Noise reducing estimator
US5483438A · kind A · utility
12Cited by
13References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 1992 |
| Grant date | Jan 9, 1996 |
| Priority date | — |
| Expiry date | Apr 6, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B13/04
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An estimator for reducing noise is disclosed. The estimator receives an input signal from controllably driven mechanical parts (the "plant"), estimates an internal physical quantity in the plant and outputs a first estimated physical quantity. A low frequency filter receives a detection signal from the plant. Another estimator receives the low frequency detection signal and outputs a second estimated physical quantity. A mixer receives the first and second estimated physical quantities and outputs a third estimated physical quantity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.