Patent ID: 7675705

Claim:
A method of using a head included in a disk storage device to write specified servo patterns for head positioning control to a disk medium used for the disk storage device, a spiral servo pattern being pre-recorded on the disk medium and including a servo burst signal region and a sync mark region located adjacent to the servo burst signal region, the method comprising: using the head to read the servo burst signal from the disk medium, when writing the specified servo patterns to the disk medium; generating position detecting data used to detect a radial position on the disk medium, on the basis of data recorded in the sync mark region, when using the head to read the spiral servo pattern from the disk medium; placing the head at a specified position on the disk medium on the basis of the servo burst signal and position detecting data read by the head and writing the specified servo patterns to the disk medium; and embedding data specifying a range on the disk medium within which the specified servo patterns are to be written to the disk medium, in the spiral servo pattern as the position detecting data based on the data recorded in the sync mark region.