METHOD OF PROCESSING AN INTERACTIVE SERVICE RELATED TO A BROADCAST PROGRAM AND APPARATUS THEREFOR

摘要

A broadcast receiver for processing a bi-directional service related to a broadcast program according to an embodiment of the present invention includes: a tuner for receiving trigger information including information on the operation timing of a triggered declarative object (TDO), the trigger information including at least one of first URL information providing information on the location of a signaling server providing a TDO parameter table, first trigger identification information identifying a trigger in the TDO, first time information setting a reference time for the trigger, and second time information setting the operation time of the trigger; a first network interface accessing the signaling server by using the first URL information and receiving the TDO parameter table signaling metadata information on at least one TDO in a specific segment from the signaling server, the TDO parameter table including second URL information providing information on the location of a content server providing at least one file in the TDO and second identification information identifying a trigger in the TDO; a second network interface accessing the content server by using the second URL information and receiving at least one file in the TDO; a widget engine operating the trigger; and a video processor producing a video image including a broadcast program and a TDO due to the trigger operation.