US3207996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal comparison circuit
Assignee: Beckman Coulter Inc
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Filing: 1961-11-17
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Granted: 1965-09-21
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Expires: 1981-11-17
Abstract
No abstract record available.
Inventors
- 👤 Sundstrom Karl Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:56
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/10; G01J1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN COMBNATIN: MEANS FOR GENERATIGN A TRAIN OF SIGNAL PULSES OF ONE POLARITY BASED UPON A ZERO SIGNAL LEVEL HAVING AT LEAST ON OCCASION SPURIOUS NOISE IMPULSES SUPERIMPOSED THEREON, MEANS FOR PERIODICALLY SELECTING A PORTION OF SAID TRAIN OF PULSES INCLUDING AT LEAST A PART OF ONE SIGNAL PULSE AND AT LEAST A PART OF ONE ZERO SIGNAL LEVEL INTERVAL ADJACENT SAID ONE SIGNAL PULSE IN TIME, MEANS FOR STORING A FILTERING SAID ZERO SIGNAL INTERVAL PORTIONS TO REMOVE ANY SPURIOUS NOISE IMPULSES AND CREATE TRUE SIGNAL PULSES, MEANS FOR FILTERING AND STORING SAID TRUE SIGNAL PULSES, AND MEANS DIRECTING SAID STORED SIGNAL PULSES TO A UTILIZATION CIRCUIT.
Claim 2
Dependent Claim
108 words
IN COMBNATIN: MEANS FOR GENERATIGN A TRAIN OF SIGNAL PULSES OF ONE POLARITY BASED UPON A ZERO SIGNAL LEVEL HAVING AT LEAST ON OCCASION SPURIOUS NOISE IMPULSES SUPERIMPOSED THEREON, MEANS FOR PERIODICALLY SELECTING A PORTION OF SAID TRAIN OF PULSES INCLUDING AT LEAST A PART OF ONE SIGNAL PULSE AND AT LEAST A PART OF ONE ZERO SIGNAL LEVEL INTERVAL ADJACENT SAID ONE SIGNAL PULSE IN TIME, MEANS FOR STORING A FILTERING SAID ZERO SIGNAL INTERVAL PORTIONS TO REMOVE ANY SPURIOUS NOISE IMPULSES AND CREATE TRUE SIGNAL PULSES, MEANS FOR FILTERING AND STORING SAID TRUE SIGNAL PULSES, AND MEANS DIRECTING SAID STORED SIGNAL PULSES TO A UTILIZATION CIRCUIT.
References Cited (Backward Citations)
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US2761350A
Cited
US2868060A
Cited
US2787512A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |