Patent ID: 8712434

Claim:
A method for a broadcast receiver to provide location information of a user terminal connected to the broadcast receiver through a communication network, the method comprising: registering at least one user terminal; storing, at a memory of the broadcast receiver, information corresponding to each of the at least one user terminal; requesting, from the broadcast receiver, location information of the user terminal; receiving the location information and ambient environment information from the user terminal in response to the request, wherein the environment information is selected from the user terminal, the ambient environment information from the user terminal relates to the location information, and the ambient environment information is received with the location information, wherein the ambient environment information is one of audio information or video information of the user terminal; retrieving geographical information stored in the broadcast receiver, wherein retrieving the geographical information includes: determining whether or not the location information includes the geographical information; and retrieving geographical information stored in the broadcast receiver when the location information does not include geographical information; continuously marking locations of the user terminal in an order in which a plurality of corresponding location information are received from the user terminal to mark a movement path of the user terminal; displaying, on a screen of the broadcast receiver, the geographical information and the movement path as a line of movement of the user terminal, and outputting the ambient environment information received from the user terminal related to the location information; receiving a power-off request from a user; receiving a request to continue receiving the location information from the user terminal; and turning off power to certain components of the broadcast receiver, and continuing storing the location of the user terminal.