Head positioning transducer for helical scan video reproducer

Details Head positioning transducer for helical scan video reproducer Head positioning transducer for helical scan video reproducer

G - Physics

11

B

352/23.3, 352/30

G11B 5/52 (2006.01) G11B 5/588 (2006.01) G11B 21/10 (2006.01)

Patent

CA 1154866

138,361 CAN/WBB Abstract A head positioning transducer is disclosed as shown in Fig. 2 for use with a rotating drum assembly 10 for scanning a magnetic tape alony a plurality of adjacent helically positioned record tracks, wherein the transducer includes a permanent magnet field assembly 22 and a drive coil 20 positioned adjacent thereto mounted on a cantilevered beam 16, at one end of which a playback head 12 is mounted, such that a drive current supplied to the coil produces a field which interacts with the field of the magnet, causing a force on the coil and beam, resulting in controlled movement of the head transverse to the record tracks.

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