Patent ID: 8724032
Filing Date: 2014-05-13
Classification: G09G

Abstract:
1. An electronic device with video in/out switching function using one port, when connected with an external electronic apparatus, the electronic device comprising: a video switch circuit; an LCD; a processing unit, to decode and output video signals to the LCD; and an interface unit; wherein, 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 apparatus via the interface unit, thereby video signals from the video source are output to the external electronic apparatus, wherein the video source is a DVD source outputting CY mode signals and CVBS mode signals, the mode switch unit is a three pole double throw switch, with contacts a, b, c, when receiving the logic low, contact a is connected to contact when receiving the logic high, contact a is connected to contact