US3096471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optimizing automatic control servosystem
Assignee: International Business Machines Corp
•
Filing: 1960-10-07
•
Granted: 1963-07-02
•
Expires: 1980-10-07
Abstract
No abstract record available.
Inventors
- 👤 Taylor Wilfred Kenelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:27
CPC Classifications
G; G05; G05B; G05B13/00; G05B13/02; G05B13/0205; G05B13/024; G05B13/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
POSITION CONTROL SYSTEM COMPRISING A CONTROLLING MEMBER, A FORWARD SIGNAL PATH INCLUDING AN AMPLIFIER, A MOTOR, A CONTROLLED MEMBER DRIVEN BY SAID MOTOR IN ACCORDANCE WITH THE OUTPUT OF SAID AMPLIFIER A TACHOMETER GENERATOR DRIVEN BY SAID MOTOR AND PROVIDING A FEEDBACK SIGNAL PROPORTIONAL FOR THE VELOCITY OF SAID MOTOR, MEANS FOR PROVIDING A FEEDBACK SIGNAL RELATED TO THE POSITION OF SAID CONTROLLED MEMBER AND MEANS FOR COMBINING AT THE INPUT TO SAID AMPLIFIER A SIGNAL FROM SAID CONTROLLING MEMBER AND SAID FEEDBACK SIGNALS TO FORM AN ERROR SIGNAL, WHEREIN SAID VELOCITY FEEDBACK SIGNAL IS FED THROUGH A FEEDBACK PATH INCLUDING A RESISTANCE NETWORK IN WHICH ARE PROVIDED MEANS FOR SELECTING A PORTION OF SAID VELOCITY FEEDBACK SIGNAL AND SWITCH MEANS FOR PERIODICALLY VARYING THE LEVEL OF THE FEEDBACK SIGNAL FED BACK ABOVE AND BELOW THE SELECTED PORTION, THERE BEING PROVIDED ALSO MEANS FOR OPERATING UPON SAID ERROR SIGNAL TO DERIVE THEREFROM A SIGNAL REPRESENTING THE SENSE AND RATE OF CHANGE OF SAID ERROR SIGNAL AND MEANS FOR APPLYING SAID LAST NAMED SIGNAL AND MEANS FOR APPLYING SAID VELOCITY FEEDBACK SIGNAL SELECTED.
Claim 2
Dependent Claim
182 words
POSITION CONTROL SYSTEM COMPRISING A CONTROLLING MEMBER, A FORWARD SIGNAL PATH INCLUDING AN AMPLIFIER, A MOTOR, A CONTROLLED MEMBER DRIVEN BY SAID MOTOR IN ACCORDANCE WITH THE OUTPUT OF SAID AMPLIFIER A TACHOMETER GENERATOR DRIVEN BY SAID MOTOR AND PROVIDING A FEEDBACK SIGNAL PROPORTIONAL FOR THE VELOCITY OF SAID MOTOR, MEANS FOR PROVIDING A FEEDBACK SIGNAL RELATED TO THE POSITION OF SAID CONTROLLED MEMBER AND MEANS FOR COMBINING AT THE INPUT TO SAID AMPLIFIER A SIGNAL FROM SAID CONTROLLING MEMBER AND SAID FEEDBACK SIGNALS TO FORM AN ERROR SIGNAL, WHEREIN SAID VELOCITY FEEDBACK SIGNAL IS FED THROUGH A FEEDBACK PATH INCLUDING A RESISTANCE NETWORK IN WHICH ARE PROVIDED MEANS FOR SELECTING A PORTION OF SAID VELOCITY FEEDBACK SIGNAL AND SWITCH MEANS FOR PERIODICALLY VARYING THE LEVEL OF THE FEEDBACK SIGNAL FED BACK ABOVE AND BELOW THE SELECTED PORTION, THERE BEING PROVIDED ALSO MEANS FOR OPERATING UPON SAID ERROR SIGNAL TO DERIVE THEREFROM A SIGNAL REPRESENTING THE SENSE AND RATE OF CHANGE OF SAID ERROR SIGNAL AND MEANS FOR APPLYING SAID LAST NAMED SIGNAL AND MEANS FOR APPLYING SAID VELOCITY FEEDBACK SIGNAL SELECTED.
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) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |