Digital receiver having programmable complex threshold detectors and threshold interpreters
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United States of America Patent
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Dec 14, 1999
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N/A
app pub date -
Aug 15, 1997
filing date -
Aug 15, 1997
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Abstract
A programmable digital baseband receiver that processes a large number of signal waveforms and data rates. Programmable elements of the receiver implement coherent signal detection, automatic gain control and decision processing that permits processing of a large number of signal bandwidth efficient QAM and similar signal formats. The receiver comprises a threshold array having a plurality of programmable complex threshold detectors, and selectable decoder tree logic structures embodied in threshold interpreters. Each programmable complex threshold detector is a fully programmable I, Q threshold detector employing programmable I, Q sign threshold detectors that is adapted to the received complex baseband signal constellation.
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