System for the reading of a multitrack recording medium for enab

Details System for the reading of a multitrack recording medium for enab System for the reading of a multitrack recording medium for enab

1995-04-10

1998-09-22

Sniezek, Andrew L.

Dynamic magnetic information storage or retrieval

Checking record characteristics or modifying recording...

360 63, 360 7712, G11B 502

Patent

active

058123334

ABSTRACT:
A system for the reading of a multitrack recording medium comprising a device enabling the reading, on the width of each track, of a number n of information samples. The system includes a filter enabling the making of several combinations of several samples of a track, these combinations differing from one another by a shift equal to one or more samples; a sub-sampling circuit that chooses a determined combination from among the different combinations of a track under the control of a position predictor; a positional error computation circuit computing the positional error of the chosen combination and giving an error correction signal to the position predictor.

REFERENCES:
patent: 5233488 (1993-08-01), Yanagihara
patent: 5309299 (1994-05-01), Crossland et al.
Research Disclosure, "Tracking Utilizing Synchronization Signals", Jan. 1992, No. 333, Emsworth, GB, p. 22.
English Abstract of Japanese Patent 01 138 663, Positioning Control Device for Disk Device, May 31, 1989, Noriaki et al.
Database WPI, Abstract, EP 0094313, Servo Control System for Magnetic Disc Storage Device--Corrects Cyclic Position Errors Between Signal Heads and Corresponding Number of Tracks Using I Iterative Correction of Mis-Position Errors, Nov. 16, 1983.

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