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Method for writing spiral reference servo signal in hard disk drive and method for compensating for temperature
Method for writing spiral reference servo signal in hard disk drive and method for compensating for temperature
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机译:在硬盘驱动器中写入螺旋参考伺服信号的方法和温度补偿方法
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摘要
A method for writing a spiral reference servo signal suitable for a self-servo writing method in a hard disk drive includes writing a first reference pattern in an end direction of a spiral reference servo signal writing concentrically on the disk; writing a spiral reference servo signal on a current spiral track from a reference writing start position of the current spiral track; detecting a moving angle of a head to the first reference pattern, which corresponds to a distance from the reference writing start position to a reference writing end position of the spiral reference servo signal in the case that thermal expansion of the disk does not exist; compensating for a driving speed of the head with reference to the detected moving angle of the head; and writing the spiral reference servo signal on a next spiral track at a compensated driving speed of the head.
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