Dynamic bandwidth filter for an FM receiver
US7729679B1 · kind B1 · utility
6Cited by
4References
41Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 2007 |
| Grant date | Jun 1, 2010 |
| Priority date | — |
| Expiry date | Sep 8, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/1027
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an apparatus, method, and system for reducing interference with an input signal to an FM receiver, a plurality of inputs are filtered by a first stage of filters. The outputs are received by an interference detector and further processed by a second filtering stage, an energy calculation stage, and a comparator stage. A switch, responsive to the outputs of the comparator stage, may output one of the first stage filter outputs based on a first set of comparator outputs and may output an interpolated value determined by the first stage filter outputs and based on a second set of comparator outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.