Magnetic disk drive with function assignment and...

Details Magnetic disk drive with function assignment and... Magnetic disk drive with function assignment and...

Filed on

2008-09-16

Date issued

2008-09-16

Examiner

Wong, K. (Department: 2627)

Patent Class

Dynamic magnetic information storage or retrieval

SubClass

Automatic control of a recorder mechanism

Type

Reexamination Certificate

Status

active

Patent number

11355824

Description

ABSTRACT:
Embodiments of the invention provide a disk drive that may perform part of a function assignment process without being connected to a special test apparatus. In one embodiment, servo data is written only into dedicated regions of a disk. A function assignment program is stored within the dedicated regions. When a processor is powered on, the processor refers to a state setter and judges whether the function assignment program is to be executed. The state setter is constituted by a nonvolatile memory or a jumper block. The function assignment program includes data relating to servo data writing based on a self-servo writing scheme, and data relating to parameter setup.

REFERENCES:
patent: 4590557 (1986-05-01), Lillie
patent: 5448429 (1995-09-01), Cribbs et al.
patent: 5541784 (1996-07-01), Cribbs et al.
patent: 7209312 (2007-04-01), Sutardja
patent: 2004/0179285 (2004-09-01), Ogasawara et al.
patent: 60-251570 (1985-12-01), None

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