US3216676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-adaptive control system
Assignee: Unisys Corp
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Filing: 1963-05-20
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Granted: 1965-11-09
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Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Richard J Brown
- 👤 Richard E Andeen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:03
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/08; G05D1/0808; G05D1/0816; G05D1/0825
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A CONTROL SYSTEM FOR CONTROLLING A CONDITION TO MAINTAIN A DESIRED CONDITION UNDER A RANGE OF OPERATING CONDITIONS AFFECTING THE RESPONSE CHARACTERISTICS OF SAID SYSTEM AND ITS ABILITY TO MAINTAIN SAID DESIRED CONDITION, SAID CONTROL SYSTEM COMPRISING (A) A SOURCE OF ERROR SIGNAL RESPONSIVE TO DEPARTURES OF SAID CONDITION FROM SAID DESIRED CONDITION, (B) SIGNAL RESPONSIVE MEANS FOR CONTROLLING THE CONDITION OF SAID SYSTEM, (C) VARIABLE GAIN COUPLING MEANS COUPLING SAID ERROR SIGNAL WITH SAID SIGNAL RESPONSIVE MEANS IN A SENSE TO CONTROL SAID SYSTEM TO TEND TO MINIMIZE SAID ERROR SIGNAL, (D) ERROR SIGNAL RESPONSIVE MEANS CONNECTED TO RECEIVE SAID ERROR SIGNAL AND RESPONSIVE TO THE FREQUENCY SPECTRUM OF SAID ERROR SIGNAL FOR MEASURING AND SUPPLYING AN OUTPUT SIGNAL IN ACCORDANCE WITH THE DIFFERENCE BETWEEN THE ENERGY CONTENT OF THOSE PORTIONS OF SAID ERROR SIGNAL FREQUENCY SPECTRUM IN WHICH AN INCREASE IN THE GAIN OF THE VARIABLE GAIN COUPLING MEANS PRODUCES A DECREASE IN ENERGY AND THOSE PORTIONS OF THE FREQUENCY SPECTRUM WHEREIN AN INCREASE IN THE GAIN OF THE VARIABLE GAIN COUPLING MEANS PRODUCES AN INCREASE IN ENERGY, (E) AND MEANS RESPONSIVE TO SAID OUTPUT FOR VARYING THE GAIN OF SAID COUPLING MEANS IN ACCORDANCE WITH ACCORDANCE WITH SAID OUTPUT SIGNAL.
Claim 2
Dependent Claim
203 words
A CONTROL SYSTEM FOR CONTROLLING A CONDITION TO MAINTAIN A DESIRED CONDITION UNDER A RANGE OF OPERATING CONDITIONS AFFECTING THE RESPONSE CHARACTERISTICS OF SAID SYSTEM AND ITS ABILITY TO MAINTAIN SAID DESIRED CONDITION, SAID CONTROL SYSTEM COMPRISING (A) A SOURCE OF ERROR SIGNAL RESPONSIVE TO DEPARTURES OF SAID CONDITION FROM SAID DESIRED CONDITION, (B) SIGNAL RESPONSIVE MEANS FOR CONTROLLING THE CONDITION OF SAID SYSTEM, (C) VARIABLE GAIN COUPLING MEANS COUPLING SAID ERROR SIGNAL WITH SAID SIGNAL RESPONSIVE MEANS IN A SENSE TO CONTROL SAID SYSTEM TO TEND TO MINIMIZE SAID ERROR SIGNAL, (D) ERROR SIGNAL RESPONSIVE MEANS CONNECTED TO RECEIVE SAID ERROR SIGNAL AND RESPONSIVE TO THE FREQUENCY SPECTRUM OF SAID ERROR SIGNAL FOR MEASURING AND SUPPLYING AN OUTPUT SIGNAL IN ACCORDANCE WITH THE DIFFERENCE BETWEEN THE ENERGY CONTENT OF THOSE PORTIONS OF SAID ERROR SIGNAL FREQUENCY SPECTRUM IN WHICH AN INCREASE IN THE GAIN OF THE VARIABLE GAIN COUPLING MEANS PRODUCES A DECREASE IN ENERGY AND THOSE PORTIONS OF THE FREQUENCY SPECTRUM WHEREIN AN INCREASE IN THE GAIN OF THE VARIABLE GAIN COUPLING MEANS PRODUCES AN INCREASE IN ENERGY, (E) AND MEANS RESPONSIVE TO SAID OUTPUT FOR VARYING THE GAIN OF SAID COUPLING MEANS IN ACCORDANCE WITH ACCORDANCE WITH SAID OUTPUT SIGNAL.
References Cited (Backward Citations)
US3079108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |