Systems and methods for finite impulse response adaptation for gain and phase control
US8779847B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2012 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Jul 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/32
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
System and methods are provided for signal processing. For example, an input signal is received at a finite impulse response filter circuit including a plurality of stages, where each stage of the plurality of stages is associated with a sample value of the input signal and a stage weight. An output signal is generated using the finite impulse response filter circuit, the output signal being equal to a weighted sum of the sample values of the input signal. An error signal is generated to indicate a difference between the output signal and a target. A constraint is applied to one or more of the stage weights. The stage weights are changed within the constraint to reduce a magnitude of the error signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.