Abstract: The present disclosure relates to a coding education block recognition system which can stably recognize a plurality of blocks in an AR (Augmented Reality) environment within a limited time through placement of commands for inputting coding puzzles created in the form of tangible blocks that can be directly handled by the learner's hand.

Abstract: A robot control system for coding education may include: a robot configured to move according to a tangible block including a command, and having a plurality of motors therein; a control unit configured to independently control the plurality of motors; and a tile board corresponding to the space in which the robot moves. The control unit may include a line detection unit configured to detect a line of the tile board in order to check whether the robot moves according to the tangible block. The line detection unit may include line information which is configured in a different manner depending on whether the line is present within a detection radius of the line detection unit. The order information of the tangible block may be read by a block recognition algorithm, and the block recognition algorithm may map the tangible block placed on a 3D space to a 2D space.

Abstract: Disclosed is a system and method of providing a TV program sharing service that enables sharing of a TV program among EPG-based TV sets and/or set top boxes, and thus enables recording of the already broadcast program whenever a user desires to do so. The system includes a TV client for directly uploading a program stored in its own storage device to another TV client, or for directly downloading a program stored in a storage device of another TV client to itself, and a shared program management center for storing record information of the programs stored in the TV clients in its own database, and enabling a mutual transfer of the programs among the TV clients using its database.

Abstract: An apparatus and method of converting audio/video data storage format in a digital television receiver is disclosed. The present invention effectively compresses and stores broadcasting data to secure more storage space of a hard disk, thereby allowing a storage of a larger amount of the broadcasting data. Particularly, a format or a picture quality of a broadcasting data may be converted to secure more storage space.

Abstract: Disclosed is a system and method of providing a TV program sharing service that enables sharing of a TV program among EPG-based TV sets and/or set top boxes, and thus enables recording of the already broadcast program whenever a user desires to do so. The system includes a TV client for directly uploading a program stored in its own storage device to another TV client, or for directly downloading a program stored in a storage device of another TV client to itself, and a shared program management center for storing record information of the programs stored in the TV clients in its own database, and enabling a mutual transfer of the programs among the TV clients using its database.