Patent US3209171A successfully refreshed from Google Patents.
US3209171A
Expired / Lapsed
US
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Pulse generator employing minority carrier storage diodes for pulse shaping
Assignee: RCA Corp
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Filing: 1962-11-21
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Granted: 1965-09-28
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Expires: 1982-11-21
Abstract
No abstract record available.
Inventors
- 👤 Juan J Amodei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:21
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/33
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A PULSE GENERATOR CIRCUIT FOR GENERATING REGULARLY RECURRING VOLTAGE PULSES, COMPRISING IN COMBINATION: A SIGNAL GENERATOR FOR DEVELOPING AN ALTERNATING VOLTAGE SIGNAL HAVING A FREQUENCY EQUAL TO THE DESIRED REPETITION RATE OF SAID VOLTAGE PULSES; A FIRST AND A SECOND STORAGE DIODE SEMICONDUCTOR DEVICES, EACH OF SAID DEVICES HAVING A HIGH CONDUCTIVITY STATE WHEN FORWARD BIASED BY A SIGNAL VOLTAGE, A HIGH CONDUCTIVITY STATE FOR A RECOVERY TIME PERIOD WHEN REVERSE BIASED BY A SIGNAL VOLTAGE FOLLOWING A PERIOD OF FORWARD BIAS CURRENT FLOW, SAID RECOVERY TIME PERIOD BEING DEPENDENT ON THE AMOUNT AND DURATION OF PRIOR FORWARD BIAS CURRENT FLOW, AND A DECAY PERIOD AT THE TERMINATION OF SAID RECOVERY TIME PERIOD DURING WHICH SAID DEVICES UNDER REVERSE BIAS FALL RAPIDLY TO A LOW CONDUCTIVITY STATE; MEANS FOR CONNECTING SAID ALTERNATING VOLTAGE SIGNAL FROM SAID SIGNAL GENERATOR CIRCUIT ACROSS THE SERIES COMBINATION OF SAID FIRST AND SECOND STORAGE DIODE DEVICES SO THAT FORWARD CURRENT FLOW IN ONE OF SAID DEVICES IS REVERSE CURRENT FLOW IN THE OTHER OF SAID DEVICES; AND MEANS FOR DERIVING REGULARLY RECURRING OUTPUT VOLTAGE PULSES FROM THE VOLTAGE ACROSS ONE OF SAID DEVICES.
Claim 2
Dependent Claim
188 words
A PULSE GENERATOR CIRCUIT FOR GENERATING REGULARLY RECURRING VOLTAGE PULSES, COMPRISING IN COMBINATION: A SIGNAL GENERATOR FOR DEVELOPING AN ALTERNATING VOLTAGE SIGNAL HAVING A FREQUENCY EQUAL TO THE DESIRED REPETITION RATE OF SAID VOLTAGE PULSES; A FIRST AND A SECOND STORAGE DIODE SEMICONDUCTOR DEVICES, EACH OF SAID DEVICES HAVING A HIGH CONDUCTIVITY STATE WHEN FORWARD BIASED BY A SIGNAL VOLTAGE, A HIGH CONDUCTIVITY STATE FOR A RECOVERY TIME PERIOD WHEN REVERSE BIASED BY A SIGNAL VOLTAGE FOLLOWING A PERIOD OF FORWARD BIAS CURRENT FLOW, SAID RECOVERY TIME PERIOD BEING DEPENDENT ON THE AMOUNT AND DURATION OF PRIOR FORWARD BIAS CURRENT FLOW, AND A DECAY PERIOD AT THE TERMINATION OF SAID RECOVERY TIME PERIOD DURING WHICH SAID DEVICES UNDER REVERSE BIAS FALL RAPIDLY TO A LOW CONDUCTIVITY STATE; MEANS FOR CONNECTING SAID ALTERNATING VOLTAGE SIGNAL FROM SAID SIGNAL GENERATOR CIRCUIT ACROSS THE SERIES COMBINATION OF SAID FIRST AND SECOND STORAGE DIODE DEVICES SO THAT FORWARD CURRENT FLOW IN ONE OF SAID DEVICES IS REVERSE CURRENT FLOW IN THE OTHER OF SAID DEVICES; AND MEANS FOR DERIVING REGULARLY RECURRING OUTPUT VOLTAGE PULSES FROM THE VOLTAGE ACROSS ONE OF SAID DEVICES.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |