Abstract: An image signal processing apparatus is disclosed. A peaking signal generation section extracts and amplifies high frequency components contained in an input image signal to generate a peaking signal. An operation section allows a target area for which contour correction is to be performed using the peaking signal to be accepted. A control section generates an area gate signal describing position information corresponding to the designated target area. A mask processing section performs a mask process of outputting an image signal to which the peaking signal has been added to the target area designated through the operation section based on the area gate signal supplied from the control section. A scaling processing section converts pixels of the image signal for which the mask process has been performed is converted at a predetermined scaling ratio.

Abstract: A viewfinder configured to display a captured image includes: an edge correction signal generation unit configured to generate a peaking signal corresponding to an edge enhancement correction target hue that is a hue for which edge enhancement correction will be performed from three primary color signals generated from an input video signal; a signal adding unit configured to add the peaking signal generated by the edge correction signal generation unit to each of the three primary color signals generated from the input video signal; and a driving signal generation unit configured to generate a driving signal for a display device from the three primary color signals to each of which the peaking signal has been added by the signal adding unit.

Abstract: An image signal processing apparatus is disclosed. A peaking signal generation section extracts and amplifies high frequency components contained in an input image signal to generate a peaking signal. An operation section allows a target area for which contour correction is to be performed using the peaking signal to be accepted. A control section generates an area gate signal describing position information corresponding to the designated target area. A mask processing section performs a mask process of outputting an image signal to which the peaking signal has been added to the target area designated through the operation section based on the area gate signal supplied from the control section. A scaling processing section converts pixels of the image signal for which the mask process has been performed is converted at a predetermined scaling ratio.

Abstract: A viewfinder configured to display a captured image includes: an edge correction signal generation unit configured to generate a peaking signal corresponding to an edge enhancement correction target hue that is a hue for which edge enhancement correction will be performed from three primary color signals generated from an input video signal; a signal adding unit configured to add the peaking signal generated by the edge correction signal generation unit to each of the three primary color signals generated from the input video signal; and a driving signal generation unit configured to generate a driving signal for a display device from the three primary color signals to each of which the peaking signal has been added by the signal adding unit.

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 fixes the luminance of a blank area and varies only the luminance of an image. The image display apparatus includes an A/D conversion device to convert an input analog image signal into digital image data, a black level setting device for setting the black level of the digital image data by adjusting a lower-limit reference voltage of the A/D conversion device, a blank data generation device to generate blank data to display a blank area around an image display area on the screen, an image data combining device to combine the blank data generated by this blank data generation device and the digital image data output from the A/D conversion device, and a display device to display the output of this image data combining device on the screen.

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 first movable barrel is rotated and moved along an optical path by driving force of a motor. A second movable barrel is attached to the interior of the first movable barrel. The second movable barrel does not rotate, but goes straight along the optical path together with the first movable barrel. Inside the second movable barrel, is rotatably attached a lens turret in which a plurality of lenses are concentrically arranged. The lens turret is intermittently rotated in accordance with a rotation of the first movable barrel to set one of the lenses at the optical path. Each lens is set to the optical path at a position where back focus is taken into consideration, so that a focal length of a taking lens is changed. When the lens turret goes straight together with the second movable barrel without rotating, focusing is performed at the set focal length. A magnification of a viewfinder optical system is changed in association with a rotation of the lens turret.

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.