Digital block processor for processing a plurality of transmission channels in a wireless radiotelephony system
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United States of America Patent
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Nov 22, 1994
Grant Date -
N/A
app pub date -
Dec 31, 1991
filing date -
Dec 31, 1991
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A digital block receiver system, in a cellular/wireless FM radiotelephony system, receives and heterodyne a block of cellular/wireless receive channels to a very low block IF signal by analog processing. This block IF signal is applied to a precision high speed A/D converter and converted to a digitized time series. A window function is applied to the digitized time series and a high speed FFT is applied to frequency isolate the individual channels. The active channels are digitally processed by a DSP to recover the FM channel modulation.
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