APPARATUS, SYSTEM, AND METHOD FOR CONTROLLING RECORDING HEAD SUBSTRATE BIAS VOLTAGE

APPARATUS, SYSTEM, AND METHOD FOR CONTROLLING RECORDING HEAD SUBSTRATE BIAS VOLTAGE

An apparatus, system, and method are disclosed for dynamically controlling a recording head substrate bias voltage. The apparatus includes a midpoint module and a substrate module. The midpoint module calculates a midpoint voltage of a plurality of data read elements and servo read elements containe...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TRETTER LARRY LEEROY, BISKEBORN ROBERT GLENN, CZARNECKI STANLEY W, IBEN ICKO E.T
Format: Patent
Sprache:eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:An apparatus, system, and method are disclosed for dynamically controlling a recording head substrate bias voltage. The apparatus includes a midpoint module and a substrate module. The midpoint module calculates a midpoint voltage of a plurality of data read elements and servo read elements contained in the head. The substrate module calculates a substrate bias voltage. The apparatus, system, and method dynamically control the substrate bias voltage post-assembly, minimizing certain head degradations and extending the life of associated head readers.