Patent ID: 8634701

Claim:
A method for controlling a digital data reproducing apparatus, the method comprising: obtaining, by the digital data reproducing apparatus, emotional information associated with at least one of a user and a content; displaying an object indicating whether to reproduce a content according to the emotional information; entering into an emotional information application mode based on a user's selection; modifying at least one of audio and video characteristics of the content for reproduction based on at least the emotional information, wherein the modifying step includes modifying a depth of a 3D content according to the emotional information; and reproducing the content based on the modified at least one of audio and video characteristics of the content; and exchanging the emotional information with other users watching the same content over a network; wherein obtaining emotional information further includes: capturing an image of at least a part of a user's body; recording the user's voice; sensing, via a body signal sensing unit in a remote control unit, physical attributes of the users to generate physical information of the user; and determining the emotional information of the user based on at least two of the captured image, the recorded voice, or the sensed body signal.