Patent ID: 8488656

Claim:
An oversampled synthesizer system, comprising: an inverse Fourier transform component configured to receive a plurality of digital input signals, each having a first sampled rate and produce a corresponding representation of a wideband signal as a plurality of parallel outputs; a plurality of digital filters, each configured to apply a transfer function to an associated one of the parallel outputs to produce a filtered output, a number of filters in the plurality of digital filters being less than a number of parallel outputs of the inverse Fourier transform component, such that at least one of the parallel outputs is not provided to any filter of the plurality of digital filters, wherein each of the plurality of digital filters has a pass band that covers a central portion of a frequency band of the associated one of the parallel outputs and a stop band that excludes a central portion of frequency bands associated with parallel outputs neighboring the associated one of the parallel outputs; and an interpolation component configured to combine the plurality of filtered outputs into a wideband digital output signal having a second sampled rate, such that the second sampled rate is substantially equal to a product of the first sampled rate and the number of filters in the plurality of digital filters.