G11B21/04 - CPC Classification

Head arrangements not specific to the method of recording or reproducing; Driving or moving of heads Automatic feed mechanism producing a transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan

• G11B21/043 » {for stationary discs} 1
• G11B21/046 » {details of the feed mechanism} 2
• G11B21/06 » the record carrier having means to ensure traverse movement of the head, 0