摘要:
Provided are an apparatus and method for determining the integrity of content in at least one packet of a plurality of packets. A content using apparatus includes a receiver which receives a transport packet including content in at least one packet and a secret set, which includes an integrity check key generated for determining the integrity of the content, and extracts the secret set by processing the transport packet, a storage unit which stores the secret set, a controller which uses the secret set to determine whether each packet having the content maintains integrity, and a data processing unit which processes the at least one packet if the at least one packet is determined to be maintaining integrity. Accordingly, when content is transmitted, the integrity of the content can be checked using only a small amount of transmission data and a small amount of computation.
摘要:
A method and apparatus for managing digital content are provided. The apparatus for managing digital content generated by applying digital rights management (DRM) includes: a content execution unit executing digital content; and a control unit confirming whether or not digital content is in a first period in which the digital content can be normally executed, and controlling the content execution unit so that, if the digital content is in the first period, the digital content can be executed normally, and if the digital content is in a second period which is not in the first period, the digital content can be executed in a manner which can be distinguished from that of execution in the first period. According to the apparatus and method, execution of digital content, which is close to expiration, can be controlled, thereby managing the expiration of the digital content for a user.
摘要:
Provided is a multimedia data recording method including: receiving one or more search object items for searching for scenes including the same kind of information from media data; selecting one or more scenes that contain each of the search object items during the input of the media data; generating metadata including one or more pieces of scene information from among an index or reproduction time of the selected scenes; and recording the metadata onto a header region and recording the media data onto a payload region.
摘要:
Provided are a method and apparatus for generating a movie-in-short (MIS). The method includes extracting metadata, in which predetermined points of time of content are recorded, generating a list of at least one MIS by using storage addresses of the points of time or reproduction points of time, which are indicated by the extracted metadata, storing the list, and reproducing a summary by reproducing the content during a predetermined time based on a point of time indicated by at least one MIS of the stored list.
摘要:
Provided is a multimedia data recording method including: receiving one or more search object items for searching for scenes including the same kind of information from media data; selecting one or more scenes that contain each of the search object items during the input of the media data; generating metadata including one or more pieces of scene information from among an index or reproduction time of the selected scenes; and recording the metadata onto a header region and recording the media data onto a payload region.
摘要:
Provided is a method of executing a media file including at least one media resource, the method including: importing the media file including the media resource and media information that includes at least one digital item about the media resource, at least one template, and at least one application; and selecting one piece of the media information, and executing an event of one or more media resources associated with the media information, based on the selected one piece of the media information, wherein the digital item includes the media resource and identification information of each media resource, the template includes an event of the at least one digital item and execution environment information of the event, the application includes association information of the template and the digital item, and the media information is adapted to be imported and exported.
摘要:
Provided are a method of selecting the most suitable content reproducing apparatus on the basis of minimum resource information required to reproduce content and capability information of the content reproducing apparatus, and a content reproducing apparatus selector using the method. The method includes: receiving a content file, which includes minimum resource (MR) metadata including the minimum resource information required to reproduce content, from a content providing server or a content providing medium; receiving device level (DL) metadata per device from a plurality of content reproducing apparatuses, wherein the DL metadata includes capability information of the content reproducing apparatus; determining whether at least one of the content reproducing apparatuses described by the DL metadata can reproduce the content described by the MR metadata; and selectively renewing the MR metadata on the basis of a result of the determining.