Track-curvature detection using clock phase shift in azimuth rec

Details Track-curvature detection using clock phase shift in azimuth rec Track-curvature detection using clock phase shift in azimuth rec

1996-10-31

1998-05-26

Edun, Muhammad N.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 50, 360 51, G11B 2102

Patent

active

057575754

ABSTRACT:
A servomechanism for controlling the position of a magnetic-tape playback head (16) with respect to a track (24) of digital data on a magnetic tape (22) positions the head by reference to an error signal that error-signal-generation circuitry (FIG. 10). generates. Sample-clock signals obtained from simultaneously read azimuth-recorded data tracks clock respective frequency dividers (52 and 54), and a phase detector 56 generates the error signal by comparing the frequency dividers' outputs.

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