Patent US3199044A successfully refreshed from Google Patents.
US3199044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic gain control apparatus for pulse signal handling systems
Assignee: General Dynamics Corp
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Filing: 1962-05-14
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Granted: 1965-08-03
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 George F Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:55
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/3052; H03G3/3073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A NAVIGATION RADIO RECEIVER FOR DETECTING PAIRS OF PULSES OF RADIO FREQUENCY ENERGY OF PRESCRIBED SPACING, SAID RECEIVER COMPRISING A VARIABLE GAIN AMPLIFIER, A DETECTOR COUPLED TO SAID AMPLIFIER FOR PRODUCING PAIRS OF VOLTAGE PULSES CORRESPONDING TO SAID PAIRS OF PULSES OF RADIO FREQUENCY, A DECODER COUPLED TO THE OUTPUT OF SAID DETECTOR FOR PRODUCING AN OUTPUT PULSE WHEN PULSES OF SAID PRESCRIBED SPACING OCCUR IN THE DETECTOR OUTPUT; A FIRST AUTOMATIC GAIN CONTROL CIRCUIT, SAID CIRCUIT BEING COUPLED BETWEEN THE OUTPUT OF SAID DECODER AND THE GAIN CONTROL ELECTRODE OF SAID AMPLIFIER FOR CONTINUOUSLY ADJUSTING THE AMPLIFIER GAIN ACCORDING TO OUTPUT PULSE AMPLITUDE, A SECOND AUTOMATIC GAIN CONTROL CIRCUIT, SAID SECOND CIRCUIT BEING COUPLED BETWEEN THE INPUT OF SAID DECODER AND SAID GAIN CONTROL ELECTRODE, AND A BLOCKING CONDENSER IN SAID SECOND CIRCUIT FOR AFFECTING SAID GAIN CONTROL ELECTRODE ONLY IN RESPONSE TO SIGNAL VOLTAGES WHICH CHANGE RELATIVELY RAPIDLY.
Claim 2
Dependent Claim
150 words
A NAVIGATION RADIO RECEIVER FOR DETECTING PAIRS OF PULSES OF RADIO FREQUENCY ENERGY OF PRESCRIBED SPACING, SAID RECEIVER COMPRISING A VARIABLE GAIN AMPLIFIER, A DETECTOR COUPLED TO SAID AMPLIFIER FOR PRODUCING PAIRS OF VOLTAGE PULSES CORRESPONDING TO SAID PAIRS OF PULSES OF RADIO FREQUENCY, A DECODER COUPLED TO THE OUTPUT OF SAID DETECTOR FOR PRODUCING AN OUTPUT PULSE WHEN PULSES OF SAID PRESCRIBED SPACING OCCUR IN THE DETECTOR OUTPUT; A FIRST AUTOMATIC GAIN CONTROL CIRCUIT, SAID CIRCUIT BEING COUPLED BETWEEN THE OUTPUT OF SAID DECODER AND THE GAIN CONTROL ELECTRODE OF SAID AMPLIFIER FOR CONTINUOUSLY ADJUSTING THE AMPLIFIER GAIN ACCORDING TO OUTPUT PULSE AMPLITUDE, A SECOND AUTOMATIC GAIN CONTROL CIRCUIT, SAID SECOND CIRCUIT BEING COUPLED BETWEEN THE INPUT OF SAID DECODER AND SAID GAIN CONTROL ELECTRODE, AND A BLOCKING CONDENSER IN SAID SECOND CIRCUIT FOR AFFECTING SAID GAIN CONTROL ELECTRODE ONLY IN RESPONSE TO SIGNAL VOLTAGES WHICH CHANGE RELATIVELY RAPIDLY.
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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |