Wideband parallel processing digital tuner

Details Wideband parallel processing digital tuner Wideband parallel processing digital tuner

H - Electricity

04

L

H04L 29/02 (2006.01) H04B 1/28 (2006.01) H04N 5/50 (2006.01) H04B 1/00 (2006.01)

Patent

CA 2296968

A wideband digital tuner (14') has an analog front-end section (10), a high speed analog-to-digital converter (12), demultiplexer (13) and a plurality of filters (34 1-34 2) arranged in a parallel input architecture to process wideband digital data received at extremely high sampling rates, such as at 2 Gsps (giga-samples per second). The tuner greatly attenuates an undesired spectral half of the wide bandwidth digital spectrum of the incoming digital signal using a complex band-pass filter, such as a Hilbert Transform filter. The tuner places the remaining half of the wide bandwidth digital spectrum of the incoming digital signal at complex baseband and down samples by 2. The architecture of the tuner can be partitioned into two separate halves which are hardware copies of each other.

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