Patent US3231728A successfully refreshed from Google Patents.
US3231728A
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Assignee: Computer Systems Inc
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Filing: 1960-07-18
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Granted: 1966-01-25
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Expires: 1980-07-18
Abstract
No abstract record available.
Inventors
- 👤 Thaddeus J Kusto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:41
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/18; G06G7/184; G06G7/186; G06G7/1865
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A COMPUTING AMPLIFIER SYSTEM COMPRISING AN OPERATIONAL AMPLIFIER HAVING A FIRST FEEBACK LOOP CONNECTED DIRECTLY BETWEEN ITS OUTPUT AND ITS INPUT AND INCLUDING AN INTEGRATING CAPACITOR, AND A SECOND FEEDBACK LOOP CONNECTED DIRECTLY BETWEEN ITS OUTPUT AND ITS INPUT AND INCLUDING A FEEDBACK RESISTOR, TO WHICH FEEDBACK RESISTOR A RESET INPUT RESISTOR IS CONNECTED AT A SUMMING POINT IN SAID SECOND LOOP, AND LOW OUTPUT IMPEDANCE SOURCE MEANS RESPONSIVE TO THE POTENTIAL AT SAID SUMMING POINT SELECTIVELY TO COMPLETE SAID SECOND FEEDBACK LOOP WHEREBY THE OUTPUT POTENTIAL OF SAID OPERATIONAL AMPLIFIER MAY BE RAPIDLY RESET TO THE VALUE OF A POTENTIAL APPLIED VIA SAID INPUT RESISTOR.
Claim 2
Dependent Claim
106 words
A COMPUTING AMPLIFIER SYSTEM COMPRISING AN OPERATIONAL AMPLIFIER HAVING A FIRST FEEBACK LOOP CONNECTED DIRECTLY BETWEEN ITS OUTPUT AND ITS INPUT AND INCLUDING AN INTEGRATING CAPACITOR, AND A SECOND FEEDBACK LOOP CONNECTED DIRECTLY BETWEEN ITS OUTPUT AND ITS INPUT AND INCLUDING A FEEDBACK RESISTOR, TO WHICH FEEDBACK RESISTOR A RESET INPUT RESISTOR IS CONNECTED AT A SUMMING POINT IN SAID SECOND LOOP, AND LOW OUTPUT IMPEDANCE SOURCE MEANS RESPONSIVE TO THE POTENTIAL AT SAID SUMMING POINT SELECTIVELY TO COMPLETE SAID SECOND FEEDBACK LOOP WHEREBY THE OUTPUT POTENTIAL OF SAID OPERATIONAL AMPLIFIER MAY BE RAPIDLY RESET TO THE VALUE OF A POTENTIAL APPLIED VIA SAID INPUT RESISTOR.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |