Abstract: A method for video communication comprises initiating video communication on a channel with a first electronic device, communicating first content on the channel with the first electronic device, selecting second content from a source external to the video communication, switching video communication using the second content, and transmitting the second content on the channel to the first electronic device instead of the first content.

Abstract: Disclosed are a display apparatus, a client, an image display system including the same, and an image display method. The display apparatus includes a communication unit which communicates with at least one client; and a controller which receives server software for displaying a sharing image and at least one personal image from an exterior server, and executes the server software so that the sharing image is displayed on one of the display unit and the at least one client and the at least one personal image is displayed on the other of the display unit and the at least one client.

Abstract: A method for video communication comprises initiating video communication on a channel with a first electronic device, communicating first content on the channel with the first electronic device, selecting second content from a source external to the video communication, switching video communication using the second content, and transmitting the second content on the channel to the first electronic device instead of the first content.

Abstract: A system and method of maintaining login state information is disclosed. In one embodiment a system comprises a memory configured to store login state information, a camera configured to capture an image, and a processor configured to determine, based at least in part on the image data, a location of a central object associated with the user, to determine, based at least in part on the image data, a location of a satellite object associated with the central object, to determine, based at least in part on the location of the central object and the location of the satellite objection, an angle, and to modify, based at least in part on the angle, the login state information to indicate that the user has logged in.

Abstract: A display apparatus includes a display unit; a communication unit which communicates with a terminal which displays a personal image provided to the terminal, the terminal being one of a plurality of terminals; and a controller controls the display unit to display a sharing image shared among users of the plurality of terminals on the display unit and changes the sharing image displayed on the display unit in accordance with an input received from the terminal. Accordingly, there is provided a display apparatus which provides a video interface including a sharing image and a personal image, a terminal and an image display method.

Abstract: Disclosed are a display apparatus, a client, an image display system including the same, and an image display method. The display apparatus includes a communication unit which communicates with at least one client; and a controller which receives server software for displaying a sharing image and at least one personal image from an exterior server, and executes the server software so that the sharing image is displayed on one of the display unit and the at least one client and the at least one personal image is displayed on the other of the display unit and the at least one client.

Abstract: A system and method of maintaining login state information is disclosed. In one embodiment a system comprises a memory configured to store login state information, a camera configured to capture an image, and a processor configured to determine, based at least in part on the image data, a location of a central object associated with the user, to determine, based at least in part on the image data, a location of a satellite object associated with the central object, to determine, based at least in part on the location of the central object and the location of the satellite objection, an angle, and to modify, based at least in part on the angle, the login state information to indicate that the user has logged in.