Method, medium, and apparatus recording a servo pattern
AssigneeSamsung Electronics Co., Ltd.
InventorsWon-choul Yang, Keung-Youn Cho
Life of this patent
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Abstract
A method, medium, and apparatus recording a magnetic disk servo pattern. The method of recording a servo pattern, including servo information, on a magnetic disk may include an erasing of erase regions existing between burst signals contained in a burst signal recording zone of a servo pattern of the magnetic disk by applying an AC current signal of a predetermined frequency to the erase regions.
Claims18
A method of recording a reference servo pattern, including servo information, on a medium, comprising erasing at least one erase region existing between burst signals contained in a burst signal recording zone of the reference servo pattern by applying an AC current signal to the at least one erase region.
A disk drive, comprising:
- a controller to control a recording of servo pattern information onto a disk surface assembled in the disk drive;
- and
- a write/read circuit to record the servo pattern information and to erase an erase region existing between burst signals of a reference servo pattern by applying an AC current signal to the erase region.
A medium, comprising a plurality of annular tracks, each track comprising a plurality of sectors, with each sector comprising a data field storing data and a servo field comprising a recorded servo pattern, with AC-erase regions between burst signals contained in a burst signal recording zone of the servo field, erased through an AC current signal of a predetermined frequency.
Dependencies are inferred from the claim text.