Combined stepper motor and voice coil head positioning apparatus
 A mechanism for accurately following the center of a track includes a voice coil, or a voice coil and stepper motor in combination. The voice coil and stepper motor combination operate to variably position a recording head transversely with respect to the width of the recording tape. The mechanism enables head positioning with very close tolerances due to the ability of the voice coil to finely position the head very accurately on the center of a track. 
Minnesota Mining and Manufacturing Company
G
G11B
inventional
Robert J. Theodore A. Noel L. Durkee B. Robert W. James S. Hung T.
Youngquist Schwarz Allen Richards Tapani Anderson Tran