| 摘要 |
A method of detecting a position on a disk is applied to a disk which is time-divisionally recorded with a data region and a servo region based on a signal read from the disk, where the servo region is recorded with a servo pattern having a length of consecutive "0"s longer than a length of consecutive "0"s existing in the data region, and the servo pattern has three or more zones with consecutive "0"s. The method includes the steps of (a) digitizing the signal read from the disk and slicing at a predetermined level so as to convert the signal into "0" or "1", and (b) detecting the servo pattern when two zones with consecutive "0"s are detected from information converted by the step (a).
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