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公开(公告)号:US5808659A
公开(公告)日:1998-09-15
申请号:US799059
申请日:1997-02-10
CPC分类号: H04N5/45 , H04N21/4316 , H04N21/4622
摘要: An apparatus and method for centralized processing of PIP images from a plurality of digital video sources includes a centralized processing device having a plurality of service drivers for outputting digital video data representing full screen images, and samplers for selectively sampling the data from the service drivers to form reduced screen images. A PIP bus channels the sampled data for access by various users. The sample data is selectively stored in buffers and is output to a display device when triggered by input/output triggers. The triggered output data representing reduced screen images is then combined by a video switch to form picture-in-picture images.
摘要翻译: 用于从多个数字视频源集中处理PIP图像的装置和方法包括:具有多个服务驱动器的集中处理装置,用于输出表示全屏图像的数字视频数据;以及采样器,用于选择性地从服务驱动器对数据进行采样 形成缩小的屏幕图像。 PIP总线通道采样数据供各种用户访问。 样本数据选择性地存储在缓冲器中,并且当由输入/输出触发触发时被输出到显示装置。 表示减少的屏幕图像的触发的输出数据然后由视频开关组合以形成画中画图像。