Patent ID: 7898600

Claim:
An apparatus for providing multiple screens, the apparatus comprising: an interface module through which a picture-in-picture (PiP) service providing mode is selected; a digital signal processing module which receives a service, restores from a received signal only a video component of the service in a first PiP service providing mode, and restores from the received signal a background video or the video component of the service in a second PiP service providing mode; a service processing module which generates the multiple screens, including a plurality of logical screens and a display screen for displaying a component restored by the digital signal processing module and connects the restored component to the plurality of logical screens; and an output module which associates the logical screens to an arbitrary location of the display screen and includes a plurality of output ports via which the display screen is provided, wherein the output module associates the video component of the service to a main screen among the plurality of logical screens in the first PiP service providing mode, and associates the background video or the video component of the service to a PiP screen among the plurality of logical screens in the second PiP service providing mode, and wherein if the PiP service providing mode is the first mode, an application associated to the service cannot be executed.