Method and apparatus for servowriting in a disk drive

Details Method and apparatus for servowriting in a disk drive Method and apparatus for servowriting in a disk drive

2006-09-12

2006-09-12

Nguyen, Hoa T. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07106545

ABSTRACT:
An additive self-servowriting method that records a servo pattern on a disk surface in a disk drive is disclosed. A servowriting method according to the present invention writes an initial servo pattern with a head moved to the inner circumference of the disk at the initial time. Then, additive servowriting operation is performed to write an additive servo pattern with the head positioned in the outer circumferential direction of the disk. When it is impossible to continue the additive servowriting operation in the middle of the operation, the head is set back to the previous additive servo pattern to resume the additive servowriting operation.

REFERENCES:
patent: 6181500 (2001-01-01), Serrano et al.
patent: 2004/0075935 (2004-04-01), Yatsu
patent: 2004/0160696 (2004-08-01), Meyer
patent: 8-212733 (1996-08-01), None
patent: 2001-243733 (2001-09-01), None

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