ADAPTIBLE ZONE LAYOUT REALIZATION METHOD OF HARD DISK DRIVE

摘要

1. TECHNICAL FIELD OF THE INVENTION;The present invention relates to a method for implementing an adaptive zone layout of a hard disk drive employing a PRML method.;2. The technical problem to be solved by the invention;The present invention provides a method for implementing a zone layout that can optimize a pulse width of a read signal in a hard disk drive employing a PRML method.;3. Summary of Solution to Invention;A method for implementing a zone layout of a hard disk drive employing a PRML method, comprising: calculating a pulse width by reading an independent pulse recorded on a disk, which is a recording medium, and comparing the calculated pulse width with a channel density according to the PRML method. And calculating the channel bit period by calculating the ratio, and selecting the optimized zone data rate in the zone table and writing the result in the memory.;4. Important use of the invention: It can be used for lead channel of hard disk drive adopting PRML method.