发明授权
- 专利标题： Method and apparatus for generating a video overlay
- 专利标题（中）： 用于生成视频叠加的方法和装置
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申请号： US09678362申请日： 2000-10-03
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公开(公告)号： US06788309B1公开(公告)日： 2004-09-07
- 发明人: Philip Swan , John Haberfellner
- 申请人： Philip Swan , John Haberfellner
- 主分类号： G09G500
- IPC分类号： G09G500
摘要：
A method and apparatus utilizes a display engine scaler to access source image that is located in memory, such as a frame buffer and also controls a second scaler, such as a front end scaler of a 2D/3D engine, which also accesses the frame buffer and is capable of scaling from a frame buffer memory and storing the scaled image back to the frame buffer.
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