Filter device for detecting and/or removing erroneous components in and/or from a signal
US8472909B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 20, 2009 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Jan 24, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2335
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention relates to a filter device (341, 342) for detecting and/or removing erroneous components like noise, deformations, glitch components or other errors in and/or from a signal, to a demodulation device using the filter device, to an information transmission system using the demodulation device and to a method for detecting a noise impulse in an input signal (Cα(t), Cα[k]). The filter device includes a summing element (510-51N, 610) connected to a correction element (540, 640). The summing element (510-51N, 610) sums the input signal (Cα(t), Cα[k]) within a reference interval (N) and the correction element (540, 640) verifies the summed input signal (IS[k]) with at least one signal condition (0, N+1, ΔCα[k]). Finally, the correction element (540, 640) outputs a predetermined signal (Cαα[k]) based on the result of the verification between the summed input signal (IS[k]) with at least one signal condition (0, N+1, ΔCα[k]). The foregoing filter device is able to remove noise from an input signal. This stabilizes the input signal against environmental influences occurring e.g. during signal transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.