Abstract: Provided are a method and apparatus for providing and using content advisory (CA) information on Internet contents. A method of providing CA information by using a CA information server, includes receiving a request for the CA information on a content, from an Internet Protocol television (IPTV); searching for CA information on the content; and transmitting the found CA information to the IPTV. A method of using CA information when an IPTV reproduces a content not having the CA information, according to the present invention, includes transmitting a request for CA information, to a CA information server; receiving the CA information from the CA information server; analyzing the CA information; and applying the CA information.

Abstract: A method and apparatus for restricting a control operation with respect to reproduction of media data so as to commercially implement consumption of the media data, the method and apparatus including: restricting the control operation with respect to reproduction of the media data by using a predetermined Application Programming Interface (API); and reproducing the media data received from a media server, according to the restricted control operation.

Abstract: A method and apparatus for providing a pair play service, the method including: searching, by a master device, for a slave device that provides the pair play service; searching, by the master device, for the pair play service of the searched slave device; and searching, by the master device, for a pair play application constituting the searched pair play service.

Abstract: A system, apparatus, and method of providing a personal broadcasting service according to scheduling are provided. The system for providing a personal broadcasting service includes a producer client which produces and transmits a broadcasting schedule, a broadcasting server which establishes a broadcasting channel according to the broadcasting schedule and provides broadcasting content produced by the producer client through the broadcasting channel, and a viewer client which receives the broadcasting content through the broadcasting channel.

Abstract: A method of reproducing an advertisement in an audio/video (AV) content receiver which receives AV contents via a broadcasting network and an IP network, the method including receiving a second file including information regarding an address of a first file which includes information required for reproducing an AV content and metadata of an advertisement content to be inserted to the AV content and reproduced with the AV content; receiving the first file based on the received second file; and inserting the advertisement content to the AV content based on the metadata of the advertisement content included in the first file and reproducing the advertisement content with the AV content.

Abstract: A method and apparatus for controlling a device relaying an IPTV service by an apparatus using the IPTV service are provided. The apparatus includes an application driving unit which drives an application that is used to access the IPTV service, and a browser driving unit which drives a browser that provides the application with a driving environment for the application to access the IPTV service, wherein the browser comprises at least one application programming interface (API) related to controlling the device.

Abstract: A method and apparatus for downloading and storing non-real time content are provided. The apparatus includes a browser driver which drives a browser, and a storage unit. The browser includes a first interface for extracting information about a transmission schedule of non-real time content included in a real time broadcasting signal and transmitting the extracted information to an application, and a second interface for downloading the non-real time content according to a download request from the application based on the transmission schedule. The storage unit stores the non-real time content downloaded by the second interface.

Abstract: A method and apparatus of generating and storing bookmark information regarding a point of time during reproduction of audio/video (AV) content are provided. The information storage apparatus includes: a browser driver which drives a browser, the browser including an application programming interface (API) which generates information regarding a point of time according to reproduction of audio/video (AV) content; and a storage unit which stores the information regarding the point of time, wherein the API generates the information regarding the point of time by receiving metadata regarding the point of time from an application program related to the reproduction of the AV content, and matching the metadata with an identifier of the AV content.

Abstract: A method and apparatus for using a service of an Internet Service Provider (ISP) from among a plurality of ISPs are provided. The method includes: receiving information regarding a plurality of servers respectively operated by the plurality of ISPs from a server managing information regarding the plurality of ISPs; searching for an ISP which provides Internet access to the client from among the plurality of ISPs by accessing at least one of the plurality of servers according to the received information; and using a service of the ISP which provides the Internet access to the client and is discovered based on the searching.

Abstract: A method and apparatus for providing a pair play service, the method including: searching, by a master device, for a slave device that provides the pair play service; searching, by the master device, for the pair play service of the searched slave device; and searching, by the master device, for a pair play application constituting the searched pair play service.

Abstract: A method and an apparatus for receiving a notification in a terminal entity that uses a service provided from an outside of a residential network through a gateway entity are disclosed.

Abstract: A method and apparatus for receiving an application for providing an Internet protocol television (IPTV) communication service. The method includes: acquiring IP address information for initiating an IPTV service provider discovery at an entry point for searching for a service provider; receiving information regarding an IPTV service provider from an IPTV service provider discovery entity apparatus by using the IP address information; and acquiring information regarding the application for providing the IPTV communication service based on the information regarding the IPTV service provider.

Abstract: A method and apparatus for a client, connected to a broadcasting network and an Internet network, to receive data for executing an application through the broadcasting network or the Internet network, according to information about the application received through the broadcasting network.

Abstract: A method and apparatus for restricting a control operation with respect to reproduction of media data so as to commercially implement consumption of the media data, the method and apparatus including: restricting the control operation with respect to reproduction of the media data by using a predetermined Application Programming Interface (API); and reproducing the media data received from a media server, according to the restricted control operation.

Abstract: A method and apparatus for providing contents-sharing services are provided. The method for providing contents-sharing services includes: receiving a contents-sharing request message for a contents sharer from a first contents reproducing apparatus of a contents sharing requester; transmitting a contents-sharing notify message generated using the received contents-sharing request message to a second contents reproducing apparatus of the contents sharer; and transmitting the received contents-sharing request message to a streaming server, wherein the transmitted contents-sharing request message requests the streaming server to transmit contents to the second contents reproducing apparatus of the contents sharer.

Abstract: A method and apparatus for controlling content recording for a buddy of a management server are provided. The method includes: receiving a recording request message for the buddy according to an external input; determining whether a local recording apparatus of the buddy is in a recording state; and selectively sending a recording start message to a recording apparatus on a network, different from the local recording apparatus of the buddy, according to a result of the determining.

Abstract: A method and apparatus for receiving metadata regarding an application providing an internet protocol television (IPTV) service, in which a metadata request message for requesting metadata regarding an application providing at least one IPTV service is generated, the metadata request message is transmitted to a second entity apparatus, and a metadata response message including the metadata regarding the application providing the at least one IPTV service is received from the second entity apparatus, in response to the metadata request message.

Abstract: Provided are a method of receiving metadata including keywords related to content data and searching for supplementary data by using the keywords after the content data is reproduced, and an apparatus therefore. The method comprises receiving content data to be reproduced; receiving metadata including at least one keyword related to the content data; and searching for supplementary data related to the content data by using the at least one keyword included in the metadata. According to the present invention, metadata may be accessed during reproduction of content data or after the content data is completely viewed by using a keyword table, and supplementary data may be easily found in a television (TV) browser, by displaying the keywords as recommended keyword buttons.

Abstract: Multimedia content is provided continuously for multiple users each potentially moving to a different place while enjoying it together. The system includes a network for transmitting preferably IP-format data, a first device for outputting particular multimedia content received through the network, and a second device for outputting a second multimedia content prepared for, and received upon requesting, continuous provision of the particular multimedia content through the network. A contents server delivers the particular multimedia content and the second multimedia output to the first and second devices, respectively. The second multimedia content consists of the part of the particular multimedia content remaining to be transmitted at the point of time at which the second device requested the continuous provision of the particular multimedia content.

Abstract: Provided are a method and apparatus for providing and using content advisory (CA) information on Internet contents. A method of providing CA information by using a CA information server, includes receiving a request for the CA information on a content, from an Internet Protocol television (IPTV); searching for CA information on the content; and transmitting the found CA information to the IPTV. A method of using CA information when an IPTV reproduces a content not having the CA information, according to the present invention, includes transmitting a request for CA information, to a CA information server; receiving the CA information from the CA information server; analyzing the CA information; and applying the CA information.