Patent US3134949A successfully refreshed from Google Patents.
US3134949A
Expired / Lapsed
US
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Negative resistance frequency modulated oscillator
Assignee: General Electric Co
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Filing: 1960-01-08
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Granted: 1964-05-26
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Expires: 1980-01-08
Abstract
No abstract record available.
Inventors
- 👤 Jerome J Tiemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:58
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/313; H03K3/315; H03C; H03C3/00; H03C3/10; H03C3/12; H03C3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A FREQUENCY MODULATED OSCILLATOR CIRCUIT COMPRISING: A NARROW JUNCTION DEGENERATE SEMICONDUCTOR DIODE EXHIBITING A REGION OF NEGATIVE RESISTANCE AT THE LOW FORWARD VOLTAGE RANGE OF ITS CURRENT-VOLTAGE CHARACTERISTIC; BIAS MEANS ESTABLISHING A DIRECT CURRENT LOAD LINE WHICH INTERSECTS SAID CURRENT-VOLTAGE CHARACTERISTIC ONLY IN THE REGION OF NEGATIVE RESISTANCE; A PARALLEL RESONANT CIRCUIT CONNECTED IN PARALLEL CIRCUIT RELATION WITH SAID DIODE; AND MODULATION MEANS FOR VARYING THE BIAS ON SAID DIODE TO CHANGE THE OUTPUT FREQUENCY OF SAID OSCILLATOR CIRCUIT IN ACCORDANCE WITH THE VARIATION OF SAID BIAS.
Claim 2
Dependent Claim
87 words
A FREQUENCY MODULATED OSCILLATOR CIRCUIT COMPRISING: A NARROW JUNCTION DEGENERATE SEMICONDUCTOR DIODE EXHIBITING A REGION OF NEGATIVE RESISTANCE AT THE LOW FORWARD VOLTAGE RANGE OF ITS CURRENT-VOLTAGE CHARACTERISTIC; BIAS MEANS ESTABLISHING A DIRECT CURRENT LOAD LINE WHICH INTERSECTS SAID CURRENT-VOLTAGE CHARACTERISTIC ONLY IN THE REGION OF NEGATIVE RESISTANCE; A PARALLEL RESONANT CIRCUIT CONNECTED IN PARALLEL CIRCUIT RELATION WITH SAID DIODE; AND MODULATION MEANS FOR VARYING THE BIAS ON SAID DIODE TO CHANGE THE OUTPUT FREQUENCY OF SAID OSCILLATOR CIRCUIT IN ACCORDANCE WITH THE VARIATION OF SAID BIAS.
References Cited (Backward Citations)
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Cited
US2708739A
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US2975377A
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US2906962A
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US2997604A
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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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |