Automatic tracking apparatus for magnetic disk playback head

Details Automatic tracking apparatus for magnetic disk playback head Automatic tracking apparatus for magnetic disk playback head

1989-11-27

1992-03-17

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 2110

Patent

active

050973657

ABSTRACT:
Automatic tracking apparatus includes a playback head, a driver for driving the playback head, and a controller for controlling the driver. The playback head is arranged to play back the information recorded on an arbitrary track on a disk-shaped magnetic recording medium. The driver is arranged to cause the playback head to move on the disk-shaped magnetic recording medium approximately in the radial direction. The controller causes the driver to move the head from an arbitrary track to the desired track step-by-step, sampling the output from the playback head within a predetermined range. Thus, the playback head is located at a position corresponding to the maximum level from among the sampled outputs.

REFERENCES:
patent: 4445153 (1984-04-01), Fujimoto et al.

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