Patent ID: 7161759
Filing Date: 2007-01-09
Classification: G11B

Abstract:
1. In a disk drive that includes a disk and a head that reads from and writes to the disk, wherein the disk drive generates a position error signal (PES) to position the head relative to the disk in response to the head reading servo bursts on the disk, a method for self-servo writing, comprising: providing first servo bursts in a first servo sector in a first track on the disk; generating PES's in response to the head reading the first servo bursts; adjusting the PES's in response to edge errors in the first servo bursts, wherein each PES is adjusted in response to a different combination of the edge errors; and self-servo writing second servo bursts in a second servo sector in a second track on the disk using the head and using the adjusted PES's to position the head, wherein the first and second servo sectors are radially aligned and each second servo burst is written using a different adjusted PES.