Patent ID: 7692570

Claim:
An analog to digital converter device comprising: an input configured to receive a radio frequency (RF) signal having a bandwidth centered at a first frequency; a plurality of delay elements each having an output and coupled in series to the input, wherein each output is configured to provide the RF signal with a temporal delay corresponding to a different number of the delay elements; a sample rate reduction system having a plurality of inputs each being coupled to a corresponding one of the delay element outputs, and configured to sample the delayed RF signals and provide M-sample outputs, each of the M-sample outputs being sampled at a reduced sampling rate equal to the sampling rate divided by M, M being an integer sample rate reduction value; and an N th order complex bandpass filter coupled to the sample rate reduction system, the complex bandpass filter being configured to filter each of the M-sample outputs to obtain a plurality of complex baseband signals; wherein the complex bandpass filter includes at least one filter element, each of the at least one filter elements being coupled to one of a plurality of M-analog to digital converters; and wherein each of the at least one filter elements includes a first filter element and a second filter element, the first filter element multiplying the sample output by an in-phase filter weight and the second filter element multiplying the sample output by a quadrature-phase filter weight.