MPSK equalizer
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United States of America Patent
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N/A
Issued Date -
Jun 19, 2003
app pub date -
Sep 11, 2002
filing date -
Sep 11, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Methods and circuits for equalizers using a trellis having a reduced number of states and employing a partial retrace and tentative trace back procedure that simplifies the circuitry needed to perform metric calculations and to store the results. Exemplary embodiments also provide soft decisions. These soft decisions may be adaptively scaled by the estimated signal to noise ratio (SNR). Initial and final states may be programmably designated.
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