A method of servo writing is disclosed in which a servo writer incorporated in a disk drive writes a servo pattern into a disk medium. The servo writer controls positioning of a head on the basis of a basic servo pattern recorded on the disk medium to write a new servo pattern in the vicinity of the...http://www.google.com/patents/US20040264031?utm_source=gb-gplus-sharePatent US20040264031 - Method and apparatus for servo writing using incorporated servo writer in a disk drive
