Patent ID: 8311167

Claim:
An ultra wide band (UWB) terminal, comprising: an encoder for encoding data signals to be transmitted into encoded data signals corresponding to a plurality of tones; a tone nulling unit for changing at least one tone of the plurality of tones into a null tone; an inverted fast Fourier transformer for performing inverted fast Fourier transformation on the encoded data signals; a low pass filter for filtering the inverted fast Fourier transformed data signals to produce first filtered data signals; a notch filter circuit including, a first shifter for shifting the first filtered data signals by a desired frequency in a first direction, a notch filter for filtering the shifted data signals, and a second shifter for shifting the filtered data signals from the notch filter by the desired frequency in a second direction to produce a second filtered data signals, the second direction being opposite to the first direction; and a radio frequency (RF) circuit for transmitting the second filtered data signals from the notch filter circuit.