Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Reexamination Certificate
2006-06-14
2010-11-30
Chevalier, Robert (Department: 2621)
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
C386S349000, C386S349000
Reexamination Certificate
active
07844166
ABSTRACT:
In a random access reproduction of a stream in which video and audio are multiplexed, it is difficult to reproduce the video and audio in synchronization. A demultiplexer (110) separate a video packet, an audio packet, and a subtitle packet from the inputted multiplexed stream and supplies them to a video decoder (130), an audio decoder (140), and a subtitle decoder (150), respectively. The video decoder (130) decodes the inputted video packets and calculates PTS of the display head picture according to the PTS of the decoded head picture acquired from the video stream. A clock control unit (120) supplies the PTS of the display head picture as a synchronization signal to the audio decoder (140) and the subtitle decoder (150). The audio decoder (140) and the subtitle decoder (150) decode an audio and a subtitle access unit having the PTS value identical to the display head PTS.
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Chevalier Robert
Frommer William S.
Frommer & Lawrence & Haug LLP
Levy Paul A.
Sony Computer Entertainment Inc.
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