Patent ID: 7620971

Claim:
A set-top box, comprising: a reception module for receiving digital broadcast signals; a demultiplexer for extracting a broadcast signal of a channel selected by a user from the received digital broadcast signals; a decoding module for decoding the extracted broadcast signal using a predetermined method; an on-screen display (OSD) control module for dividing OSD animation data into a plurality of subsets, loading each of the subsets in an operating cycle, determining whether a user has input a key command in an operating cycle defined by a period of time, and selectively providing the loaded subsets based on the determination result in an operating cycle, wherein the subsets of the OSD animation data produces a moving picture when displayed; and a combination control module for receiving the loaded subsets from the OSD control module and overlaying them onto the decoded broadcast signal, and providing the overlaid result to a display device.