Tracking control on longitudinal azimuth tracks using an auxiliary read head
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United States of America Patent
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Sep 19, 1995
Grant Date -
N/A
app pub date -
Jun 6, 1991
filing date -
Aug 28, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To position a magnetic head of a magnetic coding storage device relative to different tracks of a recording medium, a different and previously recorded track is used as the reference track in each case. The magnetic head contains an auxiliary read head which, with respect to the write head, is disposed at a predetermined distance at right angles to the direction of movement of the recording medium and follows the reference track during the movement of the recording medium. A control circuit in a control unit ensures that the auxiliary read head follows this track as accurately as possible. The reference track is a track whose changes in magnetization are recorded with different azimuth angles as instantaneously recorded adjacent tracks.
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