Timing recovery circuit in QAM modems
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United States of America Patent
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-
Aug 21, 2001
Issued Date -
N/A
app pub date -
Oct 22, 1999
filing date -
Oct 22, 1999
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A timing recovery system and method for QAM signals having different symbol rates are disclosed. After sampling the QAM baseband signal, a symbol timing recovery logic including a generator of a weighting function is utilized to develop a local error signal. The local error signal averaged over a predetermined time period is utilized to make a global decision regarding the sampling point position relative to the baseband signal maximum/minimum.
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