Correcting radial incoherence in servo track sensing

Details Correcting radial incoherence in servo track sensing Correcting radial incoherence in servo track sensing

2007-10-23

2007-10-23

Wellington, Andrea (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

C360S039000, C360S051000

Reexamination Certificate

active

11012813

ABSTRACT:
A servo track sensing system receives equalized servo data from a servo demodulator and corrects for radial incoherence in the servo data. The system has a radial incoherence estimator that receives the equalized servo data and provides a radial incoherence estimate. A sequence detector receives the equalized servo data and the radial incoherence estimate, and provides a sequence detector output. A correlator receives the sequence detector output and provides correlator output data. The correlator output data has a reduced level of errors due to radial incoherence.

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