Apparatus, method and system for detecting additional data for preventing forgery of video content, rendering apparatus interoperating with display apparatus, and rendering method thereof

A method for detecting additional data for preventing forgery of video content and displaying the video content, comprising:

• by a content input unit, receiving the video content, the video content including the additional data;
• by a display unit, displaying the video content;
• by an additional data detector, detecting the additional data from the video content, the additional data including a watermark;
• and
• by a display controller, controlling a display screen of the video content according to an additional data detection result.

A rendering apparatus interoperating with a display apparatus, comprising:

• a communication unit communicating with a wired or wireless network;
• a content input unit for receiving video content through the wired or wireless network using the communication unit, the video content including additional data;
• an additional data detector for detecting the additional data included in the video content, the additional data including a watermark;
• and
• a content rendering controller for determining whether the video content is played in the display apparatus according to a first detection result of the additional data and instructing control information with respect to rendering of the video content to be provided to the display apparatus.

A video content rendering method in a rendering apparatus interoperating with a display apparatus, comprising:

• receiving video content through a wired or wireless network, the video content including additional data;
• detecting the additional data included in the video content, the additional data including a watermark;
• and
• determining whether the video content is played in the display apparatus according to a first detection result of the additional data and instructing control information with respect to rendering of the video content to be provided to the display apparatus.