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Seek control method of hard disk drive, recording medium storing method and hard disk drive adopting method
Seek control method of hard disk drive, recording medium storing method and hard disk drive adopting method
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机译:硬盘驱动器的寻道控制方法,记录介质存储方法和硬盘驱动器采用方法
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摘要
The present invention relates to a hard disk drive performing a seek control method using a multi-sinusoidal wave acceleration profile, where the seek control method is capable of coping with a variation in a voice coil motor driving current due to variances in a peripheral environment. The seek control method of the present invention includes: calculating a seek time scaling (STC) related to variations in a voice coil motor (VCM) driving current due to variation in a peripheral environment; calculating an acceleration distance ratio (ALR) of an acceleration distance to a maximum seek distance without a coast mode according to the STC; calculating position profiles in an acceleration mode, the coast mode and a deceleration mode, respectively, using both the STC and the ALR; and performing a seek operation by generating the VCM driving current according to the position profiles and applying the VCM driving current to a VCM.
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