Servo writer, signal output control method and manufacturing...

Details Servo writer, signal output control method and manufacturing... Servo writer, signal output control method and manufacturing...

2007-03-22

2009-10-20

Olson, Jason C (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S046000, C360S077120

Reexamination Certificate

active

07605995

ABSTRACT:
A recording current to be supplied to a magnetic head is regulated by a signal output control unit. A peak value (either of positive-going peak value and a negative-going peak value) is detected in each pulse of a digital signal resulting from analog-to-digital conversion of a servo signal recorded on a servo band of a magnetic tape. The peak value is transmitted as an input value which is allowed to follow a change in the peak value as long as a frequency calculated based upon times of detection of respective peak values is below a predetermined frequency. An output value of the recording current is determined based upon the transmitted input value.

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