CPC G11B 20/10046 (2013.01) | 33 Claims |
1. An apparatus for improving equalization when reading data from a storage medium, the apparatus comprising:
a first data path comprising:
a first decoder configured to decode data output from at least one first finite impulse response (FIR) filter; and
first FIR adaptation circuitry configured to adjust a first FIR coefficient for the at least one first FIR filter; and
a second data path comprising:
at least one second FIR filter;
second FIR adaptation circuitry configured to adjust a second FIR coefficient to reach an FIR coefficient for the at least one second FIR filter that achieves a target minimum number of errors, wherein the second FIR adaptation circuitry reaches the FIR coefficient that achieves the target minimum number of errors faster than the first FIR adaptation circuitry; and
a second decoder configured to decode data output by the at least one second FIR filter.
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