公开(公告)号：SG48490A1

公开(公告)日：1998-04-17

申请号：SG1996011128

申请日：1996-11-09

Applicant: IBM

Inventor： SMITH GORDAN J ,  OTTESEN HAL HJALMAR

IPC: G11B5/39 ,  G11B5/00 ,  G11B5/012 ,  G11B5/596 ,  G11B5/60 ,  G11B21/02 ,  G11B21/10 ,  G11B5/03 ,  G11B5/516 ,  G11B5/127 ,  G11B13/00 ,  G11B5/09

Abstract: A dual element (80a,80b) magnetoresistive (MR) head (80) is positioned relative to a storage medium (24) in a storage device (20). The MR head (80) has first and second MR elements (80a,80b). The storage medium (24) is mounted in the storage device (20) to allow relative movement between the MR head (80) and the storage medium (24). The storage medium (24) includes servo information (106,108) provided to induce first and second thermal responses (211,213) in the MR elements (80a,80b). A controller (250) is coupled to the MR head (80) and controls the relative movement between the MR head (80) and the storage medium (24) using the first and second thermal responses (211,213) in the MR elements (80a,80b).