US3351775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single pulse trigger circuit
Assignee: Texas Instruments Inc
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Filing: 1964-05-22
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Granted: 1967-11-07
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Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles R Cook
- 👤 Billy M Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:12
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/13; H03K5/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
249 words
A CIRCUIT FOR PRODUCING A SINGLE OUTPUT PULSE IN RESPONSE TO A PREDETERMINED INPUT VOLTAGE CHANGE COMPRISING: A FIRST TRANSISTOR OF ONE TYPE THE COLLECTOR OF WHICH IS CONNECTED TO GROUND, THE EMMITER OF WHICH IS CONNECTED BY A FIRST RESISTOR TO A VOLTAGE SUPPLY, AND THE BASE OF WHICH IS CONNECTED TO AN INPUT A SECOND TRANSISTOR OF THE OTHER TYPE THE EMITTER OF WHICH IS CONNECTED TO GROUND, THE COLLECTOR OF WHICH IS CONNECTED TO THE EMITTER OF THE FIRST TRANSISTOR, AND THE BADE OF WHICH IS CONNECTERD THROUGH A SECOND RESISTOR TO THE INPUT, THE JUNCTION BETWEEN THE EMITTER OF THE FIRST TRANSISTOR AND THE COLLECTOR OF THE SECOND TRANSISTOR BEING THE OUTPUT CONTROL POINT, A THIRD TRANSISTOR THE BASE OF WHICH IS CONNECTED TO THE OUTPUT CONTROL POINT, THE COLLECTOR OF WHICH IS CONNECTED TO A SUPPLY VOLTAGE, AND THE EMITTER OF WHICH IS CONNECTED TO AN OUTPUT, LOGIC CIRCUIT MEANS CONNECTED TO THE OUTPUT CONTROL POINT FOR SELECTIVELY CONNECTING THE CONTROL POINT TO GROUND THROUGH A HIGH IMPEDANCE OF THROUGH A LOW IMPEDANCE IN RESPONSE TO PREDETERMINED CONDITIONS, BI-STABLE CIRCUIT MEANS CONNECTED TO THE EMITTER OF THE THIRD TRANSISTOR HAVING AN OUTPUT THE VOLTAGE OF WHICH IS CHANGED IN RESPONSE TO THE OUTPUT FROM THE EMITTER OF THE THIRD TRANSISTOR, AND FEEDBACK CIRCUIT MEANS CONNECTING THE OUTPUT OF THE BI-STABLE CIRCUIT MEANS TO THE BASE OF THE SECOND TRANSISTOR FOR VARYING THE DURATION OF THE OUTPUT PULSE FROM THE EMITTER OF THE THIRD TRANSISTOR.
Claim 2
Dependent Claim
249 words
A CIRCUIT FOR PRODUCING A SINGLE OUTPUT PULSE IN RESPONSE TO A PREDETERMINED INPUT VOLTAGE CHANGE COMPRISING: A FIRST TRANSISTOR OF ONE TYPE THE COLLECTOR OF WHICH IS CONNECTED TO GROUND, THE EMMITER OF WHICH IS CONNECTED BY A FIRST RESISTOR TO A VOLTAGE SUPPLY, AND THE BASE OF WHICH IS CONNECTED TO AN INPUT A SECOND TRANSISTOR OF THE OTHER TYPE THE EMITTER OF WHICH IS CONNECTED TO GROUND, THE COLLECTOR OF WHICH IS CONNECTED TO THE EMITTER OF THE FIRST TRANSISTOR, AND THE BADE OF WHICH IS CONNECTERD THROUGH A SECOND RESISTOR TO THE INPUT, THE JUNCTION BETWEEN THE EMITTER OF THE FIRST TRANSISTOR AND THE COLLECTOR OF THE SECOND TRANSISTOR BEING THE OUTPUT CONTROL POINT, A THIRD TRANSISTOR THE BASE OF WHICH IS CONNECTED TO THE OUTPUT CONTROL POINT, THE COLLECTOR OF WHICH IS CONNECTED TO A SUPPLY VOLTAGE, AND THE EMITTER OF WHICH IS CONNECTED TO AN OUTPUT, LOGIC CIRCUIT MEANS CONNECTED TO THE OUTPUT CONTROL POINT FOR SELECTIVELY CONNECTING THE CONTROL POINT TO GROUND THROUGH A HIGH IMPEDANCE OF THROUGH A LOW IMPEDANCE IN RESPONSE TO PREDETERMINED CONDITIONS, BI-STABLE CIRCUIT MEANS CONNECTED TO THE EMITTER OF THE THIRD TRANSISTOR HAVING AN OUTPUT THE VOLTAGE OF WHICH IS CHANGED IN RESPONSE TO THE OUTPUT FROM THE EMITTER OF THE THIRD TRANSISTOR, AND FEEDBACK CIRCUIT MEANS CONNECTING THE OUTPUT OF THE BI-STABLE CIRCUIT MEANS TO THE BASE OF THE SECOND TRANSISTOR FOR VARYING THE DURATION OF THE OUTPUT PULSE FROM THE EMITTER OF THE THIRD TRANSISTOR.
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |