Electronic device with video in/out switching function

摘要

An electronic device with video in/out switching function using one port when connected with an external electronic apparatus includes a video switch circuit; an LCD; a processing unit, to decode and output video signals to the LCD; and an interface unit. In a video in mode, the video switch circuit connects the processing unit to the external electronic apparatus via the interface unit, thereby video signals from the external electronic apparatus are decoded and then output to the LCD. In a video out mode, the video switch circuit connects a video source to the external electronic via the interface unit, thereby video signals from the video source are output to the external electronic apparatus.