A Compatible High-Definition Television System

A Compatible High-Definition Television System By T. S. RZESZEWSKI* (Manuscript received March 11, 1983) A compatible HDTV system with the potential of having significantly better picture quality than the present NTSC color TV system is proposed. It realizes an increase in horizontal and vertical resolution and has considerably less crosstalk between the composite signal components compared to the NTSC signal. The increased resolution will allow a display as large as present home projection televisions with a sharper-looking and more detailed image than is possible with the present NTSC system. Also, the elimination of crosstalk adds to picture quality. A large screen size together with improved image quality should provide the user with a feeling of realism and involvement. This system also allows the use of more detailed graphics and more text per page for new services such as teletext. I. I N T R O D U C T I O N A compatible high-definition television ( H D T V ) system capable of producing an image quality significantly better t h a n N T S C is proposed. Viewing the pictures produced by this system on a large screen should result in an increased sense of realism over the present N T S C television. T h i s new system uses a split-luminance and split-chrominance (SLSC) type of transmission. T h e areas where t h e primary benefits are expected from this H D T V system over the National Television System Committee ( N T S C ) system are: 1. Increased horizontal resolution, 2.