| 摘要 |
<p>ENCODING AND DECODING OF SUBTITLE DATA IS PERFORMED IN REAL TIME. A BUFFER (68) REGULATES A FLOW RATE OF THE SUBTITLE DATA TO ENSURE THAT THE APPROPRIATE SUBTITLES ARE SUPERIMPOSED WITH THE CORRECT VIDEO PICTURE. IN ENCODING, SUBTITLES ARE GENERATED IN CORRESPONDENCE TO A VIDEO PICTURE. THE SUBTITLES ARE SEPARATELY ENCODED AND MULTIPLEXED WITH THE VIDEO PICTURE FOR TRANSMISSION. UPON DECODING, THE SUBTITLES ARE SELECTED AT A TIME WHICH CORRESPONDS TO THE DISPLAY OF THE CORRESPONDING VIDEO PICTURE. SINCE THE SUBTITLES ARE PROCESSED SEPARATELY FROM THE VIDEO DATA, THE SUBTITLES MAY BE MANIPULATED WITH GREAT CONTROL; THUS PROVIDING MORE FLEXIBILITY IN ENCODING AND DECODING (FIG. 1)</p> |
