Patent ID: 9304544
Filing Date: 2016-04-05
CPC Classification: G06F,G09G

Claim Text:
1. A system comprising an external device and an information processing device removably attached to the external device, the system comprising: first and second display connection terminals in the external device; a docking connector in the external device, the docking connector being electrically connected to a port of a display control circuit in the information processing device; a switching circuit in the external device, the switching circuit being configured to switch an external display, which is to be connected to the port of the display control circuit, between a first external display connectable to the first display connection terminal and a second external display connectable to the second display connection terminal by selecting one of the first display connection terminal and the second display connection terminal; a first controller in the external device, the first controller being configured to detect a state of a first detection signal representing whether or not the first external display is connected to the first display connection terminal and a state of a second detection signal representing whether or not the second external display is connected to the second display connection terminal, and to transmit the detected states of the first and second detection signals to the information processing device; and a second controller in the information processing device, the second controller being configured to determine an external display to be connected to the port of the display control circuit based on the detected states of the first and second detection signals and a preset display priority, and to transmit a switching instruction representing the determined external display to the first controller, wherein the first controller controls the switching circuit to connect the determined external display to the port of the display control circuit.