Abstract: A video signal processing circuit, which performs contour adjustment by means of digital signal processing, is applicable to a viewfinder apparatus for a television camera and an image monitor apparatus, which can be operated both in an NTSC/PAL system and an HDTV system.

Abstract: An image display apparatus has a main display area in which a plurality of pixels are arranged horizontally and vertically in an array condition, and at least one sub display area in which a plurality of pixels are arranged horizontally and vertically in an array condition, provided separately from and outside the main display area. In the image display apparatus, two types of lines are arranged in a matrix manner horizontally and vertically against the main display area and the sub display area to drive the plurality of pixels, and driving units for applying driving signals to the lines arranged in the matrix manner are also provided.

Abstract: A video display apparatus comprises a video-signal processing circuit for processing an input video signal, a PLL circuit for generating a clock signal, a discrimination circuit for identifying the format of the input video signal and a specification circuit for specifying the format of video information to be displayed. In addition, the video display apparatus also includes a diver-control-signal generation circuit, a driver-control-signal switching circuit and a PLL-signal control circuit. The diver-control-signal generation circuit is used for generating control signals for controlling a gate driver and a source driver which are used for driving a display panel in accordance with the identified format of video information to be displayed.

Abstract: An inexpensive, miniaturized and thin image reading apparatus reads various types of images, such as fingerprints. The apparatus includes a transparent substrate. A light-emitting unit emits light to pass through the transparent substrate and to be applied to a subject pressed against the substrate. A plurality of light-receiving units are disposed on the substrate in the vertical and horizontal directions with intervals therebetween and receive the light which is emitted from the light-emitting unit and is reflected from the subject. A reading device reads an image of the subject in accordance with the amount of light received by the light-receiving units.

Abstract: A support construction for an optical pick-up, such as used in a compact disc player, has a first leaf spring with an elongated opening defined between opposite sides in the longitudinal direction and an optical lens support centrally in the opening by a pair of support members extending from the opposite sides to allow the lens to be moved by a voice coil toward or away from the compact disc without sidewards deviation. The first leaf spring is supported on an intermediate base, and the intermediate base is supported by a pair of second leaf springs of similar construction, in order to allow the intermediate base to be finely adjusted by another coil in a plane parallel to the disc. The pair of second leaf springs are mounted to a slider which is driven radially of the compact disc.