Writing spirals based on servo tracks of a different sample...

Details Writing spirals based on servo tracks of a different sample... Writing spirals based on servo tracks of a different sample...

2008-08-15

2011-12-13

Sniezek, Andrew L (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S077070

Reexamination Certificate

active

08077422

ABSTRACT:
Methods, systems and computer program products for launching one or more reference spiral sets using different tracks are described. In some implementations, a method can be used that includes writing a first spiral set starting at a first track and determining a radial offset. Then a second track is determined based on the radial offset. A second spiral set is also written starting at the second track. A spiral set-to-wedge ratio is determined based on a number of spiral sets to be written. Subsequently, servo information can be written using the first spiral set and the second spiral set. The servo information can include one or more sets of servo wedges, which can be written based on the spiral set-to-wedge ratio.

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