US3387282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Input for digital controller
Assignee: International Business Machines Corp
•
Filing: 1966-01-17
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Granted: 1968-06-04
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Expires: 1986-01-17
Abstract
No abstract record available.
Inventors
- 👤 James O Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:28
CPC Classifications
G; G05; G05B; G05B15/00; G05B15/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A SYSTEM FOR ENTERING A NEW SET POINT IN A MULTILOOP DIGITAL CONTROLLER COMPRISING THE COMBINATION OF; AN ADJUSTABLE ANALOG DEVICE FOR GENERATING A VOLTAGE REPRESENTATIVE OF A DESIRED SET POINT; ANALOG TO DIGITAL CONVERTER MEANS RESPONSIVE TO SAID ANALOG VOLTAGE FOR GENERATING A DIGITAL SIGNAL CORRESPONDING TO THE VALUE OF SAID DESIRED SET POINT; AND THE DIGITAL CONTROLLER HAVING A PLURALITY OF SUCCESSIVELY SCANNED LOOPS, SAID DIGITAL CONTROLLER FURTHER INCLUDING AN EXTRA LOOP POSITION, MEANS FOR READING SAID ANALOG VOLTAGE IN THE EXTRA LOOP POSITION; MEANS TO PRODUCE A DIGITAL SET POINT SIGNAL, AND MEANS FOR ENTERING THE SET POINT SIGNAL IN A SELECTED LOOP.
Claim 2
Independent Claim
106 words
A SYSTEM FOR ENTERING A NEW SET POINT IN A MULTILOOP DIGITAL CONTROLLER COMPRISING THE COMBINATION OF; AN ADJUSTABLE ANALOG DEVICE FOR GENERATING A VOLTAGE REPRESENTATIVE OF A DESIRED SET POINT; ANALOG TO DIGITAL CONVERTER MEANS RESPONSIVE TO SAID ANALOG VOLTAGE FOR GENERATING A DIGITAL SIGNAL CORRESPONDING TO THE VALUE OF SAID DESIRED SET POINT; AND THE DIGITAL CONTROLLER HAVING A PLURALITY OF SUCCESSIVELY SCANNED LOOPS, SAID DIGITAL CONTROLLER FURTHER INCLUDING AN EXTRA LOOP POSITION, MEANS FOR READING SAID ANALOG VOLTAGE IN THE EXTRA LOOP POSITION; MEANS TO PRODUCE A DIGITAL SET POINT SIGNAL, AND MEANS FOR ENTERING THE SET POINT SIGNAL IN A SELECTED LOOP.
References Cited (Backward Citations)
US2883255A
Cited
US3034718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |