Pade' approximant based compensation for integrated sensor modules and the like
US7859269B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2008 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Mar 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D3/022
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems using Pade' Approximant expansion ratios provide mappings between nonlinear sensors and a more linear output domain. The method includes (a) generating a variably amplified version of the input signal in accordance with a produced and variable gain defining signal; (b) generating an output signal that exhibits a substantially linear dependency from a sum of a supplied offset signal and the variably amplified version of the input signal; (c) multiplying the output signal by a supplied gain correction factor to produce a feedback gain correction signal; and (d) using the feedback gain correction signal to produce the variable gain defining signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.