Digital data transmission apparatus, digital data reception apparatus, digital broadcast reception apparatus, digital data transmission method, digital data reception method, digital broadcast reception method, and computer program
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United States of America Patent
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Aug 21, 2007
Grant Date -
Jan 20, 2005
app pub date -
Jul 15, 2004
filing date -
Jul 18, 2003
priority date (Note) -
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Abstract
A multiplexer 106 conducts time division multiplexing on various data trains input from a digital broadcast reception tuner 103 and various interfaces 104 and 105 while adding packet arrival time correction information. A demultiplexer 109 demultiplexes time division multiplexed data multiplexed by the multiplexer 106, corrects packet arrival time on the basis of the packet arrival time correction information. A PCR correction section 110 corrects a system clock on the basis of the packet arrival time correction information added by the multiplexer 106. As a result, it becomes possible to transfer an MPEG2 stream and other data in concurrent while maintaining program synchronization.
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