Sanyo Electric Co., Ltd.

Kanichi Koyama

Yukio Mori

Yoichi Tsuchiya

Seiji Kajiyama

Seiichiro Takahashi

Mitsuhiko Maeda

Masaaki Shidochi

An image-sensing apparatus has: an optical zoom control portion varying the size of the subject image on the source images by optical zooming; a particular subject detection portion detecting the position and size of a particular subject on the source images based on the image data of the source images; a narrow-angle image extraction portion setting a narrow-angle image including the particular subject to set the position and size of the narrow-angle image on image; a wide-angle image extraction portion extracting a wide-angle image that includes the narrow-angle image; a resolution enhancement processing portion cutting out a plurality of narrow-angle images according to a setting in the narrow-angle image extraction portion, to generate a narrow-angle high-resolution image having a number of pixels greater than the number of pixels of the narrow-angle image. The optical zoom control portion controls the factor of the optical zooming such that the ratio of the reference number of pixels to the number of pixels of the narrow-angle image approaches the factor of enlargement by the resolution enhancement processing portion.

Image-sensing apparatus

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

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Osaka, Japan

Kanichi Koyama