Abstract: A hybrid catalyst composition containing a heterogeneous transition metal compound, a catalyst for olefin polymerization containing the heterogeneous transition metal compound, and a method for preparing an olefin-based polymer in which generation of a gel is suppressed using the catalyst are disclosed. The method for preparing an olefin-based polymer can provide an olefin-based polymer in which non-uniformity of the olefin-based polymer, and in particular, generation of a gel is suppressed.

Abstract: Disclosed is a system for providing a cloud service. The system includes an integrated cloud providing unit which integrates contents information which is transmitted from at least one digital media server (DMS) which is connected to a first network, and provides contents to a terminal which is connected through a second network, based on the integrated contents information, and a connection management unit which manages connection of the terminal to the first network using identification information of the least one DMS.

Abstract: The present invention provides a method and apparatus for switching channels to reduce channel zapping time, which use channel information generated prior to channel switching and generates audio and video data of a switched channel, thereby skipping a process of calculating channel information of a channel to be switched at the time of channel switching.

Abstract: The present invention provides a method and apparatus for switching channels to reduce channel zapping time, which use channel information generated prior to channel switching and generates audio and video data of a switched channel, thereby skipping a process of calculating channel information of a channel to be switched at the time of channel switching.

Abstract: A real-time content transcoding method, apparatus, and system, and a real-time content receiving apparatus and method are provided. The real-time content transcoding method includes: generating a candidate content list on the basis of a transcoding-related information supportable by a transcoder with respect to content requested by a user terminal; transmitting the candidate content list to the user terminal; and transcoding the content in a manner corresponding to a content information selected by the user terminal in real time and transmitting the transcoded content to the user terminal.

Abstract: Disclosed is a system for providing a cloud service. The system includes an integrated cloud providing unit which integrates contents information which is transmitted from at least one digital media server (DMS) which is connected to a first network, and provides contents to a terminal which is connected through a second network, based on the integrated contents information, and a connection management unit which manages connection of the terminal to the first network using identification information of the least one DMS.