Apparatus for generating video contents with balloon captions, apparatus for transmitting the same, apparatus for playing back the same, system for providing the same, and data structure and recording medium used therein

摘要

A contents generating apparatus generates balloon data required for providing video contents with balloon captions. Balloon data includes at least one piece of information among information about time to display a balloon, information about an area where the balloon is to be displayed, information about a shape of the balloon, and information about caption text to be inserted in the balloon. A contents transmitting apparatus multiplexes balloon data and contents data, and causes a broadcast apparatus to broadcast the multiplexed data. A contents playback apparatus analyzes the balloon data to generate a signal for a balloon image and a signal for caption text, combines these signals with a signal for a video image, and then causes a contents display apparatus to display the video with balloon captions.