Patent US3152265A successfully refreshed from Google Patents.
US3152265A
Expired / Lapsed
US
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Circuit for preventing ringing in a pulsed network
Assignee: Unisys Corp
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Filing: 1961-06-29
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Granted: 1964-10-06
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Expires: 1981-06-29
Abstract
No abstract record available.
Inventors
- 👤 Mekel Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:41
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/01; H03K3/013; H03K17/00; H03K17/16; H03K19/00; H03K19/02; H03K19/08; H03K19/082; H03K19/084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
AN ELECTRICAL CIRCUIT FOR PROVIDING VOLTAGE PULSES HAVING A PREDETERMINED MAXIMUM AMPLITUDE COMPRISING: A SEMICONDUCTOR DEVICE HAVING AT LEAST AN EMITTER ELECTRODE, A LOAD IMPEDANCE, VOLTAGE LEVEL SHIFTING MEANS CONNECTED BETWEEN SAID EMITTER ELECTRODE AND ONE END OF SAID LOAD IMPEDANCE, SAID LOAD IMPEDANCE BEING ADAPTED TO HAVE AN EMITTER SUPPLY VOLTAGE COUPLED TO ITS OTHER END, OUTPUT MEANS COUPLED TO THE JUNCTION OF SAID LEVEL SHIFTING MEANS AND SAID LOAD IMPEDANCE, A UNIDIRECTIONAL MEANS ALSO COUPLED TO THE JUNCTION OF SAID LEVEL SHIFTING MEANS AND SAID LOAD IMPEDANCE FOR ELECTRICALLY CONNECTING SAID JUNCTION TO A SOURCE OF ELECTRICAL POTENTIAL WHICH IS EQUAL TO SAID PREDETERMINED MAXIMUM AMPLITUDE OF SAID VOLTAGE PULSES WHENEVER A VOLTAGE DROP ACROSS SAID VOLTAGE LEVEL SHIFTING MEANS CAUSES THE VOLTAGE AT SAID JUNCTION TO TEND TO BECOME GREATER THAN SAID PREDETERMINED MAXIMUM AMPLITUDE.
Claim 2
Dependent Claim
138 words
AN ELECTRICAL CIRCUIT FOR PROVIDING VOLTAGE PULSES HAVING A PREDETERMINED MAXIMUM AMPLITUDE COMPRISING: A SEMICONDUCTOR DEVICE HAVING AT LEAST AN EMITTER ELECTRODE, A LOAD IMPEDANCE, VOLTAGE LEVEL SHIFTING MEANS CONNECTED BETWEEN SAID EMITTER ELECTRODE AND ONE END OF SAID LOAD IMPEDANCE, SAID LOAD IMPEDANCE BEING ADAPTED TO HAVE AN EMITTER SUPPLY VOLTAGE COUPLED TO ITS OTHER END, OUTPUT MEANS COUPLED TO THE JUNCTION OF SAID LEVEL SHIFTING MEANS AND SAID LOAD IMPEDANCE, A UNIDIRECTIONAL MEANS ALSO COUPLED TO THE JUNCTION OF SAID LEVEL SHIFTING MEANS AND SAID LOAD IMPEDANCE FOR ELECTRICALLY CONNECTING SAID JUNCTION TO A SOURCE OF ELECTRICAL POTENTIAL WHICH IS EQUAL TO SAID PREDETERMINED MAXIMUM AMPLITUDE OF SAID VOLTAGE PULSES WHENEVER A VOLTAGE DROP ACROSS SAID VOLTAGE LEVEL SHIFTING MEANS CAUSES THE VOLTAGE AT SAID JUNCTION TO TEND TO BECOME GREATER THAN SAID PREDETERMINED MAXIMUM AMPLITUDE.
References Cited (Backward Citations)
US3007059A
Cited
US3048715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |