US3211924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low frequency waveform generators utilizing sampling of high frequency waveform
Assignee: Marconi Instruments Ltd
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Filing: 1962-10-10
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Granted: 1965-10-12
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Expires: 1982-10-10
Abstract
No abstract record available.
Inventors
- 👤 Beck Harold Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:38
CPC Classifications
G; G11; G11C; G11C27/00; G11C27/02; G11C27/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A LOW FREQUENCY WAVEFORM GENERATOR COMPRISING, IN COMBINATION: A RELATIVELY HIGH FREQUENCY UNMODULATED WAVE SOURCE; MEANS FOR SAMPLING DIFFERENT CYCLE OF THE UNMODULATED WAVE FROM SAID SOURCE AT DIFFERENT TIMES THEREIN, SAID SAMPLING MEANS COMPRISING A STORAGE CONDENSER, A CHARGING CIRCUIT INCLUDING A FIRST DIODE INTERPOSED BETWEEN SAID HIGH FREQUENCY SOURCE AND SAID STORAGE CONDENSER, A DISCHARGING CIRCUIT INCLUDING A SECOND DIODE CONNECTED TO SAID STORAGE CONDENSER, AND PERIODICALLY OPERATING MEANS FOR RENDERING SAID FIRST DIODE AND THEN SAID SECOND DIODE MOMENTARILY CONDUCTIVE IN TURN, THEREBY CHARGING SAID STORAGE CONDENSER TO VOLTAGES DEPENDENT UPON THE TIMES OF FIRST DIODE CONDUCTION AND SUBSEQUENTLY DISCHARGING SAID STORAGE CONDENSER; AND SMOOTHING OR INTEGRATING CIRCUIT MEANS FED WITH THE VOLTAGE APPEARING ACROSS SAID STORAGE CONDENSER.
Claim 2
Dependent Claim
121 words
A LOW FREQUENCY WAVEFORM GENERATOR COMPRISING, IN COMBINATION: A RELATIVELY HIGH FREQUENCY UNMODULATED WAVE SOURCE; MEANS FOR SAMPLING DIFFERENT CYCLE OF THE UNMODULATED WAVE FROM SAID SOURCE AT DIFFERENT TIMES THEREIN, SAID SAMPLING MEANS COMPRISING A STORAGE CONDENSER, A CHARGING CIRCUIT INCLUDING A FIRST DIODE INTERPOSED BETWEEN SAID HIGH FREQUENCY SOURCE AND SAID STORAGE CONDENSER, A DISCHARGING CIRCUIT INCLUDING A SECOND DIODE CONNECTED TO SAID STORAGE CONDENSER, AND PERIODICALLY OPERATING MEANS FOR RENDERING SAID FIRST DIODE AND THEN SAID SECOND DIODE MOMENTARILY CONDUCTIVE IN TURN, THEREBY CHARGING SAID STORAGE CONDENSER TO VOLTAGES DEPENDENT UPON THE TIMES OF FIRST DIODE CONDUCTION AND SUBSEQUENTLY DISCHARGING SAID STORAGE CONDENSER; AND SMOOTHING OR INTEGRATING CIRCUIT MEANS FED WITH THE VOLTAGE APPEARING ACROSS SAID STORAGE CONDENSER.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |