Patent ID: 8203800
Filing Date: 2012-06-19
Classification: G11B

Abstract:
1. A data storage medium comprising: a plurality of circumferential data tracks, each data track being a contiguous data region; and a plurality of servo regions configured to provide positioning information to a reading device, each of the plurality of servo regions radially extending a distance greater than 100 times a track width of one of the plurality of circumferential data tracks, wherein each of the plurality of data tracks corresponds to more than one of the plurality of servo regions, wherein each of the plurality of servo regions corresponds to more than one of the plurality of data tracks, wherein the more than one of the plurality of servo regions are configured to provide positioning information to the reading device at discrete times corresponding to a data operation of a corresponding data track, wherein the more than one of the plurality of servo regions are configured to provide positioning information to the reading device before and during a data operation of a corresponding data track, and wherein one of the plurality of servo regions is configured to provide positioning information to the reading device before a data operation of a first subset of the plurality of data tracks and during a data operation of a second subset of the plurality of data tracks.