Patent US3204207A successfully refreshed from Google Patents.
US3204207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage controlled capacitance diode tuner with temperature compensation
Assignee: Avco Corp
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Filing: 1962-11-30
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Granted: 1965-08-31
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Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
- 👤 Gerhard B Denker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:23
CPC Classifications
H; H03; H03J; H03J3/00; H03J3/02; H03J3/16; H03J3/18; H03J3/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A TEMPERATURE-COMPENSATION NETWORK FOR A VARIABLECAPACITY SEMICONDUCTOR DIODE HAVING A TEMPERATURE COEFFICIENT OF ONE POLARITY, COMPRISING: FIRST AND SECOND TRANSISTORS EACH HAVING A BASE, AN EMITTER, AND A COLLECTOR, THE DIODE JUNCTION BETWEEN THE BASE AND EMITTER OF EACH OF SAID TRANSISTORS HAVING A TEMPERATURE COEFFICIENT OF COMPENSATING POLARITY TO SAID VARIABLE-CAPACITY DIODE, SAID COLLECTORS BEING INTERCONNECTED, THE AMITTER OF SAID FIRST TRANSISTOR BEING CONNECTED TO THE BASE OF THE SECOND TRANSISTOR, AND SAID DIODE BEINF CONNECTED BETWEEN THE EMITTER OF THE SECOND TRANISTOR AND A POINT OF REFEENCE POTENTIAL; A TWO-TERMINAL SOURCE OF UNREGULATED BIASING VOLTAGE FOR SAID TRANSISTORS, ONE OF SAID TERMINALS BEING CONNECTED TO SAID COLLECTORS, THE OTHER BEING CONNECTED TO SAID POINT; A TWO-TERMINAL SOURCE OF REGULATED VOLTAGE, ONE OF SAID TERMINALS BEING CONNECTED TO THE BASE OF SAID FIRST TRANSISTOR, THE OTHER OF SAID RERMINALS BEING CONNECTED TO SAID POINT; WHEREBY SAID VARIABLE-CAPACITY DIODE, SAID TRANSITOR DIODE JUNCTIONS, AND SAID REGULATED TWO-TERMINAL SOURCE ARE EFFECTIVELY CONNECTED IN A SERIES LOOP.
Claim 2
Dependent Claim
165 words
A TEMPERATURE-COMPENSATION NETWORK FOR A VARIABLECAPACITY SEMICONDUCTOR DIODE HAVING A TEMPERATURE COEFFICIENT OF ONE POLARITY, COMPRISING: FIRST AND SECOND TRANSISTORS EACH HAVING A BASE, AN EMITTER, AND A COLLECTOR, THE DIODE JUNCTION BETWEEN THE BASE AND EMITTER OF EACH OF SAID TRANSISTORS HAVING A TEMPERATURE COEFFICIENT OF COMPENSATING POLARITY TO SAID VARIABLE-CAPACITY DIODE, SAID COLLECTORS BEING INTERCONNECTED, THE AMITTER OF SAID FIRST TRANSISTOR BEING CONNECTED TO THE BASE OF THE SECOND TRANSISTOR, AND SAID DIODE BEINF CONNECTED BETWEEN THE EMITTER OF THE SECOND TRANISTOR AND A POINT OF REFEENCE POTENTIAL; A TWO-TERMINAL SOURCE OF UNREGULATED BIASING VOLTAGE FOR SAID TRANSISTORS, ONE OF SAID TERMINALS BEING CONNECTED TO SAID COLLECTORS, THE OTHER BEING CONNECTED TO SAID POINT; A TWO-TERMINAL SOURCE OF REGULATED VOLTAGE, ONE OF SAID TERMINALS BEING CONNECTED TO THE BASE OF SAID FIRST TRANSISTOR, THE OTHER OF SAID RERMINALS BEING CONNECTED TO SAID POINT; WHEREBY SAID VARIABLE-CAPACITY DIODE, SAID TRANSITOR DIODE JUNCTIONS, AND SAID REGULATED TWO-TERMINAL SOURCE ARE EFFECTIVELY CONNECTED IN A SERIES LOOP.
References Cited (Backward Citations)
US3099798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |