Subtitle encoding/decoding method and apparatus

Details Subtitle encoding/decoding method and apparatus Subtitle encoding/decoding method and apparatus

H - Electricity

04

N

H04N 5/278 (2006.01) G11B 27/031 (2006.01) G11B 27/30 (2006.01) H04N 7/088 (2006.01) H04N 9/82 (2006.01) G11B 20/10 (2006.01) H04N 5/783 (2006.01) H04N 9/804 (2006.01) H04N 9/806 (2006.01) H04N 5/44 (2006.01) H04N 5/445 (2006.01) H04N 7/52 (2006.01) H04N 7/62 (2006.01)

Patent

CA 2172011

Encoding and decoding of subtitle data is performed in real time. A buffer 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.

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