公开(公告)号：MY110153A

公开(公告)日：1998-02-28

申请号：MYPI19930502

申请日：1993-03-19

Applicant: IBM

Inventor： SATOSHI YAMAMOTO ,  TETSUO UEDA ,  ISAO YONEDA

IPC: G11B21/08 ,  G11B5/55 ,  G11B19/04 ,  G11B21/10

Abstract: REDUCTION OF NOICE AND POWER CONSUMPTION DURING A SEEK OPERATION ARE ACHIEVED.MPU (8) DETERMINES WHETHER A MOVING SPEED OF A HEAD (1) IS WITHIN A PREDETERMINED RANGE INCLUDING A TARGET SPEED DURING A PERIOD FROM A TIME AT WHICH THE MOVING SPEED OF THE HEAD REACHES THE TARGET SPEED TO A PREDETERMINED TIME AT WHICH A DECELERATION OF THE HEAD IS STARTED. IF THE DETERMINATION IS YES, A CURRENT SUPPLIED TO A VOICE COIL MOTOR (2) IS TURNED OFF BY A MOTOR DRIVER (11). IF THE DETERMINATION IS NO, A CURRENT IS SUPPLIED TO THE VOICE COIL MOTOR (2) BY THE MOTOR DRIVER (11).(FIG 1)