US3092734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplitude limiter for a. c. signals using a tunnel diode
Assignee: RCA Corp
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Filing: 1959-12-18
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Granted: 1963-06-04
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Expires: 1979-12-18
Abstract
No abstract record available.
Inventors
- 👤 Gerald E Theriault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:05
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/04; H03F3/10; H03F3/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A SIGNAL LIMITING CIRCUIT COMPRISING A VOLTAGE CONTROLLED SEMICONDUCTOR TUNNEL DIODE HAVING AN OPERATING CHARACTERISTIC WITH TWO POSITIVE CONDUCTANCE PORTIONS SEPARATED BY A NEGATIVE CONDUCTANCE PORTION, MEANS FOR BIASING SAID DIODE TO OPERATE AT A SELECTED STABLE POINT ON ONE OF SAID POSITIVE CONDUCTANCE PORTIONS IN THE ABSENCE OF APPLIED SIGNALS, MEANS FOR LOADING SAID DIODE TO CONTROL OSCILLATION WHEN SIGNALS ARE APPLIED THERETO, MEANS FOR APPLYING SIGNALS TO SAID DIODE TO DRIVE SAID DIODE THROUGH SAID NEGATIVE CONDUCTANCE PORTION TO A SECOND STABLE POINT ON THE OTHER OF SAID POSITIVE CONDUCTANCE PORTIONS OF SAID OPERATING CHARACTERISTIC, WHEREBY SIGNALS HAVING PEAK-TO-PEAK AMPLITUDES GREATER THAN THE DIFFERENCE BETWEEN SAID STABLE POINTS ARE CLIPPED TO LEVELS SUBSTANTIALLY DETERMINED BY SAID STABLE POINTS, AND AN INDUCTOR CONNECTED IN SERIES WITH SAID DIODE FOR RESONATING SAID CIRCUIT TO A FREQUENCY OF SAID APPLIED SIGNALS.
Claim 2
Dependent Claim
140 words
A SIGNAL LIMITING CIRCUIT COMPRISING A VOLTAGE CONTROLLED SEMICONDUCTOR TUNNEL DIODE HAVING AN OPERATING CHARACTERISTIC WITH TWO POSITIVE CONDUCTANCE PORTIONS SEPARATED BY A NEGATIVE CONDUCTANCE PORTION, MEANS FOR BIASING SAID DIODE TO OPERATE AT A SELECTED STABLE POINT ON ONE OF SAID POSITIVE CONDUCTANCE PORTIONS IN THE ABSENCE OF APPLIED SIGNALS, MEANS FOR LOADING SAID DIODE TO CONTROL OSCILLATION WHEN SIGNALS ARE APPLIED THERETO, MEANS FOR APPLYING SIGNALS TO SAID DIODE TO DRIVE SAID DIODE THROUGH SAID NEGATIVE CONDUCTANCE PORTION TO A SECOND STABLE POINT ON THE OTHER OF SAID POSITIVE CONDUCTANCE PORTIONS OF SAID OPERATING CHARACTERISTIC, WHEREBY SIGNALS HAVING PEAK-TO-PEAK AMPLITUDES GREATER THAN THE DIFFERENCE BETWEEN SAID STABLE POINTS ARE CLIPPED TO LEVELS SUBSTANTIALLY DETERMINED BY SAID STABLE POINTS, AND AN INDUCTOR CONNECTED IN SERIES WITH SAID DIODE FOR RESONATING SAID CIRCUIT TO A FREQUENCY OF SAID APPLIED SIGNALS.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |