Abstract: A method of operating a video display device is provided. A reception unit obtains uncompressed audio and video content. A display unit displays the uncompressed audio and video content. An enhanced service management unit receives first content information comprising a trigger based on first characteristic information extracted from the uncompressed audio and video content, executes an application related to the uncompressed audio and video content based on the trigger, receives second content information related to the uncompressed content based on second characteristic information extracted from the uncompressed audio and video content, and terminates the application when the content information satisfies an application termination condition.

Abstract: A method of operating a power control device that controls a power device includes subscribing an event for a change in a resource usage state of the power device; and receiving the event for the change in the resource usage state of the power device if the resource usage state of the power device is changed.

Abstract: A method of processing an interactive service and an apparatus thereof are disclosed. The present invention includes sending a discovery message to a second screen application, receiving a request for descriptions of the second screen support services, sending a response with the descriptions, receiving a trigger, and delivering the trigger to the second device using a trigger service.

Abstract: A method of processing an interactive service and an apparatus thereof are disclosed. The present invention includes sending a discovery message to a second screen application running in a second device, wherein the discovery message advertises second screen support services that the first device can provide, receiving a request for descriptions of the second screen support services from the second screen application, sending a response with the descriptions to the second screen application, providing a HTTP proxy server using a HTTP proxy server service allowing the second device to access files that are received by the first device in a broadcast stream, wherein the HTTP proxy server service is one of the second screen support services, receiving the files from the broadcast stream and delivering the files to the second device via the HTTP proxy server.

Abstract: A method of processing a digital service signal and an apparatus thereof are disclosed. The present invention includes executing a primary application for the digital service signal, wherein the primary application is a triggered application or a non-triggered application, transmitting messages of interactive services for a secondary application associated with the primary application, wherein the interactive services includes a first mode related to the triggered application or a second mode related to the non-triggered application, receiving a request for descriptions identifying the interactive services, transmitting the descriptions having service id information identifying each of the interactive services and service type information indicating a type of the each of the interactive services, and providing the interactive services by transmitting information for the interactive services.

Abstract: After the calling of the playback action of the first resource, the control device calls a multiple resource prefetch action including a plurality of prefetch resource identifiers for a plurality of prefetch resources. The media renderer prefetches the plurality of prefetch resources from the media server on the basis of the plurality of prefetch resource identifiers. The control device calls a playback action of a second resource corresponding to one of the plurality of prefetch resources. The media renderer provides seamless transition between the first resource and the second resource.

Abstract: A method of operating a video display device is provided. A reception unit obtains uncompressed audio and video content. A display unit displays the uncompressed audio and video content. An enhanced service management unit receives first content information comprising a trigger based on first characteristic information extracted from the uncompressed audio and video content, executes an application related to the uncompressed audio and video content based on the trigger, receives second content information related to the uncompressed content based on second characteristic information extracted from the uncompressed audio and video content, and terminates the application when the content information satisfies an application termination condition.

Abstract: After the calling of the playback action of the first resource, the control device calls a multiple resource prefetch action including a plurality of prefetch resource identifiers for a plurality of prefetch resources. The media renderer prefetches the plurality of prefetch resources from the media server on the basis of the plurality of prefetch resource identifiers. The control device calls a playback action of a second resource corresponding to one of the plurality of prefetch resources. The media renderer provides seamless transition between the first resource and the second resource.

Abstract: An operation method of a first client device is provided. The client device transmits device information to a cloud server device. The client device receives an operational state of a second client device from the cloud server device. The client device establishes a logical session with the second client device based on the operational state. The client device transmits a first event through the logical session. The first event is transmitted to the second client, preferentially over a second event which does not go through any logical session.

Abstract: A method of operating a power control device that controls a power device includes subscribing an event for a change in a resource usage state of the power device; and receiving the event for the change in the resource usage state of the power device if the resource usage state of the power device is changed.

Abstract: A method of processing an interactive service and an apparatus thereof are disclosed. The present invention includes sending a discovery message to a second screen application, receiving a request for descriptions of the second screen support services, sending a response with the descriptions, receiving a trigger, and delivering the trigger to the second device using a trigger service.

Abstract: A method of processing an interactive service and an apparatus thereof are disclosed. The present invention includes sending a discovery message to a second screen application, receiving a request for descriptions of the second screen support services, sending a response with the descriptions, receiving a trigger, and delivering the trigger to the second device using a trigger service.

Abstract: A method of processing an interactive service and an apparatus thereof are disclosed. The present invention includes sending a discovery message to a second screen application, receiving a request for descriptions of the second screen support services, sending a response with the descriptions, receiving a trigger, and delivering the trigger to the second device using a trigger service.

Abstract: A method of processing a digital service signal and an apparatus thereof are disclosed. The present invention includes executing a primary application for the digital service signal, wherein the primary application is a triggered application or a non-triggered application, transmitting messages of interactive services for a secondary application associated with the primary application, wherein the interactive services includes a first mode related to the triggered application or a second mode related to the non-triggered application, receiving a request for descriptions identifying the interactive services, transmitting the descriptions having service id information identifying each of the interactive services and service type information indicating a type of the each of the interactive services, and providing the interactive services by transmitting information for the interactive services.

Abstract: A method of processing an interactive service and an apparatus thereof are disclosed. The present invention includes sending a discovery message to a second screen application running in a second device, wherein the discovery message advertises second screen support services that the first device can provide, receiving a request for descriptions of the second screen support services from the second screen application, sending a response with the descriptions to the second screen application, providing a HTTP proxy server using a HTTP proxy server service allowing the second device to access files that are received by the first device in a broadcast stream, wherein the HTTP proxy server service is one of the second screen support services, receiving the files from the broadcast stream and delivering the files to the second device via the HTTP proxy server.

Abstract: A method of processing an interactive service and an apparatus thereof are disclosed. The present invention includes sending a discovery message to a second screen application, receiving a request for descriptions of the second screen support services, sending a response with the descriptions, receiving a trigger, and delivering the trigger to the second device using a trigger service.