Apparatus for recording data, apparatus for reproducing data, an

Details Apparatus for recording data, apparatus for reproducing data, an Apparatus for recording data, apparatus for reproducing data, an

1997-08-11

2000-05-16

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of equalizing

360 46, 375231, G11B 5035, G11B 509

Patent

active

060645369

ABSTRACT:
A reproduced signal of a test signal recorded together with data on a recording medium in each unit recording area thereof is equalized in waveform by an adaptive waveform equalizing means while tap coefficients thereof are being varied. The tap coefficients obtained when an equalized signal is as close to an ideally equalized dignal as possible are used as optimum tap coefficients, and the reproduced signals of the data in the unit recording areas are equalized in waveform using the optimum tap coefficients.
The data can be equalized in waveform stably, reliably, and quickly by a small-scale circuit. There is provided an apparatus for reproducing data so as to be able to achieve high-density recording.

REFERENCES:
patent: 5452279 (1995-09-01), Yokota et al.
patent: 5886844 (1999-03-01), Shimizu

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