VERFAHREN ZUR ABTASTUNG EINER SCHRAEGSPURAUFZEICHNUNG.

摘要

The method involves the tape being looped across the surface of a rotating head drum on a helical path and the tracking accuracy is dependent upon the angle and tape speed. Accurate tracking of the tape for a range of conditions is obtd. by monitoring the tape speed using a fixed head responding to pilot track informats. Tracking control is provided by moving the head in the axial direction at a rate determined by the speed of the tape.