Method and apparatus for controlling subtitle display of closed captioning programs

摘要

The present invention relates to a method and apparatus for controlling subtitle display of a closed captioning program. In particular, when a current caption level is higher than a predetermined level when each caption is assigned to a caption in the broadcast program, the lower level than the setting level is replaced. Insert a subtitle signal with the subtitle signal and subtitle rating signal into the program, and if the current subtitle rating is higher than the parental level when the program is playing, display the subtitles with a lower rating than that of the current subtitle while limiting the video and audio. It was designed to let you know the contents of the program while performing parental control. In the present invention, the subtitle rating determiner 202 determines the rating of the current subtitle based on the preset subtitle rating, and if the rating of the current subtitle is higher than the preset rating, the subtitle generating unit 206 Synthesizing and transmitting the generated subtitle signal to the subtitle signal and the video and audio signals, and when the program is reproduced, the subtitle rating signal 213 separates and decodes the subtitle rating signal in the program. Comparing the rating signal with a preset parental level, and in the case where the rating for each subtitle is higher than the reference level, the parental level is restricted through the parental control unit 214, the subtitle generating unit 216, and the signal synthesizer 217. And performing the operation of decoding the subtitle signal and displaying the subtitle instead of the original subtitle.