Patent ID: 7974036
Filing Date: 2011-07-05
Classification: B82Y,G11B

Abstract:
1. A method comprising: writing a known sequence of codes to one data array of a magnetic storage medium in the magnetic storage device, the one data array having a plurality of dots located thereon, the dots provided in a plurality of groupings with the groupings extending along the one data array, wherein spacing of the dots of each dot grouping is different from spacing of the dot groupings; reading the one data array after the known sequence of codes has been written thereto; determining whether write synchronization of the magnetic storage device needs to be corrected based on the read information; and correcting write synchronization of the magnetic storage device with respect to the one data array if determination indicates such correction is needed, whereby such correction comprises shifting a write-timing window forward or back along the one data array by at least one dot grouping.