Self-equalization method for partial-response maximum-likelihood

Details Self-equalization method for partial-response maximum-likelihood Self-equalization method for partial-response maximum-likelihood

1994-03-31

1995-06-20

Hajec, Donald

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of equalizing

360 46, G11B 509

Patent

active

054265410

ABSTRACT:
Apparatus and method for providing equalization adjustment for a filter are provided in a PRML data channel. A first predetermined test pattern is written. Relative error is measured in both magnitude and phase for predetermined frequencies. A relative magnitude ratio for the predetermined frequencies and a phase delay between the predetermined frequencies are identified. A tap set is generated having predefined frequency responses at a plurality of predefined discrete frequencies.

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