摘要:
A method of decoding/encoding a content file is provided. The method of decoding a content file includes dividing an encoded content file into a plurality of data blocks, grouping the plurality of data blocks into a plurality of groups, generating a group content key for each of the plurality of groups, generating a plurality of block keys for the data blocks in each of the plurality of groups from the group content key generated for each of the plurality of groups, and decoding the plurality of data blocks using the plurality of block keys.
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:
A method and apparatus for providing digital rights management (DRM) content and a license, and a method and apparatus for using DRM content are provided. The method of providing DRM content and a license includes selecting usage conditions for content; transforming the usage conditions into a secure database (DB); and adding the secure DB to a license. The method of using DRM content generated by applying DRM includes searching for a license corresponding to the DRM content; authenticating a user who wants to use the DRM content; extracting usage conditions included in the license by using a secure DB agent, and confirming whether or not an action desired to be performed by the user satisfies the usage conditions; and if the action desired to be performed by the user satisfies the usage conditions, using the DRM content according to the action.
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 are a method and apparatus for reproducing at least one piece of content received via at least one interface. The method includes classifying the at least one piece of content respectively received via the at least one interface according to a reference attribute, allocating the classified at least one piece of content to a virtual channel, and selecting a channel from among set channels that include the virtual channel and an occupied basic channel.
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 reproducing at least one piece of content received via at least one interface. The method includes classifying the at least one piece of content respectively received via the at least one interface according to a reference attribute, allocating the classified at least one piece of content to a virtual channel, and selecting a channel from among set channels that include the virtual channel and an occupied basic channel.
摘要:
A portable memory device supporting a plurality of interfaces includes a body, a first connector disposed on an end of the body, a slider adjacent to the body so as to slide back and forth between a first position exposing the first connector and a second position covering the first connector, a second connector disposed on an end of the slider to connect the portable memory device to another electronic device via an interface different from an interface that the first connector supports, and a memory disposed inside the body and connected to the first connector and the second connector.
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.
摘要:
Provided are a method and apparatus for processing multimedia content and metadata in order to efficiently manage the metadata. The method includes forming an audio/video content file structure comprising a plurality of fundamental units for storing multimedia data and metadata, and adding metadata update related information to each of the fundamental units.