US3330948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivative checking circuit for use in a computer having a plurality of integrators
Assignee: Beckman Coulter Inc
•
Filing: 1963-04-23
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Granted: 1967-07-11
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Expires: 1983-04-23
Abstract
No abstract record available.
Inventors
- 👤 Charles H Single
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:35
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A DERIVATIVE CHECKING CIRCUIT FOR USE IN AN ANALOG COMPUTER HAVING A PLURALITY OF INTEGRATORS EACH HAVING A SUMMING JUNCTION, THE COMBINATION OF: A PLURALITY OF SWITCH MEANS EACH CONNECTED TO A RESPECTIVE PAIR OF SAID SUMMING JUNCTIONS FOR CONNECTING SAID SUMMING JUNCTIONS TO A POINT OF REFERENCE POTENTIAL; A SELECT SWITCH MEANS: SAID PLURALITY OF SWITCH MEANS BEING OPERABLE TO CONNECT A SELECTED PAIR OF SAID SUMMING JUNCTIONS TO SAID SELECT SWITCH MEANS; AN OUTPUT TERMINAL AND A POINT OF REFERENCE POTENTIAL; SAID SELECT SWITCH MEANS BEING OPERABLE TO CONNECT ONE OF THE SUMMING JUNCTIONS OF SAID SELECTED PAIR TO SAID OUTPUT TERMINAL AND THE OTHER SUMMING JUNCTION OF SAID SELECTED PAIR TO SAID POINT OF REFERENCE POTENTIAL AND MEANS CONNECTED TO SAID OUTPUT TERMINAL FOR PROVIDING AN OUTPUT SIGNAL INDICATIVE OF THE SIGNAL AT THE SUMMING JUNCTION CONNECTED THERETO BY SAID SELECT SWITCH MEANS.
Claim 2
Dependent Claim
146 words
A DERIVATIVE CHECKING CIRCUIT FOR USE IN AN ANALOG COMPUTER HAVING A PLURALITY OF INTEGRATORS EACH HAVING A SUMMING JUNCTION, THE COMBINATION OF: A PLURALITY OF SWITCH MEANS EACH CONNECTED TO A RESPECTIVE PAIR OF SAID SUMMING JUNCTIONS FOR CONNECTING SAID SUMMING JUNCTIONS TO A POINT OF REFERENCE POTENTIAL; A SELECT SWITCH MEANS: SAID PLURALITY OF SWITCH MEANS BEING OPERABLE TO CONNECT A SELECTED PAIR OF SAID SUMMING JUNCTIONS TO SAID SELECT SWITCH MEANS; AN OUTPUT TERMINAL AND A POINT OF REFERENCE POTENTIAL; SAID SELECT SWITCH MEANS BEING OPERABLE TO CONNECT ONE OF THE SUMMING JUNCTIONS OF SAID SELECTED PAIR TO SAID OUTPUT TERMINAL AND THE OTHER SUMMING JUNCTION OF SAID SELECTED PAIR TO SAID POINT OF REFERENCE POTENTIAL AND MEANS CONNECTED TO SAID OUTPUT TERMINAL FOR PROVIDING AN OUTPUT SIGNAL INDICATIVE OF THE SIGNAL AT THE SUMMING JUNCTION CONNECTED THERETO BY SAID SELECT SWITCH MEANS.
References Cited (Backward Citations)
US3231728A
Cited
US3231729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |