发明名称 |
System to multiplex and blend graphics OSD and motion video pictures for digital television |
摘要 |
<p>A system is provided to multiplex graphic and Motion video pictures for digital TV set-top box. The motion picture is generated by an MPEG Video decoder and the graphic windows are generated by an OSD Co-Processor. Each graphic window is characterized by a set of attributes that define the display mode, position on the screen, priority and blend factor. When a window is blended, the motion video and OSD color components are added together with a proportion of each defined by the window attributes. Decimated motion video picture can be also displayed within an OSD window; the OSD Co-processor generates an empty window that is filled by the video decoder with the decimated motion video. <IMAGE> <IMAGE></p> |
申请公布号 |
EP0840505(A2) |
申请公布日期 |
1998.05.06 |
申请号 |
EP19970119124 |
申请日期 |
1997.11.03 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
CHAUVEL, GERARD;CHAE, BRIAN |
分类号 |
G09G5/14;G09G5/36;G09G5/395;H04N5/00;H04N5/445;H04N5/45;H04N7/26;H04N7/50;H04N9/74;(IPC1-7):H04N5/45 |
主分类号 |
G09G5/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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