Partial response decision-feedback equalization with adaptation based on edge samples

A receiver circuit comprising:

• a partial response equalizer to receive an input data signal and apply respective equalizer coefficients to the input data signal, the partial response equalizer including parallel decision paths to provide respective sampled signals for selection at a data output based on values of prior data outputs;
• and
• where the equalizer coefficients are based on edge-error information associated with the input data signal.

A method comprising:

• detecting edge-error information associated with a received data signal;
• and
• equalizing the received data signal along parallel decision paths by applying respective equalizer coefficients to the data signal, where the equalizer coefficients are based on the edge-error information.

A receiver circuit comprising:

• a partial response equalizer to receive an input data signal and apply respective equalizer coefficients to the input data signal;
• and
• where the equalizer coefficients are based on edge-error information associated with the input data signal, the edge-error information including a sampled voltage value of the data signal at an expected edge time of the data signal.