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    • 1. 发明授权
    • Programmable digital video processing system
    • 可编程数字视频处理系统
    • US5227863A
    • 1993-07-13
    • US564148
    • 1990-08-07
    • Brett C. BilbreyJohn M. BrooksCraig FieldsJeffrey E. FrederiksenThomas Jakobs
    • Brett C. BilbreyJohn M. BrooksCraig FieldsJeffrey E. FrederiksenThomas Jakobs
    • H04N5/265G06T1/20G06T3/00G06T15/00H04N5/262
    • H04N5/262G06T15/005
    • Programmable apparatus for digital processing of video signals from multiple sources converted to digital format to provide real-time multiple simultaneous special video effects and suitable for direct interface to a conventional microcomputer bus such as an Apple Macintosh II NuBus. The apparatus includes a matrix of multipliers to do real-time video processing permitting special effects such as fading between at least two video image sources, as well as a priority resolver to control display on a pixel by pixel basis of more than ten sources based upon dynamically programmable priority. In addition, a programmable multiple range thresholder, a hardware window generator capable of generating multiple simultaneous windows, a color look up table and optional image capture capabilities are provided. The apparatus also provides for a light pen input, genlocking and a range of special video effects including zooming, mosaicing, panning and blending.
    • 用于数字处理来自多个转换成数字格式的源的视频信号的可编程设备,以提供实时多个同时的特殊视频效果,并且适用于与诸如Apple Macintosh II NuBus之类的常规微计算机总线的直接接口。 该装置包括乘法器的矩阵,以进行允许诸如至少两个视频图像源之间的衰落的特殊效果的实时视频处理以及优先级分解器,以基于多个来源基于逐个像素的基础来控制显示 动态可编程优先。 另外,提供了可编程多范围阈值器,能够生成多个同时窗口的硬件窗口生成器,颜色查找表和可选的图像捕获能力。 该设备还提供光笔输入,同步锁定和一系列特殊视频效果,包括缩放,镶嵌,平移和混合。