US3443078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analogue computers for least-cost optimization
Assignee: Electronic Associates Inc
•
Filing: 1966-09-16
•
Granted: 1969-05-06
•
Expires: 1986-09-16
Abstract
No abstract record available.
Inventors
- 👤 Leonardo Gastao Noronha
- 👤 Norman Derick Watling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:09
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
219 words
AN ANALOGUE COMPUTER COMPRISING: A PLURALITY OF CONDUCTORS EACH ADAPTED TO CARRY A VOLTAGE REPRESENTING A RESPECTIVE VARIABLE TO BE COMPUTED, A PLURALITY OF SUMMING AMPLIFIERS, INCLUDING A LAST SUMMING AMPLIFIER, EACH HAVING AN OUTPUT POINT AND A PLURALITY OF INPUT POINTS, A RESPECTIVE PLURALITY OF FIRST COEFFICIENT POTENTIOMETERS ASSOCIATED WITH EACH OF THE SAID PLURALITY OF SUMMING AMPLIFIERS, EACH OF THESE FIRST COEFFICIENTSETTING POTENTIOMETERS CONNECTING A RESPECTIVE ONE OF THE SAID CONDUCTORS TO A RESPECTIVE ONE OF THE INPUT POINTS OF THE SUMMING AMPLIFIER WITH WHICH IT IS ASSOCIATED, A FURTHER SUMMING AMPLIFIER HAVING AN OUTPUT POINT AND A PLURALITY OF INPUT POINTS EACH DIRECTLY CONNECTED TO A RESPECTIVE ONE OF THE SAID CONDUCTORS, A FIRST PLURALITY OF ERROR UNITS EACH HAVING AN OUTPUT POINT, A FIRST INPUT POINT CONNECTED TO THE OUTPUT POINT OF A RESPECTIVE ONE EXCEPT THE SAID LAST OF THE SAID PLURALITY OF SUMMING AMPLIFIERS, AND AT LEAST ONE SECOND INPUT POINT, EACH SAID SECOND INPUT POINT HAVING CONNECTED THERETO MEANS FOR APPLYING THERETO A LIMIT-DEFINING SIGNAL AND THE ERROR UNIT BEING ARRANGED TO PROVIDE AT ITS OUTPUT POINT A SIGNAL PROPORTIONAL TO THE EXTENT TO WHICH A SIGNAL APPLIED TO THE SAID FIRST INPUT POINT THEREOF IS BEYOND A LIMIT DEFINED BY A LIMIT-DEFINING SIGNAL APPLIED TO ANY SAID SECOND INPUT POINT THEREOF,
Claim 2
Dependent Claim
219 words
AN ANALOGUE COMPUTER COMPRISING: A PLURALITY OF CONDUCTORS EACH ADAPTED TO CARRY A VOLTAGE REPRESENTING A RESPECTIVE VARIABLE TO BE COMPUTED, A PLURALITY OF SUMMING AMPLIFIERS, INCLUDING A LAST SUMMING AMPLIFIER, EACH HAVING AN OUTPUT POINT AND A PLURALITY OF INPUT POINTS, A RESPECTIVE PLURALITY OF FIRST COEFFICIENT POTENTIOMETERS ASSOCIATED WITH EACH OF THE SAID PLURALITY OF SUMMING AMPLIFIERS, EACH OF THESE FIRST COEFFICIENTSETTING POTENTIOMETERS CONNECTING A RESPECTIVE ONE OF THE SAID CONDUCTORS TO A RESPECTIVE ONE OF THE INPUT POINTS OF THE SUMMING AMPLIFIER WITH WHICH IT IS ASSOCIATED, A FURTHER SUMMING AMPLIFIER HAVING AN OUTPUT POINT AND A PLURALITY OF INPUT POINTS EACH DIRECTLY CONNECTED TO A RESPECTIVE ONE OF THE SAID CONDUCTORS, A FIRST PLURALITY OF ERROR UNITS EACH HAVING AN OUTPUT POINT, A FIRST INPUT POINT CONNECTED TO THE OUTPUT POINT OF A RESPECTIVE ONE EXCEPT THE SAID LAST OF THE SAID PLURALITY OF SUMMING AMPLIFIERS, AND AT LEAST ONE SECOND INPUT POINT, EACH SAID SECOND INPUT POINT HAVING CONNECTED THERETO MEANS FOR APPLYING THERETO A LIMIT-DEFINING SIGNAL AND THE ERROR UNIT BEING ARRANGED TO PROVIDE AT ITS OUTPUT POINT A SIGNAL PROPORTIONAL TO THE EXTENT TO WHICH A SIGNAL APPLIED TO THE SAID FIRST INPUT POINT THEREOF IS BEYOND A LIMIT DEFINED BY A LIMIT-DEFINING SIGNAL APPLIED TO ANY SAID SECOND INPUT POINT THEREOF,
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) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |