Patent ID: 9070396
Filing Date: 2015-06-30
Classification: G11B

Abstract:
1. A method for writing a plurality of servo tracks onto a disk, wherein each servo track comprises one or more servo sectors, the method comprising: rotating the disk at a constant angular velocity; while the disk is rotating at the constant angular velocity, writing, via a read/write head, a sequence of tracks onto the disk, wherein each track of the sequence of tracks comprises timing information associated with the rotation of the disk; based on timing information included in a first track of the sequence of tracks, synchronizing a signal to the rotation of the disk; based on synchronizing the signal to the rotation of the disk, writing a first one or more servo sectors onto the disk; detecting an error in timing information included in a second track of the sequence of tracks relative to the timing information included in the first track of the sequence of tracks; based on (i) the detected error and (ii) the timing information included in the second track of the sequence of tracks, re-synchronizing the signal to the rotation of the disk; and based on re-synchronizing the signal to the rotation of the disk, writing a second one or more servo sectors onto the disk.