Disk unit creating a position sensitivity correction value using

Details Disk unit creating a position sensitivity correction value using Disk unit creating a position sensitivity correction value using

1996-08-09

1999-11-02

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7804, G11B 5596

Patent

active

059781670

ABSTRACT:
An actuator is provided with a step so as to allow FPC mounting surfaces of a read/write FPC band and of a relay FPC to be level with each other. Pointer information P4 in a ROM table is used to refer to a RAM table to acquire offset correction data.
On-track control is effected at a cross point of two-phase servo signals N and Q. A value of this cross point is measured to find a position sensitivity correction value. A gap corresponding to encode loss is provided at the trailing position of each of sectors. In read operation, a sector pulse is generated with a delay corresponding to decode loss.

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