US3619667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bistable multivibrator
Assignee: TDK Micronas GmbH
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Filing: 1970-03-30
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Granted: 1971-11-09
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Expires: 1990-03-30
Abstract
Abstract A bistable multivibrator in which the base of first and second transistors are coupled to the collectors of said second and first transistors respectively. One terminal of first and second elements exhibiting thyratron characteristics are coupled to the base of the respective first and second transistors. The other terminal of said first and second elements are coupled to a control voltage.
Inventors
- 👤 Albrecht Gerlach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:45
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/313
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
A bistable multivibrator having a first and second transistor, each of said transistors having an emitter, base and collector, the base of said first transistor being coupled to the collector of said second transistor, and the base of said second transistor being coupled to the collector of said first transistor, the emitter of said first transistor being coupled to the emitter of said second transistor, comprising: first and second elements having thyratron characteristics; one terminal of said first and second elements being coupled to the base of said first and second transistors respectively; and means for coupling the other terminal of said first and second elements to a control voltage.
Claim 2
Dependent Claim
110 words
A bistable multivibrator having a first and second transistor, each of said transistors having an emitter, base and collector, the base of said first transistor being coupled to the collector of said second transistor, and the base of said second transistor being coupled to the collector of said first transistor, the emitter of said first transistor being coupled to the emitter of said second transistor, comprising: first and second elements having thyratron characteristics; one terminal of said first and second elements being coupled to the base of said first and second transistors respectively; and means for coupling the other terminal of said first and second elements to a control voltage.
Claim 3
Dependent Claim
29 words
A bistable multivibrator according to claim 1 wherein said coupling means includes a resistor interposed between said control voltage and the other terminal of said first and second elements.
Claim 4
Dependent Claim
18 words
A bistable multivibrator according to claim 1 wherein said first and second elements are four layers PNPN diodes.
References Cited (Backward Citations)
US2831986A
Cited
US3482187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |