Disk level servo write
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 26, 2003
Grant Date -
N/A
app pub date -
Apr 24, 2000
filing date -
Apr 24, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for assembling and operating a fixed media hard disk drive using a disk or a stack of disks on which servo information is pre-written off the drive spindle. The disks are subsequently mounted on the drive spindle and a set of rotationally concentric 'virtual tracks' for seeking and following in terms of said pre-written servo tracks are defined. The use of the concentric virtual tracks assures minimal actuator motion during drive operation and increases acceptable offtrack tolerances. The off-spindle, pre-writing of the servo information increases the efficiency of the assembly operation and reduces the clean room burden.
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