US3323513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillator with capacitative voltage divider constituted by a transistor
Assignee: Telefunken Patentverwertungs GmbH
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Filing: 1965-02-08
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Granted: 1967-06-06
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Expires: 1985-02-08
Abstract
No abstract record available.
Inventors
- 👤 Gnadke Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:02
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/10; H03C3/12; H03C3/14; H03C3/16; A; A61; A61B; A61B5/00; A61B5/07; A61B5/073; G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1203; H03B5/1231; H03C3/145; H03B2200/00; H03B2200/003; H03B2200/0048; H03B25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
AN OSCILLATOR COMPRISING IN COMBINATION: (A) A FIRST TRANSISTOR HAVING A BASE, A COLLECTOR AND AN EMITTER; (B) A SECOND TRANSISTOR HAVING A BASE, A COLLECTOR AND AN EMITTER; (C) SAID COLLECTORS OF SAID TRANSISTORS BEING CONNECTED TO EACH OTHER; (D) SAID BASE OF SAID FIRST TRANSISTOR AND SAID EMITTER OF SAID SECOND TRANSISTOR BEING CONNECTED TO EACH OTHER; (E) FEEDBACK MEANS HAVING ONE TERMINAL CONNECTED TO SAID EMITTER OF SAID FIRST TRANSISTOR AND THE OTHER TERMINAL TO SAID BASE OF SAID SECOND TRANSISTOR; (F) AN INDUCTANCE CONNECTED ACROSS SAID COLLECTOR AND EMITTER OF SAID SECOND TRANSISTOR, SAID INDUCTANCE AND SECOND TRANSISTOR TOGETHER CONSTITUTING THE RESONANT CIRCUIT OF SAID OSCILLATOR WITH SAID SECOND TRANSISTOR BEING A CAPACITATIVE VOLTAGE DIVIDER WHOSE TAP IS CONSTITUTED BY THE BASE OF SAID SECOND TRANSISTOR; (G) MEANS FOR APPLYING AN OPERATING VOLTAGE TO SAID COLLECTOR OF SAID FIRST TRANSISTOR; AND (H) MEANS FOR APPLYING A CONTROL VOLTAGE TO SAID FEEDBACK MEANS.
Claim 2
Dependent Claim
156 words
AN OSCILLATOR COMPRISING IN COMBINATION: (A) A FIRST TRANSISTOR HAVING A BASE, A COLLECTOR AND AN EMITTER; (B) A SECOND TRANSISTOR HAVING A BASE, A COLLECTOR AND AN EMITTER; (C) SAID COLLECTORS OF SAID TRANSISTORS BEING CONNECTED TO EACH OTHER; (D) SAID BASE OF SAID FIRST TRANSISTOR AND SAID EMITTER OF SAID SECOND TRANSISTOR BEING CONNECTED TO EACH OTHER; (E) FEEDBACK MEANS HAVING ONE TERMINAL CONNECTED TO SAID EMITTER OF SAID FIRST TRANSISTOR AND THE OTHER TERMINAL TO SAID BASE OF SAID SECOND TRANSISTOR; (F) AN INDUCTANCE CONNECTED ACROSS SAID COLLECTOR AND EMITTER OF SAID SECOND TRANSISTOR, SAID INDUCTANCE AND SECOND TRANSISTOR TOGETHER CONSTITUTING THE RESONANT CIRCUIT OF SAID OSCILLATOR WITH SAID SECOND TRANSISTOR BEING A CAPACITATIVE VOLTAGE DIVIDER WHOSE TAP IS CONSTITUTED BY THE BASE OF SAID SECOND TRANSISTOR; (G) MEANS FOR APPLYING AN OPERATING VOLTAGE TO SAID COLLECTOR OF SAID FIRST TRANSISTOR; AND (H) MEANS FOR APPLYING A CONTROL VOLTAGE TO SAID FEEDBACK MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |