Patent ID: 7958277
Filing Date: 2011-06-07
Classification: H04N

Abstract:
1. A video player transmitting a first video signal to a display device through a first connection group, comprising: at least one first output terminal for outputting the first video signal; at least one second output terminal for outputting the first video signal; a first resistor coupled between the first output terminal and a first voltage; a second resistor coupled between the second output terminal and the first voltage, wherein an equivalent resistor of the display device and the first resistor are connected to act as a first voltage divider comprising a first point and the equivalent resistor of the display device and the second resistor are connected to act as a second voltage divider comprising a second point; and a controller determining whether the first output terminal is coupled to the display device through the first connection group and determining whether the second output terminal is coupled to the display device through the first connection group, wherein the controller only provides the first video signal to the first output terminal when the first output terminal is coupled to the display device through the first connection group and the controller only provides the first video signal to the second output terminal when the second output terminal is coupled to the display device through the first connection group; wherein the controller further comprises determining whether the first output terminal is coupled to the display device through the first connection group according to voltage of the first point and whether the second output terminal is coupled to the display device through the first connection group according to voltage of the second point.