US3411099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic gain and frequency control system for semiconductor amplifier
Assignee: Westinghouse Electric Corp
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Filing: 1965-12-21
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Granted: 1968-11-12
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Expires: 1985-12-21
Abstract
No abstract record available.
Inventors
- 👤 Irving F Barditch
- 👤 Bento Robert
- 👤 Charles G Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:58
CPC Classifications
H; H03; H03G; H03G1/00; H03G1/0005; H03G1/0035; H03G1/0082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A BAND-PASS SIGNAL TRANSLATION SYSTEM COMPRISING AN INPUT TERMINAL, AN OUTPUT TERMINAL, A COMMON INPUTOUTPUT TERMINAL, AT LEAST TWO PATHS BETWEEN SAID INPUT AND SAID OUTPUT TERMINALS, ONE OF SAID PATHS INCLUDING A TRANSISTOR CONNECTED IN A GROUNDED EMITTER CONFIGURATION AND A PASSIVE VOLTAGE RESPONSIVE PHASE SHIFTING DISTRIBUTED RC NETWORK, A SOURCE OF AGC VOLTAGE WHICH IS A FUNCTION OF THE SIGNALS APPLIED TO THE INPUT, AND MEANS RESPONSIVE TO SAID AGC VOLTAGE FOR SIMULTANEOUSLY VARYING THE GAIN OF SAID TRANSISTOR AND SHIFITING THE RC PRODUCT OF SAID NETWORK SO THAT THE CENTER FREQUENCY OF THE BAND-PASS IS NOT CHANGED IN RESPONSE TO VARIATIONS IN THE AMPLITUDE OF THE INPUT SIGNALS.
Claim 2
Dependent Claim
111 words
A BAND-PASS SIGNAL TRANSLATION SYSTEM COMPRISING AN INPUT TERMINAL, AN OUTPUT TERMINAL, A COMMON INPUTOUTPUT TERMINAL, AT LEAST TWO PATHS BETWEEN SAID INPUT AND SAID OUTPUT TERMINALS, ONE OF SAID PATHS INCLUDING A TRANSISTOR CONNECTED IN A GROUNDED EMITTER CONFIGURATION AND A PASSIVE VOLTAGE RESPONSIVE PHASE SHIFTING DISTRIBUTED RC NETWORK, A SOURCE OF AGC VOLTAGE WHICH IS A FUNCTION OF THE SIGNALS APPLIED TO THE INPUT, AND MEANS RESPONSIVE TO SAID AGC VOLTAGE FOR SIMULTANEOUSLY VARYING THE GAIN OF SAID TRANSISTOR AND SHIFITING THE RC PRODUCT OF SAID NETWORK SO THAT THE CENTER FREQUENCY OF THE BAND-PASS IS NOT CHANGED IN RESPONSE TO VARIATIONS IN THE AMPLITUDE OF THE INPUT SIGNALS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |