Patent US3381229A successfully refreshed from Google Patents.
US3381229A
Expired / Lapsed
US
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Bipolar capacitive integrator with fast reset
Assignee: Honeywell Inc
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Filing: 1964-12-02
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Granted: 1968-04-30
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Expires: 1984-12-02
Abstract
No abstract record available.
Inventors
- 👤 Daniel J Sikorra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:03
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/18; G06G7/184; G06G7/186; G06G7/1865
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
INTEGRATION APPARATUS WHEREIN IT IS DESIRABLE TO HAVE FAST RESET ACTION UPON CHANGE OF POLARITY OF AN INPUT SIGNAL COMPRISING, IN COMBINATION: AMPLIFIER MEANS INCLUDING INPUT MEANS AND OUTPUT MEANS; CAPACITIVE INTEGRATING FEEDBACK MEANS CONNECTED BETWEEN SAID OUTPUT MEANS AND SAID INPUT MEANS OF SAID AMPLIFIER MEANS; MEANS FOR SUPPLYING AN INPUT SIGNAL TO SAID INPUT OF SAID AMPLIFIER MEANS; AND LOGIC MEANS CONNECTED TO SAID CAPACITIVE FEEDBACK MEANS FOR ALLOWING A CAPACITIVE ELEMENT IN SAID FEEDBACK MEANS TO BE CHARGED THROUGH A FIRST PATH INCLUDING SAID MEANS FOR SUPPLYING AN INPUT SIGNAL UPON APPLICATION OF A FIRST POLARITY INPUT SIGNAL TO SAID AMPLIFIER MEANS AND FURTHER FOR DISCHARGING SAID CAPACITIVE ELEMENT THROUGH A SECOND PATH ISOLATED FROM SAID MEANS FOR SUPPLYING AN INPUT SIGNAL UPON CHANGE IN POLARITY OF SAID INPUT SIGNAL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |