Information recording and reproducing apparatus for effecting si

Details Information recording and reproducing apparatus for effecting si Information recording and reproducing apparatus for effecting si

1984-12-26

1988-11-29

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369 14, 369111, 360 86, G11B 1100

Patent

active

047886714

ABSTRACT:
There is disclosed an information recording and reproducing apparatus which is provided with a disk-shaped recording medium having a recording face allowing information recording and reproduction from both sides; a recording head positioned at a side of the recording face to record information thereon; a reproducing head positioned at the other side of the recording face to reproduce information recorded on the recording face; and a rotary drive unit for independently driving at least two of the disk-shaped recording medium, recording head and reproducing head about a same axis and in the circumferential direction of the recording medium.

REFERENCES:
patent: 3636253 (1972-01-01), Notani et al.
patent: 3641278 (1972-02-01), Kinjo et al.
patent: 3924146 (1975-12-01), George
patent: 4387452 (1983-06-01), Bricot et al.
patent: 4561032 (1985-12-01), Matsumoto et al.
NHK Laboratories Note, Ser. No. 285, Feb. 1983, Tokunau et al.

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