Adaptive equalizer for use with clock and data recovery circuit of serial communication link
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United States of America Patent
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Mar 29, 2011
Grant Date -
Oct 9, 2008
app pub date -
Oct 1, 2007
filing date -
Apr 9, 2007
priority date (Note) -
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Abstract
An adaptive equalizer system for use in a serial communication link uses timing information generated by a phase detector of a clock and data recovery circuit of the serial communication link and a frequency pattern of the recovered data to determine whether the data received over the serial communication link is over-equalized or under-equalized. The equalizer strength of the adaptive equalizer system is adjusted based on such determination.
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