Abstract: A content management system entails analyzing similarity of the contents distributed among at least one network element (e.g., contents server) and managing the contents on the basis of the analysis result. The content management server analyzing similarities of content files and providing the similarities information includes a communication unit that collects content information from at least one content server stored the content files and the content information corresponding to the content files; a digital content management (DCM) control unit which analyzes similarities of the content files received from the content server; a storage which stores information on the similarities analyzed by the DCM control unit; a content information comparison unit which detects the content information in response to a similar content file request transmitted from a client on the basis of the similarities information.

Abstract: A method for updating contents of a Digital Media Server (DMS) in a digital living network alliance system (DLNA) is disclosed. An update process is performed through a periodic update event in a Digital Media Player (DMP) that receives all content information of the DMS. Upon determining that information loss has occurred in the update process, the DMP sends to the DMS a request for information about a list of items possessed by the DMS. The DMP receives the requested information about the list of items and compares the received information about the list of items with information about pre-stored items to obtain a comparison result. When a difference occurs as the comparison result, all information about contents of the DMS is obtained through a browse action. When the difference does not occur as the comparison result, the update process is continuously performed.

Abstract: Disclosed is a method and system for efficiently providing a multi-content, including a plurality of contents in one service, by means of a service guide upon providing the multi-content in an Open Mobile Alliance (OMA) mobile broadcasting system. When a broadcast transmitting apparatus provides a broadcast receiving apparatus with a multi-content by inserting a plurality of content into one service, the broadcast transmitting apparatus sets one of the plurality of content as a primary content, and provides a service guide including primary-content setting information to the broadcast receiving apparatus. The primary content represents a content set to be primarily provided to a user, among a plurality of content included in one service and simultaneously provided during a specific time period. The primary-content setting information represents information for identifying the primary content. The primary-content setting information may be included in a content fragment or schedule fragment of a service guide.

Abstract: A method for providing a multimedia messaging service according to the present invention includes the steps of: collecting multimedia contents accessible through a network in response to a request for preparing a multimedia message, generating the multimedia message including multimedia file access information by selecting a multimedia file from the collected multimedia contents, converting the multimedia message to a web page, transmitting the web page as an Internet mail, extracting the multimedia file access information from the web page included in the mail after receiving the mail, accessing a multimedia file by using the multimedia file access information and executing the multimedia file.

Abstract: Disclosed are a digital broadcasting system and a method for transmitting and receiving electronic service guide data in a digital broadcasting system, which communicates applications capable of executing content files downloaded through a file download service. The digital broadcasting system includes a digital broadcasting transmitter for broadcasting Electronic Service Guide (ESG) data which includes application information corresponding to respective content files, and a digital broadcasting receiver for receiving the broadcasted ESG data and executing applications corresponding to the respective content files by using the application information included in the ESG data.

Abstract: Disclosed is a system and a method for managing applications installed in home network devices (HNDs) providing services on an Open Service Gateway initiative (OSGi®) framework. In the system, a mobile hand-held device (MHD) including a display unit is defined as the subject of application management between a plurality of HNDs and an application server for storing applications of the HNDs. Service frameworks existing in a plurality of HNDs including vehicle devices are based on OSGi®, and interoperation between the MHD and the HNDs depends on a Digital Living Network Alliance® (DLNA®) standard.

Abstract: A system and method for Digital Right Management (DRM) of Digital Video Broadcasting (DVB). The system for DRM of DVB includes a DVB transmitting device for transmitting content for the DVB and information on user's rights object for the content, and a DVB receiving device for receiving and storing the transmitted content, and playing the stored data in accordance with the information on the user's rights object. A sneak post view problem occurring during the DVB is solved, and thus the digital rights for the DVB content are efficiently protected. In solving the sneak post view problem, the existing rights object and the construction of the security association database can be used, without adding a separate construction.

Abstract: The present invention relates to a content management system and method of content management on a portable device. The content management system of the present invention includes a storage unit which stores at least one content file, a content list manager which creates a content list of contents files satisfying at least one monitoring condition and manages the content list on the basis of events occurring in the storage unit, and a monitoring unit which monitors the events occurring in the storage unit and transmits information on the events to the content list manager.

Abstract: A method for sharing content using a Digital Living Network Alliance (DLNA) network is disclosed. The method includes the steps of creating a DLNA VPN (Virtual Private Network) between an inside-home DLNA network and at least one outside-home DLNA device, and delivering content from an inside-home DLNA device connected to the inside-home DLNA network to an outside-home DLNA device contained in the DLNA VPN in response to a request for content from the outside-home DLNA device. The method further allows continuous sharing of content, even if IP addresses of devices connected to the DLNA VPN are changed, by managing dynamic IP addresses of the devices connected to the DLNA VPN using an external network management server. Thus, the method allows outside-home DLNA devices to freely share content using a DLNA network. The method also allows various contents to be processed on a mobile terminal regardless of a storage space and processing capability of the mobile terminal.

Abstract: The present invention relates to a system and method for retransmitting high definition contents broadcasted on a plurality of channels to IP-supported devices such as a digital media player (DMP), a mobile phone, personal computer (PC), etc. which are connected through a DLNA network. The method for retransmitting the broadcasted high definition contents includes the steps of generating a virtual item by converting channel information for a digital TV broadcast into an Extensible Markup Language (XML) file format, transmitting the virtual item to the DMP, determining whether there is a request for a personal TV service (PTS) from the DMP, tuning to a channel corresponding to the PTS if there is the request for the PTS, storing and packetizing a digital TV broadcast stream received through the PTS channel, and transmitting the packetized digital TV broadcast stream to the DMP.

