| 摘要 |
PURPOSE: A digital television receiver is provided to use other stream data except data transmitted under data broadcasting environment of a digital television, and to use a synchronized presentation time stamp, thereby supplying bidirectional contents under graphic environment by synchronization with a broadcasting program. CONSTITUTION: A synchronization information receiver(310) receives synchronization reproducing information, which includes synchronization information with a broadcasting program and location information related to a specific area within a video frame. A downloading unit(320) downloads software for executing contents related to the broadcasting program. An indication input unit(380) inputs indication information of a user. A transmitter(350) informs the user of a processed result. A memory(340) stores the software. A micro processor(330) executes the software stored in the memory, and relates the received broadcasting program with the synchronized location information and the indication information, then synchronizes the information with the broadcasting program to transmit the synchronized result to the transmitter. |
