US3299294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed pulse generator using charge-storage step-recovery diode
Assignee: AT&T Inc
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Filing: 1964-04-28
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Granted: 1967-01-17
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Expires: 1984-04-28
Abstract
No abstract record available.
Inventors
- 👤 Koehler Dankwart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:37
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/33
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A HIGH-SPEED PULSE GENERATOR WHICH COMPRISES A SOURCE OF ALTERNATING VOLTAGE, A SEMICONDUCTOR CHARGESTORAGE STEP-RECOVERY DIODE HAVING A RECOMBINATION TIME WHICH IS LARGE IN COMPARISON WITH THE PERIOD OF THE ALTERNATING VOLTAGE FROM SAID SOURCE, A SERIES CHARGING PATH FOR SAID CHARGE-STORAGE STEP-RECOVERY DIODE OPERATIVE DURING EXCURSIONS OF ONE POLARITY OF THE ALTERNATING VOLTAGE FROM SAID SOURCE WHICH INCLUDES SAID CHARGE STORAGE STEPRECOVERY DIODE, SAID SOURCE, AND A SWITCHING DIODE POLED IN THE SAME DIRECTION AS SAID CHARGE-STORAGE STEP-RECOVERY DIODE, AND A SERIES DISCHARGE PATH FOR SAID CHARGE-STORAGE STEP-RECOVERY DIODE OPERATIVE DURING EXCURSIONS OF THE OTHER POLARITY OF THE ALTERNATING VOLTAGE FROM SAID SOURCE WHICH INCLUDES SAID CHARGE-STORAGE STEP-RECOVERY DIODE, SAID SOURCE, AND THE EMITTER-BASE JUNCTION OF A TRANSISTOR, SAID EMITTER-BASE JUNCTION BEING POLED IN THE OPPOSIRE DIRECTION FROM SAID CHARGE-STORAGE STEP-RECOVERY DIODE.
Claim 2
Dependent Claim
133 words
A HIGH-SPEED PULSE GENERATOR WHICH COMPRISES A SOURCE OF ALTERNATING VOLTAGE, A SEMICONDUCTOR CHARGESTORAGE STEP-RECOVERY DIODE HAVING A RECOMBINATION TIME WHICH IS LARGE IN COMPARISON WITH THE PERIOD OF THE ALTERNATING VOLTAGE FROM SAID SOURCE, A SERIES CHARGING PATH FOR SAID CHARGE-STORAGE STEP-RECOVERY DIODE OPERATIVE DURING EXCURSIONS OF ONE POLARITY OF THE ALTERNATING VOLTAGE FROM SAID SOURCE WHICH INCLUDES SAID CHARGE STORAGE STEPRECOVERY DIODE, SAID SOURCE, AND A SWITCHING DIODE POLED IN THE SAME DIRECTION AS SAID CHARGE-STORAGE STEP-RECOVERY DIODE, AND A SERIES DISCHARGE PATH FOR SAID CHARGE-STORAGE STEP-RECOVERY DIODE OPERATIVE DURING EXCURSIONS OF THE OTHER POLARITY OF THE ALTERNATING VOLTAGE FROM SAID SOURCE WHICH INCLUDES SAID CHARGE-STORAGE STEP-RECOVERY DIODE, SAID SOURCE, AND THE EMITTER-BASE JUNCTION OF A TRANSISTOR, SAID EMITTER-BASE JUNCTION BEING POLED IN THE OPPOSIRE DIRECTION FROM SAID CHARGE-STORAGE STEP-RECOVERY DIODE.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |