TIME-MULTIPLEXED SINGLE INPUT SINGLE OUTPUT (SISO) DATA RECOVERY CHANNEL

摘要

Apparatus and method for recovering data from a multi-channel input signal, such as but not limited to a readback signal from a bit patterned medium (BPM) having a plurality of subtracks. In accordance with some embodiments, a single input single output (SISO) equalizer is adapted to generate equalized outputs responsive to alternating subchannels of the multi-channel input signal. A detector is adapted to generate estimates of data symbols represented by the input signal responsive to the equalized outputs. A switching circuit is adapted to switch in different equalizer coefficients for use by the SISO equalizer for each of the alternating subchannels in the input signal.

主权项

1. An apparatus comprising:
a single input single output (SISO) equalizer adapted to generate equalized outputs responsive to alternating subchannels of a multi-channel input signal; a detector adapted to generate estimates of data symbols represented by the input signal responsive to the equalized outputs; and a switching circuit adapted to switch in different equalizer coefficients for use by the SISO equalizer for each of the alternating subchannels in the input signal.