Pioneer Electronic Corporation

Casio Computer Co., Ltd.

Pioneer Corporation

Hiroyuki Watanabe

Yuji Ikedo

Yoshimitsu Fukushima

Atsushi Yamane

Masakuni Iwanaga

Hitoshi Nagata

A disk player is provided which is capable of being automatically loaded with and playing one of a plurality of types of disks when the disk is inserted in the disk player. A driver moves the receiving module from an opened position to a closed position in response to either the detection signal from disk detector or the command signal from a switch.

Auto-loading disk player

A disc holder is annularly provided for holding a plurality of discs, and a reproducing device is provided in a central portion of the disc holder for reproducing a desired disc. A carrying device is provided for carrying the desired disc between the disc holder and the reproducing device. The carrying device has a groove for slidably engaging with a peripheral portion of the desired disc, and a pair of inclined surfaces for separating adjacent discs on both sides of the desired disc from the desired disc.

System for reproducing a recorded disc

An electromagnetic actuator has a large driving force and a good response speed and an image pickup apparatus obtains an image of a high resolution even by using a solid state image pickup device with a small number of pixels. The actuator comprises permanent magnetic field generating units for generating permanent magnetic fields and a current path forming unit which is relatively movable for the permanent magnetic field generating units and forms a current path which crosses the permanent magnetic fields by a current according to an input control signal. The permanent magnetic field generating units of the actuator generate two permanent magnetic fields in the directions which cross each other by, for example, two pairs of magnets. The current path forming unit has two coils each crossing the permanent magnetic field and winding shafts of those coils exist almost on the same line. A driven member is driven by a relative movement between the magnets and the coils by two electromagnetic forces which are generated between the magnets and the coils. In the image pickup apparatus, first and second electromagnetic actuators are driven and controlled by a control unit, a first parallel flat plate is inclined every four exposures, an image of an object is deviated in four directions, a second parallel flat plate is inclined in four directions every exposure, the image of the object is deviated in four directions, and the image data obtained by the exposure of four times is synthesized, thereby forming synthetic image data of one picture plane.

Electromagnetic actuator and image pickup apparatus

Growing community of inventors

Tokorozawa, Japan

Hiroyuki Watanabe