Integrated circuit for processing digital signals in video camera havingelectronic zooming function

Abstract From the Canadian patent

An output from a solid state image sensing device spatially modulated by a color filter is A/D converted and stored in a field memory. Digital signals read from the field memory during electronic zooming are successively delayed by 1H period by means of first second and third, 1H delay elements connected in series. The output from the field memory and outputs from the first second and, third 1H delay elements are separated into luminance components and line sequential color components by first to fourth Y/C separating circuits, respectively. A first set of three primary color signals are calculated based on outputs from the first, second and third Y/C separating circuits, and a second set …