Adaptive equalizer for use with clock and data recovery...

Pulse or digital communications – Equalizers – Automatic

Reexamination Certificate

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C375S233000, C375S294000, C375S373000, C375S377000, C375S371000

Reexamination Certificate

active

07916780

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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patent: 2007/0002942 (2007-01-01), Simpson et al.
patent: 2008/0069276 (2008-03-01), Wong et al.
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