Abstract: A stator magnet according to a first embodiment of the present invention forms a voice coil motor with a closed coil. The closed coil is supported by an actuator arm in a rotatable manner and at a predetermined rotation angle. The closed coil has first and second side edges that extend along different lines in radial directions whose center is a center of rotation of the actuator arm. It also has an outer edge that connects edges of outer sides of the first and second side edges with viewed from the radial direction, and extends along an arc whose center is the center of rotation. A first magnetic pole region is located within a moving area of the first side edge to act on the first side edge. A second magnetic pole region is located within a moving area of the second side edge to act on the second side edge. The polarity of the second magnetic pole region is opposite to the polarity of the first magnetic pole region.

Abstract: In digitally recording a color video signal for a SECAM system, a horizontal blanking interval including a horizontal synchronizing signal and a non-modulated carrier is not recorded as in the case of a color video signal for a NTSC or PAL system. In a reproducing mode, the non-modulated carrier is restored from the reproduced data and then is inserted in the horizontal blanking interval with the horizontal synchronizing signal, thereby reducing the amount of information to be recorded.