Method of detecting positioning of a magnetic head, and a magnet

Details Method of detecting positioning of a magnetic head, and a magnet Method of detecting positioning of a magnetic head, and a magnet

1996-04-22

1998-03-10

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7814, G11B 5596

Patent

active

057268231

ABSTRACT:
A method and apparatus for simply detecting the magnetic head position over a wide range. A magnetic disk has recorded thereon a plurality of data tracks 54 formed along the radial direction (arrow B), and burst pattern rows A, B, C, and D. Signal recording areas 50a and 50b of pattern rows A and B are arranged in a staggered manner, their end sides along the radial direction corresponding to respective widthwise central portions of tracks 54. Signal recording areas 50c and 50d of pattern rows C and D are also arranged in a staggered manner, their end sides along the radial direction corresponding to respective boundaries of tracks 54. Based on signals A, B, C, and D obtained by moving the magnetic head and reading each pattern row, data SA representing signal A/(A+B) and data SC representing signal C/(C+D) are generated. By detecting the offset of data SC for every predetermined period of time, and using each portion, which varies linearly with respect to the movement of magnetic head, of data SA, data SA+SC-offset, and data SA-SC+offset, the position of the magnetic head is detected.

REFERENCES:
patent: 4669004 (1987-05-01), Moon et al.
patent: 4912576 (1990-03-01), Janz
patent: 5003412 (1991-03-01), Bizjak et al.
patent: 5268803 (1993-12-01), Sugita et al.
patent: 5321557 (1994-06-01), Shimotashiro et al.
patent: 5335123 (1994-08-01), Shimizu et al.
patent: 5523902 (1996-06-01), Pederson

Affiliated with

Also associated with

Rating

Method of detecting positioning of a magnetic head, and a magnet does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of detecting positioning of a magnetic head, and a magnet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of detecting positioning of a magnetic head, and a magnet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-144194