Baudrate timing recovery technique
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United States of America Patent
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May 28, 1991
Grant Date -
N/A
app pub date -
Aug 11, 1989
filing date -
Aug 11, 1989
priority date (Note) -
Expired
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Abstract
A digital pulse receiver is disclosed in which the transmitted signal is recovered from the received signal by using a decision feedback equalizer to estimate and then remove the intersymbol interference. A second decision feedback equalizer is used to estimate the timing of the sampling pulse. An optimum timing phase is derived by driving the sampling clock with a phase adjustment signal optimizing the amplitude of the sampling pulse relative to the next preceding pre-cursor pulse. The signal recovery decision feedback equalizer and the timing recovery decision feedback equalizer share the same tapped delay line to provide a fully digital pulse receiver operating at the baud rate to provide an optimum sampling phase.
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