US3360735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic gain control circuit having means for compensating for capacitive effect
Assignee: Sony Corp
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Filing: 1964-07-17
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Granted: 1967-12-26
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Expires: 1984-07-17
Abstract
No abstract record available.
Inventors
- 👤 Fujimoto Toshihiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:38
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/44; H04N5/52; H03; H03G; H03G1/00; H03G1/0005; H03G1/0035; H03G1/0082; H03G3/00; H03G3/20; H03G3/30; H03G3/3052; H03G3/3063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN COMBINATION WITH AN AMPLIFIER CIRCUIT HAVING A SIGNAL SOURCE CONNECTED THERETO AND INCLUDING AN AMPLIFYING TRANSISTOR WITH AN EMITTER AND A COLLECTOR THEREOF CONNECTED IN SERIES WITH AN OUTPUT LOAD, AN AUTOMATIC GAIN CONTROL CIRCUIT, COMPRISING (A) A CONTROL TRANSISTOR HAVING AN EMITTER AND A COLLECTOR CONNECTED IN SERIES BETWEEN THE SIGNAL SOURCE AND A BASE OF THE AMPLIFYING TRANSISTOR, (B) AN AUTOMATIC GAIN CONTROL SOURCE CONNECTED TO A BASE OF SAID CONTROL TRANSISTOR, AND (C) MEANS CONNECTED TO SAID GAIN CONTROL TRANSISTOR FOR CONTROLLING THE VALUE OF THE EMITTER-COLLECTOR CAPACITANCE THEREOF INCLUDING AN INDUCTANCE CONNECTED BETWEEN THE EMITTER AND COLLECTOR OF SAID CONTROL TRANSISTOR AND FORMING A RESONANT CIRCUIT WITH THE EMITTERCOLLECTOR CAPACITANCE THEREOF AT THE FREQUENCY OF THE SIGNAL SOURCE.
Claim 2
Dependent Claim
123 words
IN COMBINATION WITH AN AMPLIFIER CIRCUIT HAVING A SIGNAL SOURCE CONNECTED THERETO AND INCLUDING AN AMPLIFYING TRANSISTOR WITH AN EMITTER AND A COLLECTOR THEREOF CONNECTED IN SERIES WITH AN OUTPUT LOAD, AN AUTOMATIC GAIN CONTROL CIRCUIT, COMPRISING (A) A CONTROL TRANSISTOR HAVING AN EMITTER AND A COLLECTOR CONNECTED IN SERIES BETWEEN THE SIGNAL SOURCE AND A BASE OF THE AMPLIFYING TRANSISTOR, (B) AN AUTOMATIC GAIN CONTROL SOURCE CONNECTED TO A BASE OF SAID CONTROL TRANSISTOR, AND (C) MEANS CONNECTED TO SAID GAIN CONTROL TRANSISTOR FOR CONTROLLING THE VALUE OF THE EMITTER-COLLECTOR CAPACITANCE THEREOF INCLUDING AN INDUCTANCE CONNECTED BETWEEN THE EMITTER AND COLLECTOR OF SAID CONTROL TRANSISTOR AND FORMING A RESONANT CIRCUIT WITH THE EMITTERCOLLECTOR CAPACITANCE THEREOF AT THE FREQUENCY OF THE SIGNAL SOURCE.
References Cited (Backward Citations)
GB764428A
Cited
US2937341A
Cited
GB835337A
Cited
US3002090A
Cited
US3090027A
Cited
US3013148A
Cited
US3289088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |