INFORMATION RECORDING/REPRODUCING APPARATUS FOR...

Details INFORMATION RECORDING/REPRODUCING APPARATUS FOR... INFORMATION RECORDING/REPRODUCING APPARATUS FOR...

2005-12-27

2005-12-27

Neyzari, Ali (Department: 2655)

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

C369S030150, C369S300000, C369S044260

Reexamination Certificate

active

06980489

ABSTRACT:
A magnetic tape has a guide track for optically obtaining a tracking signal and an independent information track for storing information. The magnetic tape is partitioned into different kinds of zones. The guide tracks are provided with grooves or pits serving as tracking marks, and the tracking marks are selectively located in the zones depending on the kind of zone. Thus, the track spacing of the guide tracks in each zone can be increased, so that a tracking control can be performed for a high density recording medium without reducing the spot size of the light.

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