Corrected servo control signal in a servo control loop
US6445529B1 · kind B1 · utility
2Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 16, 1998 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Oct 16, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/41248
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A device and a method are disclosed for obtaining a corrected servo control signal in a servo control loop take in account a dynamic behavior of the servo control signal to calculate a new threshold for this signal. If the servo control signal for any reason goes beyond the extremum then it is corrected by replacing it with the value of the threshold. Depending on the difference between the servo control signal and the threshold the new threshold may be greater or smaller than the previous threshold value. The threshold may be a maximum or a minimum thus limiting the servo control in its maximum or in its minimum value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.