Even harmonic distortion compensation for digital data detection

Details Even harmonic distortion compensation for digital data detection Even harmonic distortion compensation for digital data detection

1993-04-29

1994-11-22

Hajec, Donald

Dynamic magnetic information storage or retrieval

Converting an analog signal to digital form for recording;...

360 46, G11B 500, G11B 509

Patent

active

053674090

ABSTRACT:
Apparatus and method of even harmonic distortion compensation are provided for digital data detection in a disk file. The disk file includes a magneto-resistive (MR) head or other magnetic transducer head and an analog-to-digital converter (ADC) for providing a sampled readback signal. An even harmonic filter is coupled to the ADC for providing a filtered readback signal having only even harmonic components. An adder subtracts the filtered readback signal from the sampled readback signal for providing a compensated output signal. The compensated output signal is applied to a digital channel of the disk file.

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