Patent ID: 8705603

Claim:
A method for setting tap values for an adaptive equalizer, comprising: setting the tap values for an adaptive equalizer to a first set of values; for a plurality of different data cells, sampling and comparing an output of the adaptive equalizer at a first phase and first voltage, the first phase and the first voltage being within a data cell of the output of the adaptive equalizer; for the plurality of different data cells, sampling and comparing the output of the adaptive equalizer at a second phase and second voltage, the second phase and the second voltage being within the data cell of the output of the adaptive equalizer; determining if the sampled and compared output of the adaptive equalizer at the first phase and first voltage matches the sampled and compared output of the adaptive equalizer at the second phase and second voltage and the sampled and compared output at the first phase and voltage for at least some of the plurality of different data cells matches a predefined bit pattern; and adjusting at least one tap value for the adaptive equalizer based on a determination that the sampled and compared output of the adaptive equalizer at the first phase and first voltage does not match the sampled and compared output of the adaptive equalizer at the second phase and second voltage.