Abstract: Provided are a watermark insertion apparatus and method. The watermark insertion method includes acquiring content through upload by a user, storing the uploaded content, receiving a content conversion request from a user or a manager, determining whether content for which content conversion has been requested is video or an image, converting the content according to the determined content kind, and inserting watermark suitable for the content kind into the converted content.

Abstract: Provided are a system and a method that analyze a use environment of a user to provide a user adaptive interface suitable for the user. The system acquires an image of a user by using a camera built/equipped in a display displaying an interface, analyzes a physical use environment of the user from the acquired image, sets/changes the interface displayed by the display according to the analyzed result, and provides the set/changed interface. The system provides a user adaptive interface by using a camera which is included in general displays.

Abstract: Provided are a watermark insertion apparatus and method. The watermark insertion method includes acquiring content through upload by a user, storing the uploaded content, receiving a content conversion request from a user or a manager, determining whether content for which content conversion has been requested is video or an image, converting the content according to the determined content kind, and inserting watermark suitable for the content kind into the converted content.

Abstract: A theater seat providing a multi-dimensional sense is provided which allows the audience to directly or indirectly sense various special effects to be absorbed in a movie by stimulating the audience's five senses and presenting environmental conditions substantially similar to the movie. The theater seat providing a multi-dimensional sense includes: a seat having a seat section, a backrest, and a headrest; a motion unit allowing the seat to move vertically, horizontally, and anteroposteriorly; a vibration unit applying local vibrations to a user's hips, femoral region, and back and waist; a speaker transmitting sounds to the user; an actuator stimulating the user's back and waist; an ejection device ejecting a predetermined special effect material to the user; and a controller controlling operations of the motion unit, the vibration unit, the speaker, the actuator, and the ejection device.

Abstract: A theater seat providing a multi-dimensional sense is provided which allows the audience to directly or indirectly sense various special effects to be absorbed in a movie by stimulating the audience's five senses and presenting environmental conditions substantially similar to the movie. The theater seat providing a multi-dimensional sense includes: a seat having a seat section, a backrest, and a headrest; a motion unit allowing the seat to move vertically, horizontally, and anteroposteriorly; a vibration unit applying local vibrations to a user's hips, femoral region, and back and waist; a speaker transmitting sounds to the user; an actuator stimulating the user's back and waist; an ejection device ejecting a predetermined special effect material to the user; and a controller controlling operations of the motion unit, the vibration unit, the speaker, the actuator, and the ejection device.