Method and system for providing wireless LAN service using rental digital television

A system for providing a wireless LAN service using a rental digital television, the system comprising:

• a management authentication server in which lease service subscriber information and wireless LAN service subscriber information is stored;
• an advertisement image server in which advertisement image information is stored:
• a terminal of a second user including a modem for accessing an access point;
• and
• a wireless-LAN-embedded digital television leased to a first user, wherein, when the wireless-LAN-embedded digital television is powered on, a TV tuner and an access point included in the wireless-LAN-embedded digital television is activated if the first user is a lease service subscriber and, when the wireless-LAN-embedded digital television is connected to the terminal of the second user, the wireless-LAN-embedded digital television provides a wireless LAN service to the terminal of the second user if the second user is a wireless LAN service subscriber regardless of whether the second user is a lease service subscriber or not,
• wherein the management authentication server records information of the first user including a lease fee and registers the first user as a lease service subscriber when the first user has made a digital television lease request and adjusts the lease fee according to the number of times and how long terminals access the access point,
• wherein the wireless-LAN-embedded digital television includes:
• the TV tuner for outputting a received broadcast signal to a display panel;
• the access point connected to a wired network, the access point being accessed by the terminal;
• a service server, wherein, when the wireless-LAN-embedded digital television is turned on, the service server accesses the management authentication server to determine whether or not the first user is a lease service subscriber and, when the terminal has accessed the access point, the service server accesses the management authentication server to determine whether or not the second user is a wireless LAN service subscriber;
• a packet receiver for accessing the advertisement image server and receiving the advertisement image information;
• an image storage for storing the received advertisement image information;
• and
• an image transmitter for outputting an image produced by decoding the stored advertisement image information to a screen.