Device control apparatus and device control method

A first displaying device including a device control apparatus which communicates with a second displaying device through a network by using a command defined in a communication protocol for the network, the first displaying device comprising:

• an acquisition module configured to obtain, from the second displaying device, information related to a first terminal, wherein the second displaying device has the first terminal configured to connect to a game device, a second terminal configured to connect to the network and other terminals, and the first terminal is not connected to the network;
• a display controller configured to display the information, at the first display device, obtained by the acquisition module, the information indicating whether the first terminal is being connected to the game device or not;
• and
• a game time controller configured to measure a time for which the first terminal is being connected to the game device, based on the information obtained by the acquisition module, and to prompt the second displaying device to exclude the connection between the first terminal and the game device, when the measured time reaches a predetermined time set in advance.