Magnetic recording medium having a servo pattern of the intermit

Details Magnetic recording medium having a servo pattern of the intermit Magnetic recording medium having a servo pattern of the intermit

1994-05-20

1995-05-23

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

360134, 360135, 360136, 360 7712, 360 7708, G11B 574, G11B 5584, G11B 5596

Patent

active

054186706

ABSTRACT:
A magnetic recording medium has recorded thereon a series of discrete time-limited servo signal bursts. To suppress residual fields emanating from each servo signal burst, at least one half-cycle of a compensating signal is recorded immediately prior to and immediately after each signal burst of a polarity opposite the polarity of the immediately adjacent half-cycle of the servo signal burst. Furthermore, each half-cycle of each compensating signal has a magnetic moment that is weaker than the magnetic moment of one half-cycle of the immediately adjacent servo signal burst.

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