US3119938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bistable trigger circuit
Assignee: Individual
•
Filing: 1962-01-05
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Granted: 1964-01-28
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Expires: 1982-01-05
Abstract
No abstract record available.
Inventors
- 👤 Norman J Metz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:38
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A BISTABLE CIRCUIT OPERABLE BY A TRIGGER PULSE COMPRISING A TRANSISTOR CONNECTED TO AN INPUT TERMINAL, A DIODE CONNECTED BETWEEN THE TRANSISTOR AND THE INPUT TERMINAL, MEANS FOR BIASING THE TRANSISTOR SO THAT THE TRANSISTOR IS CONDUCTING DURING A QUIESCENT STATE OF THE CIRCUIT, MEANS INCLUDING A RESISTOR FOR CAUSING REGENERATIVE FEEDBACK TO THE TRANSISTOR SO THAT THE TRANSISTOR WILL BE QUICKLY CUT OFF UPON THE APPLICATION OF THE TRIGGER PULSE TO THE INPUT TERMINAL AND MEANS RESPONSIVE TO THE CONDITION OF THE TRANSISTOR FOR BACK BIASING THE DIODE AFTER A TRIGGER PULSE HAS BEEN INTRODUCED THEREIN WHEREBY THE CIRCUIT HAS GREATER VOLTAGE SENSITIVITY AND MULTIPLE OUTPUT PULSES FROM THE CIRCUIT ARE PREVENTED REGARDLESS OF THE SLOPE OF THE TRIGGER PULSE.
Claim 2
Dependent Claim
121 words
A BISTABLE CIRCUIT OPERABLE BY A TRIGGER PULSE COMPRISING A TRANSISTOR CONNECTED TO AN INPUT TERMINAL, A DIODE CONNECTED BETWEEN THE TRANSISTOR AND THE INPUT TERMINAL, MEANS FOR BIASING THE TRANSISTOR SO THAT THE TRANSISTOR IS CONDUCTING DURING A QUIESCENT STATE OF THE CIRCUIT, MEANS INCLUDING A RESISTOR FOR CAUSING REGENERATIVE FEEDBACK TO THE TRANSISTOR SO THAT THE TRANSISTOR WILL BE QUICKLY CUT OFF UPON THE APPLICATION OF THE TRIGGER PULSE TO THE INPUT TERMINAL AND MEANS RESPONSIVE TO THE CONDITION OF THE TRANSISTOR FOR BACK BIASING THE DIODE AFTER A TRIGGER PULSE HAS BEEN INTRODUCED THEREIN WHEREBY THE CIRCUIT HAS GREATER VOLTAGE SENSITIVITY AND MULTIPLE OUTPUT PULSES FROM THE CIRCUIT ARE PREVENTED REGARDLESS OF THE SLOPE OF THE TRIGGER PULSE.
References Cited (Backward Citations)
US2758206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |