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US 9,042,434 B2Granted
Filter
AssigneeIntel Corporation
InventorChristopher Brian Smart
Life of this patent
Estimating the term…
Abstract
Method and filter for filtering a signal, in which the signal is applied to a delay line having a plurality of taps. Respective weighting coefficients of a windowing function are applied to outputs from the plurality of taps to thereby generate a plurality of weighted outputs. The method comprises repeatedly selecting, for output, whichever of the weighted outputs has the highest value.
Claims12
A method of filtering a signal, comprising:
- applying the signal to a delay line having a plurality of taps;
- applying respective weighting coefficients of a windowing function to outputs from the plurality of taps to generate a plurality of weighted outputs;
- repeatedly selecting the weighted outputs with the highest value;
- filtering the selected outputs over time to generate a filtered signal, the filtering including:
- passing the selected outputs to a further delay line having a further plurality of taps;
- and
- determining an average of outputs from the further plurality of taps to generate the filtered signal;
- and
- outputting the filtered signal.
6 more elements
A method of processing a transmit signal for transmission from a transmitter, the method, comprising:
- generating a scaling factor from the transmit signal using a function which is dependent upon the value of the transmit signal and a threshold value, the threshold value indicating a maximum value to which the transmit signal is to be limited, wherein the function has a first form when the value of the transmit signal is above the threshold value and the function has a second form when the value of the transmit signal is below the threshold value;
- filtering the scaling factor to create a filtered scaling factor by applying the scaling factor to a delay line having a plurality of taps, applying respective weighting coefficients of a windowing function to outputs from the plurality of taps to thereby generate a plurality of weighted outputs, and repeatedly selecting the weighted outputs with the highest value;
- and
- applying the filtered scaling factor to the transmit signal such that the transmit signal does not exceed the maximum value indicated by the threshold value.
1 more element
A filter for filtering a signal, comprising:
- a delay line having a plurality of taps, the delay line being arranged to receive the signal;
- weighting means for applying respective weighting coefficients of a windowing function to outputs from the plurality of taps to thereby generate a plurality of weighted outputs;
- selecting means for repeatedly selecting for output the weighted outputs with the highest value to create selected outputs;
- and
- filtering means for filtering the selected outputs over time to generate a filtered signal, the filtering means including:
- a further delay line having a further plurality of taps, the further delay line being arranged to receive the selected outputs;
- and
- determining means for determining an average of outputs from the further plurality of taps to generate the filtered signal.
5 more elements
Dependencies are inferred from the claim text.