Multiple coil magnetic head for magnetic optical recording devic

Details Multiple coil magnetic head for magnetic optical recording devic Multiple coil magnetic head for magnetic optical recording devic

1994-12-22

1996-03-19

Epps, Georgia Y.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360114, G11B 1100

Patent

active

055008399

ABSTRACT:
A magneto-optical recording and reproducing apparatus includes a magnetic head for modulating a magnetic field according to a recording signal. There are three separate coils around a single magnetic core the magnetic head. Three coil driving circuits are included, each one associated with a separate coil for switching the direction of magnetic field generated by said separate coils. A selecting circuit is used for starting or stopping the transmission of the recording signal to the coil driving circuits.

REFERENCES:
patent: 5157641 (1992-10-01), Lehureau
patent: 5233577 (1993-08-01), Bakx et al.
patent: 5313444 (1994-05-01), Ishii et al.
patent: 5331477 (1994-07-01), Sugiyama
patent: 5351155 (1994-09-01), Ishii
patent: 5359466 (1994-10-01), Fuji et al.

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