Sanyo Electric Co., Ltd.

Mitsuhiko Maeda

Yoichi Tsuchiya

Seiji Kajiyama

Seiichiro Takahashi

Kanichi Koyama

Masaaki Shidochi

A magneto-optical disk apparatus includes a magnetic head in a position opposed to an objective lens included in an optical head with a magneto-optical record medium therebetween. The magneto-optical disk apparatus includes a magnet for cancelling a first magnetic field emitted toward the magnetic head from a magnet for focus servo-control or tracking servo-control of the objective lens. The magnet emits a second magnetic field in a direction toward the magnetic head. The second magnetic field is opposite in direction to the first magnetic field, and has the same intensity as the first magnetic field. Consequently, the signal can be accurately reproduced from the magneto-optical record medium while removing a magnetic influence from the magnet included in the optical head.

MAGNETO-OPTICAL DISK APPARATUS CAPABLE OF ACCURATE REPRODUCTION OF SIGNAL BY REMOVING MAGNETIC INFLUENCE BY MAGNET INCLUDED IN OPTICAL HEAD AND METHOD OF DETECTING INTENSITY OF MAGNETIC FIELD APPLIED BY MAGNET

A sound-vibration generating device includes as arranged in a main body case a sound generating unit and a vibration generating unit. The main body case has attached to a bottom portion thereof a bottom plate to be soldered to a land on a printed wiring board, and is provided at an end portion thereof with a pair of connecting terminals for receiving a drive signal for driving the sound generating unit and/or the vibration generating unit. The connecting terminals are provided at lower ends thereof with joint portions to be soldered to respective lands on the printed wiring board. The rear surface of the bottom plate and the rear faces of the joint portions of the terminals are positioned on the same plane or approximately the same plane to thereby render the sound-vibration generating device mountable on the surface of the board.

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Takatsuki, Japan

Mitsuhiko Maeda