US3109993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compression circuit
Assignee: Collins Radio Co
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Filing: 1959-09-04
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Granted: 1963-11-05
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Expires: 1979-09-04
Abstract
No abstract record available.
Inventors
- 👤 Robert O Blair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:19
CPC Classifications
H; H03; H03G; H03G7/00; H03G7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
IN CIRCUIT MEANS COMPRISING AN AMPLIFIER HAVING AN INPUT CIRCUIT, A COMPRESSOR CIRCUIT COMPRISING MEANS FOR RECTIFYING THE OUTPUT SIGNAL OF SAID AMPLIFIER, AN ELECTRON VALVE COMPRISING AN ELECTRON EMITTING ELECTRODE, AN ELECTRON COLLECTING ELECTRODE, AND AN ELECTRON CONTROL ELECTRODE, MEANS FOR SUPPLYING THE RECTIFIED OUTPUT SIGNAL OF SAID AMPLIFIER TO SAID ELECTRON CONTROL ELECTRODE, VOLTAGE DIVIDING MEANS HAVING A TAP THEREON, MEANS FOR SUPPLYING AN INPUT SIGNAL DIRECTLY ACROSS SAID VOLTAGE DIVIDER MEANS, MEANS FOR CONNECTING SAID TAP DIRECTLY TO SAID ELECTRON EMITTING ELECTRODE, MEANS FOR CAPACITIVELY COUPLING SAID TAP TO THE INPUT CIRCUIT OF SAID AMPLIFIER, THE SAID ELECTRON VALVE BEING CONSTRUCTED AND ARRANGED TO HAVE ITS IMPEDANCE, AS PRESENTED TO SAID TAP, VARY IN A PREDETERMINED MANNER IN RESPONSE TO THE MAGNITUDE OF THE RECTIFIED OUTPUT SIGNAL SUPPLIED TO SAID ELECTRON CONTROL ELECTRODE TO CONTROL THE AMPLITUDE OF THE SIGNAL SUPPLIED TO SAID INPUT CIRCUIT OF SAID AMPLIFIER, AND MEANS FOR BIASING SAID ELECTRON CONTROL ELECTRODE TO A VALUE BELOW THE ELECTRON COLLECTING ELECTRODE CURRENT CUT-OFF VALUE WHEN THE MAGNITUDE OF SAID RECTIFIED OUTPUT SIGNAL IS BELOW A PREDETERMINED VALUE.
Claim 2
Dependent Claim
183 words
IN CIRCUIT MEANS COMPRISING AN AMPLIFIER HAVING AN INPUT CIRCUIT, A COMPRESSOR CIRCUIT COMPRISING MEANS FOR RECTIFYING THE OUTPUT SIGNAL OF SAID AMPLIFIER, AN ELECTRON VALVE COMPRISING AN ELECTRON EMITTING ELECTRODE, AN ELECTRON COLLECTING ELECTRODE, AND AN ELECTRON CONTROL ELECTRODE, MEANS FOR SUPPLYING THE RECTIFIED OUTPUT SIGNAL OF SAID AMPLIFIER TO SAID ELECTRON CONTROL ELECTRODE, VOLTAGE DIVIDING MEANS HAVING A TAP THEREON, MEANS FOR SUPPLYING AN INPUT SIGNAL DIRECTLY ACROSS SAID VOLTAGE DIVIDER MEANS, MEANS FOR CONNECTING SAID TAP DIRECTLY TO SAID ELECTRON EMITTING ELECTRODE, MEANS FOR CAPACITIVELY COUPLING SAID TAP TO THE INPUT CIRCUIT OF SAID AMPLIFIER, THE SAID ELECTRON VALVE BEING CONSTRUCTED AND ARRANGED TO HAVE ITS IMPEDANCE, AS PRESENTED TO SAID TAP, VARY IN A PREDETERMINED MANNER IN RESPONSE TO THE MAGNITUDE OF THE RECTIFIED OUTPUT SIGNAL SUPPLIED TO SAID ELECTRON CONTROL ELECTRODE TO CONTROL THE AMPLITUDE OF THE SIGNAL SUPPLIED TO SAID INPUT CIRCUIT OF SAID AMPLIFIER, AND MEANS FOR BIASING SAID ELECTRON CONTROL ELECTRODE TO A VALUE BELOW THE ELECTRON COLLECTING ELECTRODE CURRENT CUT-OFF VALUE WHEN THE MAGNITUDE OF SAID RECTIFIED OUTPUT SIGNAL IS BELOW A PREDETERMINED VALUE.
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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |