Apparatus and method of displaying video data in digital TV

A method for displaying video data on a screen in a digital television system, the method comprising the steps of:

• (a) tuning to a channel desirably selected by a viewer;
• and
• (b) displaying said video data depending on a total number of video IDs of said selected channel and whether a multi-angle mode is set, wherein displaying the video data includes:
• displaying said video data depending on whether said multi-angle mode is set when a determined total number of said video IDs is larger than one;
• and
• decoding said video data and displaying said decoded video data when said determined total number of said video IDs is equal to one.

A method of displaying video data on a screen in a digital television system, the method comprising the steps of:

• tuning to a channel selected by a viewer;
• determining whether a total number of video IDs of said selected channel is larger than one;
• decoding all sets of said video data received into a multi-video stream and displaying all sets of said video data on said screen if said total number of video IDs is larger than one and a multi-angle mode is set;
• and
• decoding sets of said video data progressively and displaying a first decoded set of said video data if said total number of video IDs is larger than one and a multi-angle mode is not set.

A method of displaying video data on a screen in a digital television system, the method comprising:

• receiving a plurality of video data sets representing a series of multi-angle pictures through a single channel;
• displaying one of the series of multi-angle pictures on an entire portion of the screen by decoding a corresponding video data set received;
• displaying a first multi-angle icon on the screen for indicating that the displayed picture is one of the series of multi-angle pictures;
• and
• displaying all of the series of the multi-angle pictures on divided portions of the screen when a multi-angle picture function is activated.

An apparatus for displaying video data in a digital television system, the apparatus comprising:

• a digital signal detector to detect digital image signals corresponding to a channel selected by a viewer;
• a processor to generate a control signal to display said detected digital image signals depending on a channel number of said selected channel, a total number of video IDs, and whether a multi-angle mode is set;
• a demultiplexer to divide said detected digital image signals into video, audio and supplemental information streams based on said control signal;
• and
• an image processor to process said video stream based on said control signal to generate displayable image signals, wherein said multi-angle mode comprises a mode in which to simultaneously display a plurality of sub-screens on a display.