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US3093756A
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Detector of pulses exceeding a predetermined length
Assignee: Nortel Networks Ltd
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Filing: 1961-11-24
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Granted: 1963-06-11
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Expires: 1981-11-24
Abstract
No abstract record available.
Inventors
- 👤 Rywak John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:08
CPC Classifications
G; G01; G01R; G01R29/00; G01R29/02; G01R29/027; G01R29/0273; H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/282; H03K3/2823; H03K3/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
239 words
A CIRCUIT FOR DETECTING PULSES EXCEEDING A PREDETERMINED LENGTH COMPRISING IN COMBINATION: A FIRST AND SECOND SEMI-CONDUCTOR DEVICE EACH HAVING A BASE, EMITTER AND COLLECTOR ELECTRODE; A SOURCE OF POTENTIAL; A FIRST RESISTOR CONNECTED TO A FIRST TERMINAL OF THE SOURCE, POLED TO APPLY A PREDETERMINED POLARITY THERETO, AND TO THE BASE ELECTRODE OF THE FIRST DEVICE, A SECOND RESISTOR CONNECTED TO THE OTHER TERMINAL OF THE POTENTIAL SOURCE AND TO THE COLLECTOR ELECTRODE OF THE SECOND DEVICE, A THIRD RESISTOR CONNECTED BETWEEN THE FIRST AND SECOND RESISTOR, A FOURTH RESISTOR CONNECTED TO THE FIRST TERMINAL OF THE POTENTIAL SOURCE AND TO THE ANODE OF A FIRST DIODE, MEANS FOR CONNECTING THE CATHODE OF THE DIODE TO THE BASE ELECTRODE OF THE SECOND DEVICE, A FIFTH RESISTOR CONNECTED TO THE OTHER TERMINAL OF THE POTENTIAL SOURCE AND TO THE COLLECTOR ELECTRODE OF THE FIRST DEVICE, A CAPACITOR AND A SECOND DIODE, IS SERIES RELATION, CONNECTED BETWEEN THE FOURTH RESISTOR AND THE COLLECTOR ELECTRODE OF THE FIRST DEVICE, A THIRD TRANSISTOR HAVING ITS EMITTER AND COLLECTOR ELECTRODES CONNECTED ACROSS THE CAPACITOR, A SIXTH AND SEVENTH RESISTOR IN SERIES RELATION, CONNECTED ACROSS THE POTENTIAL SOURCE, THE JUNCTION THEREOF BEING CONNECTED TO THE BASE ELECTRODE OF THE THIRD DEVICE, AN EIGHTH RESISTOR CONNECTED BETWEEN JUNCTION OF THE SECOND DIODE AND THE CAPACITOR AND THE OTHER TERMINAL OF THE POTENTIAL SOURCE, MEANS FOR GROUNDING THE EMITTER ELECTRODE OF THE FIRST AND SECOND DEVICE.
Claim 2
Dependent Claim
239 words
A CIRCUIT FOR DETECTING PULSES EXCEEDING A PREDETERMINED LENGTH COMPRISING IN COMBINATION: A FIRST AND SECOND SEMI-CONDUCTOR DEVICE EACH HAVING A BASE, EMITTER AND COLLECTOR ELECTRODE; A SOURCE OF POTENTIAL; A FIRST RESISTOR CONNECTED TO A FIRST TERMINAL OF THE SOURCE, POLED TO APPLY A PREDETERMINED POLARITY THERETO, AND TO THE BASE ELECTRODE OF THE FIRST DEVICE, A SECOND RESISTOR CONNECTED TO THE OTHER TERMINAL OF THE POTENTIAL SOURCE AND TO THE COLLECTOR ELECTRODE OF THE SECOND DEVICE, A THIRD RESISTOR CONNECTED BETWEEN THE FIRST AND SECOND RESISTOR, A FOURTH RESISTOR CONNECTED TO THE FIRST TERMINAL OF THE POTENTIAL SOURCE AND TO THE ANODE OF A FIRST DIODE, MEANS FOR CONNECTING THE CATHODE OF THE DIODE TO THE BASE ELECTRODE OF THE SECOND DEVICE, A FIFTH RESISTOR CONNECTED TO THE OTHER TERMINAL OF THE POTENTIAL SOURCE AND TO THE COLLECTOR ELECTRODE OF THE FIRST DEVICE, A CAPACITOR AND A SECOND DIODE, IS SERIES RELATION, CONNECTED BETWEEN THE FOURTH RESISTOR AND THE COLLECTOR ELECTRODE OF THE FIRST DEVICE, A THIRD TRANSISTOR HAVING ITS EMITTER AND COLLECTOR ELECTRODES CONNECTED ACROSS THE CAPACITOR, A SIXTH AND SEVENTH RESISTOR IN SERIES RELATION, CONNECTED ACROSS THE POTENTIAL SOURCE, THE JUNCTION THEREOF BEING CONNECTED TO THE BASE ELECTRODE OF THE THIRD DEVICE, AN EIGHTH RESISTOR CONNECTED BETWEEN JUNCTION OF THE SECOND DIODE AND THE CAPACITOR AND THE OTHER TERMINAL OF THE POTENTIAL SOURCE, MEANS FOR GROUNDING THE EMITTER ELECTRODE OF THE FIRST AND SECOND DEVICE.
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |