摘要 |
<p>An embodiment of the present invention includes: a process for multiplexing sub data including video data, audio data, an event information table (EIT), and a program map table (PMT) into an MPEG-2 transport stream. Here, the EIT or the PMT includes a caption descriptor including caption information and the caption descriptor includes the caption information indicating whether the caption data is data for supplying a digital closed caption service according to an electronic industry association (EIA)-708 or data for supplying an analog closed caption service. The present invention includes a process for modulating and transmitting the multiplexed MPEG-2 transport stream into a broadcast signal.</p> |