Signal processing system and method of operation for nonlinear signal processing
US7852380B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 20, 2007 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Oct 13, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/83
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal processing system includes: defining a nonlinear function; defining a set of requirements for an output signal; obtaining an input signal; applying a cubic polynomial fitting to approximate the nonlinear function and provide an approximated nonlinear function; assigning a set of fitted polynomial parameters to the approximated nonlinear function; transforming the input signal with the approximated nonlinear function to provide a transformed signal; modifying the transformed signal by adjusting the set of fitted polynomial parameters to provide a modified signal meeting the set of requirements for the output signal; and outputting the modified signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.