Magneto-optical tape recording and reading-out method involving

Details Magneto-optical tape recording and reading-out method involving Magneto-optical tape recording and reading-out method involving

1994-12-05

1996-07-09

Dinh, Tan

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369 14, 369110, G11B 1100

Patent

active

055351808

ABSTRACT:
A magneto-optical recording and readout method involves making a tape-type magneto-optical recording medium run in front of at least a single pole of a permanent magnet or an electromagnet at a position forwards of an optical head relative to the running direction of the recording medium, without contacting the magnet so as to cross at a substantial right angle to magnetic force lines, thereby initializing the recording medium or erasing information therein. The tape-type magneto-optical recording medium has at least a magneto-optical recording layer on one side of a base film having a thickness of not more than 50 .mu.m. Recording of information is effected by irradiating beams to the recording medium under application of an external magnetic field of not more than 24 kA/m.

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