Patent ID: 7400675

Claim:
An adaptive equalization system for automatically adjusting an equalizer to compensate a signal's frequency dependent loss comprising: a first detector circuit adapted to receive an equalized signal and operable responsive to the highest voltage level of the equalized signal to generate a first output signal; a second detector circuit adapted to receive the equalized signal and operable responsive to the lowest voltage level of the equalized signal to generate a second output signal; a reference generator adapted to receive the first and second output signals and operable responsive to the first and second output signals to generate a third and fourth output signals and a common mode reference signal; a first slicer adapted to receive the equalized signal and the third signal, and operable to generate a signal P; a second slicer adapted to receive the equalized signal and the fourth signal, and operable to generate a signal N; and a comparator circuit adapted to receive the common mode reference signal, the equalized signal and a clock signal, and operable responsive to a settling voltage of the equalized signal to generate a signal T, wherein the signals P, N and T are used to determine whether the signal is under equalized or over equalized.