Abstract: A Digital Living Network Alliance (DLNA) network that stores, in real time, data, such as motion pictures, still images, audio sounds, etc., collected from outside of the home into a storage device located, preferably, in the home. In particular, a data collecting device requests a device search through the home network, receiving an acknowledgement from a storage device, requests device information from the storage device, receives the device information from the storage device, configures a storage path of the data collecting device using the device information, and stores data it collects into the storage device using the storage path. It is accordingly possible to allow the user to conveniently play back the data collected by the handheld device using the household appliances without additional manipulation for transferring the collected data, despite the limited storage capacity of the handheld device.

Abstract: A method and system for managing schedule information using a digital living network alliance (DLNA) network are disclosed. The method includes receiving a schedule memo stored in a portable terminal via a DLNA network, analyzing the schedule memo and creating a query for searching for supplementary information related to the schedule memo, transmitting the created query to a Web server, receiving, in reply to the query, a Web search result from the Web server, generating detailed schedule information using the Web search result and transmitting the detailed schedule information to the portable terminal via the DLNA network.

Abstract: Disclosed are a system and method for controlling home appliances using a short message service. When receiving a short message including an access code from a mobile terminal, the home server checks the status of the connected home appliances and sends a short message including control codes corresponding to the status of the home appliances to the mobile terminal. The mobile terminal checks the control codes to confirm the status of the home appliances, and displays corresponding images. When the user requests to control the status of a specific home appliance, the mobile terminal automatically generates a corresponding short message and sends the short message to the home server. The home server checks the message, controls the corresponding home appliance, and then sends a short message including current status information of the controlled home appliance to the mobile terminal.

Abstract: A Digital Living Network Alliance (DLNA) system and method transform multimedia contents in a manner adaptive to the available data processing capability of the digital media renderer (DMR) of the DLNA network. A digital media server (DMS) and a digital media renderer (DMR) are discovered. A list of contents provided by the DMS is obtained. Information on a transport protocol and a data format of the DMR is obtained. Information on available data processing capability of the DMR is obtained. The transport protocol and the data format of the DMS are matched to those of the DMR. Transcoding and transrating schemes of the DMS are adjusted based on the available data processing capability of the DMR. A connection between the DMS and the DMR is established, and content stored in the DMS is transmitted to the DMR.

Abstract: A method for providing a user interface configured using three frames for a Digital Media Player (DMP) in a Digital Living Network Alliance (DLNA) system. Each of all source, renderer, and menu items of the DLNA system is set to one axis of a set of axes. Two predetermined axes of the set of axes and a contents list are selected according to selection by a DMP user of an operation to be performed within the DLNA system. A user interface of the DMP is configured using two frames for displaying the two predetermined axes and one frame for displaying the contents list.

Abstract: Provided is an apparatus and a method for transmitting/receiving Electronic Service Guide (ESG) data in a digital video broadcasting system. The method includes creating ESG data bursts by grouping ESG data supporting a plurality of languages for each ESG support language; establishing sessions corresponding to respective ESG data bursts; creating ESG setting data including session information and ESG grouping criteria information, the session information including Internet Protocol (IP) addresses and port numbers corresponding to the entire sessions, respectively, the ESG grouping criteria information indicating that the ESG data bursts are grouped for each ESG support language; and broadcasting the ESG setting data via a specific session and broadcasting the ESG data bursts via the established sessions.

Abstract: Disclosed are a digital broadcasting system and a method for transmitting and receiving electronic service guide data in a digital broadcasting system, which communicates applications capable of executing content files downloaded through a file download service. The digital broadcasting system includes a digital broadcasting transmitter for broadcasting Electronic Service Guide (ESG) data which includes application information corresponding to respective content files, and a digital broadcasting receiver for receiving the broadcasted ESG data and executing applications corresponding to the respective content files by using the application information included in the ESG data.

Abstract: A method and a terminal for recording a broadcast stream so that, when the recorded broadcast stream is reproduced, a viewing restriction is placed. The method includes receiving a broadcast stream transmitted in real time and a message containing viewer rating information, and storing the viewer rating information together with the broadcast stream as a media file of a particular file at a broadcast stream recording request. When the stored broadcast stream is reproduced, the same viewing restriction is placed as when the broadcast is watched in real time.

Abstract: A system and method for Digital Right Management (DRM) of Digital Video Broadcasting (DVB). The system for DRM of DVB includes a DVB transmitting device for transmitting content for the DVB and information on user's rights object for the content, and a DVB receiving device for receiving and storing the transmitted content, and playing the stored data in accordance with the information on the user's rights object. A sneak post view problem occurring during the DVB is solved, and thus the digital rights for the DVB content are efficiently protected. In solving the sneak post view problem, the existing rights object and the construction of the security association database can be used, without adding a separate construction.

Abstract: Disclosed is a method and system for efficiently providing a multi-content, including a plurality of contents in one service, by means of a service guide upon providing the multi-content in an Open Mobile Alliance (OMA) mobile broadcasting system. When a broadcast transmitting apparatus provides a broadcast receiving apparatus with a multi-content by inserting a plurality of content into one service, the broadcast transmitting apparatus sets one of the plurality of content as a primary content, and provides a service guide including primary-content setting information to the broadcast receiving apparatus. The primary content represents a content set to be primarily provided to a user, among a plurality of content included in one service and simultaneously provided during a specific time period. The primary-content setting information represents information for identifying the primary content. The primary-content setting information may be included in a content fragment or schedule fragment of a service guide.