Magnetic disk having an index area and a limited number of radia

Details Magnetic disk having an index area and a limited number of radia Magnetic disk having an index area and a limited number of radia

1989-11-14

1990-10-16

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Record medium

Disk

360 7707, 360 7708, G11B 582

Patent

active

049640097

ABSTRACT:
A magnetic disk, which is used for recording and reproducing data with a read/write head. The magnetic disk has an index area with an index signal recorded therein and a plurality of servo sectors formed between a plurality of data areas subsequent to the index area. Each servo sector has a servo information area, in which a servo information pattern adapted for positioning the read/write head is formed, and first and second gap sections provided on the both sides of the servo information area for absorbing rotational variations of the disk.

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