: Collins Radio Co
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Filing: 1965-04-02
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Granted: 1967-07-18
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Expires: 1985-04-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Tom L Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:02
CPC Classifications
H; H03; H03G; H03G7/00; H03G7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A RADIO TRANSMITTING SYSTEM HAVING POWER AMPLIFIER, AND AUTOMATIC LOAD CONTROL CIRCUITRY, FOR CONTROLLING THE GAIN OF THE TRANSMITTING SYSTEM, COMBINED WITH VARIABLE POWER LEVEL CONTROL CIRCUITRY; SAID COMBINED CIRCUITRY INCLUDING: A CONTROL ELEMENT IN SAID POWER AMPLIFIER; A MINUS VOLTAGE BIAS SOURCE; A VOLTAGE BIAS ADJUSTMENT POTENTIOMETER HAVING OPPOSITE ENDS AND A MOVABLE TAP, WITH THE ENDS CONNECTED TO THE MINUS VOLTAGE BIAS SOURCE AND A RELATIVELY HIGHER VOLTAGE LEVEL REFERENCE, RESPECTIVELY, AND WITH SAID MOVABLE TAP CONNECTED TO THE CONTROL ELEMENT IN SAID POWER AMPLIFIER; THE MOVABLE TAP OF SAID VOLTAGE BIAS ADJUSTMENT POTENTIOMETER ALSO BEING CONNECTED TO AN END OF A POWER LEVEL CONTROL POTENTIOMETER, AND THROUGH THE POWER LEVEL CONTROL POTENTIOMETER TO A VOLTAGE POTENTIAL REFERENCE; SAID POWER LEVEL CONTROL POTENTIOMETER HAVING A MOVABLE TAP CONNECTED TO A FIRST PORTION OF AN RF SIGNAL LINE SEPARATED BY AN RF SIGNAL COUPLING CAPACITOR FROM A SECOND PORTION OF THE RF SIGNAL LINE CONNECTED TO SAID CONTROL ELEMENT OF SAID POWER AMPLIFIER; THE CONNECTION OF THE POWER LEVEL CONTROL POTENTIOMETER TAP TO SAID FIRST RF LINE PORTION BEING A CONNECTION THROUGH A SERIALLY CONNECTED RESISTOR AND DIODE; AND ALC CIRCUITRY CONNECTED TO THE COMMON JUNCTION OF SAID RESISTOR AND SAID DIODE.
Claim 2
Dependent Claim
203 words
A RADIO TRANSMITTING SYSTEM HAVING POWER AMPLIFIER, AND AUTOMATIC LOAD CONTROL CIRCUITRY, FOR CONTROLLING THE GAIN OF THE TRANSMITTING SYSTEM, COMBINED WITH VARIABLE POWER LEVEL CONTROL CIRCUITRY; SAID COMBINED CIRCUITRY INCLUDING: A CONTROL ELEMENT IN SAID POWER AMPLIFIER; A MINUS VOLTAGE BIAS SOURCE; A VOLTAGE BIAS ADJUSTMENT POTENTIOMETER HAVING OPPOSITE ENDS AND A MOVABLE TAP, WITH THE ENDS CONNECTED TO THE MINUS VOLTAGE BIAS SOURCE AND A RELATIVELY HIGHER VOLTAGE LEVEL REFERENCE, RESPECTIVELY, AND WITH SAID MOVABLE TAP CONNECTED TO THE CONTROL ELEMENT IN SAID POWER AMPLIFIER; THE MOVABLE TAP OF SAID VOLTAGE BIAS ADJUSTMENT POTENTIOMETER ALSO BEING CONNECTED TO AN END OF A POWER LEVEL CONTROL POTENTIOMETER, AND THROUGH THE POWER LEVEL CONTROL POTENTIOMETER TO A VOLTAGE POTENTIAL REFERENCE; SAID POWER LEVEL CONTROL POTENTIOMETER HAVING A MOVABLE TAP CONNECTED TO A FIRST PORTION OF AN RF SIGNAL LINE SEPARATED BY AN RF SIGNAL COUPLING CAPACITOR FROM A SECOND PORTION OF THE RF SIGNAL LINE CONNECTED TO SAID CONTROL ELEMENT OF SAID POWER AMPLIFIER; THE CONNECTION OF THE POWER LEVEL CONTROL POTENTIOMETER TAP TO SAID FIRST RF LINE PORTION BEING A CONNECTION THROUGH A SERIALLY CONNECTED RESISTOR AND DIODE; AND ALC CIRCUITRY CONNECTED TO THE COMMON JUNCTION OF SAID RESISTOR AND SAID DIODE.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |