Servo data writing apparatus for supporting the free end of a ro

Details Servo data writing apparatus for supporting the free end of a ro Servo data writing apparatus for supporting the free end of a ro

1994-12-22

1997-04-01

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 9807, G11B 5596

Patent

active

056172672

ABSTRACT:
An HDD, to which servo data is written, is fixed on a base. As an upper base moves, a both-end supporting mechanism provided on the upper base approaches a rotation shaft which supports a disk. When the both-end supporting mechanism is brought into full contact with the tip portion of the free end of the rotation shaft, a process of writing servo data is carried out on the disk. While writing the servo data, the rotation shaft is maintained in the both-end supported state, and therefore a non-repeatable vibration of the rotation shaft caused by a rotation of a spindle motor is suppressed. After the servo data writing process, the both-end supporting mechanism is withdrawn from the rotation shaft as the upper base moves.

REFERENCES:
patent: 3641529 (1972-02-01), Bitzer et al.
patent: 4920442 (1990-04-01), Dimmick
patent: 4980783 (1990-12-01), Moir et al.
patent: 5162955 (1992-11-01), Burdenko

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