Patent ID: 6448926
Filing Date: 2002-09-10
Classification: H01Q,H04B

Abstract:
In a communications system receiver operating in one or more frequency bands, consisting of various number of channels per band (for a total of N channels), and for receiving said bands of signals, the improvement in said transceiver comprising:a system of antenna and RF front end for each said band, a separate RF to IF downconverter for each said band, the IF for each band centered at a succession of frequencies Fc such that the spectra for each band are non-overlapping, with said center frequencies and a signal combiner for combining said signals, an analog-to-digital converter having an analog-to-digital converter sampling rate chosen such that one band is centered at baseband, and one or more other bands are centered at a specific relationship with the sampling rate such that each band is individually downconverted to baseband by appropriate selection of tap weight multiplying sequences, a digital downconverter for converting said digital signals to baseband signals and a single digital processor sequentially time shared among all said Bands and channels, a signal processor connected to said single digital processor for providing any final signal and/or data processing or formatting.