Patent US3202940A successfully refreshed from Google Patents.
US3202940A
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Semiconductor amplitude modulation circuit
Assignee: Clevite Corp
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Filing: 1961-06-26
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Granted: 1965-08-24
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Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Dietrich Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:17
CPC Classifications
H; H03; H03C; H03C1/00; H03C1/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN AMPLITUDE MODULATION CIRCUIT COMPRISING: A TRANSISTOR OSCILLATOR; A PAIR OF SEMICONDUCTOR DEVICES HAVING RECTIFYING JUNCTIONS, COUPLED IN PUSH-PULL RELATION TO THE OUTPUT OF SAID OSCILLATOR; A TUNED LC OSCILLATORY CIRCUIT COUPLED TO SAID SEMICONDUCTOR DEVICES; MEANS COUPLED TO SAID OSCILLATORY CIRCUIT FOR DERIVING AN OUTPUT SIGNAL THEREFROM; AND VARIABLE RESISTIVE IMPEDANCE MEANS RESPONSIVE TO A MODULATING SIGNAL FOR VARYING THE Q OF SAID LC OSCILLATORY CIRCUIT TO EFFECT AMPLITUDE MODULATION OF THE OUTPUT SIGNAL.
Claim 2
Dependent Claim
75 words
AN AMPLITUDE MODULATION CIRCUIT COMPRISING: A TRANSISTOR OSCILLATOR; A PAIR OF SEMICONDUCTOR DEVICES HAVING RECTIFYING JUNCTIONS, COUPLED IN PUSH-PULL RELATION TO THE OUTPUT OF SAID OSCILLATOR; A TUNED LC OSCILLATORY CIRCUIT COUPLED TO SAID SEMICONDUCTOR DEVICES; MEANS COUPLED TO SAID OSCILLATORY CIRCUIT FOR DERIVING AN OUTPUT SIGNAL THEREFROM; AND VARIABLE RESISTIVE IMPEDANCE MEANS RESPONSIVE TO A MODULATING SIGNAL FOR VARYING THE Q OF SAID LC OSCILLATORY CIRCUIT TO EFFECT AMPLITUDE MODULATION OF THE OUTPUT SIGNAL.
References Cited (Backward Citations)
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US2562640A
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US2832051A
Cited
US2887663A
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US3101452A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |