Patent ID: 7194050

Claim:
An arrangement for reducing narrowband interference in a wideband signal, comprising: a first power detector for producing a first power signal representing power of the wideband signal over a bandwidth of the wideband signal; a selector for selecting any one of a plurality of narrowband parts of the wideband signal; a second power detector for producing a second power signal representing power of a narrowband part of the wideband signal selected by the selector; a filter for filtering the wideband signal to remove therefrom a selected narrowband part of the wideband signal; and a control circuit responsive to the first and second power signals, scaled in accordance with the wideband and narrowband bandwidths, to detect interference in the narrowband part of the wideband signal selected by the selector and, in response to such detection, to control the filter to select said narrowband part of the wideband signal selected by the selector thereby to reduce said interference.