Patent ID: 7711883

Claim:
An apparatus of performing a plug and play function for a digital television, the apparatus comprising: a device searching module configured to search an external device physically connected to the digital television through a predetermined interface; a storing unit configured to store a device type and a connection state of the external device which was previously searched; a connection state analyzing module configured to determine whether the searched external device from the device searching module was previously connected to the digital television to perform the plug and play function by comparing the device type and the connection state of the searched external device with the device type and the connection state in the storing unit in response to detecting the physical connection of the searched external device to the digital television; a reproducing function verifying module configured to determine whether data stored in the searched external device is processable by the digital television and to generate a determination result when the device type and the connection state of the searched external device does not match with the device type and the connection type in the storing unit; and a plug and play module configured to display the determination result from the reproducing function module and a selection menu to control the searched external device to perform a target function according to a user's input when the data in the search external device is processable, and to terminate when the device type and the connection state of the external device matches with the device type and connection type in the storing unit or the data in the searched external device can not be processed.