SERVO SIGNAL RECORDING METHOD, AND MAGNETIC DISK UNIT,申请号JP20000013890-传众专利搜索

SERVO SIGNAL RECORDING METHOD, AND MAGNETIC DISK UNIT

申请公布号：JP2001202727(A)

申请号：JP20000013890

申请日期：2000.01.18

申请公布日期：2001.07.27

申请人：

HITACHI LTD

发明人：ANNA HIROSHI;YAMAGUCHI TAKASHI

分类号：G11B20/12;G11B21/10;(IPC1-7):G11B21/10

主分类号：G11B20/12

摘要：PROBLEM TO BE SOLVED: To provide a magnetic disk device which permits relaxation of the permissible head specifications, and improvement of the yield of a head when variance is present in the track width of the head. SOLUTION: A servo signal having a specified pattern for head position detection is recorded in each recording surface, detected by a head using the positional signal and, by performing control based on the detected signal, head yield by variance in track spacing is improved.