Appeal No. 97-0260
Application 08/287,477
28. Claims 4 to 7 and 21 to 27 have been canceled.
The invention concerns a method for writing servo
patterns and self servo writing file in a direct access
storage device. After a data storage disk file is assembled,
servo information used to write and read data is written on
the disk file. The need for prerecorded servo patterns often
written with a servo writer system is eliminated. The
invention teaches effective and efficient servo writing
methods without requiring the use of a clock track or external
devices. Only components of the disk file are used in writing
the servo information according to the invention. Typically,
a clock head has been used to overcome the circumferential
timing synchronizing problem on the surface of the disk.
Using the motor drive of the device or the clock frequency
multiples allows synchronization with the disk surface
eliminating the need for a clock head.
Claim 1 is selected as representative of the invention
and is reproduced below:
1. A method for writing servo patterns in a direct
access storage device including at least one data storage
media mounted for rotation by a drive motor and an actuator
-2-
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