Patent ID: 8832746

Claim:
A network device for processing multiple data from a server, the network device comprising: a network interface configured to receive main video data and additional data indicating at least one icon; a video decoder configured to decode the received main video data; a memory configured to store the at least one icon; an user interface configured to receive a first command signal for requesting the stored at least one icon; and a controller configured to control the network interface, the video decoder, the memory, and the user interface, wherein the controller is further configured to: display the at least one icon, receive site address corresponding to the at least one icon through the network interface based on the additional data to receive supplementary information corresponding to the at least one icon, transmit information related to the at least one icon to a predetermined server when the selected at least one icon is not linked to any server, receive link information from the predetermined server via the network interface, retrieve the supplementary information by using the received link information, and display the received supplementary information.