Tracking control arrangement for information signal reproducing

Details Tracking control arrangement for information signal reproducing Tracking control arrangement for information signal reproducing

1991-01-22

1992-07-14

McElheny, Jr., Donald

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 4428, G11B 700

Patent

active

051309629

ABSTRACT:
In an information signal reproducing apparatus having a reproducing head for reproducing information signals from recording tracks formed on a record bearing medium and a shifting device for shifting the reproducing head athwart the tracks, the shifting device is arranged to be operatable in a first operating mode in which the reproducing head is shifted to a predetermined extent for every first predetermined period and also in a second operating mode in which the reproducing head is shifted to the predetermined extent for every second predetermined period which is longer than the first period. The shifting device is controlled not on the basis of the output of the reproducing head in the first mode but on the basis of the output of the reproducing head in the second mode.

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Porter et al., "Head-to-Track Synchronizing Mechanism for Magnetic Disks", IBM Tech. Disc. Bul., vol. 19, No. 4, Sep. 1976, pp. 1393-1395.

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