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Patent US3105941A successfully refreshed from Google Patents.
US3105941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parametric amplifier with balanced self-resonant diodes
Assignee: Cutler Hammer Inc
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Filing: 1962-05-01
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Granted: 1963-10-01
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Expires: 1982-05-01
Abstract
No abstract record available.
Inventors
- 👤 Kliphuis Jans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:11
CPC Classifications
H; H03; H03F; H03F7/00; H03F7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN A PARAMETRIC AMPLIFIER, THE COMBINATION WHICH COMPRISES (A) A PAIR OS SUBSTANTIALLY MATCHED VARIABLE CAPACITRANCE DIODES CONNECTED IN SERIES TO PROVIDE AN IDLER CIRCUIT, (B) MEANS FOR SUPPLYING PUMP FREQUENCY POWER TO VARY THE VARIABLE CAPACITANCES OF SAID DIODES IN BALANCED PHASE OPPOSITION WITH RESPECT TO A JUNCTION THEREBETWEEN, (C) AND MEANS FOR SUPPLYING SIGNALS TO SAID JUNCTION, (D) SAID PUMP FREQUENCY BEING HIGH COMPARED TO THE FREQUENCY OF SIGNALS SUPPLIED TO SAID JUNCTION TO PRODUCE AN IDLER FREQUENCY EQUAL TO THE DIFFERENCE THEREBETWEEN WHICH IS SUBSTANTIALLY HIGHER THAN THE SIGNAL FREQUENCY,
Claim 2
Dependent Claim
93 words
IN A PARAMETRIC AMPLIFIER, THE COMBINATION WHICH COMPRISES (A) A PAIR OS SUBSTANTIALLY MATCHED VARIABLE CAPACITRANCE DIODES CONNECTED IN SERIES TO PROVIDE AN IDLER CIRCUIT, (B) MEANS FOR SUPPLYING PUMP FREQUENCY POWER TO VARY THE VARIABLE CAPACITANCES OF SAID DIODES IN BALANCED PHASE OPPOSITION WITH RESPECT TO A JUNCTION THEREBETWEEN, (C) AND MEANS FOR SUPPLYING SIGNALS TO SAID JUNCTION, (D) SAID PUMP FREQUENCY BEING HIGH COMPARED TO THE FREQUENCY OF SIGNALS SUPPLIED TO SAID JUNCTION TO PRODUCE AN IDLER FREQUENCY EQUAL TO THE DIFFERENCE THEREBETWEEN WHICH IS SUBSTANTIALLY HIGHER THAN THE SIGNAL FREQUENCY,
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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |