Fault-tolerant sample-data servo pattern

G - Physics – 11 – B

Patent

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Details

G11B 5/82 (2006.01) G11B 5/455 (2006.01) G11B 5/596 (2006.01) G11B 20/12 (2006.01)

Patent

CA 2236371

A headerless, faul-tolerant sample-data servo pattern, comprising an alternating sequence of first and second servo sectors (300, 300'), with the first servo sectors each including a partial track address and circumferential orientation information (330), and the second servo sectors each including a full track address (335 and 340), provides an absolute indication of a read/write head's circumferential orientation along a given track on a magnetic disk which is robust in the presence of defects in the magnetic recording medium.

L'invention concerne un servo-motif de données-échantillons sans en-tête insensible aux défaillances comprenant une séquence de premiers servo-secteurs alternant avec des seconds servo-secteurs (300, 300'), les premiers servo-secteurs comprenant chacun une adresse de piste partielle et une information d'orientation circonférentielle (330) et les seconds servo-secteurs comprenant chacun une adresse complète de piste (335 et 340). Le servo-motif fournit une indication absolue de l'orientation circonférentielle de la tête d'écriture/lecture le long d'une piste donnée sur un disque magnétique pouvant s'accommoder de la présence de défauts dans le support d'enregistrement magnétique.

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