Abstract:
A receiving apparatus estimates a transmission channel of a signal through a training signal that is inserted into a data area of a received multipath signal, i.e., a mobile signal and a terrestrial signal that is coupled to the mobile signal, and estimates a transmission channel by detecting a received mobile signal using a previously equalized signal of a mobile signal and a transmitting signal corresponding to a terrestrial signal that is coupled to the mobile signal through determined data. Mobile signal data corresponding to training signal distortion existing in terrestrial signal data are compensated based on a channel estimation value.
Abstract:
Provided are an apparatus for executing interoperable digital rights management (DRM) using a contents device and a method of performing an operation between the contents device and a DRM tool for interoperable DRM, and more particularly, a method and apparatus for executing a DRM tool in various environments, regardless of the type of device or type of DRM tool, using an interfaced DRM executing apparatus including a DRM processor or a DRM tool agent.
Abstract:
Provided are an apparatus and method for controlling program conversion according to program protection information. The method for controlling conversion of a broadcasting program includes: demultiplexing a broadcasting program into broadcasting program data and program protection information; encrypting the broadcasting program data based on distribution condition of the program protection information when recordation of the broadcasting program data is requested; and recording the encrypted broadcasting program data.
Abstract:
An apparatus and method for detecting a keyword are provided. The method for detecting a keyword includes collecting RSS information, extracting terms from the RSS information, calculating importance levels of the terms, and selecting a keyword from among the terms based on the importance levels.
Abstract:
This research discloses a digital broadcasting contents transmitting/receiving apparatus that can quickly and easily purchase broadcasting contents, and a method thereof. The apparatus for receiving a digital broadcasting includes: a broadcasting contents receiver configured to receive a broadcasting content and first program protection information (PPI) including distribution scope information of the broadcasting content; a content storage configured to store the received broadcasting content; a purchase requester configured to transmit purchase request information according to a purchase request of a user for the stored broadcasting content; and a PPI controller configured to replace the first PPI with second PPI transmitted to the broadcasting contents receiver in response to the purchase request and including information on a changed distribution scope of the broadcasting content for which the purchase request is made.
Abstract:
Provided are an apparatus for executing interoperable digital rights management (DRM) using a contents device and a method of performing an operation between the contents device and a DRM tool for interoperable DRM, and more particularly, a method and apparatus for executing a DRM tool in various environments, regardless of the type of device or type of DRM tool, using an interfaced DRM executing apparatus including a DRM processor or a DRM tool agent.
Abstract:
Provided are an apparatus and method for controlling program conversion according to program protection information. The method for controlling conversion of a broadcasting program includes: demultiplexing a broadcasting program into broadcasting program data and program protection information; encrypting the broadcasting program data based on distribution condition of the program protection information when recordation of the broadcasting program data is requested; and recording the encrypted broadcasting program data.
Abstract:
A system for authenticating personal use of contents by using a portable storage medium includes: a portable personal use authentication device configured to store domain authentication information; and a contents personal use authentication apparatus configured to extract playback information for playing a provided content based on the domain authentication information and provide the extracted playback information to a player.
Abstract:
Disclosed are a master terminal capable of registering and managing terminals that belong to a personal use scope, which will be referred to as personally used terminals or personal use terminals, hereafter, and a method and system for managing personal use terminals by using the master terminal. The method for managing a personal use group using a first master terminal to register and manage terminals belonging to a personal use scope includes: requesting a second master terminal that belongs to the personal use scope for personal use group information; receiving the personal use group information from the second master terminal; and registering a terminal that belongs to the personal use scope as the personal use group based on the received personal use group information.
Abstract:
Disclosed is a method and system for storing encryption key information and package key information for decrypting encrypted broadcasting programs to store broadcasting programs. The method for protecting broadcasting programs includes generating and storing information about a first encryption key for encrypting broadcasting programs, and generating package key information by encrypting the first encryption key using a second encryption key.