Video data decoder and method for decoding video data
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United States of America Patent
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Jun 10, 2014
Grant Date -
Feb 3, 2011
app pub date -
Dec 31, 2008
filing date -
Jan 18, 2008
priority date (Note) -
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Abstract
A decoder includes a storage space that records video data and subtitle data in multiplexed form; a first buffer memory operating in “First In First Out” mode and able to temporarily contain the video data in packet form; a second buffer memory operating in “First In First Out” mode and able to temporarily contain the subtitle data in packet form; a demultiplexer configured to transmit the video data and subtitle data respectively to the first and second buffer memories; and a local clock, wherein the storage space includes a storage space configured to store the time references such that the demultiplexer transmits the time references, the decoder including a generator to generate a presentation time stamp associated with each subtitle data packet not initially containing a presentation time stamp, the presentation time stamp being determined from a time reference value transmitted by the demultiplexer and enabling the presentation of the subtitle data packets to be synchronized with relation to the local clock.
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