Patent US3234472A successfully refreshed from Google Patents.
US3234472A
Expired / Lapsed
US
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System for eliminating photomultiplier noise
Assignee: DRS Photronics Corp
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Filing: 1961-04-11
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Granted: 1966-02-08
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Expires: 1981-04-11
Abstract
No abstract record available.
Inventors
- 👤 William C Ebeling
- 👤 Wight Ralph
- 👤 Wassil D Tussusov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:14
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
225 words
A SYSTEM FOR ELIMINATING NOISE FROM A SIGNAL WHEREIN SAID NOISE CONSISTS OF NEGATIVE EXCURSIONS FROM SAID SIGNAL LEVEL COMPRISING SAMPLING GATE GENERATING MEANS FOR PRODUCING A TRAIN OF PULSES HAVING A RELATIVELY HIGH PERCENTAGE DUTY CYCLE, SUMMING AMPLIFIER MEANS, A POSITIVE UNIDIRECTIONAL POTENTIAL, MEANS FOR APPLYING SAID SIGNAL AND SAID POTENTIAL TO SAID SUMMING AMPLIFIER MEANS TO PRODUCE THE INVERSION OF A SIGNAL PROPORTIONAL TO THE VALVE OF SAID SIGNAL MINUS THE VALVE OF SAID POTENTIAL, TRANSMISSION GATE MEANS, MEANS FOR APPLYING THE OUTPUT OF SAID GATE GENERATING MEANS AND SAID SUMMING AMPLIFIER MEANS TO SAID TRANSMISSION GATE MEANS TO REPRODUCE THE OUTPUT OF SAID AMPLIFIER MEANS DURING SAID PULSES, PEAK DETECTING MEANS, MEANS FOR APPLYING THE OUTPUT OF SAID TRANSMISSION GATE MEANS AND SAID GATE GENERATING MEANS TO SAID PEAK DETECTING MEANS TO PRODUCE A VOLTAGE PROPORTIONAL TO THE PEAK OF THE OUTPUT OF SAID TRANSMISSION GATE MEANS, THE INTERVAL BETWEEN PULSES OF SAID GATE GENERATING MEANS SERVING THE RECONDITION SAID PEAK DETECTING MEANS FOR THE NEXT SUCCEEDING OUTPUT PULSE FROM SAID TRANSMISSION GATE MEANS, MEANS RESPONSIVE TO THE OUTPUT OF SAID PEAK DETECTING MEANS FOR FILTERING OUT RESIDUAL ELEMENTS FROM SAID LAST NAMED OUTPUT, D.C. RESTORING MEANS, AND MEANS FOR APPLYING THE OUTPUT OF SAID FILTERING MEANS TO SAID D.C. RESTORING MEANS TO PRODUCE SAID SIGNAL WITH SAID NOISE SUBSTANTIALLY ELIMINATED THEREFROM.
Claim 2
Independent Claim
225 words
A SYSTEM FOR ELIMINATING NOISE FROM A SIGNAL WHEREIN SAID NOISE CONSISTS OF NEGATIVE EXCURSIONS FROM SAID SIGNAL LEVEL COMPRISING SAMPLING GATE GENERATING MEANS FOR PRODUCING A TRAIN OF PULSES HAVING A RELATIVELY HIGH PERCENTAGE DUTY CYCLE, SUMMING AMPLIFIER MEANS, A POSITIVE UNIDIRECTIONAL POTENTIAL, MEANS FOR APPLYING SAID SIGNAL AND SAID POTENTIAL TO SAID SUMMING AMPLIFIER MEANS TO PRODUCE THE INVERSION OF A SIGNAL PROPORTIONAL TO THE VALVE OF SAID SIGNAL MINUS THE VALVE OF SAID POTENTIAL, TRANSMISSION GATE MEANS, MEANS FOR APPLYING THE OUTPUT OF SAID GATE GENERATING MEANS AND SAID SUMMING AMPLIFIER MEANS TO SAID TRANSMISSION GATE MEANS TO REPRODUCE THE OUTPUT OF SAID AMPLIFIER MEANS DURING SAID PULSES, PEAK DETECTING MEANS, MEANS FOR APPLYING THE OUTPUT OF SAID TRANSMISSION GATE MEANS AND SAID GATE GENERATING MEANS TO SAID PEAK DETECTING MEANS TO PRODUCE A VOLTAGE PROPORTIONAL TO THE PEAK OF THE OUTPUT OF SAID TRANSMISSION GATE MEANS, THE INTERVAL BETWEEN PULSES OF SAID GATE GENERATING MEANS SERVING THE RECONDITION SAID PEAK DETECTING MEANS FOR THE NEXT SUCCEEDING OUTPUT PULSE FROM SAID TRANSMISSION GATE MEANS, MEANS RESPONSIVE TO THE OUTPUT OF SAID PEAK DETECTING MEANS FOR FILTERING OUT RESIDUAL ELEMENTS FROM SAID LAST NAMED OUTPUT, D.C. RESTORING MEANS, AND MEANS FOR APPLYING THE OUTPUT OF SAID FILTERING MEANS TO SAID D.C. RESTORING MEANS TO PRODUCE SAID SIGNAL WITH SAID NOISE SUBSTANTIALLY ELIMINATED THEREFROM.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |