发明名称 |
Method and apparatus for rendering video |
摘要 |
Multiple Video Graphic Adapters (VGAs) are used to render video data to a common port. In one embodiment, each VGA will render an entire frame of video and provide it to the output port through a switch. The next adjacent frame will be calculated by a separate VGA and provided to an output port through the switch. A voltage adjustment is made to a digital-to-analog converter (DAC) of at least one of the VGAs in order to correlate the video-out voltages being provided by the VGAs. This correlation assures that the color being viewed on the screen is uniform regardless of which VGA is providing the signal. A dummy switch receives the video-output from each of the VGAs. When a VGA is not providing information to the output port, the dummy switch can be selected to provide the video-output of the selected VGA a resistance path which matches the resistance at the video port. This allows the video graphics controller to maintain a constant thermal state. |
申请公布号 |
US8310489(B2) |
申请公布日期 |
2012.11.13 |
申请号 |
US20090635419 |
申请日期 |
2009.12.10 |
申请人 |
CALLWAY EDWARD G.;ATI TECHNOLOGIES ULC |
发明人 |
CALLWAY EDWARD G. |
分类号 |
G06F15/16;G06F3/14;G09G5/02;G09G5/06;G09G5/36;G09G5/399 |
主分类号 |
G06F15/16 |
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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