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METHOD OF DATA WRITING WITH MAGNETIC DISC DEVICE, METHOD OF SETTING OFF TRACK MARGIN, MAGNETIC DISC DEVICE AND OFF TRACK MARGIN SETTING DEVICE
METHOD OF DATA WRITING WITH MAGNETIC DISC DEVICE, METHOD OF SETTING OFF TRACK MARGIN, MAGNETIC DISC DEVICE AND OFF TRACK MARGIN SETTING DEVICE
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机译：用磁碟装置进行数据写入的方法，设定磁迹的方法，磁碟装置及磁迹的设定装置
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摘要
A data writing method using a magnetic disc device, an off track margin setting method, a magnetic disc device and an off track margin setting device are provided to improve quality of signal and performance of the device by using a second threshold value as well as a first threshold value. A data writing method using a magnetic disc device includes the steps of: classifying data on a disk into user data and servo data(servo signal)(S101); obtaining position data including the serial number of the current track and deviation of the track from the track center by modulating the servo signal(S102); determining whether the deviation is more than a first threshold value(write off track margin) in the previous write direction(S103); determinig whether the deviation is more than a second threshold value(signal quality off track margin) in the current write direction if the deviation is equal to or less than the first threshold value(S104); and writing the user data on the disk if the deviation is equal to or less than the second threshold value(S107).
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