首页>
外国专利>
Method and system for converting VGA signals to television signals including horizontally averaging and thinning scanning lines before vertically averaging the scanning lines
Method and system for converting VGA signals to television signals including horizontally averaging and thinning scanning lines before vertically averaging the scanning lines
展开▼
机译:将VGA信号转换为电视信号的方法和系统,包括在垂直平均扫描线之前将其水平平均并细化扫描线
展开▼
页面导航
摘要
著录项
相似文献
摘要
A video system conversion method and apparatus for converting RGB signals of a VGA system to signals for a television system such as the NTSC or PAL system and requiring reduced memory capacity. RGB signals are converted to intensity and first and second chrominance signals in scanning lines that are averaged horizontal and vertical directions. The horizontal components of the input RGB video signals are reduced in number and multiplexed, reducing the maximum capacity of a field memory. The respective intensity signal and the chrominance signals are averaged in the horizontal direction. The respective signals are thinned, i.e., reducing in number, and then averaged in the vertical direction. The circuit may include a multiplexer for multiplexing the chrominance signals after they are thinned. The circuit may include a multiplexer for multiplexing the intensity signal, and the first and second chrominance signals after the respective signals are thinned.
展开▼