Auxiliary data insertion in a transport datastream
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United States of America Patent
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Sep 7, 2004
Grant Date -
N/A
app pub date -
Nov 6, 1998
filing date -
Mar 19, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A digital device, such as a digital VTR, receives and records an MPEG compatible datastream. On play back, the DVTR inserts packetized auxiliary information, such as on-screen display information, into the transport datastream for transmission to another digital device, such as a television receiver. Time stamps in the MPEG compatible datastream are unaffected by the insertion of the auxiliary information. The DVTR VSB modulates the datastream to provide sufficient bandwidth for the auxiliary information in the datastream.
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