With provision for moving the head for the purpose of maintaining alignment

Official title: with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following {(spacing means incorporated in the head structure G11B5/187, G11B5/255, G11B5/3106)}

G11B5/58 (With provision for moving the head for the purpose of maintaining alignment) appears on 10,247 US grants and 5,826 published applications in this corpus.