Magnetic recording apparatus with non-linear bit shift measureme

Details Magnetic recording apparatus with non-linear bit shift measureme Magnetic recording apparatus with non-linear bit shift measureme

1996-07-31

1998-07-14

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

360 40, 360 31, G11B 509

Patent

active

057813582

ABSTRACT:
A magnetic recording apparatus includes a generator, a write unit, a read unit, a detector, and a processor. The generator generates a composite data pattern of a basic period having a central adjacent bit pair between isolated bits and an isolated data pattern having the same basic period as that of the composite data pattern and only an isolated bit. The write unit writes the composite and isolated data patterns generated by the generator on a magnetic recording medium. The read unit reads out the composite and isolated data patterns written on the magnetic recording medium. The detector detects phases of frequency components of the composite and isolated data patterns read out by the read unit. The processor converts a difference between the phases of the frequency components of the composite and isolated data patterns, detected by the detector, into a nonlinear bit shift compensation factor.

REFERENCES:
patent: 5262904 (1993-11-01), Tang et al.

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