| 摘要 |
A device built in a computer for directly playing multiple external AV sources without powering on the computer is provided. An AV signal from one of these external sources is presented on the computer's image display device (such as LCD) and audio device (such as speakers). The AV signal could also be presented on external video devices (such as TV, projector) and audio devices (such as stereo) via the computer's built-in video and audio output interfaces. When the computer is connected to multiple external AV sources, the AV signals from these sources could be presented sequentially in full screen, or they could be presented simultaneously in a split-screen fashion. The device could be controlled by control buttons located on the computer's casing or by a remote control.
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